Fig 1: Characteristics of EPCs. (A) Fluorescence-activated cell sorting revealed that EPCs used in the present study were positive for CD34 and KDR, whereas they were negative for CD45. (B) Typical features of EPCs at day 1, 4, 7 and 14. (C) EPCs could take up ac-LDL and bind to UEA-1. Scale bar, 150 µm. ac-LDL, acetylated low-density lipoprotein; EPCs, endothelial progenitor cells; KDR, kinase insert domain receptor; UEA-1, Ulex europaeus agglutinin I.