Endocrine-like cells of the pulmonary epithelium of the human adult lung |
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Authors: | Dr. Esther Hage J. Hage G. Juel |
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Affiliation: | (1) Institute of Pathology, Department of Otology, Rhinology and Laryngology, and Department of Thoracic and Cardiovascular Surgery, Odense University Hospital, Odense, Denmark;(2) University Institute of Pathology, Odense Hospital, DK-5000 Odense, Denmark |
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Abstract: | Summary The morphological and histochemical characteristics of endocrinelike cells of the pulmonary epithelium of the right lower lobe of 12 human adult lungs were studied.Few cells were reactive to the argyrophil silver method of Grimelius and of Sevier and Munger and cells with a similar morphology and distribution emitted a green or yellow fluorescence after treatment of the lung epithelium with the amine precursors L-DOPA or L-HTP, respectively. A greater number of cells seems to be demonstrated by electron microscopy. The cells were characterized by small, round secretory granules showing a central dense core and a very thin clear halo between the core and the surrounding membrane.The cells are thought to be related to the endocrine-like cells of the pulmonary epithelium of the human foetal lung and to cells of carcinoids of larger bronchi. |
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Keywords: | Pulmonary epithelium Human adult lung Endocrine cells |
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