title: Simple assay for evaluation of Epstein-Barr virus specific cytotoxic T lymphocytes.
abstract: Epstein-Barr virus (EBV)-specific cytotoxic T lymphocytes (CTL) are considered to be one of major defenses against the activation of EBV infection. We have developed a simple assay for evaluation of EBV-CTL by means of culturing peripheral blood mononuclear cells at the concentration of 2 x 10(6) cells/ml infected by B95-8 EBV, in the presence or absence of cyclosporin A (CSA). No lymphoblastoid cell line was established from ten EBV-seropositive healthy individuals in the absence of CSA. In contrast, cell lines were established from ten EBV-seronegative healthy individuals in the absence of CSA, indicating lack of EBV-CTL in these individuals. Methods described herein are simple and correlate well with EBV-CTL activity when compared to conventional methods, such as outgrowth regression or chromium-51 release assays.
authors.affiliation: Department of Pediatrics, Hokkaido University School of Medicine, Sapporo, Japan.
authors.forename: M
authors.initials: M
authors.lastname: Okano
authors.forename: D T
authors.initials: DT
authors.lastname: Purtilo
mesh_terms: D017951:Antigen Presentation; D002455:Cell Division; D002478:Cells, Cultured; D002999:Clone Cells / Q000276:immunology; D016572:Cyclosporine / Q000494:pharmacology; D004854:Herpesvirus 4, Human / Q000276:immunology*; D006801:Humans; D008722:Methods; D013602:T-Lymphocytes, Cytotoxic / Q000276:immunology* / Q000821:virology
chemical_list: D016572:Cyclosporine