Abstract
A novel water soluble and biodegradable cyclotriphosphazene-paclitaxel conjugate was prepared by reacting 2′-succinyl paclitaxel with cyclotriphosphazenes bearing equimolar glycyl-l-lysine and methoxy poly(ethylene glycol) as side groups. The macromolecular conjugate was found to self-assemble in aqueous solution to form stable micelles with a mean hydrodynamic diameter of 24.7 nm and a low critical micelle concentration of 10 mg/L. The present conjugate exhibited lower than free paclitaxel but reasonably high in vitro cytotoxicity against selected human tumor cells due to their hydrolytic degradation in PBS solution.
Original language | English |
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Pages (from-to) | 6410-6413 |
Number of pages | 4 |
Journal | Bioorganic and Medicinal Chemistry Letters |
Volume | 18 |
Issue number | 24 |
DOIs | |
State | Published - 15 Dec 2008 |
Bibliographical note
Funding Information:This work was supported by a Korea Research Foundation Grant (KRF-2004-005-C00090), by Seoul R & BD Program (10816), by the SRC program of the Korea Science and Engineering Foundation through the Center for Intelligent Nano-Bio Materials at Ewha Womans University (Grant R11-2005-008-01002-0).
Keywords
- Antitumor agent
- Cyclotriphosphazene
- Paclitaxel
- Prodrug