A transient wave of perinatal hematopoiesis in vertebrates

One of the main challenges of regenerative medicine is to produce hematopoietic stem cells (HSCs) for therapeutic purposes. Researchers from the Institut de Biologie Paris-Seine1 are demonstrating the existence of a new hematopoietic wave from resident hemogenic endothelial cells in the bone marrow of the late fetus and young adult, in collaboration with the Ubrecht Institute (Netherlands)2. This wave joins the end of embryonic hematopoiesis with the beginning of medullar hematopoiesis in chicken and mice. The results of this study are published in the journal Nature Cell Biologyand was the subject of a news item on the INSB website4.

© Thierry Jaffredo

A-C: Location and fate of the lateral plate mesoderm (LPM, blue) and pre-somitic mesoderm (PSM, green) at three times representative and equivalent of chicken and mouse development. A: PSM and LPM in mouse embryos embryonic days (E)1.5 and E9. LPM: mesoderm located laterally and ventrally with respect to the PSM. B: The PSM is subdivided into somites, which give rise to muscles, vessels and vertebrae. The hemogenic ECs of the aorta and associated hematopoietic clusters are exclusively from the LPM. C: In young adults, bone and marrow come from the LPM, the vascular system of the PSM. Most hematopoietic stem cells and hematopoietic progenitors (HSPCs) in the bone marrow come from the aorta. We show a de novo production by the endothelium of the bone marrow derived from PSM.


1Laboratoire Biologie du Développement, Team Migration and Differentiation of Hematopoietic Stem Cells: /en/research/developmental-biology-laboratory/migration-and-differentiation-of-hematopoietic-stem-cells

2Hubrecht Institute: https://www.hubrecht.eu/

3In vivo generation of haematopoietic stem/progenitor cells from bone marrow-derived haemogenic endothelium
Yvernogeau L, Gautier R, Petit L, Khoury H, Relaix F, Ribes V, Sang H, Charbord P, Michèle Souyri M, Robin C, Jaffredo T
Nature Cell Biology, 4 Nov 2019 https://doi.org/10.1038/s41556-019-0410-6

4Discovery of a transient wave of perinatal hematopoiesis through endothelial-hematopoietic transition in vertebrates: https://insb.cnrs.fr/fr/cnrsinfo/discovery-transient-wave-perinatal-hematopoiesis-through-endothelial-hematopoietic