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NCI Cancer Center News

Sequencing approach evaluates all 24 genes implicated in breast cancer

  • Posted: October 24, 2013

Since 1994, many thousands of women with breast cancer from families severely affected with the disease have been tested for inherited mutations in BRCA1 and BRCA2. The vast majority of those patients were told that their gene sequences were normal.

With the development of modern genomics sequencing tools, the discovery of additional genes implicated in breast cancer and the change in the legal status of genetic testing for BRCA1 and BRCA2, it is now possible to determine how often families in these circumstances actually do carry cancer-predisposing mutations in BRCA1, BRCA2, or another gene implicated in breast cancer, despite the results of their previous genetic tests. The results were presented Oct. 24, by researchers from the University of Washington (which is affiliated with the Fred Hutchinson Cancer Research Center) at the American Society of Human Genetics 2013 meeting in Boston.

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