HNF1A‑AS1 promotes growth and metastasis of esophageal squamous cell carcinoma by sponging miR‑214 to upregulate the expression of SOX-4

  • Authors:
    • Guannan Wang
    • Wugan Zhao
    • Xianzheng Gao
    • Dandan Zhang
    • Ye Li
    • Yanping Zhang
    • Wencai Li
  • View Affiliations

  • Published online on: June 8, 2017     https://doi.org/10.3892/ijo.2017.4034
  • Pages: 657-667
Metrics: Total Views: 0 (Spandidos Publications: | PMC Statistics: )
Total PDF Downloads: 0 (Spandidos Publications: | PMC Statistics: )


Abstract

Esophageal squamous cell carcinoma (ESCC) is one of the most common malignancies in the world, marked by dysphagia and weight loss, bringing great suffering to patients. HNF1A‑AS1 (HAS1), a long non-coding RNA (lncRNA), has been identified prevalently involved in various human cancers. However, the exact effects and molecular mechanisms of HAS1 in ESCC progression are still elusive. In this study, upregulated expression of HAS1 was detected in ESCC tissues and four human ESCC cell lines (KYSE70, KYSE450, EC109 and EC970) compared with normal tissues and cell lines. Small interfering RNA (siRNA)-mediated knockdown of HAS1 largely suppressed cell proliferation and promoted cell apoptosis in KYSE70 and EC109 cells. The decreased expression of proliferation marker proteins and elevated level of apoptosis marker proteins further verified that HAS1‑siRNA suppressed cell viability in ESCC cells. Besides, the silence of HAS1 strongly reduced the wound closing rate and the number of invasive cells compared with control group. HAS1-siRNA also restrained the expression of migration marker proteins matrix metalloproteinase-9 (MMP-9) and vascular endothelial cell growth factor (VEGF). In addition, miR‑214 was predicted as a direct target of HAS1 by bioinformatics analysis. Downregulated expression of miR‑214 was elevated in KYSE70 and EC109 cells transfected with HAS1-siRNA. Subsequently, elevated expression of miR‑214 was suppressed by co-transfecting with miR‑214 inhibitor in EC109 cells pretreated with HAS1-siRNA. The result of luciferase activity assay showed that luciferase activity was strongly weakened by the combination of LncR-HAS1 WT and miR‑214 mimic. Moreover, the expression of SOX-4, a predicted target gene of miR‑214, was suppressed by HAS1-siRNA and was increased by miR‑214 inhibitor. HAS1-siRNA counteracted the effect of miR‑214 inhibitor on cell viability and mobility in EC109 cells. Finally, the in vivo experiment revealed that HAS1-siRNA abated the role of miR‑214 inhibitor in promoting tumor growth and metastasis. miR-214 also mediated the effect of HAS1 on upregulating the expression of SOX-4 in vivo. Taken together, our study indicated a HAS1-miR‑214-SOX-4 pathway in regulating the growth and metastasis of ESCC, providing a promising target for ESCC therapy.
View Figures
View References

Related Articles

Journal Cover

August-2017
Volume 51 Issue 2

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

Sign up for eToc alerts

Recommend to Library

Copy and paste a formatted citation
x
Spandidos Publications style
Wang G, Zhao W, Gao X, Zhang D, Li Y, Zhang Y and Li W: HNF1A‑AS1 promotes growth and metastasis of esophageal squamous cell carcinoma by sponging miR‑214 to upregulate the expression of SOX-4. Int J Oncol 51: 657-667, 2017
APA
Wang, G., Zhao, W., Gao, X., Zhang, D., Li, Y., Zhang, Y., & Li, W. (2017). HNF1A‑AS1 promotes growth and metastasis of esophageal squamous cell carcinoma by sponging miR‑214 to upregulate the expression of SOX-4. International Journal of Oncology, 51, 657-667. https://doi.org/10.3892/ijo.2017.4034
MLA
Wang, G., Zhao, W., Gao, X., Zhang, D., Li, Y., Zhang, Y., Li, W."HNF1A‑AS1 promotes growth and metastasis of esophageal squamous cell carcinoma by sponging miR‑214 to upregulate the expression of SOX-4". International Journal of Oncology 51.2 (2017): 657-667.
Chicago
Wang, G., Zhao, W., Gao, X., Zhang, D., Li, Y., Zhang, Y., Li, W."HNF1A‑AS1 promotes growth and metastasis of esophageal squamous cell carcinoma by sponging miR‑214 to upregulate the expression of SOX-4". International Journal of Oncology 51, no. 2 (2017): 657-667. https://doi.org/10.3892/ijo.2017.4034