open access

Vol 43, No 3 (2005)
Original paper
Submitted: 2011-12-19
Published online: 2011-08-22
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Glycoconjugate histochemistry and nNOS immunolocalization in the mantle and foot epithelia of Tapes philippinarum (bivalve mollusc)

Concetta Calabro, Maria Pia Albanese, Silvestro Martella, Patrizia Licata, Eugenia Rita Lauriano, Clara Bertuccio, Aurelio Licata
Folia Histochem Cytobiol 2005;43(3):151-156.

open access

Vol 43, No 3 (2005)
ORIGINAL PAPERS
Submitted: 2011-12-19
Published online: 2011-08-22

Abstract

Glycosaminoglycans and NO synthase probably regulate mucous cell secretion in the skin of Tapes philippinarum. We have demonstrated the presence of "protein" cells, "glycogen" cells, "phenol" cells and five types of mucous cells, with different chemical composition of the mucus in the mantle epithelium of T. philippinarum. The foot epithelium contained "protein" cells and two types of mucous cells. Using biotinylated lectins, in the mantle and foot epithelia we have shown specific sites for the following oligosaccharides: α-D-glucose, α-D-mannose, α-L-fucose, α-D-1,3-N-acetyl-galactosamine and α-N-acetyl-glucosamine. nNOS immunoreactivity in the intraepithelial and intradermal cells and in the mucocytes suggested a regulatory role of NO in mucus secretion, as demonstrated also in other invertebrates.

Abstract

Glycosaminoglycans and NO synthase probably regulate mucous cell secretion in the skin of Tapes philippinarum. We have demonstrated the presence of "protein" cells, "glycogen" cells, "phenol" cells and five types of mucous cells, with different chemical composition of the mucus in the mantle epithelium of T. philippinarum. The foot epithelium contained "protein" cells and two types of mucous cells. Using biotinylated lectins, in the mantle and foot epithelia we have shown specific sites for the following oligosaccharides: α-D-glucose, α-D-mannose, α-L-fucose, α-D-1,3-N-acetyl-galactosamine and α-N-acetyl-glucosamine. nNOS immunoreactivity in the intraepithelial and intradermal cells and in the mucocytes suggested a regulatory role of NO in mucus secretion, as demonstrated also in other invertebrates.
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Keywords

Glycoconjugates; nNOS; Mantle; Foot; TTapes philippinarum

About this article
Title

Glycoconjugate histochemistry and nNOS immunolocalization in the mantle and foot epithelia of Tapes philippinarum (bivalve mollusc)

Journal

Folia Histochemica et Cytobiologica

Issue

Vol 43, No 3 (2005)

Article type

Original paper

Pages

151-156

Published online

2011-08-22

Bibliographic record

Folia Histochem Cytobiol 2005;43(3):151-156.

Keywords

Glycoconjugates
nNOS
Mantle
Foot
TTapes philippinarum

Authors

Concetta Calabro
Maria Pia Albanese
Silvestro Martella
Patrizia Licata
Eugenia Rita Lauriano
Clara Bertuccio
Aurelio Licata

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