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Cell transfer studies with the DK/or inbred chicken lines.

F Seto

    Advances in Experimental Medicine and Biology
    |January 1, 1977
    PubMed
    Summary

    Two White Leghorn chicken lines show sufficient histocompatibility for cell transfer experiments. Immunization enhances bone marrow cells' immune response potential and responsiveness in embryonic hosts.

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    Area of Science:

    • Immunology
    • Transplantation Biology
    • Avian Genetics

    Background:

    • Histoincompatibility between chicken lines can affect cell transfer experiments.
    • Understanding immune cell precursors in bone marrow is crucial for immune enhancement strategies.

    Purpose of the Study:

    • To assess histocompatibility between DK-OR-1 (B13B13) and DK/OR-3 (B19B19) inbred White Leghorn chicken lines.
    • To investigate the presence and responsiveness of antigen-responsive cells (ARC) and precursor cells in chicken bone marrow.
    • To evaluate the effect of immunization on bone marrow cell immune function.

    Main Methods:

    • Simonsen's spleen assay, graft-versus-host reaction (GVHR) mortality counts, and antibody production assays were used to assess histocompatibility.
    • In vivo culture and baby chick immune enhancement assays were employed to study bone marrow cells.
    • Experiments involved cell transfers into embryonic hosts and subsequent antigen stimulation.

    Main Results:

    • DK-OR-1 and DK/OR-3 chicken lines demonstrated sufficient histocompatibility for cell transfer studies.
    • Unimmunized donor bone marrow showed minimal anti-MRBC immune responsiveness.
    • MRBC-primed donor bone marrow exhibited low anti-MRBC activity, which increased with secondary stimulation.
    • Embryonic bone marrow grafts from immunized donors led to enhanced immune responses in recipients upon MRBC challenge.

    Conclusions:

    • Immunization increases the pool of potential antigen-responsive cells (ARC) in donor bone marrow.
    • Prior immunization augments the responsiveness of bone marrow cells transferred into embryonic hosts, enhancing immune capabilities.

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