Article
Paradoxical activation of Raf by a novel Raf inhibitor.
Chemistry & biology - 1 Aug 1999
Hall-Jackson C A, Eyers P A, Cohen P, Goedert M, Boyle F T, Hewitt N, Plant H, Hedge P
Abstract excerpt
BACKGROUND: Raf is a proto-oncogene that is activated in response to growth factors or phorbol esters, and is thought to activate MAP kinase kinase-1 (MKK1) and hence the classical MAP kinase (MAPK) cascade. RESULTS: The compound ZM 336372 is identified as a potent and specific inhibitor of Raf isoforms in vitro. Paradoxically, exposure of cells to ZM 336372 induces > 100-fold activation of c-Raf (measured in the...
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