Helicobacter pylori infection and gastric cancer: host, bug, environment, or all three?

Helicobacter pylori is a common bacterial pathogen that colonizes the gastric mucosa of over 50% of the world's population. All infected individuals exhibit chronic gastric inflammation, and approximately 1% of patients develop gastric cancers, including adenocarcinomas and mucosal-associated l...

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Bibliographic Details
Published in:Current gastroenterology reports 2004-12, Vol.6 (6), p.429-435
Main Authors: Menaker, Rena J, Sharaf, Amy A, Jones, Nicola L
Format: Article
Language:English
Subjects:
Adenocarcinoma - microbiology
Adenocarcinoma - physiopathology
Apoptosis
Bacterial Proteins - physiology
Cadherins - metabolism
Gastric cancer
Helicobacter Infections - complications
Helicobacter Infections - physiopathology
Helicobacter pylori
Hepatocyte Growth Factor - physiology
Humans
NF-kappa B - physiology
Polymorphism, Genetic
Signal Transduction - physiology
Stomach Neoplasms - microbiology
Stomach Neoplasms - physiopathology
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Summary:Helicobacter pylori is a common bacterial pathogen that colonizes the gastric mucosa of over 50% of the world's population. All infected individuals exhibit chronic gastric inflammation, and approximately 1% of patients develop gastric cancers, including adenocarcinomas and mucosal-associated lymphoid tissue lymphomas. In 1994, the World Health Organization International Agency for Research on Cancer classified H. pylori as a type I, or definite carcinogen. Because the prevalence of gastric cancers among H. pylori-infected patients varies between individuals, countries, and geographic areas, H. pylori disease-related outcomes are believed to be determined by an interplay between host factors, bacterial factors, and their interaction with the environment. This review highlights recent advances in our knowledge on H. pylori disease pathogenesis, focusing on the role of the host, bacteria, and environment in the development of gastric carcinoma.
ISSN:1522-8037
1534-312X
DOI:10.1007/s11894-004-0063-9