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Isolation and Differentiation of Stromal Vascular Cells to Beige/Brite Cells
Published on: March 28, 2013
4-Hydroxyderricin, as a PPARγ Agonist, Promotes Adipogenesis, Adiponectin Secretion, and Glucose Uptake in 3T3-L1
Yongjia Li1, Tsuyoshi Goto1,2, Kanae Yamakuni1
1Laboratory of Molecular Function of Food, Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Uji, Kyoto, 611-0011, Japan.
Abstract:
Adipocyte differentiation plays a pivotal role in maintaining the production of small-size adipocytes with insulin sensitivity, and impaired adipogenesis is implicated in insulin resistance. 4-Hydroxyderricin (4-HD), a phytochemical component of Angelica keiskei, possesses diverse biological properties such as anti-inflammatory, antidiabetic, and antitumor. In the present study, we investigated the effects of 4-HD on adipocyte differentiation. 4-HD promoted lipid accumulation in 3T3-L1 cells, upregulated both peroxisome proliferator-activated receptor (PPAR)-γ mRNA and protein expression, and acted as a ligand for PPARγ in the luciferase assay. Moreover, 4-HD increased the mRNA and protein expression levels of adiponectin. Additionally, it promoted insulin-dependent glucose uptake into 3T3-L1 adipocytes and increased Akt phosphorylation and glucose transporter (GLUT) 4 mRNA expression. In summary, these findings suggest that 4-HD, which promoted adipogenesis and insulin sensitivity in 3T3-L1 cells, might be a phytochemical with potent insulin-sensitizing effects.
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