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The study of oleanolic acid on the estrodiol production and the fat production of mouse preadipocyte 3T3-L1 in vitro

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Abstract

The women during the menopause period have an increased tendency for the obesity, which represents the more fat production than during the premenopausal period. Although this is not beneficial overall, it could provide a compensatory source for the estrogen production for the menopausal women. So it would be meaningful to find an agent that could inhibit the fat production while does not disturb the total estrogen production by fat tissues. In the present study, the effect of oleanolic acid (OA) on the fat production and the total estrogen production of the differentiating mouse preadipocyte 3T3-L1 as well as the mechanisms behind those effects were preliminarily investigated. The cell line 3T3-L1 was chosen as the model cell because it is usually used for the research about the obesity. During the induced differentiation of 3T3-L1 cells, cells were intervened continuously with OA. The fat production was determined with the oil red staining assay and the total estrogen production was measured with the ELISA assay. Finally, the expression patterns for important genes of the fat production and the estrogen production were studied, respectively with the real-time fluorescence quantitative PCR (qPCR). The results showed that for the differentiating 3T3-L1 cells, OA could significantly inhibit the fat production and did not disturb the total estrogen production significantly. In the mechanism studies, OA was found to significantly down-regulate ACC, the key gene for fat synthesis, which could explain the inhibitory effect of OA on the fat production; OA was also found to significantly up-regulate CYP11A1, CYP17, CYP19, the key genes for the estrogen synthesis and significantly down-regulate CYP1A1, the key gene for the estrogen decomposition, which preliminarily explained the lack of the effect of OA on the total estrogen production. In conclusion, OA was found able to inhibit the fat production while maintaining the total estrogen level and the mechanisms for the above findings were preliminarily clarified, which suggests that OA may be useful to treat the menopausal obesity.

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Acknowledgments

We sincerely thank Madam Peng Wenzhen of Sichuan University for the cultured cells and the cell culturing. The National Program on Key Basic Research Project of China (973 Program, No. 2010Cb530403), Experimental Technology Program of Chengdu University of Traditional Chinese Medicine (No. 063003) and the University Foundation of Chengdu University of Traditional Chinese Medicine (No. ZRMS201248) supported this work.

Conflict of interest

We declare that we have no financial and personal relationships with other people or organizations that can inappropriately influence our work. There is no professional or other personal interest of any nature or kind in any product, service and/or company that could be construed as influencing the position presented in, or the review of, the manuscript entitled, ‘‘the study of oleanolic acid on the estradiol production and the fat production of mouse preadipocyte 3T3-L1 in vitro’’.

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Authors and Affiliations

  1. The Reproduction Laboratory of Traditional Chinese Medicine and Western Medicine, The Second Affiliated Clinical Medical School, Chengdu University of Traditional Chinese Medicine, Chengdu, 610041, Sichuan, China

    Qian Wan, Shangmian Yie & Junbei Xiang

  2. Sichuan Family Planning Research Institute, Chengdu, 610041, Sichuan, China

    Qian Wan, Hua Lu, Xia Liu, Shangmian Yie & Junbei Xiang

  3. The Second Affiliated Hospital, Chengdu University of Traditional Chinese Medicine, Chengdu, 610041, Sichuan, China

    Hua Lu

  4. The Second Affiliated Clinical Medical School, Chengdu University of Traditional Chinese Medicine, Chengdu, 610041, Sichuan, China

    Xia Liu

  5. The Affiliated Clinical Medical School, Chengdu University of Traditional Chinese Medicine, Chengdu, 610075, Sichuan, China

    Zouying Yao

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  1. Qian Wan
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  2. Hua Lu
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Correspondence to Hua Lu.

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Wan, Q., Lu, H., Liu, X. et al. The study of oleanolic acid on the estrodiol production and the fat production of mouse preadipocyte 3T3-L1 in vitro. Human Cell 28, 5–13 (2015). https://doi.org/10.1007/s13577-014-0097-8

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  • DOI: https://doi.org/10.1007/s13577-014-0097-8

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