title: Tumour necrosis factor-alpha but not lipopolysaccharide enhances preference of murine dendritic cells for Th2 differentiation.
abstract: Using murine spleen-derived dendritic cells (DC) and DO11.10 T cells specific for ovalbumin (OVA), the influences of maturational condition and antigen dose on the capability of DC to induce helper T-cell (Th) differentiation were analysed. Immature DC (iDC) with high- or low-dose OVA(323-339) predominantly induced Th1 or Th2 responses in DO11.10 T cells, respectively. DC matured by tumour necrosis factor-alpha (TNF/DC) induced a significantly higher Th2 response in the presence of low-dose OVA(323-339) than iDC and DC matured by lipopolysaccharide (LPS) (LPS/DC). In the presence of high-dose OVA(323-339), LPS/DC induced significantly lower levels of Th1 response than iDC. Under these conditions no difference in the Th1 response was noted between TNF/DC and iDC. The enhanced capability of TNF/DC with a low-dose antigen for Th2 polarization and the decreased preference of LPS/DC with a high-dose antigen to Th1 polarization were not related to the amount of IL-12 produced in these cultures. These results demonstrate for the first time that TNF/DC with a low-dose antigen are potent inducers of Th2 differentiation.
authors.affiliation: Division of Immunobiology, Institute for Genetic Medicine, Hokkaido University, Sapporo, Japan.
authors.forename: Kazuhiro
authors.initials: K
authors.lastname: Kikuchi
authors.forename: Yoshiki
authors.initials: Y
authors.lastname: Yanagawa
authors.forename: Toshimasa
authors.initials: T
authors.lastname: Aranami
authors.forename: Chikako
authors.initials: C
authors.lastname: Iwabuchi
authors.forename: Kazuya
authors.initials: K
authors.lastname: Iwabuchi
authors.forename: Kazunori
authors.initials: K
authors.lastname: Onoé
mesh_terms: D000818:Animals; D018929:Cell Culture Techniques; D002454:Cell Differentiation / Q000276:immunology; D002460:Cell Line; D003713:Dendritic Cells / Q000166:cytology / Q000276:immunology*; D004306:Dose-Response Relationship, Immunologic; D016130:Immunophenotyping; D018664:Interleukin-12 / Q000096:biosynthesis; D008070:Lipopolysaccharides / Q000276:immunology*; D051379:Mice; D008807:Mice, Inbred BALB C; D008822:Mice, Transgenic; D018417:Th1 Cells / Q000276:immunology; D018418:Th2 Cells / Q000276:immunology*; D014409:Tumor Necrosis Factor-alpha / Q000276:immunology*
chemical_list: D008070:Lipopolysaccharides; D014409:Tumor Necrosis Factor-alpha; D018664:Interleukin-12