Endothelial PERK restricts lymphoid regeneration by reducing DLL4-NOTCH3 signaling at the Pre-B niche.
Delayed immune recovery after hematopoietic stem cell (HSC) transplantation is associated with a poor clinical outcome. We study the role of unfolded protein response (ER stress) in hematopoietic regeneration within the bone marrow (BM) microenvironment. We reveal that BM endothelium PERK activation is a prominent feat...