ecancermedicalscience

Research

Basophils may be a risk factor for upper gastrointestinal cancer: a Mendelian randomization (MR) study

14 Nov 2024
Pengkhun Nov, Wandan Li, Duanyu Wang, Socheat Touch, Samnang Kouy, Peizan Ni, Qianzi Kou, Ying Li, Chongyang Zheng, Arzoo Prasai, Wen Fu, Kunpeng Du, Syphanna Sou, Jiqiang Li

Objective: Upper gastrointestinal (UGI) cancers, including esophageal (EC) and gastric (GC) cancers, pose a significant global health challenge. Previous studies have indicated a fundamental correlation between basophil count and the risk of UGI cancer. However, confirming a causal relationship demands further investigation. Mendelian randomization (MR) provides a critical method for evaluating the possible causal connections between peripheral circulating blood cells (PCBCs) and UGI cancer.

Method: Our study comprehensively employed a two-sample MR analysis. We used publicly available genetic data to survey the causal association between PCBC and UGI cancer. We used inverse variance weighting and weighted median for MR analyses and sensitivity analyses to assess heterogeneity and pleiotropy.

Results: In terms of the association between PCBCs and UGI cancer, we found that basophils count (EC: OR = 1.416, 95% CI = 1.125−1.783, p = 0.003; GC: OR = 1.623, 95% CI = 1.052−2.505, p = 0.029) were all strongly correlated with both EC and GC. Interestingly, Basophil count was a risk factor for both EC and GC. However, no significant correlations were seen between eosinophil, monocyte, lymphocyte or white blood cell count and UGI cancer.

Conclusion: The findings of this research corroborate the idea that basophils might serve as a fundamental risk factor for UGI cancer. Further exploration of the underlying mechanisms driving this relationship could provide crucial understanding helpful in creating prospective preventive and treatment methods for UGI cancer.

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