期刊
ONCOGENE
卷 19, 期 10, 页码 1346-1353出版社
STOCKTON PRESS
DOI: 10.1038/sj.onc.1203429
关键词
Survivin; Cdk4; procaspase 3/p21 complex; Fas-mediated cell death; cell survival
Caspase 3 is ran essential death factor for the Fas-mediated cell death, and its inactivation in cells is initiated by an interaction with p21 on mitochondria or with PAP family member ILP, Survivin is also a member of HAP family and is specifically expressed during embryogenesis and in tumor cells and suppresses cell death signaling, In our current study, we demonstrated that Survivin translocation into the nucleus is dependent on Fas stimulation and cell proliferation. Survivin also interacts with the cell cycle regulator Cdk4, leading to Cdk2/Cyclin E activation and Rb phosphorylation, As a result of Survivin/Cdk4 complex formation, p21 is released from its complex with Cdk4 and interacts with mitochondrial procaspase 3 to suppress Fas-mediated cell death, Here, we propose that Survivin supports procaspase 3/p21 complex formation as a result of interaction with Cdk4 resulting in suppression of cell death signaling.
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