an expandable, inducible hemangioblast state regulated by fibroblast growth factor
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2014
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Abstract
During development, the hematopoietic and vascular lineages are thought to descend from common mesodermal progenitors called hemangioblasts. Here we identify six transcription factors, Gata2, Lmo2, Mycn, Pitx2, Sox17, and Tal1, that “trap” murine cells in a proliferative state and endow them with a hemangioblast potential. These “expandable” hemangioblasts (eHBs) are capable, once released from the control of the ectopic factors, to give rise to functional endothelial cells, multilineage hematopoietic cells, and smooth muscle cells. The eHBs can be derived from embryonic stem cells, from fetal liver cells, or poorly from fibroblasts. The eHBs reveal a central role for fibroblast growth factor, which not only promotes their expansion, but also facilitates their ability to give rise to endothelial cells and leukocytes, but not erythrocytes. This study serves as a demonstration that ephemeral progenitor states can be harnessed in vitro, enabling the creation of tractable progenitor cell lines.
| Reference Key |
vereide2014steman
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|---|---|
| Authors | ;David T. Vereide;Vernella Vickerman;Scott A. Swanson;Li-Fang Chu;Brian E. McIntosh;James A. Thomson |
| Journal | nature reviews gastroenterology & hepatology |
| Year | 2014 |
| DOI |
10.1016/j.stemcr.2014.10.003
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