Perlecan and vascular endothelial growth factor-encoding DNA-loaded chitosan scaffolds promote angiogenesis and wound healing

JOURNAL OF CONTROLLED RELEASE

卷:250

Article

Lord, Megan S.¹  Ellis, April L.²  Farrugia, Brooke L.¹  Whitelock, John M.¹  Grenett, Hernan²  Li, Chuanyu²  O'Grady, Robert L.¹  DeCarlo, Arthur A.² 

[1] Univ New South Wales, Grad Sch Biomed Engn, Sydney, NSW 2052, Australia

[2] Agenta Biotechnol Inc, POB 430021, Cahaba Heights, AL 35243 USA

关键词: Perlecan;    Proteoglycan;    Vascular endothelial growth factor;    Chitosan;    Wound healing;    Skin tissue engineering;   

DOI  :  10.1016/j.jconrel.2017.02.009

来源: Elsevier

【 摘 要 】

The repair of dermal wounds, particularly in the diabetic population, poses a significant healthcare burden. The impaired wound healing of diabetic wounds is attributed to low levels of endogenous growth factors, including vascular endothelial growth factor (VEGF), that normally stimulate multiple phases of wound healing. In this study, chitosan scaffolds were prepared via freeze drying and loaded with plasmid DNA encoding perlecan domain I and VEGF189 and analyzed in vivo for their ability to promote dermal wound healing. The plasmid DNA encoding perlecan domain I and VEGF189 loaded scaffolds promoted dermal wound healing in normal and diabetic rats. This treatment resulted in an increase in the number of blood vessels and sub-epithelial connective tissue matrix components within the wound beds compared to wounds treated with chitosan scaffolds containing control DNA orwounded controls. These results suggest that chitosan scaffolds containing plasmidDNA encoding VEGF189 and perlecan domain I have the potential to induce angiogenesis and wound healing. (C) 2017 Elsevier B.V. All rights reserved.

【 授权许可】

Free