Considering its proposed triggering role in psoriasis [17], it is interesting to note that LL37 increases IL-36γ protein expression and release from keratinocytes, that both LL37 and IL-36γ are coordinately abundant in psoriasis epidermis and IL-36γ in turn upregulates the production of chemokine (C-X-C motif) ligand 1 (CXCL1), CXCL8, CXCL10 and CCL20 in keratinocytes [18]. The gene discussed is CCL20; the disease is psoriasis.