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Article Open Access

MiR‑370 promotes apoptosis in colon cancer by directly targeting MDM4

  • Authors:
    • Xiaogang Shen
    • Xiaofei Zuo
    • Wenjin Zhang
    • Yifeng Bai
    • Xianpeng Qin
    • Nengyi Hou
  • View Affiliations / Copyright

    Affiliations: Department of Gastrointestinal Surgery, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, Chengdu, Sichuan 610041, P.R. China, Department of Clinical Medicine, Chengdu Medical College, Chengdu, Sichuan 610083, P.R. China, Department of Oncology, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, Chengdu, Sichuan 610041, P.R. China
    Copyright: © Shen et al. This is an open access article distributed under the terms of Creative Commons Attribution License.
  • Pages: 1673-1679
    |
    Published online on: December 5, 2017
       https://doi.org/10.3892/ol.2017.7524
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Abstract

MicroRNA (miR)-370 functions as a tumor suppressor or promoter in several cancers. However, the expression and biological role of miR‑370 in colon cancer remains undefined. In the present study, miR‑370 expression in both normal and malignant colon tissues was quantified by quantitative polymerase chain reaction. An in vitro cell viability and apoptosis assay and an in vitro xenograft tumor model were employed to investigate the role of miR‑370 on colon cancer growth. Furthermore, the potential direct target of miR‑370 was identified using a luciferase assay. Our results demonstrate that down‑regulation of miR‑370 expression occurs in malignant tissues and miR‑370 expression is inversely correlated with tumor grade. Moreover, we determined that miR‑370 functions as a tumor suppressor in colon cancer by inhibiting cell proliferation and promoting cell apoptosis. In addition, overexpression of miR‑370 impairs xenograft tumor growth in nude mice. Mechanistically, mouse double minute 4 (MDM4) was demonstrated to be a potential direct target of miR‑370, inducing apoptosis in colon cancer. Collectively, these findings suggest that upregulation of miR‑370 may impair colon tumor growth by directly targeting MDM4. These findings provide a new direction for the diagnosis and treatment of colon cancer.
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Copy and paste a formatted citation
Spandidos Publications style
Shen X, Zuo X, Zhang W, Bai Y, Qin X and Hou N: MiR‑370 promotes apoptosis in colon cancer by directly targeting MDM4. Oncol Lett 15: 1673-1679, 2018.
APA
Shen, X., Zuo, X., Zhang, W., Bai, Y., Qin, X., & Hou, N. (2018). MiR‑370 promotes apoptosis in colon cancer by directly targeting MDM4. Oncology Letters, 15, 1673-1679. https://doi.org/10.3892/ol.2017.7524
MLA
Shen, X., Zuo, X., Zhang, W., Bai, Y., Qin, X., Hou, N."MiR‑370 promotes apoptosis in colon cancer by directly targeting MDM4". Oncology Letters 15.2 (2018): 1673-1679.
Chicago
Shen, X., Zuo, X., Zhang, W., Bai, Y., Qin, X., Hou, N."MiR‑370 promotes apoptosis in colon cancer by directly targeting MDM4". Oncology Letters 15, no. 2 (2018): 1673-1679. https://doi.org/10.3892/ol.2017.7524
Copy and paste a formatted citation
x
Spandidos Publications style
Shen X, Zuo X, Zhang W, Bai Y, Qin X and Hou N: MiR‑370 promotes apoptosis in colon cancer by directly targeting MDM4. Oncol Lett 15: 1673-1679, 2018.
APA
Shen, X., Zuo, X., Zhang, W., Bai, Y., Qin, X., & Hou, N. (2018). MiR‑370 promotes apoptosis in colon cancer by directly targeting MDM4. Oncology Letters, 15, 1673-1679. https://doi.org/10.3892/ol.2017.7524
MLA
Shen, X., Zuo, X., Zhang, W., Bai, Y., Qin, X., Hou, N."MiR‑370 promotes apoptosis in colon cancer by directly targeting MDM4". Oncology Letters 15.2 (2018): 1673-1679.
Chicago
Shen, X., Zuo, X., Zhang, W., Bai, Y., Qin, X., Hou, N."MiR‑370 promotes apoptosis in colon cancer by directly targeting MDM4". Oncology Letters 15, no. 2 (2018): 1673-1679. https://doi.org/10.3892/ol.2017.7524
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