First Author | Bordet T | Year | 2001 |
Journal | Hum Mol Genet | Volume | 10 |
Issue | 18 | Pages | 1925-33 |
PubMed ID | 11555629 | Mgi Jnum | J:71820 |
Mgi Id | MGI:2150848 | Doi | 10.1093/hmg/10.18.1925 |
Citation | Bordet T, et al. (2001) Protective effects of cardiotrophin-1 adenoviral gene transfer on neuromuscular degeneration in transgenic ALS mice. Hum Mol Genet 10(18):1925-33 |
abstractText | Amyotrophic lateral sclerosis (ALS) is mainly a sporadic neurodegenerative disorder characterized by loss of cortical and spinal motoneurons. Some familial ALS cases (FALS) have been linked to dominant mutations in the gene encoding Cu/Zn superoxide dismutase (SOD1). Transgenic mice overexpressing a mutated form of human SOD1 with a Gly93Ala substitution develop progressive muscle wasting and paralysis as a result of spinal motoneuron loss and die at 5 to 6 months. We investigated the effects of neurotrophic factor gene delivery in this FALS model. Intramuscular injection of an adenoviral vector encoding cardiotrophin-1 (CT-1) in SOD1G93A newborn mice resulted in systemic delivery of CT-1, supplying motoneurons with a continuous source of trophic factor. CT-1 delayed the onset of motor impairment as assessed in the rotarod test. Axonal degeneration was slowed and skeletal muscle atrophy was largely reduced by CT-1 treatment. By monitoring the amplitude of the evoked motor response, we showed that the time-course of motor impairment was significantly decreased by CT-1 treatment. Thus, adenovirus-mediated gene transfer of neurotrophic factors might delay neurogenic muscular atrophy and progressive neuromuscular deficiency in ALS patients. |