We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Improved Diabetic Wound Healing by EGF Encapsulation in Gelatin-Alginate Coacervates.
- Authors
Jeong, Seonghee; Kim, ByungWook; Park, Minwoo; Ban, Eunmi; Lee, Soo-Hyeon; Kim, Aeri
- Abstract
Topical imageplication of epidermal growth fctor (EGF) has been used to accelerate diabetic foot ulcers but with limited efficacy. In this study, we selected a complex coacervate (EGF-Coa) composed of the low molecular weight gelatin type A and sodium alginate as a novel delivery system for EGF, based on encapsulation efficiency and protection of EGF from protease. EGF-Coa enhanced in vitro migration of keratinocytes and accelerated wound healing in streptozotocin-induced diabetic mice with increased granulation and re-epithelialization. While diabetic wound sites without treatment showed downward growth of hyperproliferative epidermis along the wound edges with poor matrix formation, EGF-Coa treatment recovered horizontal migration of epidermis over the newly deposited dermal matrix. EGF-Coa treatment also resulted in reduced levels of proinflammatory cytokines IL-1, IL-6, and THF-α. Freeze-dried coacervates packaged in aluminum pouches were stable for up to 4 months at 4 and 25 °C in terms of appearance, purity by RP-HPLC, and in vitro release profiles. There were significant physical and chemical changes in relative humidity above 33% or at 37 °C, suggesting the requirement for moisture-proof packaging and cold chain storage for long term stability. We propose low molecular weight gelatin type A and sodium alginate (LWGA-SA) coacervates as a novel EGF delivery system with enhanced efficacy for chronic wounds.
- Subjects
WOUND healing; DIABETIC foot; MOLECULAR weights; GELATIN; CHRONIC wounds &; injuries; SODIUM alginate
- Publication
Pharmaceutics, 2020, Vol 12, Issue 4, p334
- ISSN
1999-4923
- Publication type
Article
- DOI
10.3390/pharmaceutics12040334