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Studies on the opsonic activity of human secretory IgA using an in vitro phagocytosis system

, : Studies on the opsonic activity of human secretory IgA using an in vitro phagocytosis system. Journal of Immunology 108(3): 726-730

The potential of human secretory IgA to act as an opsonin for Staphylococcus aureus was tested in an in vitro phagocytosis assay system. Secretory IgA, isolated separately from each of 9 mothers and containing agglutinating antibodies against the Staphylococcus used in test, did not have opsonic effect at 20-100 mg/100 ml. Addition of lysozyme and serum to the test mixture did not affect the results.


PMID: 4551851

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