Genetic variation in CRTh2 influences development of allergic phenotypes

被引:18
作者
Cameron, L. [1 ]
Depner, M. [2 ]
Kormann, M. [2 ]
Klopp, N. [3 ]
Illig, T. [3 ]
von Mutius, E. [2 ]
Kabesch, M. [4 ]
机构
[1] Univ Alberta, Dept Med, Pulm Res Grp, Edmonton, AB T6G 2S2, Canada
[2] Univ Munich, Univ Childrens Hosp, Munich, Germany
[3] GSF Res Ctr Environm & Hlth, Inst Epidemiol, Neuherberg, Germany
[4] Hannover Med Sch, Dept Pediat Pneumol & Neonatol, D-3000 Hannover, Germany
关键词
asthma; environment; food allergy; single nucleotide polymorphism; IgE; TH2 CELLS CRTH2; PROSTAGLANDIN D-2; HAY-FEVER; ATOPIC-DERMATITIS; RECEPTOR CRTH2; ASTHMA; ASSOCIATION; CHILDREN; POLYMORPHISMS; POPULATION;
D O I
10.1111/j.1398-9995.2009.02053.x
中图分类号
R392 [医学免疫学];
学科分类号
100102 ;
摘要
Background: Allergic disorders are characterized by an increase in the Th2 cytokines IL-4, IL-5 and IL-13, produced primarily by Th2 cells. These cells are marked by the expression of CRTh2 (chemoattractant receptor-homologous molecule expressed on Th2 cells), a receptor for prostaglandin D(2). As genetic variation plays a significant role in the predisposition for allergic disorders, we investigated the influence of single nucleotide polymorphisms (SNPs) in CRTh2. Methods: In a large study population of German children (n = 4264) from the International Study of Asthma and Allergy in Children (ISAAC II), six polymorphisms in CRTh2 were genotyped. Statistical analyses were performed using single SNP and haplotype analyses. Results: Uncorrected associations among -6373G > A, +1431G > C and +1538A > G were observed with a number of allergic phenotypes (P < 0.05). After correction, association between +1431C and specific IgE to food allergens remained significant (P = 0.04). Associations of haplotype (H)3 (containing +1538G) with reduced risk for asthma and H2 (containing +1431C) with increased risk for specific IgE to food allergens also remained significant after correction for multiple testing (P = 0.004). Conclusions: Genetic variation within CRTh2 modifies the development of allergic sensitization and asthma in a population of German children.
引用
收藏
页码:1478 / 1485
页数:8
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