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      VEGF contributes to postnatal neovascularization by mobilizing bone marrow-derived endothelial progenitor cells.

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          Abstract

          Vascular endothelial growth factor (VEGF) has been shown to promote neovascularization in animal models and, more recently, in human subjects. This feature has been assumed to result exclusively from its direct effects on fully differentiated endothelial cells, i.e. angiogenesis. Given its regulatory role in both angiogenesis and vasculogenesis during fetal development, we investigated the hypothesis that VEGF may modulate endothelial progenitor cell (EPC) kinetics for postnatal neovascularization. Indeed, we observed an increase in circulating EPCs following VEGF administration in vivo. VEGF-induced mobilization of bone marrow-derived EPCs resulted in increased differentiated EPCs in vitro and augmented corneal neovascularization in vivo. These findings thus establish a novel role for VEGF in postnatal neovascularization which complements its known impact on angiogenesis.

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          Author and article information

          Journal
          EMBO J
          The EMBO journal
          Oxford University Press (OUP)
          0261-4189
          0261-4189
          Jul 15 1999
          : 18
          : 14
          Affiliations
          [1 ] Departments of Medicine (Cardiology) and Biomedical Research, St Elizabeth's Medical Center, Tufts University School of Medicine, 736 Cambridge Street, Boston, MA 02135, USA.
          Article
          10.1093/emboj/18.14.3964
          1171472
          10406801
          4878c97b-fc9c-4a25-bab4-e17713b35cd1
          History

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