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Metachronous Gastric Cancer After Endoscopic Resection and Successful Eradication Helicobacter pylori Eradication and its Association with Aberrant DNA Methylation of the Non-cancerous Gastric Mucosae Takeshi Nakajima 1 , Masahiro Maeda 2 , Genki Mori 1,3 , Kiyoshi Asada 2,4 , Shigeki Sekine 5 , Taichi Shimazu 6 , Ichiro Oda 1 , Shigetaka Yoshinaga 1 , Haruhisa Suzuki 1 , Satoru Nonaka 1 , Seiichiro Abe 1 , Toshikazu Ushijima 2 , Yutaka Saito 1 1Endoscopy Division, National Cancer Center Hospital, Tokyo 2Epigenomics Division, National Cancer Center Research Institute, Tokyo 3Department of Internal Medicine, Iki City Hospital, Iki, Japan 43rd Department of Internal Medicine, Nara Medical University, Kashihara, Japan 5Pathology Division, National Cancer Center Hospital, Tokyo 6Center for Public Health Sciences, National Cancer Center, Tokyo Keyword: 胃癌 , DNAメチル化 , ESD , 異時性多発胃癌 , 除菌後胃癌 pp.805-813
Published Date 2016/5/25
DOI https://doi.org/10.11477/mf.1403200647
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 Metachronous gastric cancer risk following ESD(endoscopic submucosal dissection)for early gastric cancer is reduced via Helicobacter pylori(H. pylori)eradication ; however, the 5-year cumulative incidence of metachronous gastric cancer remains as high as 15%. Nevertheless, a risk assessment for individualizing surveillance method has not yet been established. DNA methylation observed in gastric cancer in a cross-sectional study has additionally been found in non-cancerous mucosa, and its degree(methylation level)was found to be correlated with gastric cancer risk. Last year, the usefulness of the methylation level as a marker of metachronous cancer risk was shown in a multicenter prospective study in post-ESD gastric cancer patients. Currently, another multicenter prospective study in patients following H. pylori eradication has been started, and is aimed at the practical use of methylation level as a marker for gastric cancer risk assessment.


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電子版ISSN 1882-1219 印刷版ISSN 0536-2180 医学書院

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