Foxm1 controls a pro-stemness microRNA network in neural stem cells

Cerebellar neural stem cells (NSCs) require Hedgehog-Gli (Hh-Gli) signalling for their maintenance and Nanog expression for their self-renewal. To identify novel molecular features of this regulatory pathway, we used next-generation sequencing technology to profile mRNA and microRNA expression in ce...

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Detalles Bibliográficos
Autores principales: Besharat, Zein Mersini, Abballe, Luana, Cicconardi, Francesco, Bhutkar, Arjun, Grassi, Luigi, Le Pera, Loredana, Moretti, Marta, Chinappi, Mauro, D’Andrea, Daniel, Mastronuzzi, Angela, Ianari, Alessandra, Vacca, Alessandra, De Smaele, Enrico, Locatelli, Franco, Po, Agnese, Miele, Evelina, Ferretti, Elisabetta
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2018
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5824884/
https://www.ncbi.nlm.nih.gov/pubmed/29476172
http://dx.doi.org/10.1038/s41598-018-21876-y
Descripción
Sumario:Cerebellar neural stem cells (NSCs) require Hedgehog-Gli (Hh-Gli) signalling for their maintenance and Nanog expression for their self-renewal. To identify novel molecular features of this regulatory pathway, we used next-generation sequencing technology to profile mRNA and microRNA expression in cerebellar NSCs, before and after induced differentiation (Diff-NSCs). Genes with higher transcript levels in NSCs (vs. Diff-NSCs) included Foxm1, which proved to be directly regulated by Gli and Nanog. Foxm1 in turn regulated several microRNAs that were overexpressed in NSCs: miR-130b, miR-301a, and members of the miR-15~16 and miR-17~92 clusters and whose knockdown significantly impaired the neurosphere formation ability. Our results reveal a novel Hh-Gli-Nanog-driven Foxm1-microRNA network that controls the self-renewal capacity of NSCs.

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