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Related Experiment Videos

The hapten-carrier effect in teleost fish.

D Yocum, M Cuchens, L W Clem

    Journal of Immunology (Baltimore, Md. : 1950)
    |March 1, 1975
    PubMed
    Summary

    Sea robins exhibit the hapten-carrier effect, indicating T-B cell cooperation in their immune response. Their secondary antibody response to haptens exclusively uses high molecular weight antibodies, unlike mammals.

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    Area of Science:

    • Immunology
    • Comparative immunology
    • Teleost fish research

    Background:

    • The hapten-carrier effect demonstrates T-cell dependent B-cell activation.
    • Understanding immune responses in non-mammalian vertebrates is crucial for evolutionary immunology.
    • Teleost fish represent a diverse group of vertebrate models for immunological studies.

    Purpose of the Study:

    • To investigate the presence of the hapten-carrier effect in the sea robin (Prionotus evolans).
    • To explore the nature of the antibody response in teleost fish.
    • To compare immune mechanisms between teleost fish and mammalian systems.

    Main Methods:

    • In vivo immunization of sea robins using dinitrophenyl as a hapten.
    • Bovine gamma-globulin and bovine serum albumin were used as carrier molecules.
    • Analysis of the secondary anti-hapten antibody response, focusing on antibody characteristics.

    Main Results:

    • The sea robin demonstrated the hapten-carrier effect, suggesting T-B cell cooperativity.
    • The secondary anti-hapten immune response in sea robins exclusively involved high molecular weight antibodies.
    • This contrasts with mammalian systems where diverse antibody classes are typically involved.

    Conclusions:

    • The sea robin possesses a T-B cell cooperative immune system, evidenced by the hapten-carrier effect.
    • Teleost fish utilize exclusively high molecular weight antibodies in their secondary anti-hapten response.
    • This finding highlights a significant difference in adaptive immunity between fish and mammals.

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