1. CHO et al. Supplementary Figure 1 * * * Supplementary Fig. 1. Primary human epidermal keratinocytes were grown in dermal cell culture medium with growth supplements described in Materials and Methods. Primary keratinocytes were treated with 100 ng/ml of either IL-17, IL-22, or IL-1 , for 24 hrs, and culture supernatants were collected for the measurement of active form of IL-1  by ELISA. Data are expressed as the means  SEM of three independent experiments and compared with those of the ‘no treatment’ group (P < 0.05).

2. CHO et al. Supplementary Figure 2 * ** Gr-1 No Tx IL-17IL-22 IL-1β C56BL/6 Caspase-1 KO CD11b 6.7 473136 1.85.3234.2 CD11c C56BL/6 Caspase-1 KO B No Tx IL-17 IL-22 IL-1β 3.821915 2.843.27 A C Class II MHC

3. Supplementary Fig. 2. The total cell numbers and the proportion of neutrophils (Gr-1 +, CD11b+ cells) and dendritic cells (CD11c +, class II MHC + cells) in WT and caspase-1 KO mice. (A) Total cells isolated from mice ears were collected and numbered. Data are expressed as means ± SEM of three independent experiments (* P < 0.05). (B) Cells isolated from ears of mice were stained for 20 min at room temperature with anti-mouse Ly-6G/Ly-6C (Gr-1) (108405, BioLegend), anti-CD11b (101207, BioLegend) to detect neutrophils. (C) Cells were stained with anti-mouse CD11c (117307, BioLegend, San Diego, CA, USA), and anti-mouse I-A/I-E (107605, BioLegend) to detect dendritic cells. Data were acquired on a FACSCalibur system (BD Bioscience) and analyzed using CellQuest software (BD Bioscience). CHO et al. Supplementary Figure 1