Morphologic, histochemical, and immunohistochemical characterization of tracheobronchial respiratory glands in South American Sea Lion Otaria flavescens (Pinnipedia, Mammalia)

Tracheobronchial airways from Otaria flavescens routinely were processed for histological, histochemical, and immunohistochemical methods to study individual mucus-producing cells (IMPC and submucosal glands. The IMPCs were interspersed in the epithelium of the trachea. They showed neutral and weakl...

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Autores principales:	Lauria de Cidre, Lilia, Crespo, Fabián Alberto
Publicado:	2006
Materias:	Airways Glandular secretion Glycoconjugates Submucosal glands cytokeratin 19 cytokeratin 7 glycoconjugate acidity animal cell animal tissue article carboxylation columnar epithelium cytoplasm histochemistry histology immunohistochemistry mammal morphology myoepithelium cell nonhuman seal secretory cell sialylation South America submucosa trachea mucosa tracheobronchial tree Animalia Mammalia Otaria byronia Pinnipedia
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01478885_v29_n1_p29_LauriaDeCidre http://hdl.handle.net/20.500.12110/paper_01478885_v29_n1_p29_LauriaDeCidre
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_01478885_v29_n1_p29_LauriaDeCidre
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spelling	paper:paper_01478885_v29_n1_p29_LauriaDeCidre2023-06-08T15:13:01Z Morphologic, histochemical, and immunohistochemical characterization of tracheobronchial respiratory glands in South American Sea Lion Otaria flavescens (Pinnipedia, Mammalia) Lauria de Cidre, Lilia Crespo, Fabián Alberto Airways Glandular secretion Glycoconjugates Submucosal glands cytokeratin 19 cytokeratin 7 glycoconjugate acidity animal cell animal tissue article carboxylation columnar epithelium cytoplasm histochemistry histology immunohistochemistry mammal morphology myoepithelium cell nonhuman seal secretory cell sialylation South America submucosa trachea mucosa tracheobronchial tree Animalia Mammalia Otaria byronia Pinnipedia Tracheobronchial airways from Otaria flavescens routinely were processed for histological, histochemical, and immunohistochemical methods to study individual mucus-producing cells (IMPC and submucosal glands. The IMPCs were interspersed in the epithelium of the trachea. They showed neutral and weakly acidic and carboxylated glycoconjugates. Only IMPCs in the trachea secrete sialylated glycoconjugates. Submucosal glands were formed by 1) collecting duct lined by a ciliated pseudostratified to simple columnar epithelium without cilias. They showed neutral and carboxylic glycoconjugates. 2) Glandular sinus, a branched secretory unit in which the lining epithelium showed two possible secretory mechanisms: merocrine type of neutral glycoconjugates and apocrine type of sialylated and sulphated or carboxylated glycoconjugates, with positive reaction for proteins. 3) Glandular branched tubules emerging from glandular sinuses were lined by columnar cells with an apical cytoplasm containing neutral and carboxylated glycoconjugates. Myoepithelial cells surrounded both glandular sinuses and tubules. Cytokeratin 7 was specific for glandular sinus and for a few ciliated cells of the trachea, whereas cytokeratin 19 was observed in glandular sinuses, glandular tubules, and in some tracheal cells. These results showed that the secretory cells of glandular sinuses and tubular glands are well differentiated and that a possible common origin may be inferred. Fil:Lauria De Cidre, L.S. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Crespo, F.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2006 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01478885_v29_n1_p29_LauriaDeCidre http://hdl.handle.net/20.500.12110/paper_01478885_v29_n1_p29_LauriaDeCidre
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Airways Glandular secretion Glycoconjugates Submucosal glands cytokeratin 19 cytokeratin 7 glycoconjugate acidity animal cell animal tissue article carboxylation columnar epithelium cytoplasm histochemistry histology immunohistochemistry mammal morphology myoepithelium cell nonhuman seal secretory cell sialylation South America submucosa trachea mucosa tracheobronchial tree Animalia Mammalia Otaria byronia Pinnipedia
