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August 5, 2026Advanced ScienceOpen Access

METTL7A Downregulation Drives SLC1A5‐Mediated Glutamine Competition to Promote Tumor Proliferation and Suppress CD8 + T Cell Immunity in Gastric Cancer

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Authors

MSMingjun SunHarbin Medical UniversitySDShuwei DangHarbin Medical UniversityDZDazhi ZhouHarbin Medical University

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Implication

Randomized trial investigates how METTL7A affects glutamine competition and CD8+ T cell immunity in gastric cancer, suggesting potential therapies.

Key Points

  • This research aims to understand how METTL7A influences glutamine metabolism and immune response in gastric cancer.
  • Investigated the expression levels of METTL7A and SLC1A5 in gastric cancer cells.
  • Assessed the effects of luteolin on METTL7A expression and SLC1A5 levels.
  • Evaluated changes in tumor proliferation and CD8+ T cell immunity in response to metabolic alterations.
  • Loss of METTL7A led to increased SLC1A5 expression, promoting tumor cell proliferation (SLC1A5 levels increased; exact metrics not provided).
  • Luteolin upregulated METTL7A and downregulated SLC1A5, inhibiting cancer progression and enhancing anti-PD-1 therapy efficacy (exact metrics not provided).
  • SLC1A5-mediated glutamine competition resulted in reduced availability for CD8+ T cells, thereby suppressing antitumor immunity.

Cite This Study

Sun et al. (2026) studied this question.

synapsesocial.com/papers/6a72e85b226790f370658260https://doi.org/10.1002/advs.76963
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