Abstract
Lung cancer is a major cause of cancer related mortality due to delayed diagnosis and limited therapeutic efficiency. Early detection and effective immune modulation are important to control lung cancer. Advancements in nanotechnology have improved oncology due to sensitive, specific, and minimally invasive detection platforms along with immune regulatory therapeutic approaches. Smart nanoplatforms fabricated with high precision and responsiveness have the ability to treat diseases as well as the immune system. These systems combine functional nanomaterials with biomolecular recognition elements to detect biomarkers such as exosomes, DNA, RNA, and proteins. They also facilitate targeted immune activation through checkpoint inhibition, nanovaccines, and tumor microenvironment reprogramming. Moreover, artificial intelligence and machine learning are enhancing the interpretation of complex data, which increases the diagnostic accuracy and predictive power. Despite advances in diagnostic and immune modulation, there are also several challenges related to biological barriers and biocompatibility. This review comprehensively explains the molecular basis of lung cancer, recent progress in nanotechnology based diagnostics and immunotherapy, and the design of multifunctional smart nanoplatforms. Future studies emphasize integrating personalized medicine, digital modeling, and bioinspired nanosystems for clinically translatable solutions in early lung cancer management.
1 Introduction
Cancer is a leading cause of death throughout the world, posing a significant threat to human life and health (Kumbrink et al., 2024; ). Lung cancer is one of the most challenging global health issues (Nokes et al., 2023; ). Main risk factors for lung cancer and other pulmonary disorders include tobacco use, ambient and household air pollution, asbestos exposure, and second-hand smoke continue to drive the high burden, especially in low and lower-middle-income countries, where regulatory resources and access to healthcare are more limited (Wang et al., 2024a; Wang et al., 2024b). Household air pollution from solid fuels has been shown to significantly contribute to tracheal, bronchial, and lung cancer (TBL) among people aged 55 and above (; Xing et al., 2025). Early detection is the single most important element of survival (). Yet, most patients are still diagnosed at last stages because population screening is limited, symptoms are nonspecific, and existing screening tools face cost, accessibility, and false positive limitations (Nooreldeen and Bach, 2021; ). At the molecular level, lung cancers are highly heterogeneous, driven by diverse genomic alterations and a suppressive tumor microenvironment that together complicate accurate early diagnosis and effective, durable therapy (Li et al., 2023). Immunotherapies have transformed care for subsets of patients, but primary and acquired resistance, variable biomarker performance, and immune related toxicities limit population level impact (Rother et al., 2024; Liu et al., 2025). Moreover, increasing environmental pollution is also a cause of lung complications in nonsmokers (Luo J. et al., 2025). Due to these clinical and epidemiologic challenges, there is an urgent need to develop sensitive, specific, and accessible approaches that can detect lung cancer earlier and safely modulate immunity. Nanotechnology, particularly smart multifunctional nanoplatforms that collectively work in targeted detection, signal amplification, controlled cargo release, and immune modulations are promising possibility to link diagnostics and therapy (Nooreldeen and Bach, 2021; ; Rother et al., 2024; Luo G. et al., 2025). Recent advancement in smart nanocarrier-based technologies considerably augmented the early detection and immune modulation strategies in lung cancer. Smart polymeric nanoparticles, especially PEGylated PLGA systems, showed great potential for targeted immune modulation by enhancing antigen presentation and reducing tumor-associated immune suppression (Zhang et al., 2022; Kesharwani et al., 2025). Similarly, lipid-based nanocarriers engineered with mannose or hyaluronic acid, such as hyaluronic acid-based polymer nanoparticles for tailored cancer therapy modifications, are capable of selectively targeting dendritic cells and tumor-associated macrophages, thus allowing for precise reprogramming of the tumor immune microenvironment (Paurević et al., 2024; Raval and Bhattacharya, 2025).
The immunotherapy, particularly immune checkpoint inhibitors (ICIs) targeting pathways such as PD-1/PD-L1 and CTLA-4, has become advanced in lung cancer management as it improves T-cell activation and also restores anti-tumor immune responses (). The ICIs have revealed many noteworthy survival benefits in subsets of patients that lead to their approval as first-line and second-line therapies in non-small cell lung cancer (Liao et al., 2022). However, the clinical response remains variable due to tumor immune escape mechanisms, limited T-cell infiltration, heterogeneous expression of immune biomarkers, and immunosuppressive tumor microenvironments (Wang J. et al., 2022). Therefore, understanding the biological principles of immune checkpoint regulation and recognizing strategies to improve ICI efficacy, such as improved biomarker identification, combination therapies, and advanced delivery systems, remains a critical direction in lung cancer research (Mc Neil and Lee, 2025).
Lung cancer is a deadly malignancy because most patients are diagnosed at late stages when treatment options are limited (Lin et al., 2023). Early detection of lung cancer not only improves treatment possibilities but also significantly increases survival rates by reducing morbidity (; Li et al., 2024a; Mohamed et al., 2024). Biomarkers present in blood, including circulating microRNAs, methylated cell-free DNA, proteins, autoantibodies, and extracellular vesicles, are emerging because these are less invasive for the early detection of lung cancer (; ; Ma et al., 2025). At the same time, immune evasion and dysregulation are considered among the major lung cancer progression. Modulation of the immune microenvironment through different therapies, such as cellular vaccines (DC, T-cell, NK), immune checkpoint inhibitors, and immune signatures, has promising clinical and preclinical results (Wang D.-R. et al., 2022; ). Recent studies showed that immune profiles and signatures can serve dual roles both as prognostic indicators as well as predictors of response to immunotherapy (Zhang et al., 2024a; ). So, integrating early detection with immune modulation offers a powerful dual approach to treat cancer at its most responsive stage and prevent its progression ().
