Prostaglandin E2, Wnt, and BMP in gastric tumor mouse models

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概要

• 論文の詳細を見る

• The development of gastric cancer is closely associated with Helicobacter pylori (H. pylori) infection. The expression of cylooxigenase-2 (COX-2), a rate-limiting enzyme for prostaglandin biosynthesis, is induced in H. pylori-associated chronic gastritis, which thus results in the induction of proinflammatory prostaglandin, PGE2. The COX-2/PGE2 pathway plays a key role in gastric tumorigenesis. On the other hand, several oncogenic pathways have been shown to trigger gastric tumorigenesis. The activation of Wnt/ﾎｲ;-catenin signaling is found in 30-50% of gastric cancers, thus suggesting that Wnt signaling plays a causal role in gastric cancer development. Mutations in the bone morphogenetic protein (BMP) signaling pathway are responsible for the subset of juvenile polyposis syndrome (JPS) that develops hamartomas in the gastrointestinal tract. BMP suppression appears to contribute to gastric cancer development because gastric cancer risk is increased in JPS. Wnt signaling is important for the maintenance of gastrointestinal stem cells, while BMP promotes epithelial cell differentiation. Accordingly, it is possible that both Wnt activation and BMP suppression can cause gastric tumorigenesis through enhancement of the undifferentiated status of epithelial cells. Recent mouse model studies have indicated that induction of the PGE2 pathway is required for the development of both gastric adenocarcinoma and hamartoma in the Wnt-activated and BMP-suppressed gastric mucosa, respectively. This article reviews the involvement of the PGE2, Wnt, and BMP pathways in the development of gastric cancer, and gastric phenotypes that are found in transgenic mouse models of PGE2 induction, Wnt activation, BMP suppression, or a combination of these pathways. (Cancer Sci 2009; 100: 1779-1785). © 2009 Japanese Cancer Association.

• Blackwell Publishing / Japanese Cancer Association = 日本癌学会の論文
• 2009-10-10

著者

• OSHIMA Masanobu

  Division of Genetics, Cancer Research Institute, Kanazawa University

• OSHIMA Hiroko

  Division of Genetics, Cancer Research Institute, Kanazawa University

• Oshima Hiroko

  Division Of Genetics Cancer Research Institute Kanazawa University

• Oshima Masanobu

  Division Of Genetics Cancer Research Institute Kanazawa University

• Du Yu-chen

  Division Of Genetics Cancer Research Institute Kanazawa University

• OGUMA Keisuke

  Division of Genetics, Cancer Research Institute, Kanazawa University

• Oguma Keisuke

  Division Of Genetics Cancer Research Institute Kanazawa University

• Oshima Masanobu

  Department Of Pharmacology Kyoto University Graduate School Of Medicine

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