Open Access

miR-92a-3p promotes the proliferation, migration and invasion of esophageal squamous cell cancer by regulating PTEN

  • Authors:
    • Xin Li
    • Shuilong Guo
    • Li Min
    • Qingdong Guo
    • Shutian Zhang
  • View Affiliations

  • Published online on: June 27, 2019     https://doi.org/10.3892/ijmm.2019.4258
  • Pages: 973-981
  • Copyright: © Li et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

Esophageal squamous cell cancer (ESCC) has a high mortality rate. MicroRNA (miR)‑92a‑3p is considered to be a tumor promotor and an oncomiR. The aim of the present study was to investigate the effect of miR‑92a‑3p and its target gene on ESCC in terms of proliferation, migration and invasion. Higher expression of miR‑92a‑3p was detected in the tissues of patients with ESCC, compared with that in normal tissues. In addition, ESCC cell lines had a higher expression of miR‑92a‑3p compared with normal esophageal cells. A miR‑92a‑3p mimic was found to promote ESCC cell proliferation and a miR‑92a‑3p inhibitor was found to reduce ESCC cell proliferation. miR‑92a‑3p mimic transfection accelerated ESCC cell migration and invasion and decreased ESCC cell apoptosis via the Bax/Bcl‑2 pathway and cleaved caspase‑3. Phosphatase and tensin homolog deleted on chromosome 10 (PTEN) was detected as a target of miR‑92a‑3p by a dual luciferase reporter assay. The overexpression of PTEN not only inhibited ESCC proliferation, migration and invasion, but also promoted ESCC cell apoptosis. PTEN and the miR‑92a‑3p mimic inhibited and promoted ESCC proliferation, respectively, which may be associated with the PI3K/Akt pathway. The results of the study revealed that miR‑92a‑3p promoted the proliferation, migration and invasion of ESCC, and the effect of miR‑92a‑3p on ESCC was realized by regulating PTEN.
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September 2019
Volume 44 Issue 3

Print ISSN: 1107-3756
Online ISSN:1791-244X

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Copy and paste a formatted citation
APA
Li, X., Guo, S., Min, L., Guo, Q., & Zhang, S. (2019). miR-92a-3p promotes the proliferation, migration and invasion of esophageal squamous cell cancer by regulating PTEN. International Journal of Molecular Medicine, 44, 973-981. https://doi.org/10.3892/ijmm.2019.4258
MLA
Li, X., Guo, S., Min, L., Guo, Q., Zhang, S."miR-92a-3p promotes the proliferation, migration and invasion of esophageal squamous cell cancer by regulating PTEN". International Journal of Molecular Medicine 44.3 (2019): 973-981.
Chicago
Li, X., Guo, S., Min, L., Guo, Q., Zhang, S."miR-92a-3p promotes the proliferation, migration and invasion of esophageal squamous cell cancer by regulating PTEN". International Journal of Molecular Medicine 44, no. 3 (2019): 973-981. https://doi.org/10.3892/ijmm.2019.4258