Abstract Title:

Bisdemethoxycurcumin inhibits adipogenesis in 3T3-L1 preadipocytes and suppresses obesity in high-fat diet-fed C57BL/6 mice.

Abstract Source:

J Agric Food Chem. 2016 Jan 16. Epub 2016 Jan 16. PMID: 26777574

Abstract Author(s):

Ching-Shu Lai, Ying-Yi Chen, Pei-Sheng Lee, Kalyanam Nagabhushanam, Chi-Tang Ho, Wen-Shiung Liou, Roch-Chui Yu, Min-Hsiung Pan

Article Affiliation:

Ching-Shu Lai


Obesity is caused by excessive accumulation of body fat and is closely related to complex metabolic diseases. Adipogenesis is a key process that is required in adipocyte hypertrophy in the development of obesity. Curcumin (Cur) has been reported to inhibit adipocyte differentiation, but the inhibitory effects of other curcuminoids present in turmeric, such as demethoxycurcumin (DMC) and bisdemethoxycurcumin (BDMC), on adipogenesis have not been investigated. Here, we investigated the effects of curcuminoids on adipogenesis and the molecular mechanisms of adipocyte differentiation. Among three curcuminoids, BDMC was the most effective suppressor of lipid accumulation in adipocytes. BDMC suppressed adipogenesis in the early stage primarily through attenuation of mitotic clonal expansion (MCE). In BDMC-treated preadipocytes, cell cycle arrest at the G0/G1 phase was found after initiation of adipogenesis and was accompanied with downregulation of cyclin A, cyclin B, p21 and mitogen-activated protein kinase (MAPK) signaling. The protein levels of the adipogenic transcription factors PPARγ and C/EBPα were also reduced by BDMC treatment. Furthermore, 0.5% dietary BDMC (w/w) significantly lowered body weight gain and adipose tissue mass in high-fat diet (HFD)-fed mice. The results of H&E staining showed that dietary BDMC reduced hypertrophy in adipocytes. These results demonstrate for the first time that BDMC suppressed adipogenesis in 3T3-L1 adipocytes and prevented HFD-induced obesity. Our results suggest that BDMC has the potential to prevent obesity.

Study Type : In Vitro Study

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