Figure 6

Effect of antagonists for AT1R and AT2R on immunopositivity for endothelial cell markers. Mesenchymal stem cells (MSCs) were pretreated with either angiotensin receptor AT1R or AT2R inhibitor and then cultured with angiotensin II (Ang II) and vascular endothelial growth factor (VEGF-A). PD123319, an AT2R inhibitor, significantly reduced the expression of platelet endothelial cell adhesion molecule-1 (PECAM-1), von Willebrand factor (vWF) and vascular endothelial cadherin (VE-cadherin) (B), whereas there was a lesser effect of the AT1R inhibitor telmisartan (A). Bar diagram showing data from six individual experiments (C). Note that human umbilical vein endothelial cells were excluded from the statistical analyses. *P <0.05 vs. VEGF-A (2 ng/ml) plus Ang II (2 ng/ml)-treated MSCs. ^# P <0.05 telmisartan vs. PD123319-treated MSCs, n = 3.