The mesenchymoangioblast,mesodermal precursor for mesenchymal and endothelial cells |
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Authors: | Igor I. Slukvin Akhilesh Kumar |
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Affiliation: | 1.Wisconsin National Primate Research Center,University of Wisconsin,Madison,USA;2.Department of Cell and Regenerative Biology, School of Medicine and Public Health,University of Wisconsin,Madison,USA;3.Department of Pathology and Laboratory Medicine,University of Wisconsin,Madison,USA |
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Abstract: | Mesenchymoangioblast (MB) is the earliest precursor for endothelial and mesenchymal cells originating from APLNR+PDGFRα+KDR+ mesoderm in human pluripotent stem cell cultures. MBs are identified based on their capacity to form FGF2-dependent compact spheroid colonies in a serum-free semisolid medium. MBs colonies are composed of PDGFRβ+CD271+EMCN+DLK1+CD73? primitive mesenchymal cells which are generated through endothelial/angioblastic intermediates (cores) formed during first 3–4 days of clonogenic cultures. MB-derived primitive mesenchymal cells have potential to differentiate into mesenchymal stromal/stem cells (MSCs), pericytes, and smooth muscle cells. In this review, we summarize the specification and developmental potential of MBs, emphasize features that distinguish MBs from other mesenchymal progenitors described in the literature and discuss the value of these findings for identifying molecular pathways leading to MSC and vasculogenic cell specification, and developing cellular therapies using MB-derived progeny. |
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