Protocols for Full Thickness Skin Wound Repair Using Prevascularized Human Mesenchymal Stem Cell Sheet

Area of Science:

• Regenerative Medicine
• Tissue Engineering
• Wound Healing

Background:

• Split thickness skin grafts (STSGs) are used for large wounds but face limitations due to poor early blood supply.
• Insufficient vascularization hinders the healing and regeneration of STSG transplants.

Purpose of the Study:

• To develop a protocol for creating prevascularized human mesenchymal stem cell (hMSC) sheets.
• To evaluate the efficacy of these sheets in accelerating full thickness skin wound repair in a rat model.

Main Methods:

• Co-culturing hMSCs with endothelial cells to form prevascularized hMSC sheets (PHCS).
• Implanting PHCS in a rat autologous skin graft model for full thickness wound repair.
• Assessing wound healing effects post-implantation.

Main Results:

• The study provides a detailed protocol for PHCS generation.
• The implantation and evaluation protocol in a rat model are described.
• The potential of PHCS to overcome vascularization limitations in wound healing is highlighted.

Conclusions:

• Prevascularized hMSC sheets offer a potential solution to enhance blood supply in skin wound healing.
• This approach may improve regeneration for large wounds and reduce reliance on traditional grafting methods.