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Preclinical and Clinical Studies of Anticancer Agent-incorporating Polymer Micelles

Overview
Journal Cancer Sci
Specialty Oncology
Date 2009 May 23
PMID 19462526
Citations 111
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Abstract

The size of anticancer agent-incorporating micelles can be controlled within the diameter range of 20-100 nm to ensure that they do not penetrate normal vessel walls. With this development, it is expected that the incidence of drug-induced side-effects may be decreased owing to the reduced drug distribution in normal tissue. Micelle systems can also evade non-specific capture by the reticuloendothelial system because the outer shell of a micelle is covered with polyethylene glycol. Consequently, a polymer micelle carrier can be delivered selectively to a tumor by utilizing the enhanced permeability and retention effect. Moreover, a water-insoluble drug can be incorporated into polymer micelles. Presently, several anticancer agent-incorporating micelle carrier systems are under preclinical and clinical evaluation. Furthermore, nucleic acid-incorporating micelle carrier systems are also being developed.

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