Fresh peripheral blood mononuclear cells exposed to alloantigen for 3-8 d in the presence of anti-CD3 antibodies showed no response after restimulation with cells from the original donor but remained capable of responding to third-party donors. Antigen-specific nonresponsiveness was induced by both nonmitogenic and mitogenic anti-CD3 antibodies but not by antibodies against CD2, CD4, CD5, CD8, CD18, or CD28. Nonresponsiveness induced by anti-CD3 antibody in mixed leukocyte culture was sustained for at least 34 d from initiation of the culture and 26 d after removal of the antibody. Anti-CD3 antibody also induced antigen-specific nonresponsiveness in cytotoxic T cell generation assays. Anti-CD3 antibody did not induce nonresponsiveness in previously primed cells. Nonresponsiveness induced by anti-CD3 did not appear to be associated with suppressor cell activation. Thus, co-stimulation of the T cell receptor-CD3 complex on unprimed T cells with a fluid phase anti-CD3 antibody and allogenic major histocompatibility complex antigens can induce either clonal anergy or clonal deletion. These results suggest novel approaches for achieving transplantation tolerance.
Induction of specific nonresponsiveness in unprimed human T cells by anti-CD3 antibody and alloantigen.
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C Anasetti, P Tan, J A Hansen, P J Martin; Induction of specific nonresponsiveness in unprimed human T cells by anti-CD3 antibody and alloantigen.. J Exp Med 1 December 1990; 172 (6): 1691–1700. doi: https://doi.org/10.1084/jem.172.6.1691
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