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Induction of Salivary Antibody Responses in Rats after Immunization in Peyer's Patches
Author(s) -
DAHLGREN U. I. H
Publication year - 1987
Publication title -
scandinavian journal of immunology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.934
H-Index - 88
eISSN - 1365-3083
pISSN - 0300-9475
DOI - 10.1111/j.1365-3083.1987.tb02251.x
Subject(s) - saliva , antibody , immunology , immunization , immunoglobulin a , immunoglobulin g , biology , medicine
We examined salivary, milk, and serum anlibody levels after immunization in the Peyer's patches (Pp) of rats with horse spleen ferritin. Priming ofthe Pp one day after parturition led to the appearance of IgG, bit not IgA or IgM, anti firritin antibodies in saliva 9 days later. IgG and IgM antibodies were detected both in milk and in serum, whereas IgA antihodies could only be demonstrated in milk. During a second lactation period the salivary antibodies had vanished but IgG antibodies could still be detected in milk and serum. During a third location period, when the rats were immunized in the Pp a second time, not only IgG but also IgA antiferritin antibodies appeared in the saliva. Salivary IgG antibody levels and milk IgG, IgM, and IgA antibody levels were higher than those observed after primary immunization in the Pp. The IgG antibody activity in the saliva was positively correlated to the serum IgG antibody activity. It is concluded that salivary IgA antibody responses can be induced by immunization in the Pp. The results of this study suggests that IgA antibodies delected in saliva are produced locally by cells that have migrated from the intestinal lymphoil tissue to the salivary glands.