Expert Reviews in Molecular Medicine: http://www.expertreviews.org/
DOI: 10.1017/S1462399407000270; 19 March 2007
James R. Goss (2007) The therapeutic potential of gene transfer for the treatment of peripheral neuropathies. Expert Rev. Mol. Med. Vol. 9, Issue 8, DOI: 10.1017/S1462399407000270

The therapeutic potential of gene transfer for the treatment of peripheral neuropathies

James R. Goss ^a1

^a1 Molecular Genetics and Biochemistry, Center for Biotechnology and Bioengineering, University of Pittsburgh, 300 Technology Drive, Rm 208, Pittsburgh, PA 15219, USA. Tel: +1 412 383 9558; Fax: +1 412 383 9760; E-mail: jrgoss@pitt.edu

Peripheral neuropathy is a common medical problem with numerous aetiologies. Unfortunately, for the majority of cases there is no available medical solution for the underlying cause, and the only option is to try to treat the resulting symptoms. Treatment options exist when neuropathy results in positive symptoms such as pain, but there is a significant lack of treatments for negative symptoms such as numbness and weakness. Systemic application of growth factor peptides has shown promise in protecting nerves from neuropathic insults in preclinical animal studies, but translation into human trials has been problematic and disappointing. Significant advancements have been made in the past few years in utilising gene therapy approaches to treat peripheral neuropathy by expressing neuroprotective gene products either systemically or in specific nervous tissues. For example, plasmids expressing vascular endothelial growth factor injected into muscle, or herpes-simplex-virus-based vectors expressing neurotrophin gene products delivered to dorsal root ganglion neurons, have been used to protect peripheral nerve function in animal models of diabetes-associated peripheral neuropathy. Many published studies support the feasibility of this approach, although several questions still need to be addressed as gene therapy to treat peripheral neuropathy moves out of the laboratory and into the clinic.

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