Fig. 1
![Fig. 1](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs13287-021-02324-7/MediaObjects/13287_2021_2324_Fig1_HTML.png)
EPC characteristics. a EPCs showed a typical endothelial-like cobblestone morphology after culture for 21 days. b Immunofluorescence staining showed that EPCs were positive for v-WF, CD34, and CD31 staining (bar = 150 μm). c Flow cytometric analysis showed that EPCs were positive for CD34, VEGFR2, and CD133 but negative for CD45. d EPCs could take up ac-LDL and bind to UEA-1 (bar = 100 μm)