Comparison of hybrid clones derived from human breast epithelial cells and three different cancer cell lines regarding in vitro cancer stem/ initiating cell properties

Abstract Background Several physiological (fertilization, placentation, wound healing) and pathophysiological processes (infection with enveloped viruses, cancer) depend on cell fusion. In cancer it was postulated that the fusion of cancer cells with normal cells such as macrophages or stem cells ma...

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Main Authors: Sera Selina Fahlbusch, Silvia Keil, Jörg T. Epplen, Kurt S. Zänker, Thomas Dittmar
Format: Article
Language:English
Published: BMC 2020-05-01
Series:BMC Cancer
Subjects:
Online Access:http://link.springer.com/article/10.1186/s12885-020-06952-9
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author Sera Selina Fahlbusch
Silvia Keil
Jörg T. Epplen
Kurt S. Zänker
Thomas Dittmar
author_facet Sera Selina Fahlbusch
Silvia Keil
Jörg T. Epplen
Kurt S. Zänker
Thomas Dittmar
author_sort Sera Selina Fahlbusch
collection DOAJ
description Abstract Background Several physiological (fertilization, placentation, wound healing) and pathophysiological processes (infection with enveloped viruses, cancer) depend on cell fusion. In cancer it was postulated that the fusion of cancer cells with normal cells such as macrophages or stem cells may not only give rise to hybrid cells exhibiting novel properties, such as an increased metastatic capacity and drug resistance, but possibly also cancer stem/ initiating cell properties. Hence, hybrid clone cells (M13HS, M13MDA435 and M13MDA231) that were derived from spontaneous fusion events of human M13SV1-EGFP-Neo breast epithelial cells and HS578T-Hyg, MDA-MB-435-Hyg and MDA-MB-231-Hyg cancer cells were investigated regarding potential in vitro cancer stem/ initiating cell properties. Methods CD44/CD24 expression pattern and ALDH1 activity of parental cells and hybrid clones was determined by flow cytometry. A colony formation and mammosphere formation assay was applied to determine the cells’ capability to form colonies and mammospheres. Sox9, Slug and Snail expression levels were determined by Western blot analysis. Results Flow cytometry revealed that all hybrid clone cells were CD44+/CD24−/low, but differed markedly among each other regarding ALDH1 activity. Likewise, each hybrid clone possessed a unique colony formation and mammosphere capacity as well as unique Snail, Slug and Sox9 expression patterns. Nonetheless, comparison of hybrid clones revealed that M13HS hybrids exhibited more in vitro cancer stem/ initiating cell properties than M13MDA231 and M13MDA435 hybrids, such as more ALDH1 positive cells or an increased capacity to form colonies and mammospheres. Conclusion The fate whether cancer stem/ initiating cells may originate from cell fusion events likely depends on the specific characteristics of the parental cells.
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spelling doaj.art-3e7294d8b0a54b1792d7f871629f0f0e2022-12-21T19:53:58ZengBMCBMC Cancer1471-24072020-05-0120111310.1186/s12885-020-06952-9Comparison of hybrid clones derived from human breast epithelial cells and three different cancer cell lines regarding in vitro cancer stem/ initiating cell propertiesSera Selina Fahlbusch0Silvia Keil1Jörg T. Epplen2Kurt S. Zänker3Thomas Dittmar4Institute of Immunology, Center for Biomedical Education and Research (ZBAF), Witten/Herdecke UniversityInstitute of Immunology, Center for Biomedical Education and Research (ZBAF), Witten/Herdecke UniversityCenter for Biomedical Education and Research (ZBAF), Witten/Herdecke UniversityInstitute of Immunology, Center for Biomedical Education and Research (ZBAF), Witten/Herdecke UniversityInstitute of Immunology, Center for Biomedical Education and Research (ZBAF), Witten/Herdecke UniversityAbstract Background Several physiological (fertilization, placentation, wound healing) and pathophysiological processes (infection with enveloped viruses, cancer) depend on cell fusion. In cancer it was postulated that the fusion of cancer cells with normal cells such as macrophages or stem cells may not only give rise to hybrid cells exhibiting novel properties, such as an increased metastatic capacity and drug resistance, but possibly also cancer stem/ initiating cell properties. Hence, hybrid clone cells (M13HS, M13MDA435 and M13MDA231) that were derived from spontaneous fusion events of human M13SV1-EGFP-Neo breast epithelial cells and HS578T-Hyg, MDA-MB-435-Hyg and MDA-MB-231-Hyg cancer cells were investigated regarding potential in vitro cancer stem/ initiating cell properties. Methods CD44/CD24 expression pattern and ALDH1 activity of parental cells and hybrid clones was determined by flow cytometry. A colony formation and mammosphere formation assay was applied to determine the cells’ capability to form colonies and mammospheres. Sox9, Slug and Snail expression levels were determined by Western blot analysis. Results Flow cytometry revealed that all hybrid clone cells were CD44+/CD24−/low, but differed markedly among each other regarding ALDH1 activity. Likewise, each hybrid clone possessed a unique colony formation and mammosphere capacity as well as unique Snail, Slug and Sox9 expression patterns. Nonetheless, comparison of hybrid clones revealed that M13HS hybrids exhibited more in vitro cancer stem/ initiating cell properties than M13MDA231 and M13MDA435 hybrids, such as more ALDH1 positive cells or an increased capacity to form colonies and mammospheres. Conclusion The fate whether cancer stem/ initiating cells may originate from cell fusion events likely depends on the specific characteristics of the parental cells.http://link.springer.com/article/10.1186/s12885-020-06952-9Cell fusionCancer stem cellsBreast cancer
spellingShingle Sera Selina Fahlbusch
Silvia Keil
Jörg T. Epplen
Kurt S. Zänker
Thomas Dittmar
Comparison of hybrid clones derived from human breast epithelial cells and three different cancer cell lines regarding in vitro cancer stem/ initiating cell properties
BMC Cancer
Cell fusion
Cancer stem cells
Breast cancer
title Comparison of hybrid clones derived from human breast epithelial cells and three different cancer cell lines regarding in vitro cancer stem/ initiating cell properties
title_full Comparison of hybrid clones derived from human breast epithelial cells and three different cancer cell lines regarding in vitro cancer stem/ initiating cell properties
title_fullStr Comparison of hybrid clones derived from human breast epithelial cells and three different cancer cell lines regarding in vitro cancer stem/ initiating cell properties
title_full_unstemmed Comparison of hybrid clones derived from human breast epithelial cells and three different cancer cell lines regarding in vitro cancer stem/ initiating cell properties
title_short Comparison of hybrid clones derived from human breast epithelial cells and three different cancer cell lines regarding in vitro cancer stem/ initiating cell properties
title_sort comparison of hybrid clones derived from human breast epithelial cells and three different cancer cell lines regarding in vitro cancer stem initiating cell properties
topic Cell fusion
Cancer stem cells
Breast cancer
url http://link.springer.com/article/10.1186/s12885-020-06952-9
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