Multispecies RNA tomography reveals regulators of hematopoietic stem cell birth in the embryonic aorta.

ABSTRACT: 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-t

SUBMITTER: Yvernogeau L 

PROVIDER: S-EPMC7515669 | biostudies-literature | 2020 Aug

REPOSITORIES: biostudies-literature