title: Professional antigen-presentation function by human gammadelta T Cells.
abstract: Human gammadelta T cells are considered to play a vital role in protective immunity through cytokine secretion and cytotoxic activity. We report that cells expressing the Vgamma2Vdelta2+-T cell receptor (Vdelta2+ T cells) also display principal characteristics of professional antigen-presenting cells such as dendritic cells. Thus, when activated, these cells efficiently processed and displayed antigens and provided co-stimulatory signals sufficient for strong induction of naïve alphabeta T cell proliferation and differentiation. We suggest that, upon microbial activation, Vdelta2+ T cells participate in the induction of adaptive immune responses and that these cells may be a useful tool in vaccine development and immunotherapy.
authors.affiliation: Institute of Cell Biology, University of Bern, CH-3012, Switzerland.
authors.forename: Marlène
authors.initials: M
authors.lastname: Brandes
authors.forename: Katharina
authors.initials: K
authors.lastname: Willimann
authors.forename: Bernhard
authors.initials: B
authors.lastname: Moser
mesh_terms: D017951:Antigen Presentation; D000938:Antigen-Presenting Cells / Q000276:immunology*; D001427:Bacterial Toxins / Q000276:immunology; D015496:CD4-Positive T-Lymphocytes / Q000166:cytology / Q000276:immunology; D018414:CD8-Positive T-Lymphocytes / Q000166:cytology / Q000276:immunology; D002454:Cell Differentiation; D016764:Cell Polarity; D003713:Dendritic Cells / Q000276:immunology; D004768:Enterotoxins / Q000276:immunology; D006684:HLA-DR Antigens / Q000276:immunology / Q000378:metabolism; D000949:Histocompatibility Antigens Class II / Q000276:immunology / Q000378:metabolism; D006801:Humans; D007110:Immunity, Active; D008213:Lymphocyte Activation; D016693:Receptors, Antigen, T-Cell, alpha-beta / Q000276:immunology; D016692:Receptors, Antigen, T-Cell, gamma-delta / Q000276:immunology*; D018089:Superantigens / Q000276:immunology; D016176:T-Lymphocyte Subsets / Q000166:cytology / Q000276:immunology*; D013602:T-Lymphocytes, Cytotoxic / Q000166:cytology / Q000276:immunology; D013745:Tetanus Toxoid / Q000276:immunology; D014373:Tuberculin / Q000276:immunology
chemical_list: D001427:Bacterial Toxins; D004768:Enterotoxins; D006684:HLA-DR Antigens; D000949:Histocompatibility Antigens Class II; D016693:Receptors, Antigen, T-Cell, alpha-beta; D016692:Receptors, Antigen, T-Cell, gamma-delta; D018089:Superantigens; D013745:Tetanus Toxoid; D014373:Tuberculin; C030107:enterotoxin F, Staphylococcal