Breakthrough in cancer screening
5/28/2007 London, England Mark Henderson and Lewis Smith The Times (www.timesonline.co.uk) A revolution in cancer screening and treatment within 15 years is heralded today with the announcement of a leap in the ability to identify genes that cause the disease. Researchers are confident that their findings will allow a screening programme, in which the inherited risk of developing cancer can be assessed for every patient, to be in place in an estimated 12-15 years. Four common genes were identified and a fifth is on the verge of being pinpointed by researchers investigating the causes of breast cancer, almost doubling the number of known rogue genes. One of the new genes, when found in a mutated form, increases the risk of developing the cancer by up to 60 per cent — giving a woman a one in six chance of the disease. Its most damaging variant is carried by one in six women, making it much more common than previously identified genes that contribute to breast cancer. The success of a new “trawling technique” to assess 200,000 blocks of DNA simultaneously instead of one by one is expected to transform the search for treatments for all common cancers. While the research concentrated on identifying genes linked to breast cancer, the same technique can equally well be used for other types of the disease and work has already started on applying it to prostate, bowel and lung cancer. One scientist described the findings as the most important in breast cancer genetics since [...]