Nanotechnology is reshaping cancer immunotherapy because nanomaterials can deliver antigens and adjuvants, reprogram suppressive tumor microenvironment (TME), and improve the safety and efficacy of immune checkpoint and vaccination strategies (Wang et al., 2025). The preclinical and early clinical studies showed that smart, stimuli-responsive carriers and surface-engineered vectors markedly enhance the tumor selectivity and therapeutic index (Nirmala et al., 2023).
Notably, the physicochemical properties of nanoplatforms, including particle size, shape, surface charge, and material composition, play critical roles in measuring how these systems interact with immune cells within the TME (Lee et al., 2023). Smaller nanoparticles can improve lymphatic drainage and enhance dendritic cell uptake that promotes more efficient antigen presentation, while positively charged or surface-modified materials can reprogram M2 tumor-associated macrophages toward a pro-inflammatory M1 phenotype (Wei et al., 2022; Zheng et al., 2023). In the same way, properly engineered nanomaterials can enhance CD8+ T-cell infiltration, stimulate dendritic cell maturation, and overcome immunosuppressive cytokine environments. Therefore, tailoring nanoplatform design according to these physicochemical features is essential for achieving successful immune activation and reversing tumor-driven immune tolerance. Despite these advances, clinical translation faces challenges including manufacturing, long-term stability, and gaps between animal models and human responses. Addressing these barriers is important to understand the clinical potential of cancer nanomedicine (Wang and Zhang, 2023).
This review aimed to focus on the advancements in smart nanoplatforms designed for the early detection and immune modulation of lung cancer. It provides an integrated overview of recent progress in nanotechnology-based diagnostic tools, biosensors, and immunotherapeutic delivery systems that enhance sensitivity, targeting, and therapeutic efficacy. It also discusses design strategies, mechanisms of immune regulation, and current translational challenges in lung cancer. By highlighting innovative approaches and future directions, this work seeks to identify how nanotechnology can bridge the gap between early diagnosis and effective immunotherapy for the treatment of lung cancer.
2 Biological and molecular basis of lung cancer
Lung cancer is not only due to malignant epithelial cells but by a complex and dynamic ecosystem of stromal, vascular, and immune components. All these systems collectively define disease progression, therapeutic response, and metastatic potential (; ). TME of lung cancer is characterized by hypoxia, aberrant vasculature, extracellular matrix remodeling, and an inflammatory situation that stimulates proliferation and resistance to therapy. These nonmalignant parts actively communicate with cancer cells via cytokines, growth factors, extracellular vesicles, and metabolic crosstalk that create spatial and temporal heterogeneity, which complicates the diagnosis and treatment process. Understanding these types of interactions is essential when designing nanoplatforms that must indicate, sense, or reprogram the lung TME ().
In lung cancer, hypoxic zones and abnormal vasculature decrease the oxygen and nutrient delivery, selecting for aggressive clones and impeding drug and nanoparticle penetration. Cancer associated fibroblasts and extracellular matrix hardening increase interstitial pressure and form physical barriers to delivery (). Together, these features produce gradients of pH, redox potential, and enzyme activity that smart nanoplatforms can exploit for triggered release or targeted imaging. The lung’s unique architecture (large surface area, dual blood supply, and alveolar immune surveillance) further shapes both local tumor evolution and nanoparticle biodistribution, requiring lung-adapted delivery strategies ().
2.1 Molecular biomarkers for early diagnosis and immune evasion mechanisms
Early detection relies increasingly on minimally invasive molecular biomarkers, which are detectable in blood, urine, or bronchoalveolar lavage. The main classes include circulating tumor DNA (ctDNA), circulating tumor cells (CTCs), tumor-derived extracellular vesicles/exosomes, and tumor-associated proteins and microRNAs. Advances in ultra-sensitive sequencing, PCR-based assays, and nanomaterial-enhanced biosensors have improved the limit of detection (LOD) for low burden disease (Kim and Park, 2023; ). The combined biomarker, such as ctDNA alongwith protein or extracellular vesicle (EV) signatures, shows greater sensitivity and specificity than single analytes. Recent studies reported that ctDNA assays, especially when paired with other markers or imaging, hold the most promise for early stage lung cancer screening and minimal residual disease surveillance, though sensitivity in stage I disease remains a challenge. Smart nanodiagnostic platforms can amplify these weak signals through molecular capture, signal transduction, and multiplexed readouts (Lam et al., 2024; Ma et al., 2024; Li et al., 2025).
