Antagonistic and agonistic effects of quinazoline tyrosine kinase inhibitors on mutant EGF receptor function.

Abstract excerpt

A mutated form of the EGF receptor (EGFRvIII), resulting from deletion of exons 2-7, is an oncogenic protein that is expressed in multiple human tumors. This mutation induces ligand-independent activation of the EGFR tyrosine kinase and thereby can initiate unregulated cell growth and tumorigenesis. Thus, inhibition of the kinase activity of EGFRvIII is a potential means of suppressing its oncogenic properties....

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