Pathway block: The mechanism by which imatinib (Gleevec) works is to stop cell-proliferation actions of the KIT and PDGFRA tyrosine kinases which are growth factor receptors. They initiate a signaling pathway which causes the cell to proliferate. Signaling normally occurs only when KIT or PDGFRA receptors are triggered by ligands.. These are blocked by Gleevac
Answered 8/5/2014
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