Abstract
The capacity for IgE anti body production in ASK mice, which are highly sensitivity to anaphylactic shock, was compared with that in C3H and AKR mice. Three strains of mice were immunized with DNP-Ascaris mixed with aluminum hydroxide gel. IgE antibody to DNP in the sera was titrated by the rat 48-hour passive cutaneous anaphylaxis test. Maximum IgE titers of each strain of mice were 1: 2560 in C3H, 1: 1280 in ASK and 1: 640 in AKR. IgE antibody was detected in the sera until 170 days in C3H, 290 days in ASK and for not less than 320 days in AKR. These results suggest that the ASK mouse is a high responder strain for IgE antibody.
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