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Berberine Hydrochloride Protects C2C12 Myoblast Cells Against Oxidative Stress-Induced Damage via Induction of Nrf-2-Mediated HO-1 Expression.
Drug Development Research 2016 September
Preclinical Research The aim of the present study was to evaluate the effects of berberine hydrochloride (BBH), an isoquinoline alkaloid that can be isolated from a variety of herbs, on hydrogen peroxide (H2 O2 )-induced oxidative stress in C2C12 myoblasts and to investigate the molecular mechanisms involved in this process, especially the expression of the Nrf2/HO-1 pathway. BBH preconditioning attenuated H2 O2 -induced growth inhibition and DNA damage as well as apoptosis in C2C12 cells via suppression of the accumulation of intracellular reactive oxygen species (ROS). Treatment with BBHride alone effectively upregulated the expression of nuclear factor-erythroid 2-related factor 2 (Nrf2) and heme oxygenase-1 (HO-1) and elevated HO-1 activity. However, the protective effects of BBH against H2 O2 -induced ROS generation and cell growth reduction were abolished by an HO-1 inhibitor. Moreover, BBH-mediated induction and activation of HO-1 were reduced by genetic silencing of Nrf2 using small interfering RNA (siRNA). In addition, the effects of BBH against H2 O2 -induced ROS accumulation and growth inhibition were abrogated in C2C12 cells transfected with Nrf2 siRNA. Therefore, the present study demonstrated that BBH could protect C2C12 cells against oxidative stress-induced injury and this effect involved activation of the Nrf2/HO-1 pathway. Drug Dev Res, 2016. © 2016 Wiley Periodicals, Inc.
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