Resveratrol inhibits the protein expression of transcription factors related adipocyte differentiation and the activity of matrix metalloproteinase in mouse fibroblast 3T3-L1 preadipocytes.
- Author:
Nam E KANG
1
;
Ae Wha HA
;
Ji Young KIM
;
Woo Kyoung KIM
Author Information
- Publication Type:Original Article
- Keywords: Adipocyte; resveratrol; transcription factor; matrix metalloproteinase; differentiation
- MeSH: Adipocytes; Animals; Carrier Proteins; Cell Proliferation; Fibroblasts; Mice; PPAR gamma; Stilbenes; Transcription Factors
- From:Nutrition Research and Practice 2012;6(6):499-504
- CountryRepublic of Korea
- Language:English
- Abstract: This study attempted to investigate the effects of resveratrol on the differentiation of adipocytes. After cells were treated with various concentrations of resveratrol (0, 10, 20, and 40 micromol/L), adipocyte proliferation, the protein expression of transcription factors, and MMPs' activities were determined. Cell proliferation was inhibited more within 4 days of incubation (P < 0.05), and lipid accumulation in adipocyte was significantly inhibited by 93.8%, 92.4% and 91.5%, respectively, after two days of 10, 20, and 40 micromol/L resveratrol treatment (P < 0.05). Six days of incubation with the three resveratrol concentrations caused a significantly decreases of 63%, 59.9%, and 25.1% GPDH activity as a dose-dependent response. The triglyceride concentration also decreased significantly with the increase of resveratrol concentration (P < 0.05). The protein expression of CCAAT/enhancer-binding protein (C/EBPbeta) was decreased significantly by 56% and 30% while PPARgamma was significantly reduced by 57% and 15% with resveratrol treatments of 20 and 40 micromol/L, respectively (P < 0.05). The protein expression of C/EBPalpha was decreased by 83%, 74%, and 38% to increased dosage levels, with significance determined for this decrease from 20 micromol/L of resveratrol. The protein expression of fatty acid binding protein (FABP4) was decreased significantly by 88%, 72%, and 46% with the increase of resveratrol concentration. The activity of MMP-2 was decreased significantly by 84%, 70%, and 63% while MMP-9 activity was decreased significantly by 74%, 62%, and 39% with the increased resveratrol concentrations of 10, 20, and 40 micromol/L, respectively (P < 0.05).