(A) Scheme representing the innate immune response experiment. (B) Flow cytometric analysis of the immune cell influx in the lungs of PBS, Ym1 crystal and soluble Ym1 treated mice measured 6 and 24 hr after i.t. injection. Data are pooled from 2 (for 6 hr time point) or 3 (for 24 hr time point) independent experiments with n=13, 13, 13, 14, 15 and 15, respectively. (C) Concentration of IL-6 and TNFα in the BAL fluid measured by ELISA. (D, E) Concentration of IL-1β, IL-33 (D), CCL2 and CCL24 (E) per milligram of protein of dispersed lung tissue measured by ELISA. Data are pooled from two independent experiments with n=13 per group. Data are shown as mean ± SEM. ns p≥0.05; *p<0.05; **p<0,01; ***p<0.001; ****p<0.0001. (F) ImageStream pictures of the BAL fluid of Ym1 crystal and soluble Ym1 treated mice 6 and 24 hr after i.t. injection. Samples were stained with an antibody recognizing Ym1/2 (red).