Genetic Susceptibility in IBD: Overlap Between Ulcerative Colitis and Crohn's Disease

被引：36

作者：

Doecke, James D. ^{[1
,2
,3
]}

Simms, Lisa A. ^{[4
]}

Zhao, Zhen Zhen ^{[4
]}

Huang, Ning ^{[4
]}

Hanigan, Katherine ^{[4
]}

Krishnaprasad, Krupa ^{[4
,6
,7
]}

Roberts, Rebecca L. ^{[8
]}

Andrews, Jane M. ^{[6
,7
]}

Mahy, Gillian ^{[9
]}

Bampton, Peter ^{[10
]}

Lewindon, Peter ^{[11
,12
]}

Florin, Timothy ^{[12
,13
]}

Lawrance, Ian C. ^{[14
,15
]}

Gearry, Richard B. ^{[16
,17
]}

Montgomery, Grant W. ^{[4
]}

Radford-Smith, Graham L. ^{[4
,5
,12
]}

机构：

[1] Australian E Hlth Res Ctr, Herston, Qld, Australia

[2] CSIRO Preventat Hlth Flagship, Parkville, Vic, Australia

[3] Macquarie Univ, CSIRO Math & Informat Sci, N Ryde, NSW 2109, Australia

[4] Queensland Inst Med Res, Herston, Qld 4006, Australia

[5] Royal Brisbane & Womens Hosp, Dept Gastroenterol, Brisbane, Qld, Australia

[6] Univ Adelaide, Royal Adelaide Hosp, Dept Gastroenterol & Hepatol, IBD Serv, Adelaide, SA, Australia

[7] Univ Adelaide, Sch Med, Adelaide, SA, Australia

[8] Univ Otago, Dept Biochem, Dunedin, New Zealand

[9] Townsville Hosp, Dept Gastroenterol, Townsville, Qld, Australia

[10] Flinders Med Ctr, Dept Gastroenterol & Hepatol, Adelaide, SA, Australia

[11] Royal Childrens Hosp, Dept Gastroenterol, Brisbane, Qld, Australia

[12] Univ Queensland, Dept Med, Brisbane, Qld 4072, Australia

[13] Mater Hlth Serv, Brisbane, Qld, Australia

[14] Univ Western Australia, Sch Med & Pharmacol, Perth, WA 6009, Australia

[15] Fremantle Hosp, Ctr Inflammatory Bowel Dis, Fremantle, WA, Australia

[16] Univ Otago, Christchurch Hosp, Dept Gastroenterol, Christchurch, New Zealand

[17] Univ Otago, Dept Med, Christchurch, New Zealand

来源：

INFLAMMATORY BOWEL DISEASES | 2013年 / 19卷 / 02期

基金：

英国医学研究理事会;

关键词：

Crohn's disease; ulcerative colitis; single nucleotide polymorphism; GENOME-WIDE ASSOCIATION; RISK LOCI; EXPRESSION; VARIANT; NUMBER;

D O I：

10.1097/MIB.0b013e3182810041

中图分类号：

R57 [消化系及腹部疾病];

学科分类号：

摘要：

Background: The etiology of ulcerative colitis (UC) and Crohn's disease (CD) involves both genetic and environmental components. Multiple UC and CD susceptibility genes have been identified through genome-wide association studies and subsequent meta-analyses. These studies have also highlighted the presence of genes common to both diseases, and shared with several other autoimmune disorders. The aim of this study was to identify single nucleotide polymorphisms (SNPs) recently identified by the International IBD Genetics Consortium (IIBDGC) demonstrating that highly significant associations with CD could also confer genetic susceptibility to UC. Methods: Statistical modeling was performed on 29 CD-associated SNPs. The study comprised of 1652 UC cases from the Australia and New Zealand IBD Consortium and 2363 Australian population-based controls. Results: After adjustment for multiple comparisons, only one SNP, rs3024505, was significantly associated with UC (P = 0.001). Independent chi-square analyses identified odds ratios of 2.22 (1.48-3.37) for the rare homozygous genotype, and 1.20 (1.06-1.35) for the minor allele. Five other SNPs demonstrated moderate to weak associations with UC. Conclusions: Of the 29 SNPs conferring high genetic susceptibility to CD, 28 were not associated with UC, thus indicating that for this SNP set there is a low level of overlap between the two major forms of IBD. Only one SNP, rs3024505 (Chr 1q32.1, upstream of IL10), was associated with susceptibility to UC. The identification of this SNP replicates a finding from Franke et al (2008), where the rs3024505 SNP was strongly associated with UC across multiple European populations. (Inflamm Bowel Dis 2013;19:240-245)

引用

页码：240 / 245

页数：6

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