Roles of the DNA mismatch repair genes in colorectal tumorigenesis

DNA mismatch repair genes and colorectal cancer.

Epimutation in DNA Mismatch Repair (MMR) Genes

Significance of Dna Mismatch Repair Genes and Microsatellite Instability in Colorectal Carcinoma in Ibadan, Nigeria

Background: Though the incidence of colorectal carcinoma (CRC) is relatively uncommon in Nigeria, compared to the developed countries, recent studies indicate an increasing trend. Our patients often present at an earlier age, which has important implications for the pathogenesis in Nigeria. MLH1, MSH2, MSH6, PMS2 are the commonly mutated MMR genes in descending order of frequency, with PMS1 and...

DNA mismatch repair defects: role in colorectal carcinogenesis.

The inactivation of the DNA mismah repair (MMR) system, which is associated with the predisposition to the hereditary non-polyposis colorectal cancer (HNPCC), has also been documented in nearly 20% of the sporadic colorectal cancers. These tumors are characterized by a high frequency of microsatellite instability (MSI(+) phenotype), resulting from the accumulation of small insertions or deletio...

Polymorphism of DNA mismatch repair genes in endometrial cancer.

UNLABELLED Endometrial cancer (EC) is the second most common malignancy associated with hereditary non-polyposis colorectal cancer (HNPCC) family. The development of HNPCC is associated with defects in DNA mismatch repair (MMR) pathway resulting in microsatellite instability (MSI). MSI is present in a greater number of EC than can be accounted for by inherited MMR mutations, therefore alternati...