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ORIGINAL RESEARCH article

Front. Oncol.

Sec. Neuro-Oncology and Neurosurgical Oncology

DIAGNOSTIC VALUE OF CELLULAR INFLAMMATORY MARKERS IN CNS TUMOR PATIENTS UNDERGOING GLUCOCORTICOID THERAPY

Provisionally accepted
Sofya  SklyarSofya Sklyar1Darya  SitovskayaDarya Sitovskaya1Natalia  DryaginaNatalia Dryagina1Aleksei  UlitinAleksei Ulitin1Victor  OlyushinVictor Olyushin1Stephanie  E CombsStephanie E Combs2Konstantin  SamochernykhKonstantin Samochernykh1Maxim  ShevtsovMaxim Shevtsov2*
  • 1Polenov Neurosurgical Institute, St. Petersburg, Russia
  • 2Technical University of Munich, Munich, Germany

The final, formatted version of the article will be published soon.

Introduction. While inflammation is recognized as a key driver of solid tumor progression, the diagnostic and pathophysiological relevance of cellular inflammatory biomarkers in central nervous system (CNS) neoplasms remains incompletely defined. Materials and Methods. Clinical and hematological data were analyzed from 44 patients with glioblastoma, 32 with brain metastases, and 33 patients with meningioma who underwent primary surgical treatment between 2024 and 2025. A control group of healthy age-matched volunteers (n = 20) was included for comparison. The diagnostic performance of cellular inflammatory markers was evaluated across tumor entities, with additional stratification according to glucocorticosteroid exposure. Results. Patients with intracerebral tumors exhibited higher neutrophil and monocyte counts, as well as elevated neutrophil-to-lymphocyte ratio (NLR) and pan-immune inflammation value (PIV), along with a lower lymphocyte-to-monocyte ratio (LMR) compared to both the meningioma group and healthy volunteers (p<0.05). In glioblastoma patients, dexamethasone administration significantly affected neutrophil and monocyte counts, NLR and PIV (p<0.05). In the group with metastatic brain lesions, glucocorticoid therapy led to an increase in neutrophil count and NLR (p<0.05). The LMR level was not influenced by dexamethasone. Conclusion. For patients with glioblastoma, the LMR serves as a diagnostically significant inflammatory biomarker independent of glucocorticoid administration. In patients with metastatic brain lesions, the most significant diagnostic value was demonstrated by monocyte counts, PIV and LMR.

Keywords: Glioblastoma, immune response, lymphocyte-to-monocyte, Meningioma, metastatic CNS lesion, Neutrophil-to-lymphocyte ratio, Pan-Immune-Inflammation Value

Received: 09 Dec 2025; Accepted: 03 Feb 2026.

Copyright: © 2026 Sklyar, Sitovskaya, Dryagina, Ulitin, Olyushin, Combs, Samochernykh and Shevtsov. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

* Correspondence: Maxim Shevtsov

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