Article
Microsatellite Instability Testing in Colorectal Carcinoma: Choice of Markers Affects Sensitivity of Detection of Mismatch Repair–Deficient Tumors
15 Mar 2005
Abstract excerpt
PURPOSE: Microsatellite instability (MSI) is found in 10% to 15% of sporadic colorectal tumors and is usually caused by defects in DNA mismatch repair (MMR). In 1997, a panel of microsatellite markers including mononucleotide and dinucleotide repeats was recommended by a National Cancer Institute workshop on MSI. We investigated the relationship between instability of these markers and MMR protein expression in a...
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