Fig. 4: Levels of IL-33 during both the activate and recovery phases of DSS-induced colitis.

a Relative mouse IL-33 mRNA expression in DSS-induced colitis. Data were pooled from three different experiments. b IL-33 protein detected by ELISA at days 0, 3, and 10 (n = 6/group). c Analysis of immunofluorescence for IL-33. d Representative images of IL-33 immunostaining in colonic epithelium. Data are mean ± SD. Student t-test, *P < 0.05; **P < 0.01