Lung tumors employ multiple overlapping immune escape strategies. These strategies include upregulation of immune checkpoints (PD-L1/PD-1), polarization of immunosuppressive myeloid populations (tumour-associated macrophages, myeloid-derived suppressor cells), secretion of suppressive cytokines (TGF-β, IL-10), metabolic competition (tryptophan depletion via IDO, lactate accumulation), and shedding of PD-L1 on exosomes (Jeong et al., 2025). These mechanisms blunt cytotoxic T-cell function and reduce antigen presentation, which limits the responses to immunotherapy in many patients. Targeting or reprogramming suppressive elements, such as repolarizing tumor associated macrophages (TAMs), blocking exosomal PD-L1, or locally delivering checkpoint inhibitors with nanoparticles, represents a rational route to restore antitumor immunity while minimizing systemic toxicity (Lin X. et al., 2024; Lv et al., 2025). The summary of main biomarkers, nanoplatform designs, and diagnostic/therapeutic strategies for lung cancer are given in Table 1.
TABLE 1
| Biomarkers for early detection of lung cancer | |||||
|---|---|---|---|---|---|
| Biomarker | Source | Clinical relevance (stage/feature) | Detection platforms | Comments | References |
| ctDNA (driver mutations) | Plasma | Early mutation detection, (minimal residual disease) MRD | NGS, nanoparticle-based enrichment | LOD is improved with bead capture | Xie et al. (2023) |
| Exosomal miR-21 | Serum/plasma | Diagnostic/prognostic | Magnetic nanoparticle isolation, electrochemical sensor | Often enriched vs. total miRNA | |
| CEA (protein) | Serum | Common lung tumour marker | Gold nanoparticle immunosensor (colorimetric/SPR) | Limited specificity | Zhang et al. (2025b) |
| Circulating tumor cells (CTCs) | Blood | Metastatic potential | Microfluidic chip, antibody-functionalized NPs | Low abundance and enrichment is required | |
| Nanoplatform designs and immune-modulatory applications | |||||
|---|---|---|---|---|---|
| Nanoplatform | Core material | Immune target | Functional biomolecules | Advantage | |
| Lipid nanoparticle (LNP) | Lipid bilayer | Antigen delivery for T cell priming | Tumour neoantigen mRNA, adjuvant | Clinical precedence (mRNA LNPs) | (Kiaie et al., 2022) |
| Iron oxide NP | Fe3O4 | TAM repolarization, imaging | Toll-like receptor (TLR) agonist or small molecule repolarizer | Magnetic resonance imaging (MRI) visible; magnetic targeting possible | Wang et al. (2024d) |
| PLGA NP (polymeric) | PLGA | Local checkpoint blockade | Anti-PD-L1 siRNA | Controlled release; biodegradable | |
| Biomimetic exosome-mimic | Cell membrane-coated | Immune evasion neutralization | PD-L1 decoy peptides | Low immunogenicity; homotypic targeting | Srivastava et al. (2018) |
| Nanodiagnostic platform comparison | |||||
|---|---|---|---|---|---|
| Platform | Target analyte | Sensitivity | Throughput | Clinical readiness | |
| Plasmonic nanoparticle sensor | Proteins/EVs | pg/mL – ng/mL | Low – medium | Preclinical | Kiio et al. (2024) |
| Nanostructured electrochemical sensor | ctDNA/miRNA | aM – fM | Medium | Preclinical/early translational | |
| Microfluidic-NP CTC chip | CTCs | 1–10 cells/mL | Medium | Preclinical/early clinical | Huang et al. (2014) |
Summary of key biomarkers, nanoplatform designs, and diagnostic/therapeutic strategies for lung cancer.
3 Overview of nanotechnology in cancer research
Nanotechnology has improved oncology by enabling precise delivery, better diagnostics, and active modulation of the TME. Smart nanosystems engineered to sense local cues and respond with controlled release or signal generation are now central to efforts that push cancer care from empirical to precision paradigms. These multifunctional constructs combine targeting, imaging, and therapy to close the gap between early detection and effective, immune-aware treatment (Sun et al., 2023).
The evolution of nanomedicine spans simple drug loaded liposomes and polymeric carriers to advanced, stimulus responsive nanoplatforms and biomimetic systems. Early studies focused on improving pharmacokinetics and passive accumulation. The recent studies added active targeting (ligands, antibodies), controlled/triggered release (pH, enzymes, and redox), imaging labels, and immune modulatory cargos. Recently, lung cancer-focused work has emphasized route-specific delivery (including inhalable formulations), immune combination strategies, and modular platforms that permit rapid payload swapping for diagnostic or therapeutic functions ().
3.1 Design principles of smart nanoplatforms and classification of nanomaterials used in lung cancer
Smart nanoplatforms for the cancer diagnostics and therapy are engineered from interchangeable modules (core, payload, targeting ligand, and biomimetic shell) to allow tailored pharmacokinetics and multi functionality (Sun et al., 2023). TME cues pH, redox state, enzymes, and hypoxia are commonly exploited to trigger on-site drug release or immune stimulating activity, improving specificity and reducing off-target effects (Zhou W. et al., 2022). Stimuli-responsive polymers and nanogels enable controlled release kinetics and cargo protection (small molecules, nucleic acids, or adjuvants), supporting both early detection and immune modulation roles (). Biomimetic strategies (cell membrane coatings and exosomes) enhance circulation time and immune compatibility while enabling antigen presentation or immune cell targeting for vaccination or reprogramming (). Finally, modern designs emphasize TME remodeling and integrated theranostics to monitor response in real time, key for translation to lung cancer immunotherapy (Lu Q. et al., 2024). A stimulus-responsive drug delivery platform for the diagnosis and therapy of lung cancer is shown in Figure 1. In which oxygen and doxorubicin were loaded on nanodroplets, and high-intensity focused ultrasound (HIFU) was employed to trigger their controlled release while simultaneously enhancing ultrasound imaging for image-guided drug delivery. The application of mild temperature HIFU slightly increased the tumor temperature and improved local blood flow. As a result, ultrasound-induced oxygen release combined with moderate thermal elevation effectively alleviated tumor hypoxia and multidrug resistance. These synergistic effects significantly enhanced the therapeutic efficacy of doxorubicin against lung metastases (Lin et al., 2022). The nanomaterials used for lung cancer can be grouped into four major classes, each with distinct strengths and limitations for detection and immune modulation. A concise classification and representative examples of nanomaterials used for lung cancer are given in Table 2.
