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. 2021 Aug 14;11(8):144. doi: 10.1038/s41408-021-00536-x

Fig. 3. IL-10 CAR-T cells exhibited antigen-specific cytotoxicity against primary AML cells.

Fig. 3

a Quantification and statistical analysis of the expression of IL-10RA and IL-10RB on blast cells from AML patients or bone marrow mononuclear cells (BMMNCs) from healthy donors (HD). b Quantification and statistical analysis of CD107a in VEC-T or IL-10 CAR-T cells (GFP+) after co-incubated with blast cells at an E:T ratio of 1:1 for 6 h (n = 3; **p < 0.01; ***p < 0.001; P, patient). c Direct lysis of T cells toward blast cells after cocultured for 48 h at the indicated E:T ratio (1:4, 1:2, 1:1, 2:1, 4:1). Flow cytometry analysis of the percentage of CD34+ cells, which represented for the residue of blast cell (n = 5, two-way ANOVA; ****p < 0.0001) d Correlation analysis between the specific lysis and the level of IL-10RA expression (Spearman correlation analysis, n = 12; **p < 0.01). e Correlation analysis between the specific lysis and the level of IL-10RB expression (Spearman correlation analysis, n = 12). f ELISA data showed the cytokines released by T cells after co-incubated with blasts cells for 48 h at the E:T ratio of 1:1 (n = 5; **p < 0.01; ***p < 0.001).