Abstract
In this study migration of host and donor CD4+ and CD8+ T cells in a fully allogeneic model was described and compared with the migration pattern in a graft-versushost reaction (GVHR) model, where the T-cell traffic in the graft served as a physiological control. Heterotopic small bowel transplantations were performed in a rat model, with animals being sacrificed on postoperative days (POD) 2, 3, 4, 5, and 7. Graft and host mesenteric lymph nodes were harvested, homogenized, and stained with monoclonal antibodies against MHC class 1, CD4+, and CD8+ antigens. The host and donor T cell migration patterns were studied using a doublestaining flow cytometric technique. We found that during the development of rejection, the normal physiological circulation of graft and host T cells was disrupted. In the graft of the allogeneic model, a shift from host cell to graft cell dominance occurred on POD 3–4. This change in migration pattern coincided in the host with a 6 % peak in graft cell infiltration, which disappeared on POD 7. These patterns of T-cell migration may be further explored for diagnostic purposes.
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Kurlberg, G., Lycke, N. & Haglind, E. Migration of host and donor T cells in small bowel transplantation. Transplant Int 10, 45–50 (1996). https://doi.org/10.1007/BF02044341
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DOI: https://doi.org/10.1007/BF02044341