Fig. 6. Type I IFN-dependent induction of IL-10 modulates inflammatory cytokines in mononuclear cells.
Murine RAW264.7 macrophages were stimulated with 100 ng/mL LPS, 1000 IU/mL murine recombinant IFNα2a, 10 ng/mL recombinant murine IL-10 and 1 μg/mL anti-mouse IL10 receptor antibody (anti IL-10R Ab). Human peripheral blood mononuclear cells (PBMCs, N=4) were stimulated with 10 ng/mL LPS, 1000 IU/mL human recombinant IFNα2, 10-2000 pg/mL recombinant human IL-10 and 1 μg/mL anti-human IL10 receptor antibody (anti IL-10R Ab). Protein levels of (A,B) interleukin 10 (IL-10), (C,D,E) tumor necrosis factor α (TNF-α) and (D,F) interleukin 1-β (IL-1β) were analyzed using ELISA. Values are shown as mean ± SEM. Numbers in graphs denote p values; *,#,§,†) p < 0.05 vs. respective control group