Microbial composition of gastric lesions: differences based on Helicobacter pylori virulence profile

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorFederal University of Ceará-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorRabenhorst, Silvia Helena Barem-
Autor(es): dc.creatorFerrasi, Adriana Camargo-
Autor(es): dc.creatorBarboza, Morgana Maria de Oliveira-
Autor(es): dc.creatorMelo, Vânia Maria Maciel-
Data de aceite: dc.date.accessioned2025-08-21T18:00:11Z-
Data de disponibilização: dc.date.available2025-08-21T18:00:11Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2024-11-30-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1038/s41598-024-80394-2-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/297314-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/297314-
Descrição: dc.descriptionHelicobacter pylori infection is a major risk factor for gastric adenocarcinomas. In the case of the intestinal subtype, chronic gastritis and intestinal metaplasia are well-known sequential steps in carcinogenesis. H. pylori has high genetic diversity that can modulate virulence and pathogenicity in the human host as a cag Pathogenicity Island (cagPAI). However, bacterial gene combinations do not always explain the clinical presentation of the disease, indicating that other factors associated with H. pylori may play a role in the development of gastric disease. In this context, we characterized the microbial composition of patients with chronic gastritis (inactive and active), intestinal metaplasia, and gastric cancer as well as their potential association with H. pylori. To this end, 16 S rRNA metagenomic analysis was performed on gastric mucosa samples from patients with different types of lesions and normal gastric tissues. Our main finding was that H. pylori virulence status can contribute to significant differences in the constitution of the gastric microbiota between the sequential steps of the carcinogenesis cascade. Differential microbiota was observed in inactive and active gastritis dependent of the H. pylori presence and status (p = 0.000575). Pseudomonades, the most abundant order in the gastritis, was associated the presence of non-virulent H. pylori in the active gastritis. Notably, there are indicator genera according to H. pylori status that are poorly associated with diseases and provide additional evidence that the microbiota, in addition to H. pylori, is relevant to gastric carcinogenesis.-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionFundação Cearense de Apoio ao Desenvolvimento Científico e Tecnológico-
Descrição: dc.descriptionGenetic Molecular Laboratory Pathology and Forensic Medicine Department Federal University of Ceará, CE-
Descrição: dc.descriptionDepartment of Internal Medicine Botucatu Medical School Sao Paulo State University-
Descrição: dc.descriptionMicrobial Ecology and Biotechnology Laboratory Department of Biology Federal University of Ceará, CE-
Descrição: dc.descriptionDepartment of Internal Medicine Botucatu Medical School Sao Paulo State University-
Descrição: dc.descriptionFundação Cearense de Apoio ao Desenvolvimento Científico e Tecnológico: 07939716/2020-
Idioma: dc.languageen-
Relação: dc.relationScientific Reports-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectGastric cancer-
Palavras-chave: dc.subjectHelicobacter pylori-
Palavras-chave: dc.subjectMetagenomics-
Título: dc.titleMicrobial composition of gastric lesions: differences based on Helicobacter pylori virulence profile-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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