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Association between polymorphisms in prostanoid receptor genes and aspirin-intolerant asthma.

Authors
Kim, SH; Kim, YK; Park, HW; Jee, YK; Bahn, JW; Chang, YS; Ye, YM; Shin, ES; Lee, JE; Park, HS; Min, KU
Citation
Pharmacogenetics and genomics, 17(4):295-304, 2007
Journal Title
Pharmacogenetics and genomics
ISSN
1744-68721744-6880
Abstract
BACKGROUND: Genetic predisposition is linked to the pathogenesis of aspirin-intolerant asthma. Most candidate gene approaches have focused on leukotriene-related pathways, whereas there have been relatively few studies evaluating the effects of polymorphisms in prostanoid receptor genes on the development of aspirin-intolerant asthma. Therefore, we investigated the potential association between prostanoid receptor gene polymorphisms and the aspirin-intolerant asthma phenotype. METHODS: We screened for genetic variations in the prostanoid receptor genes PTGER1, PTGER2, PTGER3, PTGER4, PTGDR, PTGIR, PTGFR, and TBXA2R using direct sequencing, and selected 32 tagging single nucleotide polymorphisms among the 77 polymorphisms with frequencies >0.02 based on linkage disequilibrium for genotyping. We compared the genotype distributions and allele frequencies of three participant groups (108 patients with aspirin-intolerant asthma, 93 patients with aspirin-tolerant asthma, and 140 normal controls). RESULTS: Through association analyses studies of the 32 single nucleotide polymorphisms, the following single nucleotide polymorphisms were found to have significant associations with the aspirin-intolerant asthma phenotype: -616C>G (P=0.038) and -166G>A (P=0.023) in PTGER2; -1709T>A (P=0.043) in PTGER3; -1254A>G (P=0.018) in PTGER4; 1915T>C (P=0.015) in PTGIR; and -4684C>T (P=0.027), and 795T>C (P=0.032) in TBXA2R. In the haplotype analysis of each gene, the frequency of PTGIR ht3[G-G-C-C], which includes 1915T>C, differed significantly between the aspirin-intolerant asthma patients and aspirin-tolerant asthma patients (P=0.015). CONCLUSION: These findings suggest that genetic polymorphisms in PTGER2, PTGER3, PTGER4, PTGIR, and TBXA2R play important roles in the pathogenesis of aspirin-intolerant asthma.
MeSH terms
AdultAllelesAspirin/adverse effects*Asthma/drug therapyAsthma/genetics*Asthma/metabolismCase-Control StudiesDrug Tolerance/geneticsFemaleGene FrequencyGenotypeHaplotypesHumansKoreaMaleMiddle AgedPharmacogeneticsPhenotypePolymorphism, Single Nucleotide*Prostaglandins/metabolismReceptors, Prostaglandin/genetics*
DOI
10.1097/01.fpc.0000239977.61841.fe
PMID
17496729
Appears in Collections:
Journal Papers > School of Medicine / Graduate School of Medicine > Allergy
Journal Papers > Research Organization > Regional Clinical Trial Center
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