NOS3 and ischemia: MiR-132-3p-enriched MSC-Exos protected endothelial cells from ischemia-induced apoptosis, oxidative stress, and tight junction disruption through the repression of protein p120 Ras GTPase-activating protein (RASA1) expression and activation of the Ras/PI3K/Akt/endothelial nitric oxide synthase (eNOS) signaling pathway [106].