Figure 4 Anti-angiogenic effect of vandetanib (VAN) and cabozantinib (CAB) on the physiological development of the zebrafish sub-intestinal vein (SIV) plexus. Representative fluorescence images of the SIV basket of 72 hpf Tg(fli1a:EGFP)y1 zebrafish embryos treated for 24 h with dimethyl sulfoxide (DMSO) (a), 5 × 10−6 M VAN (b) and CAB (c). Following 24 h of VAN (d) and CAB (e) treatments at different concentrations, the number of vertical vessels comprising the SIV basket was counted and compared with that of the control (CTR) embryos. Graphed values represent the mean ± S.E.M. *** p < 0.001 versus the CTR. Embryos are shown anterior to the left.
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