Base Editing Might Be Key to CAR T-cell Therapy.

Researchers used a unique base-editing strategy to engineer chimeric-antigen receptor (CAR) T cells that engraft in the host and remain invisible to remaining antibody drugs. Of the 11 patients with T-cell acute lymphoblastic leukemia who received these BE-CAR7 T cells, all had complete morphogenic remission after 28 days, 82% underwent stem-cell transplantation, and 64% remain in remission 3 to 36 months after treatment.