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Article

Upregulation of lncRNA Sox2ot indicates a poor prognosis for patients with hepatocellular carcinoma and promotes cell invasion

  • Authors:
    • Ji Sun
    • Xiaomou Wei
    • Li Xu
  • View Affiliations / Copyright

    Affiliations: Department of Traditional Chinese Medicine, Zhoupu Hospital Affiliated to Shanghai University of Medicine and Health Sciences, Shanghai 201318, P.R. China, Clinical Laboratory, The Fourth Affiliated Hospital of Guangxi Medical University Liuzhou Work's Hospital, Liuzhou, Guangxi 545005, P.R. China, Department of Respiratory Medicine, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong 250021, P.R. China
  • Pages: 1189-1195
    |
    Published online on: May 16, 2018
       https://doi.org/10.3892/ol.2018.8725
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Abstract

Long non‑coding RNA Sox2 overlapping transcript (lncRNA Sox2ot) expression has been demonstrated to be upregulated in a number of types of tumor, and may act as an oncogene. The present study aimed to evaluate the clinical role of lncRNA Sox2ot and its association with the epithelial‑mesenchymal transition in hepatocellular carcinoma (HCC). Reverse transcription‑quantitative polymerase chain reaction (RT‑qPCR) was performed to determine the expression of lncRNA Sox2ot in 86 cases of HCC tissues and adjacent non‑tumor tissues. Kaplan‑Meier and log‑rank test was used to analyze the association between lncRNA Sox2ot expression and disease‑free (DFS) or overall (OS) survival time. In addition, the capacity of HCC cells with lncRNA Sox2ot knockdown for invasion was evaluated via transwell cell invasion assays. RT‑qPCR and western blot analyses were also performed to determine the mRNA and protein expression of Twist1, E‑cadherin and N‑cadherin in the HCC cells. It was indicated that lncRNA Sox2ot expression levels were significantly higher in HCC tissues compared with adjacent non‑tumor tissues. Increased expression levels of lncRNA Sox2ot were associated with the tumor size, the tumor number and vein invasion in patients with HCC. An association was observed between lncRNA Sox2ot and the DFS and OS of patients with HCC. Furthermore, it was determined that cell invasion was inhibited following the siRNA knockdown of lncRNA Sox2ot in MHCC97H and SMCC‑7721 cells via transwell cell invasion assays. Furthermore, it was demonstrated that knockdown of lncRNA Sox2ot downregulated the mRNA and protein expression of Twist1 and N‑cadherin, but upregulated the E‑cadherin expression levels in MHCC97H and SMCC‑7721 cells. Thus, it was indicated that lncRNA Sox2ot may be a novel predictive biomarker and a potential therapeutic target for HCC.
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Copy and paste a formatted citation
Spandidos Publications style
Sun J, Wei X and Xu L: Upregulation of lncRNA Sox2ot indicates a poor prognosis for patients with hepatocellular carcinoma and promotes cell invasion. Oncol Lett 16: 1189-1195, 2018.
APA
Sun, J., Wei, X., & Xu, L. (2018). Upregulation of lncRNA Sox2ot indicates a poor prognosis for patients with hepatocellular carcinoma and promotes cell invasion. Oncology Letters, 16, 1189-1195. https://doi.org/10.3892/ol.2018.8725
MLA
Sun, J., Wei, X., Xu, L."Upregulation of lncRNA Sox2ot indicates a poor prognosis for patients with hepatocellular carcinoma and promotes cell invasion". Oncology Letters 16.1 (2018): 1189-1195.
Chicago
Sun, J., Wei, X., Xu, L."Upregulation of lncRNA Sox2ot indicates a poor prognosis for patients with hepatocellular carcinoma and promotes cell invasion". Oncology Letters 16, no. 1 (2018): 1189-1195. https://doi.org/10.3892/ol.2018.8725
Copy and paste a formatted citation
x
Spandidos Publications style
Sun J, Wei X and Xu L: Upregulation of lncRNA Sox2ot indicates a poor prognosis for patients with hepatocellular carcinoma and promotes cell invasion. Oncol Lett 16: 1189-1195, 2018.
APA
Sun, J., Wei, X., & Xu, L. (2018). Upregulation of lncRNA Sox2ot indicates a poor prognosis for patients with hepatocellular carcinoma and promotes cell invasion. Oncology Letters, 16, 1189-1195. https://doi.org/10.3892/ol.2018.8725
MLA
Sun, J., Wei, X., Xu, L."Upregulation of lncRNA Sox2ot indicates a poor prognosis for patients with hepatocellular carcinoma and promotes cell invasion". Oncology Letters 16.1 (2018): 1189-1195.
Chicago
Sun, J., Wei, X., Xu, L."Upregulation of lncRNA Sox2ot indicates a poor prognosis for patients with hepatocellular carcinoma and promotes cell invasion". Oncology Letters 16, no. 1 (2018): 1189-1195. https://doi.org/10.3892/ol.2018.8725
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