FIG. 4.

Effect of IL-12p40-blocking antibody on H. pylori-induced IFN-γ secretion. Resting and activated PBMCs were cultured in vitro for 24 h in the presence or absence of different H. pylori products and anti-IL-12p40 or isotype-matched control antibody (Ab). Mean values ± standard errors of three experiments (same three donors as Fig. 1) performed in duplicates are shown.