Source: ABC News
Posted: November 24, 2006
Summary:
Current cancer therapies attack tumors as if every cell in that tumor were the same. But now, scientific evidence suggests that only a small percentage of those tumor cells are responsible for the tumor's growth. Treatments that attack the whole tumor may be off target because they aren't designed to kill the cells at fault — stem cells. Called the cancer stem-cell hypothesis, it could revolutionize the way some cancers are treated, experts said.
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