CCL20 and psoriasis: qPCR analysis of psoriasis-related genes showed that CXCR5, IL22, KRT16, IL17C, CXCL1, and CCL20 expression was also reduced in cells incubated with exosomes containing miR-124-3p, which was similar to the effect of transfection with miR-124-3p mimic by RNAiMAX (Figure 5(e)).