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Synthesis and Cytotoxic Activity of Cisplatin Analogue with an Ursodeoxycholate Ligand

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New cisplatin analogue carrying a cholic acid, complex [PtCl(UDC)(en)] (en = ethylenediamine, UDC = Ursodeoxycholate) has been synthesized from [PtCl2(en)] and characterized. This novel complex shows increased cytotoxicity against a cisplatin-resistant ovarian tumor cell line (CH1cisR) as compared with the parent compound cisDDP. Moreover, while cisplatin only exerts its activity over the G2/M population, [PtCl(UDC)(en)] seems to induce apoptosis both in cycling and resting cells. Intrinsically fluorescence at room temperature was observed for this platinum complex with a quantum yield Φ = 0.11. In order to achieve dynamic pictures of the biological effects of cisplatin analogues, it would be very interesting to have intrinsically fluorescent compounds with cytotoxic activity, especially against drug-resistant cell-lines.

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Keywords: Autofluorescent Pt(II) complexes; Bile acids; Cytotoxic activity; Shuttle compounds

Document Type: Research Article

Publication date: 2007-07-01

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  • Letters in Drug Design & Discovery publishes original letters on all areas of rational drug design and discovery including medicinal chemistry, in-silico drug design, combinatorial chemistry, high-throughput screening, drug targets, and structure-activity relationships. The emphasis will be on publishing quality papers very rapidly. Letters will be processed rapidly by taking full advantage of Internet technology for both the submission and review of manuscripts. The journal is essential reading to all pharmaceutical scientists involved in research in drug design and discovery.
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