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Journal of Chinese Pharmaceutical Sciences ›› 2021, Vol. 30 ›› Issue (9): 736-742.DOI: 10.5246/jcps.2021.09.061

• Original articles • Previous Articles     Next Articles

Preparation and evaluation of doxorubicin-luminespib co-loaded multivesicular liposomes

Yajie Liu, Yu Wang, Jiajia Li, Xiaoqing Xu, Xinru Li*()   

  1. Beijing Key Laboratory of Molecular Pharmaceutics and New Drug System; School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing 100191, China
  • Received:2021-05-14 Revised:2021-07-18 Accepted:2021-08-06 Online:2021-09-27 Published:2021-09-27
  • Contact: Xinru Li

Abstract:

A combinational therapeutic system that simultaneously administrates various pathways is preferred for anti-cancer treatment. In the present study, we successfully constructed a co-delivery system, multivesicular liposomes (MVLs) co-encapsulating doxorubicin (DOX) and luminespib (AUY922). A simple and accurate dual-wavelength spectrophotometric method was established for the determination of DOX and AUY922 in liposomal formulation. MVL-loading drugs were prepared by a multi-emulsion solvent evaporation method, which exhibited excellent physicochemical properties, such as particle size of 3–8 μm and high entrapment efficiency above 95% for DOX and 73% for AUY922. The synergetic cytotoxic effect for these two drugs was evaluated in MDA-MB-231 cells. The in vitro antitumor studies demonstrated the superior anti-proliferation activity of DOX and AUY922 with a combination index of 0.43, indicating a great synergistic effect. The experimental data suggested that combinational use of DOX and AUY922 within liposomes could be an effective way to develop efficient treatments of cancers.

Key words: Doxorubicin, Luminespib, Multivesicular liposomes, Combination therapy, Synergistic effect

Supporting: