XL184

Definition / meaning of XL184

An orally bioavailable, small molecule receptor tyrosine kinase (RTK) inhibitor with potential antineoplastic activity. XL184 strongly binds to and inhibits several tyrosine receptor kinases. Specifically, XL184 appears to have a strong affinity for the hepatocyte growth factor receptor (Met) and vascular endothelial growth factor receptor 2 (VEGFR2), which may result in inhibition of tumor growth and angiogenesis, and tumor regression. This agent has also been shown to inhibit mast/stem cell growth factor (KIT), FMS-like tyrosine kinase 3 (Flt3) and tyrosine-protein kinase receptor (Tie-2).

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Source(s):

The Web site of the National Cancer Institute (http://www.cancer.gov/)

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