Checkpoint genes in cancer
- 1 January 2001
- journal article
- review article
- Published by Taylor & Francis in Annals of Medicine
- Vol. 33 (2) , 113-122
- https://doi.org/10.3109/07853890109002066
Abstract
The mammalian cell cycle is exquisitely controlled by a 'machinery' composed of cyclin-dependent kinases and their binding partners, the cyclins. These kinases regulate transitions into DNA synthesis and mitosis, and their inactivity contributes to cellular quiescence, differentiation and senescence. Cell cycle transitions are, in turn, controlled by checkpoints that monitor ribonucleotide pools, oxygen tension, the extracellular environment, growth signalling programmes, the status of DNA replication, and the mitotic spindle apparatus. Genes positively controlling cell cycle checkpoints can be targets for oncogenic activation in cancer, whereas negative regulators, such as tumour suppressor genes, are targeted for inactivation. Understanding the molecular details of cell cycle regulation and checkpoint abnormalities in cancer offers insight into potential therapeutic strategies.Keywords
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