Wound healing of human skin transplanted onto the nude mouse: I. An immunohistological study of the reepithelialization process
1987
Abstract Two months after transplantation of human skin onto the nude mouse, excisional wounds were made through the entire thickness of the skin, at the center of the graft, using a 2-mm punch. At various time intervals thereafter, ranging from 2 days to 9 weeks, the graft sites were harvested and processed for an immunohistological study. With a monoclonal antibody directed against HLA-ABC antigens, it was demonstrated that the healing epidermis is of human origin. Moreover, with three different monoclonal antibodies directed against human keratins, named respectively AE 1 , AE 3 , and KL 1 and with an anti-involucrin antiserum, it is reported that the keratinization and involucrin distribution patterns observed in normal human epidermis (1) are reconstituted, 2 months after transplantation, in the major part of the grafted epidermis, (2) undergo changes during the reepithelialization process, and (3) are restored in the healed epidermis 9 weeks after injury. This study indicates that the nude mouse/human skin model could be a valuable tool to study a major aspect of regeneration such as the reepidermization of human skin without recourse to human volunteers.
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