<n0:ComplexDefinition xmlns:n0="http://ncicb.nci.nih.gov/xml/owl/EVS/ComplexProperties.xsd#"><n0:def-definition>An indolinone-based small molecule selective tyrosine kinase inhibitor with potential antineoplastic activity. SU5402 blocks the activities of vascular endothelial growth factor receptors (VEGFR) and fibroblast growth factor 1 (FGFR1) via competing with ATP for the specific binding site within the catalytic domain of these receptors. This agent was shown to inhibit cell growth, decrease cell viability in dose-dependent manner, and induce apoptosis.</n0:def-definition><n0:def-source>NCI</n0:def-source></n0:ComplexDefinition>