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

Published version
Peer-reviewed

Type

Article

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Authors

Besharat, Zein Mersini  ORCID logo  https://orcid.org/0000-0003-0317-9854
Abballe, Luana 
Cicconardi, Francesco 
Bhutkar, Arjun 
Grassi, Luigi 

Abstract

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.

Description

Keywords

Animals, Animals, Newborn, Cell Differentiation, Cell Proliferation, Cerebellum, Forkhead Box Protein M1, Gene Expression Regulation, Developmental, Hedgehog Proteins, High-Throughput Nucleotide Sequencing, Mice, Mice, Inbred C57BL, MicroRNAs, Nanog Homeobox Protein, Neural Stem Cells, Neurogenesis, Primary Cell Culture, Signal Transduction, Spheroids, Cellular, Zinc Finger Protein GLI1

Journal Title

Sci Rep

Conference Name

Journal ISSN

2045-2322
2045-2322

Volume Title

8

Publisher

Springer Science and Business Media LLC