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Silencing of the long noncoding RNA LINC01132 alleviates the oncogenicity of epithelial ovarian cancer by regulating the microRNA‑431‑5p/SOX9 axis

  • Authors:
    • Wei Zhu
    • Xiangming Xiao
    • Jinqin Chen
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    Affiliations: Department of Gynaecology and Obstetrics, Weifang People's Hospital, Weifang, Shandong 261401, P.R. China, Department of General Surgery, Weifang People's Hospital, Weifang, Shandong 261401, P.R. China
    Copyright: © Zhu et al. This is an open access article distributed under the terms of Creative Commons Attribution License.
  • Article Number: 151
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    Published online on: June 15, 2021
       https://doi.org/10.3892/ijmm.2021.4984
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Abstract

To date, the role of lncRNA long intergenic non‑protein‑coding RNA 1132 (LINC01132) expression in epithelial ovarian cancer (EOC) has not been explored. Thus, LINC01132 expression in EOC was assessed and the regulatory activity of LINC01132 on the malignant behaviours of EOC cells was investigated. Additionally, the molecular events that occurred downstream of LINC01132 in EOC cells were also revealed. In the present study, LINC01132 expression in EOC was verified by employing RT‑qPCR. The effects of LINC01132 on the aggressive behaviours of EOC cells were revealed utilizing multiple functional experiments. The targeting interaction among LINC01132, microRNA‑431‑5p (miR‑431‑5p) and SRY‑box 9 (SOX9) was demonstrated by RNA immunoprecipitation and luciferase reporter assay. Herein, LINC01132 was overexpressed in EOC and was significantly associated with poor patient prognosis. Functionally, cell experiments revealed that LINC01132 depletion produced cancer‑suppressive effects in EOC cells and regulated cell proliferation, migration, invasion and apoptosis in vitro. Additionally, the loss of LINC01132 attenuated tumour growth in vivo. Mechanistically, LINC01132 acted as a competing endogenous RNA by sequestering miR‑431‑5p and consequently overexpressing SOX9 in EOC cells, forming a LINC01132/miR‑431‑5p/SOX9 axis. In rescue experiments, miR‑431‑5p inhibition or SOX9 reintroduction eliminated the anti‑tumour effects of LINC01132 silencing on the pathological behaviours of EOC cells. Generally, LINC01132 exhibited oncogenic activities in EOC cells by regulating the outcome of the miR‑431‑5p/SOX9 axis, providing an effective target for EOC diagnosis, therapy and prognosis evaluation.
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Copy and paste a formatted citation
Spandidos Publications style
Zhu W, Xiao X and Chen J: Silencing of the long noncoding RNA LINC01132 alleviates the oncogenicity of epithelial ovarian cancer by regulating the microRNA‑431‑5p/SOX9 axis. Int J Mol Med 48: 151, 2021.
APA
Zhu, W., Xiao, X., & Chen, J. (2021). Silencing of the long noncoding RNA LINC01132 alleviates the oncogenicity of epithelial ovarian cancer by regulating the microRNA‑431‑5p/SOX9 axis. International Journal of Molecular Medicine, 48, 151. https://doi.org/10.3892/ijmm.2021.4984
MLA
Zhu, W., Xiao, X., Chen, J."Silencing of the long noncoding RNA LINC01132 alleviates the oncogenicity of epithelial ovarian cancer by regulating the microRNA‑431‑5p/SOX9 axis". International Journal of Molecular Medicine 48.2 (2021): 151.
Chicago
Zhu, W., Xiao, X., Chen, J."Silencing of the long noncoding RNA LINC01132 alleviates the oncogenicity of epithelial ovarian cancer by regulating the microRNA‑431‑5p/SOX9 axis". International Journal of Molecular Medicine 48, no. 2 (2021): 151. https://doi.org/10.3892/ijmm.2021.4984
Copy and paste a formatted citation
x
Spandidos Publications style
Zhu W, Xiao X and Chen J: Silencing of the long noncoding RNA LINC01132 alleviates the oncogenicity of epithelial ovarian cancer by regulating the microRNA‑431‑5p/SOX9 axis. Int J Mol Med 48: 151, 2021.
APA
Zhu, W., Xiao, X., & Chen, J. (2021). Silencing of the long noncoding RNA LINC01132 alleviates the oncogenicity of epithelial ovarian cancer by regulating the microRNA‑431‑5p/SOX9 axis. International Journal of Molecular Medicine, 48, 151. https://doi.org/10.3892/ijmm.2021.4984
MLA
Zhu, W., Xiao, X., Chen, J."Silencing of the long noncoding RNA LINC01132 alleviates the oncogenicity of epithelial ovarian cancer by regulating the microRNA‑431‑5p/SOX9 axis". International Journal of Molecular Medicine 48.2 (2021): 151.
Chicago
Zhu, W., Xiao, X., Chen, J."Silencing of the long noncoding RNA LINC01132 alleviates the oncogenicity of epithelial ovarian cancer by regulating the microRNA‑431‑5p/SOX9 axis". International Journal of Molecular Medicine 48, no. 2 (2021): 151. https://doi.org/10.3892/ijmm.2021.4984
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