Modulation of histamine release from human colon mast cells by protease inhibitors

Figure 3 Inhibition of calcium ionophore (1 µg/mL) induced histamine release from dispersed colon mast cells by the protease inhibitors. The inhibitors and anti-IgE were added to cells at the same time (no preincubation). Data are presented as mean ± SEM for four to six separate experiments performed in duplicate. ^aP < 0.05 compared with the responses with uninhibited controls. AT = α₁-antitrypsin; LF = lactoferrin.