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High microsatellite instability predicts good prognosis in intestinal-type gastric cancers

 Hyunki Kim  ;  Ji Yeong An  ;  Sung Hoon Noh  ;  Sung Kwan Shin  ;  Yong Chan Lee  ;  Hoguen Kim 
 Journal of Gastroenterology and Hepatology, Vol.26(3) : 585-592, 2011 
Journal Title
 Journal of Gastroenterology and Hepatology 
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BACKGROUND AND AIM: A subset of gastric cancers showed high microsatellite instability (MSI-H). The reported clinicopathological features of MSI-H gastric cancers are heterogeneous, and specific factors associated with prognosis have not been identified. METHODS: We analyzed the clinicopathological characteristics and prognostic factors in a large series (161 cases) of MSI-H gastric cancers, and compared the results to 315 cases of microsatellite-stable or low microsatellite-instable gastric cancers. RESULTS: The frequency of MSI-H gastric cancers was 9% (161/1786). MSI-H gastric cancers have distinct clinicopathological features, including female sex, older age, antral location, well-to-moderate differentiation, intestinal-type Lauren classification, expanding-type Ming classification, a non-signet-ring cell component, the presence of a mucinous component, a moderate-to-severe lymphoid stromal reaction, and a lower tumor stage. The MSI-H phenotype was associated with better prognosis (P = 0.044), and male sex (P = 0.035, hazard ratios [HR]: 0.23), intestinal-/mixed-type Lauren classification (P < 0.001, HR: 0.09) and lower tumor stages (1 and 2, P = 0.001, HR: 0.08) were independently-favorable prognostic factors. CONCLUSIONS: With unique clinicopathological features, intestinal-type MSI-H gastric cancers are associated with good prognosis and can be classified as a different subset of gastric cancers.
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1. Journal Papers (연구논문) > 1. College of Medicine (의과대학) > Dept. of Surgery (외과학교실)
1. Journal Papers (연구논문) > 1. College of Medicine (의과대학) > Dept. of Pathology (병리학교실)
1. Journal Papers (연구논문) > 1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실)
Yonsei Authors
김현기(Kim, Hyunki) ORCID logo https://orcid.org/0000-0003-2292-5584
김호근(Kim, Ho Keun)
노성훈(Noh, Sung Hoon) ORCID logo https://orcid.org/0000-0003-4386-6886
신성관(Shin, Sung Kwan)
이용찬(Lee, Yong Chan)
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