Logo image
The absence of myelin P0 protein produces a novel molecular phenotype in Schwann cells
Journal article   Peer reviewed

The absence of myelin P0 protein produces a novel molecular phenotype in Schwann cells

Daniela maria Menichella, Wenbo Xu, Huiyuan Jiang, Jasloveleen Sohi, Jean‐Michael Vallat, Pierluigi Baron, John Kamholz and Michael Shy
Annals of the New York Academy of Sciences, Vol.883, pp.281-293
09/14/1999
DOI: 10.1111/j.1749-6632.1999.tb08590.x
PMID: 10586253

View Online

Abstract

In order to better understand the pathogenesis of demyelination in P0 knockout (P0-/-) mice, we analyzed the myelin gene expression and the localization of myelin proteins in P0 null mouse sciatic nerve. We have demonstrated that the severe demyelinating neuropathy of P0-knockout mouse is associated with changes in the program of myelin gene expression. Some changes in myelin gene expression occur early, others occur during adulthood. We also provide evidence that the absence of P0 is associated with changes in the localization of specific paranodal proteins in the peripheral nerve. These data suggest that P0 plays an important role, either directly or indirectly, in the program of Schwann cell gene expression and in the specific distribution of peripheral myelin proteins. Furthermore, myelin gene dysregulation and improper localization of paranodal proteins may account, in part, for the pathogenesis of demyelination in P0-knockout mice, as well as in human demyelinating peripheral neuropathy associated with mutations in the P0 gene.
Phenotype beta Catenin Cytoskeletal Proteins - genetics Sciatic Nerve - pathology Humans Myelin P0 Protein - deficiency Trans-Activators Schwann Cells - pathology Sciatic Nerve - physiopathology Myelin P0 Protein - physiology Charcot-Marie-Tooth Disease - genetics Mice, Knockout Animals Myelin P0 Protein - genetics Schwann Cells - physiology Mice Cadherins - genetics

Details

Metrics

Logo image