Date:   2/19/2006 10:22:48 PM ( 19 y ago)
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URL:   https://www.curezone.org/forums/fm.asp?i=338253

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An *undifferentiated* stem cell can assume the role of any cell in the body. A differentiated cell is one that has a specific role (i.e. stomach, brain, etc.). Differentiation is when a stem cell changes into a specific 'differentiated' cell. In the normal situation, the stem cells differentiate *properly* and become normal cells of the tissue/organ in question. In the cancer, the stem cell failed to differentiate properly and has become something in between a stem cell and a normal cell, it is both and neither. It can move through the body freely, and plant anywhere like a stem cell. But it has assumed a partial role as a cell of the affected organ.

If you have read Kelley's work on trophoblasts, you see that a trophoblast is a stem cell, but in Kelley's time, we did not fully understand the mechanics.
 

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