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Characterization of the glycoconjugate sugar residues in developing chick esophageal epithelium

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dc.contributor.authorGheri, G.es
dc.contributor.authorGheri Bryk, S.es
dc.contributor.authorSgambati, E.
dc.contributor.authorGulisano, M.
dc.date.accessioned2011-02-01T09:16:34Z
dc.date.available2011-02-01T09:16:34Z
dc.date.issued1993
dc.description.abstractThe development of the esophagus in the chick embryo is characterized by remarkable morphological changes especially at the level of the epithelium. Using horseradish peroxidase-conjugated lectins (DBA, PNA, SBA, WGA, ConA, LTA, UEAI) we have studied, at the level of the esophagus of chick embryos from the 8th to the 21st day of incubation and of 1- and 2-day-old chicken, the evolution of the saccharidic moieties of glycoconjugates, which precedes andlor is concomitant with the epithelial morphological transformations. We have found differences in content and cellular distribution of oligosaccharides during the histogenetic processes which characterize the lining and glandular epithelium. Before the appearance of cilia and mucus secretion at the bathyprismatic epithelial cells, the sugar residues D-galactose-(B 133)-N-acetyl-Dgalactosamine, B-N-acetyl-D-galactosamine and a-Lfucose were detected only at the luminal cell surface. These oligosaccharides were probably involved in giving rise to the polarization of the esophageal epithelial cells. The esophageal gland mucus was first characterized by the presence of a-L-fucose and afterwards also by the presence of D-galactose-(Bl33)-N-acetyl-Dgalactosamine, D-glucosamine and sialic acid.es
dc.formatapplication/pdfes
dc.format.extent8es
dc.identifier.issn0213-3911es
dc.identifier.urihttp://hdl.handle.net/10201/18407
dc.languageenges
dc.publisherMurcia : F. Hernándezes
dc.relation.ispartofHistology and histopathologyes
dc.rightsinfo:eu-repo/semantics/openAccesses
dc.subjectSugar residueses
dc.subjectEsophaguses
dc.subject.otherCDU::6 - Ciencias aplicadas::61 - Medicina::611 - Anatomíaes
dc.titleCharacterization of the glycoconjugate sugar residues in developing chick esophageal epitheliumes
dc.typeinfo:eu-repo/semantics/articlees
dspace.entity.typePublicationes
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Histology and histopathology Vol. 8, nº 2 (1993)