Tumor Inhibition by Enzalutamide in a Xenograft Model of Ovarian Cancer

Cancer Invest. 2016 Nov 25;34(10):517-520. doi: 10.1080/07357907.2016.1242598. Epub 2016 Nov 8.

Abstract

Objectives: To investigate the tumor-suppressive properties of enzalutamide in androgen-driven ovarian cancer.

Methods: Mice were implanted subcutaneously with OVCAR-3 cells and treated with dihydrotestosterone in combination with enzalutamide or vehicle control. Tumor volumes were measured twice weekly until day 56.

Results: Dihydrotestosterone exposure led to a significant increase in tumor growth, while concomitant treatment with enzalutamide led to significant reductions in tumor volume compared to the androgen-exposed groups.

Conclusions: We present the first evidence that the second-generation anti-androgen enzalutamide may possess efficacy in the treatment of ovarian cancer, paving the way for the future clinical trials.

Keywords: Enzalutamide; OVCAR-3; androgen receptor; epithelial ovarian cancer; xenograft.

MeSH terms

  • Animals
  • Antineoplastic Agents / pharmacology*
  • Benzamides
  • Cell Line, Tumor
  • Disease Models, Animal
  • Female
  • Gene Expression
  • Humans
  • Mice
  • Nitriles
  • Ovarian Neoplasms / drug therapy
  • Ovarian Neoplasms / metabolism
  • Ovarian Neoplasms / pathology*
  • Phenylthiohydantoin / analogs & derivatives*
  • Phenylthiohydantoin / pharmacology
  • Receptors, Androgen / genetics
  • Receptors, Androgen / metabolism
  • Tumor Burden / drug effects
  • Xenograft Model Antitumor Assays

Substances

  • Antineoplastic Agents
  • Benzamides
  • Nitriles
  • Receptors, Androgen
  • Phenylthiohydantoin
  • enzalutamide