Fig. 2.
Fig. 2. Cold target inhibition assay of the killing of K562 cells by K562 and ML-2 cells. / NK cells and DiO-labeled K562 cells (ratio 20:1) were coincubated with nonlabeled K562 or ML-2 cells in various concentrations. After an incubation time of 4 hours, the dead cells were stained with PI and analyzed by flow cytometry.

Cold target inhibition assay of the killing of K562 cells by K562 and ML-2 cells.

NK cells and DiO-labeled K562 cells (ratio 20:1) were coincubated with nonlabeled K562 or ML-2 cells in various concentrations. After an incubation time of 4 hours, the dead cells were stained with PI and analyzed by flow cytometry.

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