Perinatal glucocorticoid sensitivity in the preterm newborn: molecular mechanisms, endogenous determinants, and clinical implications

Glucocorticoids are steroid hormones that regulate multiple physiological processes throughout the lifespan and play a central role in the adaptive stress response. Their biological effects are mediated by the glucocorticoid receptor, which acts through both genomic and nongenomic mechanisms to regulate transcriptional signatures and intracellular signaling pathways, respectively. These effects are tissue- and context-dependent, allowing the body to adapt to developmental and environmental changes. Glucocorticoid-mediated effects are influenced by both hormone bioavailability and tissue-specific responsiveness. Reduced glucocorticoid sensitivity has been observed in patients with severe disease or a diminished response to synthetic glucocorticoid therapies. During the perinatal period, the endogenous glucocorticoid cortisol exerts unique developmental effects on the late-gestation fetus that are essential for extrauterine life. Antenatal glucocorticoid therapy has demonstrated beneficial effects in preventing prematurity-related diseases, while postnatal glucocorticoid treatment reduces inflammation and improves oxygenation in bronchopulmonary dysplasia. However, these therapies exhibit variable responses, both in terms of their beneficial and adverse effects. Furthermore, preterm newborns are exposed to adverse intrauterine environments, including placental insufficiency and infection, which—when combined with immaturity—result in dysregulated perinatal glucocorticoid homeostasis. Intrauterine stressors can therefore alter fetal glucocorticoid sensitivity, partially explaining the variability in clinical outcomes observed among preterm newborns. These adverse conditions may also interact with genetic and physiological factors, such as gestational age and fetal sex, further amplifying glucocorticoid homeostasis dysregulation. In this review, we explore the clinical and basic science evidence on the endogenous determinants of perinatal glucocorticoid sensitivity, with an emphasis on their clinical implications for disease risk and the efficacy of glucocorticoid therapy in the preterm newborn.

1 Introduction

Glucocorticoids are essential hormones for vertebrate life that act via the glucocorticoid receptor (GR), a nearly ubiquitously expressed molecule with diverse functions throughout the body (1, 2). Their principal biological effect is the maintenance of glucose homeostasis, in coordination with other metabolic hormones (2). Additionally, they participate in the adaptive stress system in a stressor-dependent manner (2, 3). During pregnancy, glucocorticoids rise at three discrete windows to regulate embryo implantation, adrenal gland development, and fetal organ development necessary for extrauterine life (4, 5). Regarding the latter, synthetic antenatal corticosteroid (ACS) therapy was developed and has proven to be the most effective intervention to prevent preterm-related morbidity (6). A single course of ACS, typically consisting of two 12 mg intramuscular doses of betamethasone administered 24 h apart between 24 and 34 weeks of gestation, is currently accepted by most governing bodies (7–10). In addition, postnatal corticosteroids (PCS), usually low-dose systemic dexamethasone administered after 7 days of life in high-risk preterm newborns, are effective in treating bronchopulmonary dysplasia (BPD) (11, 12). Although perinatal glucocorticoid therapy effectively mitigates complications associated with preterm birth, significant variability in treatment response persists. Endogenous factors, including pregnancy complications such as intrauterine growth restriction (IUGR), maternal diabetes, and chorioamnionitis, are believed to influence ACS efficacy (13, 14). In addition, exogenous determinants—such as type of steroid, timing, and dosing regimen–affect responses to both ACS (5, 15, 16) and PCS (17, 18). Growing awareness has highlighted the clinical significance of these endogenous and exogenous factors in modulating perinatal glucocorticoid sensitivity and influencing neonatal outcomes (19). To this end, we undertook a review of the literature on endogenous factors that influence fetal/neonatal glucocorticoid sensitivity and their impact on short-term outcomes in preterm newborns. This narrative review first outlines key concepts in glucocorticoid physiology and interindividual variability in sensitivity across the general population. It then discusses the primary biological and therapeutic effects of perinatal glucocorticoids before analyzing existing literature on endogenous factors associated with glucocorticoid sensitivity variability in preterm newborns. Our goal is to highlight critical knowledge gaps and encourage future research in this important research field.

2 Glucocorticoid physiology

The synthesis and secretion of endogenous glucocorticoids are under the control of the hypothalamic-pituitary-adrenal (HPA) axis, which in turn is regulated by the diurnal circadian rhythm (1, 2). This neuroendocrine axis begins with the hypothalamic secretion of corticotropin-releasing hormone (CRH) and vasopressin that act synergistically to increase the release of adrenocorticotropic hormone (ACTH) from the anterior pituitary gland into the circulation. ACTH subsequently stimulates the adrenal cortex to secrete glucocorticoids (1, 2). Cortisol is the primary endogenous glucocorticoid in humans that classically regulates metabolism. It has been proposed that through its role in energy mobilization, glucocorticoids acquired auxiliary effects in other organ systems involved in the stress response, including the immune, central nervous, and cardiovascular systems (2). Cortisol circulates bound to the corticosteroid binding globulin (CBG), and only ~ 5% unbound cortisol is able to cross the plasma membrane and bind to GR (1, 2). Notably, cortisol also binds to the mineralocorticoid receptor (MR) with a similar affinity to that of the GR (1, 2). However, physiological levels of cortisol do not induce mineralocorticoid effects because 11β-hydroxysteroid dehydrogenase type 2 (11β-HSD2) inactivates cortisol into cortisone in tissues with high MR expression (1). In contrast, organs with high sensitivity to glucocorticoids, such as the liver, adipose tissue, and skeletal muscle, highly express 11β-HSD1, which catalyzes the reverse reaction of 11β-HSD2, thereby increasing cortisol bioavailability (1). Altogether, the regulation of the HPA axis, plasma CBG levels, and tissue expression of 11β-HSD enzymes ultimately determine cortisol bioavailability, which, in conjunction with tissue-specific GR expression and function, dictates the specific biological responses. Synthetic glucocorticoids like dexamethasone and betamethasone were developed to specifically activate GR and thus have little mineralocorticoid activity (2). These synthetic GR agonists, which are resistant to 11β-HSD inactivation, are widely used in pediatric and adult patients as anti-inflammatory agents, as well as in preterm fetuses/newborns to prevent prematurity-related morbidity and mortality.

2.1 Glucocorticoid receptor physiology: structure

GR is encoded by the ~ 126-kb NR3C1 gene and is composed of nine exons (Figure 1) (1, 20). The primary mRNA transcript consists of the 5′ untranslated region (5′UTR) encoded by exon 1, the N-terminal transactivation domain encoded by exon 2, the DNA-binding domain encoded by exons 3 and 4, the hinge region encoded by exon 5, the ligand-binding domain encoded by exons 6–9, and the 3′ untranslated region (3′UTR). The N-terminal domain contains the activation function 1 domain (AF-1) that recruits co-regulators in a ligand-independent manner, while the ligand-binding domain contains a second transactivation domain (AF-2) that serves as a platform for a different set of ligand-dependent coregulators (20, 21). The DNA-binding domain contains two zinc-binding motifs necessary for dimerization and DNA binding, while the hinge region contains two nuclear localization signals needed for transport through the nuclear pore (20, 21). GR is nearly ubiquitously expressed, yet glucocorticoids exert context- and tissue-dependent biological effects partly due to an array of transcript variants and protein isoforms. Alternative splicing of GR mRNA results in splice variants GRα, GRβ, GRγ, GRA, and GRP. Among these, GRα is the primary isoform that mediates the majority of glucocorticoid actions. GRα includes all nine exons and is the most abundant isoform (1, 20). GRβ is also generated by the primary transcript, thereby containing all 9 exons, but differs from GRα on an alternative splice site at the end of exon 8 (1, 20). Therefore, GRβ, by lacking crucial regions of the ligand-binding domain, was previously assumed to be unable to bind glucocorticoids, translocate into the nucleus, or directly regulate gene expression. However, recent evidence demonstrates that GRβ binds to the glucocorticoid antagonist RU486, localizes in both the nucleus and cytoplasm, and modulates gene expression (22, 23). Currently, GRβ is considered a dominant negative inhibitor of GRα by forming inactive heterodimers (1, 22). Remarkably, GRβ abundance is approximately 1,000-fold less than that of GRα, and thus, its contribution to glucocorticoid-mediated biological effects continues to be under debate (20). The GRγ isoform contains a trinucleotide insertion in the boundary of exons 3 and 4, which introduces a single arginine residue at position 452 in between the zinc fingers of the DNA-binding domain. GRγ constitutes ~ 5%–10% of total GR transcripts, has shown impaired transactivation activity, and has been proposed to regulate mitochondrial homeostasis (24, 25). GRA lacks exons 5–7, while GRP is missing exons 8 and 9, resulting in both isoforms lacking important regions of the ligand-binding domain, which limits their function (1, 20). GRA is the most understudied isoform, with only one report of its expression in a myeloma cell line (26). GR-P is upregulated in certain cancers and glucocorticoid-resistant cell lines, suggesting a role of this isoform in decreased glucocorticoid sensitivity (20, 27).

Figure 1

Figure 1. Structure and regulation of the human GR. The NR3C1 gene, which encodes the human GR, consists of nine alternatively spliced exons and proximal and distal promoter regions. Multiple genetic variants have been reported; shown are four of the most commonly studied polymorphisms. The proximal promoter is embedded in a CpG island known to be regulated by methylation. The proximal and distal promoters contain nine alternative, untranslatable exon 1 variants. Differential promoter usage leads to 5′UTR isoform diversity. In addition, alternative splicing results in five GR transcriptional variants that lead to different protein isoforms: GRα, GRβ, GRγ, GRA, and GRP. The main isoform, GRα, mediates the majority of glucocorticoid biological effects. GRβ has an alternative exon 9, does not bind to cortisol, and is thought to act as a transcriptional inhibitor of GRα. GRγ has an additional codon that translates into an arginine at position 452 and mediates glucocorticoid effects in mitochondria. GRA and GRP have further exon deletions and exhibit reduced and distinct transcriptional profiles compared with GRα. All mRNA isoforms can be regulated epigenetically by microRNAs. Alternative translation protein isoforms for GRα have also been described, resulting in progressively shorter N-terminal domain-containing isoforms with differential transcriptional activities. Posttranslational modifications, including phosphorylation, acetylation, and SUMOylation, regulate GR nuclear translocation and transcriptional mechanisms of action. Finally, ubiquitination targets GRα for proteasomal degradation, thereby limiting glucocorticoid overshooting effects.

In addition to the splice variants, GR has eight alternative translation initiation sites in exon 2, arising from leaky ribosomal shunting of the mRNA (20). These GR protein isoforms have been observed only in GRα; all of them bind glucocorticoids and regulate gene transcription (20). They include GRα-A, GRα-B, GRα-C1, GRα-C2, GRα-C3, GRα-D1, GRα-D2, and GRα-D3, each with progressively shorter N-terminal domains (Figure 1). Interestingly, the overexpression of the individual protein isoforms in vitro results in distinct transcriptional regulatory profiles, with only about 10% overlap (28, 29). GRα-A is the canonical full-length GR protein isoform with 777 amino acids and is thought to mediate most of the glucocorticoid functions. GRα-B, with 751 amino acids, has demonstrated increased gene transactivation capacity compared to GRα-A (30). However, GRα-B regulates fewer genes than the full-length isoform, GRα-A, mainly because of its reduced transrepressive efficacy (28). GRα-C1–3 isoforms have 692, 688, and 680 amino acids, respectively. GRα-C1 and -C2 have similar dexamethasone-induced transactivation activity as GRα-A (29). GRα-C3 has the highest in vitro transactivation activity of all translational isoforms, which is thought to be mediated by the absence of amino acids 1–97, leading to enhanced recruitment of co-activators to the AF-1 domain (31). GRα-D1–3 isoforms are 462, 447, and 441 amino acids, respectively, and are predominantly localized in the nucleus in both the liganded and unliganded forms, likely due to the absence of amino acids 98–335 that results in conformational changes that expose the nuclear localization signals (32). GRα-D isoforms have the lowest in vitro transcriptional regulatory activity. In particular, they demonstrate reduced NF-κB interaction and decreased transrepression of proinflammatory and apoptotic genes compared to other isoforms (29, 32). These GR protein isoforms are regulated throughout development. For example, in the human prefrontal cortex, GRα-D expression is highest in neonates, and it decreases across the lifespan, whereas GRα-A peaks in adolescence (33). In dendritic cells, the more abundant GRα-D isoforms are replaced with GRα-A during maturation, leading to a more glucocorticoid-sensitive phenotype in the mature compared to immature cells (34). Although these studies suggest that expression patterns of GR isoforms contribute to unique cellular responses to glucocorticoids, future in vivo studies of GR mRNA/protein isoform overexpression are required to confirm GR isoform-specific functions. Furthermore, research on the mechanisms of GR isoform regulation is needed to advance our understanding of gene pathways involved in disease and glucocorticoid therapy response.

2.2 Glucocorticoid receptor physiology: regulation

The expression and function of GR are tightly regulated at the epigenetic, transcriptional, posttranscriptional, and posttranslational levels (Figure 1) (21, 35). The NR3C1 gene has nine alternative untranslated exon 1, each regulated by its own proximal promoter (36) that results in differential tissue expression (37, 38). The alternative first exons are located either in a distal promoter region (1A and 1I), located ~ 30 kb upstream of the translational start site, or a proximal promoter region (1B, 1C, 1D, 1E, 1F, 1H, and 1J), located ~ 0.4–5 kb upstream of the translational start site (35). Furthermore, the proximal promoters are embedded in a CpG island and thereby regulated by methylation and chromatin remodeling, further contributing to differential GR expression regulation (35). Posttranscriptional regulation of GR occurs partly via its 3′UTR region, which is enriched with functional adenylate uridylate-rich elements that recruit RNA-binding proteins, leading to mRNA degradation (35). In addition, various miRNAs such as miR-18, miR-124, and miR-142-3p have also been shown to target the GR 3′UTR for degradation, thereby decreasing glucocorticoid sensitivity (39, 40).

GR protein also undergoes posttranslational modifications that regulate protein stability and function, including ubiquitination, phosphorylation, SUMOylation, and acetylation (Figure 1). GR protein turnover is greatly stimulated in response to glucocorticoid binding through ubiquitination and subsequent proteasomal degradation (21). Liganded GR becomes ubiquitinated on the Lys419 residue by E3-ubiquitin ligases, which recruit the proteasome (21). Phosphorylation, a highly researched posttranslational modification, has been identified at Ser113, Ser134, Ser141, Ser203, Ser211, Ser226, and Ser404. GR phosphorylation occurs mostly at residues located in the N-terminal domain that contains the AF-1 domain. Therefore, phosphorylation can affect GR-ligand and DNA-binding activity, thus serving as another mechanism of fine-tuning tissue glucocorticoid response (21). For instance, Ser211 and Ser203 phosphorylation enhance GR transcriptional activity and are required for the full GR-mediated effects, whereas Ser226 and Ser404 phosphorylation promote GR nuclear export and thus limit GR genomic effects (41). Acetylation also regulates GR protein function: ligand binding induces cytosolic-GR acetylation at Lys494 and Lys495 residues, needed for nuclear translocation (42, 43). This is followed by nuclear-GR deacetylation by histone deacetylase 2, a required event for NF-κB transcriptional repression (42, 43). Finally, GR SUMOylation at Lys277, Lys293, and Lys703 has been shown to decrease protein stability, DNA binding ability, and transcriptional activity, leading to decreased GR function (21).

2.3 Glucocorticoid receptor physiology: molecular mechanisms of action

2.3.1 Genomic mechanisms of action

GR is localized in the nucleus, cytosol, mitochondria, and cell membrane (Figure 2). In the cytosol, GR is mainly found in its inactive form, complexed with chaperones such as HSP90, HSP70, and FKBP5 (1, 20). Upon ligand binding, GR dissociates from these cytosolic chaperones and translocates into the nucleus, where it exerts its genomic effects. Ligand-activated GR can regulate ~ 1%–20% of the transcriptome in an environment- and cell type-specific manner by using multiple mechanisms (1, 20). The classical mechanism consists of liganded GR homodimerization and binding to conserved palindromic DNA sequences known as glucocorticoid response elements (GRE), leading to gene transactivation. Glucocorticoids can also inhibit gene expression through various mechanisms, a research topic of significant interest due to its relevance to the anti-inflammatory effects of synthetic glucocorticoids. In the pregenomic era, it was thought that transrepression by GR did not require DNA binding but was mediated by monomeric GR interactions with other transcription factors, a mechanism known as tethering (44). This central mechanism became the core dogma of the anti-inflammatory effects mediated by glucocorticoids, particularly regarding their interactions with the proinflammatory factor NF-κB. However, in the past decade, GR ChIP-seq and GR transgenic mice studies have uncovered novel breakthrough mechanisms that have enabled a more comprehensive understanding of GR-mediated transrepression apart from tethering. For instance, it is now known that GR dimerization and DNA binding are both needed for full transrepression of proinflammatory genes (45, 46). Furthermore, novel GR genomic mechanisms, including cryptic site monomeric binding at proinflammatory transcription factor sites (47, 48), tetrameric GR binding to GREs (49), and inverted GR binding to nGRE sites (46), have also been discovered (Figure 2). Other studies have suggested that rapid (< 1 h) glucocorticoid transrepressive effects are mediated by GR–GRE interactions that sequester cofactors from other transcription complexes, leading to reduced activity of proinflammatory enhancer subsets within shared topologically associated domains (50). This mode of action is highly dependent on chromatin remodeling, which brings different subsets of GRE-containing promoters into close proximity with distant proinflammatory DNA elements. These novel mechanisms can explain why glucocorticoids only inhibit a fraction of NF-κB-responsive genes, why these transrepressive actions require GR–DNA binding, and why they induce different transcriptomic profiles according to cell type and environment. Finally, GR biological effects can also occur in a ligand-independent manner, as demonstrated by studies that showed GR activation in response to physical stressors such as chemicals, cellular pH changes, and temperature fluctuations (51).

Figure 2

Figure 2. Glucocorticoid molecular mechanisms of action. Cytosolic GR activation by ligand binding leads to the release of chaperones (HSP90, HSP70) and a switch from FKBP5 to FKBP4 that aids in GR nuclear translocation. Other signals, such as a change in cellular pH, can also activate GR in a ligand-independent manner. GR transcription was thought to be regulated by two main mechanisms: GRα homodimer binding to a palindromic glucocorticoid response element (GRE) to induce transactivation, and GRα monomer interaction with other transcription factors leading to transrepression, a process known as tethering. Different genomic mechanisms were later discovered, such as cryptic GRE half-sites, inverted negative GRE sites, and competitive mechanisms in topologically associated domains (TAD). Nongenomic effects of glucocorticoids are thought to be mediated by either an uncharacterized membrane GR (mGR), cytosolic GRα, or mitochondrial GRγ. First, mGR can signal through GTPases, thereby activating or inhibiting key signaling factors like adenylyl cyclase and calcium channels. Second, glucocorticoids can induce fluidity changes in the plasma membrane in a GR-independent manner, which alter the function of transmembrane proteins. Third, cytosolic GRα can interact with other signaling pathways, such as MAPK, either directly or indirectly through dissociated chaperone complex proteins. Lastly, GRγ can regulate mitochondrial functions like ATP synthesis and apoptosis through transcriptional and nongenomic mechanisms. Altogether, glucocorticoids exhibit multiple and complex mechanisms of action that underlie their diverse stimulus- and cell-type-specific biological effects.

2.3.2 Nongenomic mechanisms of action

Glucocorticoids also have rapid onset (seconds to minutes) and short-term (< 90 min) nongenomic effects that are independent of transcription (20) (Figure 2). These nongenomic mechanisms mediate glucocorticoid effects in mitochondrial homeostasis, apoptosis, intracellular calcium homeostasis, nitric oxide signaling, and skeletal/smooth muscle function (52). Cytosolic or membrane GR activation can induce rapid changes in different intracellular signaling pathways (52). It has also been proposed that, during receptor activation, dissociation of GR from the chaperones HSP90, HSP70, and FKBP5 may allow the liganded GR to directly interact with MAPK signaling proteins (53). Alternatively, an uncharacterized membrane GR can signal acutely through GTPases to other membrane-associated proteins, such as calcium ion channels, leading to changes in intracellular Ca²⁺ concentrations and other secondary messengers (52). Finally, GRλ has been shown to localize in the mitochondria, where it regulates cellular energy metabolism and apoptotic pathways via both genomic and non-genomic effects (25, 52). In this respect, previous studies have suggested that mitochondrial GR can bind to GRE-like DNA regulatory elements in the mitochondrial DNA and upregulate genes responsible for mitochondrial biogenesis and energy metabolism (52, 54).

3 Overview of endogenous determinants of glucocorticoid sensitivity

In healthy populations, longitudinal and cross-sectional studies have shown significant interindividual differences in basal and stressor-specific glucocorticoid sensitivity, typically assessed by cortisol levels and peripheral blood mononuclear cells (PBMC) in vitro response to dexamethasone (2, 55). These observational approaches have suggested that glucocorticoid sensitivity variability among healthy individuals is greatly determined by both genetic and early-life stressors (55). In addition, sexual dimorphism in glucocorticoid sensitivity has been conclusively demonstrated in adults and thought to be partially mediated by gonadal hormone regulation of the HPA axis and tissue GR expression and function (56, 57). For instance, premenopausal women in the luteal phase show similar basal free cortisol levels as age-matched men but higher total cortisol and CBG levels (58, 59). Furthermore, some studies have shown that certain stressors elicit a stronger in vivo HPA axis response and in vitro PBMC sensitivity to dexamethasone-induced repression of pro-inflammatory gene expression in men compared to women (58). Decreased PBMC sensitivity to dexamethasone in women compared to men can be partly explained by lower GR protein expression in T lymphocytes and neutrophils (60). Currently, sexual dimorphism in glucocorticoid sensitivity is thought to partly explain the increased risk of autoimmune diseases in women and the heightened susceptibility to metabolic and infectious diseases in men. Aging also influences glucocorticoid sensitivity: elderly populations exhibit reduced glucocorticoid-mediated inhibition of the HPA axis, higher basal cortisol levels, and lower in vitro PBMC sensitivity to dexamethasone compared to younger individuals. However, the underlying molecular mechanisms remain unclear (61). Lastly, and of clinical significance, interindividual variability of glucocorticoid sensitivity has been associated with disease severity and differential response to synthetic glucocorticoid treatment (55, 62). This has prompted extensive research across medical fields aimed at elucidating the mechanisms underlying dysregulated glucocorticoid sensitivity among patients, as discussed below.

3.1 Genetic determinants of glucocorticoid sensitivity

Population studies have identified four common genetic polymorphisms in the NR3C1 gene (Figure 1) that are associated with glucocorticoid sensitivity. The BclI variant (rs41423247) and the nonsynonymous N363S variant (rs6195) are associated with increased clinical glucocorticoid sensitivity, as evidenced by insulin resistance and central obesity (55, 63). Although the molecular mechanisms of increased glucocorticoid sensitivity remain unidentified, there is evidence of increased glucocorticoid sensitivity in cells overexpressing the N363S variant (64). In contrast, the ER22/23EK (rs6189–rs6190) and 9β (rs6198) variants are associated with decreased glucocorticoid sensitivity, as evidenced by improved metabolic parameters such as insulin sensitivity and muscle mass (55, 65). A potential mechanism for decreased glucocorticoid sensitivity in ER22/23EK variant carriers is the predominant expression of the GRα-A isoform, compared to the more sensitive GRα-C3 protein isoform, as demonstrated by in vitro overexpression assays (66). Conversely, carriers of the 9β variant have shown decreased GR transrepressive efficacy in vitro (67), in association with increased GRβ stability. This polymorphism has resurfaced as a clinically relevant biomarker of decreased response to synthetic glucocorticoid therapy in several diseases, such as childhood lymphoblastic leukemia (68) and coronavirus disease 2019 (COVID-19) (69). Overall, NR3C1 gene variants have modest contributions to metabolic phenotypes and glucocorticoid therapy efficacy. Current ongoing research approaches, such as the use of genome-wide association studies with RNA sequencing, are likely to unveil the complex gene–gene and gene–environment interactions and provide novel genetic biomarkers of glucocorticoid sensitivity.

