Fucoxanthin attenuates fatty acid-induced lipid accumulation in FL83B hepatocytes through regulated Sirt1/AMPK signaling pathway

The fucoxanthin, isolated from brown algae, was reported to have multiple biological functions to anti-inflammation, anti-tumor, and ameliorated obesity in mice. In this study we investigated whether fucoxanthin could inhibit lipids accumulation in FL83B hepatocytes. FL83B cells were induced as fatt...

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Bibliographic Details
Published in:Biochemical and biophysical research communications 2018-01, Vol.495 (1), p.197-203
Main Authors: Chang, Yi-Hsien, Chen, Ya-Ling, Huang, Wen-Chung, Liou, Chian-Jiun
Format: Article
Language:English
Subjects:
60 APPLIED LIFE SCIENCES
ALGAE
AMPK
Anti-obesity
CARBOXYLASE
Fucoxanthin
INFLAMMATION
LIPASES
Lipogenesis
Lipolysis
LIVER CELLS
METABOLIC DISEASES
MICE
OLEIC ACID
RECEPTORS
TRANSCRIPTION FACTORS
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Summary:The fucoxanthin, isolated from brown algae, was reported to have multiple biological functions to anti-inflammation, anti-tumor, and ameliorated obesity in mice. In this study we investigated whether fucoxanthin could inhibit lipids accumulation in FL83B hepatocytes. FL83B cells were induced as fatty liver cell model by 0.5 mM oleic acid for 48 h, and treated with various concentration of fucoxanthin for 24 h. The results demonstrated that fucoxanthin significantly suppressed lipid accumulation and decreased lipid peroxidation in hepatocytes. Fucoxanthin could decrease lipogenesis-related transcription factor expression, including sterol regulatory element-binding proteins 1c and peroxisome proliferator-activated receptor γ. It also reduced fatty acid synthase expression and increased adipose triglyceride lipase and the phosphorylation of hormone-sensitive lipase production for lipolysis. Furthermore, fucoxanthin significantly increased phosphorylation of AMP-activated protein kinase (AMPK), and decreased activity of acetyl-CoA carboxylase for regulating fatty acid synthesis. The results suggest that fucoxanthin is an effective marine nature compound for increasing lipolysis and inhibiting lipogenesis in oleic acid induced fatty liver cells through promoted Sirt1/AMPK pathway. •Fucoxanthin decreases expression oftranscription factors associated withlipogenesis.•Fucoxanthin is effective for increasinglipolysis.•Fucoxanthin increases phosphorylation of AMPK,leading to decrease activity of ACC for fatty acid synthesis.
ISSN:0006-291X
1090-2104
DOI:10.1016/j.bbrc.2017.11.022