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Title: Deletion of Adam10 in endothelial cells leads to defects in organ-specific vascular structures
Authors: Glomski, Krzysztof
Monette, Sébastien
Manova, Katia
De Strooper, Bart
Saftig, Paul
Blobel, Carl P # ×
Issue Date: Jun-2011
Publisher: W.B. Saunders
Series Title: Blood vol:118 issue:4 pages:1163-1174
Abstract: During vertebrate angiogenesis, Notch regulates the cell-fate decision between vascular tip cells versus stalk cells. Canonical Notch signaling depends on sequential proteolytic events, whereby interaction of Notch with membrane-anchored ligands triggers proteolytic processing, first by Adam10 and then presenilins. This liberates the Notch intracellular domain, allowing it to enter the nucleus and activate Notch-dependent genes. Here we report that conditional inactivation of Adam10 in endothelial cells (A10ΔEC) recapitulates the increased branching and density of the retinal vasculature that is also caused by interfering with Notch signaling. Moreover, A10ΔEC mice have additional vascular abnormalities, including aberrant subcapsular hepatic veins, enlarged glomeruli, intestinal polyps containing endothelial cell masses, abnormal endochondral ossification, leading to stunted long bone growth and increased pathological neovascularization following oxygen-induced retinopathy. Our findings support a model in which Adam10 is a crucial regulator of endothelial cell-fate decisions, most likely because of its essential role in canonical Notch signaling.
URI: 
ISSN: 0006-4971
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Department of Human Genetics - miscellaneous
× corresponding author
# (joint) last author

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