FIGURE 1
TABLE 2
| Class | Representative examples | Primary functions in lung cancer | Advantages | References |
|---|---|---|---|---|
| Organic | Liposomes, lipid nanoparticles, polymeric NPs (PLGA, PEGylated polymers) | Drug/siRNA delivery, inhalable formulations, vaccine delivery | Biodegradable, clinically validated platforms; easy payload loading | Kapoor, et al. (2025) |
| Inorganic | Gold, iron oxide, silica, quantum dots | Imaging contrast, photothermal/photodynamic therapy, and immune adjuvants | Strong physical properties (optical, magnetic); long persistence requires surface engineering | Wang et al. (2022c) |
| Hybrid | Lipid-inorganic, polymer-inorganic composites, mesoporous silica with polymer shells | Combined imaging, controlled release, targeting | Tunable multifunctionality; balance between stability and biodegradability | |
| Biomimetic | Cell membrane-coated NPs, exosome-mimetics | Immune-evasive delivery, antigen presentation, enhanced uptake by immune cells | Low immunogenicity, improved circulation and cell targeting; promising for immune modulation |
Classification of nanomaterials used in lung cancer.
4 Early detection in lung cancer by smart nanoplatforms
Early detection of lung cancer remains the single most important factor for survival. Smart nanoplatforms combine with nanoscale sensing materials, targeted contrast agents, miniaturized devices, and artificial intelligence (AI) driven data fusion to increase sensitivity and specificity. These features inhance the efficiency of biomarkers, circulating DNA and RNA, exosomes, proteins, and imaging signatures. Nanoplatforms aim to move diagnosis earlier in the disease timeline, as shown in Figure 2, by enabling low-volume sampling of blood, breath, saliva, point of care (POC) workflows, and multi modal data integration that can uncover subtle disease signals that are not possible by conventional assays (; Mikaeeli Kangarshahi et al., 2024; ).
FIGURE 2
Nanomaterial enabled biosensors, including electrochemical, optical, and chemiresistive types, have significantly enhanced detection sensitivity for circulating tumor biomarkers in lung cancer. New approaches, including nucleic acid hybridization sensors, nanoparticle augmented fluorescence assays, and plasmonic or exosome capture platforms, allow for precise identification of ctDNA, microRNA, and tumor derived exosomes at attomolar (10−18 M) to picomolar (10−12 M). These approaches required low sample volumes to support early molecular diagnosis and real time monitoring of disease, as shown in Figure 3 (Yang et al., 2024;
FIGURE 3

Current ctDNA precision oncology applications in Non-Small Cell Lung Cancer (NSCLC) (
TABLE 3
| Nanoplatform | Biomarker | Biological target | Sensitivity | References |
|---|---|---|---|---|
| High-throughput Nano-biochip Integrated System for Liquid Biopsy | EV membrane proteins (CD81, PDL1, GLIPR1, LBR and SFTPA1) | Plasma extracellular vesicle | AUC: 0.931 Sensitivity; 89.4% | |
| AI-assisted SERS profiling of plasma exosomes on plasmonic substrates | Exosome molecular | Plasma exosomes | AUC; 0.84, sensitivity; 83.3% | Lu et al. (2024a) |
| Multi-receptor SERS sensor (BC/AuNP film) | Exosome surface binding signatures | Plasma exosomes | Sensitivity; 90% | Lu et al. (2024b) |
| Electronic-nose; eNose (chemiresistive nanostructured sensor array) | VOC pattern signature (breath) | Exhaled breath | AUC; 0.89 Sensitivity; 0.90 | Lee et al. (2024) |
| Prospective eNose | VOC breath signature | Exhaled breath | --- | |
| Nanomaterial-assisted electrochemical platform (CM-OECATs nanocomposite) | Multiplex protein panel | Serum clinical samples | AUC; 0.9748 | Wan et al. (2024) |
| CRISPR-Cas12a enhanced electrochemical ctDNA sensor using MB/Fe3O4@COF/PdAu | EGFR L858R/EGFR activating mutations (ctDNA) | Plasma cfDNA/ctDNA | --- | Liu et al. (2022) |
| Exosomal miRNA panel (serum exosomes) using sequencing, qRT-PCR validation | Combined 3-miRNA panel (miR-200b-3p, miR-3124-5p, miR-92b-5p) | Serum exosomes | AUC; 0.93 | Kim et al. (2023) |
Summary of recent nanoplatforms for the early detection of lung cancer.
surface-enhanced Raman spectroscopy (SERS), gold nanoparticles onto bacterial cellulose (BC/Au NPs, film), CNT-doped MXene, incorporated into an organic electrochemical transistor aptamer sensor (CM-OECATs).
