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Neuron-specific inactivation of Wt1 alters locomotion in mice and changes interneuron composition in the spinal cord.
Life Sci. All. 1:e201800106 (2018)
Locomotion is coordinated by neuronal circuits of the spinal cord. Recently, dI6 neurons were shown to participate in the control of locomotion. A subpopulation of dI6 neurons expresses the Wilms tumor suppressor gene Wt1. However, the function of Wt1 in these cells is not understood. Here, we aimed to identify behavioral changes and cellular alterations in the spinal cord associated with Wt1 deletion. Locomotion analyses of mice with neuron-specific Wt1 deletion revealed a slower walk with a decreased stride frequency and an increased stride length. These mice showed changes in their fore-/hindlimb coordination, which were accompanied by a loss of contralateral projections in the spinal cord. Neonates with Wt1 deletion displayed an increase in uncoordinated hindlimb movements and their motor neuron output was arrhythmic with a decreased frequency. The population size of dI6, V0, and V2a neurons in the developing spinal cord of conditional Wt1 mutants was significantly altered. These results show that the development of particular dI6 neurons depends on Wt1 expression and that loss of Wt1 is associated with alterations in locomotion.
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Publication type
Article: Journal article
Document type
Scientific Article
ISSN (print) / ISBN
2575-1077
e-ISSN
2575-1077
Journal
Life Science Alliance
Quellenangaben
Volume: 1,
Issue: 4,
Article Number: e201800106
Publisher
EMBO Press
Publishing Place
Heidelberg
Non-patent literature
Publications
Reviewing status
Peer reviewed
Institute(s)
Institute of Experimental Genetics (IEG)