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Cancer Epidemiol Biomarkers Prev. 2005 Aug;14(8):1853-8.

The biology of Helicobacter pylori infection, a major risk factor for gastric adenocarcinoma.

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Human Biology Division, Fred Hutchinson Cancer Research Center, 1100 Fairview Avenue North, Mailstop C3-168, PO Box 19024, Seattle, WA 98109-1024, USA.


Helicobacter pylori infection of the human stomach is the most important risk factor for development of gastric cancer. Whereas persistent viral infection leads to a number of cancers, H. pylori was the first bacteria linked to a human cancer. The exact mechanisms that lead to cancer induction are not clear, but study of the bacterial factors important for colonization and the host responses to the infection are starting to yield important clues.

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