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- W2017381103 abstract "Several studies have found that the promoter CpG island is frequently methylated in gastric cancer. The CpG island methylator phenotype (CIMP) defines concordant methylation of multiple promoter CpG island loci in a subset of gastric cancer. However, the relationship between CIMP and lymph node metastasis in gastric cancer is unknown. Our study aimed to characterize the role of CIMP in lymph node metastasis. Clinical specimens from 120 patients were analyzed and PCR was used to detect the methylation status of five genes ( ALX4 , TMEFF2 , CHCHD10 , IGFBP3 , and NPR1 ). We measured the level of mRNA for the five genes by real‐time RT‐PCR. Microsatellite instability and Helicobacter pylori infection status were assayed by capillary electrophoresis and real‐time PCR, respectively. DNA methylation in the five genes was correlated with low expression of the respective mRNA. With CIMP as the dependent variable, CIMP‐high gastric cancer tended to show more distant lymph node metastasis, higher pathologic tumor classification, more pathologic metastasis, and higher pathologic TNM status. Microsatellite instability and H. pylori status were not significant predictors of prognosis. CIMP‐high gastric cancer showed significantly worse survival compared with that of CIMP‐low/CIMP‐negative gastric cancer ( P < 0.001). Our results show that there is an association between CIMP status and lymph node metastasis in gastric cancer and CIMP‐high was an independent prognostic factor. ( Cancer Sci 2012; 103: 73–79)" @default.
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- W2017381103 date "2011-11-24" @default.
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- W2017381103 title "High CpG island methylator phenotype is associated with lymph node metastasis and prognosis in gastric cancer" @default.
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- W2017381103 doi "https://doi.org/10.1111/j.1349-7006.2011.02129.x" @default.
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