IL17A and psoriasis: Psoriasis was induced by applying imiquimod (IMQ) cream to the back and ear skin of mice for 7 consecutive days, and ndSTAT1-TMD, ndSTAT1-TMD (V426D, T427D), or anti-IL-17A antibody as a positive control was administered via intra-peritoneal injection every 2 days from the day of initial disease induction (Figure 4A) (35, 36).