A role for neuregulin1 signaling in muscle spindle differentiation
JournalArticle (Originalarbeit in einer wissenschaftlichen Zeitschrift)
ID 156104
Author(s) Hippenmeyer, Simon; Shneider, Neil A; Birchmeier, Carmen; Burden, Steven J; Jessell, Thomas M; Arber, Silvia
Author(s) at UniBasel Arber, Silvia
Year 2002
Title A role for neuregulin1 signaling in muscle spindle differentiation
Journal Neuron
Volume 36
Number 6
Pages / Article-Number 1035-49
Keywords Animals; Cell Differentiation/*genetics; DNA-Binding Proteins/genetics/metabolism; Early Growth Response Protein 3; Female; Fetus; Ganglia; Spinal/cytology/embryology/metabolism; Gene Expression Regulation; Developmental/genetics; Male; Mice; Knockout; Motor Neurons/cytology/metabolism; Muscle Spindles/cytology/*embryology/metabolism; Muscle; Skeletal/cytology/*embryology/*innervation; Mutation/genetics; Neuregulin-1/*deficiency/genetics; Neurons; Afferent/cytology/*metabolism; Proprioception/genetics; Protein Isoforms/genetics/metabolism; Signal Transduction/genetics; Transcription Factors/genetics/metabolism
Abstract The maturation of synaptic structures depends on inductive interactions between axons and their prospective targets. One example of such an interaction is the influence of proprioceptive sensory axons on the differentiation of muscle spindles. We have monitored the expression of three transcription factors, Egr3, Pea3, and Erm, that delineate early muscle spindle development in an assay of muscle spindle-inducing signals. We provide genetic evidence that Neuregulin1 (Nrg1) is required for proprioceptive afferent-evoked induction of muscle spindle differentiation in the mouse. Ig-Nrg1 isoforms are preferentially expressed by proprioceptive sensory neurons and are sufficient to induce muscle spindle differentiation in vivo, whereas CRD-Nrg1 isoforms are broadly expressed in sensory and motor neurons but are not required for muscle spindle induction.
Publisher Cell Press
ISSN/ISBN 0896-6273
edoc-URL http://edoc.unibas.ch/dok/A5259091
Full Text on edoc No
Digital Object Identifier DOI 10.1016/S0896-6273(02)01101-7
PubMed ID http://www.ncbi.nlm.nih.gov/pubmed/12495620
ISI-Number WOS:000180011600008
Document type (ISI) Journal Article

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