Abstract
Lgr5 + intestinal stem cells generate enterocytes and secretory cells. Secretory lineage commitment requires Notch silencing. The Notch ligand Dll1 is expressed by a subset of immediate stem cell daughters. Lineage tracing in Dll1 GFP-ires-CreERT2 knock-in 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 Dll1 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.
Original language | English |
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Pages (from-to) | 1099-1104 |
Number of pages | 6 |
Journal | Nature Cell Biology |
Volume | 14 |
Issue number | 10 |
DOIs | |
Publication status | Published - 2012 Oct |
Externally published | Yes |
ASJC Scopus subject areas
- Cell Biology