Glioma Stemlike Cells Enhance the Killing of Glioma Differentiated Cells by Cytotoxic Lymphocytes.

Glioblastoma multiforme, the most aggressive primary brain tumor, is maintained by a subpopulation of glioma cells with self-renewal properties that are able to recapitulate the entire tumor even after surgical resection or chemo-radiotherapy. This typifies the vast heterogeneity of this tumor with...

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Main Authors: Esen Yonca Bassoy, Valentina Chiusolo, Guillaume Jacquemin, Cristina Riccadonna, Paul R Walker, Denis Martinvalet
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2016-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC4830556?pdf=render
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author Esen Yonca Bassoy
Valentina Chiusolo
Guillaume Jacquemin
Cristina Riccadonna
Paul R Walker
Denis Martinvalet
author_facet Esen Yonca Bassoy
Valentina Chiusolo
Guillaume Jacquemin
Cristina Riccadonna
Paul R Walker
Denis Martinvalet
author_sort Esen Yonca Bassoy
collection DOAJ
description Glioblastoma multiforme, the most aggressive primary brain tumor, is maintained by a subpopulation of glioma cells with self-renewal properties that are able to recapitulate the entire tumor even after surgical resection or chemo-radiotherapy. This typifies the vast heterogeneity of this tumor with the two extremes represented on one end by the glioma stemlike cells (GSC) and on the other by the glioma differentiated cells (GDC). Interestingly, GSC are more sensitive to immune effector cells than the GDC counterpart. However, how GSC impact on the killing on the GDC and vice versa is not clear. Using a newly developed cytotoxicity assay allowing to simultaneously monitor cytotoxic lymphocytes-mediated killing of GSC and GDC, we found that although GSC were always better killed and that their presence enhanced the killing of GDC. In contrast, an excess of GDC had a mild protective effect on the killing of GSC, depending on the CTL type. Overall, our results suggest that during combination therapy, immunotherapy would be the most effective after prior treatment with conventional therapies.
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spelling doaj.art-70abdc4b15f14d27b4dcf1794206d0ce2022-12-22T02:51:40ZengPublic Library of Science (PLoS)PLoS ONE1932-62032016-01-01114e015343310.1371/journal.pone.0153433Glioma Stemlike Cells Enhance the Killing of Glioma Differentiated Cells by Cytotoxic Lymphocytes.Esen Yonca BassoyValentina ChiusoloGuillaume JacqueminCristina RiccadonnaPaul R WalkerDenis MartinvaletGlioblastoma multiforme, the most aggressive primary brain tumor, is maintained by a subpopulation of glioma cells with self-renewal properties that are able to recapitulate the entire tumor even after surgical resection or chemo-radiotherapy. This typifies the vast heterogeneity of this tumor with the two extremes represented on one end by the glioma stemlike cells (GSC) and on the other by the glioma differentiated cells (GDC). Interestingly, GSC are more sensitive to immune effector cells than the GDC counterpart. However, how GSC impact on the killing on the GDC and vice versa is not clear. Using a newly developed cytotoxicity assay allowing to simultaneously monitor cytotoxic lymphocytes-mediated killing of GSC and GDC, we found that although GSC were always better killed and that their presence enhanced the killing of GDC. In contrast, an excess of GDC had a mild protective effect on the killing of GSC, depending on the CTL type. Overall, our results suggest that during combination therapy, immunotherapy would be the most effective after prior treatment with conventional therapies.http://europepmc.org/articles/PMC4830556?pdf=render
spellingShingle Esen Yonca Bassoy
Valentina Chiusolo
Guillaume Jacquemin
Cristina Riccadonna
Paul R Walker
Denis Martinvalet
Glioma Stemlike Cells Enhance the Killing of Glioma Differentiated Cells by Cytotoxic Lymphocytes.
PLoS ONE
title Glioma Stemlike Cells Enhance the Killing of Glioma Differentiated Cells by Cytotoxic Lymphocytes.
title_full Glioma Stemlike Cells Enhance the Killing of Glioma Differentiated Cells by Cytotoxic Lymphocytes.
title_fullStr Glioma Stemlike Cells Enhance the Killing of Glioma Differentiated Cells by Cytotoxic Lymphocytes.
title_full_unstemmed Glioma Stemlike Cells Enhance the Killing of Glioma Differentiated Cells by Cytotoxic Lymphocytes.
title_short Glioma Stemlike Cells Enhance the Killing of Glioma Differentiated Cells by Cytotoxic Lymphocytes.
title_sort glioma stemlike cells enhance the killing of glioma differentiated cells by cytotoxic lymphocytes
url http://europepmc.org/articles/PMC4830556?pdf=render
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