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| Item Type: | Article |
|---|---|
| Title: | The role of Sox9 in mouse mammary gland development and maintenance of mammary stem and luminal progenitor cells |
| Creators Name: | Malhotra, G.K., Zhao, X., Edwards, E., Kopp, J.L., Naramura, M., Sander, M., Band, H. and Band, V. |
| Abstract: | BACKGROUND: Identification and characterization of molecular controls that regulate mammary stem and progenitor cell homeostasis are critical to our understanding of normal mammary gland development and its pathology. RESULTS: We demonstrate that conditional knockout of Sox9 in the mouse mammary gland results in impaired postnatal development. In short-term lineage tracing in the postnatal mouse mammary gland using Sox9-CreER driven reporters, Sox9 marked primarily the luminal progenitors and bipotent stem/progenitor cells within the basal mammary epithelial compartment. In contrast, long-term lineage tracing studies demonstrate that Sox9+ precursors gave rise to both luminal and myoepithelial cell lineages. Finally, fate mapping of Sox9 deleted cells demonstrates that Sox9 is essential for luminal, but not myoepithelial, lineage commitment and proliferation. CONCLUSIONS: These studies identify Sox9 as a key regulator of mammary gland development and stem/progenitor maintenance. |
| Keywords: | SOX9, Stem Cells, Luminal Progenitor Cells, Mammary Gland Development, Cre-lox, Knockout, Animals, Mice |
| Source: | BMC Developmental Biology |
| ISSN: | 1471-213X |
| Publisher: | BioMed Central |
| Volume: | 14 |
| Page Range: | 47 |
| Date: | 20 December 2014 |
| Official Publication: | https://doi.org/10.1186/s12861-014-0047-4 |
| PubMed: | View item in PubMed |
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