CCL20 and psoriasis: However, in the future, we should pay more effort into the validation and investigation of the specific regulatory mechanisms of CCNE1 with CXCL8/9/10 and CCL20, and whether IL-17 can stimulate CCNE1 expression in keratinocytes, CD4+T cells and neutrophils in the pathogenesis of psoriasis, in addition to this, expanded samples are also needed to further improve the sensitivity of the diagnostic genes.