spellingShingle	Airways Glandular secretion Glycoconjugates Submucosal glands cytokeratin 19 cytokeratin 7 glycoconjugate acidity animal cell animal tissue article carboxylation columnar epithelium cytoplasm histochemistry histology immunohistochemistry mammal morphology myoepithelium cell nonhuman seal secretory cell sialylation South America submucosa trachea mucosa tracheobronchial tree Animalia Mammalia Otaria byronia Pinnipedia Lauria de Cidre, Lilia Crespo, Fabián Alberto Morphologic, histochemical, and immunohistochemical characterization of tracheobronchial respiratory glands in South American Sea Lion Otaria flavescens (Pinnipedia, Mammalia)
topic_facet	Airways Glandular secretion Glycoconjugates Submucosal glands cytokeratin 19 cytokeratin 7 glycoconjugate acidity animal cell animal tissue article carboxylation columnar epithelium cytoplasm histochemistry histology immunohistochemistry mammal morphology myoepithelium cell nonhuman seal secretory cell sialylation South America submucosa trachea mucosa tracheobronchial tree Animalia Mammalia Otaria byronia Pinnipedia
description	Tracheobronchial airways from Otaria flavescens routinely were processed for histological, histochemical, and immunohistochemical methods to study individual mucus-producing cells (IMPC and submucosal glands. The IMPCs were interspersed in the epithelium of the trachea. They showed neutral and weakly acidic and carboxylated glycoconjugates. Only IMPCs in the trachea secrete sialylated glycoconjugates. Submucosal glands were formed by 1) collecting duct lined by a ciliated pseudostratified to simple columnar epithelium without cilias. They showed neutral and carboxylic glycoconjugates. 2) Glandular sinus, a branched secretory unit in which the lining epithelium showed two possible secretory mechanisms: merocrine type of neutral glycoconjugates and apocrine type of sialylated and sulphated or carboxylated glycoconjugates, with positive reaction for proteins. 3) Glandular branched tubules emerging from glandular sinuses were lined by columnar cells with an apical cytoplasm containing neutral and carboxylated glycoconjugates. Myoepithelial cells surrounded both glandular sinuses and tubules. Cytokeratin 7 was specific for glandular sinus and for a few ciliated cells of the trachea, whereas cytokeratin 19 was observed in glandular sinuses, glandular tubules, and in some tracheal cells. These results showed that the secretory cells of glandular sinuses and tubular glands are well differentiated and that a possible common origin may be inferred.
author	Lauria de Cidre, Lilia Crespo, Fabián Alberto
author_facet	Lauria de Cidre, Lilia Crespo, Fabián Alberto
author_sort	Lauria de Cidre, Lilia
title	Morphologic, histochemical, and immunohistochemical characterization of tracheobronchial respiratory glands in South American Sea Lion Otaria flavescens (Pinnipedia, Mammalia)
title_short	Morphologic, histochemical, and immunohistochemical characterization of tracheobronchial respiratory glands in South American Sea Lion Otaria flavescens (Pinnipedia, Mammalia)
title_full	Morphologic, histochemical, and immunohistochemical characterization of tracheobronchial respiratory glands in South American Sea Lion Otaria flavescens (Pinnipedia, Mammalia)
title_fullStr	Morphologic, histochemical, and immunohistochemical characterization of tracheobronchial respiratory glands in South American Sea Lion Otaria flavescens (Pinnipedia, Mammalia)
title_full_unstemmed	Morphologic, histochemical, and immunohistochemical characterization of tracheobronchial respiratory glands in South American Sea Lion Otaria flavescens (Pinnipedia, Mammalia)
title_sort	morphologic, histochemical, and immunohistochemical characterization of tracheobronchial respiratory glands in south american sea lion otaria flavescens (pinnipedia, mammalia)
publishDate	2006
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01478885_v29_n1_p29_LauriaDeCidre http://hdl.handle.net/20.500.12110/paper_01478885_v29_n1_p29_LauriaDeCidre
work_keys_str_mv	AT lauriadecidrelilia morphologichistochemicalandimmunohistochemicalcharacterizationoftracheobronchialrespiratoryglandsinsouthamericansealionotariaflavescenspinnipediamammalia AT crespofabianalberto morphologichistochemicalandimmunohistochemicalcharacterizationoftracheobronchialrespiratoryglandsinsouthamericansealionotariaflavescenspinnipediamammalia
_version_	1768543698416566272

Morphologic, histochemical, and immunohistochemical characterization of tracheobronchial respiratory glands in South American Sea Lion Otaria flavescens (Pinnipedia, Mammalia)

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