Breast cancers, mammary stem cells, and cancer stem cells, characteristics, and hypotheses

The cellular heterogeneity of breast cancers still represents a major therapeutic challenge. The latest genomic studies have classified breast cancers in distinct clusters to inform the therapeutic approaches and predict clinical outcomes. The mammary epithelium is composed of luminal and basal cell...

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Main Authors: Sebastien Taurin, Haifa Alkhalifa
Format: Article
Language:English
Published: Elsevier 2020-12-01
Series:Neoplasia: An International Journal for Oncology Research
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S147655862030155X
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author Sebastien Taurin
Haifa Alkhalifa
author_facet Sebastien Taurin
Haifa Alkhalifa
author_sort Sebastien Taurin
collection DOAJ
description The cellular heterogeneity of breast cancers still represents a major therapeutic challenge. The latest genomic studies have classified breast cancers in distinct clusters to inform the therapeutic approaches and predict clinical outcomes. The mammary epithelium is composed of luminal and basal cells, and this seemingly hierarchical organization is dependent on various stem cells and progenitors populating the mammary gland. Some cancer cells are conceptually similar to the stem cells as they can self-renew and generate bulk populations of nontumorigenic cells. Two models have been proposed to explain the cell of origin of breast cancer and involve either the reprogramming of differentiated mammary cells or the dysregulation of mammary stem cells or progenitors. Both hypotheses are not exclusive and imply the accumulation of independent mutational events. Cancer stem cells have been isolated from breast tumors and implicated in the development, metastasis, and recurrence of breast cancers. Recent advances in single-cell sequencing help deciphering the clonal evolution within each breast tumor. Still, few clinical trials have been focused on these specific cancer cell populations.
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spelling doaj.art-1a1cbb98f8c741a483e7e42eaa07410b2022-12-21T22:00:54ZengElsevierNeoplasia: An International Journal for Oncology Research1476-55862020-12-012212663678Breast cancers, mammary stem cells, and cancer stem cells, characteristics, and hypothesesSebastien Taurin0Haifa Alkhalifa1Department of Molecular Medicine, College of Medicine and Medical Sciences, Princess Al-Jawhara Center for Molecular Medicine and Inherited Disorders, Arabian Gulf University, Manama, Bahrain; Corresponding author.New York University Abu Dhabi, Abu Dhabi, United Arab EmiratesThe cellular heterogeneity of breast cancers still represents a major therapeutic challenge. The latest genomic studies have classified breast cancers in distinct clusters to inform the therapeutic approaches and predict clinical outcomes. The mammary epithelium is composed of luminal and basal cells, and this seemingly hierarchical organization is dependent on various stem cells and progenitors populating the mammary gland. Some cancer cells are conceptually similar to the stem cells as they can self-renew and generate bulk populations of nontumorigenic cells. Two models have been proposed to explain the cell of origin of breast cancer and involve either the reprogramming of differentiated mammary cells or the dysregulation of mammary stem cells or progenitors. Both hypotheses are not exclusive and imply the accumulation of independent mutational events. Cancer stem cells have been isolated from breast tumors and implicated in the development, metastasis, and recurrence of breast cancers. Recent advances in single-cell sequencing help deciphering the clonal evolution within each breast tumor. Still, few clinical trials have been focused on these specific cancer cell populations.http://www.sciencedirect.com/science/article/pii/S147655862030155XMammary stem cellCancer stem cellCD44CD24ALDH
spellingShingle Sebastien Taurin
Haifa Alkhalifa
Breast cancers, mammary stem cells, and cancer stem cells, characteristics, and hypotheses
Neoplasia: An International Journal for Oncology Research
Mammary stem cell
Cancer stem cell
CD44
CD24
ALDH
title Breast cancers, mammary stem cells, and cancer stem cells, characteristics, and hypotheses
title_full Breast cancers, mammary stem cells, and cancer stem cells, characteristics, and hypotheses
title_fullStr Breast cancers, mammary stem cells, and cancer stem cells, characteristics, and hypotheses
title_full_unstemmed Breast cancers, mammary stem cells, and cancer stem cells, characteristics, and hypotheses
title_short Breast cancers, mammary stem cells, and cancer stem cells, characteristics, and hypotheses
title_sort breast cancers mammary stem cells and cancer stem cells characteristics and hypotheses
topic Mammary stem cell
Cancer stem cell
CD44
CD24
ALDH
url http://www.sciencedirect.com/science/article/pii/S147655862030155X
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