Abstract:
:Netrins are secreted molecules with roles in axonal growth and angiogenesis. The Netrin receptor UNC5B is required during embryonic development for vascular patterning, suggesting that it may also contribute to postnatal and pathological angiogenesis. Here we show that unc5b is down-regulated in quiescent adult vasculature, but re-expressed during sprouting angiogenesis in matrigel and tumor implants. Stimulation of UNC5B-expressing neovessels with an agonist (Netrin-1) inhibits sprouting angiogenesis. Genetic loss of function of unc5b reduces Netrin-1-mediated angiogenesis inhibition. Expression of UNC5B full-length receptor also triggers endothelial cell repulsion in response to Netrin-1 in vitro, whereas a truncated UNC5B lacking the intracellular signaling domain fails to induce repulsion. These data show that UNC5B activation inhibits sprouting angiogenesis, thus identifying UNC5B as a potential anti-angiogenic target.
journal_name
Genes Devjournal_title
Genes & developmentauthors
Larrivée B,Freitas C,Trombe M,Lv X,Delafarge B,Yuan L,Bouvrée K,Bréant C,Del Toro R,Bréchot N,Germain S,Bono F,Dol F,Claes F,Fischer C,Autiero M,Thomas JL,Carmeliet P,Tessier-Lavigne M,Eichmann Adoi
10.1101/gad.437807subject
Has Abstractpub_date
2007-10-01 00:00:00pages
2433-47issue
19eissn
0890-9369issn
1549-5477pii
21/19/2433journal_volume
21pub_type
杂志文章abstract::Hedgehog signaling has been linked to cell proliferation in a variety of systems; however, its effects on the cell cycle have not been closely studied. In the vertebrate retina, Hedgehog's effects are controversial, with some reports emphasizing increased proliferation and others pointing to a role in cell cycle exit....
journal_title:Genes & development
pub_type: 杂志文章
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journal_title:Genes & development
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journal_title:Genes & development
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journal_title:Genes & development
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journal_title:Genes & development
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pub_type: 评论
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journal_title:Genes & development
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journal_title:Genes & development
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journal_title:Genes & development
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journal_title:Genes & development
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journal_title:Genes & development
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journal_title:Genes & development
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