title: Relationship between trinitrophenyl and H-2 antigens on trinitrophenyl-modified spleen cells. I. H-2 antigens on cells treated with trinitrobenzene sulfonic acid are derivatized.
abstract: Spleen cells were treated with TNBS in order to determine if cell surface H-2 antigens are derivatized with TNP. By labeling the cell membrane of the TNP-modified cells with 125I, followed by detergent lysis and immune precipitation with anti-TNP, it was determined that no H-2 antigenic activity remained in the supernatant. Further, by the use of an antibody-induced antigen redistribution assay it was found that previous exposure to TNP-modified cells to anti-TNP in the absence of complement rendered these cells resistant to lysis by anti-H-2 in the presence of complement. Together these data indicate that at the concentration of TNBS used for modification, H-2 antigens are derivatized with TNP. However, in addition to H-2, other proteins including immunoglobulin were also derivatized with TNP. Anti-TNP cytotoxic effector cells were blocked from their cytotoxic activity by anti-TNP antiserum. These data indicate that TNP directly couples to H-2 antigens on the cell surface of TNP-modified cells and that TNP is associated with the antigenic determinant that the cytotoxic T cell recognizes.
mesh_terms: D000818:Animals; D002462:Cell Membrane / Q000276:immunology; D003601:Cytotoxicity Tests, Immunologic; D000939:Epitopes; D006649:Histocompatibility Antigens; D051379:Mice; D009578:Nitrobenzenes / Q000276:immunology*; D013154:Spleen / Q000276:immunology; D013601:T-Lymphocytes / Q000276:immunology*; D014301:Trinitrobenzenes / Q000276:immunology*; D014302:Trinitrobenzenesulfonic Acid / Q000494:pharmacology
chemical_list: D000939:Epitopes; D006649:Histocompatibility Antigens; D009578:Nitrobenzenes; D014301:Trinitrobenzenes; D014302:Trinitrobenzenesulfonic Acid