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  • Title: Regulation of antibody response in different immunoglobulin classes. I. Selective suppression of anti-DNP IgE antibody response by preadministration of DNP-coupled mycobacterium.
    Author: Kishimoto T, Hirai Y, Suemura M, Yamamura Y.
    Journal: J Immunol; 1976 Aug; 117(2):396-404. PubMed ID: 820800.
    Abstract:
    Selective suppression of IgE antibody response was demonstrated. Preadministration of DNP-coupled mycobacterium (DNP-Tbc) inhibited the formation of anti-DNP IgE antibody induced by DNP-OA without any suppressive effect on anti-DNP IgG antibody response. Secondary anti-DNP IgE antibody response by DNP-OA was also significantly depressed by the preadministration of DNP-Tbc. Anti-OA IgE antibody response induced by DNP-OA was also depressed by DNP-Tbc, whereas anti-OA IgE antibody response induced by PAB-OA was not affected by the preadministration of DNP-Tbc. Preimmunization with DNP-MGG induced much higher anti-DNP IgG antibody response than DNP-Tbc, but DNP-MGG did not suppress the induction of anti-DNP IgE antibody. The transfer of DNP-Tbc-primed spleen cells into normal mice depressed anti-DNP IgE antibody response. B cell-depleted cell populations also showed a comparable inhibitory effect to that of unfractionated DNP-Tbc primed cells. In the adoptive cell transfer experiment, DNP-Tbc-primed cells depressed anti-DNP IgE antibody response of DNP-OA-primed cells when these cells were stimulated with DNP-OA. These results suggested that DNP-specific T cells induced with DNP-Tbc selectively inhibited IgE antibody response.
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