Influence of Helicobacter pylori Infection on Gut and Tumor Microbiomes and Its Relationship with Immunotherapy Outcomes in Gastrointestinal Malignancies - Takeaways - MDSpire

Influence of Helicobacter pylori Infection on Gut and Tumor Microbiomes and Its Relationship with Immunotherapy Outcomes in Gastrointestinal Malignancies

  • By

  • Keren Jia

  • Yang Chen

  • Die Dai

  • Yi Xie

  • Haoxin Peng

  • Yanshuo Cao

  • Hua Zou

  • Chuangzhao Qiu

  • Yan Tan

  • Xiaotian Zhang

  • Zhihao Lu

  • Xiaochen Yin

  • Zhi Peng

  • Jian Li

  • Lin Shen

  • January 12, 2026

  • 0 min

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  • 1

    Helicobacter pylori is a Group I carcinogen linked to gastric cancer, affecting approximately 40% of the global population.

  • 2

    H. pylori-positive gastric cancer patients show significantly longer immune-related progression-free survival compared to H. pylori-negative patients.

  • 3

    The gut microbiome's composition and diversity are influenced by H. pylori infection, impacting immune response and therapeutic outcomes.

  • 4

    Intratumoral microbiome is associated with gastric cancer prognosis and may mediate the effects of H. pylori on treatment response.

  • 5

    This study evaluates the role of H. pylori-driven microbiome changes in gastrointestinal cancer patients undergoing immunotherapy.

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