3.2 GR expression as a determinant of glucocorticoid sensitivity

Perhaps the most widely researched and accepted endogenous determinant of tissue glucocorticoid sensitivity is GR levels, particularly in correlation with clinical responses to synthetic glucocorticoid therapy (55, 62). The main approach consists of examining GR expression before (baseline) and after glucocorticoid treatment in glucocorticoid-sensitive and glucocorticoid-resistant patients, classified according to symptom resolution. Lower baseline GR protein levels were observed in glucocorticoid-resistant compared to glucocorticoid-sensitive patients in pediatric asthma, adult immune thrombocytopenia, adult rheumatoid arthritis, adult interstitial lung disease, and adult systemic lupus erythematosus (55, 62, 70). Other studies reported significant differences between glucocorticoid-sensitive and -resistant patients in baseline GR mRNA isoforms; for instance, higher baseline GRβ in severe adult asthma (71) and higher GRλ in pediatric leukemia non-responders compared to responders (72). Therefore, GR expression is an important determinant of clinical outcomes and therapy response in such diseases. Conversely, other studies found similar baseline GR levels in both glucocorticoid-sensitive and glucocorticoid-resistant patients of adult asthma (73), chronic obstructive pulmonary disease (74), idiopathic nephrotic syndrome (75), and Vogt–Koyangi–Haradi syndrome (76), suggesting alternative GR-expression-independent mechanisms of glucocorticoid resistance. Presently, the mechanisms that lead to decreased GR expression in glucocorticoid-resistant patients remain mostly undefined, although unchecked inflammation has been proposed as a principal mechanism (55, 63). Altogether, these studies highlight the complex interaction of disease-specific factors in regulating GR expression and the limitations of studying GR number and affinity as a sole mechanism of glucocorticoid sensitivity. Moreover, the interventions to normalize GR expression in patients at risk of glucocorticoid resistance warrant future research.

3.3 GR function as a determinant of glucocorticoid sensitivity

PBMCs, or other available sources such as tissue biopsies, have been used to examine differential GR function in association with disease and glucocorticoid therapy. Similar to GR expression studies, in vitro cell-based approaches also showed correlation with clinical outcomes. Indeed, functional baseline in vitro dexamethasone resistance correlated with glucocorticoid resistance in patients with pediatric/adult asthma (70, 71), rheumatoid arthritis (55), systemic lupus erythematosus (55), chronic obstructive pulmonary disease (74), pediatric leukemia (77), alcoholic hepatitis (78), and inflammatory bowel disease (79). Importantly, novel mechanisms of decreased GR function, such as p38 MAPK activation, IL17A activation, and vitamin D deficiency, were uncovered with the aid of these cell-based assays (73, 80, 81). These discoveries led to clinical trials that improved clinical outcomes and glucocorticoid response in vitamin D-supplemented asthmatic patients (82). In addition, cell-based functional assays have been useful to study determinants and mechanisms of disease severity. For instance, in vitro dexamethasone resistance was observed in pediatric leukemia patients younger than 1.5 years in association with worse survivorship (77). Other studies revealed a decreased in vitro PBMC response to dexamethasone in correlation with the severity of major depressive syndrome (83) and sepsis (84), while no relationship was observed with coronary artery disease (85, 86), and equivocal results were reported with posttraumatic stress syndrome (87).

3.4 Cellular environment as a determinant of glucocorticoid sensitivity

The past decades have witnessed a surge in state-of-the-art omics strategies for the uncovering of tissue- and environment-specific molecular mechanisms of glucocorticoid sensitivity in patients requiring glucocorticoid therapy (88, 89). For example, tissue-dependent RNA-seq uncovered decreased glucocorticoid sensitivity in bronchoalveolar lavage immune cells compared to PBMCs in patients with asthma and COVID-19 (90), suggesting pulmonary-specific mechanisms of glucocorticoid resistance. Omic approaches have also aided in untangling complex disease-specific mechanisms of action. For instance, proteomics and metabolomics approaches have identified inhibition of neutrophil and platelet degranulation as a key mechanism of dexamethasone in COVID-19 patients (91), while multigenomic approaches have uncovered polymorphisms in glucocorticoid target genes associated with variability in gene expression regulation in pediatric asthma patients (92). Furthermore, integrated genomic (mRNA, polymorphisms) and epigenomic (miRNA, methylation) strategies have identified novel candidate genes for tailored dosing regimens, novel drug design, and synergistic drug combination therapies (93, 94). For example, an integrated multiomics study in acute lymphoblastic leukemia identified a novel regulatory gene that recapitulated drug resistance in vitro and led to a novel synergistic drug combination likely to improve clinical outcomes (94). These approaches have advanced the field of glucocorticoid sensitivity beyond GR-dependent mechanisms to include the role of the tissue-specific environment. Future integrated omics studies are expected to uncover the complex interplay between epigenetic chromatin remodeling and genetic variants in regulating tissue- and context-specific glucocorticoid sensitivity.

4 Perinatal glucocorticoid physiological and therapeutic effects

In most mammalian species studied to date, there is a dramatic surge in maternal and fetal cortisol towards the end of pregnancy, preparing the fetus for extrauterine life (95). This surge occurs through a complex interplay between the placenta and both maternal and fetal HPA axes (95). By the end of the second trimester, the placenta increases the secretion of CRH into the fetal circulation, where it stimulates the fetal HPA axis, resulting in increased cortisol (99). Concurrently, the placental CRH also stimulates maternal ACTH release, elevating maternal cortisol levels, which can saturate the placental 11β-HSD2 and thus cross unaltered into the fetal circulation (95). Paradoxically, cortisol does not inhibit placental CRH production as it does with hypothalamic CRH, creating a positive feedback loop that drives cortisol production until the end of pregnancy (95). Elevated fetal cortisol levels act as a molecular switch, regulating fetal growth and development by triggering a wide range of physiological changes in key organs, such as the lung, brain, heart, and kidney, helping the fetus adapt effectively after birth (Figure 3) (96). While not fully described in the human fetus, the ontogeny of the cortisol receptors (GR and MR) and bioavailability enzymes (11β-HSD1/2) in mice demonstrates physiological coordination in the expression of these genes with cortisol developmental effects (97, 98). Importantly, placental 11β-HSD2 plays an undisputed and critical role as a physiological barrier, protecting the fetus from excessive exposure to high levels of maternal cortisol before the late-pregnancy surge. This enzyme is widely expressed in most embryonic tissues, as well as in the placenta and extraembryonic membranes throughout gestation (97). In contrast, GR expression is low in earlier embryonic developmental stages, with mid-gestation increases in key organs, primarily in the lung, thymus, and pituitary gland, and secondarily in the liver, intestine, muscle, heart, and placenta (98).

Figure 3

Figure 3. Physiological and therapeutic effects of glucocorticoids in the perinatal period. The physiological surge in glucocorticoids toward the end of pregnancy promotes a sequence of maturational events that prepares the fetus for extrauterine life. Animal studies revealed a vital and primary role of glucocorticoids and GR in lung maturation, which led to the therapeutic use of antenatal corticosteroids in pregnancies at risk of preterm birth. Additionally, glucocorticoids contribute to the maturation of other fetal organs, including the brain, HPA axis, metabolic organs, cardiovascular system, gastrointestinal system, kidneys, and immune system. In the preterm newborn, however, the perinatal effects of both endogenous and synthetic glucocorticoids depend on a combination of exogenous factors, such as timing, type of steroid, and dosage, as well as endogenous factors, including genetic makeup, gestational age, fetal sex, and the presence of concomitant perinatal complications.

The physiological and therapeutic effects of perinatal glucocorticoids have been mostly elucidated with the aid of in vivo models of glucocorticoid deficiency, such as adrenalectomy, GR gene deletion or mutation, and synthetic glucocorticoid exogenous administration. In this respect, it is worth mentioning some limitations of these methods. For instance, GR gene manipulation strategies do not provide information on tissue-specific regulation of GR expression and function, and adrenalectomy is limited by timing and subject choice (fetal versus maternal). Exogenous glucocorticoid administration at earlier gestational ages (untimely) or at supraphysiological levels (excess) approaches are limited by the type of steroid, dosing, and timing. In addition, interspecies differences in gestational length and fetal maturational programs represent important limitations when extrapolating data to humans. This section illustrates the complex cellular and molecular mechanisms underlying glucocorticoid perinatal effects and highlights the dynamic role of gestational age as a primary regulator of these effects.

4.1 Perinatal glucocorticoid effects in the lung

Glucocorticoids play a critical role in the development of the pulmonary system in the late-gestation fetus. While investigating the role of cortisol in parturition, Liggins serendipitously discovered that antenatal cortisol infusion increased pulmonary surfactant production and aeration in preterm lambs (99). Antenatal glucocorticoid administration has since been proven to induce fetal lung maturation in all mammals studied, including humans (100–103). Shortly after the first randomized controlled trial (RCT) that demonstrated ACS efficacy in preventing neonatal respiratory distress syndrome (RDS) in humans, numerous research strategies aimed to identify the mechanisms underpinning glucocorticoid effects in fetal lung development. Initial studies demonstrated dexamethasone binding in both nuclear and cytosolic fractions of the fetal lung as early as 12 weeks of gestation, pointing to the capacity of the premature fetus to respond to antenatal glucocorticoid treatment (104, 105). Transgenic mouse models then confirmed an essential role of GR in fetal pulmonary development, with GR-null mice showing severe respiratory distress and atelectasis shortly after birth (106–109). Pulmonary morphology was characterized by alveolar septal hypercellularity and reduced air spaces (106–109), with corresponding upregulation of cell proliferation gene pathways (106). GR^dim transgenic mice, which carry a mutation that prevents GR dimerization and GRE-dependent transactivation, survived into adulthood without signs of impaired lung development (110). This pivotal study demonstrated that the classical GR genomic mechanism was not essential for lung development, suggesting that nonclassical GR mechanisms, such as transrepression, are required in glucocorticoid-induced lung maturation. Subsequently, tissue-specific GR knockout models demonstrated that only the mesenchymal GR knockout mice recapitulated the RDS lung phenotype observed in GR-null mice (111–113). Furthermore, acute glucocorticoid treatment, administered 48 h before delivery, was sufficient to induce fetal lung maturation in the preterm lamb, as evidenced by increased pulmonary airspace and lung compliance, without affecting surfactant production (114–116). These studies demonstrated that glucocorticoids stimulate pulmonary maturation primarily by mesenchymal-induced structural remodeling, with a secondary effect on surfactant production. Strikingly, generalized inherited glucocorticoid resistance, a rare genetic disorder caused by GR mutations that reduce GR function, does not lead to neonatal RDS (117), suggesting that the mere presence of GR, rather than its full functionality, is sufficient for perinatal lung maturation. These observations highlight the old concept of GR working as a “permissive” transcription regulator (116), currently restated as a “pioneering” factor (46), in synchrony with other transcriptional and chromatin-remodeling factors to drive context-specific biological effects. The critical role exerted by the cellular environment on GR function may explain the intrasubject variability in ACS response observed in rabbit and sheep models, where ~ 40% of preterm animals fail to show improved lung compliance and oxygenation (99, 101, 118). Such endogenous variability in ACS response may stem from interindividual differences in cell-specific chromatin states and GR-interacting transcriptional coregulator pools. Future studies are needed to elucidate the cell-specific GR-interactome in fetal lung across gestational ages pertinent to ACS therapy.

The molecular mechanisms of glucocorticoids in pulmonary development can be broadly summarized as (1) inducing structural maturation of lung tissue (2), enhancing fluid resorption (3), stimulating surfactant production, and (4) increasing the expression of antioxidant enzymes (119). Firstly, and currently considered the most important glucocorticoid effect in lung development, is the promotion of structural maturation in the lungs as shown by expansion of parenchymal air spaces and lung volume, mostly achieved by thinning of the alveolar wall mesenchyme to allow gas exchange (111–113). This effect occurs through reduced cellular proliferation and increased apoptosis of mesenchymal cells (106). Secondly, glucocorticoids enhance lung fluid resorption by stimulating type I alveolar epithelial cell expression of epithelial sodium channels and Na⁺/K⁺ ATPase (120), which allow the removal of alveolar luminal Na⁺ and water. Thirdly, glucocorticoids stimulate surfactant production by various mechanisms, including the differentiation of type II alveolar epithelial cells (121, 122), the induction of surfactant protein expression (121, 123), and increased phospholipid synthesis enzyme activity (124). Finally, glucocorticoids also protect the neonatal lung from oxidative damage caused by postnatal exposure to higher oxygen levels by increasing the activity and expression of antioxidant enzymes such as glutathione peroxidase, superoxide dismutase, and catalase (125, 126).

In addition to the beneficial effects of ACS in preventing RDS, PCS is also effective in preventing and treating BPD (11, 12), which is characterized by the expansion and activation of pro-inflammatory cells that release injurious mediators that further disrupt alveolarization and remodel the immature lung (127). Consequently, PCS treatment has been shown to downregulate proinflammatory mediators and reduce the number of neutrophils in the tracheobronchial aspirates of BPD preterm neonates, leading to earlier extubation and improved disease resolution (128).

4.2 Perinatal glucocorticoid effects on growth

Proper fetal growth is regulated by the balance of hyperplasia, hypertrophy, and differentiation processes. Disruptions of this balance can result in growth restriction or macrosomia, both of which are associated with fetal and neonatal morbidity and programming of adult disease (129, 130). In humans, normal physiological levels of cortisol stimulate fetal organ maturation without affecting growth. Indeed, GR deletion models demonstrate normal fetal growth (107, 108), suggesting that glucocorticoids are not essential for fetal cellular proliferation or hypertrophy. Conversely, prenatal exogenous administration of glucocorticoids results in IUGR in a species-, dose-, and gestational age-dependent manner in all researched mammals (116, 129, 130). Notably, single-dose ACS-induced IUGR is more pronounced in small mammals, such as rats and rabbits, compared to sheep and non-human primates, due to the shorter gestational length of rodents relative to higher mammals (116, 131). Furthermore, repetitive doses of ACS result in a more prominent IUGR than a single-dose ACS, accompanied by further acceleration of lung maturation, in both rabbits and sheep (132, 133). ACS induced symmetrical IUGR in rodents and sheep (133–136) but caused brain-sparing asymmetrical IUGR in non-human primates (137–139). Remarkably, meta-analysis studies reported no effect of ACS on human fetal growth (6), which is hypothetically attributed to the short interval between ACS exposure and birth. Supporting this theory, a longitudinal birth cohort study in term newborns revealed that a single course of ACS administered ~ 4 months before term delivery led to smaller birthweights and percentiles in ACS-treated compared to non-ACS-treated newborns (140). Postnatally, supraphysiological levels of glucocorticoids continue to inhibit growth, resulting in short stature with equivocal effects on fat mass and obesity (141).

Glucocorticoids decrease fetal growth directly by inducing fetal proteolysis and indirectly by decreasing placental weight (129, 130). Glucocorticoid effects on fetal growth are partly mediated by other hormones and growth factors, particularly insulin-like growth factors (IGFs) (129). IGFs are known to stimulate tissue growth, playing a crucial role in fetal development. Deletions or mutations of these genes significantly reduce body weight in both rodent models and humans (142, 143). Cortisol levels are negatively associated with fetal IGF expression, an effect likely caused by GR-mediated transrepression (144, 145). In addition, glucocorticoids reduce placental vascularity by downregulating vascular endothelial growth factor and prolactin (146, 147). Postnatally, glucocorticoids stunt growth from birth through adolescence by suppressing the neuroendocrine growth hormone axis (148).

4.3 Perinatal glucocorticoid effects in the brain

GR deletion in the brain does not affect brain morphology or cause fetal or early postnatal death, but it results in postnatal behavioral dysfunction (149–151). Similarly, maternal adrenalectomy does not significantly alter brain morphology but delays the differentiation and migration of neurons and overall functional maturation of brain structures such as the hippocampus (152, 153). The physiological effects of glucocorticoids in the brain are mediated by both the GR and MR (154). While GR is distributed throughout all brain regions starting at mid-gestation, MR expression is confined to the hippocampus and limbic system, particularly during late gestation, and is expressed at higher levels than GR (97, 98, 155). In addition, significant increases in both receptor densities concomitantly with reduced 11β-HSD2 and increased cortisol bioavailability occur in late gestation (97, 98, 155). Consequently, cortisol developmental effects in the near-term fetus are mediated mostly through the MR in the limbic system and through GR in other brain regions such as the choroid plexus.

Untimely or excess antenatal glucocorticoids that escape 11β-HSD2 surveillance induce deleterious effects in the fetal brain, leading to postnatal learning disabilities, attention-deficit disorders, anxiety, and depression (97, 154). These adverse effects have been shown to be mediated exclusively through GR stimulation. For instance, dexamethasone and high-dose corticosterone treatment, but not low-dose corticosterone, reduced cell proliferation in embryonic rat neural stem cells in vitro through GR activation with no participation from MR (156). Compelling evidence has established that glucocorticoid overexposure leads to decreased brain weight and inhibition of neurogenesis in the cortex, subventricular zone, and regions of the hippocampus, such as the corpus ammonis, dentate gyrus, and subgranular zone (157–159). Glucocorticoids inhibit neurogenesis primarily by decreasing proliferation and increasing apoptosis of neuronal stem cell progenitors. At the molecular level, glucocorticoids upregulate cell-cycle inhibitors and senescence markers while downregulating cell-cycle proteins such as cyclin D1 (156, 160). Downregulation of transcription factors WNT and sonic hedgehog by glucocorticoids has also been implicated in neurogenesis inhibition (161, 162). Furthermore, excessive glucocorticoids caused by repetitive ACS dosing induced deleterious structural changes, including decreased nerve myelination in the corpus callosum and delayed maturation of astrocyte tight junctions (116, 163). Unexpectedly, glucocorticoids have been shown to promote neurogenesis in vitro under certain conditions. For instance, Ninomiya et al. demonstrated that glucocorticoids stimulate the proliferation of neural progenitor cells derived from human fetal lung fibroblasts (164). Likewise, Krontira et al. found that glucocorticoids enhanced the proliferation of specific neuronal progenitor subpopulations within brain organoids derived from human skin fibroblasts and glioblastoma cells (165). They proposed that this model reflects active neurogenesis during cortical expansion in the brain and hypothesized that glucocorticoids can induce beneficial effects on neurogenesis during these earlier gestational stages (22–27 weeks). Notably, a recent meta-analysis study found that ACS treatment in extremely preterm newborns was associated with a significantly lower risk of neurodevelopmental impairments compared to those receiving ACS at later gestational ages (166).

Repeated ACS or high-dose PCS regimens have also been associated with increased risk of cerebral palsy (167, 168), partly by aggravating the vulnerability of the developing brain to hypoxia/reperfusion damage in the immature brain. The mechanisms include hypomyelination resulting from oligodendrocyte maturation inhibition and reactive astrogliosis (169). These events render the immature brain more vulnerable to free radical-, glutamate-, and cytokine-induced injury (170). Furthermore, glucocorticoids have been shown to heighten calcium signaling, disrupt glucose uptake, dysregulate mitochondrial function, and enhance glutamatergic signaling, all of which predispose neurons to metabolic insults such as hypoxia (171).

Lastly, ACS also reduces the risk of intraventricular hemorrhage (IVH) in preterm neonates (6). IVH results from immaturity of the germinal matrix substructures combined with fluctuating cerebral blood flow and coagulation disorders, primarily caused by RDS-induced hypoxemia (171, 172). Apart from the beneficial effects of glucocorticoids in preventing RDS-dependent hypoxemia, they also stabilize the germinal matrix capillary network by increasing extracellular matrix protein expression and enhancing pericyte and astrocyte end-feet coverage of vessels (173). In addition, glucocorticoids inhibit endothelial cell proliferation and downregulate vascular endothelial growth factor and angiopoietin 2, further stabilizing the germinal matrix vasculature (173, 174).

4.4 Perinatal glucocorticoid effects in the HPA axis

While neuron-specific GR deletion results in mild HPA axis dysregulation, anxiety, and depression-like symptoms (149–151), GR deficiency in both the brain and pituitary gland results in hypercortisolemia, HPA axis dysregulation, growth restriction, and neonatal death within 1–2 weeks after birth (175), highlighting the vital role of glucocorticoids in HPA axis development and regulation. In the sheep, the near-term fetal cortisol surge has been associated with pro-opiomelanocortin mRNA upregulation and ACTH release (176), although the underlying mechanisms remain unknown. Furthermore, exogenous low-dose dexamethasone treatment at earlier gestational ages—corresponding to 34–36 weeks of gestation in humans—elevated both the basal and stress-induced cortisol setpoints, leading to an enhanced response to hypoxemic stress (177). Similarly, human term newborns exposed to ACS at preterm stages exhibited a stronger HPA axis response to a heel-stick procedure (178). It is proposed that the underlying mechanism involves ACS-induced downregulation of hypothalamic and pituitary GR expression, thereby blunting the rapid negative feedback mechanism mediated by cortisol. This disruption then leads to increased and sustained cortisol secretion. In contrast, the effects of ACS in preterm newborns (< 32 weeks of gestation) appear to be opposite to those observed in late-preterm/term newborns. Indeed, ACS-exposed preterm newborns exhibited a blunted HPA axis response to various stressors applied in early postnatal days (179–181). Furthermore, it has been proposed that a switch between hypoactivity and hyperactivity occurs postnatally in preterm populations (182), which is associated with long-term increased basal cortisol levels and metabolic side effects such as obesity. Currently, the mechanisms by which ACS affects the programming of the preterm newborn’s HPA axis remain obscure, with a major obstacle being the lack of representative viable very preterm subjects in nonhuman species. Lastly, preterm newborns often present relative adrenal insufficiency that compounds the demands of critical illness, often resulting in life-threatening hypoglycemia and hypotension (183, 184). In this respect, hydrocortisone, in supplementary doses, is an effective postnatal treatment in preterm newborns < 28 weeks of gestation presenting adrenal insufficiency compounded with circulatory collapse (183, 184).

4.5 Perinatal glucocorticoid effects in the cardiovascular system

Glucocorticoids play important roles in the development and maturation of the fetal cardiovascular system, as GR-null mice have small, underdeveloped hearts with impaired function (185). Some of the mechanisms by which glucocorticoids mediate fetal heart development include the following (1): increased resting blood pressure without sustained bradycardia (2), maturation of the arterial setpoint and heightened sensitivity to stressors like hypoxia (3), cardiomyocyte maturation through hypertrophy and binucleation (4), increased left ventricular pressure, and (5) maturation of the electrical conduction system (186, 187). Early in pregnancy, fetal hypoxia induces transient bradycardia and increased peripheral vascular resistance (188). As the fetus approaches term, the glucocorticoid surge further enhances the response to hypoxia, resulting in a stronger and more sustained bradycardic response, along with increased peripheral vascular resistance (188). These maturational effects enhance oxygen extraction, maintain cardiac output, and redistribute blood flow toward vital organs such as the brain (186). Postnatally, PCS can reduce the risk of patent ductus arteriosus (189). The underlying mechanism involves increased sensitivity of the ductal tissue to oxygen-induced vasoconstriction and decreased sensitivity to the vasodilatory effect of prostaglandin E2 (190, 191). However, while glucocorticoids have beneficial physiological effects, excessive and untimely exposure to cortisol or ACS has been implicated in fetal cardiovascular programming, leading to long-term postnatal adverse effects such as hypertension, increased aortic stiffness, and endothelial dysfunction (192).

4.6 Perinatal glucocorticoid effects in other organs

The fetal gastrointestinal system responds to glucocorticoids by increasing the expression of secreted protective barrier proteins in the ileum, such as mucin2 and tight junction proteins (193). These effects are believed to contribute to the protective role of ACS against necrotizing enterocolitis (NEC) in preterm newborns (6). The molecular mechanisms mediating these effects involve the upregulation of surfactant protein D in the ileum, which in turn stimulates the expression of tight junction proteins such as occludin and zonula occludens-1 (193). Additional developmental changes include the increased expression and activity of digestive enzymes, along with structural maturation necessary for increased nutrient absorption (192, 193). Conversely, PCS has been associated with gastrointestinal perforation, a rare but potentially life-threatening condition (11, 194). One potential mechanism involves the downregulation of prostaglandin E2, which disrupts gastrointestinal integrity by decreasing mucus and bicarbonate secretion and reducing blood flow (194).

