Biopolymer Scaffold (IMAGE) Fred Hutchinson Cancer Center Caption This is a diagram of a scaffold loaded with CAR T cells and "microspheres" containing nutrients to help the cells multiply and then leave the scaffold to go attack cancer cells. Credit Image by Cognition Studio, courtesy of Fred Hutchinson Cancer Research Center. Usage Restrictions with credit 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.