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他汀类药物通过调节前列腺癌细胞中 AKT/FOXO1 通路诱导细胞凋亡
Authors Deng JL, Zhang R, Zeng Y, Zhu YS, Wang G
Received 17 April 2019
Accepted for publication 28 June 2019
Published 31 July 2019 Volume 2019:11 Pages 7231—7242
DOI https://doi.org/10.2147/CMAR.S212643
Checked for plagiarism Yes
Review by Single-blind
Peer reviewers approved by Dr Colin Mak
Peer reviewer comments 2
Editor who approved publication: Dr Chien-Feng Li
Background: In recent years, statins have been frequently investigated in neoplasms. However, the potential roles of statins on prostate cancer cells and the underlying mechanisms have not been fully elucidated. In current study, we explored the effect and molecular mechanism of statins on cell proliferation and apoptosis in prostate cancer cells.
Methods: Prostate cancer cell were treated with gradient doses of simvastatin and fluvastatin for 24–72 h. Cell proliferation was analyzed by using MTS assay and colony formation. Cell apoptosis was measured by Hoechst staining, flow cytometry and caspase-3 activity. Western blotting was used to evaluate the proteins levels.
Results: Both simvastatin and fluvastatin produced a dose- and time-dependent inhibition of cell viability and colony formation while a promotion of cell apoptosis as evident with increases in caspase-3 activity, cleaved-caspase-3, cleaved-caspase-8 and cleaved-PARP levels in PC3 cells. Similar statin effects were observed in DU145 prostate cancer cells. Furthermore, statins produced a time- and dose-dependent reduction of phosphorylated-AKT and phosphorylated-FOXO1 levels in PC3 cells, and pretreatment of cells with an AKT phosphorylation inhibitor, MK2206, potentiated statins’ effect.
Conclusion: Statins decrease cell proliferation and induce cell apoptosis, probably mediated via a downregulation of AKT/FOXO1 phosphorylation in prostate cancer cells, which may have a potential benefit in prostate cancer prevention and therapy.
Keywords: statins, prostate cancer, apoptosis, AKT/FOXO1, pathway