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Related Experiment Videos

Parameters affecting in vitro immunization of human lymphocytes.

J Lagacé, B R Brodeur

    Journal of Immunological Methods
    |December 17, 1985
    PubMed
    Summary

    This study details an effective method for generating antibody-secreting cells in vitro from human tonsil lymphocytes. Optimal conditions were identified for specific antibody production, enhancing immune research capabilities.

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    Area of Science:

    • Immunology
    • Cell Biology

    Background:

    • In vitro generation of antibody-secreting cells is crucial for immunological studies.
    • Optimizing conditions for specific antibody production requires detailed investigation.

    Purpose of the Study:

    • To describe a method for in vitro generation of antibody-secreting cells from human tonsil lymphocytes.
    • To identify optimal parameters for in vitro immunization and specific antibody production.

    Main Methods:

    • Human tonsil lymphocytes were cultured and stimulated under various conditions.
    • Parameters investigated included cell source, serum type, T-cell growth factors, antigen concentration, cell density, and suppressor T-cell removal.
    • Lymphocyte proliferation was assessed, and specific antibody production was measured.

    Main Results:

    • Tonsil lymphocytes proliferated 2.5-fold in 6 days with T-cell growth factors.
    • Optimal antibody production against Haemophilus influenzae type b was achieved using tonsil lymphocytes, fetal calf serum, T-cell growth factors, low antigen concentration (1-10 ng/ml), specific cell density (4 x 10^6 cells/culture), and OKT8+ suppressor T-cell removal.
    • Specific antibody response was observed in 10 out of 11 individuals after 7 days of culture.

    Conclusions:

    • A robust method for in vitro antibody-secreting cell generation from human tonsil lymphocytes has been established.
    • The identified parameters significantly enhance specific antibody production, offering a valuable tool for immunological research and vaccine development.

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