The fetal liver is also sensitive to the developmental effects of glucocorticoids. Indeed, hepatocyte-GR null mice display dysregulated glucose metabolism and decreased gluconeogenesis, with 50% neonatal mortality occurring within 48 h of birth (195). However, excessive glucocorticoid exposure could be detrimental to fetal liver development. For instance, prolonged exposure to dexamethasone during fetal development inhibits liver cell proliferation, leading to abnormal growth and dysplasia in rats (196).

Renal maturational effects stimulated by glucocorticoids include a decreased sodium fractional excretion rate, an increased glomerular filtration rate, and accelerated development of the renin–angiotensin system (197). These effects prepare the fetus for proper postnatal regulation of blood pressure, volume, and mineral homeostasis. Interestingly, GR deletion in the distal nephron does not impair kidney development or function (198), suggesting that cortisol may stimulate renal maturation partly through MR. In contrast, glucocorticoid excess—particularly early in gestation—is associated with reduced nephrogenesis and altered renin–angiotensin axis function (199, 200), and is hypothesized to contribute to the glucocorticoid programming of adult renal and cardiovascular disease.

In the immune system, glucocorticoids have profound and time-sensitive developmental effects (201). During early to mid-gestation, GR is downregulated in hematopoietic tissues such as the liver and thymus, with a concomitant increase in liver 11β-HSD2 expression (97, 98), thereby reducing cortisol bioavailability and its downstream effects. Exposure to excess glucocorticoids during these gestational ages has been shown to impact the migration, proliferation, and differentiation of hematopoietic cell lineages (201). For instance, betamethasone treatment of human fetal liver cells isolated at 7–12 weeks of gestation significantly decreased proliferation of hematopoietic stem cells in a dose-dependent manner (202). Similarly, dexamethasone treatment of mouse fetal liver explants significantly promoted the differentiation of immature hematopoietic cells into myeloid cells at the expense of lymphoid cells, particularly B lymphocytes (203). This observation may explain the reduced B-cell humoral response to vaccination observed in neonates—both preterm and term—exposed to ACS or excess cortisol due to maternal stress (204, 205). In late gestation, however, glucocorticoids have essential physiological effects on thymus development, as well as on thymocyte selection and differentiation. In this respect, GR levels are elevated in the mouse thymus during mid- to late gestation (98), and thymic epithelial cells are known to locally produce glucocorticoids—underscoring the importance of glucocorticoid-GR signaling in the thymus during this late gestational window (206). Remarkably, both GR deletion and excess glucocorticoid exposure result in reduced thymic volume and thymocyte number, although these two conditions induce different immune phenotypes (207–209). Firstly, GR deletion or reduced glucocorticoid bioavailability promotes apoptosis of double-positive thymocytes, leading to a limited repertoire of T cells that are hyporesponsive to antigens and TCR-mediated apoptosis (210–212). In contrast, excess glucocorticoids deplete both double-negative and double-positive thymocytes, leading to accelerated repopulation and selection of immature precursors that are potentially autoreactive, possibly contributing to increased risk of autoimmune diseases later in life (208). Furthermore, glucocorticoid excess also promotes CD4⁺ T helper 2 cell polarization (201), which may explain the higher rates of atopic diseases in neonates exposed to ACS or maternal stress (213, 214).

5 Endogenous determinants of perinatal glucocorticoid sensitivity

Fetuses and neonates are not exempt from dysregulation of glucocorticoid sensitivity, primarily driven by intrauterine environmental cues. Perinatal exposure to supraphysiological glucocorticoid levels can disrupt normal developmental trajectories, potentially leading to postnatal diseases that often manifest in adulthood. Indeed, human and animal studies on the developmental origins of health and disease (DoHAD) have convincingly demonstrated that adverse intrauterine environments can lead to adult disease (215, 216). While DoHAD mechanisms are complex, earlier research suggested that intrauterine stressors increase fetal/placental cortisol bioavailability and program both the HPA axis and tissue GR homeostasis, thereby altering the offspring’s response to a postnatal stressor—an effect known as the “cortisol hypothesis”. Nevertheless, significant variability in dysregulation of glucocorticoid sensitivity has been observed in subjects exposed to similar intrauterine stressors. Researchers propose that differences in the timing and intensity of the stressor, along with genetic factors, contribute to this variability. Notably, much less is known about the short-term consequences of glucocorticoid homeostasis dysregulation in preterm neonates. In this section, we review human observational studies on the genetic, physiological, and disease-related determinants of perinatal glucocorticoid sensitivity (Figure 4). We also include in vivo and in vitro research that confirms human observations and explains the underlying molecular mechanisms. In this context, it is important to emphasize key limitations of the evidence presented below. First, observational studies on preterm newborns are confounded by multiple genetic and demographic variables, as well as known and unknown intrauterine stressors, including preterm birth itself. As a result, isolating the role of individual determinants of glucocorticoid sensitivity in preterm newborns is challenging. Second, most fetal and neonatal tissues of interest—such as the lung and brain—are inaccessible for functional assays. Third, the use of surrogate tissues such as PBMCs or placenta has not been thoroughly validated, limiting the ability to extrapolate findings to key organs like the lungs. Therefore, the discussion below should be interpreted with these limitations in mind.

Figure 4

Figure 4. Endogenous determinants of glucocorticoid sensitivity in the preterm neonate. The NR3C1 Bcl1 variant is associated with an increased risk of BPD, while CYP3A, GSTP1, IPO13, and ABCB1 variants, involved in betamethasone metabolism and transport, are linked to a reduced risk of RDS. Physiological factors such as gestational age, fetal sex, and maternal BMI moderately alter HPA axis reactivity, tissue glucocorticoid bioavailability, and receptor homeostasis in the fetus and neonate. Importantly, perinatal complications such as IUGR amplify the effects of gestational age and fetal sex on perinatal glucocorticoid sensitivity. IUGR is associated with increased cortisol bioavailability without concurrent increases in lung maturation, suggesting tissue-specific resistance to cortisol. Diabetes is associated with reduced glucocorticoid sensitivity in adults, as well as in a preterm diabetic sheep model. Chorioamnionitis remains the only perinatal complication associated with increased perinatal glucocorticoid sensitivity, demonstrating concomitant increases in fetal cortisol bioavailability and lung maturation. In contrast, neonatal sepsis results in a blunted HPA axis and either high or low cortisol levels. Particularly, high cortisol levels were associated with circulatory collapse and death in preterm newborns, suggesting cardiovascular resistance to cortisol. Lastly, pulmonary and immune cell GR expression was reduced in severe RDS, though normal at birth, suggesting that GR downregulation plays a role in the progression of this disease. Ultimately, the interaction between these factors collectively modulates the glucocorticoid homeostasis in preterm neonates, influencing their vulnerability to morbidity.

5.1 Genetic determinants of perinatal glucocorticoid sensitivity

The association between common NR3C1 gene variants and neonatal morbidity has been explored (Table 1). No correlation was found between the ER22/23K and N363S variants, which are associated with decreased and increased glucocorticoid sensitivity in adults, respectively, and neonatal morbidities (217–221). However, the N363S variant was associated with a reduced need for PCS, suggesting a protective effect (220). In contrast, findings on the association of the BclI variant with neonatal outcomes remain inconclusive. For instance, Bertalan et al. found no significant association between the BclI variant and neonatal morbidity (217), whereas Schreiner et al. reported an increased risk of BPD in BclI carriers (218). Remarkably, this effect was independent of other factors, although it had a smaller contribution to BPD risk than mechanical ventilation, gestational age, and SGA status (218). Furthermore, Haas et al. reported that maternal, but not neonatal, BclI variant is associated with reduced risk of neonatal RDS (222). Overall, the role of these variants in neonatal disease and potential underlying mechanisms remains poorly defined.

Table 1

Table 1. Original human studies on the genetic determinants of perinatal glucocorticoid sensitivity.

In contrast to the NR3C1 variants, polymorphisms in genes involved in glucocorticoid pharmacokinetics have demonstrated stronger associations with neonatal disease (Table 1). For instance, maternal CYP3A5 variants, known to enhance CYP3A5 activity, were independently associated with an increased risk of RDS (223). Similarly, the fetal CYP3A7*1E variant, known to upregulate CYP3A expression, was also independently associated with an increased risk of RDS (223). Since CYP3A is the primary metabolizing enzyme of betamethasone, these polymorphisms likely accelerate maternal and fetal betamethasone inactivation, reducing its efficacy. In addition, maternal polymorphisms in the ABCB1 gene, which encodes the efflux transporter P-glycoprotein, were associated with a reduced need for respiratory support (223). This effect may result from decreased pump activity in carriers of this variant (224), leading to increased betamethasone bioavailability. Interestingly, variants in the importin 13 (IPO13) gene exhibit opposing effects on neonatal outcomes depending on the carrier. In neonates, these variants reduce the risk of BPD, whereas in mothers, they increase the risk of surfactant use (223). Since importin 13 facilitates GR nuclear translocation, fetal IPO13 polymorphisms may enhance glucocorticoid sensitivity and ACS efficacy by increasing GR nuclear presence. This aligns with previous findings showing that IPO13 variants improve outcomes in asthmatic children receiving steroid treatment (225, 226). Neonates carrying the adenylate cyclase 9 (ADCY9) I772M variant have also shown reduced RDS risk (223). This variant has been linked to increased steroid response in asthmatics, although the protective mechanisms remain unclear (227). Finally, neonatal carriers of the glutathione S-transferase pi 1 (GSTP1) I105V polymorphism also exhibit a reduced risk of RDS (228). This variant decreases GST conjugating activity (229), potentially leading to reduced betamethasone conjugation and, thus, increased betamethasone bioavailability. However, this same variant is a risk factor for BPD, potentially due to reduced GSTP1-mediated protection against oxidative stress damage in the lungs (230).

5.2 Physiological determinants of perinatal glucocorticoid sensitivity

Gestational age is perhaps the most important determinant of fetal glucocorticoid sensitivity (Table 2). For example, extremely premature newborns (22–27 weeks of gestation) demonstrate a reduced risk of ACS-mediated neurodevelopmental impairment, while late preterm newborns (> 34 weeks of gestation) show the opposite effect (166). Similarly, ACS effects on HPA axis reactivity differ between preterm and term newborns: preterm newborns exhibit blunted HPA axis reactivity, whereas term newborns display heightened reactivity (178–181). Moreover, a recent study found significant differences in NR3C1 methylation of promoter 1F, with extremely premature newborns showing higher methylation at birth, followed by decreased methylation at subsequent timepoints, compared to term newborns (231). Although the mechanisms remain uncertain, it is hypothesized that the term HPA axis is more susceptible to glucocorticoid-mediated downregulation of central GR expression, leading to impaired negative feedback regulation. Furthermore, in vivo studies suggest that gestational age modulates the maturational effects of ACS in the fetal lung (116). Interestingly, dexamethasone binding assays in autopsied fetal lung tissue have demonstrated relatively stable GR expression throughout gestation (104, 105). Additionally, GR protein levels were higher in lung homogenates from 15- to 28-week fetuses compared to infants and children (232). Concurrently, GRα mRNA expression in human fetal lung sections from subjects without apparent pulmonary disease remained consistent between 13 and 42 weeks of gestation but was higher than that of adults (233). Altogether, these findings suggest that gestational age does not significantly influence total pulmonary GR expression, although GR isoform expression patterns remain understudied. Parallel to the above findings, in vitro GR functional studies, using cord blood mononuclear cells (CBMCs), revealed that both preterm and term neonates display greater glucocorticoid sensitivity than children and adults (234–236). However, preterm newborns demonstrated lower endotoxin response and reduced basal dexamethasone sensitivity in IL-6 and IL-1β transrepression compared to healthy term newborns (235). Notably, the increased neonatal CBMC glucocorticoid sensitivity relative to adults was not attributed to differences in total GR levels or affinity (237–240). Lastly, a study on placental GR isoforms revealed that preterm newborns express higher GRα-C protein levels compared to term newborns (241). Alterations in placental GR expression were observed together with decreased placental 11β-HSD2 expression in preterm compared to term neonates (242). These data suggest increased placental glucocorticoid sensitivity in preterm compared to term neonates.

Table 2

Table 2. Original human studies on the physiological determinants of perinatal glucocorticoid sensitivity.

Fetal sex has been shown to play a role in regulating the HPA axis and tissue GR homeostasis in healthy term neonates (Table 2). For instance, male subjects showed a positive association between cortisol levels and placental GRβ protein, along with higher placental GR1A3 mRNA compared to females (243, 244). The GR1A3 transcript isoform is predominantly expressed in immune cells, suggesting differential regulation of placental leukocyte-GR expression in male compared to female subjects. Furthermore, the correlation between placental GRβ protein expression and fetal cortisol levels suggests that male subjects are more sensitive to cortisol-mediated GRβ regulation than female subjects. Sexual dimorphism was accentuated in the presence of a stressor, such as maternal asthma. For instance, moderate to severe maternal asthma was associated with reduced birthweights in term female neonates only, together with higher fetal cortisol levels and decreased placental 11β-HSD2 and GRβ expression (244–246). Similarly, maternal psychosocial stress was linked to decreased placental 11β-HSD2 and GRα expression in term female subjects only (247). Prematurity is another important stressor that amplifies sexual dimorphism in perinatal glucocorticoid sensitivity. An earlier study found lower RDS rates in ACS-exposed preterm female compared to male subjects matched for birth weight (248). This sexual dimorphism was confirmed in ovine models, with preterm female lambs showing improved respiratory outcomes compared to male subjects (249), although the underlying mechanisms remain elusive. Prematurity and fetal sex also interacted in the regulation of placental GR expression, with preterm males expressing higher GRα-D2 protein levels than preterm female subjects (241). Moreover, an interaction between prematurity, birthweight, and fetal sex was observed: in preterm female subjects, placental GRα-D1 and GRα-D2 protein levels were lower in small-for-gestational-age (SGA) compared to average-for-gestational-age (AGA) neonates, with no effect of birthweight in preterm male subjects (241). Interestingly, no sexual dimorphism in GR transcript variants was found in CBMCs from preterm/term neonates (237–240, 250), further emphasizing glucocorticoid tissue-specific effects. Similarly, there were no differences in HPA gene methylation in very preterm newborns at birth; yet after development of BPD, male neonates presented 10 differentially methylated sites in four genes—including NR3C1—with ACS exposure compared with female neonates (251). Altogether, these findings suggest that intrauterine stressors elicit sexually dimorphic adaptations in glucocorticoid sensitivity in key tissues such as the placenta, with female neonates showing upregulation of highly sensitive GR isoforms, potentially leading to increased sensitivity to glucocorticoid-mediated growth inhibition.

DoHAD animal studies have demonstrated a causal regulatory effect of maternal nutrition on the fetal/neonatal HPA axis and tissue glucocorticoid sensitivity (252). In contrast, human studies have been restricted to the association between maternal BMI, as a proxy for nutritional status, and neonatal glucocorticoid sensitivity (253) (Table 2). In this respect, underweight mothers with a BMI < 18 kg/m² are at risk of presenting IUGR, whereas mothers with a BMI > 30 kg/m² are at risk of macrosomia and gestational diabetes (252). Importantly, these pregnancy complications encompass a range of pathologies with different etiologies; thus, their role in perinatal glucocorticoid sensitivity will be discussed in the sections below. Increased interest in the role of maternal obesity in maternal–neonatal outcomes has sparked research into uncomplicated pregnancies across various maternal BMI ranges. Maternal obesity, which complicates ~ 40% of all pregnancies in the USA, has been associated with reduced placental 11β-HSD2 activity, with no effect on cord blood cortisol levels (254, 255). Furthermore, severely obese pregnant women exhibited reduced cortisol levels compared to healthy controls (256, 257), suggesting a role for decreased cortisol bioavailability in maternal obesity-induced fetal macrosomia (258). In addition, research on human umbilical vein endothelial cells (HUVEC) found a positive association between maternal BMI and GR expression, as well as in vitro dexamethasone sensitivity (259). The effect of maternal obesity on fetal endothelial GR expression was confirmed in a diet-induced maternal obesity ovine model (260), which also showed GR upregulation in the fetal heart (261). Increased HUVEC-GR expression was primarily due to reduced GR proteasomal degradation (259). Furthermore, differential NR3C1 gene methylation at nondominant promoters 1D and 1F was associated with glucocorticoid sensitivity (262), highlighting the important role of maternal obesity in the epigenetic remodeling of fetal tissues.

Finally, fetal circulating cortisol levels and ACS exposure were not associated with CBMC-, placenta-, or HUVEC-GR expression in neonates (Table 2). Furthermore, ACS exposure did not affect cord blood CD4⁺ T-cell methylation levels of the NR3C1 promoter or GR 5′UTR mRNA isoform levels in late-preterm neonates (263). Similarly, ACS exposure did not affect methylation status of HPA genes—including NR3C1—at birth, but significantly altered 10 CpG sites at discharge time (251). Finally, a microarray study on ACS transcriptional profiles in preterm neonatal PBMCs identified only 13 differentially expressed genes in samples from postnatal day 5, and just one differentially expressed gene in samples collected at postnatal day 28 (264). Overall, these studies suggest that ACS exposure has a minor and transient effect on GR expression and function in most fetal/neonatal tissues studied to date. This uncoupling of circulating glucocorticoid levels from tissue GR expression contrasts with the well-known in vitro effects of glucocorticoids in downregulating their own receptor (20, 62). It can be proposed that multiple redundant mechanisms of tissue GR regulation maintain a relatively stable expression and function in vivo under mild-to-moderate stress. As discussed in the following paragraphs, perinatal complications can further dysregulate glucocorticoid homeostasis.

5.3 Disease-specific determinants of perinatal glucocorticoid sensitivity

Multiple perinatal complications have been associated with fetal/neonatal dysregulation of the HPA axis, cortisol metabolism, and tissue GR expression and function (Table 3). Furthermore, there is concern regarding the proper use of ACS in special populations, such as those with IUGR, maternal diabetes, and chorioamnionitis, due to their independent contributions to neonatal morbidity and their potential to decrease the therapeutic index of ACS (265, 266). Currently, it remains unclear whether intrauterine stressors affect fetal predisposition to prematurity-related diseases via unchecked inflammatory signaling, dysregulated glucocorticoid sensitivity, or a combination of both. Notably, conflicting and inconsistent results have been observed, possibly due to the limited analysis of only a few glucocorticoid-related parameters in a heterogeneous population of preterm newborns. In this subsection, we summarize and discuss original research studies that illustrate the role of key perinatal complications on fetal/neonatal glucocorticoid homeostasis. Insights from pediatric and adult studies, as well as animal and in vitro research, are included to broaden understanding of concepts and mechanisms, with careful consideration of the limitations previously mentioned.

Table 3

Table 3. Original human studies on the disease-related determinants of perinatal glucocorticoid sensitivity.

5.3.1 IUGR

Fetal glucocorticoid homeostasis dysregulation in IUGR is caused by the intrauterine stress of nutrient and oxygen insufficiency (267, 268). While supraphysiological cortisol levels alone can induce IUGR, as discussed in Section 4, increased fetal cortisol bioavailability is considered a consequence rather than a cause in the most common type of IUGR, which is characterized by late-onset placental insufficiency with brain-sparing effects (267, 268). However, interindividual variability in IUGR-associated glucocorticoid dysregulation is evident (Table 3). Importantly, most human studies define IUGR as birth weight < 10th percentile, also known as SGA. However, IUGR is better defined as the pathological counterpart of SGA, diagnosed by ultrasonographic assessment of estimated fetal weight < 10th percentile, in conjunction with abnormal umbilical artery Doppler velocimetry (268). Both IUGR and SGA have been associated with either higher or lower umbilical cord blood cortisol levels (145, 269–274). Interestingly, fetal cortisol levels in IUGR appear to be regulated in a gestational age-dependent manner. Preterm IUGR neonates exhibit higher cord blood cortisol levels than gestational age-matched AGA controls (269–271), while term IUGR neonates show the opposite effect (145, 273, 274). These discrepancies may be explained by gestational age-dependent differences in IUGR etiologies, placental development, and fetal HPA axis maturation (268, 275). Despite conflicting reports on cord blood cortisol levels, it is assumed that the IUGR fetus is exposed to supraphysiological cortisol levels, although the timing, degree, and duration of this exposure may vary (268, 275). Excess fetal glucocorticoid exposure, in turn, alters normal key organ developmental trajectories. Indeed, both preterm and term IUGR neonates have shown blunted HPA axis reactivity, demonstrating intrauterine stress-dependent glucocorticoid programming (276, 277). Furthermore, both preterm and term infants exhibit decreased activity and expression of the placental physiological barrier 11β-HSD2 (278–281), consistent with the proposed increased cortisol bioavailability. Interestingly, a stronger discrepancy in placental 11β-HSD2 expression between IUGR and AGA controls was observed in term neonates compared to very preterm neonates (278, 280), highlighting the interaction of gestational age with the fetal response to placental insufficiency. Decreased placental 11β-HSD2 expression and activity were not due to mutations or imprinting (281) but are proposed to be mediated by promoter hypermethylation (282). Much less is known about IUGR-mediated dysregulation of fetal tissue GR physiology. Preterm, but not term, SGA newborns exhibited increased GRβ mRNA levels in cord blood (239), although this finding was not confirmed in a separate study using CBMCs (240). However, another study found that term SGA newborns had higher placental GRβ protein levels than gestational age-matched controls (244). Furthermore, preterm SGA placentas displayed lower P-glycoprotein expression compared to gestational age-matched samples, suggesting higher glucocorticoid bioavailability in a fetal sex-independent manner (283). Finally, two studies demonstrated sexual dimorphism in IUGR-specific GR expression regulation. Saif et al. found decreased placental expression of the less sensitive GR isoforms GRα-D1 and GRα-D2 in preterm female SGA compared to female AGA, with no differences observed in preterm male samples (241). Hutter et al. found increased placental GRα protein levels in female samples and GRβ protein levels in male samples within the preterm IUGR cohort (284). These studies suggest that IUGR female samples exhibit higher glucocorticoid sensitivity due to expression of more sensitive GR protein isoforms.

Animal models of IUGR have confirmed dysregulation of glucocorticoid homeostasis due to placental insufficiency in a tissue- and time-dependent manner. Indeed, in vivo research has demonstrated downregulation of fetal brain drug transporters in term IUGR, suggesting increased brain-specific bioavailability that may explain the adverse neurodevelopmental outcomes observed in IUGR subjects exposed to ACS (285). Furthermore, worse pulmonary outcomes have been observed in IUGR models, although these findings depend on the type of stressor and timing of treatments relative to birth (285). For instance, uteroplacental embolization between 109 and 130 days, but not between 120 and 140 days, increased surfactant protein levels in near-term lambs (286, 287), although both IUGR models showed fetal pulmonary structural immaturity despite elevated fetal cortisol levels. In addition, a different IUGR model of placental restriction, induced by pre-pregnancy carunclectomy, showed an inverse relationship between fetal hypercortisolemia and pulmonary surfactant protein expression at late-preterm gestational ages (288). Finally, in a very preterm IUGR model, single uterine artery ligation resulted in increased fetal cortisol levels without maturational pulmonary effects (289). However, in this same model, ACS exposure unexpectedly increased fetal surfactant protein expression and decreased pulmonary cell proliferation without affecting pulmonary septation in both control and IUGR animals, suggesting a partial beneficial effect of ACS (289). Remarkably, ACS further inhibited growth in this model, suggesting an additive effect of betamethasone and cortisol. Overall, in vivo research clearly demonstrates that placental insufficiency leads to fetal cortisol overexposure, resulting in growth restriction without accompanying pulmonary maturation, indicating tissue-specific cortisol resistance in the lung.

5.3.2 Maternal diabetes

Significant glucocorticoid homeostasis dysregulation has been observed in adult diabetic populations. For instance, both types I and II diabetes mellitus (T1/T2DM) have been associated with elevated cortisol levels and HPA axis hyperactivity (290, 291). Similarly, higher maternal cortisol levels have been reported in gestational diabetes patients compared to healthy controls (292, 293). This diabetes-induced subclinical hypercortisolism is thought to result from decreased hippocampal regulation of the HPA axis due to hyperglycemia-induced atrophy within this region (290). In addition, adult diabetic cohort studies have shown a reduced PBMC GRα/GRβ mRNA ratio and decreased phosphorylation of GR at S211, suggesting impaired immune cell–glucocorticoid sensitivity (294). Currently, the impact of maternal diabetes on human fetal/neonatal glucocorticoid sensitivity remains unknown. However, in vivo and ex vivo research suggest that maternal diabetes may potentially dysregulate fetal glucocorticoid sensitivity. For example, a sheep model of gestational diabetes demonstrated reduced surfactant protein production and expression of GR/11β-HSD1 in the fetal lung (295). Furthermore, insulin abolished glucocorticoid stimulation of surfactant production in co-cultures of rat lung fibroblasts and epithelial cells (296). These studies suggest an important role of maternal diabetes in reducing fetal/neonatal glucocorticoid sensitivity.

