Statins induce cell apoptosis through a modulation of AKT/FOXO1 pathway in prostate cancer cells

Jun-Li Deng1,2, Rui Zhang1,2, Ying Zeng1,2

  • 1Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha 410008, People's Republic of China.

Abstract

Insights

Statins like simvastatin and fluvastatin inhibit prostate cancer cell growth and promote apoptosis. This effect is linked to the downregulation of AKT/FOXO1 phosphorylation, suggesting a role in cancer therapy.

Area of Science:

  • Oncology
  • Pharmacology
  • Molecular Biology

Background:

  • Statins are increasingly studied for their role in neoplasms.
  • The precise mechanisms of statins in prostate cancer remain unclear.

Purpose of the Study:

  • To investigate the effects of statins on prostate cancer cell proliferation and apoptosis.
  • To elucidate the underlying molecular mechanisms of statin action in prostate cancer.

Main Methods:

  • Prostate cancer cells (PC3, DU145) were treated with simvastatin and fluvastatin.
  • Cell proliferation assessed via MTS assay and colony formation.
  • Apoptosis evaluated using Hoechst staining, flow cytometry, and caspase-3 activity; protein levels determined by Western blotting.

Main Results:

  • Simvastatin and fluvastatin dose-dependently inhibited cell viability and colony formation.
  • Statins promoted apoptosis, indicated by increased caspase-3 activity and cleaved protein levels.
  • Statin treatment reduced phosphorylated-AKT and phosphorylated-FOXO1, with an AKT inhibitor potentiating these effects.

Conclusions:

  • Statins reduce prostate cancer cell proliferation and induce apoptosis.
  • The mechanism involves downregulation of AKT/FOXO1 phosphorylation.
  • Statins show potential for prostate cancer prevention and therapy.

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