自身免疫性疾病及其与支气管病的遗传联系:从遗传相关性和门德尔随机化研究的见解
Yue Su1, Youqian Zhang2, Yanhua Chai1
1Department of Respiratory and Critical Care Medicine, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, China.
这项研究研究了自身免疫性疾病和支气管切除 (BE) 之间的遗传联系. 风湿性关节炎 (RA) 被确定为BE的独立风险因素,而腹腔疾病 (CeD) 显示出一种保护性关联.
科学领域:
- 遗传学和免疫学 遗传学和免疫学
- 呼吸系统医学 呼吸系统医学
背景情况:
- 自免疫性疾病经常与支气管切除症 (BE) 一起观察到.
- 自身免疫疾病和BE之间的确切因果关系尚不清楚.
研究的目的:
- 使用孟德尔随机化阐明12种自身免疫性疾病和支气管切除症之间的遗传因果关系.
- 为了确定潜在的混和调解因素在自身免疫性疾病和BE之间的关联.
主要方法:
- 利用来自大型基因组广泛关联研究 (GWAS) 的摘要级数据.
- 采用单变量和多变量门德尔随机化 (UVMR和MVMR) 来评估因果关系和混效应.
- 应用链接不平衡得分回归 (LDSC) 用于基因相关性分析和中介因子的中介分析.
主要成果:
- 在BE和克罗恩病,类风湿性关节炎 (RA) 和性结肠炎之间发现了显著的遗传相关性.
- RA 成为 BE 的独立风险因素 (OR = 1.103,P = 1.75×10−5).
- 结核病 (CeD) 表明与BE具有保护性关联 (OR = 0.949,P = 0.044),并且有迹象表明T1DM与BE风险增加有关.
结论:
- 几种自身免疫性疾病和支气管病之间存在遗传相关性.
- 据证实,类风湿性关节炎是支气管炎的独立遗传风险因素.
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