Abstract
Morphologically, the lung is a complex organ containing over 40 different cell types (1). Although species and strain dependent, in the Fischer rat, the most common cell types include: endothelial, 33%; Type I, 6.5%; Type II, 12%; macrophages, 8%; ciliated and nonciliated bronchiolar epithelial (Clara) cells, 1.3 and 0.7%, respectively (2,3). The lungs from an “adult” rat comprise about 4 × 108 cells (3). Unlike the liver, there is no one enzyme, such as collagenase, universally used for cell dispersion. Instead, a wide variety of proteases, such as Protease I or XIV (4,5), have been recommended. Enzyme cocktails have often been adjusted to suit the cell type being isolated: e.g., collagenase/trypsin/elastase for Type I cells (6), elastase/trypsin for Type II cells (7), and hyaluronidase/cytochalasin for tracheal epithelial cells (8). However, such proteolytic enzymes may lead to the loss of specific cell surface markers. There is general agreement that DNAse is necessary to minimize cellular reaggregation once the lung cells have been isolated. This procedure describes the use of the proteolytic enzyme subtilisin, recently introduced for the isolation of lung cells (9), which has been particularly effective in the preparation of functional Clara cells following their separation by flow cytometry (10). Type II cells have also been isolated using similar procedures (unpublished), and macrophages are lavaged from the lung during the perfusion process and can be recovered if required.
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References
Breeze, R. G. and Wheeldon, E. B. (1977) The cells of the pulmonary airways. Am. Rev. Respir. Dis. 116, 705–777.
Pinkerton, K E., Barry, B. E., O’Neil, J. J., Raub, J. A., Pratt, P. C., and Crapo, J. D. (1982) Morphologic changes in the lung during the lifespan of Fischer 344 rats. Am. J. Anat. 164, 155–174.
Lehnert, B. E., Valdez, Y. E., and Holland, L. M. (1985) Pulmonary macrophages: alveolar and interstitial populations. Exp. Lung Res. 9, 177–190.
Devereux, T. D. and Fouts, J. R. (1981) Isolation of pulmonary cells and use in studies of xenobiotic metabolism, in Methods in Enzymobgy, vol. 77 (Jakoby, W. B., ed.), Academic, NY, pp. 147–154.
Dawson, J. R., Norbeck, K., and Moldeus, P. (1982) The isolation of lung cells for the purpose of studying drug metabolism. Biochem. Pharmacol. 31, 3549–3553.
Weller, N. K. and Karnovsky, M. J. (1986) Isolation of pulmonary alveolar Type I cells from adult rats. Am J Pathol. 124, 448–456.
Leary, J. F., Finkelstein, J. N., Notter, R. H., and Shapiro, D. L. (1982) Isolation of Type II pneumocytes by laser flow cytometry. Am. Rev. Resp. Dis. 125, 325–330.
Johnson, N. F., Wilson, J. S., Habbersett, R., Thomassen, D. G., Shopp, G. M., and Smith, D. M. (1990) Separation and characterisation of basal and secretory cells from the rat trachea by flow cytometry. Cytometry 11, 395–405.
Adam, A. (1989) PhD Thesis, Faculty of Science, University of London.
Martin, J., Legg, R. F., Dinsdale, D., and White, I. N. H. (1990) Isolation of Clara cells from rat lung using flow cytometry. Biochem. Soc. Trans. 18, 664.
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© 1992 The Humana Press, Inc., Totowa, NJ
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Martin, J., White, I.N.H. (1992). Preparation of Rat Lung Cells for Flow Cytometry. In: Manson, M.M. (eds) Immunochemical Protocols. Methods in Molecular Biology, vol 10. Humana Press, Totowa, NJ. https://doi.org/10.1385/0-89603-204-3:363
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DOI: https://doi.org/10.1385/0-89603-204-3:363
Publisher Name: Humana Press, Totowa, NJ
Print ISBN: 978-0-89603-204-0
Online ISBN: 978-1-59259-497-9
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