Kirenol inhibits adipogenesis through activation of the Wnt/ß-catenin signaling pathway in 3T3-L1 adipocytes.
Biochem Biophys Res Commun
; 445(2): 433-8, 2014 Mar 07.
Article
em En
| MEDLINE
| ID: mdl-24530909
ABSTRACT
Kirenol, a natural diterpenoid compound, has been reported to possess anti-oxidant, anti-inflammatory, anti-allergic, and anti-arthritic activities; however, its anti-adipogenic effect remains to be studied. The present study evaluated the effect of kirenol on anti-adipogenesis through the activation of the Wnt/ß-catenin signaling pathway. Kirenol prevented intracellular lipid accumulation by down-regulating key adipogenesis transcription factors [peroxisome proliferator-activated receptor γ (PPARγ), CCAAT/enhancer binding proteins α (C/EBPα), and sterol regulatory element binding protein-1c (SREBP-1c)] and lipid biosynthesis-related enzymes [fatty acid synthase (FAS) and acetyl-CoA carboxylase (ACC)], as well as adipocytokines (adiponectin and leptin). Kirenol effectively activated the Wnt/ß-catenin signaling pathway, in which kirenol up-regulated the expression of low density lipoprotein receptor related protein 6 (LRP6), disheveled 2 (DVL2), ß-catenin, and cyclin D1 (CCND1), while it inactivated glycogen synthase kinase 3ß (GSK3ß) by increasing its phosphorylation. Kirenol down-regulated the expression levels of PPARγ and C/EBPα, which were up-regulated by siRNA knockdown of ß-catenin. Overall, kirenol is capable of inhibiting the differentiation and lipogenesis of 3T3-L1 adipocytes through the activation of the Wnt/ß-catenin signaling pathway, suggesting its potential as natural anti-obesity agent.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Adipócitos
/
Diterpenos
/
Adipogenia
/
Via de Sinalização Wnt
/
Anti-Inflamatórios
Limite:
Animals
Idioma:
En
Ano de publicação:
2014
Tipo de documento:
Article