Abstract
The present study investigated the effects of scutellarin on oxidative stress-induced cell apoptosis in PC12 cells. Exposure of cells to hydrogen peroxide (H2O2) triggered a typical apoptosis, as evidenced by DNA fragmentation, DNA loss and externalization of phosphatidylserine (PS). This treatment also caused significant elevation of oxidative stress characterized by intracellular accumulations of reactive oxygen species (ROS) and malondialdehyde (MDA), a product of lipid peroxidation. Preincubation of cells with scutellarin significantly inhibited the fragmentation and loss of DNA, the externalization of PS, and decreased the percentage of cell apoptosis. Also, intracellular accumulations of ROS and MDA resulting from H2O2 exposure were significantly reduced by scutellarin. These findings suggest that scutellarin exerts significant protection against oxidative stress-induced apoptosis, which might be beneficial for the prevention and treatment of oxidative stress-mediated disorders.
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