Journal
EXPERT OPINION ON BIOLOGICAL THERAPY
Volume 4, Issue 6, Pages 783-800Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1517/14712598.4.6.783
Keywords
gene therapy; genetic disease; genomics; stem cells; systemic disorders; tissue engineering; transcriptional profiling; wound healing
Funding
- NIBIB NIH HHS [R01 EB000876-01] Funding Source: Medline
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The skin is an attractive target for gene therapy because it is easily accessible and shows great potential as an ectopic site for protein delivery in vivo. Genetically modified epidermal cells can be used to engineer three-dimensional skin substitutes, which when transplanted can act as in vivo 'bioreactors' for delivery of therapeutic proteins locally or systemically. Although some gene transfer technologies have the potential to afford permanent genetic modification, differentiation and eventual loss of genetically modified cells from the epidermis results in temporary transgene expression. Therefore, to achieve stable long-term gene expression, it is critical to deliver genes to epidermal stem cells, which possess unlimited growth potential and self-renewal capacity. This review discusses the recent advances in epidermal stem cell isolation, gene transfer and engineering of skin substitutes. Recent efforts that employ gene therapy and tissue engineering for the treatment of genetic diseases, chronic wounds and systemic disorders, such as leptin deficiency or diabetes, are reviewed. Finally, the use of gene-modified tissue-engineered skin as a biological model for understanding tissue development, wound healing and epithelial carcinogenesis is also discussed.
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