 This is an interesting article on cancer stem cells-apparently cancer stem cells are still just a theory.
David
"...he upshot of all this is that the stem-cell hypothesis of cancer growth looks a good one. It explains a lot of things, and allows biologists to look at tumours in a new way—almost akin to developing organs, albeit ones with no function and growth that is out of control. That insight, and a better understanding of stem-cell biology, may be the chink in cancer's armour that people have long been searching for. And that is a truly optimistic thought. "
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