Abstract:
:Pericytes regulate vessel stability and pericyte dysfunction contributes to retinopathies, stroke, and cancer. Here we define Notch as a key regulator of pericyte function during angiogenesis. In Notch1(+/-); Notch3(-/-) mice, combined deficiency of Notch1 and Notch3 altered pericyte interaction with the endothelium and reduced pericyte coverage of the retinal vasculature. Notch1 and Notch3 were shown to cooperate to promote proper vascular basement membrane formation and contribute to endothelial cell quiescence. Accordingly, loss of pericyte function due to Notch deficiency exacerbates endothelial cell activation caused by Notch1 haploinsufficiency. Mice mutant for Notch1 and Notch3 develop arteriovenous malformations and display hallmarks of the ischemic stroke disease CADASIL. Thus, Notch deficiency compromises pericyte function and contributes to vascular pathologies.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Kofler NM,Cuervo H,Uh MK,Murtomäki A,Kitajewski Jdoi
10.1038/srep16449subject
Has Abstractpub_date
2015-11-13 00:00:00pages
16449issn
2045-2322pii
srep16449journal_volume
5pub_type
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