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Yonago Acta Med. 2014 Jun;57(2):65-72. Epub 2014 Jul 30.

Inflammation-related carcinogenesis: current findings in epidemiological trends, causes and mechanisms.

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Division of Pathological Biochemistry, Department of Biomedical Sciences, School of Life Science, Tottori University Faculty of Medicine, Yonago 683-8503, Japan ; †Chromosome Engineering Research Center, Tottori University, Yonago 683-8503, Japan.


Inflammation is a definite cancer-causing factor as revealed by cumulative basic, clinical and epidemiological studies. It is mostly induced by infectious agents. For instance, infection with papillomaviruses associates with anogenital cancers, especially cervical cancers; Helicobacter pylori infection of the stomach tends to increase the risk of stomach cancer; chronic hepatitis B & C viruses and fluke infections of the liver increase liver cancers; autoimmune diseases, e.g., inflammatory bowel diseases, associate with development of colorectal cancer, and aerial irritants (foreign bodies) such as asbestos or fine particulate matter (PM2.5) in outdoor air increase malignant pleural mesotheliomas or lung cancers. These are typical examples of inflammation-related carcinogenesis. It is apparent that the pathogens to induce inflammatory reactions in specific organs are not related to each other. However, the underlying pathogenesis in common is to induce and/or sustain inflammation. In this article, I would like to review the up-to-date findings of epidemiological trends, causes and mechanisms of inflammation-related carcinogenesis.


carcinogenesis; inflammation; mouse model


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