Polymorphisms in androgen metabolism genes with serum testosterone levels and prognosis in androgen-deprivation therapy

Masaki Shiota, Satoshi Endo, Naohiro Fujimoto, Shigehiro Tsukahara, Miho Ushijima, Eiji Kashiwagi, Ario Takeuchi, Junichi Inokuchi, Takeshi Uchiumi, Masatoshi Eto

研究成果: Contribution to journalArticle査読

1 被引用数 (Scopus)

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Objective: Androgen metabolism is a key component in therapeutic resistance to androgen deprivation therapy (ADT). This study aimed to reveal the significance of genetic polymorphisms in genes involved in androgen metabolism, including CYP17A1, AKR1C3, and HSD17B, on serum testosterone levels during ADT, as well as the prognosis of men undergoing ADT for metastatic prostate cancer (CaP). Materials and methods: This study included 104 Japanese patients with metastatic CaP, for whom serum testosterone data during ADT were available for 80 patients. The association of CYP17A1 (rs743572), AKR1C3 (rs12529), HSD17B1 (rs605059), HSD17B3 (rs2066479), and HSD17B4 (rs7737181) with serum testosterone levels during ADT and prognosis (progression-free survival and overall survival) was examined. Enzymatic activity in AKR1C3 H5Q was examined using recombinant protein. Results: Homozygous wild-type (GG allele; median [interquartile range], 12.0 ng/ml [8.0–19.0 ng/ml]) AKR1C3 rs12529 was associated with higher serum testosterone levels during ADT compared with variant-type (GC/CC alleles; median [interquartile range], 9.0 ng/ml [6.4–10.8 ng/ml]). Consistently, variant-type (GC/CC alleles) AKR1C3 rs12529 showed significantly lower risk of progression (hazard ratio [95% confidence interval], 0.47 [0.24–0.96], P = 0.039) compared with homozygous wild-type (GG allele) on multivariate analysis. Meanwhile, other genetic variations were associated with neither serum testosterone during ADT nor prognosis. Enzyme activity of wild-type AKR1C3 was comparable to the H5Q mutant. Conclusions: Taken together, this study demonstrated that AKR1C3 polymorphism, which was associated with serum testosterone levels during ADT, may be a prognostic factor of the progression to castration-resistant prostate cancer in Japanese men with metastatic CaP.

本文言語英語
ページ(範囲)849.e11-849.e18
ジャーナルUrologic Oncology: Seminars and Original Investigations
38
11
DOI
出版ステータス出版済み - 11 2020

All Science Journal Classification (ASJC) codes

  • Oncology
  • Urology

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