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  • P-ISSN 1010-0695
  • E-ISSN 2288-3339

Effect of Samhwangsasim-tang and Daehwanghwangryunsasim-tang on Palmitate-induced Lipogenesis in HepG2 cells

Journal of Korean Medicine / Journal of Korean Medicine, (P)1010-0695; (E)2288-3339
2016, v.37 no.1, pp.62-76


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Abstract

Objectives: The goal of this study was to investigate the anti-lipogenic effects of Samhwangsasim-tang(SHT), Daehwanghwangryunsasim-tang(DHT) aqueous extract on HepG2 cells with palmitate. Materials and Methods: HepG2 cells treated with palmitate were used in this study as hepatic steatosis model. Cells were treated with different concentrations of SHT, DHT aqueous extract for 24 hours. Cell viability and cytotoxicity were analyzed by MTT assay. Expressions of Bcl-2, Bax, Survivin, P21, TGF-β1, LXR-α, ChREBP, ACC1, SCD1 mRNA were determined by Real-time PCR. Apoptosis of cells was detected by ELISA and FACS. Expression level of caspase-3 was studied by Western blot. Lipid accumulation was indicated by Oil Red O staining. Results: SHT, DHT aqueous extract had no cytotoxicity, but decreased palmitate-induced lipid accumulation in HepG2 cells. SHT aqueous extract suppressed fatty acid synthesis by inhibiting LXR-α, ChREBP, SCD1 activation and increasing TGF-β1 expression level. DHT aqueous extract also suppressed fatty acid synthesis by decreasing ChREBP expression and increasing TGF-β1 expression. Apoptosis of lipid accumulated cells was increased by enhanced activities of P21, caspase-3 and inhibited expressions of Bcl-2, Survivin. Conclusions: These results suggest that SHT and DHT have an anti-lipogenic effects on lipid accumulation of hepatic cell. Also SHT and DHT have an efficacy to increase apoptosis of adipocyte without cytotoxicity. Therefore, SHT and DHT might have potential clinical applications for treatment of hepatic steatosis.

keywords
Samhwangsasim-tang, Daehwanghwangryunsasim-tang, Hepatic steatosis, NAFLD, Lipogenesis, Apoptosis


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