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KMID : 0363320160370030442
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Journal of Korean Oriental Internal Medicine
2016 Volume.37 No. 3 p.442 ~ p.452
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Effect of Jungmanbunso-hwan Extract on HepG2 Cell Model of Nonalcoholic Fatty Liver Disease Caused by Palmitate
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Lee Ji-Won
Choi Chang-Won
Jeon Sang-Yun
Han Chang-Woo
Ha Ye-Jin
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Abstract
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Objectives: This study was performed to investigate the anti-lipogenic effect and the mechanism of Jungmanbunso-hwan extract (JMBSH) on a cellular model of non-alcoholic fatty liver disease (NAFLD) caused by palmitate in HepG2 cells.
Methods: The JMBSH was prepared, andHepG2 cells were treated with various concentrations of JMBSH in order to perform an MTT assay. The HepG2 cells were cultivated in palmitate-containing media with or without extract of JMBSH. The intracellular lipid content in the HepG2 cells was examined. The effects of JMBSH on sterol regulatory element-binding transcription factor-1c (SREBP-1c), acetyl-CoA carboxylase (ACC), fatty acid synthase (FAS), stearoyl-CoA desaturase-1 (SCD-1), and AMP-activated protein kinase (AMPK) activation in HepG2 cells were measured.
Results: JMBSH did not reduce HepG2 cell viability under 1,000 μg/mL. JMBSH considerably decreased intracellular lipid accumulation caused by palmitate in HepG2 cells. JMBSH repressed expression of SREBP-1c, which mediates the induction of lipogenic genes (ACC, FAS, and SCD-1). JMBSH also activated AMPK, which plays animportant role in the regulation of hepatic lipid metabolism.
Conclusions: This study suggested that JMBSH relieves hepatic steatosis by repressing SREBP-1c, which mediates the induction of lipogenic genes. The anti-lipogenic effect of JMBSH may also be related to the activation of AMPK. Therefore, JMBSH could potentially be applied to NAFLD treatment after further clinical studies.
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KEYWORD
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Jungmanbunso-hwan, NAFLD, SREBP-1c, AMPK
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