Figure 5.
B. pertussis-stimulated mo-MΦ activate human NK cells. Mo-MΦ and NK cell single cultures and mo-MΦ/NK co-cultures were stimulated with B. pertussis (B4393, MOI = 10, dashed bars) or left untreated (clear bars) for 22 h. Secreted levels of (A) IFNγ and (B) Granzyme B were measured in the supernatant (n = 7). NK cells were stained for (C,D) IL-2Rα (n = 4) and (E,F) HLA-DR (n = 6) and the expression of these markers was analyzed on CD56+CD3− NK cells. (A–C,E) Results are expressed as medians with interquartile range. Black dots represent values of individual donors. (D,F) Results are expressed as dot plots of one representative donor. *p < 0.05.