title: A mutant of Escherichia coli enterotoxin inducing a specific Thl-type of T cells to varicella-zoster vaccine enhances the production of IL-12 by IFNgamma-stimulated macrophages.
abstract: A mutant of Escherichia coli enterotoxin induces specific Thl-type T cells to varicella-zoster vaccine. The mutant increased IL-12p40, TNFalpha and nitric oxide production by IFNgamma-stimulated bone marrow macrophages but cholera toxin did not. Anti-TNFalpha antibodies blocked its stimulation of IL-12p40 production but iNOS inhibitor did not. IL-12p40 and IL-12p35 production was stimulated at the level of mRNA formation by the mutant. Cholera toxin suppressed IL-12beta1 expression by spleen T cells stimulated with anti-CD3 antibodies but the mutant did not. These findings indicate that the mutant may induce Thl-type response to the vaccine through its IL-12 and TNFalpha induction by macrophages.
authors.affiliation: Department of Microbiology, Fujita Health University School of Medicine, Toyoake, Aichi 470-1192, Japan.
authors.forename: Toshiyasu
authors.initials: T
authors.lastname: Shimizu
authors.forename: Keiko
authors.initials: K
authors.lastname: Sasaki
authors.forename: Michio
authors.initials: M
authors.lastname: Kato
authors.forename: Hideyuki
authors.initials: H
authors.lastname: Arimitsu
authors.forename: Sadayuki
authors.initials: S
authors.lastname: Ochi
authors.forename: Tomomasa
authors.initials: T
authors.lastname: Yano
authors.forename: Keiji
authors.initials: K
authors.lastname: Oguma
authors.forename: Takashi
authors.initials: T
authors.lastname: Yokochi
authors.forename: Takao
authors.initials: T
authors.lastname: Tsuji
mesh_terms: D000276:Adjuvants, Immunologic / Q000008:administration & dosage; D000818:Animals; D001427:Bacterial Toxins / Q000008:administration & dosage / Q000235:genetics / Q000276:immunology*; D019433:Chickenpox Vaccine / Q000008:administration & dosage / Q000276:immunology*; D002772:Cholera Toxin / Q000276:immunology; D004768:Enterotoxins / Q000008:administration & dosage / Q000235:genetics / Q000276:immunology*; D004926:Escherichia coli; D029968:Escherichia coli Proteins / Q000008:administration & dosage / Q000235:genetics / Q000276:immunology*; D005260:Female; D005434:Flow Cytometry; D005786:Gene Expression Regulation; D014645:Herpesvirus 3, Human / Q000276:immunology; D007371:Interferon-gamma / Q000276:immunology; D018664:Interleukin-12 / Q000096:biosynthesis*; D008264:Macrophages / Q000276:immunology*; D051379:Mice; D008807:Mice, Inbred BALB C; D008810:Mice, Inbred C57BL; D009154:Mutation; D009569:Nitric Oxide / Q000096:biosynthesis; D012333:RNA, Messenger / Q000032:analysis; D018123:Receptors, Interleukin / Q000032:analysis; D053707:Receptors, Interleukin-12; D018417:Th1 Cells / Q000276:immunology*; D014158:Transcription, Genetic; D014409:Tumor Necrosis Factor-alpha / Q000096:biosynthesis
chemical_list: D000276:Adjuvants, Immunologic; D001427:Bacterial Toxins; D019433:Chickenpox Vaccine; D004768:Enterotoxins; D029968:Escherichia coli Proteins; D012333:RNA, Messenger; D018123:Receptors, Interleukin; D053707:Receptors, Interleukin-12; D014409:Tumor Necrosis Factor-alpha; D018664:Interleukin-12; D009569:Nitric Oxide; D007371:Interferon-gamma; D002772:Cholera Toxin; C027538:heat-labile enterotoxin, E coli