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The Role of Scgb1a1+ Clara Cells in the Long-Term Maintenance and Repair of Lung Airway, but Not Alveolar, Epithelium
Open accessAbstract
Summary To directly test the contribution of Scgb1a1+ Clara cells to postnatal growth, homeostasis and repair of lung epithelium, we generated a Scgb1a1-CreERTM “knock-in” mouse line for lineage tracing these cells. Under all conditions tested the majority of Clara cells in the bronchioles both self-renew and generate ciliated cells. In the trachea, Clara cells give rise to ciliated cells but do not self-renew extensively. Nevertheless, they can contribute to tracheal repair. In the postnatal mouse lung it has been proposed that bronchioalveolar stem cells (BASCs) which co-express Scgb1a1 (Secretoglobin1a1) and SftpC (Surfactant Protein C), contribute descendants to both bronchioles and alveoli. The putative BASCs were lineage labeled in our studies. However, we find no evidence for the function of a special BASC population during postnatal growth, adult homeostasis or repair. Rather, our results support a model in which the trachea, bronchioles and alveoli are maintained by distinct populations of epithelial progenitor cells.
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Cited by
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Montoro, D. T., Haber, A. L., Biton, M., Vinarsky, V., Lin, B., Birket, S. E., Yuan, F., Chen, S., Leung, H. M., Villoria, J., et al. (2018) · Nature · doi:10.1038/s41586-018-0393-7 · Cited by 1,206
Hogan, B. L. M., Barkauskas, C. E., Chapman, H. A., Epstein, J. A., Jain, R., Hsia, C. C. W., Niklason, L., Calle, E., Le, A., Randell, S. H., et al. (2014) · Cell Stem Cell · doi:10.1016/j.stem.2014.07.012 · Cited by 876
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Metadata
- Authors
- Rawlins, E. L., Okubo, T., Xue, Y., Brass, D. M., Auten, R. L., Hasegawa, H., Wang, F., & Hogan, B. L. M.
- Venue
- Cell Stem Cell
- Publisher
- Elsevier BV
- Published
- 2009-06
- Volume
- 4
- Issue
- 6
- Pages
- 525-534
- ISSN
- 1875-9777 (ISSN-L)
- 1934-5909
- OpenAlex
- W2007610579
- Cited by
- 853
- References
- 0
- FWCI
- 37.35
- Type
- journal article
- Language
- en
- Open access
- bronze
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- Rawlins, E. L., Okubo, T., Xue, Y., Brass, D. M., Auten, R. L., Hasegawa, H., Wang, F., & Hogan, B. L. M. (2009). The Role of Scgb1a1+ Clara Cells in the Long-Term Maintenance and Repair of Lung Airway, but Not Alveolar, Epithelium. Cell Stem Cell. https://doi.org/10.1016/j.stem.2009.04.002
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