Figure 1. UVB induced HaCaT cell injury; A, Cell viability assay revealed UVB inhibited HaCaT cell viability; B, Apoptosis assay revealed UVB promoted HaCaT cell apoptosis; C, Western blotting analysis revealed increased expression of Bax, decreased expression of Bcl-2, and activation of caspase-3 and caspase-9; D, ELISA results demonstrated that UVB promoted the expression of TNF-α; E, ELISA results demonstrated that UVB promoted the expression of IL-6; F, Western blotting analysis revealed overexpression of TNF-α and IL-6 in UVB-induced cells. Data are reported as means±SD. **P<0.01, ***P<0.001 compared to control (ANOVA). UVB: ultraviolet B; ELISA: enzyme-linked immunosorbent assay; TNF-α: tumor necrosis factor-α; IL-6: interleukin-6.