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Related Experiment Videos

Suppression by autogenous complementary idiotypes: the priority of the first response.

D A Rowley, H Köhler, H Schreiber

    The Journal of Experimental Medicine
    |October 1, 1976
    PubMed
    Summary

    Established immune responses can suppress complementary antibody production. The sequence and timing of immunizations significantly impact immune responses, affecting antibody levels and cell activity, with complex regulatory mechanisms still requiring definition.

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    Area of Science:

    • Immunology
    • Antibody Regulation
    • Immune Response Dynamics

    Background:

    • Complementary antibodies possess structures that interact with each other.
    • Induction of complementary antibodies was studied using phosphorylcholine (PC) and TEPC-15 (T15) myeloma protein in mice.

    Purpose of the Study:

    • To investigate the suppressive effects of established immune responses on subsequent complementary antibody production.
    • To explore the complex interactions and regulatory mechanisms between complementary immune responses.

    Main Methods:

    • Inducing complementary antibodies in A/He mice via immunization with PC-containing antigens and T15.
    • Monitoring immune responses by enumerating plaque-forming cells (PFC) and assaying serum antibody levels.

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    Main Results:

    • Prior immunization with T15 suppressed PC responses, and vice versa.
    • Interim T15 immunization between PC immunizations led to undiminished PFC but lower PC antibody titers.
    • Simultaneous T15 immunization enhanced PC PFC response but decreased PC antibody levels.

    Conclusions:

    • Established autogenous immune responses can suppress subsequent complementary responses.
    • The sequence and timing of immunizations critically influence immune response outcomes.
    • Further research is needed to define the role of antibody class and ratios in regulating complementary responses.