The ultimate goal for skin tissue engineering is to regenerate skin lesions to allow the full restoration of morphological and\nfunctional properties as what they were before injury. To this end, we have assembled a new prototype of a biomimetic human\numbilical cord adult mesenchymal stem cell (hUCMS)/fibrin-based scaffold. We have fully characterized the proposed dermal\nequivalent (DE) in vitro, to assess morphological, functional, and biological properties of the encased cells. We transplanted DE\nsubcutaneously into immunocompetent rodents, to verify its full biocompatibility. Finally, we studied DE graft effects on fullthickness\nwounds, in immunocompetent mice to demonstrate its capability to drive the healing process in the absence of\nsignificant scarring tissue. The excellent outcome of these in vivo studies fuels hope that this new approach, based on a\nbiohybrid DE, may be applied to the operative treatment of skin lesions (i.e., diabetic foot ulcers and burns) in man.
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