A role for altered phagosome maturation in the long-term persistence of Helicobacter pylori infection
Date
2012
Authors
Borlace, G.
Keep, S.
Prodoehl, M.
Jones, H.
Butler, R.
Brooks, D.
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Journal article
Citation
American Journal of Physiology - Gastrointestinal and Liver Physiology, 2012; 303(2):G169-G179
Statement of Responsibility
Glenn N. Borlace, Stacey J. Keep, Mark J. R. Prodoehl, Hilary F. Jones, Ross N. Butler, and Doug A. Brooks
Conference Name
Abstract
The vigorous host immune response that is mounted against Helicobacter pylori is unable to eliminate this pathogenic bacterium from its niche in the human gastric mucosa. This results in chronic inflammation, which can develop into gastric or duodenal ulcers in 10% of infected individuals and gastric cancer in 1% of infections. The determinants for these more severe pathologies include host (e.g., high IL-1β expression polymorphisms), bacterial [e.g., cytotoxicity-associated gene (cag) pathogenicity island], and environmental (e.g., dietary nitrites) factors. However, it is the failure of host immune effector cells to eliminate H. pylori that underlies its persistence and the subsequent H. pylori-associated disease. Here we discuss the mechanisms used by H. pylori to survive the host immune response and, in particular, the role played by altered phagosome maturation.
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Copyright © 2012 the American Physiological Society