title: Predominant utilization of V beta 8+ T cell receptor genes in the H-2Ld-restricted cytotoxic T cell response against the immediate-early protein pp89 of the murine cytomegalovirus.
abstract: Cytotoxic T cell responses to the murine Cytomegalovirus (MCMV) were elicited in BALB/c mice (H-2d) by infectious virus. Eight days after infection, MCMV-primed local lymph node T cells were either depleted for T cells expressing a V beta 8+ TCR or separated into V beta 8+ and V beta 8- subpopulations by a cell sorter using the mAb F23.1. T cells were then expanded in vitro under limiting dilution conditions in the presence of IL-2 and in the absence of viral Ag to avoid selection by Ag in vitro. Frequencies of CTL precursors specific for the Immediate-Early-Ag 1 of MCMV and restricted to H-2Ld were determined. L cells of the endogenous haplotype H-2k cotransfected with the genes for MCMV-IE 1 and H-2Ld were used as target cells. Detection of a CTL response required previous priming of the animals by infection in vivo (less than 1/10(6) for nonimmunized animals). In primed animals CTL precursors of this specificity and restriction were three to fivefold more frequent in the V beta 8+ population (1/9.900 to 1/22.300) than in the V beta 8- population (1/57.000 to 1/87.200). Control experiments showed that frequencies were not influenced by the treatment with the anti-V beta 8-antibody and the fluorescein-labeled anti-Ig itself. V beta 8+ and V beta 8- T cells did not reveal any frequency differences when several other responses were determined (TNP-specific self-restricted CTL precursor; Th cells specific for keyhole limpet hemocyanin or Listeria monocytogenes).
authors.affiliation: Max-Planck-Institute for Immunobiology, Freiburg, FRG.
authors.forename: H R
authors.initials: HR
authors.lastname: Rodewald
authors.forename: U H
authors.initials: UH
authors.lastname: Koszinowski
authors.forename: K
authors.initials: K
authors.lastname: Eichmann
authors.forename: I
authors.initials: I
authors.lastname: Melchers
mesh_terms: D000818:Animals; D000911:Antibodies, Monoclonal / Q000494:pharmacology; D000956:Antigens, Viral / Q000276:immunology*; D002469:Cell Separation; D003587:Cytomegalovirus / Q000276:immunology*; D003602:Cytotoxicity, Immunologic; D005434:Flow Cytometry; D005803:Genes, Immunoglobulin; D005802:Genes, MHC Class II; D006183:H-2 Antigens / Q000235:genetics* / Q000276:immunology; D000949:Histocompatibility Antigens Class II / Q000235:genetics / Q000276:immunology; D017874:Immediate-Early Proteins; D007135:Immunoglobulin Variable Region / Q000235:genetics*; D008212:Lymphocyte Depletion; D051379:Mice; D008807:Mice, Inbred BALB C; D008809:Mice, Inbred C3H; D008810:Mice, Inbred C57BL; D051381:Rats; D011919:Rats, Inbred Strains; D011948:Receptors, Antigen, T-Cell / Q000235:genetics*; D016693:Receptors, Antigen, T-Cell, alpha-beta; D013602:T-Lymphocytes, Cytotoxic / Q000276:immunology / Q000378:metabolism*
chemical_list: D000911:Antibodies, Monoclonal; D000956:Antigens, Viral; D006183:H-2 Antigens; D000949:Histocompatibility Antigens Class II; C024138:I-E-antigen; D017874:Immediate-Early Proteins; D007135:Immunoglobulin Variable Region; D011948:Receptors, Antigen, T-Cell; D016693:Receptors, Antigen, T-Cell, alpha-beta; C044582:immediate-early proteins, cytomegalovirus