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A synthetic silicon-containing agent related to camptothecin with antineoplastic properties. Cositecan stabilizes the cleavable complex between topoisomerase I and DNA, resulting in DNA breaks and consequently triggering apoptosis. Because it is lipophilic, karenitecin exhibits enhanced tissue penetration and bio-availability compared to water-soluble camptothecins. Check for \'https://www.cancer.gov/about-cancer/treatment/clinical-trials/intervention/C1877\' active clinical trials using this agent. (\'http://ncit.nci.nih.gov/ncitbrowser/ConceptReport.jsp?dictionary=NCI%20Thesaurus&code=C1877\' NCI Thesaurus)
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