Journal
NEUROSCIENCE LETTERS
Volume 465, Issue 2, Pages 194-198Publisher
ELSEVIER IRELAND LTD
DOI: 10.1016/j.neulet.2009.09.014
Keywords
Chronic nerve compression (CNC); Transcription factors; Krox-20; c-Jun; Beta 4 integrin; Schmidt-Lanterman Incisures
Categories
Funding
- NIH/NINDS [NS02221, NS049203]
Ask authors/readers for more resources
Limited work has been done to investigate the molecular mechanisms behind the process of demyelination and remyelination that occurs in response to chronic nerve compression (CNC) injury. In the present study, we investigated the expression of the transcription factors krox-20 and c-jun, positive and negative regulators of myelination, respectively. A decrease in krox-20 expression and an increase in c-jun expression in both its phosphorylated and non-phosphorylated states were observed. In addition, we investigated the role of integrins, specifically the beta 4 subunit of the alpha 6 beta 4 dimer. as a possible upstream signal transducer in the signaling cascade leading to demyelination. We detected a decrease in beta 4 integrin expression at 2 and 4 weeks post-injury and a concomitant relocalization to the Schmidt-Lanterman Incisures, suggesting a role for the beta 4 integrin in facilitating Schwann cell-extracellular matrix interaction. The observed changes in transcription factor and integrin expression are temporally correlated with the process of demyelination, and suggest further investigation to define their definitive role in regulating the myelin response to CNC injury. (c) 2009 Elsevier Ireland Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available