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Article

MicroRNA-455-3p functions as a tumor suppressor by targeting eIF4E in prostate cancer

  • Authors:
    • Yongxiang Zhao
    • Mingyu Yan
    • Ye Yun
    • Jianguo Zhang
    • Ruimin Zhang
    • Yan Li
    • Xiangming Wu
    • Qiang Liu
    • Wei Miao
    • Haishan Jiang
  • View Affiliations / Copyright

    Affiliations: Department of Urinary Surgery of The Fourth Hospital of Baotou, Baotou, Inner Mongolia, P.R. China, The Third Affiliated Hospital, Inner Mongolia Medical University, Baotou, Inner Mongolia, P.R. China, Baotou Center for Disease Control and Prevention, Baotou, Inner Mongolia, P.R. China
  • Pages: 2449-2458
    |
    Published online on: March 13, 2017
       https://doi.org/10.3892/or.2017.5502
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Abstract

MicroRNAs (miRNAs) are strongly implicated in various cancers, including prostate cancer. Recently, microRNA-455-3p (miR-455-3p) has been shown to be aberrantly expressed in many tumor tissues, but its functions in tumorigenesis remain unknown. In this study, we investigated the role of miR-455-3p in prostate cancer. We found that miR-455-3p is markedly downregulated in prostate cancer cell lines and clinical tumor specimens. Gain-of-function and loss-of-function studies showed that miR-455-3p promotes prostate cancer cell growth both in vitro and in vivo. Bioinformatics analysis and Luciferase reporter assays demonstrated that miR-455-3p directly targets and suppresses eIF4E, the rate-limiting factor for cap-dependent translation, which plays important roles in the initiation and progression of prostate cancers. Further studies demonstrated that miR-455-3p inhibits cap-dependent translation and the proliferation of prostate cancer cells through targeting eIF4E. Taken together, our findings suggest that miR-455-3p functions as a tumor suppressor by directly targeting eIF4E in prostate carcinogenesis and may be used as a potential target for therapeutic intervention in prostate cancer.
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Copy and paste a formatted citation
Spandidos Publications style
Zhao Y, Yan M, Yun Y, Zhang J, Zhang R, Li Y, Wu X, Liu Q, Miao W, Jiang H, Jiang H, et al: MicroRNA-455-3p functions as a tumor suppressor by targeting eIF4E in prostate cancer. Oncol Rep 37: 2449-2458, 2017.
APA
Zhao, Y., Yan, M., Yun, Y., Zhang, J., Zhang, R., Li, Y. ... Jiang, H. (2017). MicroRNA-455-3p functions as a tumor suppressor by targeting eIF4E in prostate cancer. Oncology Reports, 37, 2449-2458. https://doi.org/10.3892/or.2017.5502
MLA
Zhao, Y., Yan, M., Yun, Y., Zhang, J., Zhang, R., Li, Y., Wu, X., Liu, Q., Miao, W., Jiang, H."MicroRNA-455-3p functions as a tumor suppressor by targeting eIF4E in prostate cancer". Oncology Reports 37.4 (2017): 2449-2458.
Chicago
Zhao, Y., Yan, M., Yun, Y., Zhang, J., Zhang, R., Li, Y., Wu, X., Liu, Q., Miao, W., Jiang, H."MicroRNA-455-3p functions as a tumor suppressor by targeting eIF4E in prostate cancer". Oncology Reports 37, no. 4 (2017): 2449-2458. https://doi.org/10.3892/or.2017.5502
Copy and paste a formatted citation
x
Spandidos Publications style
Zhao Y, Yan M, Yun Y, Zhang J, Zhang R, Li Y, Wu X, Liu Q, Miao W, Jiang H, Jiang H, et al: MicroRNA-455-3p functions as a tumor suppressor by targeting eIF4E in prostate cancer. Oncol Rep 37: 2449-2458, 2017.
APA
Zhao, Y., Yan, M., Yun, Y., Zhang, J., Zhang, R., Li, Y. ... Jiang, H. (2017). MicroRNA-455-3p functions as a tumor suppressor by targeting eIF4E in prostate cancer. Oncology Reports, 37, 2449-2458. https://doi.org/10.3892/or.2017.5502
MLA
Zhao, Y., Yan, M., Yun, Y., Zhang, J., Zhang, R., Li, Y., Wu, X., Liu, Q., Miao, W., Jiang, H."MicroRNA-455-3p functions as a tumor suppressor by targeting eIF4E in prostate cancer". Oncology Reports 37.4 (2017): 2449-2458.
Chicago
Zhao, Y., Yan, M., Yun, Y., Zhang, J., Zhang, R., Li, Y., Wu, X., Liu, Q., Miao, W., Jiang, H."MicroRNA-455-3p functions as a tumor suppressor by targeting eIF4E in prostate cancer". Oncology Reports 37, no. 4 (2017): 2449-2458. https://doi.org/10.3892/or.2017.5502
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