IL23A and skin basal cell carcinoma: Overall, we observed that IL-23 and IFN-γ mRNA expression was elevated in all BCC samples as compared to normal skin (p<0.01 for IL-23 and IFN-γ); in detail, we observed a 26-fold increase of IL-23 and a 19-fold increase of IFN-γ in BCCs (Fig 1C).