Endothelial precursor cells promote angiogenesis in hepatocellular carcinoma

Figure 1 Mobilization of endothelial progenitor cells into circulation. A, B: Flow cytometry analysis of circulating endothelial progenitor cells in hepatocellular carcinoma (HCC) mice (day 14, n = 7; day 21, n = 9) vs sham-operation group (day 14, n = 9; day 21, n = 11). Normal = normal mice; C, D: Dynamic changes in serum levels of vascular endothelial growth factor and colony-stimulating factor in HCC mice (n = 8). ^aP < 0.05, ^bP < 0.01 vs normal control (n = 8). CSF: Colony-stimulating factor; VEGF: Vascular endothelial growth factor.