Figure 5

The deficiency of FARS2 impairs angiogenesis by disrupting the Notch and Wnt signaling pathways. (A) The expression levels of genes involved in the Notch/Wnt pathways in control and fars2 zebrafish morphants, as determined by qRT-PCR analyses (n = 6–10 individual embryos). ^***P < 0.001, ^**P < 0.01, ^*P < 0.05; ns, not significant. (B) The relative mRNA expression levels of Notch/Wnt pathway-related genes. The human umbilical vein endothelial cells (HUVECs) were transfected with the indicated siRNAs for 48 h and then harvested for qRT-PCR analysis. The measurements were made in triplicate (mean and SEM), and the results are indicative of three independent experiments. ^*P < 0.05, ^**P < 0.01, ^***P < 0.001, ^****P < 0.0001. (C) Western blot analyses of NOTCH1 and β-catenin protein levels. The HUVECs were transfected with the indicated siRNAs for 48 h prior to analysis. (D) Quantification of the western blotting data described in (C). The measurements were made in triplicate (mean and SEM). ^*P < 0.05, ^**P < 0.01.