Abstract
Malignant gliomas are frequently chemoresistant and this resistance seems to depend on at least two mechanisms. First, the poor penetration of many anticancer drugs across the blood-brain barrier (BBB), the blood-cerebrospinal fluid barrier (BCSFB) and blood-tumor barrier (BTB), due to their interaction with several ATP-binding cassette (ABC) drug efflux transporters that are overexpressed by the endothelial or epithelial cells of these barriers. Second, resistance may involve the tumor cells themselves. Although ABC drug efflux transporters in tumor cells confer multidrug resistance (MDR) on several other solid tumors, their role in gliomas is unclear. This review focuses on astrocytes and summarizes the current state of knowledge about the expression, distribution and function of ABC transporters in normal and tumor astroglial cells. The recognition of anticancer drugs by ABC transporters in astroglial cells and their participation in the multidrug resistance phenotype of human gliomas is discussed.
Keywords: ABC transporters, astrocytes, glioma, chemoresistance
Current Cancer Drug Targets
Title: Role of ABC Transporters in the Chemoresistance of Human Gliomas
Volume: 6 Issue: 5
Author(s): Xavier Decleves, Alexandra Amiel, Jean-Yves Delattre and Jean-Michel Scherrmann
Affiliation:
Keywords: ABC transporters, astrocytes, glioma, chemoresistance
Abstract: Malignant gliomas are frequently chemoresistant and this resistance seems to depend on at least two mechanisms. First, the poor penetration of many anticancer drugs across the blood-brain barrier (BBB), the blood-cerebrospinal fluid barrier (BCSFB) and blood-tumor barrier (BTB), due to their interaction with several ATP-binding cassette (ABC) drug efflux transporters that are overexpressed by the endothelial or epithelial cells of these barriers. Second, resistance may involve the tumor cells themselves. Although ABC drug efflux transporters in tumor cells confer multidrug resistance (MDR) on several other solid tumors, their role in gliomas is unclear. This review focuses on astrocytes and summarizes the current state of knowledge about the expression, distribution and function of ABC transporters in normal and tumor astroglial cells. The recognition of anticancer drugs by ABC transporters in astroglial cells and their participation in the multidrug resistance phenotype of human gliomas is discussed.
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Cite this article as:
Decleves Xavier, Amiel Alexandra, Delattre Jean-Yves and Scherrmann Jean-Michel, Role of ABC Transporters in the Chemoresistance of Human Gliomas, Current Cancer Drug Targets 2006; 6 (5) . https://dx.doi.org/10.2174/156800906777723930
DOI https://dx.doi.org/10.2174/156800906777723930 |
Print ISSN 1568-0096 |
Publisher Name Bentham Science Publisher |
Online ISSN 1873-5576 |
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