Identification of a breast tumor with microsatellite instability in a potential carrier of the hereditary non-polyposis colon cancer trait
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Issue Date
1995-06
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Clin. Genet. 1995, 47(6):305-10Abstract
Allelic expansion at microsatellite loci in colorectal tumor DNA indicates a genomic instability caused by defects in DNA mismatch repair. This is observed in a high proportion of tumors from individuals affected by hereditary non-polyposis colorectal carcinoma, but to a lesser extent in sporadic colorectal tumors. In this study we screened 46 colorectal tumors for replication errors (RER). Tumors from six patients were found to be RER positive, two of which had a marked family history of colon cancer. In both cases the RER + phenotype was detected in colon tumors from other family members, suggesting a germline mutation in mismatch repair genes. Additionally, RER + phenotype, distinct from that of the colon and sporadic breast tumors, was found in malignant breast tissue from the mother of one proband.Description
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http://dx.doi.org/10.1111/j.1399-0004.1995.tb03970.xae974a485f413a2113503eed53cd6c53
10.1111/j.1399-0004.1995.tb03970.x
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