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J Cell Biol. 2008 May 19;181(4):575-7. doi: 10.1083/jcb.200804136.

Switching myelination on and off.

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1
Department of Cell Biology and Neurology, Smilow Neuroscience Program, New York University School of Medicine, New York, NY 10016, USA. Salzer@Saturn.med.nyu.edu

Abstract

Schwann cells are remarkably plastic cells that can both form and stably maintain myelin sheaths around axons and also rapidly dedifferentiate upon injury. New findings (Parkinson, D.B., A. Bhaskaran, P. Arthur-Farraj, L.A. Noon, A. Woodhoo, A.C. Lloyd, M.L. Feltri, L. Wrabetz, A. Behrens, R. Mirsky, and K.R. Jessen. 2008. J. Cell Biol. 181:625-637) indicate that the transition between these distinct states of differentiation is directed by the transcription factor Krox-20, which promotes and maintains myelination, and c-Jun, which antagonizes it. Cross-inhibition of these transcription factors serves to switch Schwann cells between the myelinated and dedifferentiated phenotypes, respectively.

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PMID:
18490509
PMCID:
PMC2386097
DOI:
10.1083/jcb.200804136
[Indexed for MEDLINE]
Free PMC Article
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