Hematopoietic stem cells are generated during development, though how and when they become dormant long term-HSCs remains unclear. Here they show that retinoic acid receptor levels are regulated by a IκBα-PRC2 axis in HSCs, and that IκBα KO mice have HSCs that are fewer in number, but functionally and molecularly more dormant.
- Roshana Thambyrajah
- Maria Maqueda
- Anna Bigas