title: In vivo and in vitro induction of cytotoxic lymphocytes by alloantigen-reactive lymphocytes fractionated on spleen cell monolayers.
abstract: The generation of cytotoxic T cells by normal and primed lymphocytes fractionated on spleen cell monolayers was examined by two methods. In the first method, sublethally irradiated recipients were inoculated with the fractionated cells, and 5 to 6 days later the spleens were tested for cytotoxicity against 51Cr tumor target cells syngeneic to the host. Significant reduction of cytotoxic activity was observed in one-half of the experiments. In the second method, the fractionated cells were cultured with mitomycin C-treated stimulated cells and tested 6 days later for cytotoxicity. A slight reduction of cytotoxic activity was observed. In both methods, the cytotoxic response generated by the fractionated alloantigen-primed lymphocytes was similar to the response obtained with unprimed cells.
mesh_terms: D000818:Animals; D002458:Cell Fractionation; D003602:Cytotoxicity, Immunologic; D006086:Graft vs Host Disease; D007519:Isoantigens; D008297:Male; D051379:Mice; D008937:Mitomycins / Q000494:pharmacology; D011828:Radiation Chimera; D013154:Spleen / Q000166:cytology; D013601:T-Lymphocytes / Q000187:drug effects / Q000276:immunology* / Q000528:radiation effects
chemical_list: D007519:Isoantigens; D008937:Mitomycins