CD19 and acute lymphoblastic leukemia: Two publicly available datasets (GSE231310 and GSE160311) revealed the elevated CD39 levels in CD19 CAR-T cells cocultured with the CD19+ acute lymphocytic leukemia cell line Nalm6 and in anti-EGFR CAR-T cells cocultured with EGFR+ A549 cells (Figures 4F-G and Figure S7F).