Blood-pool multifunctional nanoparticles formed by temperature-induced phase transition for cancer-targeting therapy and molecular imaging

Title
Blood-pool multifunctional nanoparticles formed by temperature-induced phase transition for cancer-targeting therapy and molecular imaging
Authors
Keun Sang Oh이상민나진희Jeong-Yeon KimDong-Eog Kim김광명권익찬Soon Hong YukSeo Young Jeong
Keywords
Multifunctional nanoparticles; Pluronic F-68; Lipiodol; Temperature-induced phase transition; Cancer-targeting therapy; Molecular imaging
Issue Date
2012-11
Publisher
International journal of pharmaceutics
Citation
VOL 437, NO 1-2, 192-202
Abstract
Multifunctional nanoparticles (NPs) were prepared based on temperature-induced phase transition in a molten mixture of Lipiodol?, Tween 80, paclitaxel (PTX), and Pluronic F-68, wherein the Lipiodol?/Tween 80 mixture is used as a solubilizer for PTX, and Pluronic F-68 is used for the stabilization of the molten mixture. The morphology and size distribution of optimized multifunctional NPs were observed using transmittance electron microscopy (TEM) and a particle size analyzer. In the optical imaging of tumor-bearing mice using a near-infrared fluorescence (NIRF) imaging system, the multifunctional NPs were evaluated in terms of a time-dependent excretion profile, in vivo biodistribution and tumor-targeting capability compared to free fluorescence dye. In addition, the prolonged circulation of multifunctional NPs was confirmed by enhancement of the blood-pool in live animals using a micro-CT imaging system, because iodine-containing Lipiodol? has an X-ray enhancement property. Finally, the anti-tumor efficacy of multifunctional NPs was monitored by injecting the multifunctional NPs into the tail veins of tumor-bearing mice. The multifunctional NPs showed excellent tumor targetability and anti-tumor efficacy in tumor-bearing mice, caused by the enhanced permeation and retention (EPR) effect.
URI
http://pubs.kist.re.kr/handle/201004/43747
ISSN
03785173
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KIST Publication > Article
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