TLDR Artificial skin grafts face immune rejection, but stem cells may improve future designs.
The document reviewed the immunological challenges of artificial skin grafts, focusing on immune acceptance and long-term survival. It highlighted the limitations of autografts and the issues of rejection faced by allogeneic or xenogeneic grafts due to immune responses. The role of T lymphocytes and the importance of matching MHC molecules were emphasized in reducing rejection rates. Various strategies, including stem cell-based therapies, bio-engineered skin equivalents, and chemical agents, were explored to improve graft survival and induce tolerance. Despite advancements, no solution completely overcame immunological rejection, and existing engineered skin alternatives did not provide a permanent solution. The potential of stem cells, particularly MSCs and iPSCs, was noted for developing immune-compatible artificial skin, though further research was needed to address immune response challenges.
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