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Microsatellite instability: application in hereditary non-polyposis colorectal cancer Saletti P; Edwin ID; Pack K; Cavalli F; Atkin WSAnn Oncol 2001[Feb]; 12 (2): 151-60Colorectal cancer (CRC) is a significant cause of mortality in Western populations. About 15% of CRC patients report a family history of the disease. Studies on individuals with a genetic predisposition to CRC have been responsible for significant advances in the understanding of this disease. Thus, although developments in molecular biology have been mainly restricted to a minority of individuals with a hereditary background, information obtained from this group may affect the diagnosis and therapy of sporadic CRCs as well. Deficiency in the DNA mismatch repair (MMR) system results in microsatellite instability (MSI). Individuals from hereditary non-polyposis colorectal cancer (HNPCC) kindreds with germline mutations in genes involved in MMR may benefit from clinical screening programs. The higher frequency of MSI in HNPCC than in sporadic tumours suggests that involvement of MMR genes in sporadic adenomas may be uncommon. Consequently|*Mutation[MESH]|Adult[MESH]|Colorectal Neoplasms, Hereditary Nonpolyposis/*genetics[MESH]|Colorectal Neoplasms/*genetics[MESH]|DNA Mutational Analysis[MESH]|DNA Repair[MESH]|Genetic Markers[MESH]|Genotype[MESH]|Humans[MESH]|Microsatellite Repeats/*genetics[MESH]|Middle Aged[MESH]|Phenotype[MESH]|Prognosis[MESH] |
