Nuclear Factor (Erythroid-Derived)-Related Factor 2-Associated Retinal Pigment Epithelial Cell Protection under Blue Light-Induced Oxidative Stress

Figure 3

Detection of apoptosis in ARPE-19 cells at 24 h with or without BL exposure. (a) TUNEL (green) staining showed that, 24 h after BL exposure, ARPE-19 cells showed TUNEL positivity, reflecting apoptosis, by BL exposure. (b) There was a significant increase (4.67-fold) in the number of TUNEL-positive RPE cells with BL exposure compared to those without BL exposure. DAPI indicates the nucleus. Scale bar = 100 μm. .

(a)

(b)