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  • Title: [Effects of simvastatin on the proliferation of HepG2 cells].
    Author: Liu W, Zhang LF, Zhang YH.
    Journal: Zhonghua Gan Zang Bing Za Zhi; 2010 Oct; 18(10):751-3. PubMed ID: 21059291.
    Abstract:
    OBJECTIVE: To investigate the effects of simvastatin on the proliferation, cell cycle and expression of cyclin-dependent kinase inhibitor p21 protein in human hepatocellular carcinoma (HepG2) cells in vitro. METHODS: HepG2 cells were administrated with simvastatin. Proliferation of the cells was detected by MTT assay, cell cycle was measured by flowcytometry and the cyclin-dependent kinase inhibitor p21 protein expression was detected by immunocytochemistry. The results were evaluated by factorial design and one-way analysis of variance. RESULTS: Simvastatin inhibited HepG2 cells growth in vitro (F(concentration) = 1264, P value less than 0.001; F(time) = 17.466, P value less than 0.001; F(concentration*time) = 35.053, P value less than 0.001) and could arrest HepG2 cells in G0/G1 phase of cell cycle. However, apoptosis of HepG2 cells was not obvious. Simvastatin could also increase cyclin-dependent kinase inhibitor p21 protein expression (F = 512.133, P value less than 0.001). CONCLUSION: Simvastatin can inhibit the growth of HepG2 cells in vitro, which may be explained by its effects of enhancing cyclin-dependent kinase inhibitor p21 protein expression and arresting HepG2 cells at G0/G1 phase of cell cycle.
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