Abstract
Malignant gliomas are the most common type of primary brain tumor. In spite of huge therapeutic efforts that include surgery, radiotherapy, and new alkylating agents, the disease progression and death is the rule. In recent years, genomic tools have provided extensive information, revealing key targets for new therapies that would shape our therapeutic strategies. This chapter summarizes the main molecular pathways with critical roles in malignant gliomas as well as new biological data that modulate our molecular, classical concepts on malignant gliomas. Furthermore, we describe gene expression profiles from human glioma samples that reveal new targets and clonal features critical for the ability of glioma cells to growth, invade, and migrate. In addition, recent studies suggest that there are malignant stem-like cells within a tumor that are responsible for tumor renewal, resistance to cytotoxic therapies, and relapse after radical treatments. In this regard, a subpopulation of stem cell-like tumor cells that diverge from side population cells have been isolated within human gliomas. Therefore, we have included an additional section focused on glioma stem-like cells and their genomic features.
To C. Belda Jr. He effectively disrupted my “signaling pathways” during the preparation of this manuscript
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Abbreviations
- pRb:
-
Retinoblastoma protein
- E2F:
-
Elongation 2 factor
- CDK4:
-
Cyclin-dependent kinase 4
- Mdm2:
-
Murine double minute 2
- ARF:
-
Alternative reading frame
- GBM:
-
Glioblastoma multiforme
- PDGFB:
-
Platelet derived-growth factor-B
- PI3K:
-
Phosphoinositide-3-kinase
- mTOR:
-
Mammalian target of rapamycin
- FGFR:
-
Fibroblast growth factor receptor
- EGFR:
-
Epidermal growth factor receptor
- PKB:
-
Protein kinase B
- PTEN:
-
Phosphatase and tensin homolog
- IGFBP-2:
-
Insulin growth factor binding protein-2
- PKC:
-
Protein kinase C
- NF-1:
-
Neurofibromin 1
- EGF:
-
Epidermal growth factor
- PAI-1:
-
Plasminogen activator inhibitor-1
- VEGF:
-
Vascular endotelial growth factor
- MAPK:
-
Mitogen-activated protein kinases
- SPR:
-
Substance P receptor
- FSTL1:
-
Follistatin-like 1
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Belda-Iniesta, C., Perona, R., Barriuso, J. (2009). Molecular Biology of Malignant Gliomas. In: Erdmann, V., Reifenberger, G., Barciszewski, J. (eds) Therapeutic Ribonucleic Acids in Brain Tumors. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-00475-9_1
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