RRC ID 12131
Author Wright MA, Mo W, Nicolson T, Ribera AB.
Title In vivo evidence for transdifferentiation of peripheral neurons.
Journal Development
Abstract It is commonly thought that differentiated neurons do not give rise to new cells, severely limiting the potential for regeneration and repair of the mature nervous system. However, we have identified cells in zebrafish larvae that first differentiate into dorsal root ganglia sensory neurons but later acquire a sympathetic neuron phenotype. These transdifferentiating neurons are present in wild-type zebrafish. However, they are increased in number in larvae that have a mutant voltage-gated sodium channel gene, scn8aa. Sodium channel knock-down promotes migration of differentiated sensory neurons away from the ganglia. Once in a new environment, sensory neurons transdifferentiate regardless of sodium channel expression. These findings reveal an unsuspected plasticity in differentiated neurons that points to new strategies for treatment of nervous system disease.
Volume 137(18)
Pages 3047-56
Published 2010-9-1
DOI 10.1242/dev.052696
PII dev.052696
PMID 20685733
PMC PMC2926955
MeSH Animals Animals, Genetically Modified Cell Differentiation* Cell Movement Cell Transdifferentiation Ganglia, Spinal / cytology Ganglia, Spinal / embryology Ganglia, Spinal / metabolism Gene Expression Regulation, Developmental Mutation NAV1.6 Voltage-Gated Sodium Channel Neurons / cytology* Neurons / metabolism Sodium Channels / deficiency Sodium Channels / metabolism* Tyrosine 3-Monooxygenase / metabolism Zebrafish / growth & development* Zebrafish / metabolism Zebrafish Proteins / deficiency Zebrafish Proteins / metabolism*
IF 5.611
Times Cited 15
WOS Category DEVELOPMENTAL BIOLOGY
Resource
Zebrafish rw0130a(Tg (Huc:Kaede))