PUBLICATION
Combinatorial regulation of endothelial gene expression by ets and forkhead transcription factors
- Authors
- De Val, S., Chi, N.C., Meadows, S.M., Minovitsky, S., Anderson, J.P., Harris, I.S., Ehlers, M.L., Agarwal, P., Visel, A., Xu, S.M., Pennacchio, L.A., Dubchak, I., Krieg, P.A., Stainier, D.Y., and Black, B.L.
- ID
- ZDB-PUB-081218-12
- Date
- 2008
- Source
- Cell 135(6): 1053-1064 (Journal)
- Registered Authors
- Chi, Neil C., Stainier, Didier
- Keywords
- DEVBIO, RNA
- MeSH Terms
-
- Humans
- Forkhead Transcription Factors/metabolism*
- Gene Expression Regulation, Developmental*
- Enhancer Elements, Genetic*
- Animals
- PubMed
- 19070576 Full text @ Cell
Abstract
Vascular development begins when mesodermal cells differentiate into endothelial cells, which then form primitive vessels. It has been hypothesized that endothelial-specific gene expression may be regulated combinatorially, but the transcriptional mechanisms governing specificity in vascular gene expression remain incompletely understood. Here, we identify a 44 bp transcriptional enhancer that is sufficient to direct expression specifically and exclusively to the developing vascular endothelium. This enhancer is regulated by a composite cis-acting element, the FOX:ETS motif, which is bound and synergistically activated by Forkhead and Ets transcription factors. We demonstrate that coexpression of the Forkhead protein FoxC2 and the Ets protein Etv2 induces ectopic expression of vascular genes in Xenopus embryos, and that combinatorial knockdown of the orthologous genes in zebrafish embryos disrupts vascular development. Finally, we show that FOX:ETS motifs are present in many known endothelial-specific enhancers and that this motif is an efficient predictor of endothelial enhancers in the human genome.
Genes / Markers
Figure Gallery (1 images)
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Orthology
Engineered Foreign Genes
Mapping