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Related Experiment Videos

[Antigen-binding clone cells in hematopoietic spleen colonies]

I V Khazanova, L V Van'ko, V V Malaĭtsev

    Biulleten' Eksperimental'Noi Biologii I Meditsiny
    |May 1, 1976
    PubMed
    Summary

    Quantitative analysis of splenic B-cell clones reveals significant variations in antibody receptor avidity and V-gene ratios. These findings challenge the germ-line hypothesis for antibody diversity.

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    Area of Science:

    • Immunology
    • Molecular Biology
    • Genetics

    Context:

    • Investigating the diversity of antibody and receptor genes in B-cells.
    • Analyzing primary hemopoietic splenic colonies to understand B-cell development.

    Purpose:

    • To quantitatively assess antigen-binding cell clones and Ig-positive cells in splenic colonies.
    • To determine the relationship between B-cell clone ratios and V-gene expression.
    • To evaluate the avidity of B-cells with specificities against DNP-erythrocytes.

    Summary:

    • B-cell clones in splenic colonies exhibited significant differences in DNP-lysine inhibition curves, indicating varying B-cell avidity.
    • The ratio of anti-DNP and anti-BE Ig-receptor expressing cells varied significantly between colonies.
    • Quantitative regularities observed were inconsistent with the germ-line hypothesis for antibody and receptor diversity.

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    Impact:

    • Challenges the prevailing germ-line hypothesis for the generation of antibody and B-cell receptor diversity.
    • Suggests alternative mechanisms for generating the vast repertoire of immune receptors.
    • Provides quantitative data to inform future models of B-cell development and immune response.