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Vimentin-positive cells in the villus epithelium of the rabbit small intestine

Histochemistry and Cell Biology Aims and scope Submit manuscript

Abstract.

In rabbit intestinal epithelium, vimentin intermediate filaments are selectively expressed in the M cells of follicle-associated epithelium (FAE). To find intestinal epithelial cells belonging to the M cell lineage, vimentin was detected immunohistochemically in the rabbit small and large intestines. Vimentin-positive columnar cells were scattered throughout the villus epithelium of the small intestine. In their cytoplasm, vimentin was located from the perinuclear region to the cell membrane touching intraepithelial lymphocytes. These cells had microvilli shorter than those of absorptive cells, and the alkaline phosphatase activity of the microvilli was markedly weaker than that of absorptive cell microvilli. Glycoconjugates on the surface of the microvilli were alcian blue positive and periodic acid-Schiff negative. The morphological and histochemical features of these vimentin-positive villus epithelial cells differed from those of adjacent absorptive cells and closely resembled those of the M cells in FAE covering Peyer's patches and solitary lymphatic nodules. These results suggest that the vimentin-positive cells in the villus epithelium belong to the M cell lineage.

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Iwatsuki, H., Ogawa, C. & Suda, M. Vimentin-positive cells in the villus epithelium of the rabbit small intestine. Histochem Cell Biol 117, 363–370 (2002). https://doi.org/10.1007/s00418-002-0389-z

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  • DOI: https://doi.org/10.1007/s00418-002-0389-z

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