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ID: ALA4043145
Journal: Bioorg Med Chem Lett
Title: Pyridine-pyrimidine amides that prevent HGF-induced epithelial scattering by two distinct mechanisms.
Authors: Siddiqui-Jain A, Hoj JP, Hargiss JB, Hoj TH, Payne CJ, Ritchie CA, Herron SR, Quinn C, Schuler JT, Hansen MDH.
Abstract: Stimulation of cultured epithelial cells with scatter factor/hepatocyte growth factor (HGF) results in individual cells detaching and assuming a migratory and invasive phenotype. Epithelial scattering recapitulates cancer progression and studies have implicated HGF signaling as a driver of cancer metastasis. Inhibitors of HGF signaling have been proposed to act as anti-cancer agents. We previously screened a small molecule library for compounds that block HGF-induced epithelial scattering. Most hits identified in this screen exhibit anti-mitotic properties. Here we assess the biological mechanism of a compound that blocks HGF-induced scattering with limited anti-mitotic activity. Analogs of this compound have one of two distinct activities: inhibiting either cell migration or cell proliferation with cell cycle arrest in G2/M. Each activity bears unique structure-activity relationships. The mechanism of action of anti-mitotic compounds is by inhibition of microtubule polymerization; these compounds entropically and enthalpically bind tubulin in the colchicine binding site, generating a conformational change in the tubulin dimer.
CiteXplore: 28780159