Downregulation of survivin expression and elevation of caspase-3 activity involved in pitavastatin-induced HepG 2 cell apoptosis.

Abstract:

:The aim of the present study was to research the apoptosis of human hepatocellular carcinoma cell line HepG 2 induced by pitavastatin. HepG 2 cells were treated with increasing doses of pitavastatin or with mevalonic acid for 48 h. The proliferation of cells was detected with WST-8. The morphology of the nucleus was observed under a microscope by Hoechst 33258 staining. The apoptosis peaks were examined by flow cytometry. The expression of survivin mRNA was examined with RT-PCR. The caspase-3 activity was detected with caspase-3 colorimetric protease assay. We found that growth inhibitory effects were observed for treatment with pitavastatin at 10-50 microM. Pitavastatin at 10 microM induced granular apoptotic bodies of HepG 2 cells. Furthermore, pitavastatin at 10 microM increased the appearance of sub-G1 population of HepG 2 cells. Finally, pitavastatin at 10 microM downregulated the expression of survivin mRNA and upregulated the caspase-3 activity, which was clearly related to the HMG-CoA reductase activity. These results suggest that pitavastatin at 10 microM induces apoptosis of HepG 2 cells, which is associated with the decreased expression of survivin mRNA and increased caspase-3 activity of HepG 2 cells.

journal_name

Oncol Rep

journal_title

Oncology reports

authors

Wang J,Xu Z,Zhang M

subject

Has Abstract

pub_date

2007-08-01 00:00:00

pages

383-7

issue

2

eissn

1021-335X

issn

1791-2431

journal_volume

18

pub_type

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