Figure 4. Effects of Dmab on HUVEC tubule formation. Representative photomicrographs of HUVECs plated onto Matrigel after 24 h of treatment with (A) vehicle control; (B) 0.31 μM Dmab; (C) 0.62 μM Dmab; (D) 1.25 μM Dmab; (E) 2.5 μM Dmab; (F) 5 μM Dmab; (G) 10 μM Dmab; (H) 20 μM Dmab; (I) 40 μM Dmab; (J) 80 μM Dmab; (K) 160 μM Dmab. Pictures were taken at magnification 10 × .