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Abstract Title:

Penta-O-galloyl-β-d-glucose, a hydrolysable tannin from Radix Paeoniae Alba, inhibits adipogenesis and TNF-α-mediated inflammation in 3T3-L1 cells.

Abstract Source:

Chem Biol Interact. 2019 Apr 1 ;302:156-163. Epub 2019 Feb 2. PMID: 30721698

Abstract Author(s):

Jinming Peng, Kaikai Li, Wei Zhu, Rongzu Nie, Ruifeng Wang, Chunmei Li

Article Affiliation:

Jinming Peng

Abstract:

Penta-O-galloyl-β-d-glucose (PGG) was purified and identified from Radix Paeoniae Alba by HSCCC and HPLC/ESI-MS, and its inhibitory effects on adipogenesis and TNF-α-induced inflammation were assessed in 3T3-L1 cell line. The results showed that PGG dose-dependently reduced intracellular lipids accumulation, andthis involved decrease the expression levels of major adipogenic markers, PPARγ, C/EBP α, through MAPKs inhibition. This was accompanied by a reduction of lipogenic genes, ACC, FAS, and SCD-1, involved in fatty acid synthesis. Furthermore, PGG also inhibited TNF-α-induced expression of inflammatory cytokines including IL-6 and MCP-1 in the matured 3T3-L1 adipocytes. The inhibitions were likely mediated by blocking the MAPKs and NF-κB activation. These findings highlighted that PGG could serve as a potent therapeutic agent for controlling obesity and obesity-related chronic inflammation.

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