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Updated: May 17, 2026

Mouse Models Of Helicobacter Infection And Gastric Pathologies
Published on: October 18, 2018
Helicobacter pylori infection and gastric carcinogenesis in rodent models
Tetsuya Tsukamoto1, Takeshi Toyoda, Tsutomu Mizoshita
1Department of Diagnostic Pathology, Fujita Health University School of Medicine, 1-98 Dengakugakubo, Kutsukake-cho, Toyoake, Aichi 470-1192, Japan. ttsukamt@fujita-hu.ac.jp
Abstract:
Helicobacter pylori infection is an important factor for gastric carcinogenesis in human. In carcinogen-treated Mongolian gerbils, H. pylori infection enhances stomach carcinogenesis, while infection alone induced severe hyperplasia called heterotopic proliferative glands. A high-salt diet or early acquisition of the bacteria exacerbates inflammation and carcinogenesis. Oxygen radical scavengers or anti-inflammatory chemicals as well as eradication of H. pylori are effective to prevent carcinogenesis. H. pylori-associated inflammation induces intestinal metaplasia and intestinalization of stomach cancers independently. It is necessary to control cancer development not only in H. pylori-positive cases but also in H. pylori-negative metaplastic gastritis.
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