Abstract
The aim was to investigate apical membranes of the epithelial cells in the upper GI* tract as a possible barrier to luminal acid and other insults, forming part of the ‘intrinsic protective mechanism’ of the mucosa. To study the integrity and transport capabilities of membrane vesicles, p.m.’s were isolated from duodenal enterocytes (furnishing BBMV’s) and histamine-stimulated parietal cells (furnishing SAV’s) and, for comparison, microsomes from resting parietal cells. The effect of trypsin on membrane vesicle integrity and function was determined. Both BBMV’s and SAV’s manifested a major population of vesicles resistant to trypsin.
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© 1987 Plenum Press, New York
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Wilkes, J.M., Ballard, H.J., Latham, J.A.E., Hirst, B.H. (1987). Gastroduodenal Epithelial Cells: The Role of the Apical Membrane in Mucosal Protection. In: Reid, E., Cook, G.M.W., Luzio, J.P. (eds) Cells, Membranes, and Disease, Including Renal. Methodological Surveys in Biochemistry and Analysis, vol 17. Springer, Boston, MA. https://doi.org/10.1007/978-1-4684-1283-3_25
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DOI: https://doi.org/10.1007/978-1-4684-1283-3_25
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