EGFR Amplification and Glioblastoma Stem-Like Cells

Glioblastoma (GBM), the most common malignant brain tumor in adults, contains a subpopulation of cells with a stem-like phenotype (GS-cells). GS-cells can be maintained in vitro using serum-free medium supplemented with epidermal growth factor, basic fibroblast growth factor-2, and heparin. However,...

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Main Authors: Katrin Liffers, Katrin Lamszus, Alexander Schulte
Format: Article
Language:English
Published: Wiley 2015-01-01
Series:Stem Cells International
Online Access:http://dx.doi.org/10.1155/2015/427518
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author Katrin Liffers
Katrin Lamszus
Alexander Schulte
author_facet Katrin Liffers
Katrin Lamszus
Alexander Schulte
author_sort Katrin Liffers
collection DOAJ
description Glioblastoma (GBM), the most common malignant brain tumor in adults, contains a subpopulation of cells with a stem-like phenotype (GS-cells). GS-cells can be maintained in vitro using serum-free medium supplemented with epidermal growth factor, basic fibroblast growth factor-2, and heparin. However, this method does not conserve amplification of the Epidermal Growth Factor Receptor (EGFR) gene, which is present in over 50% of all newly diagnosed GBM cases. GS-cells with retained EGFR amplification could overcome the limitations of current in vitro model systems and contribute significantly to preclinical research on EGFR-targeted therapy. This review recapitulates recent methodological approaches to expand stem-like cells from GBM with different EGFR status in order to maintain EGFR-dependent intratumoral heterogeneity in vitro. Further, it will summarize the current knowledge about the impact of EGFR amplification and overexpression on the stem-like phenotype of GBM-derived GS-cells and different approaches to target the EGFR-dependent GS-cell compartment of GBM.
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spelling doaj-art-2cafcf71d9e14ba7b4a6e180ee98dc612025-02-03T01:23:52ZengWileyStem Cells International1687-966X1687-96782015-01-01201510.1155/2015/427518427518EGFR Amplification and Glioblastoma Stem-Like CellsKatrin Liffers0Katrin Lamszus1Alexander Schulte2Laboratory for Brain Tumor Biology, Department of Neurosurgery, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, GermanyLaboratory for Brain Tumor Biology, Department of Neurosurgery, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, GermanyLaboratory for Brain Tumor Biology, Department of Neurosurgery, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, GermanyGlioblastoma (GBM), the most common malignant brain tumor in adults, contains a subpopulation of cells with a stem-like phenotype (GS-cells). GS-cells can be maintained in vitro using serum-free medium supplemented with epidermal growth factor, basic fibroblast growth factor-2, and heparin. However, this method does not conserve amplification of the Epidermal Growth Factor Receptor (EGFR) gene, which is present in over 50% of all newly diagnosed GBM cases. GS-cells with retained EGFR amplification could overcome the limitations of current in vitro model systems and contribute significantly to preclinical research on EGFR-targeted therapy. This review recapitulates recent methodological approaches to expand stem-like cells from GBM with different EGFR status in order to maintain EGFR-dependent intratumoral heterogeneity in vitro. Further, it will summarize the current knowledge about the impact of EGFR amplification and overexpression on the stem-like phenotype of GBM-derived GS-cells and different approaches to target the EGFR-dependent GS-cell compartment of GBM.http://dx.doi.org/10.1155/2015/427518
spellingShingle Katrin Liffers
Katrin Lamszus
Alexander Schulte
EGFR Amplification and Glioblastoma Stem-Like Cells
Stem Cells International
title EGFR Amplification and Glioblastoma Stem-Like Cells
title_full EGFR Amplification and Glioblastoma Stem-Like Cells
title_fullStr EGFR Amplification and Glioblastoma Stem-Like Cells
title_full_unstemmed EGFR Amplification and Glioblastoma Stem-Like Cells
title_short EGFR Amplification and Glioblastoma Stem-Like Cells
title_sort egfr amplification and glioblastoma stem like cells
url http://dx.doi.org/10.1155/2015/427518
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