Related Experiment Video
Updated: Aug 8, 2025
Measurement of T Cell Alloreactivity Using Imaging Flow Cytometry
Published on: April 19, 2017
Immunohistochemical Analysis of Lymphocyte Populations in Acute Skin Rejection: The University Health Network
Siba Haykal1,2,3, Natasha Barone3, Sara Rostami1
1Latner Thoracic Surgery Research Laboratories, Toronto General Hospital Research Institute, Department of Surgery, University Health Network, University of Toronto, Toronto, ON, Canada.
Abstract:
Acute rejection in vascularized composite allotransplantation has been identified using the Banff 2007 working classification. We propose an addition to this classification based on histological and immunological assessment within the skin and subcutaneous tissue.
Methods:
Biopsies from vascularized composite transplant patients were obtained at scheduled visits and whenever skin changes occurred. Histology and immunohistochemistry were performed on all samples, looking at infiltrating cells.
Results:
Observations were made specifically related to each component of the skin, including the epidermis, dermis, vessels, and subcutaneous tissue. Our findings led to the establishment of the University Health Network addition of skin rejection.
Conclusions:
The high rate of rejection where the skin is involved requires novel techniques for early detection. The University Health Network skin rejection addition can serve as an adjunct to the Banff classification.
