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REVIEW article

Front. Immunol.

Sec. Cancer Immunity and Immunotherapy

Volume 16 - 2025 | doi: 10.3389/fimmu.2025.1639487

This article is part of the Research TopicNew Tumor Immune Checkpoints and Their Applications in Tumor ImmunotherapyView all 3 articles

Mechanisms, Advances, and Challenges of Immunotherapy in Gastric Cancer

Provisionally accepted
  • Naval Medical University, Shanghai, China

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

Gastric cancer (GC) is one of the most common gastrointestinal malignancies worldwide, characterized by a high incidence rate, low screening rate, and subtle early symptoms. As a result, the majority of patients are diagnosed at an advanced or metastatic stage, contributing to poor overall prognosis. In recent years, the emergence and continuous advancement of immunotherapy have revolutionized the traditional treatment landscape for GC, offering new hope for precision medicine. Immunotherapy exerts its antitumor effects primarily by modulating the immunosuppressive tumor microenvironment and includes modalities such as immune checkpoint inhibitors (ICIs), adoptive cell therapies (ACTs), and cancer vaccines. Among these, ICIs and ACT have garnered significant attention. This review summarizes the underlying mechanisms, current applications, and major challenges of immunotherapy in GC. In addition, we discuss emerging biomarkers with potential utility for predicting immunotherapeutic efficacy in GC patients.

Keywords: gastric cancer, Immunotherapy, immune checkpoint inhibitors, adoptive cell therapy, biomarkers

Received: 02 Jun 2025; Accepted: 22 Aug 2025.

Copyright: © 2025 Wang and Wang. 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: Tengjiao Wang, Naval Medical University, Shanghai, China

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