“…BEC-EVs were found to express EC markers VE-cadherin, PECAM-1, vWF, and ENG [ 52 , 53 , 54 , 55 , 56 , 57 , 58 , 59 , 60 , 61 ]. In addition, angiogenesis-implicated growth factor receptors VEGFR-1 and VEGFR-2 and their ligand VEGF-A were detected, with the latter’s expression being increased under hypoxic conditions [ 52 , 62 , 63 ].…”