TY - JOUR
T1 - A large-scale genetic analysis reveals a strong contribution of the HLA class II region to giant cell arteritis susceptibility
AU - Carmona, F. David
AU - Mackie, Sarah L.
AU - Martín, Jose Ezequiel
AU - Taylor, John C.
AU - Vaglio, Augusto
AU - Eyre, Stephen
AU - Bossini-Castillo, Lara
AU - Castañeda, Santos
AU - Cid, Maria C.
AU - Hernández-Rodríguez, José
AU - Prieto-González, Sergio
AU - Solans, Roser
AU - Ramentol-Sintas, Marc
AU - González-Escribano, M. Francisca
AU - Ortiz-Fernández, Lourdes
AU - Morado, Inmaculada C.
AU - Narváez, Javier
AU - Miranda-Filloy, José A.
AU - Beretta, Lorenzo
AU - Lunardi, Claudio
AU - Cimmino, Marco A.
AU - Gianfreda, Davide
AU - Santilli, Daniele
AU - Ramirez, Giuseppe A.
AU - Soriano, Alessandra
AU - Muratore, Francesco
AU - Pazzola, Giulia
AU - Addimanda, Olga
AU - Wijmenga, Cisca
AU - Witte, Torsten
AU - Schirmer, Jan H.
AU - Moosig, Frank
AU - Schönau, Verena
AU - Franke, Andre
AU - Palm, Oyvind
AU - Molberg, Oyvind
AU - Diamantopoulos, Andreas P.
AU - Carette, Simon
AU - Cuthbertson, David
AU - Forbess, Lindsy J.
AU - Hoffman, Gary S.
AU - Khalidi, Nader A.
AU - Koening, Curry L.
AU - Langford, Carol A.
AU - McAlear, Carol A.
AU - Moreland, Larry
AU - Monach, Paul A.
AU - Pagnoux, Christian
AU - Seo, Philip
AU - Spiera, Robert
AU - Sreih, Antoine G.
AU - Warrington, Kenneth J.
AU - Ytterberg, Steven R.
AU - Gregersen, Peter K.
AU - Pease, Colin T.
AU - Gough, Andrew
AU - Green, Michael
AU - Hordon, Lesley
AU - Jarrett, Stephen
AU - Watts, Richard
AU - Levy, Sarah
AU - Patel, Yusuf
AU - Kamath, Sanjeet
AU - Dasgupta, Bhaskar
AU - Worthington, Jane
AU - Koeleman, Bobby P.C.
AU - De Bakker, Paul I.W.
AU - Barrett, Jennifer H.
AU - Salvarani, Carlo
AU - Merkel, Peter A.
AU - González-Gay, Miguel A.
AU - Morgan, Ann W.
AU - Martín, Javier
N1 - Funding Information:
The authors thank Sofía Vargas, Sonia García, Gema Robledo, Steve Martin, Lubna-Haroon Raashid, and Edward Flynn for their excellent technical assistance and the participants for kindly accepting their collaboration. Steve Rich, Stephen Suna Onengut-Gumuscu, and Wei-Min Chen are thanked for genotyping and quality control. Marta Conde-Jaldón is thanked for assisting in HLA typing. The Norwegian Systemic Vasculitis and Connective Tissue Disease Registry (NOSVAR) at Oslo University Hospital is acknowledged for providing data on the Norwegian cases. F.D.C., J.M., and M.A.G.-G. were supported by Instituto de Salud Carlos III (ISCIII), Spain, through the RETICS Program RD12/0009/0004 (RIER). M.C.C., J.H.-R., and S.P.-G. were supported by Ministerio de Economía y Competitividad, Spain (SAF 11/30073). S.L.M. received grant funding from Research into Ageing, a Wellcome Trust/AMS Starter Grant for Clinical Lecturers, the Leeds Teaching Hospitals Charitable Trustees, and the Mason Medical Research Foundation and is funded by a NIH Research Clinician Scientist Award. A.W.M., J.H.B., and J.C.T. were supported by the NIHR-Leeds Musculoskeletal Biomedical Research Unit and the Ann Wilks Memorial Fund. The Vasculitis Clinical Research Consortium (VCRC) received support from the United States National Institute of Arthritis and Musculoskeletal and Skin Diseases (U54AR057319), the National Center for Research Resources (U54 RR019497), the Office of Rare Diseases Research, and the National Center for Advancing Translational Science. The VCRC is part of the Rare Diseases Clinical Research Network (RDCRN). A.P.D. was funded by Agder Medforsk (non-profit research organization stationed in Southern Norway). T.W. was funded by the grant DFG KFO TP03.
