Down-Regulation of miR-140 Induces EMT and Promotes Invasion by Targeting Slug in Esophageal Cancer

Background/Aims: MicroRNAs (miRNAs) are reported to regulate cell invasion and functions by interfering with the translation of target mRNAs, but the role of miRNAs in esophageal cancer (EC) remains unclear. Methods: RT-PCR and Western blot were used to detect the expression of miRNAs and candidate...

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Main Authors: Weiling Li, Guojun Jiang, Jianping Zhou, Hongmin Wang, Zegang Gong, Zheng Zhang, Ke Min, Hongdi Zhu, Yongfei Tan
Format: Article
Language:English
Published: Cell Physiol Biochem Press GmbH & Co KG 2014-10-01
Series:Cellular Physiology and Biochemistry
Subjects:
Online Access:http://www.karger.com/Article/FullText/366351
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author Weiling Li
Guojun Jiang
Jianping Zhou
Hongmin Wang
Zegang Gong
Zheng Zhang
Ke Min
Hongdi Zhu
Yongfei Tan
author_facet Weiling Li
Guojun Jiang
Jianping Zhou
Hongmin Wang
Zegang Gong
Zheng Zhang
Ke Min
Hongdi Zhu
Yongfei Tan
author_sort Weiling Li
collection DOAJ
description Background/Aims: MicroRNAs (miRNAs) are reported to regulate cell invasion and functions by interfering with the translation of target mRNAs, but the role of miRNAs in esophageal cancer (EC) remains unclear. Methods: RT-PCR and Western blot were used to detect the expression of miRNAs and candidate genes in EC samples (n=89). miR-140 mimics and inhibitor were tansfected in human TE-1 and Eca-109 cells. The transwell assay was used to examine the cell invasive ability. The regulation mechanism was confirmed by luciferase reporter assay. The markers of EMT were detected by using Western blot. Results: miR-140 expression was decreased in the EC tissues compared with the corresponding adjacent tumor tissues. Low expression of miR-140 promotes cell invasion by using transwell assay, while the effect of miR-140 high expression is reverse. Slug, a target gene of miR-140, was examined by luciferase assay and Western blot. Conclusions: miR-140 may regulate the cell invasion of EC via controlling Slug expression.
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spelling doaj.art-55631b2c56074d25b44ccb1b9b5d87292022-12-21T18:43:42ZengCell Physiol Biochem Press GmbH & Co KGCellular Physiology and Biochemistry1015-89871421-97782014-10-013451466147610.1159/000366351366351Down-Regulation of miR-140 Induces EMT and Promotes Invasion by Targeting Slug in Esophageal CancerWeiling LiGuojun JiangJianping ZhouHongmin WangZegang GongZheng ZhangKe MinHongdi ZhuYongfei TanBackground/Aims: MicroRNAs (miRNAs) are reported to regulate cell invasion and functions by interfering with the translation of target mRNAs, but the role of miRNAs in esophageal cancer (EC) remains unclear. Methods: RT-PCR and Western blot were used to detect the expression of miRNAs and candidate genes in EC samples (n=89). miR-140 mimics and inhibitor were tansfected in human TE-1 and Eca-109 cells. The transwell assay was used to examine the cell invasive ability. The regulation mechanism was confirmed by luciferase reporter assay. The markers of EMT were detected by using Western blot. Results: miR-140 expression was decreased in the EC tissues compared with the corresponding adjacent tumor tissues. Low expression of miR-140 promotes cell invasion by using transwell assay, while the effect of miR-140 high expression is reverse. Slug, a target gene of miR-140, was examined by luciferase assay and Western blot. Conclusions: miR-140 may regulate the cell invasion of EC via controlling Slug expression.http://www.karger.com/Article/FullText/366351miR-140SlugInvasionEsophageal cancerEMT
spellingShingle Weiling Li
Guojun Jiang
Jianping Zhou
Hongmin Wang
Zegang Gong
Zheng Zhang
Ke Min
Hongdi Zhu
Yongfei Tan
Down-Regulation of miR-140 Induces EMT and Promotes Invasion by Targeting Slug in Esophageal Cancer
Cellular Physiology and Biochemistry
miR-140
Slug
Invasion
Esophageal cancer
EMT
title Down-Regulation of miR-140 Induces EMT and Promotes Invasion by Targeting Slug in Esophageal Cancer
title_full Down-Regulation of miR-140 Induces EMT and Promotes Invasion by Targeting Slug in Esophageal Cancer
title_fullStr Down-Regulation of miR-140 Induces EMT and Promotes Invasion by Targeting Slug in Esophageal Cancer
title_full_unstemmed Down-Regulation of miR-140 Induces EMT and Promotes Invasion by Targeting Slug in Esophageal Cancer
title_short Down-Regulation of miR-140 Induces EMT and Promotes Invasion by Targeting Slug in Esophageal Cancer
title_sort down regulation of mir 140 induces emt and promotes invasion by targeting slug in esophageal cancer
topic miR-140
Slug
Invasion
Esophageal cancer
EMT
url http://www.karger.com/Article/FullText/366351
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