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Journal of Chinese Pharmaceutical Sciences ›› 2017, Vol. 26 ›› Issue (7): 521-527.DOI: 10.5246/jcps.2017.07.058

• Original articles • Previous Articles     Next Articles

Characterization of amphiphilic dendrimer modified PEG-PLA nanoparticles prepared by a double emulsion-solvent evaporation method

Xin Li, Ning Pang, Ji Li, Xianrong Qi*   

  1. Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery System; Department of Pharmaceutics, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing 100191, China
  • Received:2017-05-10 Revised:2017-05-23 Online:2017-07-28 Published:2017-06-04
  • Contact: Tel.: +86-010-82801584, Fax: +86-010-82801584, E-mail: qixr@bjmu.edu.cn
  • Supported by:

    National Natural Science Foundation of China (Grant No. 81473156, 81673365, 81273454), Doctoral Foundation of the Ministry of Education (Grant No. 20130001110055), National Key Basic Research Program (Grant No. 2013CB932501).

Abstract:

Drug delivery by nanocarriers requires characterizations of suitable particle size, high drug loading and safety. In this work, we prepared an amphiphilic dendrimer modified PEG-PLA mixed nanoparticles (NPs) by a double emulsion-solvent evaporation (DESE) method. The particle size and drug encapsulation efficacy (EE) were compared to evaluate and optimize the preparation parameters. The mixed NPs had average size ranging from (102±1) nm to (137±5) nm, and the zeta potential turned to positive with incorporation of the amphiphilic dendrimer. The NPs showed different EE of docetaxel (DTX) and paclitaxel (PTX) with higher affinity to more lipophilic PTX. The blank mixed NPs showed little cytotoxicity, and the DTX-loaded NPs could effectively facilitate the antiproliferation activity on PC-3 cells. The NPs could be used as an effective drug delivery system, and its anti-tumor effect is worthy of further study.

Key words: PEG-PLA nanoparticles, Docetaxel, Paclitaxel, Double emulsion-solvent evaporation method, Amphiphilic dendrimer

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