1. Interaction between ERAP1 and HLA-B27 in ankylosing spondylitis implicates peptide handling in the mechanism for HLA-B27 in disease susceptibility
- Author
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Evans, Dm, Spencer, Cc, Pointon, Jj, Su, Z, Harvey, D, Kochan, G, Oppermann, U, Dilthey, A, Pirinen, M, Stone, Ma, Appleton, L, Moutsianas, L, Leslie, S, Wordsworth, T, Kenna, Tj, Karaderi, T, Thomas, Gp, Ward, Mm, Weisman, Mh, Farrar, C, Bradbury, La, Danoy, P, Inman, Rd, Maksymowych, W, Gladman, D, Rahman, P, Spondyloarthritis Research Consortium of Canada, Morgan, A, Marzo Ortega, H, Bowness, P, Gaffney, K, Gaston, Js, Smith, M, Bruges Armas, J, Couto, Ar, Sorrentino, Rosa, Paladini, Fabiana, Ferreira, Ma, Xu, H, Liu, Y, Jiang, L, Lopez Larrea, C, Díaz Peña, R, López Vázquez, A, Zayats, T, Band, G, Bellenguez, C, Blackburn, H, Blackwell, Jm, Bramon, E, Bumpstead, Sj, Casas, Jp, Corvin, A, Craddock, N, Deloukas, P, Dronov, S, Duncanson, A, Edkins, S, Freeman, C, Gillman, M, Gray, E, Gwilliam, R, Hammond, N, Hunt, Se, Jankowski, J, Jayakumar, A, Langford, C, Liddle, J, Markus, Hs, Mathew, Cg, Mccann, Ot, Mccarthy, Mi, Palmer, Cn, Peltonen, L, Plomin, R, Potter, Sc, Rautanen, A, Ravindrarajah, R, Ricketts, M, Samani, N, Sawcer, Sj, Strange, A, Trembath, Rc, Viswanathan, Ac, Waller, M, Weston, P, Whittaker, P, Widaa, S, Wood, Nw, Mcvean, G, Reveille, Jd, Wordsworth, Bp, Brown, Ma, Donnelly, P, Australo Anglo American Spondyloarthritis Consortium, and Wellcome Trust Case Control Consortium, 2
- Subjects
Receptors, Peptide ,HLA-B27, ERAP1, ANKYLOSING SPONDYLITIS ,Inflammatory arthritis ,Population ,Genome-wide association study ,Human leukocyte antigen ,Biology ,CD8-Positive T-Lymphocytes ,Bioinformatics ,Aminopeptidases ,White People ,Minor Histocompatibility Antigens ,Meta-Analysis as Topic ,Genetics ,medicine ,Humans ,Spondylitis, Ankylosing ,education ,Spondylitis ,HLA-B27 Antigen ,education.field_of_study ,Ankylosing spondylitis ,HLA-B27 ,Polymorphism, Genetic ,Interleukin-12 Subunit p40 ,Membrane Proteins ,medicine.disease ,Endoplasmic reticulum aminopeptidase 2 ,Peptide Fragments ,CARD Signaling Adaptor Proteins ,Core Binding Factor Alpha 3 Subunit ,Latent TGF-beta Binding Proteins ,Receptors, Tumor Necrosis Factor, Type I ,Case-Control Studies ,Immunology ,Disease Susceptibility ,Receptors, Prostaglandin E, EP4 Subtype ,Genome-Wide Association Study - Abstract
Ankylosing spondylitis is a common form of inflammatory arthritis predominantly affecting the spine and pelvis that occurs in approximately 5 out of 1,000 adults of European descent. Here we report the identification of three variants in the RUNX3, LTBR-TNFRSF1A and IL12B regions convincingly associated with ankylosing spondylitis (P < 5 × 10(-8) in the combined discovery and replication datasets) and a further four loci at PTGER4, TBKBP1, ANTXR2 and CARD9 that show strong association across all our datasets (P < 5 × 10(-6) overall, with support in each of the three datasets studied). We also show that polymorphisms of ERAP1, which encodes an endoplasmic reticulum aminopeptidase involved in peptide trimming before HLA class I presentation, only affect ankylosing spondylitis risk in HLA-B27-positive individuals. These findings provide strong evidence that HLA-B27 operates in ankylosing spondylitis through a mechanism involving aberrant processing of antigenic peptides.
- Published
- 2011