Özet:

Helicobacter pylori are gut bacteria colonize in the epithelial cell lining of the stomach and persist there for long du­ration. Around two-thirds of the world\'s populations are infected with H. pylori and cause more than 90 percent of ulcers. The development of persistent inflammation is the main cause of chronic gastritis that finally results in a severe consequence known as stomach cancer. Two major virulence factors cytotoxin-associated gene product (cagA) and the vacuolating toxin (vacA) are mostly investigated as their close association with gastric carcinoma. In this review, host im­munity against H. pylori infection and their evasion mechanism are intensely explored. It is the fact, that understanding pin point molecular mechanisms of any infection is critical to develop novel strategies to prevent pertinent diseases. .

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