当前位置： SCI文献检索 > JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH期刊下所有文献 > Statin-induced apoptosis via the suppression of ERK1/2 and Akt activation by inhibition of the geranylgeranyl-pyrophosphate biosynthesis in glioblastoma.

Statin-induced apoptosis via the suppression of ERK1/2 and Akt activation by inhibition of the geranylgeranyl-pyrophosphate biosynthesis in glioblastoma.

Abstract：

BACKGROUND:Statins are inhibitors of 3-hydroxy-3-methylglutaryl-coenzyme A reductase, the rate-limiting enzyme in cholesterol synthesis. The inhibition of this key enzyme in the mevalonate pathway leads to suppression of cell proliferation and induction of apoptosis. However, the molecular mechanism of apoptosis induction by statins is not well understood in glioblastoma. In the present study, we attempted to elucidate the mechanism by which statins induce apoptosis in C6 glioma cells. METHODS:The cytotoxicity of statins toward the C6 glioma cells were evaluated using a cell viability assay. The enzyme activity of caspase-3 was determined using activity assay kits. The effects of statins on signal transduction molecules were determined by western blot analyses. RESULTS:We found that statins inhibited cell proliferation and induced apoptosis in these cells. We also observed an increase in caspase-3 activity. The apoptosis induced by statins was not inhibited by the addition of farnesyl pyrophosphate, squalene, ubiquinone, and isopentenyladenine, but by geranylgeranyl-pyrophosphate (GGPP). Furthermore, statins decreased the levels of phosphorylated extracellular signal-regulated kinase 1/2 (ERK1/2) and Akt. CONCLUSIONS:These results suggest that statins induce apoptosis when GGPP biosynthesis is inhibited and consequently decreases the level of phosphorylated ERK1/2 and Akt. The results of this study also indicate that statins could be used as anticancer agents in glioblastoma.

journal_name

J Exp Clin Cancer Res

journal_title

Journal of experimental & clinical cancer research : CR

authors

Yanae M,Tsubaki M,Satou T,Itoh T,Imano M,Yamazoe Y,Nishida S

doi

10.1186/1756-9966-30-74

subject

Has Abstract

pub_date

2011-08-10 00:00:00

pages

74

eissn

0392-9078

issn

1756-9966

pii

1756-9966-30-74

journal_volume

30

pub_type

杂志文章

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