alexa Extravasation of polymeric nanomedicines across tumor vasculature.
Oncology

Oncology

Journal of Carcinogenesis & Mutagenesis

Author(s): Danquah MK, Zhang XA, Mahato RI

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Abstract Tumor microvasculature is fraught with numerous physiological barriers which hinder the efficacy of anticancer agents. These barriers include chaotic blood supply, poor tumor vasculature permeability, limited transport across the interstitium due to high interstitial pressure and absence of lymphatic network. Abnormal microvasculature also leads to hypoxia and acidosis which limits effectiveness of chemotherapy. These barriers restrict drug or drug carrier extravasation which hampers tumor regression. Targeting key features of the tumor microenvironment such as tumor microvessels, interstitial hypertension and tumor pH is a promising approach to improving the efficacy of anticancer drugs. This review highlights the current knowledge on the distinct tumor microenvironment generated barriers which limit extravasation of drugs and focuses on modalities for overcoming these barriers using multi-functional polymeric carriers. Special attention is given to utilizing polymeric nanomedicines to facilitate extravasation of anticancer drugs for future cancer therapy. Copyright © 2010 Elsevier B.V. All rights reserved. This article was published in Adv Drug Deliv Rev and referenced in Journal of Carcinogenesis & Mutagenesis

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