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Article

SREBP‑2 expression pattern contributes to susceptibility of Mongolian gerbils to hypercholesterolemia

  • Authors:
    • Changlong Li
    • Honggang Guo
    • Fangwei Dai
    • Xueyun Huo
    • Zhenkun Li
    • Shuangyue Zhang
    • Rui Fu
    • Zhengming He
    • Meng Gu
    • Xiaoyan Du
    • Zhenwen Chen
  • View Affiliations / Copyright

    Affiliations: Department of Medical Genetics and Developmental Biology, School of Basic Medical Science, Capital Medical University, Beijing 100069, P.R. China, Zhejiang Center of Laboratory Animals, Zhejiang Academy of Medical Sciences, Hangzhou, Zhejiang 310013, P.R. China, Institute for Laboratory Animal Resources, National Institutes for Food and Drug Control, Beijing 100050, P.R. China
  • Pages: 3288-3296
    |
    Published online on: December 6, 2017
       https://doi.org/10.3892/mmr.2017.8195
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Abstract

Gerbils are susceptible to dietary cholesterol and prone to hypercholesterolemia and non‑alcoholic fatty liver disease. The present study aimed to explore the role of sterol regulatory element binding protein (SREBP)‑2 and 3‑hydroxy‑3‑methylglutaryl CoA reductase (HMGCR) in hypercholesterolemia susceptibility in gerbils. Male gerbils were fed the normal diet or a high‑fat diet (HFD) for 2 weeks, or the HFD for 2 weeks followed with the normal diet for an additional 2 weeks. Serum lipid levels and hepatic fat deposition were measured, and mRNA and protein levels of SREBP‑2 and HMGCR were evaluated by quantitative polymerase chain reaction and Western blotting. In addition, the role of SREBP‑2 function in cholesterol synthesis from the gerbil primary hepatic cells was also investigated by modulation of SERBP‑2 expression via the transfection of SREBP‑2 overexpression and knockdown plasmids, respectively. The data demonstrated that the total cholesterol and low‑density lipoprotein cholesterol levels in the gerbil serum samples were rapidly and significantly elevated in response to HFD. In addition, the effect of the HFD was rapidly attenuated in the gerbils following a return to the normal diet. HMGCR expression and activation were not altered by dietary cholesterol consumption in the livers from the gerbils in model or recovery groups. HMGCR expression and activation were effectively regulated in cultured hepatic cells from the gerbils. These results indicated that the activation of SREBP‑2 to HMGCR was not terminated in gerbil livers during cholesterol intake. Therefore, stable SREBP‑2 expression contributes to the susceptibility of gerbils to hypercholesterolemia.
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Copy and paste a formatted citation
Spandidos Publications style
Li C, Guo H, Dai F, Huo X, Li Z, Zhang S, Fu R, He Z, Gu M, Du X, Du X, et al: SREBP‑2 expression pattern contributes to susceptibility of Mongolian gerbils to hypercholesterolemia. Mol Med Rep 17: 3288-3296, 2018.
APA
Li, C., Guo, H., Dai, F., Huo, X., Li, Z., Zhang, S. ... Chen, Z. (2018). SREBP‑2 expression pattern contributes to susceptibility of Mongolian gerbils to hypercholesterolemia. Molecular Medicine Reports, 17, 3288-3296. https://doi.org/10.3892/mmr.2017.8195
MLA
Li, C., Guo, H., Dai, F., Huo, X., Li, Z., Zhang, S., Fu, R., He, Z., Gu, M., Du, X., Chen, Z."SREBP‑2 expression pattern contributes to susceptibility of Mongolian gerbils to hypercholesterolemia". Molecular Medicine Reports 17.2 (2018): 3288-3296.
Chicago
Li, C., Guo, H., Dai, F., Huo, X., Li, Z., Zhang, S., Fu, R., He, Z., Gu, M., Du, X., Chen, Z."SREBP‑2 expression pattern contributes to susceptibility of Mongolian gerbils to hypercholesterolemia". Molecular Medicine Reports 17, no. 2 (2018): 3288-3296. https://doi.org/10.3892/mmr.2017.8195
Copy and paste a formatted citation
x
Spandidos Publications style
Li C, Guo H, Dai F, Huo X, Li Z, Zhang S, Fu R, He Z, Gu M, Du X, Du X, et al: SREBP‑2 expression pattern contributes to susceptibility of Mongolian gerbils to hypercholesterolemia. Mol Med Rep 17: 3288-3296, 2018.
APA
Li, C., Guo, H., Dai, F., Huo, X., Li, Z., Zhang, S. ... Chen, Z. (2018). SREBP‑2 expression pattern contributes to susceptibility of Mongolian gerbils to hypercholesterolemia. Molecular Medicine Reports, 17, 3288-3296. https://doi.org/10.3892/mmr.2017.8195
MLA
Li, C., Guo, H., Dai, F., Huo, X., Li, Z., Zhang, S., Fu, R., He, Z., Gu, M., Du, X., Chen, Z."SREBP‑2 expression pattern contributes to susceptibility of Mongolian gerbils to hypercholesterolemia". Molecular Medicine Reports 17.2 (2018): 3288-3296.
Chicago
Li, C., Guo, H., Dai, F., Huo, X., Li, Z., Zhang, S., Fu, R., He, Z., Gu, M., Du, X., Chen, Z."SREBP‑2 expression pattern contributes to susceptibility of Mongolian gerbils to hypercholesterolemia". Molecular Medicine Reports 17, no. 2 (2018): 3288-3296. https://doi.org/10.3892/mmr.2017.8195
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