Researchers find 2 different types of blood stem cells

All stem cells are not created equal, a new study finds. 2 different types of self-renewing blood cells have been marked in mice, muddying a simplistic sight of stem cell categories. Knowing how these dissimilar types of stem cells behave may help scientists better understand & treat blood diseases.

“The description of a stem cell, as you look closer, gets more complicated,” comments stem cell researcher Timm Schroeder for Environmental Health’s Institute of Stem Cell study in Neuherberg. The latest learn, appearing March 5 in Stem Cell, adds to a growing body of confirmation that “black & white classifications might not be right,” says Schroeder.

In the blood, millions of diverse cells die each & every second. To stay up with this loss, stem cells frequently divide to create the correct balance of cell types, which include oxygen-carrying red blood cells & a menagerie of immune cells.

For the longest time, peoples thought there was only one type of blood stem cell in the bone marrow that repeatedly replenished the blood system throughout the life of a person. Recent studies show that blood stem cells have distinct behaviors, but no one had been able to pinpoint the various kinds of cells. “We’re the first group to truly identify those using different markers,” Challen says.

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