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Phosphorylation of Helicobacter pylori CagA in patients with gastric ulcer and gastritis
被引:2
|作者:
Cheng, KS
[1
]
Lu, MC
[1
]
Tang, HL
[1
]
Chou, FT
[1
]
机构:
[1] China Med Coll Hosp, Dept Internal Med, Div Gastroenterol, Taichung 40421, Taiwan
关键词:
type IV phosphorylation;
pathogenicity island;
gastritis;
gastric ulcer;
D O I:
10.1007/BF02850057
中图分类号:
R-3 [医学研究方法];
R3 [基础医学];
学科分类号:
1001 ;
摘要:
The effects of Helicobacter pylori infection are strongly associated with chronic gastritis, gastric and duodenal ulcer, gastric cancer, and MALT lymphoma. The microorganism has been classified as a type I carcinogen by the World Health Organization. Varying clinical results from H. pylori infection are believed due, in part, to differences in virulence among species. The cag pathogenicity island is a complex of virulent genes and a coding region for the type IV phosphorylated secretion system. Through this system, many virulent gene products or proteins are phosphorylated into the host cells. This study demonstrated the positive CagA-phosphorylation effect of H. pylori in patients with chronic gastritis and benign gastric ulcer and revealed significantly different rates of CagA phosphorylation between these two diseases (P<.05).
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页码:85 / 90
页数:6
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