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Related Experiment Videos

A glucose-dependent panhemagglutinin

T Lewis, M Reid, S Ellisor

    Vox Sanguinis
    |October 1, 1980
    PubMed
    Summary
    This summary is machine-generated.

    A novel agglutinin was found that reacts with glucose-coated red blood cells, not typical antibodies. This discovery may mislead blood transfusion services by mimicking high-frequency antigen antibodies.

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    Area of Science:

    • Immunology
    • Transfusion Medicine
    • Biochemistry

    Background:

    • Identification of unusual agglutinins in patient serum is crucial for transfusion safety.
    • Understanding non-antibody-mediated red blood cell agglutination is essential for accurate laboratory diagnostics.

    Observation:

    • An agglutinin in a patient's serum reacted with all commercial red blood cells after incubation with glucose.
    • Red blood cells incubated with glucose showed increased agglutinability, which diminished upon washing and incubation in saline.
    • The agglutinin's reactivity was inhibited by glucose but not other sugars, and it was sensitive to 2-mercaptoethanol but heat-stable at 56°C.

    Findings:

    • A glucose-specific agglutinin, distinct from typical antibodies, was characterized.
    • The agglutinin's properties suggest a non-immunoglobulin nature, possibly protein-based, interacting with glucose-modified red blood cells.

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  • The agglutinin demonstrated significant titer in both LISS and saline media.

    • Implications:

    • This finding highlights a potential diagnostic challenge in blood transfusion laboratories, mimicking antibodies against high-incidence antigens.
    • Awareness of such glucose-dependent agglutinins is necessary to prevent misdiagnosis and ensure patient safety.
    • Further research into the exact nature and mechanism of this agglutinin is warranted.