Abstract:
:Recent advances in single-cell transcriptomics techniques have opened the door to the study of gene regulatory networks (GRNs) at the single-cell level. Here, we studied the GRNs controlling the emergence of hematopoietic stem and progenitor cells from mouse embryonic endothelium using a combination of single-cell transcriptome assays. We found that a heptad of transcription factors (Runx1, Gata2, Tal1, Fli1, Lyl1, Erg and Lmo2) is specifically co-expressed in an intermediate population expressing both endothelial and hematopoietic markers. Within the heptad, we identified two sets of factors of opposing functions: one (Erg/Fli1) promoting the endothelial cell fate, the other (Runx1/Gata2) promoting the hematopoietic fate. Surprisingly, our data suggest that even though Fli1 initially supports the endothelial cell fate, it acquires a pro-hematopoietic role when co-expressed with Runx1. This work demonstrates the power of single-cell RNA-sequencing for characterizing complex transcription factor dynamics.
journal_name
Elifejournal_title
eLifeauthors
Bergiers I,Andrews T,Vargel Bölükbaşı Ö,Buness A,Janosz E,Lopez-Anguita N,Ganter K,Kosim K,Celen C,Itır Perçin G,Collier P,Baying B,Benes V,Hemberg M,Lancrin Cdoi
10.7554/eLife.29312subject
Has Abstractpub_date
2018-03-20 00:00:00issn
2050-084Xpii
29312journal_volume
7pub_type
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