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Dense Genotyping of Immune-Related Loci Implicates Host Responses to Microbial Exposure in Behcet's Disease Susceptibility Publisher Pubmed



Takeuchi M1, 2 ; Mizuki N2 ; Meguro A2 ; Ombrello MJ3 ; Kirino Y4 ; Satorius C1 ; Le J1 ; Blake M5 ; Erer B1 ; Kawagoe T2 ; Ustek D6 ; Tugaltutkun I7 ; Seyahi E8 ; Ozyazgan Y9 Show All Authors
Authors
  1. Takeuchi M1, 2
  2. Mizuki N2
  3. Meguro A2
  4. Ombrello MJ3
  5. Kirino Y4
  6. Satorius C1
  7. Le J1
  8. Blake M5
  9. Erer B1
  10. Kawagoe T2
  11. Ustek D6
  12. Tugaltutkun I7
  13. Seyahi E8
  14. Ozyazgan Y9
  15. Sousa I10, 11
  16. Davatchi F12
  17. Francisco V10, 11
  18. Shahram F12
  19. Abdollahi BS12
  20. Nadji A12
  21. Shafiee NM12
  22. Ghaderibarmi F12
  23. Ohno S13
  24. Ueda A4
  25. Ishigatsubo Y4
  26. Gadina M5
  27. Oliveira SA10, 11
  28. Gul A14
  29. Kastner DL1
  30. Remmers EF1
Show Affiliations
Authors Affiliations
  1. 1. Inflammatory Disease Section, National Human Genome Research Institute, US National Institutes of Health, Bethesda, MD, United States
  2. 2. Department of Ophthalmology and Visual Science, Yokohama City University Graduate School of Medicine, Yokohama, Japan
  3. 3. Translational Genetics and Genomics Unit, National Institute of Arthritis and Musculoskeletal and Skin Diseases, US National Institutes of Health, Bethesda, MD, United States
  4. 4. Department of Stem Cell and Immune Regulation, Yokohama City University Graduate School of Medicine, Yokohama, Japan
  5. 5. Translational Immunology Section, National Institute of Arthritis and Musculoskeletal and Skin Diseases, US National Institutes of Health, Bethesda, MD, United States
  6. 6. Department of Genetics, Institute for Experimental Medicine, Istanbul University, Istanbul, Turkey
  7. 7. Department of Ophthalmology, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
  8. 8. Department of Internal Medicine, Division of Rheumatology, Cerrahpas A Faculty of Medicine, Istanbul University, Istanbul, Turkey
  9. 9. Department of Ophthalmology, Cerrahpas A Faculty of Medicine, Istanbul University, Istanbul, Turkey
  10. 10. Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
  11. 11. Instituto Gulbenkian de Ciencia, Oeiras, Portugal
  12. 12. Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran
  13. 13. Department of Ophthalmology, Hokkaido University Graduate School of Medicine, Sapporo, Japan
  14. 14. Department of Internal Medicine, Division of Rheumatology, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey

Source: Nature Genetics Published:2017


Abstract

We analyzed 1,900 Turkish Behcet's disease cases and 1,779 controls genotyped with the Immunochip. The most significantly associated SNP was rs1050502, a tag SNP for HLA-B∗51. In the Turkish discovery set, we identified three new risk loci, IL1A-IL1B, IRF8, and CEBPB-PTPN1, with genome-wide significance (P < 5 × 10-8) by direct genotyping and ADO-EGR2 by imputation. We replicated the ADO-EGR2, IRF8, and CEBPB-PTPN1 loci by genotyping 969 Iranian cases and 826 controls. Imputed data in 608 Japanese cases and 737 controls further replicated ADO-EGR2 and IRF8, and meta-analysis additionally identified RIPK2 and LACC1. The disease-associated allele of rs4402765, the lead marker at IL1A-IL1B, was associated with both decreased IL-1α and increased IL-1β production. ABO non-secretor genotypes for two ancestry-specific FUT2 SNPs showed strong disease association (P = 5.89 × 10-15). Our findings extend the list of susceptibility genes shared with Crohn's disease and leprosy and implicate mucosal factors and the innate immune response to microbial exposure in Behcet's disease susceptibility.
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