5.3.3 Intrauterine infection

Increased cord blood and amniotic fluid cortisol levels have been reported in both preterm and term pregnancies complicated by chorioamnionitis (297, 298). Decreased 11β-HSD2 and increased 11β-HSD1 expression were found in placental and amniotic tissue of human pregnancies with intrauterine infection (299, 300). Additionally, ex vivo exposure of amniotic fibroblasts to cortisol, endotoxin, or both led to increased 11β-HSD1 expression (300). These findings suggest that intrauterine infection augments fetal cortisol bioavailability, potentially accelerating pulmonary maturation. Indeed, several clinical studies have reported a reduced risk of RDS in preterm newborns exposed to intrauterine infection (301–303). However, other studies have found no benefit—or even an increased risk—of RDS in neonates exposed to chorioamnionitis (304, 305). These conflicting results may be explained by the severity of infection: low-grade infection may prime the fetal lung for glucocorticoid action, while high-grade infection may antagonize glucocorticoid effects via increased systemic and pulmonary inflammation (306). Animal models have confirmed a causal relationship between intrauterine infection and fetal lung maturation (307–309). Interestingly, in sheep, endotoxin-induced lung maturational effects occurred without concomitant increases in fetal cortisol levels, suggesting alternative cortisol-independent mechanisms yet to be identified (307). Furthermore, endotoxin and betamethasone exhibited additive effects on lung maturation, with transcriptomic analysis revealing distinct gene regulation patterns between the two (308). While both treatments promoted mesenchymal thinning via cell death, endotoxin uniquely suppressed the expression of elastic fibers and induced chronic inflammatory stress, possibly disrupting lung maturation in the long term (308). These observations partly explain the paradox wherein chorioamnionitis reduces RDS risk but increases the risk of BPD (310, 311). Finally, the impact of chorioamnionitis on human perinatal tissue glucocorticoid sensitivity and GR expression remains an area of limited exploration. However, one report on preterm chorioamnionitis showed no difference in total GR or GRα protein levels, independent of ACS exposure (299).

5.3.4 Neonatal sepsis

Similar to adult and pediatric sepsis, neonatal sepsis has been associated with glucocorticoid homeostasis dysregulation, manifested as either hypo- or hypercortisolism. Longitudinal studies in adults with sepsis have shown that glucocorticoid dysregulation begins with an initial rise in free cortisol, decreased hepatic CBG production, and ACTH–cortisol dissociation during the acute phase (312, 313). This is followed by adrenal insufficiency, characterized by decreased cortisol levels, suppression of the HPA axis, and reduced tissue glucocorticoid sensitivity in the subacute/chronic phase (312, 313). Notably, worse outcomes have been observed in sepsis patients with the highest initial elevation in free cortisol (314, 315). Findings on cortisol regulation in neonatal sepsis, however, remain inconclusive. While three independent studies reported very low cortisol levels (< 15 µg/dL) in most septic neonates (316–318), Kumar et al. reported significant variability, with ~ 50% of neonates presenting with low cortisol levels and the remainder showing elevated levels (319). Similar to adults, septic neonates with higher cortisol levels exhibited increased mortality (319). The association of hypercortisolemia with mortality in critically ill neonates was confirmed in a separate, larger study (320). Furthermore, another study found increased basal cortisol levels in the preterm septic neonates compared to controls, together with significant HPA axis dysfunction and an inverse relationship between blood pressure and cortisol levels, suggesting cardiovascular tissue glucocorticoid resistance (321). Moreover, a blunted cortisol synthesis pathway and impaired HPA axis response to ACTH have been observed in both preterm and term neonates with sepsis (316–318). It is important to note that preterm response to sepsis is further complicated by HPA axis immaturity. Therefore, while the onset of sepsis may induce an elevation of cortisol levels in adults, this response might be limited in neonates due to developmental constraints. Although tissue-specific GR physiology has not been studied in human neonatal sepsis, research in adults has shown reduced glucocorticoid sensitivity due to decreased GRα and increased GRβ expression in peripheral blood and liver (322). Moreover, decreased PBMC GR expression correlated with mortality in adult and pediatric sepsis (323, 324), highlighting the critical role of tissue glucocorticoid homeostasis in sepsis outcomes. Indeed, murine sepsis models further demonstrate that GR deletions in hepatic or endothelial cell lineages exacerbate inflammation and reduce survival (322, 325), underscoring the importance of tissue GR function in sepsis.

5.3.5 Neonatal RDS

Reduced fetal/neonatal GR levels have been observed in neonatal pulmonary complications, particularly in RDS. In this context, Ballard and Ballard reported undetectable GR levels in autopsied lung samples from neonates with RDS (104). Later, Kerepesi and Arányi confirmed these findings, showing decreased dexamethasone-binding levels in preterm newborns with RDS compared to those with other morbidities, such as bronchopneumonia. Notably, they used PBMCs as a surrogate tissue for the lung (237), where GR levels correlated with RDS severity. In contrast, studies using CBMCs, collected prior to RDS development, did not reveal differences in GR number estimated by ligand-binding assays (238) or real-time PCR (239, 240) between RDS neonates and gestational age-matched controls. Only one study found a significant association between reduced GRα mRNA levels in umbilical cord CD14⁺ monocytes and later development of RDS (326), suggesting that this immune cell type is more sensitive to glucocorticoid dysregulation before RDS onset. These findings suggest that GR expression downregulation does not precede but rather occurs as a result of severe RDS, since decreased GR levels were not evident at birth. Similarly, reduced pulmonary and immune cell GR levels have been observed in critically ill pediatric and adult populations (327), although the mechanisms responsible for GR downregulation remain unknown.

6 Conclusions

It is well accepted that preterm fetuses and neonates are particularly vulnerable to intrauterine stressors, leading to dysregulation of cortisol metabolism, the HPA axis, and tissue GR. However, uncovering the specific stressors and determinants of glucocorticoid sensitivity that impact neonatal health remains challenging, likely due to confounding factors that hinder the interpretation of observational studies. Nevertheless, this review highlights research that, either deliberately or inadvertently, has revealed key determinants of perinatal glucocorticoid sensitivity. First, gene polymorphisms in drug-metabolizing enzymes and transporters have been associated with neonatal disease, suggesting that genetic factors influence synthetic glucocorticoid bioavailability. Second, lung tissue and immune cells were shown to express functional GRs that are unaffected by gestational age, fetal sex, or ACS exposure, suggesting that GR deficiency may not be a major determinant of glucocorticoid sensitivity in preterm fetuses. In contrast, the placenta has emerged as a more sensitive tissue to glucocorticoid dysregulation, influenced by gestational age, fetal sex, maternal BMI, and disease. This sensitivity may be explained by the essential role of the placenta in coordinating endocrine, growth, and metabolic functions in response to intrauterine environmental cues. Future research is needed to unveil the mechanisms and determinants of perinatal glucocorticoid sensitivity in additional, unexplored tissues such as umbilical artery endothelial, smooth muscle, and mesenchymal cells. Third, perinatal complications such as IUGR, chorioamnionitis, neonatal sepsis, and RDS have been associated with significant dysregulation of fetal/neonatal glucocorticoid homeostasis. Specifically, IUGR was associated with blunted HPA axis reactivity and increased cortisol bioavailability in preterm newborns, with further sexual dimorphism observed in placental GR isoform expression, where females exhibited increased expression of sensitive GR isoforms. Importantly, in vivo models of IUGR and gestational diabetes demonstrated reduced cortisol-mediated effects in the fetal lung, suggesting decreased pulmonary sensitivity to cortisol. Similar to IUGR, neonatal sepsis was also associated with blunted HPA axis reactivity in preterm newborns. Furthermore, higher cortisol levels in preterm newborns with sepsis are associated with circulatory collapse and death, suggesting decreased vascular sensitivity to cortisol. Severe neonatal RDS is associated with reduced pulmonary and CBMC expression of GR, indicating significant dysregulation of this receptor during the progression of the disease. In contrast, and uniquely, chorioamnionitis was significantly associated with increased glucocorticoid sensitivity in both animals and humans, although this effect may depend on the severity of the disease. Altogether, preterm birth and associated intrauterine stressors significantly impact perinatal glucocorticoid homeostasis, which can influence clinical outcomes and responses to both endogenous and synthetic glucocorticoids. Finally, we emphasize a critical knowledge gap regarding the role of the tissue environment as a modifier of glucocorticoid sensitivity and stress the need for integrated omics approaches to uncover tissue-specific epigenetic modifications associated with perinatal disease and clinical response to glucocorticoids. Such studies could advance our understanding of the molecular mechanisms underlying GR homeostasis dysregulation in various pregnancy disorders and lead to novel strategies to prevent or reverse these molecular changes, ultimately paving the way for optimized perinatal glucocorticoid therapies in the era of precision medicine.

Author contributions

NA: Formal Analysis, Investigation, Writing – original draft, Writing – review & editing, Software. CG: Writing – original draft, Writing – review & editing, Validation. DD: Writing – original draft, Writing – review & editing, Validation. OA: Writing – original draft, Writing – review & editing, Funding acquisition. LZ: Funding acquisition, Writing – original draft, Writing – review & editing. EM-G: Funding acquisition, Writing – original draft, Writing – review & editing, Conceptualization, Formal Analysis, Investigation, Supervision.

Funding

The author(s) declare that financial support was received for the research and/or publication of this article. This review was supported by intramural GRASP award 2190268 from LLU.

Acknowledgments

The figures presented herein were created using Biorender.com.

Conflict of interest

The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.

Generative AI statement

The author(s) declare that no Generative AI was used in the creation of this manuscript.

Publisher’s note

All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article, or claim that may be made by its manufacturer, is not guaranteed or endorsed by the publisher.

References

1. Cain DW and Cidlowski JA. Specificity and sensitivity of glucocorticoid signaling in health and disease. Best Pract Res Clin Endocrinol Metab. (2015) 29:545–56. doi: 10.1016/j.beem.2015.04.007

PubMed Abstract | Crossref Full Text | Google Scholar

2. Caratti G, Matthews L, Poolman T, Kershaw S, Baxter M, and Ray D. Glucocorticoid receptor function in health and disease. Clin Endocrinol. (2015) 83:441–8. doi: 10.1111/cen.12728

PubMed Abstract | Crossref Full Text | Google Scholar

3. Sapolsky RM, Romero LM, and Munck AU. How Do glucocorticoids influence stress responses? Integrating permissive, suppressive, stimulatory, and preparative actions. Endocr Rev. (2000) 21:55–89. doi: 10.1210/edrv.21.1.0389

PubMed Abstract | Crossref Full Text | Google Scholar

4. Busada JT and Cidlowski JA. Mechanisms of glucocorticoid action during development. Curr Top Dev Biol. (2017) 125:147–70. doi: 10.1016/bs.ctdb.2016.12.004

PubMed Abstract | Crossref Full Text | Google Scholar

5. Kemp MW, Newnham JP, Challis JG, Jobe AH, and Stock SJ. The clinical use of corticosteroids in pregnancy. Hum Reprod Update. (2016) 22:240–59. doi: 10.1093/humupd/dmv047

PubMed Abstract | Crossref Full Text | Google Scholar

6. McGoldrick E, Stewart F, Parker R, and Dalziel SR. Antenatal corticosteroids for accelerating fetal lung maturation for women at risk of preterm birth. Cochrane Database Syst Rev. (2020) 12:CD004454. doi: 10.1002/14651858.CD004454.pub4

PubMed Abstract | Crossref Full Text | Google Scholar

7. ACOG's Committee on Obstetric Practice. Committee Opinion No. 713: Antenatal corticosteroid therapy for fetal maturation. Obstet Gynecol. (2017) 130:e102–9. doi: 10.1097/AOG.0000000000002237

PubMed Abstract | Crossref Full Text | Google Scholar

8. Stoll BJ, Hansen NI, Bell EF, Shankaran S, Laptook AR, Walsh MC, et al. Neonatal outcomes of extremely preterm infants from the NICHD Neonatal Research Network. Pediatrics. (2010) 126:443–56. doi: 10.1542/peds.2009-2959

PubMed Abstract | Crossref Full Text | Google Scholar

9. Skoll A, Boutin A, Bujold E, Burrows J, Crane J, Geary M, et al. Antenatal corticosteroid therapy for improving neonatal outcomes. J Obstet Gynaecol Can. (2018) 40:1219–39. doi: 10.1016/j.jogc.2018.04.018

PubMed Abstract | Crossref Full Text | Google Scholar

10. National Institute for Health and Care Excellence. Preterm labor and birth (2015). Available online at: https://www.nice.org.uk/guidance/ng25 (Accessed August 6, 2024).

Google Scholar

11. Doyle LW, Cheong JL, Ehrenkranz RA, and Halliday HL. Early (< 8 days) systemic postnatal corticosteroids for prevention of bronchopulmonary dysplasia in preterm infants. Cochrane Database Syst Rev. (2017) 10:CD001146. doi: 10.1002/14651858.CD001146.pub5

PubMed Abstract | Crossref Full Text | Google Scholar

12. Doyle LW, Cheong JL, Hay S, Manley BJ, and Halliday HL. Late (≥ 7 days) systemic postnatal corticosteroids for prevention of bronchopulmonary dysplasia in preterm infants. Cochrane Database Syst Rev. (2021) 11:CD001145. doi: 10.1002/14651858.CD001145.pub5

PubMed Abstract | Crossref Full Text | Google Scholar

13. Thevathasan I and Said JM. Controversies in antenatal corticosteroid treatment. Prenat Diagn. (2020) 40:1138–49. doi: 10.1002/pd.5664

PubMed Abstract | Crossref Full Text | Google Scholar

14. Bonanno C and Wapner RJ. Antenatal corticosteroids in the management of preterm birth: are we back where we started? Obstet Gynecol Clin North Am. (2012) 39:47–63. doi: 10.1016/j.ogc.2011.12.006

PubMed Abstract | Crossref Full Text | Google Scholar

15. Falah N and Haas DM. Antenatal corticosteroid therapy: Current strategies and identifying mediators and markers for response. Semin Perinatol. (2014) 38:528–33. doi: 10.1053/j.semperi.2014.08.018

PubMed Abstract | Crossref Full Text | Google Scholar

16. Jobe AH, Kemp M, Schmidt A, Takahashi T, Newnham J, and Milad M. Antenatal corticosteroids: a reappraisal of the drug formulation and dose. Pediatr Res. (2021) 89:318–25. doi: 10.1038/s41390-020-01249-w

PubMed Abstract | Crossref Full Text | Google Scholar

17. Doyle LW and Cheong JLY. Postnatal corticosteroids to prevent or treat bronchopulmonary dysplasia – who might benefit? Semin Fetal Neonatal Med. (2017) 22:290–5. doi: 10.1016/j.siny.2017.07.003

PubMed Abstract | Crossref Full Text | Google Scholar

18. Cummings JJ and Pramanik AK. Postnatal corticosteroids to prevent or treat chronic lung disease following preterm birth. Pediatrics. (2022) 149:e2022057530. doi: 10.1542/peds.2022-057530

PubMed Abstract | Crossref Full Text | Google Scholar

19. Takahashi T, Jobe AH, Fee EL, Newnham JP, Schmidt AF, Usuda H, et al. The complex challenge of antenatal steroid therapy nonresponsiveness. Am J Obstet Gynecol. (2022) 227:696–704. doi: 10.1016/j.ajog.2022.07.030

PubMed Abstract | Crossref Full Text | Google Scholar

20. Lockett J, Inder WJ, and Clifton VL. The glucocorticoid receptor: isoforms, functions, and contribution to glucocorticoid sensitivity. Endocr Rev. (2024) 45:593–624. doi: 10.1210/endrev/bnae008

PubMed Abstract | Crossref Full Text | Google Scholar

21. Vandevyver S, Dejager L, and Libert C. Comprehensive overview of the structure and regulation of the glucocorticoid receptor. Endocr Rev. (2014) 35:671–93. doi: 10.1210/er.2014-1010

PubMed Abstract | Crossref Full Text | Google Scholar

22. Kino T, Su YA, and Chrousos GP. Human glucocorticoid receptor isoform beta: recent understanding of its potential implications in physiology and pathophysiology. Cell Mol Life Sci. (2009) 66:3435–48. doi: 10.1007/s00018-009-0098-z

PubMed Abstract | Crossref Full Text | Google Scholar

23. Ramos-Ramírez P and Tliba O. Glucocorticoid receptor β (GRβ): beyond its dominant-negative function. Int J Mol Sci. (2021) 22:3649. doi: 10.3390/ijms22073649

PubMed Abstract | Crossref Full Text | Google Scholar

24. Thomas-Chollier M, Watson LC, Cooper SB, Pufall MA, Liu JS, Borzym K, et al. A naturally occurring insertion of a single amino acid rewires transcriptional regulation by glucocorticoid receptor isoforms. Proc Natl Acad Sci USA. (2013) 110:17826–31. doi: 10.1073/pnas.1316235110

PubMed Abstract | Crossref Full Text | Google Scholar

25. Morgan DJ, Poolman TM, Williamson AJK, Wang Z, Clark NR, Ma’ayan A, et al. Glucocorticoid receptor isoforms direct distinct mitochondrial programs to regulate ATP production. Sci Rep. (2016) 6:26419. doi: 10.1038/srep26419

PubMed Abstract | Crossref Full Text | Google Scholar

26. Moalli PA, Pillay S, Krett NL, and Rosen ST. Alternatively spliced glucocorticoid receptor messenger RNAs in glucocorticoid-resistant human multiple myeloma cells. Cancer Res. (1993) 53:3877–9.

PubMed Abstract | Google Scholar

27. Sánchez-Vega B, Krett N, Rosen ST, and Gandhi V. Glucocorticoid receptor transcriptional isoforms and resistance in multiple myeloma cells. Mol Cancer Ther. (2006) 5:3062–70. doi: 10.1158/1535-7163.MCT-06-0344

PubMed Abstract | Crossref Full Text | Google Scholar

28. Lu NZ, Collins JB, Grissom SF, and Cidlowski JA. Selective regulation of bone cell apoptosis by translational isoforms of the glucocorticoid receptor. Mol Cell Biol. (2007) 27:7143–60. doi: 10.1128/MCB.00253-07

PubMed Abstract | Crossref Full Text | Google Scholar

29. Wu I, Shin SC, Cao Y, Bender IK, Jafari N, Feng G, et al. Selective glucocorticoid receptor translational isoforms reveal glucocorticoid-induced apoptotic transcriptomes. Cell Death Dis. (2013) 4:e453. doi: 10.1038/cddis.2012.193

PubMed Abstract | Crossref Full Text | Google Scholar

30. Yudt MR and Cidlowski JA. Molecular identification and characterization of A and B forms of the glucocorticoid receptor. Mol Endocrinol. (2001) 15:1093–103. doi: 10.1210/mend.15.7.0667

PubMed Abstract | Crossref Full Text | Google Scholar

31. Bender IK, Cao Y, and Lu NZ. Determinants of the heightened activity of glucocorticoid receptor translational isoforms. Mol Endocrinol. (2013) 27:1577–87. doi: 10.1210/me.2013-1009

PubMed Abstract | Crossref Full Text | Google Scholar

32. Gross KL, Oakley RH, Scoltock AB, Jewell CM, and Cidlowski JA. Glucocorticoid receptor α isoform-selective regulation of antiapoptotic genes in osteosarcoma cells: a new mechanism for glucocorticoid resistance. Mol Endocrinol. (2011) 25:1087–99. doi: 10.1210/me.2010-0051

PubMed Abstract | Crossref Full Text | Google Scholar

33. Sinclair D, Webster MJ, Wong J, and Weickert CS. Dynamic molecular and anatomical changes in the glucocorticoid receptor in human cortical development. Mol Psychiatry. (2011) 16:504–15. doi: 10.1038/mp.2010.28

PubMed Abstract | Crossref Full Text | Google Scholar

34. Cao Y, Bender IK, Konstantinidis AK, Shin SC, Jewell CM, Cidlowski JA, et al. Glucocorticoid receptor translational isoforms underlie maturational stage-specific glucocorticoid sensitivities of dendritic cells in mice and humans. Blood. (2013) 121:1553–62. doi: 10.1182/blood-2012-05-432336

PubMed Abstract | Crossref Full Text | Google Scholar

35. Turner JD, Alt SR, Cao L, Vernocchi S, Trifonova S, Battello N, et al. Transcriptional control of the glucocorticoid receptor: CpG islands, epigenetics and more. Biochem Pharmacol. (2010) 80:1860–8. doi: 10.1016/j.bcp.2010.06.037

PubMed Abstract | Crossref Full Text | Google Scholar

36. Cao-Lei L, Leija SC, Kumsta R, Wüst S, Meyer J, Turner JD, et al. Transcriptional control of the human glucocorticoid receptor: identification and analysis of alternative promoter regions. Hum Genet. (2011) 129:533–43. doi: 10.1007/s00439-011-0949-1

PubMed Abstract | Crossref Full Text | Google Scholar

37. McCormick JA, Lyons V, Jacobson MD, Noble J, Diorio J, Nyirenda M, et al. 5’-heterogeneity of glucocorticoid receptor messenger RNA is tissue specific: differential regulation of variant transcripts by early-life events. Mol Endocrinol. (2000) 14:506–17. doi: 10.1210/mend.14.4.0438

PubMed Abstract | Crossref Full Text | Google Scholar

38. Turner JD and Muller CP. Structure of the glucocorticoid receptor (NR3C1) gene 5’ untranslated region: identification, and tissue distribution of multiple new human exon 1. J Mol Endocrinol. (2005) 35:283–92. doi: 10.1677/jme.1.01822

PubMed Abstract | Crossref Full Text | Google Scholar

39. Lv M, Zhang X, Jia H, Li D, Zhang B, Zhang H, et al. An oncogenic role of miR-142-3p in human T-cell acute lymphoblastic leukemia (T-ALL) by targeting glucocorticoid receptor-α and cAMP/PKA pathways. Leukemia. (2012) 26:769–77. doi: 10.1038/leu.2011.273

PubMed Abstract | Crossref Full Text | Google Scholar

40. Vreugdenhil E, Verissimo CSL, Mariman R, Kamphorst JT, Barbosa JS, Zweers T, et al. MicroRNA 18 and 124a down-regulate the glucocorticoid receptor: implications for glucocorticoid responsiveness in the brain. Endocrinology. (2009) 150:2220–8. doi: 10.1210/en.2008-1335

PubMed Abstract | Crossref Full Text | Google Scholar

41. Beck IME, Van den Berghe W, Vermeulen L, Yamamoto KR, Haegeman G, and De Bosscher K. Crosstalk in inflammation: the interplay of glucocorticoid receptor-based mechanisms and kinases and phosphatases. Endocr Rev. (2009) 30:830–82. doi: 10.1210/er.2009-0013

PubMed Abstract | Crossref Full Text | Google Scholar

42. Ito K, Yamamura S, Essilfie-Quaye S, Cosio B, Ito M, Barnes PJ, et al. Histone deacetylase 2-mediated deacetylation of the glucocorticoid receptor enables NF-kappaB suppression. J Exp Med. (2006) 203:7–13. doi: 10.1084/jem.20050466

PubMed Abstract | Crossref Full Text | Google Scholar

43. Kino T and Chrousos GP. Acetylation-mediated epigenetic regulation of glucocorticoid receptor activity: circadian rhythm-associated alterations of glucocorticoid actions in target tissues. Mol Cell Endocrinol. (2011) 336:23–30. doi: 10.1016/j.mce.2010.12.001

PubMed Abstract | Crossref Full Text | Google Scholar

44. De Bosscher K, Vanden Berghe W, and Haegeman G. The interplay between the glucocorticoid receptor and nuclear factor-κB or activator protein-1: molecular mechanisms for gene repression. Endocr Rev. (2003) 24:488–522. doi: 10.1210/er.2002-0006

