Long non-coding RNA-ENST00000434223 suppresses tumor progression in gastric cancer cells through the Wnt/β-catenin signaling pathway

Int J Biol Macromol. 2018 Dec;120(Pt A):491-501. doi: 10.1016/j.ijbiomac.2018.08.079. Epub 2018 Aug 21.

Abstract

Background: Gastric cancer (GC) develops from the lining of the stomach. The present study aimed to explore the effects of long non-coding RNA-ENST00000434223 (lncRNA ENST00000434223) on gastric cancer (GC) cells.

Methods: One hundred and four GC tissues and paracancerous tissues were collected from GC patients, and expression of ENST00000434223, Wnt2b, β-catenin, cyclinD1, E-cadherin, N-cadherin, vimentin, and snail was subsequently assessed. Morphological changes in cells were assessed using an inverted microscope, and expression of Bcl-2, Bax and caspase-3 was examined.

Results: We found that expression of Wnt2b, β-catenin, cyclinD1, N-cadherin, vimentin, and snail was increased in GC tissues, while expression of ENST00000434223 and E-cadherin was decreased. SGC-7901 cells were closely arranged, and expression of Wnt2b, β-catenin, CyclinD1, N-cadherin, Vimentin, snail and Bcl-2 was increased, whereas expression of ENST00000434223, E-cadherin, Bax and caspase-3 was decreased. Furthermore, the rate of apoptosis was decreased and cell proliferation, invasion and migration were increased in response to downregulation of ENST00000434223. By contrast, upregulation of ENST00000434223 exhibited the opposite effects in MKN-45 cells.

Conclusion: The results of this study provide a promising experimental basis for the treatment of gastric cancer through interventional targeting of lncRNA ENST00000434223.

Keywords: Apoptosis; Epithelial-mesenchymal transition; Gastric cancer; Invasion; Long non-coding RNA-ENST00000434223; Migration; Proliferation; Wnt/β-catenin signaling pathway.

MeSH terms

  • Adult
  • Aged
  • Aged, 80 and over
  • Apoptosis / genetics
  • Cadherins / genetics
  • Cell Line, Tumor
  • Cell Movement / genetics
  • Cell Proliferation / genetics*
  • Cyclin D1 / genetics
  • Disease Progression
  • Epithelial-Mesenchymal Transition / genetics*
  • Female
  • Gene Expression Regulation, Neoplastic / genetics
  • Glycoproteins / genetics
  • Humans
  • Male
  • Middle Aged
  • Neoplasm Invasiveness / genetics
  • Neoplasm Invasiveness / pathology
  • RNA, Long Noncoding / genetics*
  • Stomach Neoplasms / genetics*
  • Stomach Neoplasms / pathology
  • Wnt Proteins / genetics
  • beta Catenin / genetics

Substances

  • CTNNB1 protein, human
  • Cadherins
  • Glycoproteins
  • RNA, Long Noncoding
  • WNT2B protein, human
  • Wnt Proteins
  • beta Catenin
  • long noncoding RNA ENST00000434223, human
  • Cyclin D1