Design and evaluation of mPEG-PLA micelles functionalized with drug-interactive domains as improved drug carriers for docetaxel delivery
2017
AbstractPolymeric micelles are very attractive drug delivery systems for hydrophobic agents, owing to their readily tailorable chemical structure and ease for scale-up preparation. However, the intrinsic poor stability of drug-loaded micelles presents one of the major challenges for most micellar systems in the translation to clinical applications. In this study, a simple, well-defined, and easy-to-scale up 9-Fluorenylmethoxycarbonyl (Fmoc) and tert-butoxycarbonyl (Boc) containing lysine dendronized mPEG-PLA (mPEG-PLA-Lys(FB)2) micellar formulation was designed and prepared for docetaxel (DTX) delivery, in an effort to improve the stability of the micelles, and its physicochemical properties, pharmacokinetics, and anti-tumor efficacy against SKOV-3 ovarian cancer were evaluated. MPEG-PLA-Lys(FB)2 was synthesized via a three-step synthetic route, and it actively interacted with DTX in aqueous media to form stable micelles with small particle sizes (~17–19 nm) and narrow size distribution (PI < 0.1), which ...
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