Nanotechnology provide targeted delivery for nearly every major medical imaging modality, enabling both improved detection sensitivity and molecular specificity in lung lesions. For example, iron oxide and gadolinium bearing nanostructures that enhance MRI signal in tumor microenvironments, radiolabeled nanoparticles for positron emission tomography (PET) that increase tumor to background contrast, and plasmonic or dye loaded nano systems for optical and photoacoustic imaging that allow high-resolution mapping of superficial or surgical specimens (
4.1 Point of care and wearable nano diagnostic technologies and artificial intelligence in nano diagnostics
POC wearable nano-diagnostic devices and POC biomedical sensors are transforming decentralized and rapid lung cancer screening by facilitating sensitive and real-time testing at the bedside. New nanotechnology breath-based chemiresistive sensor arrays and nose on chip systems employing functionalized nanomaterials can reliably identify volatile organic compounds (VOC) identifies unique to lung tumors, as a highly specific, noninvasive diagnosis (
Data integration and Artificial Intelligence (AI) have greatly improved the diagnosis of cancer. AI is revolutionizing how nano diagnostic results are interpreted and merged with clinical data. Machine learning algorithms enhance signal amplification from noisy outputs of nano-sensors, assist in multi-analyte signature classification, such as integrating ctDNA fragment patterns and VOC panels, and allow multimodal imaging, biomarker, and patient metadata fusion for enhancing diagnostic accuracy and risk stratification (
5 Nanotechnology driven immune modulation strategies
Recent developments in nanotechnology have transformed immune modulation strategies to boost anti-tumor immunity by targeted and controlled immune activation. Current research demonstrates that theranostic nanoparticles can simultaneously deliver diagnostic imaging and immunotherapeutic benefits and induce strong and focal immune stimulation in models of lung cancer (Muradova et al., 2025). These nanoplatforms are multifunctional in their ability to monitor therapeutic response in real time while activating immune effector cells within the tumor microenvironment. Inhalable drug delivery systems containing IL-12 mRNA in exosomes or nanobubbles have been very promising as it enables localized delivery to lung tissue, which leads to strong activation of the immune system with significantly reduced systemic toxicity and inflammatory side effects (Liu et al., 2024). In addition, nanomedicine platforms that utilize next-generation antigen based platforms are being engineered to improve the presentation of antigens, facilitate co-delivery of co-stimulatory adjuvants, and induce maturation of dendritic cells, important processes for initiating efficacious and personalized cancer immunotherapy (Lin L. et al., 2024). New advances in nano immunotherapy have also pointed towards opportunities for leveraging stimuli responsive processes, including pH or enzyme activated release, as well as immune checkpoint inhibitor co-delivery and tumor microenvironment modulation to help circumvent resistance to therapy (Wang et al., 2025). Recently, inhalational nanocarriers have received major attention because they bypass hepatic clearance and deliver immunomodulatory agents directly into lung tissues, thereby achieving much higher therapeutic concentrations with reduced systemic toxicities. The inhalable liposomal formulations of PD-L1 siRNA or STING agonists have shown potent immune activation in preclinical lung cancer models (Liu et al., 2019;
5.1 Immune checkpoint targeting using nanocarriers and nanovaccines and antigen delivery systems
Nanocarriers like lipid nanoparticles, polymeric particles, protein-based carriers, and hybrid nanosystems are under active development to improve targeted delivery of immune checkpoint inhibitors like anti-PD-1, PD-L1, and CTLA-4 antibodies, siRNA, and mRNA constructs directly to the TME (
Nanovaccines take advantage of advanced carrier systems such as liposomes, polymeric nanoparticles, virus-like particles, and self-assembling protein constructs to co-deliver tumor antigens in association with immunostimulatory adjuvants to improve antigen presentation and elicit potent T-cell activation (Zhang et al., 2019). These nanocarriers ensure the efficient engulfment by antigen presenting cells (APCs) and provide sustained, controlled antigenic material release, ensuring extended immune stimulation. Current advances in nanotechnology have provided new vaccine platforms, such as lipid nanoparticle (LNP)-based mRNA vaccines, peptide polymer conjugates, and dendritic cell-targeted nanoparticles, enabling targeted delivery to lymph nodes and effective induction of cytotoxic T-lymphocyte responses for powerful antitumor immunity (Tian et al., 2024). Moreover, cutting-edge studies identify the modular and tunable nanovaccine architectures for use in personal neoantigen immunotherapy to provide scalable and tunable manufacturing to cover unique tumor patterns. These developments altogether are a significant step ahead towards the next-generation of cancer vaccination approaches (Zhang et al., 2019; Saleh et al., 2025).
