Fig. 3.

Intracellular cytokine analysis of CD14⁺HLA-DR^−/low in the presence or absence of NK cells. (A) NK cells were stimulated with IL-2 and cultured either alone, with CD14⁺HLA-DR^−/low, or with CD14⁺HLA-DR⁺ cells. IFN-γ was analyzed after 48 hours by intracellular FACS as shown in representative dot plots. (B) Cumulative results of three independent experiments are shown (*P < 0.05; **P < 0.001). Cytokine secretion was analyzed gating on CD14⁺ cells (black bars) and CD56⁺ cells (white bars).