Polydeoxyribonucleotides Improve Diabetic Wound Healing in Mouse Animal Model for Experimental Validation

• Published in: Annals of dermatology Vol. 31; no. 4; pp. 403 - 413
• Main Authors: Kwon, Tae-Rin, Han, Sung Won, Kim, Jong Hwan, Lee, Byung Chul, Kim, Jae Min, Hong, Ji Yeon, Kim, Beom Joon
• Format: Journal Article
• Language: English
• Published: Korea (South) The Korean Dermatological Association; The Korean Society for Investigative Dermatology 01.08.2019; 대한피부과학회
• Subjects: Original; 피부과학; CD31; Diabetes mouse model; Wound healing; Vascular endothelial growth factor A; Polyribonucleotide
• ISSN: 1013-9087; 2005-3894; 2005-3894
• DOI: 10.5021/ad.2019.31.4.403

Wound healing mechanisms is believed to have effects similar to wound healing disorders in diabetic patients, including abnormal inflammatory cells, angiogenesis disorders, and reduced collagen synthesis. Therefore, reestablishment of structural and promoted angiogenesis could be beneficial to promote wound healing process. Therefore, we investigated whether the polydeoxyribonucleotide (PDRN) that was self-production in Korea, could be useful as an intradermal injection for promoting wound healing. Also, we validate for wound healing effect of PDRN using healing-impaired (db/db) mice. In this study, we confirmed the effects of PDRN by creating wound models in and model. Using an wound healing assay, we observed that PDRN stimulated closure of wounded monolayers of human fibroblast cells. PDRN (8.25 mg/ml) or phosphate-buffered saline (0.9% NaCl) was injected once daily into the dermis adjacent to the wound for 12 days after skin injury. Time course observations revealed that mice treated with PDRN showed accelerated wound closure and epidermal and dermal regeneration, enhanced angiogenesis. The wound area and depth decreased at 3, 6, 9, and 12 days after skin injury. Histological evaluation showed an increase of vascular endothelial growth factor, CD31, and collagen fibers in the PDRN group compared with the control group, indicating that PDRN was effective in the treatment of delayed wound healing caused by diabetes. This study suggests that our PDRN has a wound healing effect in transgenic animal models with cells and diabetes through angiogenesis.