Fig. 6. Effect of PCAIWF on endothelial tube formation.

(A) Tube formation by HUVECs in Matrigel induced by VEGF or VEGF-C in the presence or absence of peptide PCAIWF or scramble (500 μg/ml, embedded in the Matrigel layer). (B) Number of tubes formed between endothelial cells. Bars represent means ± SEM from triplicate wells. Statistics, Student’s t test (*P ≤ 0.05). Two independent experiments were performed with similar results.