Activation and migration of allo-peptide specific TCR transgenic T cells in cardiac allograft rejection

Autor: Judith A. Kapp, Kazuhito Honjo, R. Pat Bucy, Xiao Yan Xu
Rok vydání: 2004
Předmět:
Zdroj: Cellular Immunology. 230:44-55
ISSN: 0008-8749
DOI: 10.1016/j.cellimm.2004.09.001
Popis: T cells from TCR transgenic mice, expressing receptors specific for an allogeneic MHC class I peptide, were used to track T cell activation and migration in normal adoptive recipients that were subsequently transplanted with heterotopic hearts that were syngeneic except for a transgenic MHC class I antigen. T cells rapidly disappeared from the blood into the lymphoid tissues where they were activated within one day after transplantation. T cells initially formed discrete clusters in the spleen and lymph nodes. After proliferating for 2-4 days in lymphoid tissues, T cells reappeared in the blood and migrated to the heart and the intestines. The T cells underwent another round of proliferation in the heart, but not the intestines, and induced cardiac rejection uniformly on 6 day.
Databáze: OpenAIRE