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Open Access Green as soon as Postprint is submitted to ZB.
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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Publication type
Article: Journal article
Document type
Letter to the Editor
ISSN (print) / ISBN
1097-6256
e-ISSN
1546-1726
Journal
Nature Neuroscience
Quellenangaben
Volume: 15,
Pages: 697-699
Publisher
Nature Publishing Group
Non-patent literature
Publications
Reviewing status
Peer reviewed
Institute(s)
Helmholtz Pioneer Campus (HPC)