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Nat Genet. 2010 May;42(5):410-4. doi: 10.1038/ng.569. Epub 2010 Apr 18.

Germline mutations in breast and ovarian cancer pedigrees establish RAD51C as a human cancer susceptibility gene.

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  • 1Department of Obstetrics and Gynecology, Division of Tumor Genetics, Klinikum rechts der Isar der Technischen Universitaet Muenchen, Munich, Germany. alfons.meindl@lrz.tu-muenchen.de

Abstract

Germline mutations in a number of genes involved in the recombinational repair of DNA double-strand breaks are associated with predisposition to breast and ovarian cancer. RAD51C is essential for homologous recombination repair, and a biallelic missense mutation can cause a Fanconi anemia-like phenotype. In index cases from 1,100 German families with gynecological malignancies, we identified six monoallelic pathogenic mutations in RAD51C that confer an increased risk for breast and ovarian cancer. These include two frameshift-causing insertions, two splice-site mutations and two nonfunctional missense mutations. The mutations were found exclusively within 480 pedigrees with the occurrence of both breast and ovarian tumors (BC/OC; 1.3%) and not in 620 pedigrees with breast cancer only or in 2,912 healthy German controls. These results provide the first unambiguous evidence of highly penetrant mutations associated with human cancer in a RAD51 paralog and support the 'common disease, rare allele' hypothesis.

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PMID:
20400964
[PubMed - indexed for MEDLINE]
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