A hard-to-treat form of breast cancer sometimes called “triple negative” is more like certain kinds of ovarian and lung cancers than like other breast cancers, and so doctors may be able to treat it with drugs known to work in tumors in these different tissues, suggests the latest report from the Cancer Genome Atlas.
Much of what genomics is teaching us about cancer is that every cancer type and even every tumor is different at the genetic and molecular level (not to mention that different parts of a tumor can have molecular changes not found throughout). But researchers are also finding that tumors from different parts of the body can be more alike than tumors found in the same organ, as was shown in Sunday’s report in Nature.
“We’re going to move farther and farther from the practice of classifying cancers by where they arise and more and more by what their molecular composition and wiring is all about.”
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