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Helicobacter pylori Infection and Gastric Cancer

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Helicobacter pylori Research

Abstract

Gastric cancer is widespread and remains a leading cause of cancer-related death worldwide. Infection with Helicobacter pylori is one of the strongest known risk factors for this malignancy. There is a high level of genetic diversity among H. pylori strains, and bacterial virulence factors play an important role in determining the risk of developing gastric adenocarcinoma following colonization with H. pylori. Infection with strains that contain a cag pathogenicity island or type s1 vacA alleles confers increased risk compared to infection with other strain types. Additional risk factors for gastric cancer include dietary factors, such as a high-salt diet and iron deficiency. H. pylori can interact with stem cell populations and in this way may promote gastric carcinogenesis. Recent studies suggest that components of the microbiome may also influence H. pylori-induced carcinogenesis. In this review article, we discuss mechanisms by which H. pylori infection can lead to gastric cancer.

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Correspondence to Richard M. Peek Jr. .

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© 2016 Springer Japan

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Peek, R.M., Wroblewski, L.E. (2016). Helicobacter pylori Infection and Gastric Cancer. In: Backert, S., Yamaoka, Y. (eds) Helicobacter pylori Research. Springer, Tokyo. https://doi.org/10.1007/978-4-431-55936-8_17

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