NCIt definition : An orally bioavailable synthetic carbothioamide with potential antineoplastic activity.
Multitargeted receptor tyrosine kinase inhibitor MP470 binds to mutant forms of the
stem cell factor receptor (c-Kit; SCFR), inhibiting clinically relevant mutants of
this receptor tyrosine kinase that may be associated with resistance to therapy. In
addition, MP470 inhibits activities of other receptor tyrosine kinases, such as c-Met,
Ret oncoprotein, and mutant forms of Flt3 and PDGFR alpha, which are frequently dysregulated
in variety of tumors. This agent also suppresses the induction of DNA repair protein
Rad51, thereby potentiating the activities of DNA damage-inducing agents. Mutant forms
of c-Kit are often associated with tumor chemoresistance.;
Alternative definition : NCI-GLOSS: A substance being studied in the treatment of several types of cancer.
It blocks the action of certain enzymes involved in cell growth and the repair of
DNA damaged by some anticancer drugs. It is a type of tyrosine kinase inhibitor and
a type of recombinase inhibitor.;