Role of Endothelial Nitric Oxide in Bone Marrow-Derived Progenitor Cell Mobilization
Mobilization and recruitment of bone marrow-derived progenitor cells (BMDPCs) play an important role in postischemic tissue repair. Patients with coronary artery disease (CAD) or peripheral vascular disease (PVD) exhibit endothelial dysfunction, and as a result are likely to have a reduced number of progenitor cells mobilized in their peripheral circulation following ischemic injury. Identification of eNOS independent pathways for BMDPC mobilization may have important therapeutic value in this patient population. To identify such mechanisms we investigated the effect of granulocyte-colony stimulating factor (GCSF) and stem cell factor (SCF) in eNOS-KO mice with and without surgical hind-limb ischemia. Our results suggest that BMDPC mobilization can be achieved via activation of NO-independent pathways.
KeywordsBone marrow-derived progenitor cells VEGF G-CSF eNOS CLI
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