Effect of miR-21 and miR-30b/c on TRAIL-induced apoptosis in glioma cells

Glioblastoma is the most frequent brain tumor in adults and is the most lethal form of human cancer. Despite the improvements in treatments, survival of patients remains poor. To define novel pathways that regulate susceptibility to tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) in...

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Veröffentlicht in:Oncogene 2013-08, Vol.32 (34), p.4001-4008
Hauptverfasser: Quintavalle, C, Donnarumma, E, Iaboni, M, Roscigno, G, Garofalo, M, Romano, G, Fiore, D, De Marinis, P, Croce, C M, Condorelli, G
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container_end_page 4008
container_issue 34
container_start_page 4001
container_title Oncogene
container_volume 32
creator Quintavalle, C
Donnarumma, E
Iaboni, M
Roscigno, G
Garofalo, M
Romano, G
Fiore, D
De Marinis, P
Croce, C M
Condorelli, G
description Glioblastoma is the most frequent brain tumor in adults and is the most lethal form of human cancer. Despite the improvements in treatments, survival of patients remains poor. To define novel pathways that regulate susceptibility to tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) in glioma, we have performed genome-wide expression profiling of microRNAs (miRs). We show that in TRAIL-resistant glioma cells, levels of different miRs are increased, and in particular, miR-30b/c and -21. We demonstrate that these miRs impair TRAIL-dependent apoptosis by inhibiting the expression of key functional proteins. T98G-sensitive cells treated with miR-21 or -30b/c become resistant to TRAIL. Furthermore, we demonstrate that miR-30b/c and miR-21 target respectively the 3′ untranslated region of caspase-3 and TAp63 mRNAs, and that those proteins mediate some of the effects of miR-30 and -21 on TRAIL resistance, even in human glioblastoma primary cells and in lung cancer cells. In conclusion, we show that high expression levels of miR-21 and -30b/c are needed to maintain the TRAIL-resistant phenotype, thus making these miRs as promising therapeutic targets for TRAIL resistance in glioma.
doi_str_mv 10.1038/onc.2012.410
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Despite the improvements in treatments, survival of patients remains poor. To define novel pathways that regulate susceptibility to tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) in glioma, we have performed genome-wide expression profiling of microRNAs (miRs). We show that in TRAIL-resistant glioma cells, levels of different miRs are increased, and in particular, miR-30b/c and -21. We demonstrate that these miRs impair TRAIL-dependent apoptosis by inhibiting the expression of key functional proteins. T98G-sensitive cells treated with miR-21 or -30b/c become resistant to TRAIL. Furthermore, we demonstrate that miR-30b/c and miR-21 target respectively the 3′ untranslated region of caspase-3 and TAp63 mRNAs, and that those proteins mediate some of the effects of miR-30 and -21 on TRAIL resistance, even in human glioblastoma primary cells and in lung cancer cells. 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subjects 3' Untranslated regions
3' Untranslated Regions - genetics
Apoptosis
Apoptosis - drug effects
Blotting, Northern
Blotting, Western
Brain cancer
Brain tumors
Care and treatment
Caspase 3 - genetics
Caspase 3 - metabolism
Caspase-3
Cell Biology
Cell Line, Tumor
Cytokines
Drug Resistance, Neoplasm - genetics
Gene expression
Gene Expression Profiling
Gene Expression Regulation, Neoplastic
Genetic aspects
Genomes
Glioblastoma
Glioblastoma multiforme
Glioma
Glioma - genetics
Glioma - metabolism
Glioma - pathology
Glioma cells
Health aspects
HEK293 Cells
Human Genetics
Humans
Internal Medicine
Lung cancer
Medicine
Medicine & Public Health
MicroRNA
MicroRNAs
MicroRNAs - genetics
MicroRNAs - metabolism
miRNA
Oligonucleotide Array Sequence Analysis
Oncology
original-article
Phenotypes
Proteins
Reverse Transcriptase Polymerase Chain Reaction
Therapeutic targets
TNF-Related Apoptosis-Inducing Ligand - pharmacology
TRAIL protein
Transcription Factors - genetics
Transcription Factors - metabolism
Tumor Cells, Cultured
Tumor Suppressor Proteins - genetics
Tumor Suppressor Proteins - metabolism
title Effect of miR-21 and miR-30b/c on TRAIL-induced apoptosis in glioma cells
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