IFNG and neoplasm: Factors likely to increase protective immunity against SCC were CTACK (also known as CCL27), a chemokine that is crucial for recruiting skin-homing T cells to sites of cutaneous immune activation [58]–[60], and IL-12 and IFN-γ, cytokines that are critical for the initiation and maintenance of cell-mediated [61], [62] and anti-tumor immunity [63]–[67].