Fig. 1
From: Collagen-induced arthritis and imiquimod-induced psoriasis develop independently of interleukin-33
LacZ expression in mouse joints with or without collagen-induced arthritis (CIA). Knee joint sections of mice without CIA (a, b, c, d) or with CIA (day 10 (e, f) or day 35 (g, h) after CIA induction were stained with X-gal, and blue staining was observed at × 10 (a, c, e, g) or × 20 (h) or × 40 (b, d, f) magnification. IL-33+/+ wild-type (WT) mice (a, b) and interleukin (IL)-33-/- mice (c, d, e, f, g, h) were analyzed. Slides are representative of eight WT mice, eight IL-33-/- mice without CIA, five IL-33-/- mice at day 10 after CIA, and four IL-33-/- mice at day 35 after CIA