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Li Y, Chen P, Sun J, Huang J, Tie H, Li L, Li H, Ren G. Meta-analysis of associations between DLG5 R30Q and P1371Q polymorphisms and susceptibility to inflammatory bowel disease. Sci Rep 2016; 6:33550. [PMID: 27633114 PMCID: PMC5025715 DOI: 10.1038/srep33550] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2016] [Accepted: 08/30/2016] [Indexed: 01/01/2023] Open
Abstract
Growing evidence from recent studies has demonstrated an association between inflammatory bowel disease (IBD) susceptibility and two polymorphisms of DLG5 R30Q (rs1248696) and P1371Q (rs2289310), but the results remain controversial. We conducted a meta-analysis including a total of 22 studies with 10,878 IBD patients and 7917 healthy controls for R30Q and 5277 IBD cases and 4367 controls for P1371Q in order to systematically assess their association with the disease. The results indicated that R30Q was significantly associated with reduced susceptibility to IBD in Europeans by allelic and dominant comparisons, but not in overall population. No significant association was found between R30Q and Crohn's disease (CD) or ulcerative colitis (UC). P1371Q was associated with increased risk of IBD in Europeans and Americans. On the contrary, a decreased risk of IBD was observed in Asian population for P1371Q. In disease subgroup analysis, we found that P1371Q was also significantly associated with CD, but this relationship was not present for UC. In conclusion, our results strongly suggest that the both polymorphisms of DLG5 are correlated with IBD susceptibility in an ethnic-specific manner. Additional well-designed studies with large and diverse cohorts are needed to further strengthen our findings.
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Affiliation(s)
- Yunhai Li
- Chongqing Key Laboratory of Molecular Oncology and Epigenetics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Ping Chen
- Department of Rheumatology, Daping Hospital, Third Military Medical University, Chongqing, China
| | - Jiazheng Sun
- Chongqing Key Laboratory of Molecular Oncology and Epigenetics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Jing Huang
- Chongqing Key Laboratory of Molecular Oncology and Epigenetics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Hongtao Tie
- Department of Cardiothoracic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Liangliang Li
- Department of Rheumatology, Daping Hospital, Third Military Medical University, Chongqing, China
| | - Hongzhong Li
- Chongqing Key Laboratory of Molecular Oncology and Epigenetics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Guosheng Ren
- Chongqing Key Laboratory of Molecular Oncology and Epigenetics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
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Wolters VM, Verbeek WHM, Zhernakova A, Onland-Moret C, Schreurs MWJ, Monsuur AJ, Verduijn W, Wijmenga C, Mulder CJJ. The MYO9B gene is a strong risk factor for developing refractory celiac disease. Clin Gastroenterol Hepatol 2007; 5:1399-405, 1405.e1-2. [PMID: 17967566 DOI: 10.1016/j.cgh.2007.08.018] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND & AIMS Celiac disease (CD) is associated with HLA-DQ2 and HLA-DQ8 and has been linked to genetic variants in the MYO9B gene on chromosome 19. HLA-DQ2 homozygosity is associated with complications of CD such as refractory celiac disease type II (RCD II) and enteropathy-associated T-cell lymphoma (EATL). We investigated whether MYO9B also predisposes to RCD II and EATL. METHODS Genotyping of MYO9B and molecular HLA-DQ2 typing were performed on 62 RCD II and EATL patients, 421 uncomplicated CD patients, and 1624 controls. RESULTS One single nucleotide polymorphism in MYO9B showed a significantly different allele distribution in RCD II and EATL patients compared with controls (P = .00002). The rs7259292 T allele was significantly more frequent in RCD II and EATL patients compared with CD patients (P = .0003; odds ratio [OR], 3.61; 95% confidence interval [CI], 1.78-7.31). The frequency of the haplotype carrying the T allele of this single nucleotide polymorphism was significantly increased in RCD II and EATL patients (11%), compared with controls (2%) and CD patients (3%) (OR, 6.76; 95% CI, 3.40-13.46; P = 2.27E-09 and OR, 4.22; 95% CI, 1.95-9.11; P = .0001, respectively). Both MYO9B rs7259292 and HLA-DQ2 homozygosity increase the risk for RCD II and EATL to a similar extent when compared with uncomplicated CD patients (OR, 4.3; 95% CI, 1.9-9.8 and OR, 5.4; 95% CI, 3.0-9.6, respectively), but there was no evidence for any interaction between these 2 risk factors. CONCLUSIONS We show that both MYO9B and HLA-DQ2 homozygosity might be involved in the prognosis of CD and the chance of developing RCD II and EATL.
