PMID- 31022184 OWN - NLM STAT- MEDLINE DCOM- 20190930 LR - 20221207 IS - 1553-7404 (Electronic) IS - 1553-7390 (Print) IS - 1553-7390 (Linking) VI - 15 IP - 4 DP - 2019 Apr TI - Amino acid signatures of HLA Class-I and II molecules are strongly associated with SLE susceptibility and autoantibody production in Eastern Asians. PG - e1008092 LID - 10.1371/journal.pgen.1008092 [doi] LID - e1008092 AB - Human leukocyte antigen (HLA) is a key genetic factor conferring risk of systemic lupus erythematosus (SLE), but precise independent localization of HLA effects is extremely challenging. As a result, the contribution of specific HLA alleles and amino-acid residues to the overall risk of SLE and to risk of specific autoantibodies are far from completely understood. Here, we dissected (a) overall SLE association signals across HLA, (b) HLA-peptide interaction, and (c) residue-autoantibody association. Classical alleles, SNPs, and amino-acid residues of eight HLA genes were imputed across 4,915 SLE cases and 13,513 controls from Eastern Asia. We performed association followed by conditional analysis across HLA, assessing both overall SLE risk and risk of autoantibody production. DR15 alleles HLA-DRB1*15:01 (P = 1.4x10-27, odds ratio (OR) = 1.57) and HLA-DQB1*06:02 (P = 7.4x10-23, OR = 1.55) formed the most significant haplotype (OR = 2.33). Conditioned protein-residue signals were stronger than allele signals and mapped predominantly to HLA-DRB1 residue 13 (P = 2.2x10-75) and its proxy position 11 (P = 1.1x10-67), followed by HLA-DRB1-37 (P = 4.5x10-24). After conditioning on HLA-DRB1, novel associations at HLA-A-70 (P = 1.4x10-8), HLA-DPB1-35 (P = 9.0x10-16), HLA-DQB1-37 (P = 2.7x10-14), and HLA-B-9 (P = 6.5x10-15) emerged. Together, these seven residues increased the proportion of explained heritability due to HLA to 2.6%. Risk residues for both overall disease and hallmark autoantibodies (i.e., nRNP: DRB1-11, P = 2.0x10-14; DRB1-13, P = 2.9x10-13; DRB1-30, P = 3.9x10-14) localized to the peptide-binding groove of HLA-DRB1. Enrichment for specific amino-acid characteristics in the peptide-binding groove correlated with overall SLE risk and with autoantibody presence. Risk residues were in primarily negatively charged side-chains, in contrast with rheumatoid arthritis. We identified novel SLE signals in HLA Class I loci (HLA-A, HLA-B), and localized primary Class II signals to five residues in HLA-DRB1, HLA-DPB1, and HLA-DQB1. These findings provide insights about the mechanisms by which the risk residues interact with each other to produce autoantibodies and are involved in SLE pathophysiology. FAU - Molineros, Julio E AU - Molineros JE AD - Arthritis and Clinical Immunology Research Program, Oklahoma Medical Research Foundation, Oklahoma City, Oklahoma, United States of America. FAU - Looger, Loren L AU - Looger LL AD - Howard Hughes Medical Institute, Janelia Research Campus, Ashburn, Virginia, United States of America. FAU - Kim, Kwangwoo AU - Kim K AUID- ORCID: 0000-0001-8926-6216 AD - Department of Biology, Kyung Hee University, Seoul, Republic of Korea. FAU - Okada, Yukinori AU - Okada Y AD - Department of Statistical Genetics, Osaka University Graduate School of Medicine, Osaka, Japan. AD - Laboratory for Statistical Analysis, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan. AD - Laboratory of Statistical Immunology, Immunology Frontier Research Center (WPI-IFReC), Osaka University, Suita, Japan. FAU - Terao, Chikashi AU - Terao C AUID- ORCID: 0000-0002-6452-4095 AD - Center for Genomic Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan. AD - Center for