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Cross-sectional study of human coding- and non-coding RNAs in progressive stages of Helicobacter pylori infection.


ABSTRACT: Helicobacter pylori infects 4.4 billion individuals worldwide and is considered the most important etiologic agent for peptic ulcers and gastric cancer. Individual response to H. pylori infection is complex and depends on complex interactions between host and environmental factors. The pathway towards gastric cancer is a sequence of events known as Correa's model of gastric carcinogenesis, a stepwise inflammatory process from normal mucosa to chronic-active gastritis, atrophy, metaplasia and gastric adenocarcinoma. This study examines gastric clinical specimens representing different steps of the Correa pathway with the aim of identifying the expression profiles of coding- and non-coding RNAs that may have a role in Correa's model of gastric carcinogenesis. We screened for differentially expressed genes in gastric biopsies by employing RNAseq, microarrays and qRT-PCR. Here we provide a detailed description of the experiments, methods and results generated. The datasets may help other scientists and clinicians to find new clues to the pathogenesis of H. pylori and the mechanisms of progression of the infection to more severe gastric diseases. Data is available via ArrayExpress.

SUBMITTER: Lario S 

PROVIDER: S-EPMC7479617 | biostudies-literature | 2020 Sep

REPOSITORIES: biostudies-literature

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Cross-sectional study of human coding- and non-coding RNAs in progressive stages of Helicobacter pylori infection.

Lario Sergio S   Ramírez-Lázaro María J MJ   González-Lahera Aintzane A   Lavín José L JL   Vila-Casadesús Maria M   Quílez María E ME   Brunet-Vega Anna A   Lozano Juan J JJ   Aransay Ana M AM   Calvet Xavier X  

Scientific data 20200908 1


Helicobacter pylori infects 4.4 billion individuals worldwide and is considered the most important etiologic agent for peptic ulcers and gastric cancer. Individual response to H. pylori infection is complex and depends on complex interactions between host and environmental factors. The pathway towards gastric cancer is a sequence of events known as Correa's model of gastric carcinogenesis, a stepwise inflammatory process from normal mucosa to chronic-active gastritis, atrophy, metaplasia and gas  ...[more]

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