Strong Overexpression of CXCR3 Axis Components in Childhood Inflammatory Bowel Disease

被引:52
作者
Schroepf, Sebastian [1 ]
Kappler, Roland [1 ]
Brand, Stephan [2 ]
Prell, Christine [3 ]
Lohse, Peter [4 ]
Glas, Juergen [1 ,5 ]
Hoster, Eva [6 ]
Helmbrecht, Johanna [1 ]
Ballauff, Antje [7 ]
Berger, Michael [1 ]
von Schweinitz, Dietrich [1 ]
Koletzko, Sibylle [3 ]
Lacher, Martin [1 ]
机构
[1] Univ Munich, Res Labs, Dept Pediat Surg, D-80337 Munich, Germany
[2] Univ Munich, Dept Med Grosshadern 2, Munich, Germany
[3] Univ Munich, Dept Pediat, Div Pediat Gastroenterol, Munich, Germany
[4] Univ Munich, Inst Clin Chem Grosshadern, Munich, Germany
[5] Rhein Westfal TH Aachen, Dept Human Genet, Aachen, Germany
[6] Univ Munich, Dept Med Informat Biometry & Epidemiol, Munich, Germany
[7] Univ Duisburg Essen, Univ Klinikum Essen, Div Pediat Gastroenterol, Essen, Germany
关键词
Crohn's disease; Childhood onset; CXCR3; CXCL11; Inflammatory bowel disease; rs6817952; Ulcerative colitis; GENOME-WIDE ASSOCIATION; CROHNS-DISEASE; SUSCEPTIBILITY LOCI; CHEMOKINE RECEPTORS; EXPRESSION; CELLS; BLOCKADE; COLITIS; VARIANT; GENE;
D O I
10.1002/ibd.21312
中图分类号
R57 [消化系及腹部疾病];
学科分类号
摘要
Background: Inflammatory bowel disease (IBD) is a polygenetic disorder. Our group previously showed that a variant within the CXCL9 gene is associated with pediatric Crohn's disease. As CXCL9, CXCL 10, and CXCL I I are the 3 ligands to the receptor CXCR3, the aim of this study was to investigate the colonic transcriptional activity of the CXCR3 axis and to perform SNP genotyping of a CXCL11 polymorphism in a large pediatric and adult IBD cohort. Methods: mRNA expression of CXCR3, CXCL9, CXCL10, CXCL11, and IL8 was analyzed in colonic biopsies using real-time PCR. CXCL11 rs6817952 nucleotide substitution was determined in 501 German individuals with IBD (336 CD, 165 UC) "including 258 children and 243 adults as well as in 231 controls by a TaqMan SNP genotyping assay. Results: CXCR3 axis genes were significantly overexpressed in inflamed colonic tissue of pediatric CD and UC patients. The prevalence of hetero- and homozygous variants of the rs6817952 genotype was higher in pediatric but not in adult CD patients compared with that in controls (P = 0.04). Moreover, carriers of the hetero- and homozygous genotype variants of rs6817952 were at increased risk for UC in all age groups (P = 0.009).
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页码:1882 / 1890
页数:9
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