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Foenumoside B from Lysimachia foenum-graecum inhibits adipocyte differentiation and obesity induced by high-fat diet.
MedLine Citation:
PMID:  22197824     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
We have previously reported anti-obesity effects of Lysimachia foenum-graecum in high-fat diet (HFD)-induced obesity model. Here we isolated a triterpene saponin foenumoside B as an active component of L. foenum-graecum. Foenumoside B blocked the differentiation of 3T3-L1 preadipocytes in a dose-dependent manner with an IC50 of 0.2μg/ml in adipogenesis assay and suppressed the induction of PPARγ, the master regulator of adipogenesis. Foenumoside B induced the activation of AMP-activated protein kinase (AMPK), and modulated the expression of genes involved in lipid metabolism towards lipid breakdown in differentiated adipocytes. In mouse model, oral administration of foenumoside B (10mg/kg/day for 6weeks) reduced HFD-induced body weight gain significantly without affecting food intake. Treatment of foenumoside B suppressed lipid accumulation in white adipose tissues and the liver, and lowered blood levels of glucose, triglycerides, ALT, and AST in HFD-induced obese mice. Consistent with the in vitro results, foenumoside B activated AMPK signaling, suppressed the expression of lipogenic genes, and enhanced the expression of lipolytic genes in vivo. Foenumoside B also blocked HFD-induced proinflammatory cytokine production in adipose tissue, suggesting its protective role against insulin resistance. Taken together, these findings demonstrate that foenumoside B represents the anti-obesity effects of L. foenum-graecum, and suggest therapeutic potential of foenumoside B in obesity and obesity-related metabolic diseases.
Authors:
Jong Bae Seo; Sang Wook Park; Sung Sik Choe; Hyun Woo Jeong; Jae Young Park; Eun-Wook Choi; Dong-Seung Seen; Jae-Yeon Jeong; Tae Gyu Lee
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-12-16
Journal Detail:
Title:  Biochemical and biophysical research communications     Volume:  -     ISSN:  1090-2104     ISO Abbreviation:  -     Publication Date:  2011 Dec 
Date Detail:
Created Date:  2011-12-26     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0372516     Medline TA:  Biochem Biophys Res Commun     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2011. Published by Elsevier Inc.
Affiliation:
R&D Center, BRN Science Co. Ltd., Biotechnology Incubation Center, Golden Helix, San 56-1, Sillim-Dong, Kwanak-Gu, Seoul 151-742, Republic of Korea.
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