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Association between the ERCC5 Asp1104His polymorphism and cancer risk: a meta-analysis.


ABSTRACT: BACKGROUND: Excision repair cross complementing group 5 (ERCC5 or XPG) plays an important role in regulating DNA excision repair, removal of bulky lesions caused by environmental chemicals or UV light. Mutations in this gene cause a rare autosomal recessive syndrome, and its functional single nucleotide polymorphisms (SNPs) may alter DNA repair capacity phenotype and cancer risk. However, a series of epidemiological studies on the association between the ERCC5 Asp1104His polymorphism (rs17655, G>C) and cancer susceptibility generated conflicting results. METHODOLOGY/PRINCIPAL FINDINGS: To derive a more precise estimation of the association between the ERCC5 Asp1104His polymorphism and overall cancer risk, we performed a meta-analysis of 44 published case-control studies, in which a total of 23,490 cases and 27,168 controls were included. To provide additional biological plausibility, we also assessed the genotype-gene expression correlation from the HapMap phase II release 23 data with 270 individuals from 4 ethnic populations. When all studies were pooled, we found no statistical evidence for a significantly increased cancer risk in the recessive genetic models (His/His vs. Asp/Asp: OR?=?0.99, 95% CI: 0.92-1.06, P?=?0.242 for heterogeneity or His/His vs. Asp/His + Asp/Asp: OR?=?0.98, 95% CI: 0.93-1.03, P?=?0.260 for heterogeneity), nor in further stratified analyses by cancer type, ethnicity, source of controls and sample size. In the genotype-phenotype correlation analysis from 270 individuals, we consistently found no significant correlation of the Asp1104His polymorphism with ERCC5 mRNA expression. CONCLUSIONS/SIGNIFICANCE: This meta-analysis suggests that it is unlikely that the ERCC5 Asp1104His polymorphism may contribute to individual susceptibility to cancer risk.

SUBMITTER: Zhu ML 

PROVIDER: S-EPMC3399856 | biostudies-literature | 2012

REPOSITORIES: biostudies-literature

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Association between the ERCC5 Asp1104His polymorphism and cancer risk: a meta-analysis.

Zhu Mei-Ling ML   Wang Mengyun M   Cao Zhi-Gang ZG   He Jing J   Shi Ting-Yan TY   Xia Kai-Qin KQ   Qiu Li-Xin LX   Wei Qing-Yi QY  

PloS one 20120718 7


<h4>Background</h4>Excision repair cross complementing group 5 (ERCC5 or XPG) plays an important role in regulating DNA excision repair, removal of bulky lesions caused by environmental chemicals or UV light. Mutations in this gene cause a rare autosomal recessive syndrome, and its functional single nucleotide polymorphisms (SNPs) may alter DNA repair capacity phenotype and cancer risk. However, a series of epidemiological studies on the association between the ERCC5 Asp1104His polymorphism (rs1  ...[more]

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