Long non-coding RNA LINC00240 promotes gastric cancer progression via modulating miR-338-5p/METTL3 axis

Gastric cancer (GC) is a common cancer with high incidence. Understanding the epidemiology and physiopathology of GC is crucial for formulating novel therapeutic strategies. Recent studies have implicated long non-coding RNA LINC00240, miR-338-5p and methyltransferase-like 3 (METTL3) in the progress...

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Autores principales: Guoping Wang, Zhongchen Zhang, Chenmei Xia
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Lenguaje:EN
Publicado: Taylor & Francis Group 2021
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Acceso en línea:https://doaj.org/article/738da1b18bb240f89e1c42390a1526a9
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spelling oai:doaj.org-article:738da1b18bb240f89e1c42390a1526a92021-12-01T14:41:00ZLong non-coding RNA LINC00240 promotes gastric cancer progression via modulating miR-338-5p/METTL3 axis2165-59792165-598710.1080/21655979.2021.1983276https://doaj.org/article/738da1b18bb240f89e1c42390a1526a92021-12-01T00:00:00Zhttp://dx.doi.org/10.1080/21655979.2021.1983276https://doaj.org/toc/2165-5979https://doaj.org/toc/2165-5987Gastric cancer (GC) is a common cancer with high incidence. Understanding the epidemiology and physiopathology of GC is crucial for formulating novel therapeutic strategies. Recent studies have implicated long non-coding RNA LINC00240, miR-338-5p and methyltransferase-like 3 (METTL3) in the progression of GC. In this study, we investigated the functional role of LINC00240/miR-338-5p/METTL3 axis in regulating the aggressiveness of GC cells. We first demonstrated that LINC00240 was upregulated in GC tissues and GC cell lines. High expression of LINC00240 was associated with advanced TNM stage, a higher extent of distant metastasis and lymph nodes metastasis, and the poor overall and disease-free survival of the patients. In GC cell lines, the knockdown of LINC00240 inhibited GC cell proliferation and migration, but induced cell apoptosis. We further identified and validated the functional interaction between LINC00240 and miR-338-5p. miR-338-5p seemed to function as a downstream target negatively regulated by LINC00240, and miR-338-5p could target METTL3 at 3ʹ UTR to downregulate its expression. In GC tissues, the expression of miR-338-5p was negatively correlated with LINC00240, and the expression of miR-338-5p was negatively correlated with METTL3. Importantly, miR-338-5p inhibitor or METTL3 overexpression could rescue the inhibitory effect of LINC00240 knockdown on cell proliferation and migration, and inhibit the apoptosis induction in GC cells. Taken together, our data imply that the upregulation of LINC00240 in GC cells promotes the malignant phenotype by modulating miR-338-5p/METTL3 axis, which could serve as potential therapeutic targets for GC treatment.Guoping WangZhongchen ZhangChenmei XiaTaylor & Francis Grouparticlelinc00240mir-338-5pmettl3gastric cancercell functionBiotechnologyTP248.13-248.65ENBioengineered, Vol 12, Iss 2, Pp 9678-9691 (2021)
institution DOAJ
collection DOAJ
language EN
topic linc00240
mir-338-5p
mettl3
gastric cancer
cell function
Biotechnology
TP248.13-248.65
spellingShingle linc00240
mir-338-5p
mettl3
gastric cancer
cell function
Biotechnology
TP248.13-248.65
Guoping Wang
Zhongchen Zhang
Chenmei Xia
Long non-coding RNA LINC00240 promotes gastric cancer progression via modulating miR-338-5p/METTL3 axis
description Gastric cancer (GC) is a common cancer with high incidence. Understanding the epidemiology and physiopathology of GC is crucial for formulating novel therapeutic strategies. Recent studies have implicated long non-coding RNA LINC00240, miR-338-5p and methyltransferase-like 3 (METTL3) in the progression of GC. In this study, we investigated the functional role of LINC00240/miR-338-5p/METTL3 axis in regulating the aggressiveness of GC cells. We first demonstrated that LINC00240 was upregulated in GC tissues and GC cell lines. High expression of LINC00240 was associated with advanced TNM stage, a higher extent of distant metastasis and lymph nodes metastasis, and the poor overall and disease-free survival of the patients. In GC cell lines, the knockdown of LINC00240 inhibited GC cell proliferation and migration, but induced cell apoptosis. We further identified and validated the functional interaction between LINC00240 and miR-338-5p. miR-338-5p seemed to function as a downstream target negatively regulated by LINC00240, and miR-338-5p could target METTL3 at 3ʹ UTR to downregulate its expression. In GC tissues, the expression of miR-338-5p was negatively correlated with LINC00240, and the expression of miR-338-5p was negatively correlated with METTL3. Importantly, miR-338-5p inhibitor or METTL3 overexpression could rescue the inhibitory effect of LINC00240 knockdown on cell proliferation and migration, and inhibit the apoptosis induction in GC cells. Taken together, our data imply that the upregulation of LINC00240 in GC cells promotes the malignant phenotype by modulating miR-338-5p/METTL3 axis, which could serve as potential therapeutic targets for GC treatment.
format article
author Guoping Wang
Zhongchen Zhang
Chenmei Xia
author_facet Guoping Wang
Zhongchen Zhang
Chenmei Xia
author_sort Guoping Wang
title Long non-coding RNA LINC00240 promotes gastric cancer progression via modulating miR-338-5p/METTL3 axis
title_short Long non-coding RNA LINC00240 promotes gastric cancer progression via modulating miR-338-5p/METTL3 axis
title_full Long non-coding RNA LINC00240 promotes gastric cancer progression via modulating miR-338-5p/METTL3 axis
title_fullStr Long non-coding RNA LINC00240 promotes gastric cancer progression via modulating miR-338-5p/METTL3 axis
title_full_unstemmed Long non-coding RNA LINC00240 promotes gastric cancer progression via modulating miR-338-5p/METTL3 axis
title_sort long non-coding rna linc00240 promotes gastric cancer progression via modulating mir-338-5p/mettl3 axis
publisher Taylor & Francis Group
publishDate 2021
url https://doaj.org/article/738da1b18bb240f89e1c42390a1526a9
work_keys_str_mv AT guopingwang longnoncodingrnalinc00240promotesgastriccancerprogressionviamodulatingmir3385pmettl3axis
AT zhongchenzhang longnoncodingrnalinc00240promotesgastriccancerprogressionviamodulatingmir3385pmettl3axis
AT chenmeixia longnoncodingrnalinc00240promotesgastriccancerprogressionviamodulatingmir3385pmettl3axis
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