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Standing Up To Paraplegia With Gene Therapy

Date:
December 18, 2005
Source:
Journal of Clinical Investigation
Summary:
Elena Rugarli and colleagues from the National Neurological Institute in Milan have used gene therapy to save sensory and skeletal muscle nerve fibers from degeneration in mice with hereditary spastic paraplegia (HSP). This strategy, reported online on December 15 in advance of print publication in the January 2006 issue of the Journal of Clinical Investigation, holds promise for many other disorders characterized by nerve degeneration due to loss of function of a known gene.

Elena Rugarli and colleagues from the National Neurological Institute in Milan have used gene therapy to save sensory and skeletal muscle nerve fibers from degeneration in mice with hereditary spastic paraplegia (HSP). This strategy, reported online on December 15 in advance of print publication in the January 2006 issue of the Journal of Clinical Investigation, holds promise for many other disorders characterized by nerve degeneration due to loss of function of a known gene.

Hereditary spastic paraplegia (HSP), a neurodegenerative disorder caused by progressive loss of sensory and skeletal muscle nerve fibers (axons), is characterized by weakness, spasticity, and impaired function of the lower limbs. The disorder is often due to mutations in the gene encoding the paraplegin protein. HSP sufferers are ultimately confined to a wheelchair, and currently there is no cure for the disease. In the current study, Rugarli and colleagues have shown that a one-time delivery of normal paraplegin by a viral vector to the spinal motor neurons of mice with HSP, before the onset of symptoms, was able to save axons from degeneration for up to 10 months.

Delivery of this mitochondrial energy-dependent protease improved motor function in the mice and these data show that delivery of an intracellular protein to spinal motor neurons by gene transfer may be useful not only for the treatment of HSP patients but also for those individuals with other forms of peripheral nerve damage of known genetic origin.

###

TITLE: Intramuscular viral delivery of paraplegin rescues peripheral axonopathy in a model of hereditary spastic paraplegia

View the PDF of this article at: https://www.the-jci.org/article.php?id=26210


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The above story is based on materials provided by Journal of Clinical Investigation. Note: Materials may be edited for content and length.


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Journal of Clinical Investigation. "Standing Up To Paraplegia With Gene Therapy." ScienceDaily. ScienceDaily, 18 December 2005. <www.sciencedaily.com/releases/2005/12/051218112835.htm>.
Journal of Clinical Investigation. (2005, December 18). Standing Up To Paraplegia With Gene Therapy. ScienceDaily. Retrieved July 26, 2014 from www.sciencedaily.com/releases/2005/12/051218112835.htm
Journal of Clinical Investigation. "Standing Up To Paraplegia With Gene Therapy." ScienceDaily. www.sciencedaily.com/releases/2005/12/051218112835.htm (accessed July 26, 2014).

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