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Magnetic-nanoparticle-modified paclitaxel for targeted therapy for prostate cancer

Paper ID Volume ID Publish Year Pages File Format Full-Text
8995 612 2010 9 PDF Available
Title
Magnetic-nanoparticle-modified paclitaxel for targeted therapy for prostate cancer
Abstract

A nontoxic drug nanocarrier containing carboxyl groups was successfully developed by mixing magnetic nanoparticles (MNPs) of Fe3O4 with the water-soluble polyaniline derivative poly[aniline-co-sodium N-(1-one-butyric acid) aniline] (SPAnNa) and doping with HCl aqueous solution to form SPAnH/MNPs shell/core. SPAnH/MNPs could be used to effectively immobilize the hydrophobic drug paclitaxel (PTX), thus enhancing the drug’s thermal stability and water solubility. Up to 302.75 μg of PTX could be immobilized per mg of SPAnH/MNPs. SPAnH/MNPs-bound-PTX (bound-PTX) was more stable than free-PTX at both 25 °C and 37 °C. Furthermore, bound-PTX was more cytotoxic to human prostate carcinoma cells (PC3 and CWR22R) than free-PTX at 37 °C, and the inhibition of cellular growth was even more pronounced when magnetic targeting was applied to the bound-PTX. These data indicate that this magnetically targeted drug delivery system provides more effective treatment of prostate cancer cells using lower therapeutic doses and thus with potentially fewer side-effects.

Keywords
Drug nanocarriers; Taxane drug; Paclitaxel; Prostate cancer; Polyaniline derivative
First Page Preview
Magnetic-nanoparticle-modified paclitaxel for targeted therapy for prostate cancer
Publisher
Database: Elsevier - ScienceDirect
Journal: Biomaterials - Volume 31, Issue 28, October 2010, Pages 7355–7363
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering