Acer okamotoanum protects SH-SY5Y neuronal cells against hydrogen peroxide-induced oxidative stress
2019
Kim, J.H., Pusan National University, Busan, Republic of Korea | Lee, S.H., Chung-Ang University, Anseong, Republic of Korea | Cho, E.J., Pusan National University, Busan, Republic of Korea
Oxidative stress by over-production of reactive oxygen species (ROS) in brain is widely known as a cause of neurodegenerative disease. We investigated protective effects of Acer okamotoanum against oxidative stress by hydrogen peroxide (H₂O₂) in SH-SY5Y neuronal cells. Acer okamotoanum reduced ROS production and lactate dehydrogenase release in H₂O₂-induced SH-SY5Y cells, resulting in elevation of cell viability. To elucidate protective mechanisms, we measured inflammation and apoptosis-associated protein expressions. Treatment with A. okamotoanum dose-dependently decreased pro-inflammatory proteins such as inducible nitric oxide synthase and cyclooxygenase-2. Treatment with A. okamotoanum showed down-regulation of pro-apoptosis genes such as cleaved caspase-3, cleaved caspase-9, and Bax, and up-regulation of anti-apoptosis protein including Bcl-2, in H₂O₂-induced SH-SY5Y cells. We demonstrated potential anti-inflammatory and anti-apoptotic effect of A. okamotoanum in H2O2-induced SH-SY5Y cells. These results suggest that A. okamotoanum may possess neuroprotective potential, but further study is necessary to elucidate its pharmacological effects in neurodegenerative diseases.
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