The effects of ADSC-CM on UVB-induced NF-κB/HO-1 activation in HaCaTs (a) and NHDFs (b). HaCaTs and NHDFs were irradiated with UVB, followed by treatment with 50% or 100% ADSC-CM for 2 h, respectively. The levels of NF-κB, IκBα, and HO-1 were measured using western blotting. The band intensities were quantified with densitometry and calculated as a percentage of the basal response. The results are shown as the mean ± SD of at least three independent experiments. #
p < 0.05 and ###
p < 0.001, compared with the non-irradiated control. * p < 0.05, ** p < 0.01, and *** p < 0.001, compared with the irradiated, ADSC-CM free control.