Distribution of monocarboxylate transporters in the peripheral nervous system suggests putative roles in lactate shuttling and myelination.

Détails

Ressource 1Télécharger: 4151.full.pdf (1508.60 [Ko])
Etat: Serval
Version: Final published version
ID Serval
serval:BIB_C03C96C7FAC4
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Distribution of monocarboxylate transporters in the peripheral nervous system suggests putative roles in lactate shuttling and myelination.
Périodique
Journal of Neuroscience
Auteur(s)
Domènech-Estévez E., Baloui H., Repond C., Rosafio K., Médard J.J., Tricaud N., Pellerin L., Chrast R.
ISSN
1529-2401 (Electronic)
ISSN-L
0270-6474
Statut éditorial
Publié
Date de publication
2015
Peer-reviewed
Oui
Volume
35
Numéro
10
Pages
4151-4156
Langue
anglais
Notes
Publication types: Journal Article ; Research Support, Non-U.S. Gov'tPublication Status: ppublish
Résumé
Lactate, a product of glycolysis, has been shown to play a key role in the metabolic support of neurons/axons in the CNS by both astrocytes and oligodendrocytes through monocarboxylate transporters (MCTs). Despite such importance in the CNS, little is known about MCT expression and lactate function in the PNS. Here we show that mouse MCT1, MCT2, and MCT4 are expressed in the PNS. While DRG neurons express MCT1, myelinating Schwann cells (SCs) coexpress MCT1 and MCT4 in a domain-specific fashion, mainly in regions of noncompact myelin. Interestingly, SC-specific downregulation of MCT1 expression in rat neuron/SC cocultures led to increased myelination, while its downregulation in neurons resulted in a decreased amount of neurofilament. Finally, pure rat SCs grown in the presence of lactate exhibited an increase in the level of expression of the main myelin regulator gene Krox20/Egr2 and the myelin gene P0. These data indicate that lactate homeostasis participates in the regulation of the SC myelination program and reveal that similar to CNS, PNS axon-glial metabolic interactions are most likely mediated by MCTs.
Mots-clé
lactate, monocarboxylate transporters, peripheral nervous system, Schwann cells
Pubmed
Web of science
Open Access
Oui
Création de la notice
17/03/2015 15:16
Dernière modification de la notice
09/05/2019 0:42
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