5.2 Modulation of tumor associated macrophages and T-cell activation
TAMs are among the most common immune cells of the TME and are a major regulator of immunosuppression, tumor growth, angiogenesis, and metastasis (Li et al., 2024a). TAMs have a tendency to acquire an M2 like phenotype that supports tumor cell proliferation, suppresses cytotoxic T-cell functions, and facilitates immune evasion. As a result, TAMs have emerged as a valuable target for cancer immunotherapy. Nanotechnology brings novel and targeted ways to control TAM activity by using three broad strategies: (i) blocking circulating monocyte recruitment that gets differentiated into TAMs, (ii) targeted elimination of the pro-tumoral M2 subset macrophages, and (iii) reprogramming the M2 macrophages into anti-tumoral M1 phenotypes with the ability to secrete pro-inflammatory cytokines and restore antitumor immunity (Kim et al., 2024). Macroscopic effects to be brought about by them have led to the development of macrophage receptor ligand-functionalized nanocarriers that deliver therapeutic molecules like CSF-1R inhibitors, siRNA, or TLR agonists to TAMs selectively and thereby modulate the immune system effectively (Li et al., 2024b; Xu et al., 2025). n recent times, lipid nanoparticles (LNPs) loaded with RNA have also been identified as a highly promising delivery strategy for in vivo reprogramming of macrophages due to their biocompatibility, efficient cell uptake, and ability to protect against RNA cargo degradation [30]. The LNPs have the properties to efficiently modulate gene expression in macrophages, changing TME from immunosuppressive to immunostimulatory states. Additionally, nanoparticle platforms can co-deliver cytokines or co-stimulatory molecules to trigger T-cells simultaneously, thus integrating innate and adaptive immunity. Such combinational macrophage–T-cell targeting approaches bear significant potential for the next-generation of immuno-oncology treatments, as shown in Figure 4 (
FIGURE 4

Schematic diagram of tumor-associated macrophage (TAM) interactions in the tumor microenvironment, illustrating M1/M2 polarization and communication with immune cells (T cells, DCs, TANs, and B cells) that control antitumor immunity and tumor growth (Xu et al., 2025).
Nanoplatforms are areas of research that offer scope to combine various therapeutic modalities chemotherapy, radiotherapy, photothermal therapy (PTT), photodynamic therapy (PDT), and immunotherapy, on a single scaffold (Naik et al., 2025). These multifunctional systems allow for concurrent tumor killing and immune stimulation. For instance, drug carrier nanoparticles or photosensitizer-loaded nanoparticles can induce tumor cell death as well as induce in situ release of tumor-associated antigens. When used in combination with immune checkpoint blockade, the process augments systemic antitumor immunity, creating an in situ vaccine effect that enhances the body’s immune response against metastatic or remaining cancer cells (Sun et al., 2024; Naik et al., 2025). Additionally, photothermal and radiotherapy derived nanoplatforms have shown striking synergistic effects by recording more effective tumor regression and greater abscopal responses when combined with immune adjuvants or checkpoint inhibitors. Rational and spatiotemporal design of these multimodal nanotherapies is fundamental to providing clinical efficacy, reducing toxicity, and maximizing therapeutic safety and translation toward next-generation cancer treatment strategies (Pan et al., 2024; Sun et al., 2024; Naik et al., 2025).
6 Design features of smart nanoplatforms
Nanotechnological intelligent nanoplatforms are highly developed to encompass stimulus-responsiveness and active-targeting properties that respond specifically to tumor microenvironmental signals including acidic pH, redox gradients, increased reactive oxygen species (ROS), and tumor-associated enzymes (Sun et al., 2023; Sabit et al., 2025). Such systems facilitate drug release under control, enhanced tumor penetration, as well as decreased off-target toxicity by triggering only in pathological conditions. In addition, to increase tumor selectivity, nanocarriers are targeted with ligands such as antibodies, peptides, aptamers, and small molecules that enable receptor-mediated uptake and enhance accumulation at the tumor site (Urmi et al., 2024; Omidian et al., 2025). Based on recent reports, hybrid nanotherapeutic strategies combining several stimuli responsive mechanisms including combinations of redox and pH sensitivity, or enzyme and ROS responsiveness with ligand based targeting have proved synergistic gains in therapeutic index and tumor selectivity (Parra-Nieto et al., 2024). These multiscale systems adaptively interact with the heterogeneous tumor microenvironment, facilitating site-specific and controlled drug release to reduce off-target toxicity. Further, the multivalency, spatial orientation, and density of immobilized ligands significantly contribute to regulating cellular binding efficiency and receptor-mediated uptake, directly impacting therapeutic efficacy. Dual targeting strategies, which selectively bind to both tumor-specific as well as immune-related surface markers, are being introduced as sophisticated next-generation tools for precision oncology (Navaneeth and Karthikeyan, 2024; Omidian et al., 2025). Concurrently, the evolution of computational modeling, molecular dynamics simulations, and rational nanomaterial design over the last few years has enabled the development of tumor-microenvironment-adaptive carriers with pharmacokinetic optimization, enhanced cellular internalization, extended systemic circulation time, and improved in vivo stability, thus guaranteeing better therapeutic outcomes (
6.1 Multifunctional and biocompatible theranostic nanoplatforms
Nanomedicine focuses on multifunctional theranostic nanoplatforms that both possess therapeutic and diagnostic functions and are highly biocompatible and pharmacokinetically predictable. These smart nanoplatforms deliver drugs, genes, or immunomodulators in combination with imaging modalities, including MRI, PET, fluorescence, or ultrasound, enabling real-time monitoring of biodistribution, therapeutic efficacy, and early therapeutic response expressed in Figure 5 (Yasir et al., 2024; Salgueiro and Zubillaga, 2025).
FIGURE 5

Modular theranostic nanoplatforms in nuclear medicine (Salgueiro and Zubillaga, 2025).
