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[Para-immunity after oral antigen administration].

H Raettig

    Fortschritte Der Medizin
    |May 6, 1982
    PubMed
    Summary
    This summary is machine-generated.

    Paramunity, a non-pathogen specific defense mechanism, can be induced by inactivated bacterial vaccines. This immune stimulation enhances macrophage activity and provides protection against viral and tumor challenges in mice.

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    Area of Science:

    • Immunology
    • Infectious Disease

    Background:

    • Paramunity encompasses non-pathogen specific defense mechanisms against infections.
    • These mechanisms include phagocytosis, interference, antibiosis, and immune cell activation.

    Purpose of the Study:

    • To describe examples of paramunity induction.
    • To investigate the effects of inactivated bacterial vaccines on immune responses.

    Main Methods:

    • Oral or inhalatory administration of polyvalent inactivated bacterial vaccines to mice.
    • Assessing phagocytosis rates of macrophages.
    • Challenging vaccinated mice with Rous-sarcoma and parapoliomyelitis virus.

    Main Results:

    • Vaccination significantly increased macrophage phagocytosis.

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  • Oral administration of inactivated E. coli provided partial protection against Rous-sarcoma.
  • Oral paramunization with 'Dodecoral' vaccine protected mice against parapoliomyelitis virus.

    • Conclusions:

    • Paramunity can be effectively induced using inactivated bacterial vaccines.
    • Induced paramunity enhances innate immune cell function and confers protection against various pathogens.