Trans-regulation of oligodendrocyte myelination by neurons through small GTPase Arf6-regulated secretion of fibroblast growth factor-2.
Nat Commun
; 5: 4744, 2014 Aug 21.
Article
em En
| MEDLINE
| ID: mdl-25144208
ABSTRACT
The small G protein ADP-ribosylation factor 6 (Arf6) plays important roles in a wide variety of membrane dynamics-based cellular events such as neurite outgrowth and spine formation in vitro. However, little is known about physiological function of Arf6 in vivo. Here we generate conditional knockout mice lacking Arf6 in neurons, oligodendrocytes, or both cell lineages, and unexpectedly find that Arf6 expression in neurons, but not in oligodendrocytes, is crucial for oligodendrocyte myelination in the hippocampal fimbria and the corpus callosum during development, and that this is through the regulation of secretion of fibroblast growth factor-2, a guidance factor for migration of oligodendrocyte precursor cells (OPCs). These results suggest that Arf6 in neurons plays an important role in OPC migration through regulation of FGF-2 secretion during neuronal development.
Texto completo:
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Base de dados:
MEDLINE
Assunto principal:
Oligodendroglia
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Fator 2 de Crescimento de Fibroblastos
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Fatores de Ribosilação do ADP
Idioma:
En
Ano de publicação:
2014
Tipo de documento:
Article