Use of an antiserum against deglycosylated human mucins for cellular localization of their peptide precursors: antigenic similarities between bronchial and intestinal mucinsJM Perini, T Marianne, JJ Lafitte, G Lamblin, P Roussel and M Mazzuca Unite INSERM No. 16, Faculte de Medecine, Lille, France. Highly glycosylated regions of mucins, or glycopeptides, were obtained by proteolysis of human bronchial mucins. They were deglycosylated by treatment with a trifluoromethane sulfonic acid/anisole mixture and subsequent solvolysis with anhydrous liquid hydrogen fluoride. The resulting peptides were then used to raise an immune serum in rabbit. This immune serum was used to localize the peptide precursors of human respiratory mucins within bronchial cells, using an immunohistochemical method. Two main patterns of labeling were observed in the goblet cells: the entire cytoplasm of some goblet cells was immunoreactive, whereas in other cells the labeling was concentrated around the nucleus. In the respiratory mucous glands, the labeling was localized around or below the nucleus. The serous cells were not stained. Similar labeling was observed in human colon goblet cells. This immune serum seems to be specific for mucin-secreting cells and has a strong affinity for the perinuclear region of these cells.
Volume 37,
Issue 6,
pp. 869-875,
06/01/1989
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R. F. Dubin, S. K. Robinson, and J. H. Widdicombe Secretion of lactoferrin and lysozyme by cultures of human airway epithelium Am J Physiol Lung Cell Mol Physiol, April 1, 2004; 286(4): L750 - L755. [Abstract] [Full Text] [PDF] |
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R. Bals, U. Welsch, and T. C. G. Bosch Isolation and Molecular Characterization of Serous and Mucous Gland Cells of the Porcine Airways Am. J. Respir. Cell Mol. Biol., April 1, 1998; 18(4): 548 - 553. [Abstract] [Full Text] |
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