TY - JOUR
T1 - Multispecies RNA tomography reveals regulators of hematopoietic stem cell birth in the embryonic aorta
AU - Yvernogeau, Laurent
AU - Klaus, Anna
AU - Maas, Joris
AU - Morin-Poulard, Ismaël
AU - Weijts, Bart
AU - Schulte-Merker, Stefan
AU - Berezikov, Eugene
AU - Junker, Jan Philipp
AU - Robin, Catherine
N1 - © 2020 by The American Society of Hematology.
PY - 2020/8/13
Y1 - 2020/8/13
N2 - The defined location of a stem cell within a niche regulates its fate, behavior, and molecular identity via a complex extrinsic regulation that is far from being fully elucidated. To explore the molecular characteristics and key components of the aortic microenvironment, where the first hematopoietic stem cells are generated during development, we performed genome-wide RNA tomography sequencing on zebrafish, chicken, mouse, and human embryos. The resulting anterior-posterior and dorsal-ventral transcriptional maps provided a powerful resource for exploring genes and regulatory pathways active in the aortic microenvironment. By performing interspecies comparative RNA sequencing analyses and functional assays, we explored the complexity of the aortic microenvironment landscape and the fine-tuning of various factors interacting to control hematopoietic stem cell generation, both in time and space in vivo, including the ligand-receptor couple ADM-RAMP2 and SVEP1. Understanding the regulatory function of the local environment will pave the way for improved stem cell production in vitro and clinical cell therapy.
AB - The defined location of a stem cell within a niche regulates its fate, behavior, and molecular identity via a complex extrinsic regulation that is far from being fully elucidated. To explore the molecular characteristics and key components of the aortic microenvironment, where the first hematopoietic stem cells are generated during development, we performed genome-wide RNA tomography sequencing on zebrafish, chicken, mouse, and human embryos. The resulting anterior-posterior and dorsal-ventral transcriptional maps provided a powerful resource for exploring genes and regulatory pathways active in the aortic microenvironment. By performing interspecies comparative RNA sequencing analyses and functional assays, we explored the complexity of the aortic microenvironment landscape and the fine-tuning of various factors interacting to control hematopoietic stem cell generation, both in time and space in vivo, including the ligand-receptor couple ADM-RAMP2 and SVEP1. Understanding the regulatory function of the local environment will pave the way for improved stem cell production in vitro and clinical cell therapy.
U2 - 10.1182/blood.2019004446
DO - 10.1182/blood.2019004446
M3 - Article
C2 - 32457985
SN - 0006-4971
VL - 136
SP - 831
EP - 844
JO - Blood
JF - Blood
IS - 7
ER -