Astragaloside IV Protect PC12 Cells under Stress Induced by Oxygen-Glucose Deprivation Involving PI3K/Akt/Bcl-2 Pathway

doi:10.3969/j.issn.2095-1396.2017.05.001

Abstract

Abstract:

Objective：To investigate the protective effect of astragaloside IV （AS-IV） on oxygen and glucose deprivation/reoxygenation of PC12 cells and the mechanism of PI3K/Akt/Bcl-2 signaling pathway. PC12 cells were cultured in vitro and nimodipine was used as a positive control. Pretreatment was carried out with different concentrations of AS-IV（1.00、0.10、0.01 μmol·L-1）. Methods：The oxygen-glucose deprivasion/reperfution （OGD/R） model was made. CCK-8 assay was used to detect the viability of PC12 cells. LDH kit was used to measure the leakage of lactate dehydrogenase. Hoechst 33342/PI staining was used to detect the apoptosis and necrosis. The expression of Akt，p-Akt，Bcl-2，Bax，and Caspase-3 were detected by western blot. Results：The results showed that AS-IV can increase the cell viability of OGD/R in PC12 cells and decreasethe leakage rate of LDH and apoptosis. The expression of p-Akt/Akt and Bcl-2 protein were up-regulated and the expression of pro-apoptotic protein Bax and Caspase-3 were down-regulated in a dose-dependent manner. PI3K/Akt signaling pathway inhibitor LY2940002 inhibits the effects of AS-IV on apoptosis-related proteins in OGD/R injury of PC12 cells. Conclusion：AS-IV has protective effect on PC12 cells injured by OGD/R，and the protective mechanism is related to PI3K/Akt/Bcl-2 signaling pathway.

Key words: astragaloside IV（AS-IV）, PC12；OGD/R, PI3K/Akt/Bcl-2 signaling pathway, neuroprotection

CLC Number:

R964

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ZHNAG Jia-lin，LI Yuan-yuan，YANG Wen-liang，LIU Fu-jia，TIAN Zi-xia，XIE Xin-mei，PANG Xiao-bin. Astragaloside IV Protect PC12 Cells under Stress Induced by Oxygen-Glucose Deprivation Involving PI3K/Akt/Bcl-2 Pathway[J]. Acta Neuropharmacologica, 2017, 7(5): 1-9.

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