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Affiliation(s)
- Victorien M Wolters
- Department of Pediatric Gastroenterology, University Medical Centre Utrecht, Utrecht, The Netherlands
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Browning BL, Huebner C, Petermann I, Demmers P, McCulloch A, Gearry RB, Barclay ML, Shelling AN, Ferguson LR. Association of DLG5 variants with inflammatory bowel disease in the New Zealand Caucasian population and meta-analysis of the DLG5 R30Q variant. Inflamm Bowel Dis 2007; 13:1069-76. [PMID: 17455201 DOI: 10.1002/ibd.20157] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
BACKGROUND Variants in the DLG5 gene have been associated with inflammatory bowel disease (IBD) in samples from some, but not all populations. In particular, 2 nonsynonymous single-nucleotide polymorphisms (SNPs), R30Q (rs1248696) and P1371Q (rs2289310), have been associated with an increased risk of IBD, and a common haplotype (called haplotype "A") has been associated with reduced risk. METHODS We genotyped R30Q, P1371Q, and a haplotype A tagging SNP (rs2289311) in a New Zealand Caucasian cohort of 389 Crohn's disease (CD) patients, 406 ulcerative colitis (UC) patients, and 416 population controls. Each SNP was tested for association with disease susceptibility and clinical phenotypes. We also performed a meta-analysis of R30Q data from published association studies. RESULTS The haplotype A tagging SNP was associated with reduced risk of IBD at the 0.05 significance level (P=0.036) with an allelic odds ratio of 0.83 (95% confidence interval [CI]: 0.69-0.99). Association with haplotype A was strongest (odds ratio approximately 0.57) in UC patients with familial IBD or extraintestinal manifestations. The R30Q and P1371Q polymorphisms were not significantly associated with UC, CD, or IBD. Analysis of male and female data did not find any gender-specific associations. Meta-analysis gave no evidence of association of R30Q with IBD. CONCLUSIONS Meta-analysis demonstrates that the minor allele of R30Q is not a risk factor for IBD across populations. This study provides some evidence that DLG5 haplotype A is associated with reduced risk of IBD in the New Zealand Caucasian population, but this association will need to be replicated in an independent sample.
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Affiliation(s)
- Brian L Browning
- Discipline of Nutrition, Department of Statistics, University of Auckland, New Zealand, and Department of Gastroenterology, Box Hill Hospital, Monash, Australia.
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Tremelling M, Cummings F, Fisher SA, Mansfield J, Gwilliam R, Keniry A, Nimmo ER, Drummond H, Onnie CM, Prescott NJ, Sanderson J, Bredin F, Berzuini C, Forbes A, Lewis CM, Cardon L, Deloukas P, Jewell D, Mathew CG, Parkes M, Satsangi J. IL23R variation determines susceptibility but not disease phenotype in inflammatory bowel disease. Gastroenterology 2007; 132:1657-64. [PMID: 17484863 PMCID: PMC2696256 DOI: 10.1053/j.gastro.2007.02.051] [Citation(s) in RCA: 144] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2006] [Accepted: 02/08/2007] [Indexed: 02/06/2023]
Abstract
BACKGROUND & AIMS Identification of inflammatory bowel disease (IBD) susceptibility genes is key to understanding pathogenic mechanisms. Recently, the North American IBD Genetics Consortium provided compelling evidence for an association between ileal Crohn's disease (CD) and the IL23R gene using genome-wide association scanning. External replication is a priority, both to confirm this finding in other populations and to validate this new technique. We tested for association between IL23R and IBD in a large independent UK panel to determine the size of the effect and explore subphenotype correlation and interaction with CARD15. METHODS Eight single nucleotide polymorphism markers in IL23R tested in the North American study were genotyped in 1902 cases of Crohn's disease (CD), 975 cases of ulcerative colitis (UC), and 1345 controls using MassARRAY. Data were analyzed using chi(2) statistics, and subgroup association was sought. RESULTS A highly significant association with CD was observed, with the strongest signal at coding variant Arg381Gln (allele frequency, 2.5% in CD vs 6.2% in controls [P = 1.1 x 10(-12)]; odds ratio, 0.38; 95% confidence interval, 0.29-0.50). A weaker effect was seen in UC (allele frequency, 4.6%; odds ratio, 0.73; 95% confidence interval, 0.55-0.96). Analysis accounting for Arg381Gln suggested that other loci within IL23R also influence IBD susceptibility. Within CD, there were no subphenotype associations or evidence of interaction with CARD15. CONCLUSIONS This study shows an association between IL23R and all subphenotypes of CD with a smaller effect on UC. This extends the findings of the North American study, providing clear evidence that genome-wide association scanning can successfully identify true complex disease genes.
