Journal
JOURNAL OF BIOMATERIALS APPLICATIONS
Volume 28, Issue 9, Pages 1408-1418Publisher
SAGE PUBLICATIONS LTD
DOI: 10.1177/0885328213510331
Keywords
biodegradable; scaffolds; wound healing; fibrin; Adeno-associated virus
Funding
- South African Medical Research Council [IUCHRU]
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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.
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