期刊
STEM CELLS
卷 27, 期 3, 页码 606-611出版社
WILEY
DOI: 10.1002/stem.10
关键词
Lung; Alveolar; Bronchiolar
资金
- Harvard Stem Cell Institute Seed Grant
- NHLBI [RO1HL090136]
- NATIONAL HEART, LUNG, AND BLOOD INSTITUTE [R01HL090136] Funding Source: NIH RePORTER
In two separate articles published in this issue, Teisanu et al. and McQualter et al. report the use of flow cytometry and cell sorting to identify putative bronchiolar stem cells that are low in expression for the cell surface marker Sca-1 yet negative for CD34, and a mesenchymal, fibroblastic progenitor cell population from the lung that is positive for Sca-1, respectively. At first glance, these studies may seem to suggest that Sca-1 and CD34 are not markers of an epithelial stem cell population in the lung, as we previously determined in studies that identified bronchioalveolar stem cells (BASCs), and may also appear to contradict each other. However, here we point to evidence that the findings of these three studies are not mutually exclusive, and rather, that the different cell isolation and culturing protocols used in these studies have allowed for the identification of unique pulmonary cell populations. Rather than discounting previous work on BASCs, these studies reveal the existence of new methods and new cell types that will be interesting to use in future functional tests for their importance in lung biology and lung disease. STEM CELLS 2009; 27: 606-611
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