Innovative Wound Dressing Coated with Drug-Loaded Adipose Mesenchymal Stem Cells to Promote Wound Healing in Diabetes

Abstract

Impaired wound healing is associated with hyperglycaemia in patients with diabetes. Hyperglycaemia induces protein glycation and the formation of Advanced Glycation End-Products (AGEs). The accumulation of AGEs in the body results in the structural and functional modification of tissue proteins. This study was conducted to evaluate compounds with antiglycation activities (S-Ally1 Cysteine (SAC), N-Acetylcysteine (NAC) and the mimic compound A). The extent of glycation in the presence and absence of several inhibitors was assessed via several methods including fluorescence, Sodium Dodecyl Sulphate-Polyacrylamide Gel Electrophoresis (SDS-PAGE)- silver stain, Western blotting, and Enzyme-Linked Immunosorbent Assays (ELISA). Additionally, this research aimed to evaluate and quantify the potential of Human Adipose Mesenchymal Stem Cells (hADMSCs) to uptake and release these drugs as potential therapeutics. To achieve this, hADMSCs were primed with a combination of SAC/NAC and mimic compound A and their concentrations were analysed using High-Performance Liquid Chromatography (HPLC). The SAC/NAC and mimic compound A prohibit the formation of AGEs while the Conditioned Medium (CM) from SAC/NACand compound A-loaded hADMSCs induced cell migration and tube formation in BAECs. hADMSCs provide a unique opportunity for the development of an innovative targeting and drug-delivery system which could effectively deliver therapeutics to specific regions of wounds or other damaged tissues. The data provided demonstrate the potential of hADMSCs as a drug delivery method with the potential to improve wound healing, and it may offer potential therapeutic targeting for the development of diabetic complications.