Journal
NATURE CELL BIOLOGY
Volume 14, Issue 10, Pages 1099-+Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/ncb2581
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Funding
- NIH/NCI Physical Sciences Oncology Center at MIT [U54CA143874]
- TI Pharma [T3-106]
- NIRM
- [KWF/HUBR2005-3237]
- [KWF/HUBR2005-3956]
- [EU/Health-F4-2007-200720]
- Grants-in-Aid for Scientific Research [24689036, 24112523] Funding Source: KAKEN
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Lgr5(+) intestinal stem cells generate enterocytes and secretory cells. Secretory lineage commitment requires Notch silencing. The Notch ligand Dill is expressed by a subset of immediate stem cell daughters. Lineage tracing in Dll1(GFP-ires-CreERT2) mice reveals that single Dll1(high) cells generate small, short-lived clones containing all four secretory cell types. Lineage specification thus occurs in immediate stem cell daughters through Notch lateral inhibition. Cultured Dll(1)high cells form long-lived organoids (mini-guts) on brief Wnt3A exposure. When Dll1(high) cells are genetically marked before tissue damage, stem cell tracing events occur. Thus, secretory progenitors exhibit plasticity by regaining stemness on damage.
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