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  • An orally active, synthetic retinoid, developed to overcome all-trans retinoic acid (ATRA) resistance, with potential antineoplastic activity. As a specific retinoic acid receptor (RAR) alpha/beta agonist, tamibarotene is approximately ten times more potent than ATRA in inducing cell differentiation and apoptosis in HL-60 (human promyelocytic leukemia) cell lines in vitro. Due to a lower affinity for cellular retinoic acid binding protein (CRABP), tamibarotene may show sustained plasma levels compared to ATRA.In addition, this agent may exhibit a lower toxicity profile than ATRA, in part, due to the lack of affinity for the RAR-gamma receptor, the major retinoic acid receptor in the dermal epithelium. Check for \'https://www.cancer.gov/about-cancer/treatment/clinical-trials/intervention/C71025\' active clinical trials using this agent. (\'http://ncit.nci.nih.gov/ncitbrowser/ConceptReport.jsp?dictionary=NCI%20Thesaurus&code=C71025\' NCI Thesaurus)
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