Fig. 4

Effects of PL, PL-exo and PL-exo-ALN on Dex-induced angiogenesis inhibition in EPCs. A In vitro tube formation assay of EPCs treated as indicated. (scale bar: 150 μm). B The migration evaluation of EPCs treated as indicated by transwell assay (scale bar: 100 μm). C Quantification of tube formation. D Quantification of migrated cells. E–F The phosphorylation levels of PDGFRβ and FAK in EPCs treated as indicated for 24 h. All results are presented as the means ± SDs, ^*P < 0.05, ^**P < 0.01