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Cancer Stem Cells Created in Lab
Date:4/9/2008

Experts say discovery could unlock secrets of cancer one day

WEDNESDAY, April 9 (HealthDay News) -- Researchers at Stanford University have succeeded in transforming skin cells into what appear to be cancer stem cells, in a feat that could propel cancer research forward.

Cancer stem cells are thought to start the unhindered proliferation of cells which ultimately results in cancer.

"This has the potential for unlocking some of the secrets of cancer," said Dr. Len Lichtenfeld, deputy chief medical officer of the American Cancer Society, which supported the study.

"This means that now you have a good way to study cancer cells and the mechanisms involved versus getting a piece of the tumor," added Paul Sanberg, distinguished professor of neurosurgery and director of the University of South Florida Center for Aging and Brain Repair in Tampa. "Here, you have more control, more ability to look at genetic consequences and the effects of developing new therapies."

"This might allow you to identify cancers that are going to be more aggressive earlier on and allow you to tailor therapies," noted Dr. Fabrice Roegiers, co-director of the Keystone Program for Epigenetics and Progenitor Cells at Fox Chase Cancer Center in Philadelphia. "In the future, being able to identify which cancers are really being driven by the stem cell population will allow us to target those sooner."

The work, published in the April 10 issue of Cell Stem Cell, also noted that cancer stem cells are closer to embryonic stem cells (which can develop into all tissue types) than adult stem cells (which are more limited in what types of tissue they can become). This discovery could shed light on how tumors originate.

Thus far, however, researchers have been hindered in their efforts to understand this type of cell, because they are rare and difficult to grow in the lab. And, added Roegiers, there is still some controversy
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