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GSE51250
Mus musculus
9 Downloadable Samples
Description
This SuperSeries is composed of the SubSeries listed below.
Publication Title
Combined targeting of JAK2 and Bcl-2/Bcl-xL to cure mutant JAK2-driven malignancies and overcome acquired resistance to JAK2 inhibitors.
Sample Metadata Fields
Specimen part, Disease, Disease stage
View Samples- Danio rerio
- 3 Downloadable Samples
IlluminaGenomeAnalyzer
Description
Through deep sequencing and functional screening in zebrafish, we find that miR-221 is essential for angiogenesis. miR-221 knockdown phenocopied defects associated with loss of the tip cell-expressed Flt4 receptor. Furthermore, miR-221 was required for tip cell proliferation and migration, as well as tip cell potential in mosaic blood vessels. miR-221 knockdown also prevented “hyper-angiogenesis” defects associated with Notch deficiency and miR-221 expression was inhibited by Notch signaling. Finally, miR-221 promoted tip cell behavior through repression of two targets: cyclin-dependent kinase inhibitor 1b (cdkn1b) and phosphoinositide-3-kinase regulatory subunit 1 (pik3r1). These results identify miR-221 as an important regulatory node through which tip cell migration and proliferation are controlled during angiogenesis. Overall design: Identification of endothelial-expressed microRNA from FACS-isolated zebrafish endothelial cells.
Publication Title
miR-221 is required for endothelial tip cell behaviors during vascular development.
Sample Metadata Fields
No sample metadata fields
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