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microRNA-9 regulates axon extension and branching by targeting Map1b in mouse cortical neurons.
Nat. Neurosci. 15, 697-699 (2012)
The capacity of neurons to develop a long axon and multiple dendrites defines neuron connectivity in the CNS. The highly conserved microRNA-9 (miR-9) is expressed in both neuronal precursors and some post-mitotic neurons, and we detected miR-9 expression in the axons of primary cortical neurons. We found that miR-9 controlled axonal extension and branching by regulating the levels of Map1b, an important protein for microtubule stability. Following microfluidic separation of the axon and the soma, we found that miR-9 repressed Map1b translation and was a functional target for the BDNF-dependent control of axon extension and branching. We propose that miR-9 links regulatory signaling processes with dynamic translation mechanisms, controlling Map1b protein levels and axon development.
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Anmerkungen
Besondere Publikation
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Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Letter to the Editor
Sprache
englisch
Veröffentlichungsjahr
2012
HGF-Berichtsjahr
2012
ISSN (print) / ISBN
1097-6256
e-ISSN
1546-1726
Zeitschrift
Nature Neuroscience
Quellenangaben
Band: 15,
Seiten: 697-699
Verlag
Nature Publishing Group
Begutachtungsstatus
Peer reviewed
Institut(e)
Helmholtz Pioneer Campus (HPC)
DOI
10.1038/nn.3082
PubMed ID
22484572
Erfassungsdatum
2019-01-18