ER stress homeostasis regulated by NB-UVB/ADSCs transplantation treatment. (A) Oxidative stress level detected by ELISA. (B) ROS detected by immunofluorescence (scale bar=20 µm). (C) The relative expression level of protein (GRP78 and caspase-12) detected by western blotting. (D) GRP75 expression level detected by western blotting. All the data are represented as the mean ± standard deviation (n=3). *P<0.05. ER, endoplasmic reticulum; NB-UVB, narrow band ultraviolet B; ADSCs, adipose-derived stem cells; ROS, reactive oxygen species; GRP, glucose-regulated protein; Con, mice were treated with Vaseline only; VIT, mice in vitiligo model group treated with 40% monobenzone cream; NUA, mice treated with narrow band ultraviolet B and adipose-derived stem cells together.