the Promotion of Interdisciplinary Education and Research, Kyoto University, Kyoto, Japan. AD - Division of Genetics, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, United States of America. AD - Program in Medical and Population Genetics, Broad Institute, Cambridge, Massachusetts, United States of America. FAU - Sun, Celi AU - Sun C AD - Arthritis and Clinical Immunology Research Program, Oklahoma Medical Research Foundation, Oklahoma City, Oklahoma, United States of America. FAU - Zhou, Xu-Jie AU - Zhou XJ AD - Renal Division, Peking University First Hospital, Peking University Institute of Nephrology, Key Laboratory of Renal Disease, Ministry of Health of China, Beijing, China. AD - Key Laboratory of Chronic Kidney Disease Prevention and Treatment (Peking University), Ministry of Education, Beijing, China. FAU - Raj, Prithvi AU - Raj P AD - Department of Immunology, University of Texas Southwestern Medical Center, Dallas, Texas, United States of America. FAU - Kochi, Yuta AU - Kochi Y AD - Laboratory for Autoimmune Diseases, Center for Integrative Medical Sciences, RIKEN, Yokohama, Japan. FAU - Suzuki, Akari AU - Suzuki A AD - Laboratory for Autoimmune Diseases, Center for Integrative Medical Sciences, RIKEN, Yokohama, Japan. FAU - Akizuki, Shuji AU - Akizuki S AD - Department of Rheumatology and Clinical Immunology, Graduate School of Medicine, Kyoto University, Kyoto, Japan. FAU - Nakabo, Shuichiro AU - Nakabo S AUID- ORCID: 0000-0002-9250-1851 AD - Department of Rheumatology and Clinical Immunology, Graduate School of Medicine, Kyoto University, Kyoto, Japan. FAU - Bang, So-Young AU - Bang SY AD - Department of Rheumatology, Hanyang University Hospital for Rheumatic Diseases, Seoul, Korea. FAU - Lee, Hye-Soon AU - Lee HS AUID- ORCID: 0000-0002-8535-0442 AD - Department of Rheumatology, Hanyang University Hospital for Rheumatic Diseases, Seoul, Korea. FAU - Kang, Young Mo AU - Kang YM AD - School of Medicine, Kyungpook National University Hospital, Daegu, Korea. FAU - Suh, Chang-Hee AU - Suh CH AUID- ORCID: 0000-0001-6156-393X AD - Department of Rheumatology, Ajou University Hospital, Suwon, Korea. FAU - Chung, Won Tae AU - Chung WT AUID- ORCID: 0000-0002-1585-1022 AD - Dong-A University Hospital, Department of Internal Medicine, Busan, Korea. FAU - Park, Yong-Beom AU - Park YB AD - Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea. FAU - Choe, Jung-Yoon AU - Choe JY AD - Department of Rheumatology, Catholic University of Daegu School of Medicine, Daegu, Korea. FAU - Shim, Seung-Cheol AU - Shim SC AD - Daejeon Rheumatoid & Degenerative Arthritis Center, Chungnam National University Hospital, Daejeon, Korea. FAU - Lee, Shin-Seok AU - Lee SS AUID- ORCID: 0000-0001-6810-7355 AD - Department of Rheumatology, Chonnam National University Medical School and Hospital, Gwangju, Korea. FAU - Zuo, Xiaoxia AU - Zuo X AD - Department of Rheumatology and Immunology, Xiangya Hospital, Central South University, Changsha, China. FAU - Yamamoto, Kazuhiko AU - Yamamoto K AD - Laboratory for Autoimmune Diseases, Center for Integrative Medical Sciences, RIKEN, Yokohama, Japan. FAU - Li, Quan-Zhen AU - Li QZ AD - Department of Immunology and Internal Medicine, University of Texas Southwestern Medical Center, Dallas, Texas, United States of America. FAU - Shen, Nan AU - Shen N AD - Department of Rheumatology and Shanghai Institute of Rheumatology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China. AD - Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences and Shanghai Jiao Tong University School of Medicine, Shanghai, China. AD - Center for Autoimmune Genomics