Genetic control of cytolytic T lymphocyte responses. III. The role of K and I region alleles on the specificity of the cytolytic T lymphocyte response to trinitrophenyl-modified syngeneic cells.
It has previously been demonstrated that genes in the H-2K and/or I-A region control the specificity of the cytolytic T lymphocyte (CTL) response to trinitrophenyl-(TNP) modified syngeneic cells. Strains of mice bearing the k allele in the K and/or IA region do not exhibit cross-reactive lysis of TNP-modified allogeneic targets after stimulation with TNP-modified syngeneic targets. In this report we present evidence for independent roles of genes in the H-2K and I-A regions on the control of CTL specificity. One gene, mapping in the H-2K region, is expressed on the stimulator cell population, whereas the other gene maps to the I region and is expressed in the population of responding cells and need not be expressed in the stimulator cell population. Thus, we suggest that Ir genes localized to the I region may influence the response for prekiller cells to H-2K/D gene products.
D000483:Alleles; D000818:Animals; D003429:Cross Reactions; D003602:Cytotoxicity, Immunologic; D005260:Female; D006183:H-2 Antigens; D000949:Histocompatibility Antigens Class II; D006720:Homozygote; D006822:Hybrid Cells / Q000276:immunology; D008297:Male; D051379:Mice; D008805:Mice, Inbred A / Q000235:genetics*; D008810:Mice, Inbred C57BL / Q000235:genetics*; D013601:T-Lymphocytes / Q000276:immunology*; D014301:Trinitrobenzenes / Q000276:immunology
D006183:H-2 Antigens; D000949:Histocompatibility Antigens Class II; D014301:Trinitrobenzenes