Adult Stem Cells Seeded on Electrospinning Silk Fibroin Nanofiberous Scaffold Enhance Wound Repair and Regeneration.

Development of novel strategy stimulating the healing with skin appendages regeneration is the critical goal for wound therapy. In this study, influence of the transplantation of bone marrow derived mesenchymal stem cells (MSCs) and epidermal stem cells (ESCs) with the nanofiberous scaffold prepared from silk fibroin protein in wound re-epithelization, collagen synthesis, as well as the skin appendages regeneration were investigated. It was shown that both the transplantation of MSCs and ESCs could significantly accelerate the skin re-epithelization, stimulate the collagen synthesis. Furthermore, the regenerative features of MSCs and ESCs in activating the blood vessels and hair follicles formation, respectively were suggested. These results demonstrated that the electrospinning nanofiberous scaffold is an advantageous carrier for the cells transplantation, but also provided the experimental proofs for the application of MSCs and ESCs as promising therapeutics in skin tissue engineering.