Additional file 1: Figure S1. of EphA1 activation promotes the homing of endothelial progenitor cells to hepatocellular carcinoma for tumor neovascularization through the SDF-1/CXCR4 signaling pathway

Identification of EPCs. A. Representative images of EPCs at the 7th day (top panel) and 21st (bottom panel) day after separation from peripheral blood. B. EPCs were characterized according to the presence of endothelial-specific markers, such as CD31, CD133, eNOS, or VEGFR2, or the absence of mesenchymal-specific markers, such as CD45 and CD90. Scale bar: 50 μm. C. Representative images of EPC’s uptake of DiI-ac-LDL and binding of FITC-UEA-1. Scale bar: 50 μm. D. Representative images showing the capacity of EPCs to induce tube formation on Matrigel. (JPG 95 kb)