Exploiting the Complexities of Glioblastoma Stem Cells: Insights for Cancer Initiation and Therapeutic Targeting

The discovery of glioblastoma stem cells (GSCs) in the 2000s revolutionized the cancer research field, raising new questions regarding the putative cell(s) of origin of this tumor type, and partly explaining the highly heterogeneous nature of glioblastoma (GBM). Increasing evidence has suggested tha...

Full description

Bibliographic Details
Main Authors: Joana Vieira de Castro, Céline S. Gonçalves, Adília Hormigo, Bruno M. Costa
Format: Article
Language:English
Published: MDPI AG 2020-07-01
Series:International Journal of Molecular Sciences
Subjects:
Online Access:https://www.mdpi.com/1422-0067/21/15/5278
_version_ 1797561368968167424
author Joana Vieira de Castro
Céline S. Gonçalves
Adília Hormigo
Bruno M. Costa
author_facet Joana Vieira de Castro
Céline S. Gonçalves
Adília Hormigo
Bruno M. Costa
author_sort Joana Vieira de Castro
collection DOAJ
description The discovery of glioblastoma stem cells (GSCs) in the 2000s revolutionized the cancer research field, raising new questions regarding the putative cell(s) of origin of this tumor type, and partly explaining the highly heterogeneous nature of glioblastoma (GBM). Increasing evidence has suggested that GSCs play critical roles in tumor initiation, progression, and resistance to conventional therapies. The remarkable oncogenic features of GSCs have generated significant interest in better defining and characterizing these cells and determining novel pathways driving GBM that could constitute attractive key therapeutic targets. While exciting breakthroughs have been achieved in the field, the characterization of GSCs is a challenge and the cell of origin of GBM remains controversial. For example, the use of several cell-surface molecular markers to identify and isolate GSCs has been a challenge. It is now widely accepted that none of these markers is, per se, sufficiently robust to distinguish GSCs from normal stem cells. Finding new strategies that are able to more efficiently and specifically target these niches could also prove invaluable against this devastating and therapy-insensitive tumor. In this review paper, we summarize the most relevant findings and discuss emerging concepts and open questions in the field of GSCs, some of which are, to some extent, pertinent to other cancer stem cells.
first_indexed 2024-03-10T18:12:58Z
format Article
id doaj.art-5d2d13b238e64dba81383122a7b074c2
institution Directory Open Access Journal
issn 1661-6596
1422-0067
language English
last_indexed 2024-03-10T18:12:58Z
publishDate 2020-07-01
publisher MDPI AG
record_format Article
series International Journal of Molecular Sciences
spelling doaj.art-5d2d13b238e64dba81383122a7b074c22023-11-20T07:56:27ZengMDPI AGInternational Journal of Molecular Sciences1661-65961422-00672020-07-012115527810.3390/ijms21155278Exploiting the Complexities of Glioblastoma Stem Cells: Insights for Cancer Initiation and Therapeutic TargetingJoana Vieira de Castro0Céline S. Gonçalves1Adília Hormigo2Bruno M. Costa3Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Campus Gualtar, 4710-057 Braga, PortugalLife and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Campus Gualtar, 4710-057 Braga, PortugalDepartment of Neurology, Neurosurgery, Medicine, The Tisch Cancer Institute and Icahn School of Medicine at Mount Sinai, NY 10029-6574, USALife and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Campus Gualtar, 4710-057 Braga, PortugalThe discovery of glioblastoma stem cells (GSCs) in the 2000s revolutionized the cancer research field, raising new questions regarding the putative cell(s) of origin of this tumor type, and partly explaining the highly heterogeneous nature of glioblastoma (GBM). Increasing evidence has suggested that GSCs play critical roles in tumor initiation, progression, and resistance to conventional therapies. The remarkable oncogenic features of GSCs have generated significant interest in better defining and characterizing these cells and determining novel pathways driving GBM that could constitute attractive key therapeutic targets. While exciting breakthroughs have been achieved in the field, the characterization of GSCs is a challenge and the cell of origin of GBM remains controversial. For example, the use of several cell-surface molecular markers to identify and isolate GSCs has been a challenge. It is now widely accepted that none of these markers is, per se, sufficiently robust to distinguish GSCs from normal stem cells. Finding new strategies that are able to more efficiently and specifically target these niches could also prove invaluable against this devastating and therapy-insensitive tumor. In this review paper, we summarize the most relevant findings and discuss emerging concepts and open questions in the field of GSCs, some of which are, to some extent, pertinent to other cancer stem cells.https://www.mdpi.com/1422-0067/21/15/5278cancer heterogeneityGSCs microenvironmentmolecular pathwaysstem cell markerstherapy resistance
spellingShingle Joana Vieira de Castro
Céline S. Gonçalves
Adília Hormigo
Bruno M. Costa
Exploiting the Complexities of Glioblastoma Stem Cells: Insights for Cancer Initiation and Therapeutic Targeting
International Journal of Molecular Sciences
cancer heterogeneity
GSCs microenvironment
molecular pathways
stem cell markers
therapy resistance
title Exploiting the Complexities of Glioblastoma Stem Cells: Insights for Cancer Initiation and Therapeutic Targeting
title_full Exploiting the Complexities of Glioblastoma Stem Cells: Insights for Cancer Initiation and Therapeutic Targeting
title_fullStr Exploiting the Complexities of Glioblastoma Stem Cells: Insights for Cancer Initiation and Therapeutic Targeting
title_full_unstemmed Exploiting the Complexities of Glioblastoma Stem Cells: Insights for Cancer Initiation and Therapeutic Targeting
title_short Exploiting the Complexities of Glioblastoma Stem Cells: Insights for Cancer Initiation and Therapeutic Targeting
title_sort exploiting the complexities of glioblastoma stem cells insights for cancer initiation and therapeutic targeting
topic cancer heterogeneity
GSCs microenvironment
molecular pathways
stem cell markers
therapy resistance
url https://www.mdpi.com/1422-0067/21/15/5278
work_keys_str_mv AT joanavieiradecastro exploitingthecomplexitiesofglioblastomastemcellsinsightsforcancerinitiationandtherapeutictargeting
AT celinesgoncalves exploitingthecomplexitiesofglioblastomastemcellsinsightsforcancerinitiationandtherapeutictargeting
AT adiliahormigo exploitingthecomplexitiesofglioblastomastemcellsinsightsforcancerinitiationandtherapeutictargeting
AT brunomcosta exploitingthecomplexitiesofglioblastomastemcellsinsightsforcancerinitiationandtherapeutictargeting