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Related Experiment Videos

Does clonal selection occur among T cells?

N A Mitchison, S Pettersson

    Annales D'Immunologie
    |July 1, 1983
    PubMed
    Summary

    T cells (T lymphocytes) show limited proliferation upon antigen stimulation, reaching a plateau quickly. This suggests a high initial frequency of responding T cells is necessary for effective immune responses.

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    Area of Science:

    • Immunology
    • Cellular Biology

    Background:

    • T cells (T lymphocytes) exhibit limited proliferation compared to B cells following antigenic stimulation.
    • Understanding T cell response dynamics is crucial for immunology.

    Purpose of the Study:

    • To investigate the proliferation limits of T cells in response to antigenic stimulation.
    • To compare T cell activity under in vivo and in vitro conditions.

    Main Methods:

    • Adoptive immunization studies were employed.
    • Comparison of in vivo activated T cells with in vitro selected cell lines.

    Main Results:

    • T cells rapidly reach a plateau in activity, even with repeated stimulation.
    • The rapid plateau suggests a high initial frequency of antigen-specific T cells.

    Conclusions:

    • T cell proliferation is significantly restricted compared to B cells.
    • The findings highlight the importance of initial T cell frequency in immune responses.

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