Glioblastoma (IMAGE) University of California - San Diego Caption Non-tumorigenic glioblastoma cells (left) can spontaneously acquire cancer stem cell characteristics (right). Credit UC San Diego School of Medicine Usage Restrictions Must use photo credit as indicated 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.