Combination Growth Factor Therapy via Electrostatically Assembled Wound Dressings Improves Diabetic Ulcer Healing In Vivo
Abstract
Chronic skin ulcerations are a common complication of diabetes mellitus, affecting up to one in four diabetic individuals. Despite the prevalence of these wounds, current pharmacologic options for treating them remain limited. Growth factor–based therapies have displayed a mixed ability to drive successful healing, which may be due to nonoptimal delivery strategies. Here, a method for coating commercially available nylon dressings using the layer‐by‐layer process is described to enable both sustained release and independent control over the release kinetics of vascular endothelial growth factor 165 and platelet‐derived growth factor BB. It is shown that the use of strategically spaced diffusion barriers formed spontaneously by disulfide bonds enables independent control over the release rates of incorporated growth factors, and that in vivo these dressings improve several aspects of wound healing in db/db mice.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Aug 13, 2015
- Source ID
- 10.1002/adhm.201500403
Entities
People
- Alice Y. Lu
- Benjamin D. Almquist
- Julia B. Sun
- Paula T. Hammond
- Steven A. Castleberry
Organizations
- Army Research Office
- Imperial College London
- Massachusetts Institute of Technology
- National Institutes of Health