<p>HaCaT were treated with IL-22(25 ng/ml), IL-17A (100 U/ml) and IFN-γ (100 U/ml) alone or in combination. (<b>A</b>) The real-time PCR analysis of K17 mRNA levels after 24 h; Data are expressed as 2<sup>−ΔΔCT</sup> relative to untreated HaCaT cells. (<b>B</b>) The Western blot analysis of K17 protein expression. The blank group is untreated HaCaT cells. Results represent means±SEM from three independent experiments. *P<0.05 was considered significant.</p