PubMed Abstract | Crossref Full Text | Google Scholar

45. Escoter-Torres L, Greulich F, Quagliarini F, Wierer M, and Uhlenhaut NH. Anti-inflammatory functions of the glucocorticoid receptor require DNA binding. Nucleic Acids Res. (2020) 48:8393–407. doi: 10.1093/nar/gkaa565

PubMed Abstract | Crossref Full Text | Google Scholar

46. Vettorazzi S, Nalbantoglu D, Gebhardt JCM, and Tuckermann J. A guide to changing paradigms of glucocorticoid receptor function—a model system for genome regulation and physiology. FEBS J. (2022) 289:5718–43. doi: 10.1111/febs.16100

PubMed Abstract | Crossref Full Text | Google Scholar

47. Weikum ER, de Vera IMS, Nwachukwu JC, Hudson WH, Nettles KW, Kojetin DJ, et al. Tethering not required: the glucocorticoid receptor binds directly to activator protein-1 recognition motifs to repress inflammatory genes. Nucleic Acids Res. (2017) 45:8596–608. doi: 10.1093/nar/gkx509

PubMed Abstract | Crossref Full Text | Google Scholar

48. Hudson WH, de VIMS, JC N, ER W, AG H, Yang Q, et al. Cryptic glucocorticoid receptor-binding sites pervade genomic NF-κB response elements. Nat Commun. (2018) 9:1337. doi: 10.1038/s41467-018-03780-1

PubMed Abstract | Crossref Full Text | Google Scholar

49. Presman DM, Ganguly S, Schiltz RL, Johnson TA, Karpova TS, and Hager GL. DNA binding triggers tetramerization of the glucocorticoid receptor in live cells. Proc Natl Acad Sci USA. (2016) 113:8236–41. doi: 10.1073/pnas.1606774113

PubMed Abstract | Crossref Full Text | Google Scholar

50. Gerber AN, Newton R, and Sasse SK. Repression of transcription by the glucocorticoid receptor: A parsimonious model for the genomics era. J Biol Chem. (2021) 296:100687. doi: 10.1016/j.jbc.2021.100687

PubMed Abstract | Crossref Full Text | Google Scholar

51. Scheschowitsch K, Leite JA, and Assreuy J. New insights in glucocorticoid receptor signaling—more than just a ligand-binding receptor. Front Endocrinol. (2017) 8:16. doi: 10.3389/fendo.2017.00016

PubMed Abstract | Crossref Full Text | Google Scholar

52. Panettieri RA, Schaafsma D, Amrani Y, Koziol-White C, Ostrom R, and Tliba O. Non-genomic effects of glucocorticoids: an updated view. Trends Pharmacol Sci. (2019) 40:38–49. doi: 10.1016/j.tips.2018.11.002

PubMed Abstract | Crossref Full Text | Google Scholar

53. Gutièrrez-Mecinas M, Trollope AF, Collins A, Morfett H, Hesketh SA, Kersanté F, et al. Long-lasting behavioral responses to stress involve a direct interaction of glucocorticoid receptors with ERK1/2–MSK1–Elk-1 signaling. Proc Natl Acad Sci USA. (2011) 108:13806–11. doi: 10.1073/pnas.1104383108

PubMed Abstract | Crossref Full Text | Google Scholar

54. Kokkinopoulou I and Moutsatsou P. Mitochondrial glucocorticoid receptors and their actions. Int J Mol Sci. (2021) 22:6054. doi: 10.3390/ijms22116054

PubMed Abstract | Crossref Full Text | Google Scholar

55. Quax RA, Manenschijn L, Koper JW, Hazes JM, Lamberts SWJ, van Rossum EFC, et al. Glucocorticoid sensitivity in health and disease. Nat Rev Endocrinol. (2013) 9:670–86. doi: 10.1038/nrendo.2013.183

PubMed Abstract | Crossref Full Text | Google Scholar

56. Bourke CH, Harrell CS, and Neigh GN. Stress-induced sex differences: adaptations mediated by the glucocorticoid receptor. Horm Behav. (2012) 62:210–8. doi: 10.1016/j.yhbeh.2012.02.024

PubMed Abstract | Crossref Full Text | Google Scholar

57. Moisan M-P. Sexual dimorphism in glucocorticoid stress response. Int J Mol Sci. (2021) 22:3139. doi: 10.3390/ijms22063139

PubMed Abstract | Crossref Full Text | Google Scholar

58. Rohleder N, Schommer NC, Hellhammer DH, Engel R, and Kirschbaum C. Sex differences in glucocorticoid sensitivity of proinflammatory cytokine production after psychosocial stress. Psychosom Med. (2001) 63:966–72. doi: 10.1097/00006842-200111000-00016

PubMed Abstract | Crossref Full Text | Google Scholar

59. Fernandez-Real J-M, Pugeat M, Grasa M, Broch M, Vendrell J, Brun J, et al. Serum corticosteroid-binding globulin concentration and insulin resistance syndrome: a population study. J Clin Endocrinol Metab. (2002) 87:4686–90. doi: 10.1210/jc.2001-011843

PubMed Abstract | Crossref Full Text | Google Scholar

60. Lu KD, Radom-Aizik S, Haddad F, Zaldivar F, Kraft M, and Cooper DM. Glucocorticoid receptor expression on circulating leukocytes differs between healthy male and female adults. J Clin Transl Sci. (2017) 1:108–14. doi: 10.1017/cts.2016.20

PubMed Abstract | Crossref Full Text | Google Scholar

61. Bauer ME. Stress, glucocorticoids and ageing of the immune system. Stress. (2005) 8:69–83. doi: 10.1080/10253890500100240

PubMed Abstract | Crossref Full Text | Google Scholar

62. Wilkinson L, Verhoog NJD, and Louw A. Disease- and treatment-associated acquired glucocorticoid resistance. Endocr Connect. (2018) 7:R328–49. doi: 10.1530/EC-18-0421

PubMed Abstract | Crossref Full Text | Google Scholar

63. Martins CS, Elias D, Colli LM, Couri CE, Souza MCLA, Moreira AC, et al. HPA axis dysregulation, NR3C1 polymorphisms and glucocorticoid receptor isoforms imbalance in metabolic syndrome. Diabetes Metab Res Rev. (2017) 33:e2842. doi: 10.1002/dmrr.2842

PubMed Abstract | Crossref Full Text | Google Scholar

64. Jewell CM and Cidlowski JA. Molecular evidence for a link between the N363S glucocorticoid receptor polymorphism and altered gene expression. J Clin Endocrinol Metab. (2007) 92:3268–77. doi: 10.1210/jc.2007-0642

PubMed Abstract | Crossref Full Text | Google Scholar

65. van Rossum EFC, Voorhoeve PG, te Velde SJ, Koper JW, Delemarre-van de Waal HA, Kemper HCG, et al. The ER22/23EK polymorphism in the glucocorticoid receptor gene is associated with a beneficial body composition and muscle strength in young adults. J Clin Endocrinol Metab. (2004) 89:4004–9. doi: 10.1210/jc.2003-031422

PubMed Abstract | Crossref Full Text | Google Scholar

66. Russcher H, van Rossum EFC, de Jong FH, Brinkmann AO, Lamberts SWJ, and Koper JW. Increased expression of the glucocorticoid receptor-A translational isoform as a result of the ER22/23EK polymorphism. Mol Endocrinol. (2005) 19:1687–96. doi: 10.1210/me.2004-0467

PubMed Abstract | Crossref Full Text | Google Scholar

67. Schaaf MJM and Cidlowski JA. AUUUA motifs in the 3’UTR of human glucocorticoid receptor α and β mRNA destabilize mRNA and decrease receptor protein expression. Steroids. (2002) 67:627–36. doi: 10.1016/s0039-128x(02)00015-6

PubMed Abstract | Crossref Full Text | Google Scholar

68. Gasic V, Zukic B, Stankovic B, Janic D, Dokmanovic L, Lazic J, et al. Pharmacogenomic markers of glucocorticoid response in the initial phase of remission induction therapy in childhood acute lymphoblastic leukemia. Radiol Oncol. (2018) 52:296–306. doi: 10.2478/raon-2018-0034

PubMed Abstract | Crossref Full Text | Google Scholar

69. Štampar P, Blagus T, Goričar K, Bogovič P, Turel G, Strle F, et al. Genetic variability in the glucocorticoid pathway and treatment outcomes in hospitalized patients with COVID-19: a pilot study. Front Pharmacol. (2024) 15:1418567. doi: 10.3389/fphar.2024.1418567

PubMed Abstract | Crossref Full Text | Google Scholar

70. Goleva E, Babineau DC, Gill MA, Jackson LP, Shao B, Hu Z, et al. Expression of corticosteroid-regulated genes by PBMCs in children with asthma. J Allergy Clin Immunol. (2019) 143:940–7.e6. doi: 10.1016/j.jaci.2018.06.043

PubMed Abstract | Crossref Full Text | Google Scholar

71. Goleva E, Jackson LP, Gleason M, and Leung DYM. Usefulness of PBMCs to predict clinical response to corticosteroids in asthmatic patients. J Allergy Clin Immunol. (2012) 129:687–93.e1. doi: 10.1016/j.jaci.2011.12.001

PubMed Abstract | Crossref Full Text | Google Scholar

72. Haarman EG, Kaspers GJL, Pieters R, Rottier MMA, and Veerman AJP. Glucocorticoid receptor alpha, beta and gamma expression vs in vitro glucocorticoid resistance in childhood leukemia. Leukemia. (2004) 18:530–7. doi: 10.1038/sj.leu.2403225

PubMed Abstract | Crossref Full Text | Google Scholar

73. Lea S, Harbron C, Khan N, Booth G, Armstrong J, and Singh D. Corticosteroid insensitive alveolar macrophages from asthma patients; synergistic interaction with a p38 mitogen-activated protein kinase (MAPK) inhibitor: p38 and steroid synergy in steroid resistant asthma patients. Br J Clin Pharmacol. (2015) 79:756–66. doi: 10.1111/bcp.12536

PubMed Abstract | Crossref Full Text | Google Scholar

74. Kaur M, Smyth LJ, Cadden P, Grundy S, Ray D, Plumb J, et al. T lymphocyte insensitivity to corticosteroids in chronic obstructive pulmonary disease. Respir Res. (2012) 13:20. doi: 10.1186/1465-9921-13-20

PubMed Abstract | Crossref Full Text | Google Scholar

75. Carlotti AP de CP, Franco PB, Elias LL, Facincani I, Costa ELC, Foss N, et al. Glucocorticoid receptors, in vitro steroid sensitivity, and cytokine secretion in idiopathic nephrotic syndrome. Kidney Int. (2004) 65:403–8. doi: 10.1111/j.1523-1755.2004.00392.x

PubMed Abstract | Crossref Full Text | Google Scholar

76. Urzua CA, Guerrero J, Gatica H, Velasquez V, and Goecke A. Evaluation of the glucocorticoid receptor as a biomarker of treatment response in Vogt-Koyanagi-Harada disease. Invest Ophthalmol Vis Sci. (2017) 58:974. doi: 10.1167/iovs.16-20783

PubMed Abstract | Crossref Full Text | Google Scholar

77. Pieters R, den Boer ML, Durian M, Janka G, Schmiegelow K, Kaspers GJ, et al. Relation between age, immunophenotype and in vitro drug resistance in 395 children with acute lymphoblastic leukemia–implications for treatment of infants. Leukemia. (1998) 12:1344–8. doi: 10.1038/sj.leu.2401129

PubMed Abstract | Crossref Full Text | Google Scholar

78. di Mambro AJ, Parker R, McCune A, Gordon F, Dayan CM, and Collins P. In vitro steroid resistance correlates with outcome in severe alcoholic hepatitis. Hepatology. (2011) 53:1316–22. doi: 10.1002/hep.24159

PubMed Abstract | Crossref Full Text | Google Scholar

79. Maranville JC, Micic D, Hanauer SB, Di Rienzo A, and Kupfer SS. In vitro sensitivity assays and clinical response to glucocorticoids in patients with inflammatory bowel disease. J Crohns Colitis. (2014) 8:1539–47. doi: 10.1016/j.crohns.2014.06.013

PubMed Abstract | Crossref Full Text | Google Scholar

80. Chambers ES, Nanzer AM, Pfeffer PE, Richards DF, Timms PM, Martineau AR, et al. Distinct endotypes of steroid-resistant asthma characterized by IL-17A(high) and IFN-γ(high) immunophenotypes: potential benefits of calcitriol. J Allergy Clin Immunol. (2015) 136:628–37.e4. doi: 10.1016/j.jaci.2015.01.026

PubMed Abstract | Crossref Full Text | Google Scholar

81. Mahboub B, Al Heialy S, Hachim MY, Ramakrishnan RK, Alzaabi A, Seliem RM, et al. Vitamin D regulates the expression of glucocorticoid receptors in blood of severe asthmatic patients. J Immunol Res. (2021) 2021:1–10. doi: 10.1155/2021/9947370

PubMed Abstract | Crossref Full Text | Google Scholar

82. Martineau AR, Cates CJ, Urashima M, Jensen M, Griffiths AP, Nurmatov U, et al. Vitamin D for the management of asthma. Cochrane Database Syst Rev. (2016) 9:CD011511. doi: 10.1002/14651858.CD011511.Pub2

PubMed Abstract | Crossref Full Text | Google Scholar

83. von Zimmermann C, Böhm L, Richter-Schmidinger T, Kornhuber J, Lenz B, and Mühle C. Ex vivo glucocorticoid receptor-mediated IL-10 response predicts the course of depression severity. J Neural Transm (Vienna). (2021) 128:95–104. doi: 10.1007/s00702-020-02288-7

PubMed Abstract | Crossref Full Text | Google Scholar

84. Guerrero J, Gatica HA, Rodríguez M, Estay R, and Goecke I. Septic serum induces glucocorticoid resistance and modifies the expression of glucocorticoid isoforms receptors: a prospective cohort study and in vitro experimental assay. Crit Care. (2013) 17:R107. doi: 10.1186/cc12774

PubMed Abstract | Crossref Full Text | Google Scholar

85. Bergström I, Lundberg AK, Jönsson S, Särndahl E, Ernerudh J, and Jonasson L. Annexin A1 in blood mononuclear cells from patients with coronary artery disease: its association with inflammatory status and glucocorticoid sensitivity. PloS One. (2017) 12:e0174177. doi: 10.1371/journal.pone.0174177

PubMed Abstract | Crossref Full Text | Google Scholar

86. Jönsson S, Lundberg AK, Chung RWS, and Jonasson L. Glucocorticoid sensitivity and inflammatory status of peripheral blood mononuclear cells in patients with coronary artery disease. Ann Med. (2018) 50:260–8. doi: 10.1080/07853890.2018.1445278

PubMed Abstract | Crossref Full Text | Google Scholar

87. Rohleder N, Joksimovic L, Wolf JM, and Kirschbaum C. Hypocortisolism and increased glucocorticoid sensitivity of pro-Inflammatory cytokine production in Bosnian war refugees with posttraumatic stress disorder. Biol Psychiatry. (2004) 55:745–51. doi: 10.1016/j.biopsych.2003.11.018

PubMed Abstract | Crossref Full Text | Google Scholar

88. Kan M and Himes BE. Insights into glucocorticoid responses derived from omics studies. Pharmacol Ther. (2021) 218:107674. doi: 10.1016/j.pharmthera.2020.107674

PubMed Abstract | Crossref Full Text | Google Scholar

89. Keenan CR, Radojicic D, Li M, Radwan A, and Stewart AG. Heterogeneity in mechanisms influencing glucocorticoid sensitivity: the need for a systems biology approach to treatment of glucocorticoid-resistant inflammation. Pharmacol Ther. (2015) 150:81–93. doi: 10.1016/j.pharmthera.2015.01.006

PubMed Abstract | Crossref Full Text | Google Scholar

90. Neyton LPA, Patel RK, Sarma A, Willmore A, Haller SC, Kangelaris KN, et al. Distinct pulmonary and systemic effects of dexamethasone in severe COVID-19. Nat Commun. (2024) 15:5483. doi: 10.1038/s41467-024-49756-2

PubMed Abstract | Crossref Full Text | Google Scholar

91. Spick M, Campbell A, Baricevic-Jones I, von Gerichten J, Lewis H-M, Frampas CF, et al. Multi-omics reveals mechanisms of partial modulation of COVID-19 dysregulation by glucocorticoid treatment. Int J Mol Sci. (2022) 23:12079. doi: 10.3390/ijms232012079

PubMed Abstract | Crossref Full Text | Google Scholar

92. Resztak JA, Wei J, Zilioli S, Sendler E, Alazizi A, Mair-Meijers HE, et al. Genetic control of the dynamic transcriptional response to immune stimuli and glucocorticoids at single-cell resolution. Genome Res. (2023) 33:839–56. doi: 10.1101/gr.276765.122

PubMed Abstract | Crossref Full Text | Google Scholar

93. Chantzichristos D, Svensson P-A, Garner T, Glad CA, Walker BR, Bergthorsdottir R, et al. Identification of human glucocorticoid response markers using integrated multi-omic analysis from a randomized crossover trial. eLife. (2021) 10::e62236. doi: 10.7554/eLife.62236

PubMed Abstract | Crossref Full Text | Google Scholar

94. Autry RJ, Paugh SW, Carter R, Shi L, Liu J, Ferguson DC, et al. Integrative genomic analyses reveal mechanisms of glucocorticoid resistance in acute lymphoblastic leukemia. Nat Cancer. (2020) 1:329–44. doi: 10.1038/s43018-020-0037-3

PubMed Abstract | Crossref Full Text | Google Scholar

95. Pofi R and Tomlinson JW. Glucocorticoids in pregnancy. Obstet Med. (2020) 13:62–9. doi: 10.1177/1753495X19847832

PubMed Abstract | Crossref Full Text | Google Scholar

96. Garrud TAC and Giussani DA. Combined antioxidant and glucocorticoid therapy for safer treatment of preterm birth. Trends Endocrinol Metab. (2019) 30:258–69. doi: 10.1016/j.tem.2019.02.003

PubMed Abstract | Crossref Full Text | Google Scholar

97. Brown RW, Diaz R, Robson AC, Kotelevtsev YV, Mullins JJ, Kaufman MH, et al. The ontogeny of 11 beta-hydroxysteroid dehydrogenase type 2 and mineralocorticoid receptor gene expression reveal intricate control of glucocorticoid action in development. Endocrinology. (1996) 137:794–7. doi: 10.1210/endo.137.2.8593833

PubMed Abstract | Crossref Full Text | Google Scholar

98. Speirs HJL, Seckl JR, and Brown RW. Ontogeny of glucocorticoid receptor and 11beta-hydroxysteroid dehydrogenase type-1 gene expression identifies potential critical periods of glucocorticoid susceptibility during development. J Endocrinol. (2004) 181:105–16. doi: 10.1677/joe.0.1810105

PubMed Abstract | Crossref Full Text | Google Scholar

99. Liggins GC. Premature delivery of foetal lambs infused with glucocorticoids. J Endocr. (1969) 45:515–23. doi: 10.1677/joe.0.0450515

PubMed Abstract | Crossref Full Text | Google Scholar

100. Adamson IY and King GM. Postnatal development of rat lung following retarded fetal lung growth. Pediatr Pulmonol. (1988) 4:230–6. doi: 10.1002/ppul.1950040408

PubMed Abstract | Crossref Full Text | Google Scholar

101. Kotas RV and Avery ME. Accelerated appearance of pulmonary surfactant in the fetal rabbit. J Appl Physiol. (1971) 30:358–61. doi: 10.1152/jappl.1971.30.3.358

PubMed Abstract | Crossref Full Text | Google Scholar

102. Regazzi FM, Silva LCG, Lúcio CF, Veiga G a. L, Angrimani DSR, Kishi D, et al. Influence of prenatal maternal corticosteroid therapy on clinical and metabolic features and pulmonary function of preterm newborn puppies. Theriogenology. (2017) 97:179–85. doi: 10.1016/j.theriogenology.2017.04.039

PubMed Abstract | Crossref Full Text | Google Scholar

103. Schmidt AF, Kannan PS, Bridges JP, Filuta A, Lipps D, Kemp M, et al. Dosing and formulation of antenatal corticosteroids for fetal lung maturation and gene expression in Rhesus macaques. Sci Rep. (2019) 9:9039. doi: 10.1038/s41598-019-45171-6

PubMed Abstract | Crossref Full Text | Google Scholar

104. Ballard PL and Ballard RA. Cytoplasmic receptor for glucocorticoids in lung of the human fetus and neonate. J Clin Invest. (1974) 53:477–86. doi: 10.1172/JCI107581

PubMed Abstract | Crossref Full Text | Google Scholar

105. Giannopoulos G. Variations in the levels of cytoplasmic glucocorticoid receptors in lungs of various species at different developmental stages. Endocrinology. (1974) 94:450–8. doi: 10.1210/endo-94-2-450

PubMed Abstract | Crossref Full Text | Google Scholar

106. Bird AD, Tan KH, Olsson PF, Zieba M, Flecknoe SJ, Liddicoat DR, et al. Identification of glucocorticoid-regulated genes that control cell proliferation during murine respiratory development. J Physiol. (2007) 585:187–201. doi: 10.1113/jphysiol.2007.136796

PubMed Abstract | Crossref Full Text | Google Scholar

107. Brewer JA, Kanagawa O, Sleckman BP, and Muglia LJ. Thymocyte apoptosis induced by T cell activation is mediated by glucocorticoids. vivo. J Immunol. (2002) 169:1837–43. doi: 10.4049/jimmunol.169.4.1837

PubMed Abstract | Crossref Full Text | Google Scholar

108. Cole TJ, Blendy JA, Monaghan AP, Krieglstein K, Schmid W, Aguzzi A, et al. Targeted disruption of the glucocorticoid receptor gene blocks adrenergic chromaffin cell development and severely retards lung maturation. Genes Dev. (1995) 9:1608–21. doi: 10.1101/gad.9.13.1608

PubMed Abstract | Crossref Full Text | Google Scholar

109. Cole TJ, Solomon NM, Van Driel R, Monk JA, Bird D, Richardson SJ, et al. Altered epithelial cell proportions in the fetal lung of glucocorticoid receptor null mice. Am J Respir Cell Mol Biol. (2004) 30:613–9. doi: 10.1165/rcmb.2003-0236OC

PubMed Abstract | Crossref Full Text | Google Scholar

110. Reichardt HM, Kaestner KH, Tuckermann J, Kretz O, Wessely O, Bock R, et al. DNA binding of the glucocorticoid receptor is not essential for survival. Cell. (1998) 93:531–41. doi: 10.1016/S0092-8674(00)81183-6

PubMed Abstract | Crossref Full Text | Google Scholar

111. Habermehl D, Parkitna JR, Kaden S, Brügger B, Wieland F, Gröne HJ, et al. Glucocorticoid activity during lung maturation is essential in mesenchymal and less in alveolar epithelial cells. Mol Endocrinol. (2011) 25:1280–8. doi: 10.1210/me.2009-0380

PubMed Abstract | Crossref Full Text | Google Scholar

112. Li A, Hardy R, Stoner S, Tuckermann J, Seibel M, and Zhou H. Deletion of mesenchymal glucocorticoid receptor attenuates embryonic lung development and abdominal wall closure. PloS One. (2013) 8:e63578. doi: 10.1371/journal.pone.0063578

PubMed Abstract | Crossref Full Text | Google Scholar

113. Bird AD, Choo YL, Hooper SB, McDougall ARA, and Cole TJ. Mesenchymal glucocorticoid receptor regulates the development of multiple cell layers of the mouse lung. Am J Respir Cell Mol Biol. (2014) 50:419–28. doi: 10.1165/rcmb.2013-0169OC

PubMed Abstract | Crossref Full Text | Google Scholar

114. Ikegami M, Polk D, and Jobe A. Minimum interval from fetal betamethasone treatment to postnatal lung responses in preterm lambs. Am J Obstet Gynecol. (1996) 174:1408–13. doi: 10.1016/S0002-9378(96)70581-1

PubMed Abstract | Crossref Full Text | Google Scholar

115. Ballard PL, Ning Y, Polk D, Ikegami M, and Jobe AH. Glucocorticoid regulation of surfactant components in immature lambs. Am J Physiol Lung Cell Mol Physiol. (1997) 273:L1048–57. doi: 10.1152/ajplung.1997.273.5.L1048