Publisher Copyright:
© 2015 The American Society of Human Genetics.
PY - 2015/4/2
Y1 - 2015/4/2
N2 - We conducted a large-scale genetic analysis on giant cell arteritis (GCA), a polygenic immune-mediated vasculitis. A case-control cohort, comprising 1,651 case subjects with GCA and 15,306 unrelated control subjects from six different countries of European ancestry, was genotyped by the Immunochip array. We also imputed HLA data with a previously validated imputation method to perform a more comprehensive analysis of this genomic region. The strongest association signals were observed in the HLA region, with rs477515 representing the highest peak (p = 4.05 × 10-40, OR = 1.73). A multivariate model including class II amino acids of HLA-DRβ1 and HLA-DQα1 and one class I amino acid of HLA-B explained most of the HLA association with GCA, consistent with previously reported associations of classical HLA alleles like HLA-DRB1∗04. An omnibus test on polymorphic amino acid positions highlighted DRβ1 13 (p = 4.08 × 10-43) and HLA-DQα1 47 (p = 4.02 × 10-46), 56, and 76 (both p = 1.84 × 10-45) as relevant positions for disease susceptibility. Outside the HLA region, the most significant loci included PTPN22 (rs2476601, p = 1.73 × 10-6, OR = 1.38), LRRC32 (rs10160518, p = 4.39 × 10-6, OR = 1.20), and REL (rs115674477, p = 1.10 × 10-5, OR = 1.63). Our study provides evidence of a strong contribution of HLA class I and II molecules to susceptibility to GCA. In the non-HLA region, we confirmed a key role for the functional PTPN22 rs2476601 variant and proposed other putative risk loci for GCA involved in Th1, Th17, and Treg cell function.
AB - We conducted a large-scale genetic analysis on giant cell arteritis (GCA), a polygenic immune-mediated vasculitis. A case-control cohort, comprising 1,651 case subjects with GCA and 15,306 unrelated control subjects from six different countries of European ancestry, was genotyped by the Immunochip array. We also imputed HLA data with a previously validated imputation method to perform a more comprehensive analysis of this genomic region. The strongest association signals were observed in the HLA region, with rs477515 representing the highest peak (p = 4.05 × 10-40, OR = 1.73). A multivariate model including class II amino acids of HLA-DRβ1 and HLA-DQα1 and one class I amino acid of HLA-B explained most of the HLA association with GCA, consistent with previously reported associations of classical HLA alleles like HLA-DRB1∗04. An omnibus test on polymorphic amino acid positions highlighted DRβ1 13 (p = 4.08 × 10-43) and HLA-DQα1 47 (p = 4.02 × 10-46), 56, and 76 (both p = 1.84 × 10-45) as relevant positions for disease susceptibility. Outside the HLA region, the most significant loci included PTPN22 (rs2476601, p = 1.73 × 10-6, OR = 1.38), LRRC32 (rs10160518, p = 4.39 × 10-6, OR = 1.20), and REL (rs115674477, p = 1.10 × 10-5, OR = 1.63). Our study provides evidence of a strong contribution of HLA class I and II molecules to susceptibility to GCA. In the non-HLA region, we confirmed a key role for the functional PTPN22 rs2476601 variant and proposed other putative risk loci for GCA involved in Th1, Th17, and Treg cell function.
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U2 - 10.1016/j.ajhg.2015.02.009
DO - 10.1016/j.ajhg.2015.02.009
M3 - Article
C2 - 25817017
AN - SCOPUS:84926262586
SN - 0002-9297
VL - 96
SP - 565
EP - 580
JO - American Journal of Human Genetics
JF - American Journal of Human Genetics
IS - 4
ER -