Shema (IMAGE) Osaka University Caption Vascular Endothelial stem cell (VESC) system in the liver. Vascular injury induces activation of VESCs. VESCs proliferate and replace the damaged ECs. New blood vessels are derived from VESCs. Credit ©2018 Wakabayashi et al., Cell Stem Cell 22, 1-14 Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.