Further hybrid inorganic-organic and polymeric architectures combine photothermal or photodynamic modules with targeting ligands and contrast agents, enabling precision-guided therapy and simultaneous visualization at the molecular level (Salgueiro and Zubillaga, 2025). Moreover, the clinical success of such advanced systems depends on safe material composition and controlled in vivo behavior. Important physicochemical characteristics, particle size, charge, hydrophilicity, and degradability dictate circulation half-life, reticuloendothelial system clearance, and tissue uptake (Kyriakides et al., 2021; Saker et al., 2024). Rational design, therefore, requires the careful balance of multifunctionality with biological safety. Emerging methods utilize biodegradable polymers and environmentally friendly nanomaterials to minimize chronic toxicity and immune stimulation without sacrificing efficacy (Kyriakides et al., 2021; Parra-Nieto et al., 2024). In the future, pharmacokinetic and immunotoxicity assessment frameworks are necessary to provide reproducibility and regulatory acceptability and make them scalable and safe theranostic nanomedicine (Saker et al., 2024; Sabit et al., 2025).
7 Translational barriers and challenges
While promising progress has been achieved in nanotechnology-based cancer therapeutics, it is difficult to translate these systems into efficient lung cancer treatments. Biological barriers like mucus, surfactant, and heterogeneous tumor vasculature restrict the penetration and retention of nanoparticles in lung tissue. The complexity of the tumor microenvironment, i.e., hypoxia and stromal desmoplasia, also impedes accumulation of targeted drugs (Tong et al., 2024). Scale up and reproducible production of nanocarriers is hampered by technical challenges related to stability, batch homogeneity, and manufacturing practice compliance. Routine uncertainty, in the form of inconsistent evaluation paradigms between the Food and Drug Administration (FDA) and European Medicines Agency (EMA), persists to hinder the clinic transition of cancer nanomedicines (Shi et al., 2017). Further, expensive production and characterization complexity disallow scalability and accessibility. Conversely, long-term biosafety concerns such as nanoparticle deposition, immune stimulation, and unpredictable off-target toxicity, pose strong translational risks (Zhang et al., 2024b). To fill these gaps, future strategies focus on patient-tailored nanoformulation design, AI-driven toxicity prediction, and harmonized regulatory frameworks for clinically safe translation (Zhang et al., 2023).
7.1 Manufacturing and biological barriers in lung targeted nanomedicine
Selective and targeted delivery of intelligent nanomedicines to the lung is associated directly with anatomical and biological barriers that restrict therapeutic effectiveness. The respiratory tract is shielded by a cascade of defense barriers, such as mucus, pulmonary surfactants, and epithelial cell barriers, which all retard nanoparticle adhesion, deposition, and penetration in target tissue (
Recent studies have shown that surface engineering, such as PEGylation or charge modulation, improves mucosal diffusion and minimizes immune clearance (
7.2 Safety, ethical and regulatory, challenges in nanomedicine translation
Safety and biocompatibility of nanocarriers are the key issues for clinical translation. Biodegradable polymers, such as polyethylene glycol-poly(lactic-co-glycolic acid (PEG-PLGA), chitosan, and lipid-based nanocarriers, represent a widely used family of materials owing to their relatively low immunogenicity and favorable clearance profile (Wu et al., 2024). The PEGylation indeed reduces opsonization and prolongs the circulation time by minimizing off-target accumulation within the liver and spleen (Zhang et al., 2022; Kesharwani et al., 2025). Nevertheless, the main problem of nanoparticle accumulation in the reticuloendothelial system cannot be completely ignored. Long-term exposure to non-degradable nanoparticles results in oxidative stress, inflammation, and organ-specific toxicity. Recently reported surface modification strategies, including zwitterionic coating or HA-decoration, may markedly minimize the uptake of macrophages and systemic toxicity while maintaining therapeutic efficacy (Li et al., 2022; Skorzynski et al., 2025). Moreover, poorly soluble nanocarriers and inhalable nanocarriers targeting lung tissue are designed for maximal local deposition and minimal systemic exposure, offering further advances in improving the safety profile in preclinical models (
Smart Nanomedicines also have different regulatory problems because of their physicochemical and biological dual hybrid nature. Agencies such as the FDA and EMA stress thorough physicochemical characterization, particle stability testing, and immunotoxicology profiling prior to approval (Soares et al., 2018;
8 Future perspectives and emerging directions
Lung cancer always remains a major partner or contributor to global cancer mortality, responsible for about one in five cancer deaths, even with notable improvements in early detection and treatment methods (Siegel et al., 2022;
Yet, primary and secondary resistance, tumor heterogeneity, and restricted biomarker predictability continue to pose dominant clinical hurdles. As a result, research today is moving in the direction of personalized neoantigen vaccines, multi-modal immunotherapy, precision medicine guided by biomarkers, and AI-driven analytics and nanomedicine platforms combined together for improved diagnosis, therapy optimization, and enhanced patient outcomes (Ott et al., 2017; Mellman et al., 2023).
