Figure 3.
Human “endothelial progenitor cells” (EPC) have been identified using monoclonal antibodies or specific ligands to detect numerous cell surface antigens. Three key antigens CD34, AC133, and KDR are the most frequently utilized as markers for human EPC. No unique antigen has been reported that can discriminate the human EPC from other cell lineages (many of the above antigens are present on blood cells).
