Differential Long Non-Coding RNA Expression Analysis in Chronic Non-Atrophic Gastritis, Gastric Mucosal Intraepithelial Neoplasia, and Gastric Cancer Tissues

Gastric cancer (GC) has a high incidence worldwide, and when detected, the majority of patients have already progressed to advanced stages. Long non-coding RNAs (lncRNAs) have a wide range of biological functions and affect tumor occurrence and development. However, the potential role of lncRNAs in...

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Main Authors: Xin-Yuan Liu, Tian-Qi Zhang, Qi Zhang, Jing Guo, Peng Zhang, Tao Mao, Zi-Bin Tian, Cui-Ping Zhang, Xiao-Yu Li
Format: Article
Language:English
Published: Frontiers Media S.A. 2022-04-01
Series:Frontiers in Genetics
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fgene.2022.833857/full
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author Xin-Yuan Liu
Tian-Qi Zhang
Qi Zhang
Jing Guo
Peng Zhang
Tao Mao
Zi-Bin Tian
Cui-Ping Zhang
Xiao-Yu Li
author_facet Xin-Yuan Liu
Tian-Qi Zhang
Qi Zhang
Jing Guo
Peng Zhang
Tao Mao
Zi-Bin Tian
Cui-Ping Zhang
Xiao-Yu Li
author_sort Xin-Yuan Liu
collection DOAJ
description Gastric cancer (GC) has a high incidence worldwide, and when detected, the majority of patients have already progressed to advanced stages. Long non-coding RNAs (lncRNAs) have a wide range of biological functions and affect tumor occurrence and development. However, the potential role of lncRNAs in GC diagnosis remains unclear. We selected five high-quality samples from each group of chronic non-atrophic gastritis, gastric mucosal intraepithelial neoplasia, and GC tissues for analysis. RNA-seq was used to screen the differentially expressed lncRNAs, and we identified 666 differentially expressed lncRNAs between the chronic non-atrophic gastritis and GC groups, 13 differentially expressed lncRNAs between the gastric mucosal intraepithelial neoplasia and GC groups, and 507 differentially expressed lncRNAs between the chronic non-atrophic gastritis and gastric mucosal intraepithelial neoplasia groups. We also identified six lncRNAs (lncRNA H19, LINC00895, lnc-SRGAP2C-16, lnc-HLA-C-2, lnc-APOC1-1, and lnc-B3GALT2-1) which not only differentially expressed between the chronic non-atrophic gastritis and GC groups, but also differentially expressed between the gastric mucosal intraepithelial neoplasia and GC groups. Furthermore, RT-qPCR was used to verify the differentially co-expressed lncRNAs. LncSEA was used to conduct a functional analysis of differentially expressed lncRNAs. We also predicted the target mRNAs of the differentially expressed lncRNAs through bioinformatics analysis and analyzed targeting correlations between three differentially co-expressed lncRNAs and mRNAs (lncRNA H19, LINC00895, and lnc-SRGAP2C-16). Gene Ontology and Kyoto Encyclopedia of Genes and Genomes databases were used to explore the functions of target mRNAs of differentially expressed lncRNAs. In conclusion, our study provides a novel perspective on the potential functions of differentially expressed lncRNAs in GC occurrence and development, indicating that the differentially expressed lncRNAs might be new biomarkers for early GC diagnosis.
