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The performance of docetaxel-loaded solid lipid nanoparticles targeted to hepatocellular carcinoma

✍ Scribed by Zhenghong Xu; Lingli Chen; Wangwen Gu; Yu Gao; Liping Lin; Zhiwen Zhang; Yong Xi; Yaping Li


Book ID
104003717
Publisher
Elsevier Science
Year
2009
Tongue
English
Weight
679 KB
Volume
30
Category
Article
ISSN
0142-9612

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✦ Synopsis


Human hepatocellular carcinoma (HCC) is one of the major causes of death worldwide. Targeted uptake of therapeutic agent in the cell-, tissue-or disease-specific manner represents a potential technology for the treatment of HCC. A new docetaxel-loaded hepatoma-targeted solid lipid nanoparticle (tSLN) was designed and prepared with galactosylated dioleoylphosphatidyl ethanolamine. The cellular cytotoxicity, cellular uptake, subcellular localization, in vivo toxicity, therapeutic effect, biodistribution and histology of tSLNs were investigated. The tSLNs showed the particle size about 120 nM with encapsulation efficiency >90%, a low burst effect within the first day and a sustained release for the next 29 days in vitro. Cytotoxicity of tSLNs against hepatocellular carcinoma cell line BEL7402 was superior to Taxotere Γ’ and non-targeted SLNs (nSLNs). The tSLNs also showed better tolerant and antitumor efficacy in murine model bearing hepatoma compared with Taxotere Γ’ or nSLNs. The studies on cellular uptake and biodistribution indicated that the better antitumor efficacy of tSLNs was attributed to both the increased accumulation of drug in tumor and more cellular uptake by hepatoma cells. The histology demonstrated that tSLNs had no detrimental effect on both healthy liver and liver with fibrosis. These results implied that this targeted nanocarrier of docetaxel could enhance its antitumor effect in vivo with low systemic toxicity for the treatment of locally advanced and metastatic HCC.


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