Journal
CELLULAR AND MOLECULAR LIFE SCIENCES
Volume 75, Issue 19, Pages 3507-3520Publisher
SPRINGER BASEL AG
DOI: 10.1007/s00018-018-2871-3
Keywords
Mesenchymoangioblasts; Human pluripotent stem cells; Embryonic stem cells; Induced pluripotent stem cells; Mesoderm development; Mesenchymal stem cells; Mesoangioblast; Mesospheres; Hemangioblasts; Cardiovascular progenitors; Pericytes; Smooth muscles; Embryonic mesenchyme
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Funding
- National Institute of Health [U01HL134655, U01HL099773, P51 RR000167]
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Mesenchymoangioblast (MB) is the earliest precursor for endothelial and mesenchymal cells originating from APLNR(+)PDGFR alpha+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 PDGFR beta(+)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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