Abstract
Since 1997, postnatal vasculogenesis has been purported to be an important mechanism for neoangiogenesis via bone marrow (BM)-derived circulating endothelial progenitor cells (EPCs). Based on this paradigm, EPCs have been extensively studied as biomarkers to assess severity of cardiovascular disease and as a cell-based therapy for several human cardiovascular disorders. In the majority of studies to date, EPCs were identified and enumerated by two primary methodologies; EPCs were obtained and quantified following in vitro cell culture, or EPCs were identified and enumerated by flow cytometry. Both methods have proven controversial. This review will attempt to outline the definition of EPCs from some of the most widely cited published reports in an effort to provide a framework for understanding subsequent studies in this rapidly evolving field. We will focus this review on studies that used cell culture techniques to define EPCs.
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Acknowledgements
This study was supported by NINDS P50 NS052606 (DAI), NF043019 Department of Defense (DAI), W81XWH-05-1-0161, Riley Children's Foundation (DAI, MCY), P30 CA82709 (DAI), NIH 1 P01 HL085036 (MCY and DAI), R21 HL088885 NIH/NHLBI (DAI). All authors have no competing financial interests to disclose.
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Prater, D., Case, J., Ingram, D. et al. Working hypothesis to redefine endothelial progenitor cells. Leukemia 21, 1141–1149 (2007). https://doi.org/10.1038/sj.leu.2404676
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DOI: https://doi.org/10.1038/sj.leu.2404676
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