4.7 Article

Natural product puerarin activates Akt and ameliorates glucose and lipid metabolism dysfunction in hepatic cells

Journal

JOURNAL OF FUNCTIONAL FOODS
Volume 55, Issue -, Pages 296-304

Publisher

ELSEVIER
DOI: 10.1016/j.jff.2019.02.035

Keywords

Puerarin; Akt; Insulin signaling pathways; Click reaction; Glucose and lipid metabolism dysfunction

Funding

  1. National Natural Science Foundation of China [81430095, 81673616, 81473403]
  2. International Cooperation and Exchange of the National Natural Science Foundation of China [81761168039]

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Puerarin, one of the major isoflavonoid compounds isolated from Gegen, is widely used to treat glucose and lipid disorders. Identifying the mechanism of puerarin's action against lipid and glucose metabolism dysfunction is very important for its application and development. Based on the structure of puerarin, different chemical probes were synthesized to capture and identify puerarin's protein target. A membrane translocation assay was conducted to identify the interaction between puerarin and target proteins. The results show that puerarin targets the PH domain of Akt1, inhibits Akt1's transmembrane effect and activates Akt1. Activated Akt1 improves the phosphorylation or activity of downstream proteins, such as GSK-3 beta and PDE3, and ultimately regulates glucose and lipid metabolism. Puerarin, as a dietary supplement, could target the PH domain of Akt1 to activate the insulin pathway and improve insulin resistance, thereby assisting in the regulation of glucose and lipid metabolism disorders.

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