Human Endothelial Progenitor Cells (IMAGE) University of North Carolina Health Care Caption Human endothelial progenitor cells grown in the lab (left) and forming capillary tube like structures (right). Credit Arjun Deb Lab, UNC School of Medicine. 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.