Causal Relationships Between Immune Cells and Risk of Gastric Cancer: A Mendelian Randomization Study

ObjectiveTo analyze the causal relationship between immune cell phenotype and gastric cancer. MethodsBidirectional two-sample Mendelian randomization (MR) analysis was used to select 731 genetic variants involving immune cell phenotypes from the GWAS dataset as instrumental variables. Inverse-varian...

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Bibliographic Details
Main Authors: Jiawei HE, Longnyu CAO, Mengyuan TANG, Hongquan CUI
Format: Article
Language:zho
Published: Magazine House of Cancer Research on Prevention and Treatment 2025-02-01
Series:Zhongliu Fangzhi Yanjiu
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Online Access:http://www.zlfzyj.com/cn/article/doi/10.3971/j.issn.1000-8578.2025.24.0438
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Summary:ObjectiveTo analyze the causal relationship between immune cell phenotype and gastric cancer. MethodsBidirectional two-sample Mendelian randomization (MR) analysis was used to select 731 genetic variants involving immune cell phenotypes from the GWAS dataset as instrumental variables. Inverse-variance weighting method (IVW), weighted median method (WM), and MR-Egger regression were used for sensitivity analysis. Cochran Q test, MR-Egger regression, MR-PRESSO method, and remain-one method were also conducted. ResultsChanges in the absolute count of IgD+ B cells and CD14-CD16- cells were significantly associated with the risk of gastric cancer. A lower proportion of IgD+ B cells was associated with a lower risk of gastric cancer (OR=0.86, 95%CI: 0.79-0.94), while an increased number of CD4-CD8-T cells was associated with an increased risk of gastric cancer (OR=1.2, 95%CI: 1.1-1.3). ConclusionA causal relationship exists between immune cell phenotype and the risk of gastric cancer. Changes in specific immune markers may regulate the development of gastric cancer by affecting the tumor microenvironment.
ISSN:1000-8578