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Affiliation(s)
- Mark Tremelling
- IBD Research Group, Addenbrooke’s Hospital, University of Cambridge, Cambridge, England
- Centre for Gastroenterology and Nutrition, University College, London, England
| | - Fraser Cummings
- Gastroenterology Unit, Radcliffe Infirmary, University of Oxford, Oxford, England
- Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, England
- Centre for Gastroenterology and Nutrition, University College, London, England
| | - Sheila A. Fisher
- Division of Genetics and Molecular Medicine, Guy’s, King’s College and St Thomas’ School of Medicine, London, England
- Centre for Gastroenterology and Nutrition, University College, London, England
| | - John Mansfield
- Faculty of Medical Sciences, University of Newcastle, Newcastle upon Tyne, England
- Centre for Gastroenterology and Nutrition, University College, London, England
| | - Rhian Gwilliam
- Wellcome Trust Sanger Institute, Hinxton, Cambridge, England
- Centre for Gastroenterology and Nutrition, University College, London, England
| | - Andrew Keniry
- Wellcome Trust Sanger Institute, Hinxton, Cambridge, England
- Centre for Gastroenterology and Nutrition, University College, London, England
| | - Elaine R. Nimmo
- Department of Gastroenterology, University of Edinburgh, and Gastrointestinal Unit, Western General Hospital, Edinburgh, Scotland
- Centre for Gastroenterology and Nutrition, University College, London, England
| | - Hazel Drummond
- Department of Gastroenterology, University of Edinburgh, and Gastrointestinal Unit, Western General Hospital, Edinburgh, Scotland
- Centre for Gastroenterology and Nutrition, University College, London, England
| | - Clive M. Onnie
- Department of Medical and Molecular Genetics, King’s College London School of Medicine, Guy’s Hospital, London, United Kingdom
- Centre for Gastroenterology and Nutrition, University College, London, England
| | - Natalie J. Prescott
- Department of Medical and Molecular Genetics, King’s College London School of Medicine, Guy’s Hospital, London, United Kingdom
- Centre for Gastroenterology and Nutrition, University College, London, England
| | - Jeremy Sanderson
- Division of Genetics and Molecular Medicine, Guy’s, King’s College and St Thomas’ School of Medicine, London, England
- Centre for Gastroenterology and Nutrition, University College, London, England
| | - Francesca Bredin
- IBD Research Group, Addenbrooke’s Hospital, University of Cambridge, Cambridge, England
- Centre for Gastroenterology and Nutrition, University College, London, England
| | - Carlo Berzuini
- IBD Research Group, Addenbrooke’s Hospital, University of Cambridge, Cambridge, England
- Centre for Gastroenterology and Nutrition, University College, London, England
| | - Alastair Forbes
- Department of Medical and Molecular Genetics, King’s College London School of Medicine, Guy’s Hospital, London, United Kingdom
- Centre for Gastroenterology and Nutrition, University College, London, England
| | - Cathryn M. Lewis
- Division of Genetics and Molecular Medicine, Guy’s, King’s College and St Thomas’ School of Medicine, London, England
- Centre for Gastroenterology and Nutrition, University College, London, England
| | - Lon Cardon
- Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, England
- Centre for Gastroenterology and Nutrition, University College, London, England
| | - Panos Deloukas
- Wellcome Trust Sanger Institute, Hinxton, Cambridge, England
- Centre for Gastroenterology and Nutrition, University College, London, England
| | - Derek Jewell
- Gastroenterology Unit, Radcliffe Infirmary, University of Oxford, Oxford, England
- Centre for Gastroenterology and Nutrition, University College, London, England
| | - Christopher G. Mathew
- Division of Genetics and Molecular Medicine, Guy’s, King’s College and St Thomas’ School of Medicine, London, England
- Centre for Gastroenterology and Nutrition, University College, London, England
| | - Miles Parkes
- IBD Research Group, Addenbrooke’s Hospital, University of Cambridge, Cambridge, England
- Centre for Gastroenterology and Nutrition, University College, London, England
| | - Jack Satsangi
- Department of Gastroenterology, University of Edinburgh, and Gastrointestinal Unit, Western General Hospital, Edinburgh, Scotland
- Centre for Gastroenterology and Nutrition, University College, London, England
- Address requests for reprints to: Jack Satsangi, FRCP, Gastrointestinal Unit, Division of Medical Sciences, School of Molecular and Clinical Medicine, University of Edinburgh, Western General Hospital, Edinburgh EH4 2XU, England. fax: (44) 0131-537-1085.
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