H. pylori infection, inflammation and gastric cancer
- PMID: 24557546
- DOI: 10.1007/s12029-014-9583-1
H. pylori infection, inflammation and gastric cancer
Abstract
Introduction: A strong association between chronic infection, inflammation, and cancer has been suggested.
Discussion: Helicobacter pylori, a microaerophilic gram negative bacterium, infects about half the world's population. It has been defined as a definitive carcinogen in the pathogenesis of gastric cancer. H. pylori evades the host immune responses and persists in the stomach leading to gastritis gastric atrophy and sometimes gastric cancer.
Conclusion: Chronic H. pylori infection causes gastric cancer via two mechanisms: the presence of virulence factors and the induction of chronic inflammation which ultimately leads to neoplastic transformation.
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