IFNG and B-cell non-Hodgkin lymphoma: We first quantified both degranulation (measured by expression of extracellular CD107a on NK cells) and intracellular IFN‐γ production by IL‐12/15/18‐preactivated NK cells from C57BL/6 mice (B6, H‐2b) upon stimulation with PMA and ionomycin, or in response to T‐cell lymphoma YAC‐1 cells or B‐cell lymphoma A20 cells (Fig. 1A).