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Scientists Turn Mouse Skin Cells Into Nerve Cells
Date:1/27/2010

Finding could revolutionize stem cell therapy, but much research remains to be done

WEDNESDAY, Jan. 27 (HealthDay News) -- Scientists at Stanford University have succeeded in creating brain nerve cells directly out of skin cells taken from the tails of adult mice.

The new approach could revolutionize human stem cell therapy and science's understanding of how cells choose and maintain their specialized roles in the body, the researchers said.

The findings also seem to radically upturn established thinking about how cells become cells, and potentially avoid the controversial approach of using embryonic stem cells for cellular therapy. And the research could conceivably open new doors in the future to treating diseases such as Alzheimer's and Parkinson's, the researchers said.

The researchers had not actually expected to succeed in the endeavor.

"We were blown away," said Dr. Marius Wernig, senior author of a paper appearing online Jan. 27 in Nature and a member of Stanford's Institute for Stem Cell Biology and Regenerative Medicine.

"We wanted to ask the question, 'Do we have to go back in development to be able to go forward or can there be a direct way,' " he said, adding, "This is the first direct conversion that is totally artificial. It doesn't occur in nature."

Paul Sanberg, a stem cell expert and distinguished professor of neurosurgery and director of the University of South Florida Center for Aging and Brain Repair in Tampa, said, "It [the new study] really changes the idea of how one cell can change to another cell and it may change the concept of how an organism develops."

But experts were cautious in their interpretation of the findings, especially as to what they might mean for the thorny yet expanding area of stem cell research.

"From a basic point of view it's exciting because it shows that you can go straight from one differentiated cell and tra
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