PMID: 11327114May 1, 2001Paper

Checkpoint genes in cancer

Annals of Medicine
E R McDonald, W S El-Deiry

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.

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Citations

May 28, 2003·Cancer Letters·M Ahmad ChaudhryRuth J Muschel
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Mar 26, 2003·Genes & Development·Brian J Tunquist, James L Maller

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Cell Checkpoints & Regulators

Cell cycle checkpoints are a series of complex checkpoint mechanisms that detect DNA abnormalities and ensure that DNA replication and repair are complete before cell division. They are primarily regulated by cyclins, cyclin-dependent kinases, and the anaphase-promoting complex/cyclosome. Here is the latest research.

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