PubMed Abstract | Crossref Full Text | Google Scholar

116. Jobe AH. Animal models of antenatal corticosteroids: clinical implications. Clin Obstet Gynecol. (2003) 46:174–89. doi: 10.1097/00003081-200303000-00021

PubMed Abstract | Crossref Full Text | Google Scholar

117. Charmandari E, Kino T, Ichijo T, and Chrousos GP. Generalized glucocorticoid resistance: clinical aspects, molecular mechanisms, and implications of a rare genetic disorder. J Clin Endocrinol Metab. (2008) 93:1563–72. doi: 10.1210/jc.2008-0040

PubMed Abstract | Crossref Full Text | Google Scholar

118. Takahashi T, Saito M, Schmidt AF, Usuda H, Takahashi Y, Watanabe S, et al. Variability in the efficacy of a standardized antenatal steroid treatment was independent of maternal or fetal plasma drug levels: evidence from a sheep model of pregnancy. Am J Obstet Gynecol. (2020) 223:921.e1–921.e10. doi: 10.1016/j.ajog.2020.05.032

PubMed Abstract | Crossref Full Text | Google Scholar

119. Grier DG and Halliday HL. Effects of glucocorticoids on fetal and neonatal lung development. Treat Respir Med. (2004) 3:295–306. doi: 10.2165/00151829-200403050-00004

PubMed Abstract | Crossref Full Text | Google Scholar

120. Nakamura K, Stokes JB, and McCray PB. Endogenous and exogenous glucocorticoid regulation of ENaC mRNA expression in developing kidney and lung. Am J Physiol Cell Physiol. (2002) 283:C762–72. doi: 10.1152/ajpcell.00029.2002

PubMed Abstract | Crossref Full Text | Google Scholar

121. Oshika E, Liu S, Ung LP, Singh G, Shinozuka H, Michalopoulos GK, et al. Glucocorticoid-induced effects on pattern formation and epithelial cell differentiation in early embryonic rat lungs. Pediatr Res. (1998) 43:305–14. doi: 10.1203/00006450-199803000-00001

PubMed Abstract | Crossref Full Text | Google Scholar

122. Gonzales LW, Guttentag SH, Wade KC, Postle AD, and Ballard PL. Differentiation of human pulmonary type II cells in vitro by glucocorticoid plus cAMP. Am J Physiol Lung Cell Mol Physiol. (2002) 283:L940–51. doi: 10.1152/ajplung.00127.2002

PubMed Abstract | Crossref Full Text | Google Scholar

123. Tan RC, Ikegami M, Jobe AH, Yao LY, Possmayer F, and Ballard PL. Developmental and glucocorticoid regulation of surfactant protein mRNAs in preterm lambs. Am J Physiol Lung Cell Mol Physiol. (1999) 277:L1142–8. doi: 10.1152/ajplung.1999.277.6.L1142

PubMed Abstract | Crossref Full Text | Google Scholar

124. Post M, Barsoumian A, and Smith BT. The cellular mechanism of glucocorticoid acceleration of fetal lung maturation. J Biol Chem. (1986) 261:2179–84. doi: 10.1016/S0021-9258(17)35914-8

Crossref Full Text | Google Scholar

125. Frank L. Prenatal dexamethasone treatment improves survival of newborn rats during prolonged high O₂ exposure. Pediatr Res. (1992) 32:215–21. doi: 10.1203/00006450-199208000-00018

PubMed Abstract | Crossref Full Text | Google Scholar

126. Walther FJ, Ikegami M, Warburton D, and Polk DH. Corticosteroids, thyrotropin-releasing hormone, and antioxidant enzymes in preterm lamb lungs. Pediatr Res. (1991) 30:518–21. doi: 10.1203/00006450-199112000-00004

PubMed Abstract | Crossref Full Text | Google Scholar

127. Balany J and Bhandari V. Understanding the impact of infection, inflammation, and their persistence in the pathogenesis of bronchopulmonary dysplasia. Front Med (Lausanne). (2015) 2:90. doi: 10.3389/fmed.2015.00090

PubMed Abstract | Crossref Full Text | Google Scholar

128. Groneck P, Reuss D, Götze-Speer B, and Speer CP. Effects of dexamethasone on chemotactic activity and inflammatory mediators in tracheobronchial aspirates of preterm infants at risk for chronic lung disease. J Pediatr. (1993) 122:938–44. doi: 10.1016/S0022-3476(09)90024-5

PubMed Abstract | Crossref Full Text | Google Scholar

129. Fowden AL and Forhead AJ. Endocrine interactions in the control of fetal growth. In: Bhatia J, Bhutta ZA, and Kalhan SC, editors. Maternal and child nutrition: the first 1000 days. Basel: Karger A.G. (2013) 91–102. doi: 10.1159/000348417

PubMed Abstract | Crossref Full Text | Google Scholar

130. Fowden AL, Valenzuela OA, Vaughan OR, Jellyman JK, and Forhead AJ. Glucocorticoid programming of intrauterine development. Domest Anim Endocrinol. (2016) 56:S121–32. doi: 10.1016/j.domaniend.2016.02.014

PubMed Abstract | Crossref Full Text | Google Scholar

131. Moss TJ, Sloboda DM, Gurrin LC, Harding R, Challis JR, and Newnham JP. Programming effects in sheep of prenatal growth restriction and glucocorticoid exposure. Am J Physiol Regul Integr Comp Physiol. (2001) 281:R960–70. doi: 10.1152/ajpregu.2001.281.3.R960

PubMed Abstract | Crossref Full Text | Google Scholar

132. Ikegami M, Jobe AH, Newnham J, Polk DH, Willet KE, and Sly P. Repetitive prenatal glucocorticoids improve lung function and decrease growth in preterm lambs. Am J Respir Crit Care Med. (1997) 156:178–84. doi: 10.1164/ajrccm.156.1.9612036

PubMed Abstract | Crossref Full Text | Google Scholar

133. Pratt L, Magness RR, Phernetton T, Hendricks SK, Abbott DH, and Bird IM. Repeated use of betamethasone in rabbits: effects of treatment variation on adrenal suppression, pulmonary maturation, and pregnancy outcome. Am J Obstet Gynecol. (1999) 180:995–1005. doi: 10.1016/S0002-9378(99)70672-1

PubMed Abstract | Crossref Full Text | Google Scholar

134. Frank L and Roberts RJ. Effects of low-dose prenatal corticosteroid administration on the premature rat. Neonatology. (1979) 36:1–9. doi: 10.1159/000241200

PubMed Abstract | Crossref Full Text | Google Scholar

135. Jobe AH, Wada N, Berry LM, Ikegami M, and Ervin MG. Single and repetitive maternal glucocorticoid exposures reduce fetal growth in sheep. Am J Obstet Gynecol. (1998) 178:880–5. doi: 10.1016/S0002-9378(98)70518-6

PubMed Abstract | Crossref Full Text | Google Scholar

136. Sloboda D and Newnham J. Challis. Effects of repeated maternal betamethasone administration on growth and hypothalamic-pituitary-adrenal function of the ovine fetus at term. J Endocrinol. (2000) 165:79–91. doi: 10.1677/joe.0.1650079

PubMed Abstract | Crossref Full Text | Google Scholar

137. Johnson JW, Mitzner W, London WT, Palmer AE, and Scott R. Betamethasone and the Rhesus fetus: multisystemic effects. Am J Obstet Gynecol. (1979) 133:677–84. doi: 10.1016/0002-9378(79)90018-8

PubMed Abstract | Crossref Full Text | Google Scholar

138. Johnson JW, Mitzner W, Beck JC, London WT, Sly DL, Lee PA, et al. Long-term effects of betamethasone on fetal development. Am J Obstet Gynecol. (1981) 141:1053–64. doi: 10.1016/s0002-9378(16)32697-7

PubMed Abstract | Crossref Full Text | Google Scholar

139. Novy MJ and Walsh SW. Dexamethasone and estradiol treatment in pregnant Rhesus macaques: effects on gestational length, maternal plasma hormones, and fetal growth. Am J Obstet Gynecol. (1983) 145:920–30. doi: 10.1016/0002-9378(83)90841-4

PubMed Abstract | Crossref Full Text | Google Scholar

140. Davis EP, Waffarn F, Uy C, Hobel CJ, Glynn LM, and Sandman CA. Effect of prenatal glucocorticoid treatment on size at birth among infants born at term gestation. J Perinatol. (2009) 29:731–7. doi: 10.1038/jp.2009.85

PubMed Abstract | Crossref Full Text | Google Scholar

141. Kelly HW, Sternberg AL, Lescher R, Fuhlbrigge AL, Williams P, Zeiger RS, et al. Effect of inhaled glucocorticoids in childhood on adult height. N Engl J Med. (2012) 367:904–12. doi: 10.1056/NEJMoa1203229

PubMed Abstract | Crossref Full Text | Google Scholar

142. Begemann M, Zirn B, Santen G, Wirthgen E, Soellner L, Büttel HM, et al. Paternally inherited IGF2 mutation and growth restriction. N Engl J Med. (2015) 373:349–56. doi: 10.1056/NEJMoa1415227

PubMed Abstract | Crossref Full Text | Google Scholar

143. Constância M, Hemberger M, Hughes J, Dean W, Ferguson-Smith A, Fundele R, et al. Placental-specific IGF-II is a major modulator of placental and fetal growth. Nature. (2002) 417:945–8. doi: 10.1038/nature00819

PubMed Abstract | Crossref Full Text | Google Scholar

144. Li J, Saunders JC, Gilmour RS, Silver M, and Fowden AL. Insulin-like growth factor-II messenger ribonucleic acid expression in fetal tissues of the sheep during late gestation: effects of cortisol. Endocrinology. (1993) 132:2083–9. doi: 10.1210/endo.132.5.8477658

PubMed Abstract | Crossref Full Text | Google Scholar

145. Cianfarani S, Germani D, Rossi L, Argirò G, Boemi S, Lemon M, et al. IGF-I and IGF-binding protein-1 are related to cortisol in human cord blood. Eur J Endocrinol. (1998) 138:524–9. doi: 10.1530/eje.0.1380524

PubMed Abstract | Crossref Full Text | Google Scholar

146. Arias A, Schander JA, Bariani MV, Correa F, Domínguez Rubio AP, Cella M, et al. Dexamethasone-induced intrauterine growth restriction modulates expression of placental vascular growth factors and fetal and placental growth. Mol Hum Reprod. (2021) 27:gaab006. doi: 10.1093/molehr/gaab006

PubMed Abstract | Crossref Full Text | Google Scholar

147. Ain R, Canham LN, and Soares MJ. Dexamethasone-induced intrauterine growth restriction impacts the placental prolactin family, insulin-like growth factor-II and the Akt signaling pathway. J Endocrinol. (2005) 185:253–63. doi: 10.1677/joe.1.06039

PubMed Abstract | Crossref Full Text | Google Scholar

148. Wolfgram PM and Allen DB. Factors influencing growth effects of inhaled corticosteroids in children. J Allergy Clin Immunol. (2015) 136:1711–2.e2. doi: 10.1016/j.jaci.2015.09.039

PubMed Abstract | Crossref Full Text | Google Scholar

149. Tronche F, Kellendonk C, Kretz O, Gass P, Anlag K, Orban PC, et al. Disruption of the glucocorticoid receptor gene in the nervous system results in reduced anxiety. Nat Genet. (1999) 23:99–103. doi: 10.1038/12703

PubMed Abstract | Crossref Full Text | Google Scholar

150. Boyle MP, Brewer JA, Funatsu M, Wozniak DF, Tsien JZ, Izumi Y, et al. Acquired deficit of forebrain glucocorticoid receptor produces depression-like changes in adrenal axis regulation and behavior. Proc Natl Acad Sci USA. (2005) 102:473–8. doi: 10.1073/pnas.0406458102

PubMed Abstract | Crossref Full Text | Google Scholar

151. Boyle MP, Kolber BJ, Vogt SK, Wozniak DF, and Muglia LJ. Forebrain glucocorticoid receptors modulate anxiety-associated locomotor activation and adrenal responsiveness. J Neurosci. (2006) 26:1971–8. doi: 10.1523/JNEUROSCI.2173-05.2006

PubMed Abstract | Crossref Full Text | Google Scholar

152. Demir N and Demir R. Effects of maternal bilateral adrenalectomy on fetal rat cerebral cortex. Int J Neurosci. (2001) 111:21–38. doi: 10.3109/00207450108986550

PubMed Abstract | Crossref Full Text | Google Scholar

153. Trejo JL, Rúa C, Cuchillo I, and Machıín C. Calbindin-D28k- and astroglial protein-immunoreactivities, and ultrastructural differentiation in the prenatal rat cerebral cortex and hippocampus are affected by maternal adrenalectomy. Brain Res Dev Brain Res. (1998) 108:161–77. doi: 10.1016/S0165-3806(98)00047-9

PubMed Abstract | Crossref Full Text | Google Scholar

154. Malaeb SN and Stonestreet BS. Steroids and injury to the developing brain. Clin Perinatol. (2014) 41:191–208. doi: 10.1016/j.clp.2013.09.006

PubMed Abstract | Crossref Full Text | Google Scholar

155. Diaz R, Brown RW, and Seckl JR. Distinct ontogeny of glucocorticoid and mineralocorticoid receptor and 11β-hydroxysteroid dehydrogenase types I and II mRNAs in the fetal rat brain suggest a complex control of glucocorticoid actions. J Neurosci. (1998) 18:2570–80. doi: 10.1523/JNEUROSCI.18-07-02570.1998

PubMed Abstract | Crossref Full Text | Google Scholar

156. Sundberg M, Savola S, Hienola A, Korhonen L, and Lindholm D. Glucocorticoid hormones decrease proliferation of embryonic neural stem cells through ubiquitin-mediated degradation of cyclin D1. J Neurosci. (2006) 26:5402–10. doi: 10.1523/JNEUROSCI.4906-05.2006

PubMed Abstract | Crossref Full Text | Google Scholar

157. Kanagawa T, Tomimatsu T, Hayashi S, Shioji M, Fukuda H, Shimoya K, et al. The effects of repeated corticosteroid administration on the neurogenesis in the neonatal rat. Am J Obstet Gynecol. (2006) 194:231–8. doi: 10.1016/j.ajog.2005.06.015

PubMed Abstract | Crossref Full Text | Google Scholar

158. Duksal F, Kilic I, Tufan AC, and Akdogan I. Effects of different corticosteroids on the brain weight and hippocampal neuronal loss in rats. Brain Res. (2009) 1250:75–80. doi: 10.1016/j.brainres.2008.10.051

PubMed Abstract | Crossref Full Text | Google Scholar

159. Schlumbohm C, Schilg L, Fuchs E, Nau R, and Gerber J. Intrauterine exposure to dexamethasone impairs proliferation but not neuronal differentiation in the dentate gyrus of newborn common marmoset monkeys. Brain Pathol. (2006) 16:209–17. doi: 10.1111/j.1750-3639.2006.00021.x

PubMed Abstract | Crossref Full Text | Google Scholar

160. .

Google Scholar

161. Moors M, Bose R, Johansson-Haque K, Edoff K, Okret S, and Ceccatelli S. Dickkopf 1 mediates glucocorticoid-induced changes in human neural progenitor cell proliferation and differentiation. Toxicol Sci. (2012) 125:488–95. doi: 10.1093/toxsci/kfr304

PubMed Abstract | Crossref Full Text | Google Scholar

162. Heine VM and Rowitch DH. Hedgehog signaling has a protective effect in glucocorticoid-induced mouse neonatal brain injury through an 11βHSD2-dependent mechanism. J Clin Invest. (2009) 119:267–77. doi: 10.1172/JCI36376

PubMed Abstract | Crossref Full Text | Google Scholar

163. Huang WL, Harper CG, Evans SF, Newnham JP, and Dunlop SA. Repeated prenatal corticosteroid administration delays astrocyte and capillary tight junction maturation in fetal sheep. Intl J Dev Neurosci. (2001) 19:487–93. doi: 10.1016/S0736-5748(01)00035-1

PubMed Abstract | Crossref Full Text | Google Scholar

164. Ninomiya E, Hattori T, Toyoda M, Umezawa A, Hamazaki T, and Shintaku H. Glucocorticoids promote neural progenitor cell proliferation derived from human induced pluripotent stem cells. Springerplus. (2014) 3:527. doi: 10.1186/2193-1801-3-527

PubMed Abstract | Crossref Full Text | Google Scholar

165. Krontira AC, Cruceanu C, Dony L, Kyrousi C, Link MH, Rek N, et al. Human cortical neurogenesis is altered via glucocorticoid-mediated regulation of ZBTB16 expression. Neuron. (2024) 112:1426–43.e11. doi: 10.1016/j.neuron.2024.02.005

PubMed Abstract | Crossref Full Text | Google Scholar

166. Ninan K, Liyanage SK, Murphy KE, Asztalos EV, and McDonald SD. Evaluation of long-term outcomes associated with preterm exposure to antenatal corticosteroids: a systematic review and meta-analysis. JAMA Pediatr. (2022) 176:e220483. doi: 10.1001/jamapediatrics.2022.0483

PubMed Abstract | Crossref Full Text | Google Scholar

167. Crowther CA, McKinlay CJ, Middleton P, and Harding JE. Repeat doses of prenatal corticosteroids for women at risk of preterm birth for improving neonatal health outcomes. Cochrane Database Syst Rev. (2015) 2015):CD003935. doi: 10.1002/14651858.CD003935.pub4

PubMed Abstract | Crossref Full Text | Google Scholar

168. Jenkinson AC, Kaltsogianni O, Dassios T, and Greenough A. Systematic review of the long-term effects of postnatal corticosteroids. J Perinat Med. (2023) 51:1120–8. doi: 10.1515/jpm-2023-0297

PubMed Abstract | Crossref Full Text | Google Scholar

169. Zia MTK, Vinukonda G, Vose LR, Bhimavarapu BBR, Iacobas S, Pandey NK, et al. Postnatal glucocorticoid-induced hypomyelination, gliosis, and neurologic deficits are dose-dependent, preparation-specific, and reversible. Exp Neurol. (2015) 263:200–13. doi: 10.1016/j.expneurol.2014.09.013

PubMed Abstract | Crossref Full Text | Google Scholar

170. Kinney HC. Human myelination and perinatal white matter disorders. J Neurol Sci. (2005) 228:190–2. doi: 10.1016/j.jns.2004.10.006

PubMed Abstract | Crossref Full Text | Google Scholar

171. Novak CM, Ozen M, and Burd I. Perinatal brain injury: mechanisms, prevention, and outcomes. Clin Perinatol. (2018) 45:357–75. doi: 10.1016/j.clp.2018.01.015

PubMed Abstract | Crossref Full Text | Google Scholar

172. Paez-Gonzalez P, Lopez-de-San-Sebastian J, Ceron-Funez R, Jimenez AJ, and Rodríguez-Perez LM. Therapeutic strategies to recover ependymal barrier after inflammatory damage: relevance for recovering neurogenesis during development. Front Neurosci. (2023) 17:1204197. doi: 10.3389/fnins.2023.1204197

PubMed Abstract | Crossref Full Text | Google Scholar

173. Vinukonda G, Dummula K, Malik S, Hu F, Thompson CI, Csiszar A, et al. Effect of prenatal glucocorticoids on cerebral vasculature of the developing brain. Stroke. (2010) 41:1766–73. doi: 10.1161/STROKEAHA.110.588400

PubMed Abstract | Crossref Full Text | Google Scholar

174. Ballabh P, Xu H, Hu F, Braun A, Smith K, Rivera A, et al. Angiogenic inhibition reduces germinal matrix hemorrhage. Nat Med. (2007) 13:477–85. doi: 10.1038/nm1558

PubMed Abstract | Crossref Full Text | Google Scholar

175. Erdmann G, Schütz G, and Berger S. Loss of Glucocorticoid receptor function in the pituitary results in early postnatal lethality. Endocrinology. (2008) 149:3446–51. doi: 10.1210/en.2007-1786

PubMed Abstract | Crossref Full Text | Google Scholar

176. Yang K, Challis JRG, Han VKM, and Hammond GL. Pro-opiomelanocortin messenger RNA levels increase in the fetal sheep pituitary during late gestation. J Endocrinol. (1991) 131:483–9. doi: 10.1677/joe.0.1310483

PubMed Abstract | Crossref Full Text | Google Scholar

177. Fletcher AJW, Gardner DS, Edwards CMB, Fowden AL, and Giussani DA. Cardiovascular and endocrine responses to acute hypoxaemia during and following dexamethasone infusion in the ovine fetus. J Physiol. (2003) 549:271–87. doi: 10.1113/jphysiol.2002.036418

PubMed Abstract | Crossref Full Text | Google Scholar

178. Davis EP, Waffarn F, and Sandman CA. Prenatal treatment with glucocorticoids sensitizes the HPA axis response to stress among full-term infants. Dev Psychobiol. (2011) 53:175–83. doi: 10.1002/dev.20510

PubMed Abstract | Crossref Full Text | Google Scholar

179. Ashwood PJ, Crowther CA, Willson KJ, Haslam RR, Kennaway DJ, Hiller JE, et al. Neonatal adrenal function after repeat dose prenatal corticosteroids: a randomized controlled trial. Am J Obstet Gynecol. (2006) 194:861–7. doi: 10.1016/j.ajog.2005.08.063

PubMed Abstract | Crossref Full Text | Google Scholar

180. Stoye DQ, Boardman JP, Osmond C, Sullivan G, Lamb G, Black GS, et al. Saliva cortisol diurnal variation and stress responses in term and preterm infants. Arch Dis Child Fetal Neonatal Ed. (2022) 107:558–64. doi: 10.1136/archdischild-2021-321593

PubMed Abstract | Crossref Full Text | Google Scholar

181. Weiss SJ, Keeton V, Richoux S, Cooper B, and Niemann S. Exposure to antenatal corticosteroids and infant cortisol regulation. Psychoneuroendocrinology. (2023) 147:105960. doi: 10.1016/j.psyneuen.2022.105960

PubMed Abstract | Crossref Full Text | Google Scholar

182. Finken MJJ, van der Voorn B, Heijboer AC, de Waard M, van Goudoever JB, and Rotteveel J. Glucocorticoid programming in very preterm birth. Horm Res Paediatr. (2016) 85:221–31. doi: 10.1159/000443734

PubMed Abstract | Crossref Full Text | Google Scholar

183. Fernandez EF and Watterberg KL. Relative adrenal insufficiency in the preterm and term infant. J Perinatol. (2009) 29:S44–9. doi: 10.1038/jp.2009.24

PubMed Abstract | Crossref Full Text | Google Scholar

184. Quintos JB and Boney CM. Transient adrenal insufficiency in the premature newborn. Curr Opin Endocrinol Diabetes Obes. (2010) 17:8–12. doi: 10.1097/MED.0b013e32833363cc

PubMed Abstract | Crossref Full Text | Google Scholar

185. Rog-Zielinska EA, Thomson A, Kenyon CJ, Brownstein DG, Moran CM, Szumska D, et al. Glucocorticoid receptor is required for foetal heart maturation. Hum Mol Genet. (2013) 22:3269–82. doi: 10.1093/hmg/ddt182

PubMed Abstract | Crossref Full Text | Google Scholar

186. Jellyman JK, Fletcher AJW, Fowden AL, and Giussani DA. Glucocorticoid maturation of fetal cardiovascular function. Trends Mol Med. (2020) 26:170–84. doi: 10.1016/j.molmed.2019.09.005

PubMed Abstract | Crossref Full Text | Google Scholar

187. Rog-Zielinska EA, Richardson RV, Denvir MA, and Chapman KE. Glucocorticoids and foetal heart maturation; implications for prematurity and foetal programming. J Mol Endocrinol. (2014) 52:R125–35. doi: 10.1530/JME-13-0204

PubMed Abstract | Crossref Full Text | Google Scholar

188. Fletcher AJW, Gardner DS, Edwards CMB, Fowden AL, and Giussani DA. Development of the ovine fetal cardiovascular defense to hypoxemia towards full term. Am J Physiol Heart Circ Physiol. (2006) 291:H3023–34. doi: 10.1152/ajpheart.00504.2006

PubMed Abstract | Crossref Full Text | Google Scholar

189. Boscarino G, Cardilli V, Conti MG, Liguori F, Repole P, Parisi P, et al. Outcomes of postnatal systemic corticosteroids administration in ventilated preterm newborns: a systematic review of randomized controlled trials. Front Pediatr. (2024) 12:1344337. doi: 10.3389/fped.2024.1344337

