The shared genetic etiology of autoimmune disorders and interstitial lung disease: insights from large-scale genome-wide cross-trait analysis.

IF 3.5 4区 医学 Q2 MEDICINE, RESEARCH & EXPERIMENTAL
Fang Zhou, Ting Li, Hongyan Hui, Jianlian Gao, Zhichao Xu, Zhijian Deng
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Abstract

Autoimmune diseases often co-occur with interstitial lung disease (ILD), and ILD is associated with patient prognosis. Research has demonstrated a relationship between autoimmune diseases and ILD; however, the genetic basis underlying this connection is frequently overlooked. Linkage disequilibrium score regression and high-definition likelihood methods were applied to large-scale genome-wide association studies summary-level data sets to assess genetic correlations between 17 autoimmune disorders and ILD. Several functional annotations and tissue-specific analyses were performed to determine the influence of pleiotropic genes based on the pleiotropy analysis method under the compound null hypothesis method. Eight autoimmune disorders were revealed sharing genetic mechanisms with ILD. A total of 107 pleiotropic loci were identified at the genome-wide significance level (P < 5 × 10-8), 18 of which had strong evidence of colocalization. Multiple potential pleiotropic genetic loci were identified, particularly the SMO gene located 7q32.1 locus. Pathway analysis determined in bound by FOXP3, T cell selection, and regulation of immune response. SNP- and gene-level tissue enrichment revealed that pleiotropic mechanisms play a critical role in spleen, whole blood, lung, and EBV-transformed lymphocytes. There are significant genetic correlations and potential causal mechanisms between autoimmune diseases and ILD. The findings of this study provide a deeper understanding of the genetic architecture of autoimmune diseases and ILD.

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自身免疫性疾病和间质性肺病的共同遗传病因:来自大规模全基因组交叉性状分析的见解
自身免疫性疾病常与间质性肺疾病(ILD)并发,且ILD与患者预后相关。研究已经证实了自身免疫性疾病与ILD之间的关系;然而,这种联系背后的遗传基础经常被忽视。链接不平衡评分回归和高清晰度似然方法应用于大规模全基因组关联研究总结水平数据集,以评估17种自身免疫性疾病与ILD之间的遗传相关性。基于复合零假设方法下的多效性分析方法,对多效性基因的影响进行了功能注释和组织特异性分析。8种自身免疫性疾病被发现与ILD有共同的遗传机制。在全基因组显著性水平(P -8)上共鉴定出107个多效位点,其中18个具有明显的共定位证据。发现了多个潜在的多效性遗传位点,特别是位于7q32.1位点的SMO基因。途径分析确定FOXP3结合、T细胞选择和免疫反应调控。SNP和基因水平的组织富集表明,多效性机制在脾脏、全血、肺和ebv转化淋巴细胞中起关键作用。自身免疫性疾病与ILD之间存在显著的遗传相关性和潜在的因果机制。本研究的发现为自身免疫性疾病和ILD的遗传结构提供了更深入的了解。
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来源期刊
Clinical and Experimental Medicine
Clinical and Experimental Medicine 医学-医学:研究与实验
CiteScore
4.80
自引率
2.20%
发文量
159
审稿时长
2.5 months
期刊介绍: Clinical and Experimental Medicine (CEM) is a multidisciplinary journal that aims to be a forum of scientific excellence and information exchange in relation to the basic and clinical features of the following fields: hematology, onco-hematology, oncology, virology, immunology, and rheumatology. The journal publishes reviews and editorials, experimental and preclinical studies, translational research, prospectively designed clinical trials, and epidemiological studies. Papers containing new clinical or experimental data that are likely to contribute to changes in clinical practice or the way in which a disease is thought about will be given priority due to their immediate importance. Case reports will be accepted on an exceptional basis only, and their submission is discouraged. The major criteria for publication are clarity, scientific soundness, and advances in knowledge. In compliance with the overwhelmingly prevailing request by the international scientific community, and with respect for eco-compatibility issues, CEM is now published exclusively online.
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