Gut–Brain–Microbiome Axis in the Regulation of Cancer Immune Escape and Immunotherapy in Tumors

Sep 15, 2025Research (Washington, D.C.)

How the Gut-Brain-Microbiome System May Influence Tumor Immune Evasion and Response to Immunotherapy

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Abstract

The gut microbiota may influence brain tumor characteristics through interactions with the immune environment.

  • Crosstalk between the intestine and brain involves the gut microbiota as a crucial mediator.
  • Gut microbiota and its metabolites may modulate the immune environment of brain tumors.
  • This modulation could impact tumor initiation, progression, invasion, and metastasis.
  • Pathophysiological mechanisms of gut-brain axis modulation of brain tumors are summarized.
  • Emerging therapeutic approaches, including immunotherapy and targeted therapy, are discussed.

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