Fig. 5

Decrease of fluorescence intensity by MitoQ in ROS-induced mitochondria DNA damage. a HeLa cells were treated with the TAT-S3 probe for 24 h. HeLa cells were treated with 0.2, 0.5 and 0.7 μM MitoQ for 30 min and then treated with 500 μM H₂O₂ for 1 h. HeLa cells were stained with Mitotracker (Green) at 37 °C for 15 min. b Fluorescence intensity of the TAT-S3 probe in (a) was measured by ImageJ software. Data shown represent means of 3 individual experiments