Histochemical analyses of glycoconjugates and antimicrobial substances in goat labial glands

作者：Habata Isao; Yasui Tadashi; Fujimori Osamu; Meyer Wilfried; Tsukise Azuma^*

来源：Acta Histochemica, 2012, 114(5): 454-462.

DOI：10.1016/j.acthis.2011.08.006

• Labial glands
• Glycoconjugates
• Antimicrobial substances
• Histochemistry
• Goat

Saliva is known to protect the oral cavity and contains glycoproteins and antimicrobial substances. The distribution of these salivary secretions was studied in the labial glands of the Japanese miniature (Shiba) goat using lectin histochemical and immunohistochemical methods. The mucous acinar cells of the labial glands exhibited glycoconjugates with different saccharide residues, such as GalNAc alpha 1-3GalNAc, Gal beta 1-4GalNAc, beta-D-GlcNAc and sialic acid linked to alpha 2-6Gal/GalNAc. Furthermore, alpha-D-Man, alpha-L-Fuc, alpha-D-GalNAc, beta-D-Gal and sialic acid residues were present, in particular, in the serous demilunar cells. Antimicrobial substances (lysozyme, IgA, lactoferrin and beta-defensin) were shown to be mainly immunolocalized in the serous demilunes and duct cells. The results obtained are discussed with regard to the functional role of labial glands. The secretory compounds demonstrated may play an important role in the maintenance of oral health with regard to saliva.

• 出版日期2012