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Related Experiment Videos

Antibody affinity and acute immune complex disease.

W R Griswold, M Brams

    Journal of Clinical & Laboratory Immunology
    |August 1, 1984
    PubMed
    Summary

    In acute immune complex disease, antibody affinity increases over time. Low-affinity antibody-antigen complexes may contribute to immune complex injury.

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    Area of Science:

    • Immunology
    • Nephrology

    Background:

    • Immune complex diseases involve antibody-antigen complexes.
    • The role of antibody affinity in disease pathogenesis is crucial.

    Purpose of the Study:

    • To investigate the dynamics of anti-BSA antibody affinity in rabbits with acute immune complex disease.
    • To determine if antibody affinity correlates with disease progression and antigen elimination.

    Main Methods:

    • Daily measurement of anti-BSA antibody affinity in rabbits.
    • Correlation analysis of affinity values over time.
    • Comparison of antibody affinity before and after antigen elimination.
    • Assessment of antibody affinity in relation to serum creatinine levels.

    Main Results:

    • Antibody affinity significantly increased over time (r = 0.87, p < 0.01).
    • Affinity was lower before antigen elimination (5.3 x 10^5 M^-1) compared to after (9.6 x 10^5 M^-1, p < 0.01).
    • Elevated serum creatinine correlated with lower antibody affinity (7.6 x 10^5 M^-1).

    Conclusions:

    • Antibody affinity maturation occurs during acute immune complex disease.
    • Low-affinity antibody-antigen complexes are implicated in acute immune complex injury.
    • Antibody affinity may serve as a marker for disease activity and renal involvement.

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