miR-203 inhibits cell growth and regulates G1/S transition by targeting Bmi-1 in myeloma cells

  • Authors:
    • Shun‑Quan Wu
    • Wen‑Yan Niu
    • Ya‑Ping Li
    • Hao‑Bo Huang
    • Rong Zhan
  • View Affiliations

  • Published online on: October 12, 2016     https://doi.org/10.3892/mmr.2016.5832
  • Pages: 4795-4801
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Abstract

The oncogene B-cell-specific Moloney murine leukemia virus insertion site‑1 (Bmi‑1) is overexpressed in multiple myeloma (MM). Our previous study demonstrated that Bmi‑1 silencing sensitized MM cells to bortezomib. Translational regulation has emerged as a prominent underlying mechanism of Bmi‑1 regulation, particularly via microRNA targeting. The present study determined that Bmi‑1 may be directly targeted by miR‑203 using a luciferase assay. In addition, enforced expression of miR-203 led to significant downregulation of Bmi‑1 protein and mRNA expression levels. Furthermore, restoration of miR-203 significantly inhibited cell growth and G1/S transition in MM cells. miR‑203 was downregulated in MM patients, and a negative correlation between the expression of miR‑203 and Bmi‑1 was observed. The results of the present study indicated that miR‑203 exerts growth‑inhibiting effects in MM through the suppression of Bmi‑1 expression. In conclusion, the present study demonstrated that Bmi‑1 is a direct functional target of miR-203 in MM.
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November-2016
Volume 14 Issue 5

Print ISSN: 1791-2997
Online ISSN:1791-3004

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Spandidos Publications style
Wu SQ, Niu WY, Li YP, Huang HB and Zhan R: miR-203 inhibits cell growth and regulates G1/S transition by targeting Bmi-1 in myeloma cells. Mol Med Rep 14: 4795-4801, 2016
APA
Wu, S., Niu, W., Li, Y., Huang, H., & Zhan, R. (2016). miR-203 inhibits cell growth and regulates G1/S transition by targeting Bmi-1 in myeloma cells. Molecular Medicine Reports, 14, 4795-4801. https://doi.org/10.3892/mmr.2016.5832
MLA
Wu, S., Niu, W., Li, Y., Huang, H., Zhan, R."miR-203 inhibits cell growth and regulates G1/S transition by targeting Bmi-1 in myeloma cells". Molecular Medicine Reports 14.5 (2016): 4795-4801.
Chicago
Wu, S., Niu, W., Li, Y., Huang, H., Zhan, R."miR-203 inhibits cell growth and regulates G1/S transition by targeting Bmi-1 in myeloma cells". Molecular Medicine Reports 14, no. 5 (2016): 4795-4801. https://doi.org/10.3892/mmr.2016.5832