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MicroRNAs in the Molecular Pathology of Gliomas

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Glioma Cell Biology
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Abstract

MicroRNAs (miRNAs) are endogenously expressed small noncoding RNAs that act as posttranscriptional regulators of gene expression. Dysregulation of these molecules has been observed in many types of cancers. Altered expression levels of several miRNAs were identified also in gliomas. It was been frequently shown that miRNAs are involved in core signaling pathways, which play key roles in cellular processes, such as proliferation, apoptosis, cell cycle regulation, invasion, angiogenesis, and stem cell behavior. Therefore, miRNAs have a great potential to act as new class of diagnostic, prognostic, and predictive biomarkers as well as promising therapeutic targets in gliomas. Here, we summarize the current knowledge about miRNAs significance in glioma molecular pathology, with special focus on their involvement in core signaling pathways, their roles in drug resistance, and their potential clinical implications.

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Abbreviations

BMI1:

BMI1 polycomb ring finger oncogene

Cdk:

Cyclin-dependent kinase

c-MYC:

v-myc avian myelocytomatosis viral oncogene homolog

EGFR:

Epidermal growth factor receptor

GBM:

Glioblastoma multiforme

GSC:

Glioma stem cell

IFN:

Interferon

IKKα/β/γ:

Conserved helix-loop-helix ubiquitous kinase α/β/γ

IRS:

Insulin receptor substrate

JAK-STAT:

Janus kinase-signal transducer and activator of transcription

miRNA:

MicroRNA

MMP:

Matrix metalloproteinase

NF-κB:

Nuclear factor of kappa light polypeptide gene enhancer in B-cells

p21CIP1:

Cyclin-dependent kinase inhibitor 1A

p27:

p27 protein

PDGFR:

Platelet-derived growth factor receptor

PI3K/AKT:

Phosphatidylinositol-4,5-bisphosphate 3-kinase/v-akt murine thymoma viral oncogene homolog)

PLD2:

Phospholipase D2

PTEN:

Phosphatase and tensin homolog

RAS:

Rat sarcoma viral oncogene homolog

TMZ:

Temozolomide

VEGF:

Vascular endothelial cell growth factor

VEGFR:

VEGF receptor

WHO:

World Health Organization

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Acknowledgment

This work was supported by grants of Internal Grant Agency of the Czech Ministry of Health no. NT13514-4/2012 and NT11214-4/2010; project “CEITEC—Central European Institute of Technology” (CZ.1.05/1.1.00/02.0068).

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Sana, J., Besse, A., Slaby, O. (2014). MicroRNAs in the Molecular Pathology of Gliomas. In: Sedo, A., Mentlein, R. (eds) Glioma Cell Biology. Springer, Vienna. https://doi.org/10.1007/978-3-7091-1431-5_4

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