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  • Title: Causes and consequences of microsatellite instability in gastric carcinogenesis.
    Author: Velho S, Fernandes MS, Leite M, Figueiredo C, Seruca R.
    Journal: World J Gastroenterol; 2014 Nov 28; 20(44):16433-42. PubMed ID: 25469011.
    Abstract:
    Loss of DNA mismatch repair (MMR) function, due to somatic or germline epi/genetic alterations of MMR genes leads to the accumulation of numerous mutations across the genome, creating a molecular phenotype known as microsatellite instability (MSI). In gastric cancer (GC), MSI occurs in about 15% to 30% of the cases. This review summarizes the current knowledge on the molecular mechanisms underlying the acquisition of MSI in GC as well as on the clinic, pathologic and molecular consequences of the MSI phenotype. Additionally, current therapeutic strategies for GC and their applicability in the MSI subset are also discussed.
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