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B-lumphocyte alloantigens.

A H Johnson, F E Ward, D B Amos

    Scandinavian Journal of Immunology
    |January 1, 1977
    PubMed
    Summary
    This summary is machine-generated.

    Researchers identified novel B-cell alloantisera groups, DIg 1-7, using microcytotoxicity testing. Two groups, DIg 7 and DIg 2, were found to segregate with the HLA-B and HLA-A loci, respectively, in a recombinant family.

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    Area of Science:

    • Immunogenetics
    • Cell Biology
    • Human Leukocyte Antigen (HLA) research

    Background:

    • Microcytotoxicity assays are standard for B-cell alloantiserum typing.
    • Understanding B-cell alloantigen specificities is crucial for transplantation and disease association studies.
    • The Human Leukocyte Antigen (HLA) system plays a vital role in immune response and transplantation compatibility.

    Purpose of the Study:

    • To characterize novel B-cell alloantisera using microcytotoxicity.
    • To investigate the segregation of identified B-cell alloantigen groups within an HLA-A/B recombinant family.
    • To assign specific B-cell alloantigen groups to either the HLA-A or HLA-B locus.

    Main Methods:

    • Seventy B-cell alloantisera were tested against B-cell and T-cell enriched lymphocytes using microcytotoxicity.

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  • Six distinct B-cell alloantiserum groups, tentatively named DIg 1-7, were identified.
  • An HLA-A/B recombinant family was typed using these alloantisera to observe segregation patterns.

    • Main Results:

    • Six B-cell alloantiserum groups (DIg 1-7) were discerned.
    • Group DIg 7 demonstrated segregation with the HLA-B locus.
    • Group DIg 2 showed segregation with the HLA-A locus.

    Conclusions:

    • The study successfully identified and tentatively grouped B-cell alloantisera.
    • Specific B-cell alloantigen groups (DIg 2 and DIg 7) were localized to the HLA-A and HLA-B loci, respectively.
    • These findings contribute to the understanding of HLA polymorphism and B-cell alloantigen distribution.