PMID: 8581512Oct 1, 1995Paper

Inhibitors of cyclin-dependent kinase and cancer

Journal of Molecular Medicine : Official Organ of the Gesellschaft Deutscher Naturforscher Und Ärzte
J R Biggs, A S Kraft

Abstract

Recent research has yielded a dramatic increase in the number of connections between oncogenesis and the proteins which regulate the cell cycle. Three classes of protein which inhibit the activity of cyclin-dependent kinases (CDKs) have emerged as potential targets for oncogenic inactivation. p16 and related proteins inhibit the cyclin/CDK complexes which regulate the transition from G1 to S phase; numerous studies have revealed that p16 is mutated in most tumor cell lines and in some types of primary tumor. p21/WAF1/Cip 1 and the related p27Kip protein inhibit a broader range of cyclin/CDK complexes than p16. Although the absence of p21/WAF1/Cip1 from cyclin/CDK complexes is correlated with cellular transformation, no mutations in this gene have been found in tumors or tumor-derived cell lines. A third class of genes which are potential targets for oncogenic inactivation are the kinases and phosphatases which regulate the activity of cyclin/CDK complexes by phosphorylation and dephosphorylation of the CDK proteins. Disruption of any of these genes would result in loss of normal regulation of cell growth.

Associated Clinical Trials

Aug 25, 2017·Donald Trump, MD, Donald Trump, MD

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