Email updates

Keep up to date with the latest news and content from BMC Complementary and Alternative Medicine and BioMed Central.

Open Access Research article

Centipede grass exerts anti-adipogenic activity through inhibition of C/EBPβ, C/EBPα, and PPARγ expression and the AKT signaling pathway in 3T3-L1 adipocytes

Hyoung Joon Park1, Byung Yeoup Chung2, Min-Kwon Lee1, Yuno Song1, Seung Sik Lee2, Gyo Moon Chu3, Suk-Nam Kang3, Young Min Song3, Gon-Sup Kim1 and Jae-Hyeon Cho14*

Author Affiliations

1 Institute of Life Science, College of Veterinary Medicine, Gyeongsang National University, Jinju, Korea

2 Advanced Radiation Technology Institute, Korea Atomic Energy Institute, Jeongeup, Korea

3 Dept. of Animal Science & Biotechnology, Gyeongnam National University of Science and Technology, Jinju, Korea

4 Department of Anatomy and Developmental Biology, College of Veterinary Medicine, Gyeongsang National University, 900 Gajwa-dong, Jinju-city 660-701, Korea

For all author emails, please log on.

BMC Complementary and Alternative Medicine 2012, 12:230  doi:10.1186/1472-6882-12-230

Published: 26 November 2012

Abstract

Background

Centipede grass (CG) originates from China and South America and is reported to contain several C-glycosyl flavones and phenolic constituents, including maysin and luteolin derivatives. This study aimed to investigate, for the first time, the antiobesity activity of CG and its potential molecular mechanism in 3T3-L1 cells.

Methods

To study the effect of CG on adipogenesis, differentiating 3T3-L1 cells were treated every day with CG at various concentrations (0–100 μg/ml) for six days. Oil-red O staining and triglyceride content assay were performed to determine the lipid accumulation in 3T3-L1 cells. The expression of mRNAs or proteins associated with adipogenesis was measured using RT-PCR and Western blotting analysis. We examined the effect of CG on level of phosphorylated Akt in 3T3-L1 cells treated with CG at various concentration s during adipocyte differentiation.

Results

Differentiation was investigated with an Oil-red O staining assay using CG-treated 3T3-L1 adipocytes. We found that CG suppressed lipid droplet formation and adipocyte differentiation in 3T3-L1 cells in a dose-dependent manner. Treatment of the 3T3-L1 adipocytes with CG resulted in an attenuation of the expression of adipogenesis-related factors and lipid metabolic genes. The expression of C/EBPα and PPARγ, the central transcriptional regulators of adipogenesis, was decreased by the treatment with CG. The expression of genes involved in lipid metabolism, aP2 were significantly inhibited following the CG treatment. Moreover, the CG treatment down-regulated the phosphorylation levels of Akt and GSK3β.

Conclusions

Taken collectively, these data indicated that CG exerts antiadipogenic activity by inhibiting the expression of C/EBPβ, C/EBPα, and PPARγ and the Akt signaling pathway in 3T3-L1 adipocytes.