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The induction of T-cell responses involves the recognition of extrinsic antigen in association with antigens of the major histocompatibility complex (MHC), in mice and man, with different T cells recognizing antigen in association with either class I (H-2K/D, HLA-A, B, C) or class II (Ia, HLA-D/DR) MHC antigens. However, the requirement of MHC recognition in the induction of immunological tolerance remains ill defined. With human T helper clones recognizing synthetic peptides of influenza haemagglutinin (HA-1), we have investigated the nature of antigen-induced stimulation, and antigen-induced antigen-specific unresponsiveness, immunological tolerance. Tolerance is not due to cell death, as the cells remain responsive to interleukin-2 and is associated with the loss of T3 antigen from the cell surface. Using monoclonal antibodies to the non-polymorphic regions of human class II antigens to inhibit the induction of T-cell tolerance we report here that induction of tolerance requires the recognition of MHC antigens.

Original publication

DOI

10.1038/308072a0

Type

Journal article

Journal

Nature

Publication Date

01/03/1984

Volume

308

Pages

72 - 74

Keywords

Animals, Cells, Cultured, Clone Cells, Epitopes, HLA Antigens, Humans, Immune Tolerance, Lymphocyte Activation, Major Histocompatibility Complex, Mice, T-Lymphocytes, T-Lymphocytes, Helper-Inducer