title: Berberine reduces the expression of adipogenic enzymes and inflammatory molecules of 3T3-L1 adipocyte.
abstract: Berberine (BBR), an isoquinoline alkaloid, has a wide range of pharmacological effects, yet its exact mechanism is unknown. In order to understand the anti-adipogenic effect of BBR, we studied the change of expression of several adipogenic enzymes of 3T3-L1 cells by BBR treatment. First, we measured the change of leptin and glycerol in the medium of 3T3-L1 cells treated with 1 micrometer, 5 micrometer and 10 micrometer concentrations of BBR. We also measured the changes of adipogenic and lipolytic factors of 3T3-L1. In 3T3-L1 cells, both leptin and adipogenic factors (SREBP-1c, C/EBP-alpha, PPAR-gamma, fatty acid synthase, acetyl-CoA carboxylase, acyl-CoA synthase and lipoprotein lipase) were reduced by BBR treatment. Glycerol secretion was increased, whereas expression of lipolytic enzymes (hormone-sensitive lipase and perilipin) mRNA was slightly decreased. Next, we measured the change of inflammation markers of 3T3-L1 cells by BBR treatment. This resulted in the down-regulation of mRNA level of inflammation markers such as TNF-alpha, IL-6, C- reactive protein and haptoglobin. Taken together, our data shows that BBR has both anti-adipogenic and anti-inflammatory effects on 3T3-L1 adipocytes, and the anti-adipogenic effect seems to be due to the down-regulation of adipogenic enzymes and transcription factors.
authors.affiliation: School of Life and Food Sciences, Handong Global University, Pohang 791-708, Korea.
authors.forename: Bong-Hyuk
authors.initials: BH
authors.lastname: Choi
authors.forename: In-Sook
authors.initials: IS
authors.lastname: Ahn
authors.forename: Yu-Hee
authors.initials: YH
authors.lastname: Kim
authors.forename: Ji-Won
authors.initials: JW
authors.lastname: Park
authors.forename: So-Young
authors.initials: SY
authors.lastname: Lee
authors.forename: Chang-Kee
authors.initials: CK
authors.lastname: Hyun
authors.forename: Myoung-Sool
authors.initials: MS
authors.lastname: Do
mesh_terms: D041721:3T3-L1 Cells; D017667:Adipocytes / Q000187:drug effects* / Q000201:enzymology / Q000378:metabolism*; D050156:Adipogenesis / Q000187:drug effects / Q000235:genetics; D000818:Animals; D001599:Berberine / Q000494:pharmacology*; D016207:Cytokines / Q000235:genetics; D005786:Gene Expression Regulation / Q000187:drug effects*; D005990:Glycerol / Q000378:metabolism; D007249:Inflammation / Q000235:genetics; D018836:Inflammation Mediators / Q000378:metabolism*; D020738:Leptin / Q000378:metabolism; D051379:Mice; D012333:RNA, Messenger / Q000235:genetics / Q000378:metabolism
chemical_list: D016207:Cytokines; D018836:Inflammation Mediators; D020738:Leptin; D012333:RNA, Messenger; D001599:Berberine; D005990:Glycerol