The distribution of endocrine cells along the mouse intestine: a quantitative immunocytochemical study.
AffiliationDepartment of Epithelial Biology, Paterson Institute for Cancer Research, Christie Hospital and Holt Radium Institute, Withington, Manchester, UK.
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AbstractThe topographical distribution of endocrine cells in the crypt and villus epithelium along the length of the mouse intestine was studied. Argyrophil reactivity using the Grimelius stain was used to estimate the total endocrine population of the intestine. Comparisons were then made with the fraction of endocrine cells containing glucagon like material, stained immunocytochemically using rabbit anti-glucagon antisera. A highly significant reduction in the incidence of endocrine cells (argyrophil reactive) from the proximal to distal end of the intestine was noted. However, only 10-30% of these cells contained glucagon like material in the crypts of the duodenum, jejunum and ileum, compared to 30-60% in the crypts of the colon and rectum. The distribution of endocrine cells (argyrophil reactive) was maximal in the lower regions of the proliferative zone of the crypts but showed no significant variation along the length of the villi. Cells containing glucagon like material were also most frequent in the lower regions of the proliferative zone of the crypts, but were not generally found above the bottom third of the villi. Each crypt in the small intestine contains between 3 and 5 endocrine cells one of which contained glucagon like immunoreactive material. In the colon and rectum each crypt contains about 6-8 endocrine cells, of which 3-4 contained glucagon like immunoreactive material. These results indicate that a sub-set of cells containing glucagon like material, differentiate early in the lineage of endocrine cells within the proliferative zone of the intestinal crypts.
CitationThe distribution of endocrine cells along the mouse intestine: a quantitative immunocytochemical study. 1988, 56 (3):191-9 Virchows Arch., B, Cell Pathol.
JournalVirchows Archiv. B, Cell Pathology
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