Figure 4

Expression of FcϵRI, FcαRI, and HLA-DR in human intestinal mast cells cultured with or without IFN-γ. MCs were cultured for 3 weeks in the presence of SCF (50 ng/ml) with or without addition of IFN-γ (100 ng/ml) to the culture medium for the last 3 days. Surface expression of (A) FcϵRI, (B) FcαRI, and (C) HLA-DR was analyzed by FACS. One experiment out of three is shown.