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| Open AccessIFNγ-Stat1 axis drives aging-associated loss of intestinal tissue homeostasis and regeneration
Omrani, Krepelova et al. report that aging-induced proinflammatory IFNγ/Stat1 signalling primes intestinal stem cells to a secretory fate and to antigen presenting cells impairing the regenerative capacity of the aging gut epithelium.
- Omid Omrani
- , Anna Krepelova
- & Francesco Neri
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| Open AccessSingle-cell chromatin profiling of the primitive gut tube reveals regulatory dynamics underlying lineage fate decisions
The primitive gut tube gives rise to all major internal organs, while underlying regulatory mechanisms are unclear. Here, the authors analyze its chromatin landscape at the single-cell level and define the epigenetic regulation of lineage fate decisions and plasticity in organ development and homeostasis.
- Ryan J. Smith
- , Hongpan Zhang
- & Tae-Hee Kim
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HEB associates with PRC2 and SMAD2/3 to regulate developmental fates
In embryonic stem cells, extracellular signals are required to derepress developmental promoters to drive lineage specification, but the proteins involved in this process remain unknown. Here the authors show that the protein HEB directly associates with the Polycomb repressive complex 2 at genes involved in mesoderm and endoderm specification.
- Se-Jin Yoon
- , Joseph W. Foley
- & Julie C. Baker