Survivin is involved in the anti-apoptotic effect of edaravone in PC12 cells

Survivin is involved in the anti-apoptotic effect of edaravone in PC12 cells
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Survivin 参与依达拉奉对 PC12 细胞的抗凋亡作用

DOI:
10.1007/s11010-009-0037-1
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发表时间:
2009
影响因子:
4.3
通讯作者:
Yong‐gang Wang
Yong‐gang Wang
中科院分区:
生物学3区
文献类型:
--
作者:
Xueyuan Liu;Ling‐ling Yao;Yu;Bei;Yong;Wei;Jing Yu;Yong‐gang Wang

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依达拉奉(3-甲基-1-苯基-2-吡唑啉-5- 1)是一种新开发的羟基自由基清除剂,广泛用于缺血再灌注损伤的保护,对细胞凋亡具有很高的预防作用。然而,依达拉奉保护作用的确切细胞内机制尚不清楚。我们观察到在血清剥夺(DEPV)条件下培养的PC12细胞中,survivin水平与依达拉奉的抗凋亡作用呈正相关。Survivin RNA干扰(RNAi)增强了depv诱导的PC12细胞凋亡,而Survivin RNAi减弱了依达拉奉的抗凋亡作用。此外,survivin过表达对depv诱导的PC12细胞凋亡具有保护作用。抑制ERK和PI3-K/AKT抑制依达拉奉减少细胞凋亡和增加存活素的能力。总之,本研究提供了第一个直接证据,表明survivin通过涉及ERK和PI3-K/AKT的途径参与依达拉奉的抗凋亡作用。
Edaravone (3-methyl-1-phenyl-2-pyrazolin-5-one), a newly developed hydroxy radical scavaging agent which has been widely used for protection against ischemia-reperfusion injury is highly effective in preventing cell apoptosis. However, the exact intracellular mechanism(s) underlying the protective action of edaravone is not clear. We observed that in PC12 cells cultured under serum deprivation (DEPV) condition, the levels of survivin were positively correlated with the anti-apoptotic action of edaravone. Survivin RNA interference (RNAi) increased DEPV-induced PC12 cell apoptosis, whereas the anti-apoptotic effect of edaravone was blunted by survivin RNAi. Moreover, survivin overexpression provided protection against DEPV-induced PC12 cell apoptosis. Inhibition of ERK and PI3-K/AKT prevented edaravone’s ability to decrease apoptosis and increase survivin. In conclusion, the present study provides the first direct evidence that survivin involves in the anti-apoptotic effects of edaravone via a pathway involving ERK and PI3-K/AKT.
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