Phenotypic insights into genetic risk factors for immune-related adverse events in cancer immunotherapy

免疫疗法 表型 免疫系统 癌症免疫疗法 不利影响 免疫学 癌症 医学 生物 肿瘤科 内科学 遗传学 基因
作者
Haochuan Ma,Dili Song,Haibo Zhang,Taidong Li,Xing Jin
出处
期刊:Cancer Immunology, Immunotherapy [Springer Science+Business Media]
卷期号:74 (1)
标识
DOI:10.1007/s00262-024-03854-8
摘要

Immune-related adverse events (irAEs) pose substantial challenges in the realm of cancer immunotherapy, frequently affecting treatment efficacy and patient safety. To address the urgent need for identifying risk factors associated with irAEs, we conducted a comprehensive phenotype-wide Mendelian randomization analysis (MR-PheWAS). Utilizing publicly accessible genome-wide association study (GWAS) data, this investigation evaluated the impact of over 5000 exposure variables on susceptibility to irAEs using univariate Mendelian randomization (MR). We categorized these correlations and further explored potential mechanisms by which associated traits might influence irAEs through multivariate MR. MR-PheWAS identified numerous risk factors for irAEs, encompassing both previously documented and novel associations. Specifically, we identified 105 traits with probable causal relationships to all-grade irAEs and 119 traits with suggestive associations. For high-grade irAEs, we categorized 122 traits as probably associated and 141 as suggestively associated. Notably, multivariate MR analyses uncovered intricate interactions, particularly highlighting how diabetes impacts all-grade irAEs through mediators such as body mass index and sex hormone-binding globulin. This study has not only identified new risk factors for irAEs but also confirmed several well-established ones. Further investigation is crucial to validate and assess these identified risk factors within clinical trials. A mechanistic understanding of these causal factors is essential for improving the management and prevention of irAEs.
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