Journal of Microbiology and Biotechnology

The Korean Society for Microbiology and Biotechnology (한국미생물·생명공학회)
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LncRNA LINC01232 Enhances Proliferation, Angiogenesis, Migration and Invasion of Colon Adenocarcinoma Cells by Downregulating miR-181a-5p

  • Yu Yuan (Department of Integrative Chinese and Western Medicine Anorectal Surgery, Yichun People's Hospital) ;
  • Zhou Long (Deparment of Anorectal Surgery, Jingmen No.1 People's Hospital)
  • Received : 2022.06.17
  • Accepted : 2022.11.03
  • Published : 2023.03.28
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Abstract

LncRNAs play crucial roles in the progression of colon adenocarcinoma (COAD), but the role of LINC01232 in COAD has not received much attention. The present study was designed to explore the related mechanisms of LINC01232 in the progression of COAD. LINC01232, miR-181a-5p, p53, c-myc, Bcl-2, cyclin D1, p16, Bax, VEGF, E-cadherin, vimentin, N-cadherin and SDAD1 expressions were determined by western blot and qRT-PCR. CCK-8, tubule formation, and Transwell assays were employed to detect proliferation, angiogenesis, and migration/invasion of COAD cells, respectively. The relationship between LINC01232 and miR-181a-5p was predicted by LncBase Predicted v.2, and then verified through dual luciferase reporter gene assay. According to the results, LINC01232 was highly expressed in COAD cells and enhanced proliferation, angiogenesis, migration, and invasion of COAD cells. Downregulated LINC01232 promoted expression of p53 and p16, and inhibited c-myc, Bcl-2 and cyclin D1 expressions in COAD cells, while upregulation of LINC01232 generated the opposite effects. LINC01232 was negatively correlated with miR-181a-5p while downregulated miR181a-5p could reverse the effects of siLINC01232 on cell proliferation, angiogenesis, migration, and invasion. Similarly, miR-181a-5p mimic could also offset the effect of LINC01232 overexpression. SiLINC01232 increased the expressions of Bax and E-cadherin, and decreased the expressions of VEGF, vimentin, N-cadherin and SDAD1, which were partially attenuated by miR-181a-5p inhibitor. Collectively, LINC01232 enhances the proliferation, migration, invasion, and angiogenesis of COAD cells by decreasing miR-181a-5p expression.

Keywords

References

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