Decreased expression of miR‑490‑3p in colorectal cancer predicts poor prognosis and promotes cell proliferation and invasion by targeting RAB14

  • Authors:
    • Bo Wang
    • Mujun Yin
    • Cheng Cheng
    • Hongpeng Jiang
    • Kewei Jiang
    • Zhanlong Shen
    • Yingjiang Ye
    • Shan Wang
  • View Affiliations

  • Published online on: June 19, 2018     https://doi.org/10.3892/ijo.2018.4444
  • Pages: 1247-1256
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Abstract

Growing evidence indicates a potential role for miR‑490‑3p in tumorigenesis. However, its function in colorectal carcinoma (CRC) remains undefined. In this study, miR‑490‑3p was markedly downregulated in fifty colorectal cancer tissue samples compared with the corresponding adjacent non‑cancerous specimens, by reverse transcription-quantitative polymerase chain reaction (RT-qPCR). The expression levels of miR‑490‑3p were closely associated with tumor differentiation and distant metastasis. In addition, both Kaplan-Meier and multivariate analyses indicated CRC patients with elevated miR‑490‑3p amounts had prolonged overall survival. Overexpression of miR‑490‑3p markedly reduced proliferation, colony formation and invasion in CRC cells by enhancing apoptosis and promoting G2/M phase arrest. Furthermore, ectopic expression of miR‑490‑3p resulted in decreased expression of RAB14, which was directly targeted by miR‑490‑3p, as shown by the dual-luciferase reporter gene assay. Finally, in a nude mouse model, miR‑490‑3p overexpression significantly suppressed the growth of CRC cells. The above results indicated that miR‑490‑3p might constitute a prognostic indicator and a novel molecular target for miRNA-based CRC therapy.
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September-2018
Volume 53 Issue 3

Print ISSN: 1019-6439
Online ISSN:1791-2423

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Spandidos Publications style
Wang B, Yin M, Cheng C, Jiang H, Jiang K, Shen Z, Ye Y and Wang S: Decreased expression of miR‑490‑3p in colorectal cancer predicts poor prognosis and promotes cell proliferation and invasion by targeting RAB14. Int J Oncol 53: 1247-1256, 2018.
APA
Wang, B., Yin, M., Cheng, C., Jiang, H., Jiang, K., Shen, Z. ... Wang, S. (2018). Decreased expression of miR‑490‑3p in colorectal cancer predicts poor prognosis and promotes cell proliferation and invasion by targeting RAB14. International Journal of Oncology, 53, 1247-1256. https://doi.org/10.3892/ijo.2018.4444
MLA
Wang, B., Yin, M., Cheng, C., Jiang, H., Jiang, K., Shen, Z., Ye, Y., Wang, S."Decreased expression of miR‑490‑3p in colorectal cancer predicts poor prognosis and promotes cell proliferation and invasion by targeting RAB14". International Journal of Oncology 53.3 (2018): 1247-1256.
Chicago
Wang, B., Yin, M., Cheng, C., Jiang, H., Jiang, K., Shen, Z., Ye, Y., Wang, S."Decreased expression of miR‑490‑3p in colorectal cancer predicts poor prognosis and promotes cell proliferation and invasion by targeting RAB14". International Journal of Oncology 53, no. 3 (2018): 1247-1256. https://doi.org/10.3892/ijo.2018.4444