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Scientists rewrite rulebook on breast cancer in landmark global study
Date:4/18/2012

Scientists at the BC Cancer Agency and University of British Columbia have identified new breast cancer genes that could change the way the disease is diagnosed and form the basis of next-generation treatments.

Researchers have reclassified the disease into 10 completely new categories based on the genetic fingerprint of a tumour. Many of these genes could offer much-needed insight into breast cancer biology, allowing doctors to predict whether a tumour will respond to a particular treatment. Whether the tumour is likely to spread to other parts of the body or if it is likely to return following treatment.

The study, published online today in the international journal Nature*, is the largest global study of breast cancer tissue ever performed and the culmination of decades of research into the disease.

In the future, this information could be used by doctors to better tailor treatment to the individual patient.

The team at the BC Cancer Agency, in collaboration with Cancer Research UK's Cambridge Research Institute and Manitoba Institute of Cell Biology at University of Manitoba, analyzed the DNA and RNA of 2,000 tumour samples taken from women diagnosed with breast cancer between five and 10 years ago. The sheer number of tumours mapped allowed researchers to spot new patterns in the data.

Study milestones include:

  • Classified breast cancer into 10 subtypes grouped by common genetic features, which correlate with survival. This new classification could change the way drugs are tailored to treat women with breast cancer.

  • Discovered several completely new genes that had never before been linked to breast cancer. These genes that drive the disease are all targets for new drugs that may be developed. This information will be available to scientists worldwide to boost drug discovery and development.

  • Revealed the relationship between these genes and known cell signaling pa
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Contact: Brian Lin
brian.lin@ubc.ca
604-822-2234
University of British Columbia
Source:Eurekalert

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