Figure 1

Experimental method of prevention and therapy in the RBL-2H3 mast cell system. (A) For a preventative condition RBL-2H3 cells were irradiated and sensitized with DNP-IgE for 4 hr and stimulated with DNP-HAS for 1 hr. (B) For a therapeutic condition RBL-2H3 cells were sensitized with DNP-IgE for 4 h and irradiated. After 30 min, cells were stimulated with DNP-HSA for 1 h.