title: Cell-cell interaction responsible for the induction of first order suppressor T cells in hapten-specific contact sensitivity reactions.
abstract: C3H/He mice were found to be low responders in the contact sensitivity response to ABA. Intravenous injection of ABA-coupled syngeneic spleen cells induced hapten-specific Ts in C3H/He mice. These cells were Ts1 because they acted on the inductive phase of the contact sensitivity. They could suppress the contact sensitivity in H-2-compatible CBA mice which were known to be high responders to ABA. Using in vivo and in vitro systems for the induction of Ts, it was shown that I-A-I-J+Thy-1- adherent cells were necessary as APC for the induction of Ts1.
mesh_terms: D000818:Animals; D002450:Cell Communication; D003520:Cyclophosphamide / Q000494:pharmacology; D003877:Dermatitis, Contact / Q000276:immunology; D000939:Epitopes; D006241:Haptens / Q000276:immunology*; D006649:Histocompatibility Antigens / Q000276:immunology; D000949:Histocompatibility Antigens Class II; D008213:Lymphocyte Activation / Q000187:drug effects; D051379:Mice; D008809:Mice, Inbred C3H; D008808:Mice, Inbred CBA; D050378:T-Lymphocytes, Regulatory / Q000276:immunology*; D010132:p-Azobenzenearsonate / Q000494:pharmacology
chemical_list: D000939:Epitopes; D006241:Haptens; D006649:Histocompatibility Antigens; D000949:Histocompatibility Antigens Class II; C043911:I-J-antigen; D010132:p-Azobenzenearsonate; D003520:Cyclophosphamide