Multidrug Resistance in Breast Cancer: From In Vitro Models to Clinical Studies

The development of multidrug resistance (MDR) and subsequent relapse on therapy is a widespread problem in breast cancer, but our understanding of the underlying molecular mechanisms is incomplete. Numerous studies have aimed to establish the role of drug transporter pumps in MDR and to link their e...

Full description

Saved in:
Bibliographic Details
Main Authors: N. S. Wind, I. Holen
Format: Article
Language:English
Published: Wiley 2011-01-01
Series:International Journal of Breast Cancer
Online Access:http://dx.doi.org/10.4061/2011/967419
Tags: Add Tag
No Tags, Be the first to tag this record!
_version_ 1850166408492613632
author N. S. Wind
I. Holen
author_facet N. S. Wind
I. Holen
author_sort N. S. Wind
collection DOAJ
description The development of multidrug resistance (MDR) and subsequent relapse on therapy is a widespread problem in breast cancer, but our understanding of the underlying molecular mechanisms is incomplete. Numerous studies have aimed to establish the role of drug transporter pumps in MDR and to link their expression to response to chemotherapy. The ATP-binding cassette (ABC) transporters are central to breast cancer MDR, and increases in ABC expression levels have been shown to correlate with decreases in response to various chemotherapy drugs and a reduction in overall survival. But as there is a large degree of redundancy between different ABC transporters, this correlation has not been seen in all studies. This paper provides an introduction to the key molecules associated with breast cancer MDR and summarises evidence of their potential roles reported from model systems and clinical studies. We provide possible explanations for why despite several decades of research, the precise role of ABC transporters in breast cancer MDR remains elusive.
format Article
id doaj-art-e04b88782f474c608b3297e576b91e86
institution OA Journals
issn 2090-3189
language English
publishDate 2011-01-01
publisher Wiley
record_format Article
series International Journal of Breast Cancer
spelling doaj-art-e04b88782f474c608b3297e576b91e862025-08-20T02:21:28ZengWileyInternational Journal of Breast Cancer2090-31892011-01-01201110.4061/2011/967419967419Multidrug Resistance in Breast Cancer: From In Vitro Models to Clinical StudiesN. S. Wind0I. Holen1Academic Unit of Clinical Oncology, DU10, Medical School, University of Sheffield, Beech Hill Road, Sheffield S10 2RX, UKAcademic Unit of Clinical Oncology, DU10, Medical School, University of Sheffield, Beech Hill Road, Sheffield S10 2RX, UKThe development of multidrug resistance (MDR) and subsequent relapse on therapy is a widespread problem in breast cancer, but our understanding of the underlying molecular mechanisms is incomplete. Numerous studies have aimed to establish the role of drug transporter pumps in MDR and to link their expression to response to chemotherapy. The ATP-binding cassette (ABC) transporters are central to breast cancer MDR, and increases in ABC expression levels have been shown to correlate with decreases in response to various chemotherapy drugs and a reduction in overall survival. But as there is a large degree of redundancy between different ABC transporters, this correlation has not been seen in all studies. This paper provides an introduction to the key molecules associated with breast cancer MDR and summarises evidence of their potential roles reported from model systems and clinical studies. We provide possible explanations for why despite several decades of research, the precise role of ABC transporters in breast cancer MDR remains elusive.http://dx.doi.org/10.4061/2011/967419
spellingShingle N. S. Wind
I. Holen
Multidrug Resistance in Breast Cancer: From In Vitro Models to Clinical Studies
International Journal of Breast Cancer
title Multidrug Resistance in Breast Cancer: From In Vitro Models to Clinical Studies
title_full Multidrug Resistance in Breast Cancer: From In Vitro Models to Clinical Studies
title_fullStr Multidrug Resistance in Breast Cancer: From In Vitro Models to Clinical Studies
title_full_unstemmed Multidrug Resistance in Breast Cancer: From In Vitro Models to Clinical Studies
title_short Multidrug Resistance in Breast Cancer: From In Vitro Models to Clinical Studies
title_sort multidrug resistance in breast cancer from in vitro models to clinical studies
url http://dx.doi.org/10.4061/2011/967419
work_keys_str_mv AT nswind multidrugresistanceinbreastcancerfrominvitromodelstoclinicalstudies
AT iholen multidrugresistanceinbreastcancerfrominvitromodelstoclinicalstudies