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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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Objective : The water extract of Chungsimyeonja-eum (CSYJE) has traditionally been used in treatments of heart diseases and brain diseases in Oriental medicine. However, little is known about the mechanism by which CSYJE protects neuronal cells from injury damages. Therefore, in this study we attempted to elucidate the mechanism of the cytoprotective effect of the CSYJE extract on glutamate-induced C6 glial cell death.
Methods : Cultured cells were pretreated with CSYJE and exposed to glutamate, cell damage was assessed by using MTT assay and propidium iodide (PI), probe 2',7'-dichlorofluorescein diacetate (DCF-DA) staining. Western blotting was performed using anti-procaspase-3 and anti-PARP, respectively.
Result : We determined the elevated cell viability by CSYJE extract on glutamate-induced C6 glial cell death. Glutamate induced DNA fragmentation on C6 glial cells but pre-treatment with CSYJE inhibited DNA fragmentation. One of the main mediators of glutamate-induced cytotoxicity was known to generation of reactive oxygen species (ROS). Pre-treatment with CSYJE inhibited this ROS generation from glutamate-stimulated C6 glial cells. Also, we identified that the ROS-induced DCF-DA green fluorescence was reduced by CSYJE pre-treatment. The critical markers of apoptotic cell death are the cleavages of procaspase-3 protease and PARP proteins, so we checked the expression level and cleavages of procaspase-3 protease and PARP proteins. Glutamate-treated C6 glial cells showed the cleavages of procaspase-3 protease and PARP proteins and followed the reduction of expression of these proteins.
Conclusion : These findings indicate that CSYJE may prevent cell death from glutamate-induced C6 glial cell death by inhibiting the ROS generation and procaspase-3 and PARP expression.
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참고문헌 (29)
참고문헌 신청
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Cho Y / 1990 / Uptake of glutamate and cystein in C6 glioma cells and in cultured astrocytes / J. Neurochem. 55 : 2091 ~ 2097
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Farooqui T / 2009 / Aging: an important factor for the pathogenesis of neurodegenerative diseases / Mech Ageing Dev. 130 : 203 ~ 215
Cho Y / 1990 / Uptake of glutamate and cystein in C6 glioma cells and in cultured astrocytes / J. Neurochem. 55 : 2091 ~ 2097
Cunningham LM / 2009 / A review of assistive technologies for people with Parkinson's disease / Technol Health Care 17 (3) : 269 ~ 279
Dean OM / 2009 / A role for glutathione in the pathophysiology of bipolar disorder and schizophrenia: Animal models and relevance to clinical practice / Curr Med Chem. 16 (2
Farooqui T / 2009 / Aging: an important factor for the pathogenesis of neurodegenerative diseases / Mech Ageing Dev. 130 : 203 ~ 215
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