Roles of p53, c-Myc, Bcl-2, Bax and caspases in serum deprivation-induced neuronal apoptosis: a possible neuroprotective mechanism of basic fibroblast growth factor

被引:26
作者
Liu, X [1 ]
Zhu, XZ [1 ]
机构
[1] Chinese Acad Sci, Shanghai Inst Mat Med, Dept Pharmacol, Shanghai 200031, Peoples R China
关键词
apoptosis; basic fibroblast growth factor; Bax; Bcl-2; caspases; c-Myc neurons; p53;
D O I
10.1097/00001756-199909290-00039
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
USING flow cytometric analysis, we examined the temporal changes of p53, c-Myc, Bcl-2, Bax expression in: rat:primary cortex neurons after serum deprivation. Activities of:caspase-1 and caspase-3 were also measured. Serum deprivation induced apoptosis accompanied by a:rapid down-regulation of p53, Bcl-2 and an up-regulation of c-Myc, Bax and caspase-3 activity. Pretreatment with basic fibroblast growth factor prevented the apoptosis:with an attenuation of the changes of p53, Bcl-2, Bax levels and caspase-3 activity but had no effect on the change of c-Myc level. These results suggest that serum deprivation induces apoptosis through a signaling pathwat involving p53, Bcl-2, Bax, c-Myc and caspase-3. The effect of the basic fibroblast growth factor against apoptosis may result from its capability of blocking the apoptosis cascade. (C) 1999 Lippincott Williams & Wilkins.
引用
收藏
页码:3087 / 3091
页数:5
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