Haematopoietic ESL-1 enables stem cell proliferation in the bone marrow by limiting TGFβ availability

Abstract

Hematopoietic stem and progenitor cell (HSPCs) proliferation is controlled by signals from the niche. Here, Leivaet al. show in vivoin mice that deletion of E-selectin ligand 1 causes quiescence of HSPCs and a reduction in niche size, which is mediated by changes of TGFß levels in the bone marrow.