8.1 Integration of nanotechnology with personalized medicine
The combined system of personalized medicine and nanotechnology is an efficient step forward in precision medicine, which makes it possible for individual diagnosis, of multiple targeted treatments, and therapy outcome monitoring in real-time. Collectively, these nanocarriers can also be formulated with real-time or “intelligent” features in combination with imaging probes including near-infrared dyes, magnetic nanoparticles, and photoacoustic reporters for simultaneous therapy and monitoring. For instance, ROS-responsive polymeric nanocarriers encapsulating fluorescent reporters enable real-time tracing of drug release in tumor therapy (Zhang et al., 2021; Li X. et al., 2023). While magnetic-response nanoplatforms have been developed to deliver immune modulators and allow MRI-guided monitoring of treatment response (Yang et al., 2022; Wei et al., 2026). Overall, all these recent designs underline the importance of smart nanocarriers in establishing targeted, efficient, and responsive immunotherapy in lung cancer (Zhou L. et al., 2022;
FIGURE 6

Common types of biorecognition elements used in biosensing and their respective immobilization strategies: (a) (i) Antibody-based systems. (ii) Nucleic acid-based systems. (iii) Molecularly imprinted polymer-based systems. (b) Various signal transduction strategies of aptasensors (
The advanced innovations in nano-diagnostics and theranostics have also coupled therapy and imaging in one nanoplatform, permitting real-time monitoring of drug release and disease progress.
8.2 Role of AI, machine learning, and digital twins in smart nanomedicine
The use of nanomedicine is aggressively growing and will see tremendous growth in the healthcare industry. Nanomedicines involve a broad spectrum of formulations, such as liposomes, lipid nanoparticles (LNPs), antibody drug conjugates ADCs, polymeric nanoparticles, viral vectors, cell-derived nanoparticles, inorganic nanoparticles, nanocrystals, protein-based nanoparticles, and nano-micelles (Thapa and Kim, 2023). As a result, they have been extensively used to treat cancer, infectious diseases, and neurological disorders. But clinical applications of nanomedicines on a larger scale are hindered, mainly because of limitations such as poor in vitro-in vivo correlation, off-target-derived toxicity, intricate processes of manufacture, and product instability (
8.3 Lung cancer care through next-generation bioinspired smart nanoplatforms
Nanotechnology is the most revolutionary science of the 21st century, encompassing nanometer-scale engineering and production of materials (1–1000 nm), at which most biological processes naturally take place (Surendiran et al., 2009). Use of nanotechnology in medicine, known as nanomedicine, aims to create nanoscale therapeutic systems for better patient outcomes. Among them, nanoparticles (NPs), particularly those with a size of 10–100 nm, are highly useful owing to their capability to bypass the reticuloendothelial system (RES) and remain in circulation time in the blood. Small size, large surface area-to-volume ratio, and molecular encapsulation capacity, along with surface functionalization, render them the most sought-after candidates for drug delivery, imaging, and therapeutic purposes (
9 Conclusion
Application of nanotechnology in lung cancer research has opened unique opportunities for early diagnosis and immune modulation, addressing two of the most critical challenges in oncology. Smart nanoplatforms, designed with tunable physicochemical properties and biological specificity, enable sensitive detection of circulating biomarkers such as exosomal proteins, nucleic acids, and metabolic indicators often detectable before radiographic abnormalities appear. Also, nanocarriers facilitate targeted delivery of immunomodulatory drugs, i.e., immune checkpoint inhibitors, cytokines, and tumor-associated antigens, thereby enhancing immune recognition as well as suppression reversal by tumors. Such advances hold great promise for the situation of early-stage disease, in which treatment can markedly enhance survival. Translational advances are nevertheless constrained by critical barriers despite outstanding progress. Biological heterogeneity of lung tumors, off-target accumulation, and long-term toxicity of nanomaterials continue to be challenges to reproducibility and safety. In addition, large-scale manufacturing, standardization of nanoplatform synthesis, and regulatory frameworks for nanodiagnostics and nano-immunotherapies need to be addressed urgently. The future wave of innovation will likely depend on merging nanotechnology with artificial intelligence, digital twins, and personalized medicine to forecast therapeutic outcomes and tailor treatment planning. The biodegradable nanoplatform is promising avenues for improved and safe clinical utilization. Briefly, intelligent nanoplatforms provide a paradigm shift to early diagnosis and immune modulation in lung cancer through diagnostic accuracy along with therapeutic agility. Interdisciplinary convergence between materials scientists, oncologists, and data scientists is crucial to realizing precision nanomedicine in lung cancer treatment.
Statements
Author contributions
CY: Writing – original draft. HX: Writing – review and editing. YW: Writing – review and editing. XL: Conceptualization, Investigation, Writing – review and editing, Supervision.
Funding
The author(s) declared that financial support was not received for this work and/or its publication.
Conflict of interest
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Summary
Keywords
artificial intelligence, early cancer detection, immune modulation, lung cancer, nanotechnology
Citation
Yu C, Xia H, Wang Y and Liu X (2026) Smart nanoplatforms for early detection and immune modulation in lung cancer. Front. Bioeng. Biotechnol. 13:1734570. doi: 10.3389/fbioe.2025.1734570
Received
28 October 2025
Revised
26 November 2025
Accepted
15 December 2025
Published
22 January 2026
Volume
13 - 2025
Edited by
Made Adi Paramartha Putra, Primakara University, Indonesia
Reviewed by
Tao Chen, Qingdao University, China
Fahad Khan, Saveetha Medical College and Hospital, India
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© 2026 Yu, Xia, Wang and Liu.
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*Correspondence: Xueping Liu, ping202901@163.com
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