Linc‑pint overexpression inhibits the growth of gastric tumors by downregulating HIF‑1α

  • Authors:
    • Lei Hong
    • Junyan Wang
    • Haijuan Wang
    • Suju Wei
    • Fan Zhang
    • Jing Han
    • Yan Liu
    • Minting Ma
    • Chengyuan Liu
    • Yu Xu
    • Wei Liu
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  • Published online on: July 25, 2019     https://doi.org/10.3892/mmr.2019.10531
  • Pages: 2875-2881
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Abstract

Long intergenic non‑protein coding RNA, p53 induced transcript (Linc‑pint) has been reported to be downregulated in various cancer cell lines; however, its expression profile and role in gastric cancer remains unknown. The present study aimed to investigate the involvement of Linc‑pint in gastric cancer. Through quantitative polymerase chain reaction, western blotting and viability assays, it was observed that Linc‑pint expression was significantly downregulated in gastric biopsies from patients with gastric cancer, compared with healthy controls. Conversely, the expression of hypoxia‑inducible factor‑1α (HIF‑1α) mRNA was significantly upregulated in patients with gastric cancer compared with in healthy controls. Using a variety of statistical inference tests, including receiver operating characteristic curve and correlation analyses, it was determined that the expression levels of Linc‑pint and HIF‑1α exhibited a significantly negative correlation in patients with gastric cancer but not in healthy controls. Linc‑pint expression was significantly and inversely associated with tumor size but not tumor metastasis. Linc‑pint overexpression inhibited the proliferation of gastric cancer cells, whereas treatment with exogenous HIF‑1α promoted proliferation. Linc‑pint overexpression downregulated the expression of HIF‑1α, whereas exogenous HIF‑1α did not significantly alter Linc‑pint expression. Furthermore, treatment with exogenous HIF‑1α suppressed the inhibitory effects of Linc‑pint overexpression on the proliferation of gastric cancer cells. In conclusion, overexpression of Linc‑pint may inhibit the growth of gastric tumors via downregulation of HIF‑1α.
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September 2019
Volume 20 Issue 3

Print ISSN: 1791-2997
Online ISSN:1791-3004

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APA
Hong, L., Wang, J., Wang, H., Wei, S., Zhang, F., Han, J. ... Liu, W. (2019). Linc‑pint overexpression inhibits the growth of gastric tumors by downregulating HIF‑1α. Molecular Medicine Reports, 20, 2875-2881. https://doi.org/10.3892/mmr.2019.10531
MLA
Hong, L., Wang, J., Wang, H., Wei, S., Zhang, F., Han, J., Liu, Y., Ma, M., Liu, C., Xu, Y., Liu, W."Linc‑pint overexpression inhibits the growth of gastric tumors by downregulating HIF‑1α". Molecular Medicine Reports 20.3 (2019): 2875-2881.
Chicago
Hong, L., Wang, J., Wang, H., Wei, S., Zhang, F., Han, J., Liu, Y., Ma, M., Liu, C., Xu, Y., Liu, W."Linc‑pint overexpression inhibits the growth of gastric tumors by downregulating HIF‑1α". Molecular Medicine Reports 20, no. 3 (2019): 2875-2881. https://doi.org/10.3892/mmr.2019.10531