PMID- 24656864 OWN - NLM STAT- MEDLINE DCOM- 20140530 LR - 20240109 IS - 1537-6605 (Electronic) IS - 0002-9297 (Print) IS - 0002-9297 (Linking) VI - 94 IP - 4 DP - 2014 Apr 3 TI - Fine mapping seronegative and seropositive rheumatoid arthritis to shared and distinct HLA alleles by adjusting for the effects of heterogeneity. PG - 522-32 LID - S0002-9297(14)00071-8 [pii] LID - 10.1016/j.ajhg.2014.02.013 [doi] AB - Despite progress in defining human leukocyte antigen (HLA) alleles for anti-citrullinated-protein-autoantibody-positive (ACPA(+)) rheumatoid arthritis (RA), identifying HLA alleles for ACPA-negative (ACPA(-)) RA has been challenging because of clinical heterogeneity within clinical cohorts. We imputed 8,961 classical HLA alleles, amino acids, and SNPs from Immunochip data in a discovery set of 2,406 ACPA(-) RA case and 13,930 control individuals. We developed a statistical approach to identify and adjust for clinical heterogeneity within ACPA(-) RA and observed independent associations for serine and leucine at position 11 in HLA-DRbeta1 (p = 1.4 x 10(-13), odds ratio [OR] = 1.30) and for aspartate at position 9 in HLA-B (p = 2.7 x 10(-12), OR = 1.39) within the peptide binding grooves. These amino acid positions induced associations at HLA-DRB1( *)03 (encoding serine at 11) and HLA-B( *)08 (encoding aspartate at 9). We validated these findings in an independent set of 427 ACPA(-) case subjects, carefully phenotyped with a highly sensitive ACPA assay, and 1,691 control subjects (HLA-DRbeta1 Ser11+Leu11: p = 5.8 x 10(-4), OR = 1.28; HLA-B Asp9: p = 2.6 x 10(-3), OR = 1.34). Although both amino acid sites drove risk of ACPA(+) and ACPA(-) disease, the effects of individual residues at HLA-DRbeta1 position 11 were distinct (p < 2.9 x 10(-107)). We also identified an association with ACPA(+) RA at HLA-A position 77 (p = 2.7 x 10(-8), OR = 0.85) in 7,279 ACPA(+) RA case and 15,870 control subjects. These results contribute to mounting evidence that ACPA(+) and ACPA(-) RA are genetically distinct and potentially have separate autoantigens contributing to pathogenesis. We expect that our approach might have broad applications in analyzing clinical conditions with heterogeneity at both major histocompatibility complex (MHC) and non-MHC regions. CI - Copyright (c) 2014 The American Society of Human Genetics. Published by Elsevier Inc. All rights reserved. FAU - Han, Buhm AU - Han B AD - Division of Genetics, Brigham & Women's Hospital and Harvard Medical School, Boston, MA 02115, USA; Program in Medical and Population Genetics, Broad Institute of Harvard and MIT, Cambridge, MA 02142, USA; Partners HealthCare Center for Personalized Genetic Medicine, Boston, MA 02115, USA. FAU - Diogo, Dorothee AU - Diogo D AD - Division of Genetics, Brigham & Women's Hospital and Harvard Medical School, Boston, MA 02115, USA; Program in Medical and Population Genetics, Broad Institute of Harvard and MIT, Cambridge, MA 02142, USA; Partners HealthCare Center for Personalized Genetic Medicine, Boston, MA 02115, USA; Division of Rheumatology, Immunology, and Allergy, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, 02115, USA. FAU - Eyre, Steve AU - Eyre S AD - Arthritis Research UK Epidemiology Unit, Musculoskeletal Research Group, University of Manchester, Manchester Academic Health Sciences Centre, Manchester M13 9PT, UK; NIHR Manchester Musculoskeletal Biomedical Research Unit, Central Manchester University Hospitals NHS Foundation Trust, Manchester Academic Health Sciences Centre, Manchester M13 9PT, UK. FAU - Kallberg, Henrik AU - Kallberg H AD - Rheumatology Unit, Department of Medicine, Karolinska Institutet and Karolinska University Hospital Solna, 171 76 Stockholm, Sweden. FAU - Zhernakova, Alexandra AU - Zhernakova A AD - Department of Rheumatology, Leiden University Medical Centre, 2300 RC Leiden, the Netherlands; Department of Genetics, University Medical Center Groningen and University of Groningen, 9700 RB Groningen, the Netherlands. FAU - Bowes, John AU - Bowes J AD - Arthritis Research UK Epidemiology Unit, Musculoskeletal Research Group, University of Manchester, Manchester Academic Health Sciences Centre, Manchester M13 9PT, UK; NIHR Manchester Musculoskeletal Biomedical Research Unit, Central Manchester University Hospitals NHS Foundation Trust, Manchester Academic Health Sciences Centre, Manchester M13 9PT, UK. FAU - Padyukov, Leonid AU - Padyukov L AD - Rheumatology