IL33 and asthma: In an ovalbumin (OVA)-induced asthma mouse model, two rounds of sensitization using OVA/aluminum hydroxide and subsequent OVA inhalation induced greater IL-33 and CCL2 production by epithelial cells from female mice at 1 and 4 h after OVA inhalation, respectively, than that in male mice (Figure 1A, a detailed methodology for Figure 1 is described in Supplementary Materials File S1).