Linifanib

Definition 1

An orally bioavailable receptor tyrosine kinase (RTK) inhibitor with potential antineoplastic activity. Linifanib inhibits members of the vascular endothelial growth factor (VEGF) and platelet-derived growth factor (PDGF) receptor families; it exhibits much less activity against unrelated RTKs, soluble tyrosine kinases, or serine/threonine kinases. This agent does not have a general antiproliferative effect due to its high dose requirement. However, linifanib may exhibit potent antiproliferative and apoptotic effects on tumor cells whose proliferation is dependent on mutant kinases, such as FMS-related tyrosine kinase receptor-3 (FLT3). (NCI Thesaurus)

Definition 2

A substance being studied in the treatment of several types of cancer. ABT-869 blocks the action of several growth factors. It may also block the growth of new blood vessels that tumors need to grow and may cause cancer cells to die. It is a type of receptor tyrosine kinase inhibitor and a type of angiogensis inhibitor. (NCI Dictionary)

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