孟德尔随机化
医学
全基因组关联研究
荟萃分析
特应性皮炎
生命银行
疾病
人口
肿瘤科
癌症
遗传关联
内科学
人口学
单核苷酸多态性
生物信息学
环境卫生
遗传学
基因型
皮肤病科
遗传变异
基因
生物
社会学
作者
Qiang Liu,Li Chen,Yipeng Wang,Xiangyu Wang,Sarah J. Lewis,Jing Wang
摘要
Abstract Background Atopic dermatitis (AD) accounts for a large proportion of the burden of skin disease, with a prevalence of around 10% among adults worldwide. In addition, systematic reviews and meta‐analyses have found that AD is associated with cancer risk at several sites; if found to be causal this could highlight potential treatment targets to reduce cancer risk. Objectives To assess the potential causative link between AD and 14 site‐specific cancers in a two‐sample randomization study. Methods From the largest genome‐wide association study (GWAS) of AD (10,788 cases and 30,047 non‐cases), genetic variants highly associated ( p < 5 × 10 −8 ) with AD in the European population were selected as instrumental variables (IVs). Data from large cancer consortia, as well as the UK Biobank study ( n = 442,239) and the FinnGen study ( n = 218,792), were employed to assess genetic associations with 14 site‐specific cancers and overall cancer. A set of complementary approaches and sensitivity analyses were carried out to examine the robustness of our results. In addition, associations for the same cancer site from different data sources were combined using meta‐analyses. Results We discovered no strong causal evidence of AD on the risk of overall cancer, with effect estimates close to zero. After the Benjamini–Hochberg correction, the inverse‐variance weighted method indicated no association between AD and overall cancer risk in both the UK Biobank (OR, 1.00; 95% CI, 0.94–1.06; FDR, 0.98) and FinnGen studies (OR, 0.96; 95% CI, 0.92–1.02; FDR, 0.68). No strong evidence of an association was found between genetically predicted AD and the risk of any site‐specific cancers. Conclusions Our MR investigation does not support a causal effect of AD on cancer risk. This finding has important implications for the prevention and management of both AD and cancer, as it reduces the concern of potential adverse effects of AD on cancer outcomes.
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