(A–C) Significantly reduced levels of IL-17 (A), IL-22 (B), and IFNγ (C) were measured in the supernatants of Iliac lymph node mononuclear cells from IL-23p19 KO (white bars) mice restimulated in vitro for 96 hours in the presence of UV-EBs relative to those from C57BL/6 mice (black bars). Bars represent the mean ± SEM for 5 mice/strain. @, P < 0.0001 for IL-17 and IL-22 and @, P < 0.05 for IFNγ (by two-way ANOVA over the interval measured). *, P < 0.05; **, P < 0.01; ***, P < 0.001 on individual days (by two-way ANOVA with Bonferroni post-test analysis).