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Original Article

Intracellular target delivery of 10-hydroxycamptothecin with solid lipid nanoparticles against multidrug resistance

, , , , , & show all
Pages 800-805 | Received 20 Nov 2014, Accepted 14 Feb 2015, Published online: 13 Mar 2015
 

Abstract

The main objective of this study was to design a suitable drug delivery system for 10-hydroxycamptothecin (HCPT). In this study, HCPT-loaded solid lipid nanoparticle (HCPT-loaded SLN) was successfully prepared. The HCPT-loaded SLN was characterized by size, entrapment efficiency and drug release manner. The cytotoxicity of HCPT-loaded SLN was assessed in vitro using HepG2/HCPT cells and in vivo utilizing human tumor xenograft nude mouse model. HCPT-loaded SLN indicated the ability to target HepG2/HCPT cells and accumulated higher drug content in HepG2/HCPT cells. HCPT-loaded SLN enhanced the cytotoxicity of HCPT in a concentration-dependent manner. Based on these results, HCPT-loaded SLN suggested being a promising vehicle for liver-targeted drug delivery. Moreover, it can be of clinical interest to overcome multidrug resistance (MDR) effectively.

Acknowledgements

The authors are indebted to the Scientific Research Foundation for the Returned Overseas Chinese Scholars (State Education Ministry, 2010-1174) for their support. The linguistic expertise shared by Mr. Jean Felix Mukerabigwi, Assistant lecturer, Applied Chemistry Department at University of Rwanda is also highly appreciated.

Declaration of interest

The authors report no conflicts of interest. The authors alone are responsible for the content and writing of this article.

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