Embryo test to cut cancer risk, by Mary Papadakis, June 27, 2004.
Using embryos without faulty forms of genes BRCA1 and BRCA2 – also linked to ovarian cancer – would cut the risk of a child developing breast cancer …
Professor Bob Williamson said yesterday that screening for gene defects was a major progression for women prone to breast and, to a lesser degree, ovarian cancers.
“This is exciting because it is one more advance based on the human genome project that allows people to avoid a gene mistake that passes on a serious disease to their children,” he said. “This is not a test for a perfect baby,” he said.
“It’s a test to see whether a baby can inherit a very serious disease. “Most breast cancers are not due to these mutations. BRCA1 and BRCA2 account for about 5 per cent,” he said.
This will be helpful for people that already know that they have the BRCA1 & BRCA2 gene mutation. But if only 5% of breast cancer cases are caused by mutations on these genes, they need to find the other genes that cause breast cancer.