LncRNA UNC5B-AS1对肺癌细胞黏附、侵袭及迁移的影响及其机制*

doi:10.12047/j.cjap.5993.2020.130

中国应用生理学杂志 ›› 2020, Vol. 36 ›› Issue (6): 622-627.doi: 10.12047/j.cjap.5993.2020.130

LncRNA UNC5B-AS1对肺癌细胞黏附、侵袭及迁移的影响及其机制^*

谭建军¹, 隆姝孜², 张涛^2△

1.重庆三峡中心医院肿瘤科, 重庆 404000;
2.重庆医科大学第一附属医院肿瘤科, 重庆 404000

收稿日期:2019-12-23 修回日期:2020-09-09 出版日期:2020-11-28 发布日期:2021-03-15
通讯作者: ^△Tel: 13896985877; E-mail: tumorzzt@163.com
基金资助:
^*重庆市卫计委医学科研项目(2017MSXM005)

Effects of LncRNA UNC5B-AS1 on adhesion, invasion and migration of lung cancer cells and its mechanism

TAN Jian-Jun¹, LONG Shu-Zi², ZHANG Tao^2△

1. Department of Oncology, Chongqing Three Gorges Central Hospital, Chongqing 404000;
2. Department of Oncology, First Affiliated Hospital of Chongqing Medical University of Chongqing, Chongqing 404000, China

Received:2019-12-23 Revised:2020-09-09 Online:2020-11-28 Published:2021-03-15

摘要/Abstract

摘要： 目的:探讨长链非编码RNA(lncRNA)UNC5B-AS1调控miR-218-5p的表达影响肺癌细胞黏附、侵袭和迁移及其作用机制。方法:选取2017年6月至2019年6月在重庆三峡中心医院肿瘤科经手术切除的20例肺癌患者癌组织和对应癌旁组织标本,采用实时荧光定量PCR(qRT-PCR)检测肺癌组织和癌旁组织及其支气管上皮细胞HBE和不同肺癌细胞A549、H1437、H1975、H1299和H460中UNC5B-AS1的表达。将UNC5B-AS1 siRNA转染至肺癌A549细胞,采用黏附实验、Transwell侵袭实验及划痕实验检测下调UNC5B-AS1对A549细胞黏附、侵袭和迁移能力的影响;qRT-PCR和双荧光素酶报告基因检测实验鉴定UNC5B-AS1对miR-218-5p的靶向调控关系;Western blot检测上皮间质转化(EMT)相关蛋白表达情况。结果:肺癌组织和细胞中UNC5B-AS1表达显著高于癌旁组织和支气管上皮细胞(P＜0.05),UNC5B-AS1在肺癌A549细胞中的表达量最高(P＜0.05)。下调UNC5B-AS1的表达能够抑制A549细胞黏附、侵袭和迁移能力(P＜0.05)。qRT-PCR和双荧光素酶报告基因检测结果表明UNC5B-AS1能靶向调控miR-218-5p的表达。下调UNC5B-AS1可抑制E-cadherin蛋白表达,促进Vimentin和Twist蛋白表达。结论:lncRNA UNC5B-AS1通过靶向调控miR-218-5p的表达促进肺癌细胞黏附、侵袭和迁移,其作用机制可能与促进EMT的发生有关。

关键词: UNC5B-AS1, miR-218-5p, 肺癌细胞, 黏附, 侵袭, 迁移

Abstract: Objective: To investigate the effects of long-chain non-coding RNA (lncRNA) UNC5B-AS1 on the adhesion, invasion and migration of lung cancer cells by regulating the expression of miR-218-5p. Methods: Twenty specimens of lung cancer patients and corresponding paracancerous tissues were surgically removed and collected from the oncology department of Chongqing Three Gorges Central Hospital from June 2017 to June 2019. Real-time quantitative PCR (qRT-PCR) was used to detect the expressions of UNC5B-AS1 in human bronchial epithelial cells HBE and different lung cancer cells of A549, H1437, H1975, H1299 and H460. UNC5B-AS1 siRNA was transfected into lung cancer A549 cells. Adhesion assay, transwell invasion assay and scratch assay were used to detect the effect of UNC5B-AS1 on adhesion, invasion and migration of A549 cells. qRT-PCR and dual luciferase reporter gene were used for the detection and identification of UNC5B-AS1 targeting miR-218-5p. The expression of epithelial-mesenchymal transition (EMT)-related protein was detected by Western blot. Results: The expression of UNC5B-AS1 in lung cancer tissues and cells was significantly higher than that in adjacent tissues and bronchial epithelial cells (P＜0.05). The expression of UNC5B-AS1 in lung cancer A549 cells was the highest (P＜0.05). Down-regulation of UNC5B-AS1 expression inhibited adhesion, invasion and migration of A549 cells (P＜0.05). qRT-PCR and dual luciferase reporter assay experiments showed that UNC5B-AS1 targeted the regulation of miR-218-5p expression. Down-regulation of UNC5B-AS1 inhibited E-cadherin protein expression and promoted Vimentin and Twist protein expression. Conclusion: lncRNA UNC5B-AS1 promotes adhesion, invasion and migration of lung cancer cells through targeted regulation of miR-218-5p expression, and its mechanism may be related to the promotion of EMT.

Key words: UNC5B-AS1, miR-218-5p, lung cancer cells, adhesion, invasion, migration

中图分类号:

R734.2

谭建军, 隆姝孜, 张涛. LncRNA UNC5B-AS1对肺癌细胞黏附、侵袭及迁移的影响及其机制^*[J]. 中国应用生理学杂志, 2020, 36(6): 622-627.

TAN Jian-Jun, LONG Shu-Zi, ZHANG Tao. Effects of LncRNA UNC5B-AS1 on adhesion, invasion and migration of lung cancer cells and its mechanism[J]. CJAP, 2020, 36(6): 622-627.

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LncRNA UNC5B-AS1对肺癌细胞黏附、侵袭及迁移的影响及其机制^*

Effects of LncRNA UNC5B-AS1 on adhesion, invasion and migration of lung cancer cells and its mechanism

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