Cancer Chemotherapy and Pharmacology

, Volume 83, Issue 5, pp 933–938 | Cite as

The impact of genetic polymorphism on CYP19A1 in androgen-deprivation therapy among Japanese men

  • Masaki ShiotaEmail author
  • Naohiro Fujimoto
  • Shigehiro Tsukahara
  • Miho Ushijima
  • Ario Takeuchi
  • Eiji Kashiwagi
  • Junichi Inokuchi
  • Katsunori Tatsugami
  • Takeshi Uchiumi
  • Masatoshi Eto
Original Article



Inadequate suppression of testosterone during androgen-deprivation therapy impairs its efficacy. This study investigated the significance of genetic polymorphism in CYP19A1, which encodes aromatase that catalyzes androgens into estrogens, among men treated with primary ADT for metastatic prostate cancer.


This study included 80 Japanese patients with metastatic prostate cancer whose serum testosterone levels during ADT were available. The association of CYP19A1 gene polymorphism (rs1870050) with clinicopathological parameters including serum testosterone levels during ADT as well as progression-free survival and overall survival was examined.


Serum testosterone levels during ADT of men carrying homozygous wild-type (AA) in the CYP19A1 gene [median (interquartile range); 11.6 (8.3–20.3) ng/dl] were higher than those in men carrying the heterozygous/homozygous variant (AC/CC) [median (interquartile range); 10.0 (6.4–12.8) ng/dl]. When adjusted by Gleason score, initial PSA, M-stage and serum testosterone level during ADT, heterozygous/homozygous variant (AC/CC) in the CYP19A1 gene was associated with a lower risk of progression to castration resistance [hazard ratio (95% confidence interval), 0.53 [0.29–0.92], p = 0.025], but not to any-cause death [hazard ratio (95% confidence interval), 0.74 [0.36–1.49], p = 0.40].


These findings suggest that genetic variation in CYP19A1 (rs1870050) might affect the prognosis of patients with metastatic prostate cancer when treated with ADT by regulating serum testosterone levels.


Androgen-deprivation therapy Aromatase CYP19A1 Prostate cancer Testosterone 



We would like to thank Ms. Noriko Hakoda and Ms. Eriko Gunshima for technical assistance, and Edanz Group Japan for editorial assistance. We particularly thank Dr. Hiroyuki Masaoka (Kyushu University, Fukuoka, Japan) for excellent advices for statistical analyses.


This work was supported by JSPS KAKENHI grant (17K11145) and Research Promotion Grant from Shin-Nihon Foundation of Advanced Medical Research.

Compliance with ethical standards

Conflict of interest

The authors have no conflict of interest to declare.

Ethical approval

IRB approval from Kyushu University.


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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  • Masaki Shiota
    • 1
    Email author
  • Naohiro Fujimoto
    • 2
  • Shigehiro Tsukahara
    • 1
    • 3
  • Miho Ushijima
    • 1
  • Ario Takeuchi
    • 1
  • Eiji Kashiwagi
    • 1
  • Junichi Inokuchi
    • 1
  • Katsunori Tatsugami
    • 1
  • Takeshi Uchiumi
    • 3
  • Masatoshi Eto
    • 1
  1. 1.Department of Urology, Graduate School of Medical SciencesKyushu UniversityFukuokaJapan
  2. 2.Department of Urology, School of MedicineUniversity of Occupational and Environmental HealthKitakyushuJapan
  3. 3.Department of Clinical Chemistry and Laboratory Medicine, Graduate School of Medical SciencesKyushu UniversityFukuokaJapan

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