Long Noncoding RNA-LET Suppresses Tumor Growth and EMT in Lung Adenocarcinoma.

Long Noncoding RNA-LET Suppresses Tumor Growth and EMT in Lung Adenocarcinoma.
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长非编码 RNA-LET 抑制肺腺癌中的肿瘤生长和 EMT

DOI:
10.1155/2016/4693471
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发表时间:
2016
影响因子:
--
通讯作者:
Chen YJ
Chen YJ
中科院分区:
生物学3区
文献类型:
--
作者:
Liu B;Pan CF;He ZC;Wang J;Wang PL;Ma T;Xia Y;Chen YJ

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近年来,大量研究表明长链非编码RNA(lncRNA)参与了肿瘤的发生、发展过程。据报道,lncRNA-LET是下调的,并对几种类型的癌症具有抗肿瘤作用。本研究的重点是lncRNA-LET在肺腺癌(LAC)进展中的作用。RT-PCR结果表明,在LAC组织中lncRNA-LET的频繁下调与临床病理因素有关。lncRNA-LET敲低可显著促进LAC细胞的增殖、侵袭和迁移,而lncRNA-LET过表达可明显抑制LAC细胞的增殖、侵袭和迁移,提示lncRNA-LET在LAC进展中具有肿瘤抑制作用。此外,lncRNA-LET可部分抑制EMT,并负性调节Wnt/β-catenin通路。我们的研究表明lncRNA-LET通过抑制EMT和Wnt/β-catenin通路对LAC的发展具有重要的抑制作用,这为LAC的治疗提供了潜在的靶点。
Recently, many studies showed that long noncoding RNAs (lncRNAs) are involved in tumor progression. It is reported that lncRNA-LET is downregulated and has antitumor effect on several types of cancer. This study focuses on the role of lncRNA-LET on lung adenocarcinoma (LAC) progression. RT-PCR results indicated that frequent downregulation of lncRNA-LET in LAC tissues was related to clinicopathologic factors. lncRNA-LET knockdown significantly promoted LAC cell proliferation, invasion, and migration while lncRNA-LET overexpression obviously inhibited LAC cell proliferation, invasion, and migration, indicating a tumor inhibition of lncRNA-LET in LAC progression. Besides, lncRNA-LET inhibited EMT and negatively regulated Wnt/β-catenin pathway in part. Our study suggests that lncRNA-LET exhibits an important tumor-suppressive effect on LAC progression by inhibiting EMT and Wnt/β-catenin pathway, which provides potential therapeutic targets for LAC.
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