PubMed Abstract | Crossref Full Text | Google Scholar

190. Clyman RI, Mauray F, Roman C, Heymann MA, Ballard PL, Rudolph AM, et al. Effects of antenatal glucocorticoid administration on ductus arteriosus of preterm lambs. Am J Physiol Heart Circ Physiol. (1981) 241:H415–20. doi: 10.1152/ajpheart.1981.241.3.H415

PubMed Abstract | Crossref Full Text | Google Scholar

191. Shelton EL, Waleh N, Plosa EJ, Benjamin JT, Milne GL, Hooper CW, et al. Effects of antenatal betamethasone on preterm human and mouse ductus arteriosus: comparison with baboon data. Pediatr Res. (2018) 84:458–65. doi: 10.1038/s41390-018-0006-z

PubMed Abstract | Crossref Full Text | Google Scholar

192. Zhao C, He L, Li L, Deng F, Zhang M, Wang C, et al. Prenatal glucocorticoids exposure and adverse cardiovascular effects in offspring. Front Endocrinol. (2024) 15:1430334. doi: 10.3389/fendo.2024.1430334

PubMed Abstract | Crossref Full Text | Google Scholar

193. Lu L, Lu J, Yu Y, and Claud E. Necrotizing enterocolitis intestinal barrier function protection by antenatal dexamethasone and surfactant-D in a rat model. Pediatr Res. (2021) 90:768–75. doi: 10.1038/s41390-020-01334-0

PubMed Abstract | Crossref Full Text | Google Scholar

194. Narum S, Westergren T, and Klemp M. Corticosteroids and risk of gastrointestinal bleeding: a systematic review and meta-analysis. BMJ Open. (2014) 4:e004587. doi: 10.1136/bmjopen-2013-004587

PubMed Abstract | Crossref Full Text | Google Scholar

195. Opherk C, Tronche F, Kellendonk C, Kohlmüller D, Schulze A, Schmid W, et al. Inactivation of the glucocorticoid receptor in hepatocytes leads to fasting hypoglycemia and ameliorates hyperglycemia in streptozotocin-induced diabetes mellitus. Mol Endocrinol. (2004) 18:1346–53. doi: 10.1210/me.2003-0283

PubMed Abstract | Crossref Full Text | Google Scholar

196. Zhang D, Liu K, Hu W, Lu X, Li L, Zhang Q, et al. Prenatal dexamethasone exposure caused fetal rats liver dysplasia by inhibiting autophagy-mediated cell proliferation. Toxicology. (2021) 449:152664. doi: 10.1016/j.tox.2020.152664

PubMed Abstract | Crossref Full Text | Google Scholar

197. Massmann GA, Zhang J, Rose JC, and Figueroa JP. Acute and long-term effects of clinical doses of antenatal glucocorticoids in the developing fetal sheep kidney. J Soc Gynecol Investig. (2006) 13:174–80. doi: 10.1016/j.jsgi.2006.01.005

PubMed Abstract | Crossref Full Text | Google Scholar

198. Goodwin JE, Zhang J, Velazquez H, and Geller DS. The glucocorticoid receptor in the distal nephron is not necessary for the development or maintenance of dexamethasone-induced hypertension. Biochem Biophys Res Commun. (2010) 394:266–71. doi: 10.1016/j.bbrc.2010.02.123

PubMed Abstract | Crossref Full Text | Google Scholar

199. Moritz KM, De Matteo R, Dodic M, Jefferies AJ, Arena D, Wintour EM, et al. Prenatal glucocorticoid exposure in the sheep alters renal development in utero: implications for adult renal function and blood pressure control. Am J Physiol Regul Integr Comp Physiol. (2011) 301:R500–9. doi: 10.1152/ajpregu.00818.2010

PubMed Abstract | Crossref Full Text | Google Scholar

200. Forhead AJ, Jellyman JK, De Blasio MJ, Johnson E, Giussani DA, Broughton Pipkin F, et al. Maternal dexamethasone treatment alters tissue and circulating components of the renin-angiotensin system in the pregnant ewe and fetus. Endocrinology. (2015) 156:3038–46. doi: 10.1210/en.2015-1197

PubMed Abstract | Crossref Full Text | Google Scholar

201. Solano ME, Holmes MC, Mittelstadt PR, Chapman KE, and Tolosa E. Antenatal endogenous and exogenous glucocorticoids and their impact on immune ontogeny and long-term immunity. Semin Immunopathol. (2016) 38:739–63. doi: 10.1007/s00281-016-0575-z

PubMed Abstract | Crossref Full Text | Google Scholar

202. Lindton B, Markling L, Ringdén O, and Westgren M. In vitro studies of haematopoietic colony-forming capacity of human fetal liver cells at exposure to cytotoxic and immunomodulatory drugs. Fetal Diagn Ther. (2002) 17:104–9. doi: 10.1159/000048018

PubMed Abstract | Crossref Full Text | Google Scholar

203. Igarashi H, Kouro T, Yokota T, Comp PC, and Kincade PW. Age and stage dependency of estrogen receptor expression by lymphocyte precursors. Proc Natl Acad Sci USA. (2001) 98:15131–6. doi: 10.1073/pnas.011513098

PubMed Abstract | Crossref Full Text | Google Scholar

204. O’Connor TG, Winter MA, Hunn J, Carnahan J, Pressman EK, Glover V, et al. Prenatal maternal anxiety predicts reduced adaptive immunity in infants. Brain Behav Immun. (2013) 32:21–8. doi: 10.1016/j.bbi.2013.02.002

PubMed Abstract | Crossref Full Text | Google Scholar

205. Slack MH. Acellular pertussis vaccine given by accelerated schedule: response of preterm infants. Arch Dis Child Fetal Neonatal Ed. (2004) 89:F57–60. doi: 10.1136/fn.89.1.F57

PubMed Abstract | Crossref Full Text | Google Scholar

206. Taves MD, Plumb AW, Sandkam BA, Ma C, van der Gugten JG, Holmes DT, et al. Steroid profiling reveals widespread local regulation of glucocorticoid levels during mouse development. Endocrinology. (2015) 156:511–22. doi: 10.1210/en.2013-1606

PubMed Abstract | Crossref Full Text | Google Scholar

207. Brandt JVD, Lühder F, McPherson KG, De Graaf KL, Tischner D, Wiehr S, et al. Enhanced glucocorticoid receptor signaling in T cells impacts thymocyte apoptosis and adaptive immune responses. Am J Pathol. (2007) 170:1041–53. doi: 10.2353/ajpath.2007.060804

PubMed Abstract | Crossref Full Text | Google Scholar

208. Diepenbruck I, Much CC, Krumbholz A, Kolster M, Thieme R, Thieme D, et al. Effect of prenatal steroid treatment on the developing immune system. J Mol Med. (2013) 91:1293–302. doi: 10.1007/s00109-013-1069-2

PubMed Abstract | Crossref Full Text | Google Scholar

209. Mittelstadt PR, Monteiro JP, and Ashwell JD. Thymocyte responsiveness to endogenous glucocorticoids is required for immunological fitness. J Clin Invest. (2012) 122:2384–94. doi: 10.1172/JCI63067

PubMed Abstract | Crossref Full Text | Google Scholar

210. Lu FWM, Yasutomo K, Goodman GB, McHeyzer-Williams LJ, McHeyzer-Williams MG, Germain RN, et al. Thymocyte resistance to glucocorticoids leads to antigen-specific unresponsiveness due to “holes” in the T cell repertoire. Immunity. (2000) 12:183–92. doi: 10.1016/S1074-7613(00)80171-5

PubMed Abstract | Crossref Full Text | Google Scholar

211. Tolosa E, King LB, and Ashwell JD. Thymocyte glucocorticoid resistance alters positive selection and inhibits autoimmunity and lymphoproliferative disease in MRL-mice. Immunity. (1998) 8:67–76. doi: 10.1016/S1074-7613(00)80459-8

PubMed Abstract | Crossref Full Text | Google Scholar

212. Vacchio MS, Lee JYM, and Ashwell JD. Thymus-derived glucocorticoids set the thresholds for thymocyte selection by inhibiting TCR-mediated thymocyte activation. J Immunol. (1999) 163:1327–33. doi: 10.4049/jimmunol.163.3.1327

PubMed Abstract | Crossref Full Text | Google Scholar

213. Pole JD, Mustard CA, To T, Beyene J, and Allen AC. Antenatal steroid therapy for fetal lung maturation: is there an association with childhood asthma? J Asthma. (2009) 46:47–52. doi: 10.1080/02770900802262795

PubMed Abstract | Crossref Full Text | Google Scholar

214. Tseng WN, Chen CC, Yu HR, Huang LT, and Kuo HC. Antenatal dexamethasone exposure in preterm infants is associated with allergic diseases and the mental development index in children. Int J Environ Res Public Health. (2016) 13:1206. doi: 10.3390/ijerph13121206

PubMed Abstract | Crossref Full Text | Google Scholar

215. Barker DJ, Osmond C, and Law CM. The intrauterine and early postnatal origins of cardiovascular disease and chronic bronchitis. J Epidemiol Community Health. (1989) 43:237–40. doi: 10.1136/jech.43.3.237

PubMed Abstract | Crossref Full Text | Google Scholar

216. Gluckman PD, Cutfield W, Hofman P, and Hanson MA. The fetal, neonatal, and infant environments—the long-term consequences for disease risk. Early Hum Dev. (2005) 81:51–9. doi: 10.1016/j.earlhumdev.2004.10.003

PubMed Abstract | Crossref Full Text | Google Scholar

217. Bertalan R, Patocs A, Vasarhelyi B, Treszl A, Varga I, Szabo E, et al. Association between birth weight in preterm neonates and the BclI polymorphism of the glucocorticoid receptor gene. J Steroid Biochem Mol Biol. (2008) 111:91–4. doi: 10.1016/j.jsbmb.2008.05.002

PubMed Abstract | Crossref Full Text | Google Scholar

218. Schreiner C, Schreiner F, Härtel C, Heckmann M, Heep A, Bartmann P, et al. Glucocorticoid receptor gene variants and neonatal outcome in very-low-birth-weight preterm infants. Neonatology. (2017) 111:22–9. doi: 10.1159/000446908

PubMed Abstract | Crossref Full Text | Google Scholar

219. Ogasawara K, Sato M, Hashimoto K, Imamura T, Go H, and Hosoya M. A polymorphism in the glucocorticoid receptor gene is associated with refractory hypotension in premature infants. Pediatr Neonatol. (2018) 59:251–7. doi: 10.1016/j.pedneo.2017.04.007

PubMed Abstract | Crossref Full Text | Google Scholar

220. Finken MJJ, Meulenbelt I, Dekker FW, Frölich M, Romijn JA, Slagboom PE, et al. The 23K variant of the R23K polymorphism in the glucocorticoid receptor gene protects against postnatal growth failure and insulin resistance after preterm birth. J Clin Endocrinol Metab. (2007) 92:4777–82. doi: 10.1210/jc.2007-1290

PubMed Abstract | Crossref Full Text | Google Scholar

221. Baas EM, Romijn M, van der Pal SM, Vrijlandt EJLE, Rotteveel J, Finken MJJ, et al. No association between glucocorticoid receptor polymorphisms and long-term respiratory outcome after very preterm birth. Endocrine. (2021) 73:226–9. doi: 10.1007/s12020-021-02672-7

PubMed Abstract | Crossref Full Text | Google Scholar

222. Haas DM, Lehmann AS, Skaar T, Philips S, McCormick CL, Beagle K, et al. The impact of drug metabolizing enzyme polymorphisms on outcomes after antenatal corticosteroid use. Am J Obstet Gynecol. (2012) 206:447. doi: 10.1016/j.ajog.2012.02.016

PubMed Abstract | Crossref Full Text | Google Scholar

223. Haas DM, Dantzer J, Lehmann AS, Philips S, Skaar TC, McCormick CL, et al. The impact of glucocorticoid polymorphisms on markers of neonatal respiratory disease after antenatal betamethasone administration. Am J Obstet Gynecol. (2013) 208:215.e1–6. doi: 10.1016/j.ajog.2012.12.031

PubMed Abstract | Crossref Full Text | Google Scholar

224. Hoffmeyer S, Burk O, Von Richter O, Arnold HP, Brockmöller J, Johne A, et al. Functional polymorphisms of the human multidrug-resistance gene: multiple sequence variations and correlation of one allele with P-glycoprotein expression and activity in vivo. Proc Natl Acad Sci USA. (2000) 97:3473–8. doi: 10.1073/pnas.97.7.3473

PubMed Abstract | Crossref Full Text | Google Scholar

225. Tao T, Lan J, Lukacs GL, Haché RJG, and Kaplan F. Importin 13 regulates nuclear import of the glucocorticoid receptor in airway epithelial cells. Am J Respir Cell Mol Biol. (2006) 35:668–80. doi: 10.1165/rcmb.2006-0073OC

PubMed Abstract | Crossref Full Text | Google Scholar

226. Raby BA, Van Steen K, Lasky-Su J, Tantisira K, Kaplan F, and Weiss ST. Importin-13 genetic variation is associated with improved airway responsiveness in childhood asthma. Respir Res. (2009) 10:67. doi: 10.1186/1465-9921-10-67

PubMed Abstract | Crossref Full Text | Google Scholar

227. Tantisira KG, Small KM, Litonjua AA, Weiss ST, and Liggett SB. Molecular properties and pharmacogenetics of a polymorphism of adenylyl cyclase type 9 in asthma: interaction between β-agonist and corticosteroid pathways. Hum Mol Genet. (2005) 14:1671–7. doi: 10.1093/hmg/ddi175

PubMed Abstract | Crossref Full Text | Google Scholar

228. Oretti C, Marino S, Mosca F, Colnaghi MR, De Iudicibus S, Drigo I, et al. Glutathione-S-transferase-P1 I105V polymorphism and response to antenatal betamethasone in the prevention of respiratory distress syndrome. Eur J Clin Pharmacol. (2009) 65:483–91. doi: 10.1007/s00228-009-0617-8

PubMed Abstract | Crossref Full Text | Google Scholar

229. Watson M. Human glutathione S-transferase P1 polymorphisms: relationship to lung tissue enzyme activity and population frequency distribution. Carcinogenesis. (1998) 19:275–80. doi: 10.1093/carcin/19.2.275

PubMed Abstract | Crossref Full Text | Google Scholar

230. Manar MH, Brown MR, Gauthier TW, and Brown LAS. Association of glutathione-S-transferase-P1 (GST-P1) polymorphisms with bronchopulmonary dysplasia. J Perinatol. (2004) 24:30–5. doi: 10.1038/sj.jp.7211020

PubMed Abstract | Crossref Full Text | Google Scholar

231. Chalfun G, Brasil AA, Paravidino VB, Soares-Lima SC, Lopes MSA, Salú MS, et al. NR3C1 gene methylation and cortisol levels in preterm and healthy full-term infants in the first 3 months of life. Epigenomics. (2022) 14:1545–57. doi: 10.2217/epi-2022-0444

PubMed Abstract | Crossref Full Text | Google Scholar

232. Labbe A, Grizard G, Dechelotte P, and Raynaud EJ. Glucocorticoid receptor concentrations in human lung at different growth stages. Pediatr Pulmonol. (1990) 9:140–5. doi: 10.1002/ppul.1950090304

PubMed Abstract | Crossref Full Text | Google Scholar

233. Rajatapiti P, Kester MHA, de Krijger RR, Rottier R, Visser TJ, and Tibboel D. Expression of glucocorticoid, retinoid, and thyroid hormone receptors during human lung development. J Clin Endocrinol Metab. (2005) 90:4309–14. doi: 10.1210/jc.2005-0556

PubMed Abstract | Crossref Full Text | Google Scholar

234. Bessler H, Straussberg R, Gurary N, Aloni D, and Sirota L. Effect of dexamethasone on IL-2 and IL-3 production by mononuclear cells in neonates and adults. Arch Dis Child Fetal Neonatal Ed. (1996) 75:F197–201. doi: 10.1136/fn.75.3.f197

PubMed Abstract | Crossref Full Text | Google Scholar

235. Bessler H, Mendel C, Straussberg R, Gurary N, Aloni D, and Sirota L. Effects of dexamethasone on IL-1β, IL-6, and TNF-α production by mononuclear cells of newborns and adults. Neonatology. (1999) 75:225–33. doi: 10.1159/000014099

PubMed Abstract | Crossref Full Text | Google Scholar

236. Bessler H, Kagazanov S, Punsky I, and Sirota L. Effect of dexamethasone on IL-10 and IL-12p40 production in newborns and adults. Neonatology. (2001) 80:262–6. doi: 10.1159/000047154

PubMed Abstract | Crossref Full Text | Google Scholar

237. Kerepesi T and Arany P. Low levels of glucocorticoid binding sites in circulating lymphocytes of premature infants suffering from hyaline membrane disease. J Steroid Biochem. (1985) 22:151–4. doi: 10.1016/0022-4731(85)90106-2

PubMed Abstract | Crossref Full Text | Google Scholar

238. de Vries-van de Vlugt BC, Lentjes EG, Romijn FP, Berger HM, and Massa GG. Glucocorticoid receptors in cord blood lymphocytes of healthy neonates and of preterms suffering from respiratory distress syndrome. Acta Paediatr. (1997) 86:1350–5. doi: 10.1111/j.1651-2227.1997.tb14912.x

PubMed Abstract | Crossref Full Text | Google Scholar

239. Go H, Sato M, Hashimoto K, Imamura T, Kaneko M, Sato T, et al. Glucocorticoid receptor expression in whole blood with preterm infants. J Pediatr Endocrinol Metab. (2013) 26:77–84. doi: 10.1515/jpem-2012-0170

PubMed Abstract | Crossref Full Text | Google Scholar

240. Yamamoto A, Motokura K, Iwanaga K, Niwa F, Takita J, and Kawai M. Glucocorticoid receptor expression pattern in very low-birth weight infants changes drastically within the first week of life. Horm Res Paediatr. (2023) 96:289–97. doi: 10.1159/000526915

PubMed Abstract | Crossref Full Text | Google Scholar

241. Saif Z, Hodyl NA, Stark MJ, Fuller PJ, Cole T, Lu N, et al. Expression of eight glucocorticoid receptor isoforms in the human preterm placenta vary with fetal sex and birthweight. Placenta. (2015) 36:723–30. doi: 10.1016/j.placenta.2015.05.001

PubMed Abstract | Crossref Full Text | Google Scholar

242. Demendi C, Börzsönyi B, Pajor A, Rigó J, Nagy ZB, Szentpéteri I, et al. Abnormal fetomaternal glucocorticoid metabolism in the background of premature delivery: placental expression patterns of the 11β-hydroxysteroid dehydrogenase 2 gene. Eur J Obstet Gynecol Reprod Biol. (2012) 165:210–4. doi: 10.1016/j.ejogrb.2012.08.009

PubMed Abstract | Crossref Full Text | Google Scholar

243. Johnson RF, Rennie N, Murphy V, Zakar T, Clifton V, and Smith R. Expression of glucocorticoid receptor messenger ribonucleic acid transcripts in the human placenta at term. J Clin Endocrinol Metab. (2008) 93:4887–93. doi: 10.1210/jc.2008-1077

PubMed Abstract | Crossref Full Text | Google Scholar

244. Saif Z, Hodyl NA, Hobbs E, Tuck AR, Butler MS, Osei-Kumah A, et al. The human placenta expresses multiple glucocorticoid receptor isoforms that are altered by fetal sex, growth restriction and maternal asthma. Placenta. (2014) 35:260–8. doi: 10.1016/j.placenta.2014.01.012

PubMed Abstract | Crossref Full Text | Google Scholar

245. Hodyl NA, Wyper H, Osei-Kumah A, Scott N, Murphy VE, Gibson P, et al. Sex-specific associations between cortisol and birth weight in pregnancies complicated by asthma are not due to differential glucocorticoid receptor expression. Thorax. (2010) 65:677–83. doi: 10.1136/thx.2009.123091

PubMed Abstract | Crossref Full Text | Google Scholar

246. Murphy VE, Gibson PG, Giles WB, Zakar T, Smith R, Bisits AM, et al. Maternal asthma is associated with reduced female fetal growth. Am J Respir Crit Care Med. (2003) 168:1317–23. doi: 10.1164/rccm.200303-374OC

PubMed Abstract | Crossref Full Text | Google Scholar

247. Mina TH, Räikkönen K, Riley SC, Norman JE, and Reynolds RM. Maternal distress associates with placental genes regulating fetal glucocorticoid exposure and IGF2: role of obesity and sex. Psychoneuroendocrinology. (2015) 59:112–22. doi: 10.1016/j.psyneuen.2015.05.004

PubMed Abstract | Crossref Full Text | Google Scholar

248. Ballard PL, Ballard RA, Granberg JP, Sniderman S, Gluckman PD, Kaplan SL, et al. Fetal sex and prenatal betamethasone therapy. J Pediatr. (1980) 97:451–4. doi: 10.1016/S0022-3476(80)80204-6

PubMed Abstract | Crossref Full Text | Google Scholar

249. Willet KE, Jobe AH, Ikegami M, Polk D, Newnham J, Kohan R, et al. Postnatal lung function after prenatal steroid treatment in sheep: effect of gender. Pediatr Res. (1997) 42:885–92. doi: 10.1203/00006450-199712000-00027

PubMed Abstract | Crossref Full Text | Google Scholar

250. Imamura T, Sato M, Hashimoto K, Ishii T, Goto A, Go H, et al. Glucocorticoid receptor expression and cortisol level in cord blood of term infants. J Matern Fetal Neonatal Med. (2011) 24:1312–6. doi: 10.3109/14767058.2010.548885

PubMed Abstract | Crossref Full Text | Google Scholar

251. Hodge KM, Zhabotynsky V, Burt AA, Carter BS, Fry RC, Helderman J, et al. Epigenetic associations in HPA axis genes related to bronchopulmonary dysplasia and antenatal steroids. Pediatr Res. (2024) 96:510–8. doi: 10.1038/s41390-024-03116-4

PubMed Abstract | Crossref Full Text | Google Scholar

252. Moisiadis VG and Matthews SG. Glucocorticoids and fetal programming part 1: outcomes. Nat Rev Endocrinol. (2014) 10:391–402. doi: 10.1038/nrendo.2014.73

PubMed Abstract | Crossref Full Text | Google Scholar

253. Volqvartz T, Andersen HHB, Pedersen LH, and Larsen A. Obesity in pregnancy—long-term effects on offspring hypothalamic-pituitary-adrenal axis and associations with placental cortisol metabolism: a systematic review. Eur J Neurosci. (2023) 58:4393–422. doi: 10.1111/ejn.16184

PubMed Abstract | Crossref Full Text | Google Scholar

254. Lamadé EK, Hendlmeier F, Wudy SA, Witt SH, Rietschel M, Coenen M, et al. Rhythm of fetoplacental 11β-hydroxysteroid dehydrogenase type 2 — fetal protection from morning maternal glucocorticoids. J Clin Endocrinol Metab. (2021) 106:1630–6. doi: 10.1210/clinem/dgab113

PubMed Abstract | Crossref Full Text | Google Scholar

255. Słabuszewska-Jóżwiak A, Włodarczyk M, Kilian K, Rogulski Z, Ciebiera M, Szymańska-Majchrzak J, et al. Does the caesarean section impact on 11β HSD2 and fetal cortisol? Int J Environ Res Public Health. (2020) 17:5566. doi: 10.3390/ijerph17155566

PubMed Abstract | Crossref Full Text | Google Scholar

256. Berglund SK, García-Valdés L, Torres-Espinola FJ, Segura MT, Martínez-Zaldívar C, Aguilar MJ, et al. Maternal, fetal and perinatal alterations associated with obesity, overweight and gestational diabetes: an observational cohort study (PREOBE). BMC Public Health. (2016) 16:207. doi: 10.1186/s12889-016-2809-3

PubMed Abstract | Crossref Full Text | Google Scholar

257. Stirrat LI, Just G, Homer NZM, Andrew R, Norman JE, and Reynolds RM. Glucocorticoids are lower at delivery in maternal, but not cord blood of obese pregnancies. Sci Rep. (2017) 7:10263. doi: 10.1038/s41598-017-10266-5

