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Stem cells of the respiratory epithelium and their in vitro cultivation

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Summary

Parenchymal (epithelial or mesenchymal) stem cells are rapidly drawing both scientific and clinical attention in solid organs like the liver, skin, intestine and abdominal mesothelium, just as has been the case in the hematopoietic system. For the stem cells of these organs various definitions, markers for identification, methods of isolation and in vitro cultivation, and lineage mechanisms have been proposed and some of them are now proven to be valid and useful. In this article attempts will be made to explore whether there are stem cells in the lower respiratory system (from the trachea to the lung periphery) and what they look like. Because of its anatomical and functional complexity the stem cell concept for the respiratory system has been developing rather slowly. Nevertheless, the data available seem to indicate that in analogy to the above mentioned organs there is only one type of epithelial stem cells throughout all sections of the lower respiratory system during fetal through adult stages. They are multipotent for cell differentiation and able to yield lineage progenitors for ciliated, goblet, basal, Clara, neuroendocrine, alveolar type 1 and alveolar type 2 cells.

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    Makito Emura

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Emura, M. Stem cells of the respiratory epithelium and their in vitro cultivation. In Vitro Cell.Dev.Biol.-Animal 33, 3–14 (1997). https://doi.org/10.1007/s11626-997-0015-4

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