Results of the largest global gene study of breast cancer tissue ever performed appeared recently in Nature. These results could “…. pave the way for doctors in the future to diagnose the type of breast cancer a woman has, the types of drugs that will work, and those that won’t, in a much more precise way than is currently possible.” The authors reclassifies the disease into 10 completely new categories based on the genetic fingerprint of a patient’s tumor. Based on this new analysis, doctors should one day be able to predict survival more accurately in women with breast cancer based on these new subtypes, and better tailor treatment to the individual patient. The research, conducted jointly by teams at Cancer Research UK’s Cambridge Research Institute and the BC Cancer Agency Vancouver Canada, analysed the DNA and RNA of 2,000 tumor samples taken from women diagnosed with breast cancer between five and 10 years ago.
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