Open Access

Decreased expression of long non-coding RNA GAS5 indicates a poor prognosis and promotes cell proliferation and invasion in hepatocellular carcinoma by regulating vimentin

  • Authors:
    • Lei Chang
    • Cuicui Li
    • Tian Lan
    • Long Wu
    • Yufeng Yuan
    • Quanyan Liu
    • Zhisu Liu
  • View Affiliations

  • Published online on: December 24, 2015     https://doi.org/10.3892/mmr.2015.4716
  • Pages: 1541-1550
  • Copyright: © Chang et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

Hepatocellular carcinoma (HCC) is the third leading cause of cancer‑related mortality worldwide. Recent studies have demonstrated that long non‑coding RNAs (lncRNAs) are key in carcinogenesis. The aim of the present study was to investigate the role of lncRNA GAS5 in HCC tissues and to define the role of growth arrest‑specific 5 (GAS5) in the regulation of hepatoma cell proliferation, invasion and apoptosis. Quantitative polymerase chain reaction and in situ hybridization were performed to investigate the expression of GAS5 in tumor tissues and corresponding adjacent tissues from 50 patients with HCC. Low expression of GAS5 was significantly correlated with differentiation (P<0.010) and portal vein tumor thrombosis (P=0.001). Multivariate analysis indicated that GAS5 expression was an independent predictor for overall survival (P=0.017). Further experiments demonstrated that overexpression of GAS5 significantly suppressed the proliferation and invasion of hepatoma cells in vitro. Overexpression of GAS5 significantly promoted the apoptosis of hepatoma cells. In addition, it was demonstrated that GAS5 negatively regulates vimentin expression in vitro and in vivo. Notably, vimentin knockdown promoted GAS5‑pcDNA3.1‑inhibition of hepatoma cell proliferation. In conclusion, the present study suggests an important role of GAS5 in the molecular etiology of HCC and suggests the potential application of GAS5 in HCC therapy.

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Copy and paste a formatted citation
APA
Chang, L., Li, C., Lan, T., Wu, L., Yuan, Y., Liu, Q., & Liu, Z. (2016). Decreased expression of long non-coding RNA GAS5 indicates a poor prognosis and promotes cell proliferation and invasion in hepatocellular carcinoma by regulating vimentin. Molecular Medicine Reports, 13, 1541-1550. https://doi.org/10.3892/mmr.2015.4716
MLA
Chang, L., Li, C., Lan, T., Wu, L., Yuan, Y., Liu, Q., Liu, Z."Decreased expression of long non-coding RNA GAS5 indicates a poor prognosis and promotes cell proliferation and invasion in hepatocellular carcinoma by regulating vimentin". Molecular Medicine Reports 13.2 (2016): 1541-1550.
Chicago
Chang, L., Li, C., Lan, T., Wu, L., Yuan, Y., Liu, Q., Liu, Z."Decreased expression of long non-coding RNA GAS5 indicates a poor prognosis and promotes cell proliferation and invasion in hepatocellular carcinoma by regulating vimentin". Molecular Medicine Reports 13, no. 2 (2016): 1541-1550. https://doi.org/10.3892/mmr.2015.4716