Journal
ONCOGENE
Volume 25, Issue 38, Pages 5190-5200Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/sj.onc.1209651
Keywords
Rb; E2F; development; tumorigenesis cell; proliferation and differentiation
Funding
- NIGMS NIH HHS [R01 GM074197] Funding Source: Medline
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The retinoblastoma gene Rb was the first tumor suppressor gene cloned, and it is well known as a negative regulator of the cell cycle through its ability to bind the transcription factor E2F and repress transcription of genes required for S phase. Although over 100 other proteins have been reported to interact with Rb, in most cases these interactions are much less well characterized. Therefore, this review will primarily focus on Rb and E2F interactions. In addition to cell cycle regulation, studies of Rb and E2F proteins in animal models have revealed important roles for these proteins in apoptosis and differentiation. Recent screens of Rb/E2F target genes have identified new targets in all these areas. In addition, the mechanisms determining how different subsets of target genes are regulated under different conditions have only begun to be addressed and offer exciting possibilities for future research.
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