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Article

lncRNA CYTOR promotes cell proliferation and tumor growth via miR‑125b/SEMA4C axis in hepatocellular carcinoma

  • Authors:
    • Qing Tian
    • Xiaodong Yan
    • Long Yang
    • Zirong Liu
    • Zheyue Yuan
    • Yamin Zhang
  • View Affiliations / Copyright

    Affiliations: Department of Hepatobiliary Surgery, Tianjin First Central Hospital, School of Medicine, Nankai University, Tianjin 300192, P.R China, Department of Hepatobiliary Surgery, First Central Clinic of Tianjin Medical University, Tianjin 300192, P.R China
  • Article Number: 796
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    Published online on: September 17, 2021
       https://doi.org/10.3892/ol.2021.13057
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Abstract

Hepatocellular carcinoma (HCC) is a common malignant tumor worldwide with high morbidity and high mortality rates. Previous studies have demonstrated that cytoskeleton regulator RNA (CYTOR) plays critical roles in the tumorigenesis of various types of cancer. The present study aimed to investigate the clinical significance, biological function and molecular mechanism of CYTOR in the progression of HCC. The expression level of CYTOR was determined by reverse transcription quantitative PCR in HCC tissues and cell lines. The biological function of CYTOR was investigated using CCK‑8 assay, EdU immunofluorescence, western blotting and TUNEL assay in vitro. A xenograft tumor model and immunohistochemistry were used to validate the role of CYTOR in vivo. The downstream targets of CYTOR and micro‑RNA (miR)‑125b were confirmed by RNA immunoprecipitation assay and luciferase reporter assays. The results demonstrated that CYTOR was significantly increased in HCC tissues compared with non‑tumor tissues and that CYTOR expression was associated with the poor prognosis of patients with HCC. Furthermore, CYTOR silencing could inhibit the proliferation and promote the apoptosis of HCC cells. CYTOR overexpression had the opposite effects. The results from in vivo xenograft demonstrated that CYTOR knockdown suppressed tumor growth. In addition, CYTOR could directly interact with and negatively regulate miR‑125b. Furthermore, semaphorin 4C (SEMA4C) was the target of miR‑125b and CYTOR regulated SEMA4C expression by modulating miR‑125b. Taken together, the findings from the present study demonstrated that CYTOR could promote cell proliferation and tumor growth by sponging miR‑125b and upregulating SEMA4C, which suggested that CYTOR may act as a potential therapeutic target in HCC.
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Copy and paste a formatted citation
Spandidos Publications style
Tian Q, Yan X, Yang L, Liu Z, Yuan Z and Zhang Y: lncRNA CYTOR promotes cell proliferation and tumor growth via miR‑125b/SEMA4C axis in hepatocellular carcinoma. Oncol Lett 22: 796, 2021.
APA
Tian, Q., Yan, X., Yang, L., Liu, Z., Yuan, Z., & Zhang, Y. (2021). lncRNA CYTOR promotes cell proliferation and tumor growth via miR‑125b/SEMA4C axis in hepatocellular carcinoma. Oncology Letters, 22, 796. https://doi.org/10.3892/ol.2021.13057
MLA
Tian, Q., Yan, X., Yang, L., Liu, Z., Yuan, Z., Zhang, Y."lncRNA CYTOR promotes cell proliferation and tumor growth via miR‑125b/SEMA4C axis in hepatocellular carcinoma". Oncology Letters 22.5 (2021): 796.
Chicago
Tian, Q., Yan, X., Yang, L., Liu, Z., Yuan, Z., Zhang, Y."lncRNA CYTOR promotes cell proliferation and tumor growth via miR‑125b/SEMA4C axis in hepatocellular carcinoma". Oncology Letters 22, no. 5 (2021): 796. https://doi.org/10.3892/ol.2021.13057
Copy and paste a formatted citation
x
Spandidos Publications style
Tian Q, Yan X, Yang L, Liu Z, Yuan Z and Zhang Y: lncRNA CYTOR promotes cell proliferation and tumor growth via miR‑125b/SEMA4C axis in hepatocellular carcinoma. Oncol Lett 22: 796, 2021.
APA
Tian, Q., Yan, X., Yang, L., Liu, Z., Yuan, Z., & Zhang, Y. (2021). lncRNA CYTOR promotes cell proliferation and tumor growth via miR‑125b/SEMA4C axis in hepatocellular carcinoma. Oncology Letters, 22, 796. https://doi.org/10.3892/ol.2021.13057
MLA
Tian, Q., Yan, X., Yang, L., Liu, Z., Yuan, Z., Zhang, Y."lncRNA CYTOR promotes cell proliferation and tumor growth via miR‑125b/SEMA4C axis in hepatocellular carcinoma". Oncology Letters 22.5 (2021): 796.
Chicago
Tian, Q., Yan, X., Yang, L., Liu, Z., Yuan, Z., Zhang, Y."lncRNA CYTOR promotes cell proliferation and tumor growth via miR‑125b/SEMA4C axis in hepatocellular carcinoma". Oncology Letters 22, no. 5 (2021): 796. https://doi.org/10.3892/ol.2021.13057
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