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Physiochemical Properties of Binary Pluronic Systems for Reversal of Multi-drug Resistant (MDR) Cancers

Authors
 Yun Jung-Min  ;  Park Ga-Young  ;  Kim Ha-Hyung  ;  Lee Jae-Hwi  ;  Lee Eun-Seong  ;  Youn Yu-Seok  ;  Lee Beom-Jin  ;  Oh Young-Taik  ;  Oh Kyung-Taek 
Citation
 Journal of Pharmaceutical Investigation, Vol.40(4) : 255-261, 2010 
Journal Title
 Journal of Pharmaceutical Investigation 
ISSN
 2093-5552 
Issue Date
2010
Keywords
Pluronic ; binary system ; nanosized ; MDR ; drug delivery system ; solubilization
Abstract
Pluronic as pharmaceutical excipients are listed in the US and British Pharmacopoeia. In particular, Pluronics exist as different compositions and display abundant phases as self-assembling into polymeric micelles with various morphologies depending on the aqueous solvent quality, the composition of structure, and hydrophilic-lipophilic balance (HLB). Pluronics were also known as a P-gp modulator, which was exploited as a reversal molecule of multi-drug resistant (MDR) cancers. We selected a lamella forming Pluronic L92 which has high hydrophobicity and relatively long PEO block among L series of Pluronics. The dispersion of L92 showed great size particles and low stability. To increase the stability and to decrease the particle size, secondary Pluronics (F68, F88, F98, F127, P85, P105, and P123) with relatively long PEO chain were added into 0.1 wt% Pluronic L92 dispersion. The stability of binary systems was increased due to incorporated long PEO chain. Their particle sizes slightly decreased to over 200~400 nm and their solubilization capacity of binary systems didn't change except Pluronic L92/P123 mixtures. The L92/P123 systems showed ca. 100 nm sizes and lowest turbidity among the all systems. The solubilization capacity of 0.1 wt% L92/0.1 wt% P123 was slightly increased compared to 0.1 wt% L92 mono system and other binary systems. These nano-sized binary systems may have potential as alternative drug delivery systems with simple preparation method and overcome the drawbacks of mono systems such as low stability and loading capacity.
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Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Radiology (영상의학교실) > 1. Journal Papers
Yonsei Authors
Oh, Young Taik(오영택) ORCID logo https://orcid.org/0000-0002-4438-8890
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/102316
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