Interaction between ERAP1 and HLA-B27 in ankylosing spondylitis implicates peptide handling in the mechanism for HLA-B27 in disease susceptibility

  • David M. Evans
  • , Chris C. A. Spencer
  • , Jennifer J. Pointon
  • , Zhan Su
  • , David Harvey
  • , Grazyna Kochan
  • , Udo Opperman
  • , Alexander Dilthey
  • , Matti Pirinen
  • , Millicent A. Stone
  • , Louise Appleton
  • , Loukas Moutsianas
  • , Stephen Leslie
  • , Tom Wordsworth
  • , Tony J. Kenna
  • , Tugce Karaderi
  • , Gethin P. Thomas
  • , Michael M. Ward
  • , Michael H. Weisman
  • , Claire Farrar
  • Linda A. Bradbury, Patrick Danoy, Robert D. Inman, Walter Maksymowych, Dafna Gladman, Proton Rahman, Ann Morgan, Helena Marzo-Ortega, Paul Bowness, Karl Gaffney, J. S. Hill Gaston, Malcolm Smith, Jacome Bruges-Armas, Ana-Rita Couto, Rosa Sorrentino, Fabiana Paladini, Manuel A. Ferreira, Huji Xu, Yu Liu, Lei Jiang, Carlos Lopez-Larrea, Roberto Diaz-Pena, Antonio Lopez-Vazquez, Tetyana Zayats, Gavin Band, Celine Bellenguez, Hannah Blackburn, Jenefer M. Blackwell, Elvira Bramon, Colin N. A. Palmer, Wellcome Trust Case Control Consor, Australo-Anglo-Amer Spondyloarthri, Spondyloarthrit Res Consortium Can

    Research output: Contribution to journalArticlepeer-review

    762 Citations (Scopus)

    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 x 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 x 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.

    Original languageEnglish
    Pages (from-to)761-767
    Number of pages7
    JournalNature Genetics
    Volume43
    Issue number8
    DOIs
    Publication statusPublished - Aug 2011

    Keywords

    • GENOME-WIDE ASSOCIATION
    • INFLAMMATORY-BOWEL-DISEASE
    • GENETIC ASSOCIATION
    • TRIMS PRECURSORS
    • AMINOPEPTIDASE
    • RISK
    • HLA
    • POPULATION
    • PROMOTES
    • CELLS

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