PubMed Abstract | Crossref Full Text | Google Scholar

258. Johns EC, Denison FC, and Reynolds RM. The impact of maternal obesity in pregnancy on placental glucocorticoid and macronutrient transport and metabolism. Biochim Biophys Acta Mol Basis Dis. (2020) 1866:165374. doi: 10.1016/j.bbadis.2018.12.025

PubMed Abstract | Crossref Full Text | Google Scholar

259. Mata-Greenwood E, Stewart JM, Steinhorn RH, and Pearce WJ. Role of BCL2-associated athanogene 1 in differential sensitivity of human endothelial cells to glucocorticoids. Arterioscler Thromb Vasc Biol. (2013) 33:1046–55. doi: 10.1161/ATVBAHA.113.301247

PubMed Abstract | Crossref Full Text | Google Scholar

260. Mata-Greenwood E, Chow WL, Anti NAO, Sands LD, Adeoye O, Ford SP, et al. Dysregulation of glucocorticoid receptor homeostasis and glucocorticoid-associated genes in umbilical cord endothelial cells of diet-induced obese pregnant sheep. Int J Mol Sci. (2024) 25:2311. doi: 10.3390/ijms25042311

PubMed Abstract | Crossref Full Text | Google Scholar

261. Ghnenis AB, Odhiambo JF, McCormick RJ, Nathanielsz PW, and Ford SP. Maternal obesity in the ewe increases cardiac ventricular expression of glucocorticoid receptors, proinflammatory cytokines and fibrosis in adult male offspring. PloS One. (2017) 12:e0189977. doi: 10.1371/journal.pone.0189977

PubMed Abstract | Crossref Full Text | Google Scholar

262. Mata-Greenwood E, Jackson PN, Pearce WJ, and Zhang L. Endothelial glucocorticoid receptor promoter methylation according to dexamethasone sensitivity. J Mol Endocrinol. (2015) 55:133–46. doi: 10.1530/JME-15-0124

PubMed Abstract | Crossref Full Text | Google Scholar

263. Carpenter JR, Jablonski KA, Koncinsky J, Varner MW, Gyamfi-Bannerman C, Joss-Moore LA, et al. Antenatal steroids and cord blood T-cell glucocorticoid receptor DNA methylation and exon 1 splicing. Reprod Sci. (2022) 29:1513–23. doi: 10.1007/s43032-022-00859-5

PubMed Abstract | Crossref Full Text | Google Scholar

264. Saugstad OD, Kwinta P, Wollen EJ, Bik-Multanowski M, Madetko-Talowska A, Jagła M, et al. Impact of antenatal glucocorticosteroids on whole-genome expression in preterm babies. Acta Paediatr. (2013) 102:349–55. doi: 10.1111/apa.12166

PubMed Abstract | Crossref Full Text | Google Scholar

265. Amiya RM, Mlunde LB, Ota E, Swa T, Oladapo OT, and Mori R. Antenatal corticosteroids for reducing adverse maternal and child outcomes in special populations of women at risk of imminent preterm birth: a systematic review and meta-analysis. PloS One. (2016) 11:e0147604. doi: 10.1371/journal.pone.0147604

PubMed Abstract | Crossref Full Text | Google Scholar

266. Saito K, Nishimura E, Ota E, Namba F, Swa T, Ramson J, et al. Antenatal corticosteroids in specific groups at risk of preterm birth: a systematic review. BMJ Open. (2023) 13:e065070. doi: 10.1136/bmjopen-2022-065070

PubMed Abstract | Crossref Full Text | Google Scholar

267. Baud O and Berkane N. Hormonal changes associated with intra-uterine growth restriction: impact on the developing brain and future neurodevelopment. Front Endocrinol. (2019) 10:179. doi: 10.3389/fendo.2019.00179

PubMed Abstract | Crossref Full Text | Google Scholar

268. Malhotra A, Allison BJ, Castillo-Melendez M, Jenkin G, Polglase GR, and Miller SL. Neonatal morbidities of fetal growth restriction: pathophysiology and impact. Front Endocrinol. (2019) 10:55. doi: 10.3389/fendo.2019.00055

PubMed Abstract | Crossref Full Text | Google Scholar

269. Iwata S, Kinoshita M, Okamura H, Tsuda K, Saikusa M, Harada E, et al. Intrauterine growth and the maturation process of adrenal function. PeerJ. (2019) 7:e6368. doi: 10.7717/peerj.6368

PubMed Abstract | Crossref Full Text | Google Scholar

270. Aoki M, Urakami T, Nagano N, Aoki R, and Morioka I. Association of plasma cortisol levels with gestational age and anthropometric values at birth in preterm infants. Int J Environ Res Public Health. (2022) 19:11448. doi: 10.3390/ijerph191811448

PubMed Abstract | Crossref Full Text | Google Scholar

271. Economides DL, Nicolaides KH, Linton EA, Perry LA, and Chard T. Plasma cortisol and adrenocorticotropin in appropriate and small for gestational age fetuses. Fetal Diagn Ther. (1988) 3:158–64. doi: 10.1159/000263348

PubMed Abstract | Crossref Full Text | Google Scholar

272. Goland RS, Jozak S, Warren WB, Conwell IM, Stark RI, and Tropper PJ. Elevated levels of umbilical cord plasma corticotropin-releasing hormone in growth-retarded fetuses. J Clin Endocrinol Metab. (1993) 77:1174–9. doi: 10.1210/jcem.77.5.8077309

PubMed Abstract | Crossref Full Text | Google Scholar

273. Strinic T, Roje D, Marusic J, and Capkun V. Cord blood cortisol level is lower in growth-restricted newborns. J Obstet Gynaecol. (2007) 33:144–50. doi: 10.1111/j.1447-0756.2007.00493.x

PubMed Abstract | Crossref Full Text | Google Scholar

274. Nieto-Diaz A, Villar J, Matorras-Weinig R, and Valenzuela-Ruiz P. Intrauterine growth retardation at term: association between anthropometric and endocrine parameters. Acta Obstet Gynecol Scand. (1996) 75:127–31. doi: 10.3109/00016349609033303

PubMed Abstract | Crossref Full Text | Google Scholar

275. Sharma D, Shastri S, and Sharma P. Intrauterine growth restriction: antenatal and postnatal aspects. Clin Med Insights Pediatr. (2016) 10:67–83. doi: 10.4137/CMPed.S40070

PubMed Abstract | Crossref Full Text | Google Scholar

276. Bolt RJ, van Weissenbruch MM, Lafeber HN, and Delemarre-van de Waal HA. Development of the hypothalamic-pituitary-adrenal axis in the fetus and preterm infant. J Pediatr Endocrinol Metab. (2002) 15:759–69. doi: 10.1515/jpem.2002.15.6.759

PubMed Abstract | Crossref Full Text | Google Scholar

277. Schäffer L, Müller-Vizentini D, Burkhardt T, Rauh M, Ehlert U, and Beinder E. Blunted stress response in small for gestational age neonates. Pediatr Res. (2009) 65:231–5. doi: 10.1203/PDR.0b013e318191fb44

PubMed Abstract | Crossref Full Text | Google Scholar

278. Shams M, Kilby MD, Somerset DA, Howie AJ, Gupta A, Wood PJ, et al. 11Beta-hydroxysteroid dehydrogenase type 2 in human pregnancy and reduced expression in intrauterine growth restriction. Hum Reprod. (1998) 13:799–804. doi: 10.1093/humrep/13.4.799

PubMed Abstract | Crossref Full Text | Google Scholar

279. Dy J, Guan H, Sampath-Kumar R, Richardson BS, and Yang K. Placental 11β-hydroxysteroid dehydrogenase type 2 is reduced in pregnancies complicated with idiopathic intrauterine growth restriction: evidence that this is associated with an attenuated ratio of cortisone to cortisol in the umbilical artery. Placenta. (2008) 29:193–200. doi: 10.1016/j.placenta.2007.10.010

PubMed Abstract | Crossref Full Text | Google Scholar

280. Börzsönyi B, Demendi C, Pajor A, Rigó J, Marosi K, Ágota A, et al. Gene expression patterns of the 11β-hydroxysteroid dehydrogenase 2 enzyme in human placenta from intrauterine growth restriction: the role of impaired feto-maternal glucocorticoid metabolism. Eur J Obstet Gynecol Reprod Biol. (2012) 161:12–7. doi: 10.1016/j.ejogrb.2011.12.013

PubMed Abstract | Crossref Full Text | Google Scholar

281. McTernan CL, Draper N, Nicholson H, Chalder SM, Driver P, Hewison M, et al. Reduced placental 11β-hydroxysteroid dehydrogenase type 2 mRNA levels in human pregnancies complicated by intrauterine growth restriction: an analysis of possible mechanisms. J Clin Endocrinol Metab. (2001) 86:4979–83. doi: 10.1210/jcem.86.10.7893

PubMed Abstract | Crossref Full Text | Google Scholar

282. Zhao Y, Gong X, Chen L, Li L, Liang Y, Chen S, et al. Site-specific methylation of placental HSD11B2 gene promoter is related to intrauterine growth restriction. Eur J Hum Genet. (2014) 22:734–40. doi: 10.1038/ejhg.2013.226

PubMed Abstract | Crossref Full Text | Google Scholar

283. Hodyl NA, Stark MJ, Butler M, and Clifton VL. Placental P-glycoprotein is unaffected by timing of antenatal glucocorticoid therapy but reduced in SGA preterm infants. Placenta. (2013) 34:325–30. doi: 10.1016/j.placenta.2013.01.013

PubMed Abstract | Crossref Full Text | Google Scholar

284. Hutter S, Hepp P, Hofmann S, Kuhn C, Messner J, Andergassen U, et al. Glucocorticoid receptors α and β are modulated sex-specifically in human placentas of intrauterine growth restriction (IUGR). Arch Gynecol Obstet. (2019) 300:323–35. doi: 10.1007/s00404-019-05189-7

PubMed Abstract | Crossref Full Text | Google Scholar

285. Morrison JL, Botting KJ, Soo PS, McGillick EV, Hiscock J, Zhang S, et al. Antenatal steroids and the IUGR fetus: are exposure and physiological effects on the lung and cardiovascular system the same as in normally grown fetuses? J Pregnancy. (2012) 2012:1–15. doi: 10.1155/2012/839656

PubMed Abstract | Crossref Full Text | Google Scholar

286. Cock ML, Albuquerque CA, Joyce BJ, Hooper SB, and Harding R. Effects of intrauterine growth restriction on lung liquid dynamics and lung development in fetal sheep. Am J Obstet Gynecol. (2001) 184:209–16. doi: 10.1067/mob.2001.108858

PubMed Abstract | Crossref Full Text | Google Scholar

287. Gagnon R, Langridge J, Inchley K, Murotsuki J, and Possmayer F. Changes in surfactant-associated protein mRNA profile in growth-restricted fetal sheep. Am J Physiol Lung Cell Mol Physiol. (1999) 276:L459–65. doi: 10.1152/ajplung.1999.276.3.L459

PubMed Abstract | Crossref Full Text | Google Scholar

288. Orgeig S, Crittenden TA, Marchant C, McMillen IC, and Morrison JL. Intrauterine growth restriction delays surfactant protein maturation in the sheep fetus. Am J Physiol Lung Cell Mol Physiol. (2010) 298:L575–83. doi: 10.1152/ajplung.00226.2009

PubMed Abstract | Crossref Full Text | Google Scholar

289. Sutherland AE, Crossley KJ, Allison BJ, Jenkin G, Wallace EM, and Miller SL. The effects of intrauterine growth restriction and antenatal glucocorticoids on ovine fetal lung development. Pediatr Res. (2012) 71:689–96. doi: 10.1038/pr.2012.19

PubMed Abstract | Crossref Full Text | Google Scholar

290. Joseph JJ and Golden SH. Cortisol dysregulation: the bidirectional link between stress, depression, and type 2 diabetes mellitus. Ann N Y Acad Sci. (2017) 1391:20–34. doi: 10.1111/nyas.13217

PubMed Abstract | Crossref Full Text | Google Scholar

291. Roy M, Collier B, and Roy A. Hypothalamic-pituitary-adrenal axis dysregulation among diabetic outpatients. Psychiatry Res. (1990) 31:31–7. doi: 10.1016/0165-1781(90)90106-F

PubMed Abstract | Crossref Full Text | Google Scholar

292. AlShaibani T, Gherbal W, Almarabheh A, Rizk D, Esmaeel M, Alhouli R, et al. Relationship between the serum cortisol, insulin, adrenocorticotropic hormone (ACTH), and blood glucose levels of pregnant women with gestational diabetes mellitus in the Kingdom of Bahrain. Cureus. (2024) 16:e71782. doi: 10.7759/cureus.71782

PubMed Abstract | Crossref Full Text | Google Scholar

293. Tien Nguyen S, Bui Minh T, Trung Dinh H, Dinh Le T, Phi Thi Nguyen N, Tran TTH, et al. Relationship between maternal serum cortisol and maternal insulin resistance and fetal ultrasound characteristics in gestational diabetes mellitus. Diabetes Metab Syndr Obes. (2023) 16:365–72. doi: 10.2147/DMSO.S400995

PubMed Abstract | Crossref Full Text | Google Scholar

294. Panagiotou C, Lambadiari V, Maratou E, Geromeriati C, Artemiadis A, Dimitriadis G, et al. Insufficient glucocorticoid receptor signaling and flattened salivary cortisol profile are associated with metabolic and inflammatory indices in type 2 diabetes. J Endocrinol Invest. (2021) 44:37–48. doi: 10.1007/s40618-020-01260-2

PubMed Abstract | Crossref Full Text | Google Scholar

295. McGillick EV, Morrison JL, McMillen IC, and Orgeig S. Intrafetal glucose infusion alters glucocorticoid signaling and reduces surfactant protein mRNA expression in the lung of the late-gestation sheep fetus. Am J Physiol Regul Integr Comp Physiol. (2014) 307:R538–45. doi: 10.1152/ajpregu.00053.2014

PubMed Abstract | Crossref Full Text | Google Scholar

296. Carlson KS, Smith BT, and Post M. Insulin acts on the fibroblast to inhibit glucocorticoid stimulation of lung maturation. J Appl Physiol. (1984) 57:1577–9. doi: 10.1152/jappl.1984.57.5.1577

PubMed Abstract | Crossref Full Text | Google Scholar

297. Gravett MG, Hitti J, Hess DL, and Eschenbach DA. Intrauterine infection and preterm delivery: evidence for activation of the fetal hypothalamic-pituitary-adrenal axis. Am J Obstet Gynecol. (2000) 182:1404–13. doi: 10.1067/mob.2000.106180

PubMed Abstract | Crossref Full Text | Google Scholar

298. Miralles R, Hodge R, and Kotecha S. Fetal cortisol response to intrauterine microbial colonisation identified by the polymerase chain reaction and fetal inflammation. Arch Dis Child Fetal Neonatal Ed. (2008) 93:F51–4. doi: 10.1136/adc.2006.110130

PubMed Abstract | Crossref Full Text | Google Scholar

299. Johnstone JF, Bocking AD, Unlugedik E, and Challis JRG. The effects of chorioamnionitis and betamethasone on 11β hydroxysteroid dehydrogenase types 1 and 2 and the glucocorticoid receptor in preterm human placenta. J Soc Gynecol Investig. (2005) 12:238–45. doi: 10.1016/j.jsgi.2005.01.029

PubMed Abstract | Crossref Full Text | Google Scholar

300. Ling L-J, Zhou Q, Zhang F, Lei W-J, Li M-D, Lu J-W, et al. The dual role of glucocorticoid regeneration in inflammation at parturition. Front Immunol. (2024) 15:1459489. doi: 10.3389/fimmu.2024.1459489

PubMed Abstract | Crossref Full Text | Google Scholar

301. Watterberg KL, Demers LM, Scott SM, and Murphy S. Chorioamnionitis and early lung inflammation in infants in whom bronchopulmonary dysplasia develops. Pediatrics. (1996) 97:210–5.

PubMed Abstract | Google Scholar

302. Andrews WW, Goldenberg RL, Faye-Petersen O, Cliver S, Goepfert AR, and Hauth JC. The Alabama Preterm Birth study: polymorphonuclear and mononuclear cell placental infiltrations, other markers of inflammation, and outcomes in 23- to 32-week preterm newborn infants. Am J Obstet Gynecol. (2006) 195:803–8. doi: 10.1016/j.ajog.2006.06.083

PubMed Abstract | Crossref Full Text | Google Scholar

303. Lahra MM, Beeby PJ, and Jeffery HE. Maternal versus fetal inflammation and respiratory distress syndrome: a 10-year hospital cohort study. Arch Dis Child Fetal Neonatal Ed. (2009) 94:F13–6. doi: 10.1136/adc.2007.135889

PubMed Abstract | Crossref Full Text | Google Scholar

304. Ramsey PS, Lieman JM, Brumfield CG, and Carlo W. Chorioamnionitis increases neonatal morbidity in pregnancies complicated by preterm premature rupture of membranes. Am J Obstet Gynecol. (2005) 192:1162–6. doi: 10.1016/j.ajog.2004.11.035

PubMed Abstract | Crossref Full Text | Google Scholar

305. Hitti J, Krohn MA, Patton DL, Tarczy-Hornoch P, Hillier SL, Cassen EM, et al. Amniotic fluid tumor necrosis factor-α and the risk of respiratory distress syndrome among preterm infants. Am J Obstet Gynecol. (1997) 177:50–6. doi: 10.1016/S0002-9378(97)70437-X

PubMed Abstract | Crossref Full Text | Google Scholar

306. Speer CP. Neonatal respiratory distress syndrome: an inflammatory disease? Neonatology. (2011) 99:316–9. doi: 10.1159/000326619

PubMed Abstract | Crossref Full Text | Google Scholar

307. Jobe AH, Newnham JP, Willet KE, Moss TJ, Gore Ervin M, Padbury JF, et al. Endotoxin-induced lung maturation in preterm lambs is not mediated by cortisol. Am J Respir Crit Care Med. (2000) 162:1656–61. doi: 10.1164/ajrccm.162.5.2003044

PubMed Abstract | Crossref Full Text | Google Scholar

308. Schmidt AF, Kannan PS, Bridges J, Presicce P, Jackson CM, Miller LA, et al. Prenatal inflammation enhances antenatal corticosteroid–induced fetal lung maturation. JCI Insight. (2020) 5:e139452. doi: 10.1172/jci.insight.139452

PubMed Abstract | Crossref Full Text | Google Scholar

309. Willet KE, Jobe AH, Ikegami M, Newnham J, Brennan S, and Sly PD. Antenatal endotoxin and glucocorticoid effects on lung morphometry in preterm lambs. Pediatr Res. (2000) 48:782–8. doi: 10.1203/00006450-200012000-00014

PubMed Abstract | Crossref Full Text | Google Scholar

310. Villamor-Martinez E, Álvarez-Fuente M, Ghazi AMT, Degraeuwe P, Zimmermann LJI, Kramer BW, et al. Association of chorioamnionitis with bronchopulmonary dysplasia among preterm infants: a systematic review, meta-analysis, and metaregression. JAMA Netw Open. (2019) 2:e1914611. doi: 10.1001/jamanetworkopen.2019.14611

PubMed Abstract | Crossref Full Text | Google Scholar

311. Hartling L, Liang Y, and Lacaze-Masmonteil T. Chorioamnionitis as a risk factor for bronchopulmonary dysplasia: a systematic review and meta-analysis. Arch Dis Child Fetal Neonatal Ed. (2012) 97:F8–17. doi: 10.1136/adc.2010.210187

PubMed Abstract | Crossref Full Text | Google Scholar

312. Téblick A, Peeters B, Langouche L, and Van Den Berghe G. Adrenal function and dysfunction in critically ill patients. Nat Rev Endocrinol. (2019) 15:417–27. doi: 10.1038/s41574-019-0185-7

PubMed Abstract | Crossref Full Text | Google Scholar

313. Van Den Berghe G, Téblick A, Langouche L, and Gunst J. The hypothalamus-pituitary-adrenal axis in sepsis- and hyperinflammation-induced critical illness: gaps in current knowledge and future translational research directions. eBioMedicine. (2022) 84:104284. doi: 10.1016/j.ebiom.2022.104284

PubMed Abstract | Crossref Full Text | Google Scholar

314. Alder MN, Opoka AM, and Wong HR. The glucocorticoid receptor and cortisol levels in pediatric septic shock. Crit Care. (2018) 22:244. doi: 10.1186/s13054-018-2177-8

PubMed Abstract | Crossref Full Text | Google Scholar

315. Annane D. A 3-level prognostic classification in septic shock based on cortisol levels and cortisol response to corticotropin. JAMA. (2000) 283:1038. doi: 10.1001/jama.283.8.1038

PubMed Abstract | Crossref Full Text | Google Scholar

316. Elsheikh RM, Elmashad AM, Aboelenin AM, and Elrifaey SM. Relative adrenal insufficiency in full-term and preterm neonates with neonatal sepsis. Asian J Pediatr Res. (2024) 14:1–13. doi: 10.9734/ajpr/2024/v14i1314

Crossref Full Text | Google Scholar

317. Khashana A, Ojaniemi M, Leskinen M, Saarela T, and Hallman M. Term neonates with infection and shock display high cortisol precursors despite low levels of normal cortisol. Acta Paediatr. (2016) 105:154–8. doi: 10.1111/apa.13257

PubMed Abstract | Crossref Full Text | Google Scholar

318. Bhat V, Saini SS, Sachdeva N, Walia R, Sundaram V, and Dutta S. Adrenocortical dysfunctions in neonatal septic shock. Indian J Pediatr. (2022) 89:714–6. doi: 10.1007/s12098-021-03955-7

PubMed Abstract | Crossref Full Text | Google Scholar

319. Kumar N, Pol R, and Badakali A. Study of adrenal insufficiency in neonatal septic shock. EC Pediatr. (2023) 12:43–9.

Google Scholar

320. Prelipcean I, Wynn JL, Thompson L, Burchfield DJ, James-Woodley L, Chase PB, et al. Absence of relationship between serum cortisol and critical illness in premature infants. Arch Dis Child Fetal Neonatal Ed. (2021) 106:408–12. doi: 10.1136/archdischild-2020-319970

PubMed Abstract | Crossref Full Text | Google Scholar

321. Razik SA, Hashem HE, and Ahmed WO. New insight of adrenal responses in premature neonates versus full term neonates in critical care setting. Curr Pediatr Res. (2021) 25:1070–7.

Google Scholar

322. Jenniskens M, Weckx R, Dufour T, Vander Perre S, Pauwels L, Derde S, et al. The hepatic glucocorticoid receptor is crucial for cortisol homeostasis and sepsis survival in humans and male mice. Endocrinology. (2018) 159:2790–802. doi: 10.1210/en.2018-00344

PubMed Abstract | Crossref Full Text | Google Scholar

323. Cohen J, Pretorius CJ, Ungerer JPJ, Cardinal J, Blumenthal A, Presneill J, et al. Glucocorticoid sensitivity is highly variable in critically ill patients with septic shock and is associated with disease severity. Crit Care Med. (2016) 44:1034–41. doi: 10.1097/CCM.0000000000001633

PubMed Abstract | Crossref Full Text | Google Scholar

324. Shibata ARO, Troster EJ, and Wong HR. Glucocorticoid receptor expression in peripheral WBCs of critically ill children. Pediatr Crit Care Med. (2015) 16:e132–40. doi: 10.1097/PCC.0000000000000407

PubMed Abstract | Crossref Full Text | Google Scholar

325. Goodwin JE, Feng Y, Velazquez H, and Sessa WC. Endothelial glucocorticoid receptor is required for protection against sepsis. Proc Natl Acad Sci USA. (2013) 110:306–11. doi: 10.1073/pnas.1210200110

PubMed Abstract | Crossref Full Text | Google Scholar

326. Ataseven F, Salis O, Aygun C, Bedir A, and Kucukoduk S. Clinical significance of glucocorticoid receptor expression in premature infants with respiratory distress syndrome. J Matern Fetal Neonatal Med. (2017) 30:430–3. doi: 10.1080/14767058.2016.1174992

PubMed Abstract | Crossref Full Text | Google Scholar

327. Vassiliou AG, Floros G, Jahaj E, Stamogiannos G, Gennimata S, Vassiliadi DA, et al. Decreased glucocorticoid receptor expression during critical illness. Eur J Clin Invest. (2019) 49:e13073. doi: 10.1111/eci.1307

Crossref Full Text | Google Scholar