A slow-release fibrin matrix increases adeno-associated virus transduction of wound repair cells invivo

作者：Schmidt Christian; Bezuidenhout Deon; Zilla Peter; Davies Neil H^*

来源：Journal of Biomaterials Applications, 2014, 28(9): 1408-1418.

DOI：10.1177/0885328213510331

• biodegradable
• scaffolds
• wound healing
• fibrin
• Adeno-associated virus

Virus-mediated gene therapy is a promising strategy for numerous tissue engineering applications. Fibrin-based scaffolds have been previously used as vehicles for localised delivery of adenovirus to wound sites. However, their utility in the delivery of adeno-associated viruses to wound repair cells has not yet been determined. The influence of fibrin concentration on efficacy of delivery of AAV-2 to wound tissue was assessed in this study. Fibrin scaffolds containing recombinant AAV-2 encoding for beta-galactosidase were polymerised in porous polyurethane discs and implanted subcutaneously in rats. A fibrin scaffold with a concentration of 50 mg/ml showed significantly elevated levels of beta-galactosidase activity within explanted discs at 10 days compared to 10 mg/ml and 25 mg/ml fibrin. These findings inform efforts to optimise biodegradable scaffolds for the localised delivery of AAV in tissue engineering.

• 出版日期2014-5