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Bianchi F, Giannessi F, Dolfi A, et al. Properties of the esophageal epithelium in relation to organizative patterns of lymphoid infiltrations in the red-eared turtle. Tissue Cell. 1993;25(3):389-97doi: 10.1016/0040-8166(93)90080-5.
Bianchi, F., Giannessi, F., Dolfi, A., & Lupetti, M. (1993). Properties of the esophageal epithelium in relation to organizative patterns of lymphoid infiltrations in the red-eared turtle. Tissue & cell, 25(3), 389-97. https://doi.org/10.1016/0040-8166(93)90080-5
Bianchi, F, et al. "Properties of the esophageal epithelium in relation to organizative patterns of lymphoid infiltrations in the red-eared turtle." Tissue & cell vol. 25,3 (1993): 389-97. doi: https://doi.org/10.1016/0040-8166(93)90080-5
Bianchi F, Giannessi F, Dolfi A, Lupetti M. Properties of the esophageal epithelium in relation to organizative patterns of lymphoid infiltrations in the red-eared turtle. Tissue Cell. 1993 Jun;25(3):389-97. doi: 10.1016/0040-8166(93)90080-5. PMID: 18621239.
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Tissue Cell. 1993 Jun;25(3):389-97. doi: 10.1016/0040-8166(93)90080-5.

Properties of the esophageal epithelium in relation to organizative patterns of lymphoid infiltrations in the red-eared turtle.

Tissue & cell

F Bianchi, F Giannessi, A Dolfi, M Lupetti

Affiliations

  1. Chair of Histology and Embryology, Institute of Anatomy, Faculty of Medicine, University of Pisa, Pisa, Italy.

PMID: 18621239 DOI: 10.1016/0040-8166(93)90080-5

Abstract

The esophagus of the turtle, like the mucosal surfaces in other species, contains variously sized areas of lymphoid infiltration. The tunica propria and the surface epithelial layer of this area are invaded by the lymphoid cells. The features of the layer of epithelial cells which cover the lymphoid infiltrations are of a special kind: they do not possess vibratile cilia and are able to take up materials flowing into the lumen. The present paper contains further information concerning lymphoid infiltration obtained by histological and histochemical methods. The epithelial layer covering the lymphoid infiltrations is composed of cells with irregularly distributed microvilli, ciliated cells and mucous-secreting cells. After administration of silica and colloidal carbon, the microvillar epithelial cells proved to have these substances inside them, thereby accounting for the pinocytotic activity. The absorbing epithelial cells were not damaged by silica which is a macrophage-toxic agent, while the underlying macrophages are damaged. These results are compared with the features of lymphoid infiltration associated cells in various organs and animals; the hypothesis is proposed that these cells in the esophagus of turtles may originate from the covering epithelial cells.

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