stem cells (IMAGE) UT Southwestern Medical Center Caption Drs. Jun Wu, Leqian Yu, Yulei Wei and colleagues isolated a new type of pluripotent stem cell from mice, horses, and humans, named XPSCs, which are capable of generating chimeras and germ cell precursors. Credit Photo illustration by Leqian Yu 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.