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. 2018 Oct 25;22(6):705–712. doi: 10.4196/kjpp.2018.22.6.705

Fig. 5. Synergic effects of vascular endothelial growth factor (VEGF) and fibroblast growth factor-2 (FGF-2) on tube formation from human endothelial colony forming cells (ECFCs).

Fig. 5

(A) Representative images of the tubular structures formed by ECFCs over 48 h in the presence and absence of VEGF, FGF-2, and VEGF/FGF-2 (scale bar=500 µm). (B) Graph of the tube number over 48 h in the presence and absence of VEGF, FGF-2, and VEGF/FGF-2. (C) Graph of the length per tube over 48 h in the presence and absence of VEGF, FGF-2, and VEGF/FGF-2. (D) Statistical analysis of the tube number comparing 6, 24, and 48 h. (E) Statistical analysis of the length per tube comparing 6, 24, and 48 h. The asterisk (*) indicates a significant difference (p≤0.05) between groups (n=3–4).