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Fig. 5.

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Fig. 5. Killing behaviors of NK cells cultured in different media. (A) Representative time-lapse images of NK cell killing events after cell contact. K562 cells are indicated with green fluorescence and NK cells with yellow arrows. (B) Time for target cell killing (N=11) and (C) killing capacity of NK cells as determined from time-lapse images (N=12). (D) Killing capacity of NK cells cultured in AI or AI + 10% human serum (N=4) at 30, 90, 150, and 240 minutes. *P<0.05; **P<0.01; ***P<0.001.
Abbreviations: DS, DMEM+Ham’s F12+various supplements; AI, AIM V+ICSR; NK, natural killer; UCB, umbilical cord blood; ICSR, Immune Cell Serum Replacement; HM serum, human serum.
Ann Lab Med 2022;42:638~649

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