Mol Ther. 2000 Sep;2(3):188-94.

Adeno-associated virus expresses transgenes in hair follicles and epidermis.

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Department of Dermatology, University of Essen, Hufelandstrasse 55, 45122 Essen, Germany. ulrich.hengge@uni-essen.de

Abstract

Adeno-associated virus (AAV) vectors are nonpathogenic, integrating DNA vectors capable of transducing dividing and nondividing cells with the potential of long-term expression. Evaluating this interesting vector system in the skin for the first time, we found that an AAV vector containing the lacZ gene (AAVlacZ) led to the expression of beta-galactosidase for more than 6 weeks following in vivo injection. Interestingly, expression was present not only in dividing and postmitotic epidermal keratinocytes but also in hair follicle epithelial cells and eccrine sweat glands. However, expression upon readministration was limited. Functional studies in swine using human erythropoietin were hampered by immunogenicity. Thus, AAV seems to be the only vector to date that efficiently targets hair follicle epithelial cells. It may also be useful when longer term expression in keratinocytes than that achievable by direct injection of plasmid DNA is desired.

PMID:: 10985948; [PubMed - indexed for MEDLINE]

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