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Bank S, Skytt Andersen P, Burisch J, Pedersen N, Roug S, Galsgaard J, Ydegaard Turino S, Broder Brodersen J, Rashid S, Kaiser Rasmussen B, Avlund S, Bastholm Olesen T, Jürgen Hoffmann H, Kragh Thomsen M, Østergaard Thomsen V, Frydenberg M, Andersen Nexø B, Sode J, Vogel U, Andersen V. Polymorphisms in the inflammatory pathway genes TLR2, TLR4, TLR9, LY96, NFKBIA, NFKB1, TNFA, TNFRSF1A, IL6R, IL10, IL23R, PTPN22, and PPARG are associated with susceptibility of inflammatory bowel disease in a Danish cohort. PLoS One 2014; 9:e98815. [PMID: 24971461 PMCID: PMC4074037 DOI: 10.1371/journal.pone.0098815] [Citation(s) in RCA: 85] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2014] [Accepted: 05/07/2014] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND The inflammatory bowel diseases (IBD), Crohn's disease (CD) and ulcerative colitis (UC), result from the combined effects of susceptibility genes and environmental factors. Polymorphisms in genes regulating inflammation may explain part of the genetic heritage. METHODS Using a candidate gene approach, 39 mainly functional single nucleotide polymorphisms (SNPs) in 26 genes regulating inflammation were assessed in a clinical homogeneous group of severely diseased patients consisting of 624 patients with CD, 411 patients with UC and 795 controls. The results were analysed using logistic regression. RESULTS Sixteen polymorphisms in 13 genes involved in regulation of inflammation were associated with risk of CD and/or UC (p ≤ 0.05). The polymorphisms TLR2 (rs1816702), NFKB1 (rs28362491), TNFRSF1A (rs4149570), IL6R (rs4537545), IL23R (rs11209026) and PTPN22 (rs2476601) were associated with risk of CD and the polymorphisms TLR2 (rs1816702), TLR4 (rs1554973 and rs12377632), TLR9 (rs352139), LY96 (rs11465996), NFKBIA (rs696), TNFA (rs1800629), TNFRSF1A (rs4149570), IL10 (rs3024505), IL23R (rs11209026), PTPN22 (rs2476601) and PPARG (rs1801282) were associated with risk of UC. When including all patients (IBD) the polymorphisms TLR2 (rs4696480 and rs1816702), TLR4 (rs1554973 and rs12377632), TLR9 (rs187084), TNFRSF1A (rs4149570), IL6R (rs4537545), IL10 (rs3024505), IL23R (rs11209026) and PTPN22 (rs2476601) were associated with risk. After Bonferroni correction for multiple testing, both the homozygous and the heterozygous variant genotypes of IL23R G>A(rs11209026) (OR(CD,adj): 0.38, 95% CI: 0.21-0.67, p = 0.03; OR(IBD,adj) 0.43, 95% CI: 0.28-0.67, p = 0.007) and PTPN22 1858 G>A(rs2476601) (OR(CD,unadj) 0.54, 95% CI: 0.41-0.72, p = 7*10-4; OR(IBD,unadj): 0.61, 95% CI: 0.48-0.77, p = 0.001) were associated with reduced risk of CD. CONCLUSION The biological effects of the studied polymorphisms suggest that genetically determined high inflammatory response was associated with increased risk of CD. The many SNPs found in TLRs suggest that the host microbial composition or environmental factors in the gut are involved in risk of IBD in genetically susceptible individuals.
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Affiliation(s)
- Steffen Bank
- Medical Department, Viborg Regional Hospital, Viborg, Denmark
- Biomedicine, University of Aarhus, Aarhus, Denmark
| | - Paal Skytt Andersen
- Microbiology and Infection Control, Statens Serum Institut, Copenhagen, Denmark
| | - Johan Burisch
- Department of Gastroenterology, Herlev Hospital, Herlev, Denmark
| | - Natalia Pedersen
- Department of Gastroenterology, Herlev Hospital, Herlev, Denmark
| | - Stine Roug
- Department of Gastroenterology, Hvidovre Hospital, Hvidovre, Denmark
| | | | | | | | - Shaista Rashid
- Medical Department, Bispebjerg Hospital, Bispebjerg, Denmark
| | | | - Sara Avlund
- Medical Department V, Aarhus University Hospital, Aarhus, Denmark
| | | | - Hans Jürgen Hoffmann
- Department of Respiratory Diseases B, Institute for Clinical Medicine, Aarhus University Hospital, Aarhus, Denmark
| | | | | | - Morten Frydenberg
- Section of Biostatistics, Department of Public health, Aarhus University, Aarhus, Denmark
| | | | - Jacob Sode
- Institute of Regional Health Research, University of Southern Denmark, Odense, Denmark
- Clinical Biochemistry, Immunology & Genetics, Statens Serum Institut, Copenhagen, Denmark
- Department of Rheumatology, Frederiksberg Hospital, Frederiksberg, Denmark
| | - Ulla Vogel
- National Research Centre for the Working Environment, Copenhagen, Denmark
| | - Vibeke Andersen
- Medical Department, Viborg Regional Hospital, Viborg, Denmark
- Institute of Regional Health Research, University of Southern Denmark, Odense, Denmark
- Organ Centre, Hospital of Southern Jutland Aabenraa, Aabenraa, Denmark
- OPEN Odense Patient data Explorative Network, Odense University Hospital, Odense, Denmark
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Szamosi T, Lakatos PL, Szilvasi A, Lakatos L, Kovacs A, Molnar T, Altorjay I, Papp M, Szabo O, Satori A, Tulassay Z, Miheller P, Horvath HC, Papp J, Tordai A, Andrikovics H. The 3'UTR NFKBIA variant is associated with extensive colitis in Hungarian IBD patients. Dig Dis Sci 2009; 54:351-9. [PMID: 18716880 DOI: 10.1007/s10620-008-0351-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2008] [Accepted: 05/15/2008] [Indexed: 12/09/2022]
Abstract
PURPOSE In previous studies the NFKBIA 3'UTR (untranslated region) AA genotype was associated with Crohn's disease (CD), while the NFKB1-94ins/delATTG mutation increased the risk for ulcerative colitis (UC). The aim of our study was to investigate these two polymorphisms and patients' response to medical therapy and/or disease phenotype in Hungarian inflammatory bowel disease (IBD) patients. METHODS NFKBIA 3'UTR- and NFKB1-94ins/delATTG polymorphisms were investigated in 415 unrelated IBD patients (CD: 266 patients, mean age 35.2 +/- 12.1 years, duration 8.7 +/- 7.5 years; UC patients: 149, mean age 44.4 +/- 15.4 years, duration 10.7 +/- 8.9 years) and 149 controls by PCR-restriction fragment length polymorphism (RFLP) analysis. Detailed clinical phenotypes were determined by reviewing the medical charts. RESULTS The NFKBIA 3'UTR and NFKB1-94ins/delATTG genotypes and allele frequencies were not significantly different among IBD and controls. In patients with UC, the 3'UTR GG genotype was associated with extensive colitis (55.3 vs. 29.4%, odds ratio 2.97, 95% confidence interval 1.45-6.08). The presence of variant alleles did not predict response to steroids, infliximab, or need for surgery. CONCLUSIONS The NFKBIA 3'UTR GG genotype was associated with an increased risk for extensive colitis in Hungarian patients. In contrast, variant alleles did not predict response to medical therapy or need for surgery.
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Affiliation(s)
- Tamas Szamosi
- 1st Department of Medicine, Semmelweis University, Koranyi st. 2/A, 1083, Budapest, Hungary
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