title: Molecular localization of allogeneic and self determinants recognized by bulk and clonal populations of cytotoxic T cells.
abstract: The localization of MHC-encoded determinants recognized by hapten- and allo-specific cytotoxic T cells was analyzed with the use of cell lines expressing recombinant H-2Dd and H-2Ld MHC products. Bulk cultures of CTL against TNP-self, FITC-self, and AED-self recognized self determinants associated with the N/C1 domains of both Dd and Ld products. A number of allo- and hapten-specific CTL clones were also tested for recognition of the recombinant MHC products. The allo clones specific for Ld or Dd antigens recognized the respective N/C1-associated determinants. In addition, all clones generated against H-2q and known to cross-react with H-2Dd antigens recognized determinants associated with the N/C1-associated Dd determinants. Thus, some of the results obtained with CTL parallel, whereas others contrast with, those findings obtained with monoclonal anti-H-2 antibodies. Similar to the observations made with the monoclonal antibodies, no determinant as defined by T cells has been found to be lost as a result of the interaction between the N/C1 and C2/M domains of the Ld and Dd proteins. Nor did our studies detect the presence of new antigens resulting from the interaction of these gene products. However, the present T cell findings continue to contrast previous results demonstrating that antibody interaction with class I products includes recognition of C2/M-associated epitopes.
authors.forename: R B
authors.initials: RB
authors.lastname: Levy
authors.forename: K
authors.initials: K
authors.lastname: Ozato
authors.forename: J C
authors.initials: JC
authors.lastname: Richardson
authors.forename: J A
authors.initials: JA
authors.lastname: Bluestone
mesh_terms: D000818:Animals; D002874:Chromosome Mapping; D002999:Clone Cells / Q000276:immunology; D003602:Cytotoxicity, Immunologic; D000939:Epitopes / Q000235:genetics / Q000276:immunology*; D006183:H-2 Antigens / Q000235:genetics / Q000276:immunology*; D006241:Haptens / Q000276:immunology; D064532:Histocompatibility Antigen H-2D; D008213:Lymphocyte Activation; D051379:Mice; D008807:Mice, Inbred BALB C; D008809:Mice, Inbred C3H; D008810:Mice, Inbred C57BL; D014176:Protein Biosynthesis; D011995:Recombination, Genetic; D013602:T-Lymphocytes, Cytotoxic / Q000276:immunology*; D014162:Transfection
chemical_list: D000939:Epitopes; D006183:H-2 Antigens; D006241:Haptens; D064532:Histocompatibility Antigen H-2D