Imatinib response in two GIST patients carrying two hitherto functionally uncharacterized PDGFRA mutations: an imaging, biochemical and molecular modeling study.

Abstract excerpt

Beside the well known "in vivo" and "in vitro" Imatinib resistant D842V mutation in PDGFRA receptor, very few are the information concerning the "in vivo" Imatinib activity with respect to the other PDGFRA mutations for which only "in vitro" data are available. Two patients carrying PDGFRA mutations in exons 18 (involving residues DIMH842-845) and 12 (V561D), respectively, were treated with Imatinib at a dose of...

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