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Published in: Journal of Mammary Gland Biology and Neoplasia 2/2010

01-06-2010

Epithelial Mesenchymal Transition Traits in Human Breast Cancer Cell Lines Parallel the CD44hi/CD24lo/- Stem Cell Phenotype in Human Breast Cancer

Authors: Tony Blick, Honor Hugo, Edwin Widodo, Mark Waltham, Cletus Pinto, Sendurai A. Mani, Robert A. Weinberg, Richard M. Neve, Marc E. Lenburg, Erik W. Thompson

Published in: Journal of Mammary Gland Biology and Neoplasia | Issue 2/2010

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Abstract

We review here the recently emerging relationship between epithelial-mesenchymal transition (EMT) and breast cancer stem cells (BCSC), and provide analyses of published data on human breast cancer cell lines, supporting their utility as a model for the EMT/BCSC state. Genome-wide transcriptional profiling of these cell lines has confirmed the existence of a subgroup with mesenchymal tendencies and enhanced invasive properties (‘Basal B’/Mesenchymal), distinct from subgroups with either predominantly luminal (‘Luminal’) or mixed basal/luminal (‘Basal A’) features (Neve et al. Cancer Cell, 2006). A literature-derived EMT gene signature has shown specific enrichment within the Basal B subgroup of cell lines, consistent with their over-expression of various EMT transcriptional drivers. Basal B cell lines are found to resemble BCSC, being CD44highCD24low. Moreover, gene products that distinguish Basal B from Basal A and Luminal cell lines (Basal B Discriminators) showed close concordance with those that define BCSC isolated from clinical material, as reported by Shipitsin et al. (Cancer Cell, 2007). CD24 mRNA levels varied across Basal B cell lines, correlating with other Basal B Discriminators. Many gene products correlating with CD24 status in Basal B cell lines were also differentially expressed in isolated BCSC. These findings confirm and extend the importance of the cellular product of the EMT with Basal B cell lines, and illustrate the value of analysing these cell lines for new leads that may improve breast cancer outcomes. Gene products specific to Basal B cell lines may serve as tools for the detection, quantification, and analysis of BCSC/EMT attributes.
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Metadata
Title
Epithelial Mesenchymal Transition Traits in Human Breast Cancer Cell Lines Parallel the CD44hi/CD24lo/- Stem Cell Phenotype in Human Breast Cancer
Authors
Tony Blick
Honor Hugo
Edwin Widodo
Mark Waltham
Cletus Pinto
Sendurai A. Mani
Robert A. Weinberg
Richard M. Neve
Marc E. Lenburg
Erik W. Thompson
Publication date
01-06-2010
Publisher
Springer US
Published in
Journal of Mammary Gland Biology and Neoplasia / Issue 2/2010
Print ISSN: 1083-3021
Electronic ISSN: 1573-7039
DOI
https://doi.org/10.1007/s10911-010-9175-z

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