Breakthrough: In Major Analysis of Breast Cancer Genetics, 4 Disease Classes Found

Scientists reported yesterday they have completed a major analysis of the genetics of breast cancer, finding four major classes of the disease.

They hope their work will lead to more effective treatments, perhaps with some drugs already in use, in this report from NBC’s Today earlier in the day:

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The hope is that such research can reveal cancer’s genetic weaknesses for better drug targeting.

“With this study, we’re one giant step closer to understanding the genetic origins of the four major subtypes of breast cancer,” Dr. Matthew Ellis of the Washington University School of Medicine said in a statement.

Dr. Ellis is a co-leader of the research.

“Now we can investigate which drugs work best for patients based on the genetic profiles of their tumors,” he said.

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