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KMID : 1123920230370040068
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Korean Journal of Oriental Physiology and Pathology
2023 Volume.37 No. 4 p.68 ~ p.72
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Neuroprotective Effect of Hepad S9-1 in MPP+-treated PC12 Cells
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Park Byung-Jun
Kim Dong-Hee
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Abstract
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Parkinson’s disease is the second most common neurodegenerative disease. Levodopa has a good effect for a period of two to five years, but long-term use reduces the effectiveness of the drug and accompanies side effects. To date, there is no strategy that has been able of fundamental treatment of Parkinson’s disease. We developed Hepad S9-1 composed of 5 herbal materials (Paeonia lactiflora Pallas, Uncaria sinensis Havil, Spatholobus suberectus Dunn, Panax ginseng C. A. Meyer, and Glycyrrhiza uralensis Fischer). This in vitro study was conducted to search a novel disease-modifying drug, observing the effect of Hepad S9-1, a plant derived compounds on the apoptotic process of PC12 cells which was induced by 1-methyl-4-phenylpyridinium (MPP+). 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay was performed to determine the effect of MMP+ or Hepad S9-1 on cell viability in PC12 cells. In addition, we examined cell protective effect of Hepad S9-1 in MPP+-induced PC12 cells. And gene and protein expression level of various factors that regulate apoptosis were confirmed by real-time PCR and western blot analysis. As a result of the study, Hepad S9-1 significantly inhibited MPP+-induced neuronal cell death. Also, Hepad S9-1 inhibited apoptosis-inducing Bcl-2 associated X (Bax) gene and protein expression, cytochrome C protein expression, caspase-9, caspase-7, caspase-3 and poly ADP-ribose polymerase (PARP) activation. In addition, the neuroprotective ability was objectively confirmed by up-regulating the genes and proteins expression of B-cell lymphoma-2 (Bcl-2) and B-cell lymphoma-extra large (Bcl-xl) that defend at apoptosis. Therefore, it seems that Hepad S9-1 can be additionally applied to the treatment of Parkinson’s disease to suppress the progression of dopaminergic neuronal cell death.
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KEYWORD
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Hepad S9-1, Parkinson’s disease, Apoptosis, PC12 cell, Neuroprotective effect
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