J Rhinol.  1997 Nov;4(2):145-149.

Expression of the Secretory IgA in the Olfactory Mucosa of Developing Mice

Affiliations
  • 1Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul, Korea.

Abstract

Although secretory immunoglobulin A (sIgA) is a very important substance in the defence mechanism of respiratory and nasal mucosa, research on its expression in the olfactory mucosa and differences according to development is limited. Therefore, we planned to uncover the sites of sIgA expression in the olfactory mucosa as well as changes in its expression depending on the developmental progress of mice. Our results showed the expression of sIgA in the mucus layer, the Bowman's gland, some of the blood cells and secretory ducts of the olfactory mucosa, and these findings were relatively consistent from gestational day 15 through to the adult stage. The different findings between the gestational day 15 specimens and others include a positive reaction in the Bowman's gland for gestational day 15 specimens. Therefore, we would like to predict with caution that the Immunologic regulation of mice should be completed at least after the 15th gestational day.

Keyword

Secretory IgA; Olfactory mucosa; Development; Mouse
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