Pathology of a mouse mutation in peripheral myelin protein P0 is characteristic of a severe and early onset form of human Charcot-Marie-Tooth type 1B disorder
Copyright policy )Pathology of a mouse mutation in peripheral myelin protein P0 is characteristic of a severe and early onset form of human Charcot-Marie-Tooth type 1B disorder
Mutations in the gene of the peripheral myelin protein zero (P0) give rise to the peripheral neuropathies Charcot-Marie-Tooth type 1B disease (CMT1B), Déjérine-Sottas syndrome, and congenital hypomyelinating neuropathy. To investigate the pathomechanisms of a specific point mutation in the P0 gene, we generated two independent transgenic mouse lines expressing the pathogenic CMT1B missense mutation Ile106Leu (P0sub) under the control of the P0 promoter on a wild-type background. Both P0sub-transgenic mouse lines showed shivering and ultrastructural abnormalities including retarded myelination, onion bulb formation, and dysmyelination seen as aberrantly folded myelin sheaths and tomacula in all nerve fibers. Functionally, the mutation leads to dispersed compound muscle action potentials and severely reduced conduction velocities. Our observations support the view that the Ile106Leu mutation acts by a dominant-negative gain of function and that the P0sub-transgenic mouse represents an animal model for a severe, tomaculous form of CMT1B.
- Universität Hamburg Germany
- University of Würzburg Germany
Movement Disorders, Mutation, Missense, Neural Conduction, Action Potentials, Mice, Transgenic, Article, Disease Models, Animal, Mice, Microscopy, Electron, Amino Acid Substitution, Gene Expression Regulation, Charcot-Marie-Tooth Disease, Animals, Humans, Amino Acid Sequence, Peripheral Nerves, RNA, Messenger, Promoter Regions, Genetic, Myelin P0 Protein, Myelin Sheath, Genes, Dominant
Movement Disorders, Mutation, Missense, Neural Conduction, Action Potentials, Mice, Transgenic, Article, Disease Models, Animal, Mice, Microscopy, Electron, Amino Acid Substitution, Gene Expression Regulation, Charcot-Marie-Tooth Disease, Animals, Humans, Amino Acid Sequence, Peripheral Nerves, RNA, Messenger, Promoter Regions, Genetic, Myelin P0 Protein, Myelin Sheath, Genes, Dominant
citations This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).34 popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.Top 10% influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).Top 10% impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.Top 10%
Citations provided by BIP!Popularity provided by BIP!