CD19 and acute lymphoblastic leukemia: Notably, CD19‐CAR‐DNTs elicited remarkable cytotoxicity against B‐NHL cell lines (Raji and JeKo‐1), B‐cell acute lymphoblastic leukaemia (B‐ALL) cell lines (NALM‐6 and SUP‐B15), and primary B‐ALL blasts (Figure 6a, b).