alexa The CHEK2 1100delC mutation identifies families with a hereditary breast and colorectal cancer phenotype.
Oncology

Oncology

Archives of Surgical Oncology

Author(s): MeijersHeijboer H, Wijnen J, Vasen H, Wasielewski M, Wagner A,

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Abstract Because of genetic heterogeneity, the identification of breast cancer-susceptibility genes has proven to be exceedingly difficult. Here, we define a new subset of families with breast cancer characterized by the presence of colorectal cancer cases. The 1100delC variant of the cell cycle checkpoint kinase CHEK2 gene was present in 18\% of 55 families with hereditary breast and colorectal cancer (HBCC) as compared with 4\% of 380 families with non-HBCC (P<.001), thus providing genetic evidence for the HBCC phenotype. The CHEK2 1100delC mutation was, however, not the major predisposing factor for the HBCC phenotype but appeared to act in synergy with another, as-yet-unknown susceptibility gene(s). The unequivocal definition of the HBCC phenotype opens new avenues to search for this putative HBCC-susceptibility gene.
This article was published in Am J Hum Genet and referenced in Archives of Surgical Oncology

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