a, Representative flow-cytometry plots of THP-1 cells (human monocytic cell line) transduced with AAV-SB-HER2.CAR virus (MOI = 3 × 105), transduced with HER2.CAR lentivirus (MOI = 5) or electroporated with plasmid DNA (4 μg total). b, Quantification of a. c, Representative flow-cytometry plots of human CD14+ macrophages transduced with AAV-SB-CD22.CAR virus (MOI = 5 × 105), transduced with CD22.CAR lentivirus (MOI = 10) or electroporated with plasmid DNA (3 μg). d, Quantification of c. Error bars, mean ± s.e.m. of three biological replicates.