Figure 3

Gefitinib increases IFN-γ production of NK cells. (A-B), NK cells was evaluated for the IFN-γ secretion in the absence (A) or presence (B) of gefitinib. (C-D), NK cells were incubated with A549 cell lines in the absence (C) or presence (D) of gefitinib. (E-F), NK cells were incubated with H1975 cell lines in the absence (E) or presence (F) of gefitinib. Intracellular IFN-γ levels were evaluated with flow cytometry. Two independent experiments were performed.