Fig. 1

Comparison of the cytomorphology and components of UC-NKs and P-NKs. A Phase contrast images of UC-NKs and P-NKs at the indicated time points (day 0, 7, 10, 14) during the 14-days’ ex vivo induction. Scale bar = 50 μm. B, C FCM diagrams B and statistical analyses C of total (CD3⁻CD56⁺) and activated (CD3⁻CD56⁺CD16⁺) UC-NKs and P-NKs. D, E Statistical analyses of the numbers of total (CD3⁻CD56⁺) UC-NKs and P-NKs D and the activated (CD3⁻CD56⁺CD16⁺) UC-NKs and P-NKs E. F, G FCM diagrams F and statistical analyses G of total CD3⁺CD56⁻ T lymphocytes, CD4⁺ T cells, CD8⁺ T cells and CD3⁺CD56⁺ NKT cells in UC-NKs and P-NKs. All data were shown as mean ± SEM (N = 3 independent experiments). *, P < 0.05; **, P < 0.01; ***, P < 0.001; NS, not significant