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. 2016 Mar 8;148(1):83–91. doi: 10.1111/imm.12589

Figure 8.

Figure 8

Interleukin‐33 (IL‐33) induced angiogenesis in vitro. Top panel: representative light photomicrographs (4 × original magnification) show formation of primitive vascular tubule structures by human vascular endothelial cells after 11 days of culture with medium control, vascular endothelial growth factor (VEGF) (10 ng/ml) and IL‐33 (0·1, 1·0 and 10 ng/ml). Bottom panel: computer‐assisted quantification of mean total numbers of tubules, mean total tubule lengths and mean numbers of branch points. Bars show the mean ± SEM of three separate experiments performed in duplicate. *P < 0·05.