Microsatellite instability, prognosis and metastasis in gastric cancers from a low-risk population

Abstract excerpt

We examined 169 cases of gastric adenocarcinoma for microsatellite instability (MSI), using a panel of 8 microsatellite markers. Of these cases, 142 were from the United States, a country of relatively low risk for gastric cancer. Comparing microdissected tumors to normal cells from the same patient, we classified tumors as being microsatellite-stable (MSS) or having a low frequency of MSI (MSI-L, up to 30% of...

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