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Published on: March 10, 2015
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Inflammation and Digestive Cancer.
Helge Waldum1, Reidar Fossmark1
1Department of Clinical and Molecular Medicine, Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology, 7030 Trondheim, Norway.
International Journal of Molecular Sciences
|September 9, 2023
Summary
Chronic inflammation in digestive organs like the stomach and liver can lead to cancer. This review examines how chronic gastritis, particularly from Helicobacter pylori, contributes to digestive organ carcinogenesis.
Area of Science:
- Gastroenterology and Oncology
- Mechanisms of Carcinogenesis
Background:
- Chronic inflammation is a known risk factor for cancer development in digestive organs, including the stomach, colon, and liver.
- Conditions such as chronic hepatitis, inflammatory bowel disease, and chronic gastritis predispose individuals to malignancy.
Purpose of the Study:
- To review the mechanisms by which chronic inflammation contributes to carcinogenesis in digestive organs.
- To focus on chronic gastritis, exploring its role in cancer development, particularly in relation to Helicobacter pylori infection.
Main Methods:
- Literature review focusing on chronic inflammatory conditions and their link to digestive organ cancers.
- Analysis of four proposed mechanisms linking chronic inflammation to malignancy: genotoxicity of the cause, genotoxicity of inflammatory mediators, compensatory proliferation, and hormonal disturbances.
Main Results:
- Hepatitis B virus genotoxicity is a key factor in hepatocellular cancer.
- Viral infections are central to the etiology of inflammatory bowel diseases and associated malignancies.
- Helicobacter pylori, a dominant cause of chronic gastritis, is not directly genotoxic but may induce cancer via atrophic oxyntic gastritis and hypergastrinemia.
Conclusions:
- Chronic inflammation plays a significant role in the carcinogenesis of digestive organs through multiple mechanisms.
- Helicobacter pylori-induced chronic gastritis represents a critical pathway to stomach cancer, primarily through hypergastrinemia.
- Understanding these inflammatory pathways is crucial for developing strategies to prevent digestive organ cancers.
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