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Medical Oncology

Erschienen in:

01.01.2016 | Original Paper

MicroRNA expression profiles in pediatric dysembryoplastic neuroepithelial tumors

verfasst von: M. Braoudaki, G. I. Lambrou, S. A. Papadodima, K. Stefanaki, N. Prodromou, E. Kanavakis

Erschienen in: Medical Oncology | Ausgabe 1/2016

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Abstract

Among noncoding RNAs, microRNAs (miRNAs) have been most extensively studied, and their biology has repeatedly been proven critical for central nervous system pathological conditions. The diagnostic value of several miRNAs was appraised in pediatric dysembryoplastic neuroepithelial tumors (DNETs) using miRNA microarrays and receiving operating characteristic curves analyses. Overall, five pediatric DNETs were studied. As controls, 17 samples were used: the FirstChoice Human Brain Reference RNA and 16 samples from deceased children who underwent autopsy and were not present with any brain malignancy. The miRNA extraction was carried out using the mirVANA miRNA Isolation Kit, while the experimental approach included miRNA microarrays covering 1211 miRNAs. Quantitative real-time polymerase chain reaction was performed to validate the expression profiles of miR-1909* and miR-3138 in all samples initially screened with miRNA microarrays. Our findings indicated that miR-3138 might act as a tumor suppressor gene when down-regulated and miR-1909* as a putative oncogenic molecule when up-regulated in pediatric DNETs compared to the control cohort. Subsequently, both miRNA signatures might serve as putative diagnostic biomarkers for pediatric DNETs.

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Titel: MicroRNA expression profiles in pediatric dysembryoplastic neuroepithelial tumors
verfasst von: M. Braoudaki
G. I. Lambrou
S. A. Papadodima
K. Stefanaki
N. Prodromou
E. Kanavakis
Publikationsdatum: 01.01.2016
Verlag: Springer US
Erschienen in: Medical Oncology / Ausgabe 1/2016
Print ISSN: 1357-0560
Elektronische ISSN: 1559-131X
DOI: https://doi.org/10.1007/s12032-015-0719-3

Springer Medizin

MicroRNA expression profiles in pediatric dysembryoplastic neuroepithelial tumors

Abstract

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