S19-505 Engineered Cytotoxic T Cells and CD200 Blockade to Enhance Anti-Tumor Activity Engineered cytotoxic T cells are a promising class of cell therapies. These living drugs are capable of selectively killing blood cancers, such as acute myeloid leukemia (AML), and delaying its progression. Maria-Grazia Roncarolo Alma-Martina Cepika Molly Kathryn Uyeda Brandon Cieniewicz