Abstract
The present study investigated the effects of viscothionin, a compound isolated from Korean mistletoe (Viscum album coloratum), on nonalcoholic fatty liver disease (NAFLD) in both in vitro and in vivo models. A connection was discovered between viscothionin and the adenosine monophosphate-activated protein kinase (AMPK) signaling pathway, which is involved in lipid metabolism. Viscothionin was shown to significantly attenuate lipid accumulation in HepG2 cells treated with oleic acid, which induces lipid accumulation. Moreover, the phosphorylation of AMPK and acetyl-coenzyme A carboxylase in HepG2 cells was increased by viscothionin treatment. Viscothionin was orally administered to high fat diet-induced obese mice and subsequently histopathological analysis associated with AMPK signaling pathways was evaluated. A significant reduction in the extent of hepatic steatosis was revealed in viscothionin-treated obese mice. Thus, viscothionin mediates its beneficial effects on NAFLD via AMPK signaling pathways, suggesting that it may be a potential target for novel NAFLD treatments.
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