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Dysregulated mRNA and miRNA expression networks in Helicobacter pylori infected gastric epithelial cell line, AGS

ABSTRACT: This SuperSeries is composed of the SubSeries listed below.

ORGANISM(S): Homo sapiens

PROVIDER: GSE108307 | GEO | 2017/12/20

SECONDARY ACCESSION(S): PRJNA423064

REPOSITORIES: GEO

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Dysregulated mRNA and miRNA expression networks in Helicobacter pylori infected gastric epithelial cell line, AGS (miRNA)

Project description:We performed genome-wide mRNA and miRNA expression analysis in gastric epithelial cell line AGS infected with Helicobacter pylori at 100 Multiplicity of Infection (MOI), comparing the expression profile of infected cells with uninfected cells. Differentially expressed mRNAs and miRNAs were identified, which showed a 1.5 fold change in expression in infected cells compared to uninfected cells. We performed in silico analysis of miRNA-mRNA target interactions among the inversely correlated differentially expressed miRNAs and mRNAs, and performed functional enrichment analysis of the target genes, to identify important cellular pathways that reflect the patho-biology of H. pylori infected cells. Among the important miRNA-mRNA target pairs, PHLPP1, reported to be associated with poor prognosis in cancer, was predicted to be a putative target of miR-29b-1-5p. Therefore, we focused on the miR-29b-1-5p/PHLPP1 miRNA/target pair for detailed investigation into their role in H. pylori-mediated signalling in gastric epithelial cells. This study demonstrates that an integrated analysis of global mRNA and miRNA expression patterns, combined with miRNA-mRNA target prediction and functional analysis of miRNA target genes can yield an understanding of the critical pathways regulating the behaviour of gastric epithelial cells challenged with H. pylori.

2017-12-20 | GSE108306 | GEO

Dysregulated mRNA and miRNA expression networks in Helicobater pylori infected gastric epithelial cell line, AGS (mRNA)

Project description:We performed genome-wide mRNA and miRNA expression analysis in gastric epithelial cell line AGS infected with Helicobacter pylori at 100 Multiplicity of Infection (MOI), comparing the expression profile of infected cells with uninfected cells. Differentially expressed mRNAs and miRNAs wered identified, which showed a 1.5 fold change in expression in infected cells compared to uninfected cells. We performed in silico analysis of miRNA-mRNA target interactions among the inversely correlated differentially expressed miRNAs and mRNAs, and performed functional enrichment analysis of the target genes, to identify important cellular pathways that reflect the patho-biology of H. pylori infected cells. Among the important miRNA-mRNA target pairs, PHLPP1, reported to be associated with poor prognosis in cancer, was predicted to be a putative target of miR-29b-1-5p. Therefore, we focused on the miR-29b-1-5p/PHLPP1 miRNA/target pair for detailed investigation into their role in H. pylori-mediated signalling in gastric epithelial cells. This study demonstrates that an integrated analysis of global mRNA and miRNA expression patterns, combined with miRNA-mRNA target prediction and functional analysis of miRNA target genes can yield an understanding of the critical pathways regulating the behaviour of gastric epithelial cells challenged with H. pylori.

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Project description:Dysregulated mRNA and miRNA expression networks in Helicobacter pylori infected gastric epithelial cell line, AGS (miRNA)

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