Modulation of tryptase secretion from human colon mast cells by histamine

Figure 3 Effect of co-addition of histamine (hist) and anti-IgE or calcium ionophore (CI) on tryptase release from colon mast cells. The values shown are mean ± SEM for six separate experiments. Various concentrations of histamine and anti-IgE or CI were added to cells at the same time, and then incubated with cells for 15 min before termination of the reactions. ^aP < 0.05 compared with the corresponding histamine alone group (paired Student’s t test).