Figure 5
Cells expressing IL-1⍺ and IL-1R are observed in the fibrotic liver environment. (a) Cytokines in tissue lysates from mice at 9 wpi were measured by ELISA in liver. Data are presented as fold change relative to the mean of uninfected levels. N = 11–12 mice per group, pooled from three independent experiments. (b) IL-1α levels in the sera at 9 wpi measured by ELISA. N = 9–14 mice per group, pooled from four independent experiments. (c) Immunofluorescence labeling of nuclei (DAPI white), IL-1⍺ (green), CD45 (red), and collagen1⍺1 (blue) in the liver of UI or 9 wpi WT mice. Number of cells staining positive for CD45 and/or IL-1⍺, average 2–3 fields of view where immune infiltrate was present from 3 mice per condition are quantified on the right. Error bars are standard deviation. (d) Immunofluorescent labeling of nuclei (DAPI white), ⍺-smooth muscle actin (green), IL-1R (red), and collagen1⍺ (blue) in the liver of uninfected or 9 wpi WT. Inset, arrow head represents ⍺-smooth muscle actin/IL-1R co-staining cells (arrow heads). Number of cells staining positive for IL-1R and/or ⍺-SMA, average of 4–8 fields of view from 3 mice are quantified on the right. Error bars are standard deviation. (c,d) represent maximum intensity projections of 9–13 μm thick z-stacks. Scale bar represents 50 μm. Error bars are standard error of the mean except where noted otherwise. *P < 0.05; **P < 0.01; ***P < 0.001 by unpaired Student’s t test.
