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Mini-Reviews in Medicinal Chemistry


ISSN (Print): 1389-5575
ISSN (Online): 1875-5607

Small Molecule Inhibitors of Lck: The Search for Specificity within a Kinase Family

Author(s): Malcolm A. Meyn III and Thomas E. Smithgall

Volume 8, Issue 6, 2008

Page: [628 - 637] Pages: 10

DOI: 10.2174/138955708784534454

Price: $65


The Src family of non-transmembrane protein kinases is comprised of eleven homologous members in mammals. Together, these kinases regulate a wide variety of cellular processes including cell survival, proliferation, differentiation, and motility. One member of this family, Lck, plays a pivotal role in T-cell signaling. Inhibition of Lck with small molecules has significant potential for therapeutic immunosuppression and treatment of diseases such as rheumatoid arthritis and asthma. Critical for successful clinical use of any Lck inhibitor is high specificity for Lck as inhibition of other members of the Src kinase family may result in unwanted side effects. In this review we provide an overview of the various synthetic compounds currently under investigation as Lck-specific inhibitors. In addition we provide an analysis of the properties of these compounds that account for the specificity required for the inhibition of one of eleven highly similar kinases.

Keywords: Lck, Src, kinase, specificity, inhibitor, A-770041, BMS-243117, pyrrolopyrimidine

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