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Stem cells' 'suspended' state preserved by key step, scientists report
Date:7/8/2009

arify what other molecules work in concert with the Chd1 gene to direct the process. This would aid efforts to increase the efficiency and safety of reprogramming cells. This research may also shed light on how cells transition from one type to another, a process that happens normally during embryonic development and goes astray in cancer.

"We now know that Chd1 is essential, and, so far, appears unique in its global effect, but we expect that there are major players yet to be discovered," said senior author Ramalho-Santos, UCSF assistant professor of obstetrics, gynecology and reproductive sciences, and pathology.

"If we can understand how Chd1 works, that will also tell us more about how the cells regulate their precise specialization during development, and turn on their pluripotency program during reprogramming."

The scientists conclude that embryonic stem cells exist in a dynamic state, poised between the open condition that may assure the cell's full potential, and the more constrained state that allows only certain kinds of cells to progress. Chd1, they say, is central to maintaining the open, pluripotent stem cell state.


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Contact: Jennifer O'Brien
jobrien@pubaff.ucsf.edu
415-476-2557
University of California - San Francisco
Source:Eurekalert

Page: 1 2 3

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