國家衛生研究院 NHRI:Item 3990099045/1218

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Title:	Paclitaxel-loaded poly(gamma-glutamic acid)-poly(lactide) nanoparticles as a targeted drug delivery system for the treatment of liver cancer
Other Titles:	Paclitaxel-loaded poly(γ-glutamic acid)-poly(lactide) nanoparticles as a targeted drug delivery system for the treatment of liver cancer
Authors:	Liang, HF;Chen, CT;Chen, SC;Kulkarni, AR;Chiu, YL;Chen, MC;Sung, HW
Contributors:	Division of Biotechnology and Pharmaceutical Research
Abstract:	The study was to develop pactitaxel-loaded formulations using a novel type of self-assembled nanoparticles (P/NPs) composed of block copolymers synthesized by poly(gamma-glutamic acid) and poly(lactide). For the potential of targeting liver cancer cells, galactosamine was conjugated on the prepared nanoparticles (Gal-P/NPs). In the in vitro studies. it was found that both the P/NPs and the Gal-P/NPs had a similar release profile of paclitaxel. The activity in inhibiting the growth of HepG2 cells by the Gal-P/NPs was comparable to that of a clinically available paclitaxel formulation (Phyxol(R), while the P/NPs displayed a significantly less activity (p<0.05). The biodistribution and anti-tumor efficacy of the prepared nanoparticles were Studied in hepatoma-tumor-bearing nude mice. It was found that the groups injected with Phyxol(R), the P/NPs or the Gal-P/NPs significantly delayed the tumor growth as compared to the control group injected with PBS (p<0.05). Among all studied groups, the group injected with the Gal-P/NPs appeared to have the most significant efficacy in the reduction of the size of the tumor. This is because a large number of the Gal-P/NPs were observed at the tumor site, and subsequently released their encapsulated paclitaxel to inhibit the growth of the tumor. The aforementioned results indicated that the Gal-P/NPs prepared in the study had a specific interaction with the hepatoma tumor induced in nude mice via ligand-receptor recognition. Therefore, the prepared Gal-P/NPs may be used as a potential drug delivery system for the targeted delivery to liver cancers. (C) 2005 Elsevier Ltd. All rights reserved.
Keywords:	Engineering, Biomedical;Materials Science, Biomaterials
Date:	2006-03
Relation:	Biomaterials. 2006 Mar;27(9):2051-2059.
Link to:	http://dx.doi.org/10.1016/j.biomaterials.2005.10.027
JIF/Ranking 2023:	http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=0142-9612&DestApp=IC2JCR
Cited Times(WOS):	https://www.webofscience.com/wos/woscc/full-record/WOS:000234962500045
Cited Times(Scopus):	http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=28744444691
Appears in Collections:	[Chiung-Tong Chen] Periodical Articles

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