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J Neurooncol. 2001 Feb;51(3):205-18.

Cip/Kip cell-cycle inhibitors: a neuro-oncological perspective.

Author information

1
Division of Neurosurgery and The Arthur and Sonia Labatt Brain Tumour Research Centre, The Hospital for Sick Children, University of Toronto, Canada.

Abstract

The cell cycle is a precisely controlled cellular program that ensures normal cellular proliferation and development. The cyclin-dependant kinases (CDK) are molecules central to the continued progression through the cell-cycle checkpoints and as such are regulated by various mechanisms including cyclin levels, phosphorylation/dephosphorylation and cyclin-dependant kinase inhibitors (CKI). The CKIs are grouped into two families based on their structure and function, four lnk4 CKIs and three Cip/Kip CKIs. Abnormalities in these proteins can give rise to developmental defects and cancer. In this review, we will discuss the biochemistry and cell biology of the each of the Cip/Kip CKIs, their role in development as evidenced by targeted mutations in mice, and their role as possible tumor suppressor genes.

PMID:
11407593
[Indexed for MEDLINE]

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