Suppression of the cytotoxic T cell response to minor alloantigens in vivo. Linked recognition by suppressor T cells.
This report describes the activity of transferable suppressor T cells (Ts) generated in vivo in response to minor alloantigens. These Ts cells are antigen specific in both primary and secondary in vivo cytotoxic T lymphocyte responses to minor alloantigens and are the result of a host response rather than of a graft-vs.-host reaction. The Ts cells are produced soon after immunization and their activity is transient. They act via "linked recognition", since they can suppress the cytotoxic T lymphocyte response to noncross-reactive minor antigens, but only if these are presented on the same antigenic cell. A model for dominant low responsiveness in (high X low responder)F1 animals is proposed, whereby Ts cells, activated via the low responder allele, work by linked recognition to suppress helper cells activated via the high responder allele.
D000818:Animals; D003429:Cross Reactions; D003602:Cytotoxicity, Immunologic; D000939:Epitopes / Q000235:genetics / Q000276:immunology; D008040:Genetic Linkage; D007519:Isoantigens / Q000008:administration & dosage* / Q000235:genetics / Q000276:immunology; D007700:Kinetics; D051379:Mice; D008809:Mice, Inbred C3H; D008808:Mice, Inbred CBA; D008912:Minor Histocompatibility Loci; D013602:T-Lymphocytes, Cytotoxic / Q000276:immunology*; D050378:T-Lymphocytes, Regulatory / Q000276:immunology*
D000939:Epitopes; D007519:Isoantigens