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The amino acid variants in HLA II molecules explain the major association with adult-onset Still's disease in the Han Chinese population

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机构: [a]Department of Rheumatology and Immunology, Shanghai Jiao Tong University School of Medicine Affiliated Ruijin Hospital, Shanghai, China [b]The Affiliated Hospital of Qingdao University & the Biomedical Sciences Institute of Qingdao University (Qingdao Branch of SJTU Bio-X Institutes), Qingdao University, Qingdao, China [c]Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders (Ministry of Education), The Collaborative Innovation Center for Brain Science, Shanghai Jiao Tong University, Shanghai, China [d]Institute of Social Cognitive and Behavioral Sciences, Shanghai Jiao Tong University, Shanghai, China [e]Institute of Neuropsychiatric Science and Systems Biological Medicine, Shanghai Jiao Tong University, Shanghai, China [f]Shanghai Key Laboratory of Psychotic Disorders, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China [g]Xinhua Hospital Chongming Branch Affiliated to Shanghai Jiao Tong University School of Medicine, China [h]Department of Psychiatry, The First Teaching Hospital of Xinjiang Medical University, Urumqi, China [i]Changning Mental Health Center, Shanghai, China [j]Department of Rheumatology and Immunology, People's Hospital of Xinjiang Ugyur Autonomous Region, Urumqi, 830001, China [k]Department of Rheumatology and Immunology, First Affiliated Hospital of Kunming Medical University, Kunming, 650032, China [l]Department of Rheumatology and Immunology, First Affiliated Hospital of Bengbu Medical College, 233000, China [m]Department of Urology, The Affiliated Hospital of Qingdao University, Qingdao, China [n]Key Laboratory, Department of Urology and Andrology, The Affiliated Hospital of Qingdao University, Qingdao, China
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关键词: Adult-onset still's disease Genome-wide association studies Imputation MHC Single nucleotide polymorphism

摘要:
Adult-onset Still's disease (AOSD) is a rare autoinflammatory disease with systemic involvement, and its pathophysiology remains unclear. Genome-wide association studies (GWAS) in the Chinese population have revealed an association between AOSD and the major histocompatibility complex (MHC) locus; however, causal variants in the MHC remain undetermined. In the present study, we identified independent amino-acid polymorphisms in human leukocyte antigen (HLA) molecules that are associated with Han Chinese patients with AOSD by fine-mapping the MHC locus. Through conditional analyses, we identified position 34 in HLA-DQα1 (p = 1.44 × 10−14) and Asn in HLA-DRβ1 position 37 (p = 5.12 × 10−11) as the major determinants for AOSD. Moreover, we identified the associations for three main HLA class II alleles: HLA-DQB1*06:02 (OR = 2.70, p = 3.02 × 10−14), HLA-DRB1*15:01 (OR = 2.44, p = 3.66 × 10−13), and HLA-DQA1*01:02 (OR = 1.97, p = 1.09 × 10−9). This study reveals the relationship between functional variations in the class II HLA region and AOSD, implicating the MHC locus in the pathogenesis of AOSD. © 2020 Elsevier Ltd

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大类 | 1 区 医学
小类 | 1 区 免疫学
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大类 | 1 区 医学
小类 | 2 区 免疫学
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Q1 IMMUNOLOGY
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Q1 IMMUNOLOGY

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第一作者机构: [a]Department of Rheumatology and Immunology, Shanghai Jiao Tong University School of Medicine Affiliated Ruijin Hospital, Shanghai, China
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