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Related Experiment Videos

IgA anti-dextran B1355 responses.

M F Kagnoff

    Journal of Immunology (Baltimore, Md. : 1950)
    |March 1, 1979
    PubMed
    Summary
    This summary is machine-generated.

    This study reveals that BALB/c mice produce a significant IgA anti-dextran antibody response to dextran B1355, which is T cell and age-dependent, challenging the notion of thymus-independent responses.

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    Area of Science:

    • Immunology
    • Molecular Biology

    Background:

    • Dextran B1355 typically elicits a thymus-independent IgM antibody response.
    • This IgM response targets alpha[1,3] determinants and shares idiotypic features with specific myeloma proteins.

    Purpose of the Study:

    • To investigate the IgA anti-dextran antibody response in BALB/c mice after dextran B1355 injection.
    • To determine the epitope specificity and T cell dependence of the IgA response.

    Main Methods:

    • Injection of BALB/c mice (Ig-1a allotype) with dextran B1355.
    • Analysis of IgM and IgA anti-dextran antibody production and specificity.
    • Assessment of T cell and age dependence of the IgA response.

    Main Results:

    • BALB/c mice produced significant IgA anti-dextran antibodies targeting the alpha[1,3] epitope.

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  • The kinetics of the IgA response mirrored the IgM response.
  • The magnitude of the IgA response was found to be T cell and age dependent.

    • Conclusions:

    • The IgA anti-dextran response to dextran B1355 in BALB/c mice is not strictly thymus-independent.
    • Both T cell and age significantly influence the magnitude of this IgA antibody production.