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RNA-seq analysis of gene expression in Helicobacter pylori expressing either WT Fur or a Fur variant (Fur-R88H).

ABSTRACT: RNA-seq analysis of gene expression in Helicobacter pylori expressing either WT Fur or a Fur variant (Fur-R88H).

PROVIDER: PRJNA884389 | ENA |

REPOSITORIES: ENA

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RNA-seq analysis of gene expression in Helicobacter pylori expressing either WT Fur or a Fur variant (Fur-R88H).

Project description:Purpose: Next-generation sequencing (NGS) was used to analyze gene expression in H. pylori strains expressing either WT Fur or a Fur variant (i.e. Fur-R88H). The goals of this study are to examine the role that WT Fur and Fur-R88H play in affecting salt-responsive gene expression in the 2 different strains. The H. pylori strains were grown in the presence of routine salt (0.5% added NaCl) or high salt (1.0% added NaCl).

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Expression data from AGS cells with Helicobacter pylori infection

Project description:Helicobacter pylori (H. pylori) is a human pathogen that infects almost half of the world’s population. Infection with H. pylori is frequently associated with chronic gastritis and can even lead to gastric and duodenal ulcers and gastric cancer. Although the persistent colonization of H. pylori and the development of H. pylori-associated gastritis remain poorly understood, it is believed that, in gastric mucosa, the modulated gastric epithelial cells (GECs) by H. pylori are key contributors. We used microarrays to detail the global programme of gene expression in Helicobacter pylori infected-gastric epithelial cell line AGS cells and identified up-regulated genes induced by Helicobacter pylori infection.

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Project description:The purpose of this study was to examine macrophage proteomic changes induced by Helicobacter pylori. Macrophages utilized were the RAW 264.7 murine cell line. Macrophages were treated with H. pylori for 24 hours. The experimental design was a 4-plex isobaric tags for relative and absolute quantification (iTRAQ). In addition to uninfected control and H. pylori infected, the additional two conditions included an inhibitor of deoxyhypusine synthase (N1-guanyl-1,7-diamine-heptane, 1-(7-ammonioheptyl)guanidinium sulfate; GC7) an enzyme involved in the hypusination translation pathway, and the inhibitor plus H. pylori.

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Transcriptome analysis of AGS cells infected with Helicobacter pylori P12

Project description:Transcriptome analysis of AGS cells infected with Helicobacter pylori P12

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Project description:Based on preliminary data demonstrating that macrophages are critical regulators of Helicobacter pylori colonization and gastric pathology in mice, we sought to investigate how macrophages may serve as bacterial reservoirs of intracellular H. pylori.

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Transcription profiling of cell lines in response to Helicobacter pylori lipopolysaccharide shows Tribbles 3 - a novel regulator of TLR2-mediated signaling in response to Helicobacter pylori lipopolysaccharide

Project description:This SuperSeries is composed of the following subset Series: GSE25146: Changes in gene expression in AGS cells in response to Helicobacter pylori lipopolysaccharide GSE25147: Changes in gene expression in MKN45 cells in response to Helicobacter pylori lipopolysaccharide GSE25148: Changes in gene expression in HEK-TLR2 cells in response to Helicobacter pylori lipopolysaccharide Refer to individual Series

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Transcript changes in tlpD mutant of Helicobacter pylori

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Project description:High temperature requirement A (HtrA) is a serine protease secreted by the group-I carcinogen Helicobacter pylori (H. pylori). The human cell adhesion protein and tumor suppressor E-cadherin (hCdh1) expressed on the surface of gastric epithelial cells was identified as the first HtrA substrate. HtrA-mediated hCdh1 cleavage and subsequent disruption of intercellular adhesion are considered as important steps in H. pylori pathogenesis. In this study, we performed a proteomic profiling of H. pylori HtrA (HpHtrA) to decipher the complex mechanism how H. pylori can interfere with epithelial barrier integrity.

2022-02-17 | PXD025360 | Pride

Helicobacter pylori pathogenic mechanism

Project description:Helicobacter pylori infection reprograms host gene expression and influences various cellular processes, which have been investigated by cDNA microarray in vitro culture cells and in vivo patients of the chronic abdominal complaint. In this study，the effects of H. pylori infection on host gene expression in the gastric antral mucosa of patients with chronic gastritis were examined. The gastric antral mucosa was obtained from a total of 6 untreated patients undergoing gastroscopic and pathologic confirmation of chronic superficial gastritis. Three patients infected by H. pylori and 3 patients uninfected were used to cDNA microarray experiment.

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