CYCLIN-DEPENDENT KINASES AND PRB - REGULATORS OF THE PROLIFERATION DIFFERENTIATION SWITCH

被引:32
作者
KRANENBURG, O
VANDEREB, AJ
ZANTEMA, A
机构
[1] Department of Molecular Carcinogenesis, Sylvius Laboratory, Leiden University, 2300 RA Leiden
关键词
RETINOBLASTOMA GENE PRODUCT; DIFFERENTIATION; TUMORIGENESIS; CYCLIN-DEPENDENT KINASE;
D O I
10.1016/0014-5793(95)00587-Y
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
The retinoblastoma susceptibility gene (RBI) is essential for normal embryonic development. Loss of RBI leads to uncontrolled proliferation of a number of cell types but may also prevent proper terminal differentiation. The growth-suppressive and differentiation-inducing properties of pRb are impaired by cyclin-dependent kinase (cdk)-mediated phosphorylation. Hence, inhibition of cdk activity is probably a prerequisite for terminal differentiation. Indeed, forced cyclin or cdk expression tan prevent terminal differentiation in various cell types, probably through inhibition of pRb and, possibly, differentiation-specific transcription factors.
引用
收藏
页码:103 / 106
页数:4
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