Oncotarget

Research Papers:

Uridine diphosphate-glucuronosyltransferase 2B15 D85Y gene polymorphism is associated with lower prostate cancer risk: a systematic review and meta-analysis

Xiao Zhong, Jiayu Feng, Ya Xiao, Pingxian Wang, Qiming Fan, Ronghua Wu, Wengang Hu and Chibing Huang _

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Oncotarget. 2017; 8:52837-52845. https://doi.org/10.18632/oncotarget.17375

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Abstract

Xiao Zhong1, Jiayu Feng1, Ya Xiao1, Pingxian Wang1, Qiming Fan1, Ronghua Wu1, Wengang Hu1 and Chibing Huang1

1Department of Urology, Second Affiliated Hospital, Third Military Medical University, Chongqing, 400037, P. R. China

Correspondence to:

Chibing Huang, email: Philosopher123@outlook.com

Keywords: uridine diphosphate-glucuronosyltransferase 2 family, UGT2B15, prostate cancer, single-nucleotide polymorphism

Received: October 25, 2016    Accepted: February 06, 2017    Published: April 24, 2017

ABSTRACT

UGT2B15 (uridine diphosphate-glucuronosyltransferase 2B15) catalyzes the conversion of lipophilic C19 steroid androgens such as dihydrotestosterone (DHT) into water-soluble metabolites that can be excreted. Studies of the association between the UGT2B15 gene D85Y polymorphism and prostate cancer have yielded contradictory results. We therefore systematically searched in the PubMed, EMBASE, Science Direct/Elsevier, CNKI, and Cochrane Library databases, and identified six relevant studies with which to perform a meta-analysis of the relation between UGT2B15 D85Y polymorphism and prostate cancer risk. Our meta-analysis revealed a significant association between UGT2B15 D85Y gene polymorphism and prostate cancer in all genetic models (P<0.05). The combined odds ratios and 95% confidence intervals were as follows: additive model, 0.53 and 0.32-0.88; dominant model, 0.51 and 0.33-0.79; recessive model, 0.76 and 0.60-0.96; co-dominant model, 0.55 and 0.35-0.86; and allele model, 0.70 and 0.55-0.89. These results are consistent with the idea that the UGT2B15 D85Y enzyme variant reduces the risk of prostate cancer by efficiently metabolizing dihydrotestosterone (DHT), which is associated with prostate cancer progression.


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