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[Statins Regulate the Proliferation and Apoptosis of T-ALL Cells through the Inhibition of Akt Pathway].
Zhongguo Shi Yan Xue Ye Xue za Zhi 2018 April
OBJECTIVE: To investigate the effect of Statins on proliferation and apoptosis in human acute T lymphocytic leukemia (T-ALL) cells and its possible mechanism.
METHODS: Jurkat and CCRF-CEM cells were cultured in different concentrations of Fluvastatin and Simvastatin for 24 h respectively. Then, the cell growth inhibition level was defected by CCK-8; the DNA replication was analyzed by EdU; the cell apoptosis was analyzed by Annexin V/7-AAD double labeling; the cell cycle changes were analyzed by flow cytometry; the expressions of Cyclin D1, p21, p27, BAX, BCL-2 and p-Akt were determined by Western blot.
RESULTS: Fluvastatin and Simvastatin both significantly inhibited the growth of Jurkat and CCRF-CEM cells in a dose-dependent manner. The inhibitory rate of Jurkat and CCRF-CEM cells at 0.2 mmol/L Fluvastatin was 41.14% and 57.08% respectively, while the 0.2 mmol/L Simvastatin could supress 68.42% of Jurkat and 77.10% of CCRF-CEM cells. Half or more than half of cell inhibition were observed in Statins-treated groups with significantly statistical differences, compared with the control groups (P<0.05). After the Jurkat and CCRF-CEM cells were treated with Fluvastation and Simvastation of different concentrations for 24 hours, the proportion of early and later apoptotic cells both increased; moreover, the total apoptotic rate increased significantly(P<0.05) at 0.2 mmol/L and 0.3 mmol/L concentration of Fluvastatin and Simvastatin. The detection of cell cycle showed that both of Jurkat and CCRF-CEM cells were arrested in G1 phase. Western blot revealed that, in comparison with the control group, the expressions of BAX, p21 and p27 in cells treated with Statins were up-regulated, while Cyclin D1, BCL-2 and p-Akt expressions were down-regulated.
CONCLUSION: Statins can suppress T-ALL cell proliferation and induce cell apoptosis through the inhibition of Akt pathway.
METHODS: Jurkat and CCRF-CEM cells were cultured in different concentrations of Fluvastatin and Simvastatin for 24 h respectively. Then, the cell growth inhibition level was defected by CCK-8; the DNA replication was analyzed by EdU; the cell apoptosis was analyzed by Annexin V/7-AAD double labeling; the cell cycle changes were analyzed by flow cytometry; the expressions of Cyclin D1, p21, p27, BAX, BCL-2 and p-Akt were determined by Western blot.
RESULTS: Fluvastatin and Simvastatin both significantly inhibited the growth of Jurkat and CCRF-CEM cells in a dose-dependent manner. The inhibitory rate of Jurkat and CCRF-CEM cells at 0.2 mmol/L Fluvastatin was 41.14% and 57.08% respectively, while the 0.2 mmol/L Simvastatin could supress 68.42% of Jurkat and 77.10% of CCRF-CEM cells. Half or more than half of cell inhibition were observed in Statins-treated groups with significantly statistical differences, compared with the control groups (P<0.05). After the Jurkat and CCRF-CEM cells were treated with Fluvastation and Simvastation of different concentrations for 24 hours, the proportion of early and later apoptotic cells both increased; moreover, the total apoptotic rate increased significantly(P<0.05) at 0.2 mmol/L and 0.3 mmol/L concentration of Fluvastatin and Simvastatin. The detection of cell cycle showed that both of Jurkat and CCRF-CEM cells were arrested in G1 phase. Western blot revealed that, in comparison with the control group, the expressions of BAX, p21 and p27 in cells treated with Statins were up-regulated, while Cyclin D1, BCL-2 and p-Akt expressions were down-regulated.
CONCLUSION: Statins can suppress T-ALL cell proliferation and induce cell apoptosis through the inhibition of Akt pathway.
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