Researchers distinguish two different types of blood stem cells

Red and white blood cells come from different sources

By Laura Sanders, 11:50 AM March 4, 2010

All stem cells are not created equal, a new study finds. Two distinct kinds of self-renewing blood cells have been spotted in mice, muddying a simplistic view of stem cell categories.

Knowing how these different types of stem cells behave may help scientists better understand and treat blood diseases.

“The definition of a stem cell, as you look closer, gets more complicated,” comments stem cell researcher Timm Schroeder of the German Research Center for Environmental Health’s Institute of...

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