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Sequence variants in IL10, ARPC2 and multiple other loci contribute to ulcerative colitis susceptibility

Andre Franke, Tobias Balschun, Tom H. Karlsen, Jurgita Sventoraityte, Susanna Nikolaus, Gabriele Mayr, Francisco S. Domingues, Mario Albrecht, Michael Nothnagel, David Ellinghaus, Christian Sina, Clive M. Onnie, Rinse K. Weersma, Pieter C.F. Stokkers, Cisca Wijmenga, Maria Gazouli, David Strachan, Wendy L. McArdle, Séverine Vermeire, Paul RutgeertsPhilip Rosenstiel, Michael Krawczak, Morten H. Vatn, Christopher G. Mathew, Stefan Schreiber*

*Corresponding author for this work

Abstract

Inflammatory bowel disease (IBD) typically manifests as either ulcerative colitis (UC) or Crohn's disease (CD). Systematic identification of susceptibility genes for IBD has thus far focused mainly on CD, and little is known about the genetic architecture of UC. Here we report a genome-wide association study with 440,794 SNPs genotyped in 1,167 individuals with UC and 777 healthy controls. Twenty of the most significantly associated SNPs were tested for replication in three independent European case-control panels comprising a total of 1,855 individuals with UC and 3,091 controls. Among the four consistently replicated markers, SNP rs3024505 immediately flanking the IL10 (interleukin 10) gene on chromosome 1q32.1 showed the most significant association in the combined verification samples (P = 1.35 × 10 -12; OR = 1.46 (1.31-1.62)). The other markers were located in ARPC2 and in the HLA-BTNL2 region. Association between rs3024505 and CD (1,848 cases, 1,804 controls) was weak (P = 0.013; OR = 1.17 (1.01-1.34)). IL10 is an immunosuppressive cytokine that has long been proposed to influence IBD pathophysiology. Our findings strongly suggest that defective IL10 function is central to the pathogenesis of the UC subtype of IBD.

Original languageEnglish
JournalNature Genetics
Volume40
Issue number11
Pages (from-to)1319-1323
Number of pages5
ISSN1061-4036
DOIs
Publication statusPublished - 11.2008

Funding

We wish to thank all individuals with IBD, families and physicians for their cooperation. We gratefully acknowledge the cooperation of the German Crohn and Colitis Foundation (Deutsche Morbus Crohn und Colitis Vereinigung e.V.), the BMBF competence network ‘‘IBD’’ and of the contributing gastroenterologists. Finally, we wish to thank T. Wesse, T. Henke, A. Dietsch, R. Vogler, C.v.d. Lancken and M. Friskovec for expert technical help. We thank T. Wienker and M. Steffens (IMBIE, University of Bonn) for performing the quality control of the GWAS datasets. We thank B.A. Lie and the Norwegian Bone Marrow Donor Registry at Rikshospitalet University Hospital, Oslo, for contributing the healthy Norwegian control population. This study was supported by the German Ministry of Education and Research (BMBF) through the

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 3 - Good Health and Well-being
    SDG 3 Good Health and Well-being

Research Areas and Centers

  • Academic Focus: Center for Brain, Behavior and Metabolism (CBBM)

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  • EXC 306: Inflammation at Interfaces

    Schreiber, S. (Speaker), Bosch, T. C. G. (Project Staff), Ehlers, S. (Project Staff), Erdmann, J. (Project Staff), Ernst, R. (Project Staff), Franke, A. (Project Staff), Gross, W. (Project Staff), Hilgenfeld, R. (Project Staff), Kabelitz, D. (Project Staff), Köhl, J. (Project Staff), Manz, R. (Project Staff), Nebel, A. (Project Staff), Niemann, S. (Project Staff), Rabe, K. F. (Project Staff), Rimbach, G. (Project Staff), Rose-John, S. (Project Staff), Rosenstiel, P. C. (Project Staff), Saftig, P. (Project Staff), Schaible, U. (Project Staff), Schröder, J.-M. (Project Staff), Schütze, S. (Project Staff), Siebert, R. (Project Staff), Tautz, D. (Project Staff), Weidinger, S. (Project Staff) & Zillikens, D. (Project Staff)

    01.01.0731.12.18

    Project: DFG Joint ResearchCluster of Excellence

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