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Related Experiment Videos

Alpha-globulin-like antigens in bacteria

A Luczkiewicz-Mulczykowa, D Schlesinger, H Wlodara

    Archivum Immunologiae Et Therapiae Experimentalis
    |January 1, 1977
    PubMed
    Summary
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    Bacterial antigens similar to human immunoglobulin factors were found in Bacillus, Staph. epidermidis, and Enterobacteriaceae. This suggests bacterial infections may cause anti-Gm and anti-Inv antibodies in humans.

    Area of Science:

    • Immunology
    • Microbiology
    • Bacteriology

    Background:

    • Human immunoglobulin (Gm and Inv) factors are genetically determined polymorphic traits of gamma-globulins.
    • The presence of anti-Gm and anti-Inv antibodies in human serum is often associated with autoimmune conditions or previous exposure to foreign gamma-globulins.

    Purpose of the Study:

    • To investigate the presence of bacterial antigens that mimic human Gm (1), Gm (2), and Inv (1) immunoglobulin factors.
    • To explore the potential role of bacterial infections in the development of anti-Gm and anti-Inv antibodies in humans.

    Main Methods:

    • Serological investigation of 72 bacterial strains from Bacillaceae, Enterobacteriaceae, and Micrococcaceae families.
    • Comparative analysis of bacterial antigenic structures with human Gm and Inv factors.

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    Main Results:

    • Antigens resembling Gm (1) and Inv (1) factors were identified in Staphylococcus epidermidis strains.
    • Antigens similar to Gm (2) and Inv (1) factors were found in Enterobacteriaceae strains.
    • Bacillus strains exhibited antigens similar to Gm (1) and Inv (1) factors.

    Conclusions:

    • Bacterial species possess antigens that structurally resemble human immunoglobulin Gm and Inv factors.
    • Bacterial infections represent a potential etiological factor in the induction of anti-Gm and anti-Inv antibodies in the human population.