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© Research
Publication : Helicobacter

Pathogenesis of Helicobacter pylori infection

Scientific Fields
Diseases
Organisms
Applications
Technique

Published in Helicobacter - 01 Sep 2009

Costa AC, Figueiredo C, Touati E

Link to Pubmed [PMID] – 19712163

Helicobacter 2009 Sep;14 Suppl 1:15-20

Helicobacter pylori induces chronic inflammation of the gastric mucosa, but only a proportion of infected individuals develop peptic ulcer disease or gastric carcinoma. Reasons underlying these observations include differences in bacterial pathogenicity as well as in host susceptibility. Numerous studies published in the last year provided new insight into H. pylori virulence factors, their interaction with the host and consequences in pathogenesis. These include the role of bacterial genetic diversity in host colonization and persistence, outer membrane proteins and modulation of adhesin expression, new aspects of VacA functions, and CagA and its phosphorylation-dependent and -independent cellular effects. This article will also review the recent novel findings on the interactions of H. pylori with diverse host epithelial signaling pathways and events involved in the initiation of carcinogenesis, including genetic instability and dysregulation of DNA repair.

http://www.ncbi.nlm.nih.gov/pubmed/19712163