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spelling doaj.art-a6af5234f7b44e529caba302ef2903412022-12-22T02:09:08ZengFrontiers Media S.A.Frontiers in Genetics1664-80212022-04-011310.3389/fgene.2022.833857833857Differential Long Non-Coding RNA Expression Analysis in Chronic Non-Atrophic Gastritis, Gastric Mucosal Intraepithelial Neoplasia, and Gastric Cancer TissuesXin-Yuan Liu0Tian-Qi Zhang1Qi Zhang2Jing Guo3Peng Zhang4Tao Mao5Zi-Bin Tian6Cui-Ping Zhang7Xiao-Yu Li8Department of Gastroenterology, The Affiliated Hospital of Qingdao University, Qingdao, ChinaDepartment of Gastroenterology, Qingdao Women and Children’s Hospital, Qingdao, ChinaDepartment of Gastroenterology, The Affiliated Hospital of Qingdao University, Qingdao, ChinaDepartment of Gastroenterology, The Affiliated Hospital of Qingdao University, Qingdao, ChinaDepartment of Gastroenterology, The Affiliated Hospital of Qingdao University, Qingdao, ChinaDepartment of Gastroenterology, The Affiliated Hospital of Qingdao University, Qingdao, ChinaDepartment of Gastroenterology, The Affiliated Hospital of Qingdao University, Qingdao, ChinaDepartment of Gastroenterology, The Affiliated Hospital of Qingdao University, Qingdao, ChinaDepartment of Gastroenterology, The Affiliated Hospital of Qingdao University, Qingdao, ChinaGastric cancer (GC) has a high incidence worldwide, and when detected, the majority of patients have already progressed to advanced stages. Long non-coding RNAs (lncRNAs) have a wide range of biological functions and affect tumor occurrence and development. However, the potential role of lncRNAs in GC diagnosis remains unclear. We selected five high-quality samples from each group of chronic non-atrophic gastritis, gastric mucosal intraepithelial neoplasia, and GC tissues for analysis. RNA-seq was used to screen the differentially expressed lncRNAs, and we identified 666 differentially expressed lncRNAs between the chronic non-atrophic gastritis and GC groups, 13 differentially expressed lncRNAs between the gastric mucosal intraepithelial neoplasia and GC groups, and 507 differentially expressed lncRNAs between the chronic non-atrophic gastritis and gastric mucosal intraepithelial neoplasia groups. We also identified six lncRNAs (lncRNA H19, LINC00895, lnc-SRGAP2C-16, lnc-HLA-C-2, lnc-APOC1-1, and lnc-B3GALT2-1) which not only differentially expressed between the chronic non-atrophic gastritis and GC groups, but also differentially expressed between the gastric mucosal intraepithelial neoplasia and GC groups. Furthermore, RT-qPCR was used to verify the differentially co-expressed lncRNAs. LncSEA was used to conduct a functional analysis of differentially expressed lncRNAs. We also predicted the target mRNAs of the differentially expressed lncRNAs through bioinformatics analysis and analyzed targeting correlations between three differentially co-expressed lncRNAs and mRNAs (lncRNA H19, LINC00895, and lnc-SRGAP2C-16). Gene Ontology and Kyoto Encyclopedia of Genes and Genomes databases were used to explore the functions of target mRNAs of differentially expressed lncRNAs. In conclusion, our study provides a novel perspective on the potential functions of differentially expressed lncRNAs in GC occurrence and development, indicating that the differentially expressed lncRNAs might be new biomarkers for early GC diagnosis.https://www.frontiersin.org/articles/10.3389/fgene.2022.833857/fulllong non-coding RNAschronic non-atrophic gastritisgastric mucosal intraepithelial neoplasiagastric cancergene expression
spellingShingle Xin-Yuan Liu
Tian-Qi Zhang
Qi Zhang
Jing Guo
Peng Zhang
Tao Mao
Zi-Bin Tian
Cui-Ping Zhang
Xiao-Yu Li
Differential Long Non-Coding RNA Expression Analysis in Chronic Non-Atrophic Gastritis, Gastric Mucosal Intraepithelial Neoplasia, and Gastric Cancer Tissues
Frontiers in Genetics
long non-coding RNAs
chronic non-atrophic gastritis
gastric mucosal intraepithelial neoplasia
gastric cancer
gene expression
title Differential Long Non-Coding RNA Expression Analysis in Chronic Non-Atrophic Gastritis, Gastric Mucosal Intraepithelial Neoplasia, and Gastric Cancer Tissues
title_full Differential Long Non-Coding RNA Expression Analysis in Chronic Non-Atrophic Gastritis, Gastric Mucosal Intraepithelial Neoplasia, and Gastric Cancer Tissues
title_fullStr Differential Long Non-Coding RNA Expression Analysis in Chronic Non-Atrophic Gastritis, Gastric Mucosal Intraepithelial Neoplasia, and Gastric Cancer Tissues
title_full_unstemmed Differential Long Non-Coding RNA Expression Analysis in Chronic Non-Atrophic Gastritis, Gastric Mucosal Intraepithelial Neoplasia, and Gastric Cancer Tissues
title_short Differential Long Non-Coding RNA Expression Analysis in Chronic Non-Atrophic Gastritis, Gastric Mucosal Intraepithelial Neoplasia, and Gastric Cancer Tissues
title_sort differential long non coding rna expression analysis in chronic non atrophic gastritis gastric mucosal intraepithelial neoplasia and gastric cancer tissues
topic long non-coding RNAs
chronic non-atrophic gastritis
gastric mucosal intraepithelial neoplasia
gastric cancer
gene expression
url https://www.frontiersin.org/articles/10.3389/fgene.2022.833857/full
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