期刊
CELL REPORTS
卷 24, 期 6, 页码 1464-+出版社
CELL PRESS
DOI: 10.1016/j.celrep.2018.07.016
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资金
- NIH/National Institute of Dental and Craniofacial Research (NIDCR) [R56DE025098, R01DE022949]
- NATIONAL INSTITUTE OF DENTAL & CRANIOFACIAL RESEARCH [R01DE022949, R56DE025098] Funding Source: NIH RePORTER
In the adult salivary glands, the origin of replacement and regenerated acinar cells remains unclear. Although many reports describe the identification of stem cells in adult salivary glands, we have shown that differentiated acinar cells can be maintained and regenerated through self-duplication. Here, we have used genetic mouse models to further investigate acinar cell replacement and regeneration during homeostasis and after injury. Under normal conditions or after duct ligation, replacement of duct and acinar cells occurs through lineage-restricted progenitors. In contrast, after irradiation, in vivo lineage tracing shows that acinar, as well as duct, cells contribute to acinar cell regeneration, revealing that cellular plasticity is involved in salivary gland repair. Our results also indicate that even after radiation damage, several cell populations have regenerative potential for restoring salivary gland function.
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