Open Access

MicroRNA-125b inhibits cell proliferation and induces cell apoptosis in esophageal squamous cell carcinoma by targeting BMF

  • Authors:
    • Yan-Xin Fan
    • Xiu-Hua Bian
    • Pu-Dong Qian
    • Zhen-Zhang Chen
    • Jing Wen
    • Yan-Hong Luo
    • Peng-Wei Yan
    • Qian Zhang
  • View Affiliations

  • Published online on: May 2, 2018     https://doi.org/10.3892/or.2018.6413
  • Pages: 61-72
  • Copyright: © Fan et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

MicroRNAs (miRNAs) have been reported to regulate the expression of genes by suppressing translation or facilitating mRNA decay. Their expression regulates a wide variety of cellular processes, including the development and progression of cancer. Esophageal squamous cell carcinoma (ESCC) is a malignant cancer with high morbidity and recurrence in Asia. In the present study, the biological function of miR-125b and its underlying mechanism in ESCC were explored. The results revealed that miR-125b expression was significantly decreased in ESCC tissues and cell lines. A decrease in miR-125b was markedly related to lymphatic metastasis in patients. Functional analysis revealed that the overexpression of miR-125b using miR-125b mimics significantly inhibited cell growth and induced cell apoptosis, and increased the G1 phase of the cell cycle in EC109 and EC9706 cells. Notably, the miR-125b inhibitors revealed the opposite effect. Additionally, overexpression of miR-125b significantly inhibited tumor growth in vivo. Furthermore, BCL-2-modifying factor (BMF) was considered to be a potential candidate target of miR-125b based on miRNA target databases. miR-125b negatively regulated BMF expression by directly binding to its 3'-untranslated region. BMF was a functional target of miR-125b in the regulation of cell proliferation, cell apoptosis and the cell cycle in EC109 and EC9706 cells. In clinical ESCC specimens, BMF expression was upregulated, and negatively correlated with that of miR-125b. In conclusion, miR-125b had an antitumor role in ESCC cells mediated by targeting BMF, which can be potentially useful for tumorigenesis in ESCC.
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July-2018
Volume 40 Issue 1

Print ISSN: 1021-335X
Online ISSN:1791-2431

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Spandidos Publications style
Fan Y, Bian X, Qian P, Chen Z, Wen J, Luo Y, Yan P and Zhang Q: MicroRNA-125b inhibits cell proliferation and induces cell apoptosis in esophageal squamous cell carcinoma by targeting BMF. Oncol Rep 40: 61-72, 2018
APA
Fan, Y., Bian, X., Qian, P., Chen, Z., Wen, J., Luo, Y. ... Zhang, Q. (2018). MicroRNA-125b inhibits cell proliferation and induces cell apoptosis in esophageal squamous cell carcinoma by targeting BMF. Oncology Reports, 40, 61-72. https://doi.org/10.3892/or.2018.6413
MLA
Fan, Y., Bian, X., Qian, P., Chen, Z., Wen, J., Luo, Y., Yan, P., Zhang, Q."MicroRNA-125b inhibits cell proliferation and induces cell apoptosis in esophageal squamous cell carcinoma by targeting BMF". Oncology Reports 40.1 (2018): 61-72.
Chicago
Fan, Y., Bian, X., Qian, P., Chen, Z., Wen, J., Luo, Y., Yan, P., Zhang, Q."MicroRNA-125b inhibits cell proliferation and induces cell apoptosis in esophageal squamous cell carcinoma by targeting BMF". Oncology Reports 40, no. 1 (2018): 61-72. https://doi.org/10.3892/or.2018.6413