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Inhibitory effects of tannic acid in the early stage of 3T3-L1 preadipocytes differentiation by down-regulating PPAR gamma expression
Nie, FY (Nie, Fangyuan); Liang, Y (Liang, Yan); Xun, H (Xun, Hang); Sun, J (Sun, Jia); He, F (He, Fei); Ma, XF (Ma, Xiaofeng)
2015
发表期刊FOOD & FUNCTION
卷号6期号:3页码:894-901
摘要

Obesity is a medical condition of excess body fat negatively influencing morbidity and mortality via non-communicable disease risks. Adipogenesis, the process in which preadipocytes differentiate into adipocytes, plays a pivotal role in obesity. Our previous study proved that tannic acid (TA) showed anti-adipogenesis effect in 3T3-L1 preadipocytes. However, the precise mechanism involved in the inhibition in adipocytes differentiation by TA is unclear, and thus this is the subject of the present investigation. In this study, we determined the effect of TA on different stages of 3T3-L1 preadipocytes differentiation, and found that when treating in the early stage of differentiation, TA reduced lipid accumulation significantly. However, TA did not reduce lipid accumulation when treating in mid-and late-stages of adipocyte differentiation. To further study which gene TA had an impact on in the early stage of differentiation, we identified a number of genes associated with lipid metabolism. The results showed that compared to the control group, the mRNA levels of FAS, C/EBP alpha, and PPAR gamma were significantly decreased (p < 0.05), whereas the mRNA levels of adipsin, ap2 were increased ( p < 0.05). However, TA had no effect on mRNA levels of ACC1 and ACC2. Western blot results showed that TA down-regulated the expression of PPAR gamma, which is a major factor in preadipocyte differentiation. In addition, TA did not affect the PI3 K/AKT pathway. These results indicate that the anti-adipogenesis effect of TA involves down-regulation of PPAR. in the early stage of 3T3-L1 preadipocyte differentiation. Some potential limitations of this study should be considered. All the results in this study were based on cell experiments. However, the human bioavailability of TA is not clear. In the present study, the concentration of TA was 5 mu M; therefore, there were concerns about whether oral intake of TA could reach the effective concentrations. This important point needs to be clarified in vivo.

DOI10.1039/c4fo00871e
收录类别SCI
WOS记录号WOS:000351367900025
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被引频次:17[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.xjipc.cas.cn/handle/365002/5189
专题资源化学研究室
作者单位1.Univ Chinese Acad Sci, Coll Life Sci, Beijing 100049, Peoples R China
2.Capital Univ Phys Educ & Sports, Sch Kinesiol & Hlth, Beijing 100191, Peoples R China
3.State Forestry Adm, Int Ctr Bamboo & Rattan Acad Bioresource Utilizat, Beijing 100102, Peoples R China
4.Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, Urumqi 830011, Peoples R China
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GB/T 7714
Nie, FY ,Liang, Y ,Xun, H ,et al. Inhibitory effects of tannic acid in the early stage of 3T3-L1 preadipocytes differentiation by down-regulating PPAR gamma expression[J]. FOOD & FUNCTION,2015,6(3):894-901.
APA Nie, FY ,Liang, Y ,Xun, H ,Sun, J ,He, F ,&Ma, XF .(2015).Inhibitory effects of tannic acid in the early stage of 3T3-L1 preadipocytes differentiation by down-regulating PPAR gamma expression.FOOD & FUNCTION,6(3),894-901.
MLA Nie, FY ,et al."Inhibitory effects of tannic acid in the early stage of 3T3-L1 preadipocytes differentiation by down-regulating PPAR gamma expression".FOOD & FUNCTION 6.3(2015):894-901.
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