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Effect of long non-coding RNA AOC4P on gastrointestinal stromal tumor cells

Authors Hu JC, Wang Q, Jiang LX, Cai L, Zhai HY, Yao ZW, Zhang ML, Feng Y

Received 17 May 2018

Accepted for publication 5 July 2018

Published 26 September 2018 Volume 2018:11 Pages 6259—6269

DOI https://doi.org/10.2147/OTT.S174524

Checked for plagiarism Yes

Review by Single-blind

Peer reviewers approved by Dr Colin Mak

Peer reviewer comments 2

Editor who approved publication: Dr Sanjeev Srivastava


Jin-Chen Hu,1,* Quan Wang,2,* Li-Xin Jiang,1 Li Cai,3 Hui-Yuan Zhai,1 Zeng-Wu Yao,1 Meng-Lai Zhang,1 Ye Feng4

1Department of Gastrointestinal Surgery, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, China; 2Department of Gastrointestinal and Anal Surgery, The First Hospital of Jilin University, Changchun, China; 3Department of Pathology, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, China; 4Department of Gastrointestinal Colorectal and Anal Surgery, China-Japan Union Hospital of Jilin University, Changchun, China

*These authors contributed equally to this work

Objective:
In this research, we explored the effect of long non-coding RNA (lncRNA) AOC4P on gastrointestinal stromal tumor (GIST) cells.
Materials and methods: The expression of lncRNA AOC4P in tissues was detected by real-time PCR (RT-PCR). The epithelial–mesenchymal transition (EMT)-related proteins in tissues were analyzed by Western blot. The experiment included negative control group (CN), silence AOC4P group (si AOC4P), and silence negative control group (si CT). RT-PCR, MTT, Scratch, Transwell, and Annexin V-FITC methods were used to detect the expression of lncRNA AOC4P, cell proliferation, cell migration ability, cell invasion ability, and apoptosis, respectively. The EMT-related proteins including TGF-β, ZEB1, Vimentin, Snail, and E-cadherin were analyzed by Western blot.
Results: The expression of lncRNA AOC4P and the expression of EMT-related proteins in high-risk GISTs were higher than that in low- and intermediate-risk GISTs (P<0.05). It was revealed that cell proliferative migration and invasive ability in si AOC4P group was decreased than that in CN and si CT groups (P<0.05), and cell apoptosis in si AOC4P group was higher than that in si CT group. The results of Western blot demonstrated that the expression of TGF-β1, ZEB1, Vimentin, and Snail in si AOC4P group were lower than that in si CT and CN group (P<0.05), and the expression of E-cadherin in si AOC4P group was higher than that in si CT and CN group (P<0.05).

Keywords: AOC4P, epithelial–mesenchymal transition, gastrointestinal stromal tumors, long non-coding RNA

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