title: Establishment of T-cell clones recognizing difference in H-2K antigen and inducing graft-versus-host disease.
abstract: From the spleen cells of C57BL/6 (B6) mice, T-cell clones were established which responded to mutant H-2K antigen of B6. B-H-2bml (Hz1) mice. One clone and its subclones were maintained in culture medium containing lower concentration (2.5%) of IL-2 (culture supernatant of rat spleen cells stimulated with concanavalin A). They were shown to have a capability to induce graft-versus-host reaction in (B6 X Hz1)F1 recipients as well as to exert cytotoxicity against concanavalin-A-activated spleen cells of Hz1 mice and also their kidney fibroblasts. They lacked cytotoxicity against syngeneic and also third-party Con-A-stimulated spleen cells. These reactive clones were Thy-1.2 and Lyt-2 positive and Lyt-1 negative. On the other hand, clones which were maintained in culture medium containing higher concentration (20%) of IL-2 were devoid of activities in vivo as well as in vitro. These clones were Thy-1.2 positive but Lyt-1.2 and Lyt-2.2 negative.
mesh_terms: D000818:Animals; D002999:Clone Cells; D003602:Cytotoxicity, Immunologic; D005347:Fibroblasts / Q000378:metabolism / Q000648:ultrastructure; D006086:Graft vs Host Disease / Q000276:immunology*; D006183:H-2 Antigens / Q000276:immunology*; D006801:Humans; D008253:Macaca mulatta; D051379:Mice; D008807:Mice, Inbred BALB C; D008817:Mice, Mutant Strains; D008854:Microscopy, Electron; D012867:Skin / Q000276:immunology; D013154:Spleen / Q000166:cytology; D013601:T-Lymphocytes / Q000276:immunology* / Q000648:ultrastructure
chemical_list: D006183:H-2 Antigens