Advances in Clinical and Experimental Medicine

Title abbreviation: Adv Clin Exp Med
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ISSN 1899–5276 (print)
ISSN 2451-2680 (online)
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Advances in Clinical and Experimental Medicine

2020, vol. 29, nr 8, August, p. 1001–1009

doi: 10.17219/acem/121521

Publication type: review article

Language: English

License: Creative Commons Attribution 3.0 Unported (CC BY 3.0)

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Association of gene polymorphisms of KLK3 and prostate cancer: A meta-analysis

Huifeng Li1,C, Xiawei Fei1,A,C, Yanting Shen2,A, Zhenqi Wu1,F

1 Department of Urology, Qingpu Branch of Zhongshan Hospital affiliated to Fudan University, Shanghai, China

2 School of Biological Science and Medical Engineering, Southeast University, Nanjing, China

Abstract

Previous studies have suggested that prostate-specific antigen (PSA) plays a role in the etiology of prostate cancer (PCa), and that polymorphisms of KLK3 may be associated with PCa. However, these results were conflicting. Therefore, we performed a meta-analysis to illuminate this problem. We searched the PubMed and Web of Science databases. Ten single nucleotide polymorphisms (SNPs) were involved in this meta-analysis. The pooled results showed that the minor alleles of rs1058205, rs2735839, rs174776, rs17632542, rs266849, rs266878, and rs2569735 were significantly associated with PCa. Compared to genotypes of the common homozygotes, the heterozygous genotypes of rs1058205, rs2735839, rs174776, rs17632542, rs266849, and rs266878 were significantly associated with PCa, as well as the homozygous genotypes of rs1058205, rs2735839, rs17632542, rs266878, rs266876, and rs2569735. Only rs2735839 was involved in the Gleason score (GS). The pooled results showed that when compared with GS ≥ 8 PCa, the A-allele was the protective factor for GS < 7 PCa. It was also a protective factor for GS ≥ 4+3 when compared to GS ≤ 3+4 PCa. A strong association was observed between PCa and rs1058205, rs2735839, rs266882, rs174776, rs17632542, rs266849, rs266878, rs266876, rs1058274, and rs2569735. The G-allele of rs2735839 was a risk factor for GS < 7 PCa when compared with the GS ≥ 8 PCa, as well as for the GS ≥ 4+3 when compared to the GS ≤ 3+4 PCa. Therefore, these SNPs may be valuable as biomarkers for PCa in the future.

Key words

KLK3, prostate-specific antigen, polymorphisms, prostate cancer, meta-analysis

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