Discovery may lead to new therapies for leukemia, other blood disorders
Researchers from the University of Pennsylvania School of Medicine found that a protein called NF-Ya activates several genes known to regulate the development of hematopoietic stem cells (HSC), or blood-producing stem cells, in bone marrow. Knowing the details of this pathway may one day lead to new treatments for such blood diseases as leukemia, as well as a better understanding of how HSCs work in the context of bone-marrow and peripheral-stem-cell transplantation. The authors published their findings in the early August issue of the Proceedings of the National Academy of Sciences.
"Understanding the biology behind how the body precisely controls stem-cell fate is one of the most important issues in stem-cell biology," says senior author Stephen G. Emerson, MD, PhD, Associate Director of Clinical Research for Penns Abramson Cancer Center and Chief of the Division of Hematology-Oncology. When HSCs divide, they have one of three fates: develop into two more stem cells, which is called self-renewal; differentiate to become one of several mature blood-cell types; or strike a balance in which one daughter cell becomes an HSC and the other becomes a mature blood-cell type.
Karen Kreeger | EurekAlert!
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