PUBLICATION
INaP selective inhibition reverts precocious inter- and motorneurons hyperexcitability in the Sod1-G93R zebrafish ALS model
- Authors
- Benedetti, L., Ghilardi, A., Rottoli, E., De Maglie, M., Prosperi, L., Perego, C., Baruscotti, M., Bucchi, A., Del Giacco, L., Francolini, M.
- ID
- ZDB-PUB-160417-10
- Date
- 2016
- Source
- Scientific Reports 6: 24515 (Journal)
- Registered Authors
- Del Giacco, Luca, Ghilardi, Anna, Prosperi, Laura
- Keywords
- Amyotrophic lateral sclerosis, Cellular neuroscience
- MeSH Terms
-
- Action Potentials/drug effects*
- Action Potentials/genetics*
- Amyotrophic Lateral Sclerosis/diagnosis
- Amyotrophic Lateral Sclerosis/genetics*
- Animals
- Animals, Genetically Modified
- Disease Models, Animal
- Gene Expression
- Locomotion
- Motor Activity/drug effects
- Motor Neurons/drug effects*
- Motor Neurons/physiology*
- Muscles/pathology
- Mutation
- Neuromuscular Junction/metabolism
- Phenotype
- Phenylglyoxal/analogs & derivatives*
- Phenylglyoxal/pharmacology
- Riluzole/pharmacology
- Spinal Cord/pathology
- Superoxide Dismutase/genetics*
- Zebrafish
- PubMed
- 27079797 Full text @ Sci. Rep.
Citation
Benedetti, L., Ghilardi, A., Rottoli, E., De Maglie, M., Prosperi, L., Perego, C., Baruscotti, M., Bucchi, A., Del Giacco, L., Francolini, M. (2016) INaP selective inhibition reverts precocious inter- and motorneurons hyperexcitability in the Sod1-G93R zebrafish ALS model. Scientific Reports. 6:24515.
Abstract
The pathogenic role of SOD1 mutations in amyotrophic lateral sclerosis (ALS) was investigated using a zebrafish disease model stably expressing the ALS-linked G93R mutation. In addition to the main pathological features of ALS shown by adult fish, we found remarkably precocious alterations in the development of motor nerve circuitry and embryo behavior, and suggest that these alterations are prompted by interneuron and motor neuron hyperexcitability triggered by anomalies in the persistent pacemaker sodium current INaP. The riluzole-induced modulation of INaP reduced spinal neuron excitability, reverted the behavioral phenotypes and improved the deficits in motor nerve circuitry development, thus shedding new light on the use of riluzole in the management of ALS. Our findings provide a valid phenotype-based tool for unbiased in vivo drug screening that can be used to develop new therapies.
Genes / Markers
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Orthology
Engineered Foreign Genes
Mapping