2010
DOI: 10.1007/s12558-010-0123-z
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Infections à Helicobacter pylori et oncogenèse

Abstract: Les infections chroniques, qu'elles soient de nature virale, bactérienne ou parasitaire, pèsent d'un poids important dans l'étiologie des cancers. Les données épidémiologiques montrent que 18 % des néoplasies dans le monde sont dues à des infections chroniques [1,2].La particularité des pays en développement est que l'impact des maladies infectieuses, notamment dans les régions tropicales, y est plus élevé et qu'elles sont incriminées dans 26 % des cas de cancers [1,2]. En affinant l'analyse, on observe que le… Show more

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“…[68,69] H. pylori CagA-positif can induce activation and differentiation of gastric fibroblasts, mediated by the transcription factors NFκB and STAT3 signaling leading to rapid expression of the Snail1 protein, which can finally activate the secretome responsible for the inflammatory and fibroblast-inducing microenvironment that serves in gastric cancer development. [70] Bacterial strains that are positive for both proteins (CagA and VacA), which have complementary functions, have higher virulence and are more capable of determining the histopathological actions that take place in the oncogenesis pathway. As a result, VacA and CagA alter adhesion, cytoskeletal organization, cell mobility and permeability, as well as mitochondrial and lysosomal activitie.…”
Section: In Vitromentioning
confidence: 99%
“…[68,69] H. pylori CagA-positif can induce activation and differentiation of gastric fibroblasts, mediated by the transcription factors NFκB and STAT3 signaling leading to rapid expression of the Snail1 protein, which can finally activate the secretome responsible for the inflammatory and fibroblast-inducing microenvironment that serves in gastric cancer development. [70] Bacterial strains that are positive for both proteins (CagA and VacA), which have complementary functions, have higher virulence and are more capable of determining the histopathological actions that take place in the oncogenesis pathway. As a result, VacA and CagA alter adhesion, cytoskeletal organization, cell mobility and permeability, as well as mitochondrial and lysosomal activitie.…”
Section: In Vitromentioning
confidence: 99%