Unit, Department of Medicine, Karolinska Institutet and Karolinska University Hospital Solna, 171 76 Stockholm, Sweden. FAU - Okada, Yukinori AU - Okada Y AD - Division of Genetics, Brigham & Women's Hospital and Harvard Medical School, Boston, MA 02115, USA; Program in Medical and Population Genetics, Broad Institute of Harvard and MIT, Cambridge, MA 02142, USA; Partners HealthCare Center for Personalized Genetic Medicine, Boston, MA 02115, USA; Division of Rheumatology, Immunology, and Allergy, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, 02115, USA. FAU - Gonzalez-Gay, Miguel A AU - Gonzalez-Gay MA AD - Rheumatology Division, Hospital Universitario Marques de Valdecilla, Instituto de Formacion e Investigacion Marques de Valdecilla, 39008 Santander, Spain. FAU - Rantapaa-Dahlqvist, Solbritt AU - Rantapaa-Dahlqvist S AD - Department of Public Health and Clinical Medicine and Department of Rheumatology, Umea University, 901 85 Umea, Sweden. FAU - Martin, Javier AU - Martin J AD - Instituto de Parasitologia y Biomedicina Lopez-Neyra, Consejo Superior de Investigaciones Cientificas, 18100 Armilla, Granada, Spain. FAU - Huizinga, Tom W J AU - Huizinga TW AD - Department of Rheumatology, Leiden University Medical Centre, 2300 RC Leiden, the Netherlands. FAU - Plenge, Robert M AU - Plenge RM AD - Merck Research Laboratories, Merck & Co. Inc., Boston, MA 02115, USA. FAU - Worthington, Jane AU - Worthington J AD - Arthritis Research UK Epidemiology Unit, Musculoskeletal Research Group, University of Manchester, Manchester Academic Health Sciences Centre, Manchester M13 9PT, UK; NIHR Manchester Musculoskeletal Biomedical Research Unit, Central Manchester University Hospitals NHS Foundation Trust, Manchester Academic Health Sciences Centre, Manchester M13 9PT, UK. FAU - Gregersen, Peter K AU - Gregersen PK AD - The Feinstein Institute for Medical Research, North Shore-Long Island Jewish Health System, Manhasset, NY 11030, USA. FAU - Klareskog, Lars AU - Klareskog L AD - Rheumatology Unit, Department of Medicine, Karolinska Institutet and Karolinska University Hospital Solna, 171 76 Stockholm, Sweden. FAU - de Bakker, Paul I W AU - de Bakker PI AD - Division of Genetics, Brigham & Women's Hospital and Harvard Medical School, Boston, MA 02115, USA; Program in Medical and Population Genetics, Broad Institute of Harvard and MIT, Cambridge, MA 02142, USA; Departments of Epidemiology and Medical Genetics, University Medical Center Utrecht, 3584 CG Utrecht, the Netherlands. FAU - Raychaudhuri, Soumya AU - Raychaudhuri S AD - Division of Genetics, Brigham & Women's Hospital and Harvard Medical School, Boston, MA 02115, USA; Program in Medical and Population Genetics, Broad Institute of Harvard and MIT, Cambridge, MA 02142, USA; Partners HealthCare Center for Personalized Genetic Medicine, Boston, MA 02115, USA; Division of Rheumatology, Immunology, and Allergy, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, 02115, USA; Arthritis Research UK Epidemiology Unit, Musculoskeletal Research Group, University of Manchester, Manchester Academic Health Sciences Centre, Manchester M13 9PT, UK. Electronic address: soumya@broadinstitute.org. LA - eng GR - 1R01AR062886-01/AR/NIAMS NIH HHS/United States GR - K08AR055688/AR/NIAMS NIH HHS/United States GR - 1R01AR063759-01A1/AR/NIAMS NIH HHS/United States GR - U01 GM092691/GM/NIGMS NIH HHS/United States GR - K08 AR055688/AR/NIAMS NIH HHS/United States GR - MANMKBRU-2012-1/DH_/Department of Health/United Kingdom GR - 5U01GM092691-04/GM/NIGMS NIH HHS/United States GR - R01 AR063759/AR/NIAMS NIH HHS/United States GR - R01 AR062886/AR/NIAMS NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't DEP - 20140320 PL - United States TA - Am J Hum Genet JT - American journal of human genetics JID - 0370475 RN - 0 (HLA Antigens) SB - IM MH - *Alleles MH - Arthritis, Rheumatoid/*genetics MH - Case-Control Studies MH - *Genetic Heterogeneity MH - HLA Antigens/*genetics MH - Humans PMC - PMC3980428 EDAT- 2014/03/25 06:00 MHDA- 2014/05/31 06:00 PMCR- 2014/10/03 CRDT- 2014/03/25 06:00 PHST- 2013/12/16 00:00 [received] PHST- 2014/02/24 00:00 [accepted] PHST- 2014/03/25 06:00 [entrez] PHST- 2014/03/25 06:00 [pubmed] PHST- 2014/05/31 06:00 [medline] PHST- 2014/10/03 00:00 [pmc-release] AID - S0002-9297(14)00071-8 [pii] AID - 10.1016/j.ajhg.2014.02.013 [doi] PST - ppublish SO - Am J Hum Genet. 2014 Apr 3;94(4):522-32. doi: 10.1016/j.ajhg.2014.02.013. Epub 2014 Mar 20.