Knowing that neutrophils can also infiltrate psoriatic skin (24, 25), and carbamylation and citrullination may occur locally in the presence of neutrophils either degranulating or undergoing neutrophil extracellular traps extrusion (NETosis), the purpose of this study was to address whether LL37, modified by citrullination and carbamylation, might concur to the pathogenesis of psoriasis, by affecting the characteristics of autoreactive T cells. This evidence concerns the gene CAMP and psoriasis.