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헬리코박터 파일로리 관련 만성 위축성 위염 및 위암 발생의 진행 Helicobacter pylori-associated Chronic Atrophic Gastritis and Progression of Gastric Carcinogenesis

대한소화기학회지 2023년 82권 4호 p.171 ~ 179
임나래, 정우철,
소속 상세정보
임나래 ( Lim Na-Rae ) 

정우철 ( Chung Woo-Chul ) 

Abstract


Chronic inflammation due to a Helicobacter pylori (H. pylori) infection is a representative cause of gastric cancer that can promote gastric carcinogenesis by abnormally activating immune cells and increasing the inflammatory cytokines levels. H. pylori infections directly cause DNA double-strand breaks in gastric epithelial cells and genetic damage by increasing the enzymatic activity of cytidine deaminase. Eventually, gastric cancer is induced through dysplasia. Hypermethylation of tumor suppressor genes is an important cause of gastric cancer because of a H. pylori infection. In addition, the changes in gastric microbiota and the mucosal inflammatory changes associated with a co-infection with the Epstein-Barr virus are associated with gastric cancer development. DNA damage induced by H. pylori and the subsequent responses of gastric stem cells have implications for gastric carcinogenesis. Although the pathogenesis of H. pylori has been established, many uncertainties remain, requiring more study.

키워드

Helicobacter pylori; Inflammation; Gastric cancer

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