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Embryonic Stem Cells/Induced Pluripotent Stem Cells
Article first published online: 26 AUG 2009
Copyright © 2009 AlphaMed Press
Volume 27, Issue 11, pages 2675–2685, November 2009
How to Cite
Tian, X., Hexum, M. K., Penchev, V. R., Taylor, R. J., Shultz, L. D. and Kaufman, D. S. (2009), Bioluminescent Imaging Demonstrates That Transplanted Human Embryonic Stem Cell-Derived CD34+ Cells Preferentially Develop into Endothelial Cells. STEM CELLS, 27: 2675–2685. doi: 10.1002/stem.204
Author contributions: X.T.: Conception and design, collection and/or assembly of data, data analysis and interpretation, manuscript writing; M.K.H.: collection and/or assembly of data, data analysis and interpretation; V.R.P. and R.J.T: collection and/or assembly of data; L.D.S.: financial support, provision of study material or patients; D.S.K.: conception and design, financial support, data analysis and interpretation, manuscript writing, final approval of manuscript.
Disclosure of potential conflicts of interest is found at the end of this article.
First published online in STEM CELLS EXPRESS August 26, 2009.
- Issue published online: 6 NOV 2009
- Article first published online: 26 AUG 2009
- Accepted manuscript online: 26 AUG 2009 12:00AM EST
- Manuscript Accepted: 11 AUG 2009
- Manuscript Received: 15 FEB 2009
- NIH. Grant Numbers: HL77923, HL77642
- Leukemia Research Fund of the University of Minnesota Masonic Cancer Center
- Human embryonic stem cells;
- Hematopoietic cells;
- Endothelial cells;
- Bioluminescent imaging
Human embryonic stem cells (hESCs) provide an important resource for novel regenerative medicine therapies and have been used to derive diverse cell populations, including hematopoietic and endothelial cells. However, it remains a challenge to achieve significant engraftment of hESC-derived blood cells when transplanted into animal models. To better understand mechanisms that enhance or limit the in vivo developmental potential of hESC-derived cells, we utilized hESCs that express firefly luciferase (luc) to allow noninvasive, real-time bioluminescent imaging of hESC-derived CD34+ cells transplanted into the liver of neonatal immunodeficient mice. Serial imaging demonstrated stable engraftment and expansion of the luc+ hESC-derived cells in vivo over several months. While we found that these hESC-derived CD34+ cells have bipotential ability to generate both hematopoietic and endothelial lineages in vitro, these studies demonstrate preferential differentiation into endothelial cells in vivo, with only low levels of hematopoietic cell engraftment. Therefore, these studies reveal key differences in the developmental potential of hESC-derived cells using in vitro and in vivo analyses. Although transplanted hESC-derived CD34+ cells are well-suited for revascularization therapies, additional measures are needed to provide higher levels of long-term hematopoietic engraftment. STEM CELLS 2009;27:2675–2685