{"title":"The shared genetic etiology of autoimmune disorders and interstitial lung disease: insights from large-scale genome-wide cross-trait analysis.","authors":"Fang Zhou, Ting Li, Hongyan Hui, Jianlian Gao, Zhichao Xu, Zhijian Deng","doi":"10.1007/s10238-025-01836-3","DOIUrl":null,"url":null,"abstract":"<p><p>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<sup>-8</sup>), 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.</p>","PeriodicalId":10337,"journal":{"name":"Clinical and Experimental Medicine","volume":"25 1","pages":"305"},"PeriodicalIF":3.5000,"publicationDate":"2025-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12391177/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Clinical and Experimental Medicine","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1007/s10238-025-01836-3","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MEDICINE, RESEARCH & EXPERIMENTAL","Score":null,"Total":0}
引用次数: 0
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.
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.