Source: University of California - Los Angeles Health Sciences
Date: August 2, 2012
Summary:
UCLA stem cell researchers have found for the first time a surprising and unexpected plasticity in the embryonic endothelium, the place where blood stem cells are made in early development. Scientists found that the lack of one transcription factor, a type of gene that controls cell fate by regulating other genes, allows the precursors that normally generate blood stem and progenitor cells in blood forming tissues to become something very unexpected -- beating cardiomyocytes, or heart muscle cells.
The finding is important because it suggests that the endothelium can serve as a source of heart muscle cells. The finding may provide new understanding of how to make cardiac stem cells for use in regenerative medicine. The two-year study is published Aug. 3, 2012 in the peer-reviewed journal Cell.
