Fig. 1

Effect of IL-32γ on skin tumor development. a Representative images of WT and IL-32γ mice with skin papillomas. b Average number of papillomas per mouse in WT and IL-32γ mice following TPA treatment. n = 8. *p < 0.05. c Tumor incidence, showing the percentage of tumor-bearing mice at time course. n = 8. d hematoxylin and eosin (H&E) staining of skin sections and epidermal thickness in WT and IL-32γ mice. n = 8. *p < 0.05. e PCNA staining of skin sections in WT and IL-32γ mice. Scale bar, 10 μm