Association of the CYP1B1 Leu432Val polymorphism with the risk of prostate cancer: a meta-analysis.

Abstract:

:Cytochrome P450 1B1 (CYP1B1) is a key P450 enzyme involved in the metabolism of exogenous and endogenous substrates in endocrine-mediated tumors such as prostate cancer. The potential significance of nonsynonymous SNP Leu432Val (rs1056836) as a risk factor in prostate cancer has been extensively studied. The objective of this meta-analysis was to quantitatively summarize the association between CYP1B1 Leu432Val polymorphism and prostate cancer. All eligible studies were searched and acquired from the PubMed and ISI databases. Statistical analysis was performed by using the software STATA 11.0. Ten case-controlled studies from nine eligible publications were identified, which includes 6,668 subjects with 3,221 cases and 3,447 controls. Overall, no significant association was found between the CYP1B1 Leu432Val polymorphism and prostate cancer susceptibility for Val/Val vs Leu/Leu (OR = 1.07; 95% CI: 0.79-1.44; P = 0.67), Leu/Val vs Leu/Leu (OR = 1.05; 95% CI: 0.94-1.17; P = 0.42), Leu/Val + Val/Val vs Leu/Leu (OR = 1.07; 95% CI: 0.91-1.26; P = 0.40) and Val/Val vs Leu/Val + Leu/Leu (OR = 1.11; 95% CI: 0.86-1.44; P = 0.43). However, a higher risk was found among Asians in all genetic models (Val/Val vs Leu/Leu :OR = 2.48, 95% CI: 1.14-5.39, P = 0.02; Leu/Val vs Leu/Leu: OR = 1.40, 95% CI: 1.03-1.89, P = 0.03; Leu/Val + Val/Val vs Leu/Leu: OR = 1.51, 95% CI = 1.14-2.01, P = 0.004; Val/Val vs Leu/Val + Leu/Leu: OR = 2.50, 95% CI = 1.35-4.56, P = 0.004). We were not able to detect any association in the subgroup analysis by source of controls and genotyping method in all genetic models. In conclusion, this meta-analysis provides evidence that CYP1B1 Leu432Val polymorphism is not associated with prostate cancer risk overall with the exception in Asians.

journal_name

Mol Biol Rep

authors

Cui L,Dillehay K,Chen W,Shen D,Dong Z,Li W

doi

10.1007/s11033-012-1579-y

subject

Has Abstract

pub_date

2012-07-01 00:00:00

pages

7465-71

issue

7

eissn

0301-4851

issn

1573-4978

journal_volume

39

pub_type

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