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  • An orally bioavailable, small molecule inhibitor of vascular endothelial growth factor (VEGF) synthesis with potential antiangiogenesis and antineoplastic activities. VEGF inhibitor PTC299 targets post-transcriptionally by selectively binding the 5\'- and 3\'-untranslated regions (UTR) of VEGF messenger RNA (mRNA), thereby preventing translation of VEGF. This inhibits VEGF protein production and decreases its levels in the tumor and bloodstream. In turn, this may result in the inhibition of migration, proliferation and survival of endothelial cells, microvessel formation, the inhibition of tumor cell proliferation, and eventually the induction of tumor cell death. VEGFs are upregulated in a variety of tumor cell types and play key roles during angiogenesis. In addition, PTC299 may enhance the antitumor activity of other chemotherapeutic agents. Check for \'https://www.cancer.gov/about-cancer/treatment/clinical-trials/intervention/C91100\' active clinical trials using this agent. (\'http://ncit.nci.nih.gov/ncitbrowser/ConceptReport.jsp?dictionary=NCI%20Thesaurus&code=C91100\' NCI Thesaurus)
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