251. Clobetasol promotes neuromuscular plasticity in mice after motoneuronal loss via sonic hedgehog signaling, immunomodulation and metabolic rebalancing
- Author
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Graziana Spoto, Michele Vecchio, Angela Maria Amorini, Michelino Di Rosa, Rosalba Parenti, Rosario Gulino, Nunzio Vicario, Grazia Scandura, Federica M. Spitale, Cirino Botta, Simona D’Aprile, G. Leanza, Massimo Gulisano, Giuseppe Lazzarino, Joshua D. Bernstock, Emanuele Buratti, Daniele Tibullo, Cristiana Alberghina, Cesarina Giallongo, Renata Mangione, Miriam Wissam Saab, Robert Zorec, Giovanni Li Volti, Vicario N., Spitale F.M., Tibullo D., Giallongo C., Amorini A.M., Scandura G., Spoto G., Saab M.W., D'Aprile S., Alberghina C., Mangione R., Bernstock J.D., Botta C., Gulisano M., Buratti E., Leanza G., Zorec R., Vecchio M., Di Rosa M., Li Volti G., Lazzarino G., Parenti R., and Gulino R.
- Subjects
Male ,Cancer Research ,Physiology ,129 Strain ,Biochemistry ,Mice ,Databases, Genetic ,Medicine ,Myocyte ,Motor Neurons ,Neuronal Plasticity ,Skeletal ,Smoothened Receptor ,Hedgehog signaling pathway ,Muscle atrophy ,Mitochondria ,Astrogliosis ,Neuroprotective Agents ,Muscle ,medicine.symptom ,Inflammation Mediators ,Signal Transduction ,Cholera Toxin ,Mice, 129 Strain ,hedgehog ,Immunology ,Motor Activity ,Neuroprotection ,Article ,Databases ,Cellular and Molecular Neuroscience ,smoothened ,Genetic ,Animals ,Humans ,Hedgehog Proteins ,Muscle, Skeletal ,Hedgehog ,Glucocorticoids ,Muscle Denervation ,QH573-671 ,Animal ,business.industry ,Amyotrophic Lateral Sclerosis ,Glial biology ,Cell Biology ,medicine.disease ,Saporins ,Spine ,Mitochondria, Muscle ,Disease Models, Animal ,clobetasol ,inflammation ,Case-Control Studies ,Disease Models ,Diseases of the nervous system ,Cytology ,Smoothened ,business ,Energy Metabolism ,Neuroscience ,Open Field Test - Abstract
Motoneuronal loss is the main feature of amyotrophic lateral sclerosis, although pathogenesis is extremely complex involving both neural and muscle cells. In order to translationally engage the sonic hedgehog pathway, which is a promising target for neural regeneration, recent studies have reported on the neuroprotective effects of clobetasol, an FDA-approved glucocorticoid, able to activate this pathway via smoothened. Herein we sought to examine functional, cellular, and metabolic effects of clobetasol in a neurotoxic mouse model of spinal motoneuronal loss. We found that clobetasol reduces muscle denervation and motor impairments in part by restoring sonic hedgehog signaling and supporting spinal plasticity. These effects were coupled with reduced pro-inflammatory microglia and reactive astrogliosis, reduced muscle atrophy, and support of mitochondrial integrity and metabolism. Our results suggest that clobetasol stimulates a series of compensatory processes and therefore represents a translational approach for intractable denervating and neurodegenerative disorders.
- Published
- 2021