期刊
COLLOIDS AND SURFACES B-BIOINTERFACES
卷 121, 期 -, 页码 206-213出版社
ELSEVIER
DOI: 10.1016/j.colsurfb.2014.05.005
关键词
Curcumin; Folate; mPEG-PLA; Micelles
资金
- Natural Science Foundation of Shandong Province, China [ZR2011HM026]
- National Natural Science Foundation of China [30973646]
Targeted drug delivery system for tumor cells is an appealing platform on enhancing the therapeutic effects and reducing the side effects of the drug. In this study, we developed folate-modified curcumin (Cur) loaded micelles (Cur-FPPs) for cancer chemotherapy. The targeting material, Folate-PEG(3000)-PIA(2000), was synthesized by the amide bond formation reaction. And the Cur loaded micelles were prepared by thin-film hydration method with mPEG(2000)-PLA(2000) (Cur-PPs) or mPEG(2000)-PLA(2000) and Folate-PEG(3000)-PLA(2000) (Cur-FPPs) as carrier. A central composite design (CCD) was used to optimize the formulation, and the optimized Cur-FPPs was prepared with the weight ratio of Folate-PEG(3000)-PLA(2000) and mPEG(2000)-PLA(2000) at 1:9. The average size of the mixed micelles was 70 nm, the encapsulating efficiency and drug-loading were 80.73 +/- 0.16% and 4.84 +/- 0.01%, respectively. Compared with the Cur propylene glycol solution, the in vitro release of Cur from Cur-FPPs showed a sustained manner. Furthermore, the in vitro cytotoxicity and cellular uptake of Cur-FPPs were significantly enhanced towards MCF-7 and HepG2 cells. The pharmacokinetic studies in rats indicated that a 3-fold increase in the half-life was achieved for Cur loaded micelle formulations relative to solubilized Cur. All the results demonstrated that folate-modified Cur micelles could serve as a potential nanocarrier to improve the solubility and anti-cancer activity of Cur. Crown Copyright (C) 2014 Published by Elsevier B.V. All rights reserved.
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