title: Production of interferon-alpha/beta by murine dendritic cell lines stimulated by virus and bacteria.
abstract: The interferon-alpha and -beta (IFN-alpha/beta) producing ability of the two murine dendritic cell (DC) lines D2SC/1 and FSDC was studied. The D2SC/1 cells produced IFN-alpha and -beta when stimulated by herpes simplex virus (HSV), Sendai virus (SV) or by the bacteria Escherichia coli or Staphylococcus aureus Cowan I. Precultivating (priming) D2SC/1 cells with recombinant IFN-beta or a combination of IFN-beta and granulocyte-macrophage colony-stimulating factor increased production of IFN-alpha/beta induced by HSV or the bacteria, but not by SV. Also, the kinetics of IFN-alpha/beta responses were different for SV compared to HSV and the bacteria, suggesting different induction mechanisms. The FSDC cells differed from the D2SC/1 cells mainly in that predominantly IFN-beta was produced, that little or no IFN-alpha/beta production was induced by the bacteria, and that the IFN-alpha/beta responses were most efficiently primed by IFN-gamma. Priming the DC lines with tumour necrosis factor-alpha, interleukin-10 (IL-10) or IL-4 did not affect the IFN-alpha/beta response induced by HSV. The results show that the two DC lines provide a convenient tool to study the induction and control of the IFN-alpha/beta response, as well as the immunoregulatory role of IFN-alpha/beta produced by DC.
authors.affiliation: Department of Veterinary Microbiology, Swedish University of Agricultural Sciences, Uppsala, Sweden.
authors.forename: M L
authors.initials: ML
authors.lastname: Eloranta
authors.forename: K
authors.initials: K
authors.lastname: Sandberg
authors.forename: P
authors.initials: P
authors.lastname: Ricciardi-Castagnoli
authors.forename: M
authors.initials: M
authors.lastname: Lindahl
authors.forename: G V
authors.initials: GV
authors.lastname: Alm
mesh_terms: D000818:Animals; D002460:Cell Line; D003713:Dendritic Cells / Q000276:immunology*; D004926:Escherichia coli / Q000276:immunology*; D018259:Herpesvirus 1, Human / Q000276:immunology*; D016898:Interferon-alpha / Q000096:biosynthesis*; D016899:Interferon-beta / Q000096:biosynthesis*; D051379:Mice; D008807:Mice, Inbred BALB C; D008810:Mice, Inbred C57BL; D008811:Mice, Inbred DBA; D018108:Respirovirus / Q000276:immunology*; D012867:Skin / Q000166:cytology; D013154:Spleen / Q000166:cytology; D013211:Staphylococcus aureus / Q000276:immunology*
chemical_list: D016898:Interferon-alpha; D016899:Interferon-beta