and Etiology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, United States of America. AD - Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, United States of America. FAU - Porter, Lauren L AU - Porter LL AUID- ORCID: 0000-0003-2031-8326 AD - Howard Hughes Medical Institute, Janelia Research Campus, Ashburn, Virginia, United States of America. FAU - Harley, John B AU - Harley JB AD - Center for Autoimmune Genomics and Etiology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, United States of America. AD - Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, United States of America. AD - US Department of Veterans Affairs Medical Center, Cincinnati, Ohio, United States of America. FAU - Chua, Kek Heng AU - Chua KH AD - Department of Biomedical Science, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia. FAU - Zhang, Hong AU - Zhang H AD - Renal Division, Peking University First Hospital, Peking University Institute of Nephrology, Key Laboratory of Renal Disease, Ministry of Health of China, Beijing, China. AD - Key Laboratory of Chronic Kidney Disease Prevention and Treatment (Peking University), Ministry of Education, Beijing, China. FAU - Wakeland, Edward K AU - Wakeland EK AD - Department of Immunology, University of Texas Southwestern Medical Center, Dallas, Texas, United States of America. FAU - Tsao, Betty P AU - Tsao BP AUID- ORCID: 0000-0001-7938-5975 AD - Division of Rheumatology and Immunology, Department of Medicine, Medical University of South Carolina, Charleston, South Carolina, United States of America. FAU - Bae, Sang-Cheol AU - Bae SC AUID- ORCID: 0000-0003-4658-1093 AD - Department of Rheumatology, Hanyang University Hospital for Rheumatic Diseases, Seoul, Korea. FAU - Nath, Swapan K AU - Nath SK AUID- ORCID: 0000-0001-6013-9328 AD - Arthritis and Clinical Immunology Research Program, Oklahoma Medical Research Foundation, Oklahoma City, Oklahoma, United States of America. LA - eng GR - U01 AI130830/AI/NIAID NIH HHS/United States GR - R01 MD007909/MD/NIMHD NIH HHS/United States GR - R21 AR073941/AR/NIAMS NIH HHS/United States GR - R01 AR060366/AR/NIAMS NIH HHS/United States GR - P30 AR070549/AR/NIAMS NIH HHS/United States GR - R01 AI024717/AI/NIAID NIH HHS/United States GR - U01 HG008666/HG/NHGRI NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, Non-P.H.S. DEP - 20190425 PL - United States TA - PLoS Genet JT - PLoS genetics JID - 101239074 RN - 0 (Autoantibodies) RN - 0 (Histocompatibility Antigens Class I) RN - 0 (Histocompatibility Antigens Class II) SB - IM MH - Alleles MH - *Amino Acid Sequence MH - Amino Acid Substitution MH - Asian People MH - Autoantibodies/*immunology MH - *Disease Susceptibility MH - Female MH - Genetic Predisposition to Disease MH - Genetic Variation MH - Histocompatibility Antigens Class I/*chemistry/genetics/*immunology MH - Histocompatibility Antigens Class II/*chemistry/genetics/*immunology MH - Humans MH - Lupus Erythematosus, Systemic/*etiology MH - Male MH - Odds Ratio MH - Polymorphism, Single Nucleotide PMC - PMC6504188 COIS- The authors have declared that no competing interests exist. EDAT- 2019/04/26 06:00 MHDA- 2019/10/01 06:00 PMCR- 2019/04/25 CRDT- 2019/04/26 06:00 PHST- 2018/12/26 00:00 [received] PHST- 2019/03/13 00:00 [accepted] PHST- 2019/05/07 00:00 [revised] PHST- 2019/04/26 06:00 [pubmed] PHST- 2019/10/01 06:00 [medline] PHST- 2019/04/26 06:00 [entrez] PHST- 2019/04/25 00:00 [pmc-release] AID - PGENETICS-D-18-02419 [pii] AID - 10.1371/journal.pgen.1008092 [doi] PST - epublish SO - PLoS Genet. 2019 Apr 25;15(4):e1008092. doi: 10.1371/journal.pgen.1008092. eCollection 2019 Apr.