title: Comparative immunogenicity and enhanceability of individual H-2K and H-2D specificities of the murine histocompatibility-2 complex.
abstract: The immunogenicity of single, private H-2 specificities has been tested. In most cases, the specificity was known to be confined either to H-2K or to H-2D. This was accomplished by the appropriate choice, as donor and recipient, or parent of the F(1) hybrid recipient, of congenic strains differing at H-2 only, and of recombinant haplotypes in donor and/or recipient. By nearly all tests, the H-2K antigen appeared to be a stronger immunogen than the H-2D antigen. Skin grafts with an H-2K difference showed median survival times (MST) of 9.3-14.5 days; for H-2D the values were 13.8-18.6. The difference was also present, though narrowed, for second-set grafts. H-2K grafts regularly engendered a demonstrable cytotoxic antibody response; with H-2D differences the response was absent or very weak. K end cytotoxic titers after multiple immunizations with lymphoid tissues ranged from 1/32 to 1/2,048, D end titers from 0 to 1/128. Hemagglutination titers showed no clear difference. The results of passive enhancement of skin grafts with H-2 alloantibody produced in donor recipient combinations, identical to those used for the skin grafts showed a different pattern. H-2K, despite its greater immunogenic strength was more easily enhanced than H-2D. Prolongation of MST's for H-2K was 2.4-6.7 days, for H-2D grafts, 0.2-1.5 days.
mesh_terms: D000818:Animals; D000917:Antibody Formation; D003434:Crossing Over, Genetic; D003601:Cytotoxicity Tests, Immunologic; D000939:Epitopes; D005260:Female; D006084:Graft Rejection; D006386:Hemagglutination Tests; D006648:Histocompatibility; D006649:Histocompatibility Antigens; D007106:Immune Sera; D007116:Immunization, Passive; D007274:Injections, Intraperitoneal; D007518:Isoantibodies / Q000008:administration & dosage; D008297:Male; D051379:Mice; D008815:Mice, Inbred Strains; D016038:Skin Transplantation; D014181:Transplantation Immunology; D014184:Transplantation, Homologous
chemical_list: D000939:Epitopes; D006649:Histocompatibility Antigens; D007106:Immune Sera; D007518:Isoantibodies