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A core human primary tumor angiogenesis signature identifies the endothelial orphan receptor ELTD1 as a key regulator of angiogenesis.

Abstract
Limited clinical benefits derived from anti-VEGF therapy have driven the identification of new targets involved in tumor angiogenesis. Here, we report an integrative meta-analysis to define the transcriptional program underlying angiogenesis in human cancer. This approach identified ELTD1, an orphan G-protein-coupled receptor whose expression is induced by VEGF/bFGF and repressed by DLL4 signaling. Extensive analysis of multiple cancer types demonstrates significant upregulation of ELTD1 in tumor-associated endothelial cells, with a higher expression correlating with favorable prognosis. Importantly, ELTD1 silencing impairs endothelial sprouting and vessel formation in vitro and in vivo, drastically reducing tumor growth and greatly improving survival. Collectively, these results provide insight into the regulation of tumor angiogenesis and highlight ELTD1 as key player in blood vessel formation.
AuthorsMassimo Masiero, Filipa Costa Simões, Hee Dong Han, Cameron Snell, Tessa Peterkin, Esther Bridges, Lingegowda S Mangala, Sherry Yen-Yao Wu, Sunila Pradeep, Demin Li, Cheng Han, Heather Dalton, Gabriel Lopez-Berestein, Jurriaan B Tuynman, Neil Mortensen, Ji-Liang Li, Roger Patient, Anil K Sood, Alison H Banham, Adrian L Harris, Francesca M Buffa
JournalCancer cell (Cancer Cell) Vol. 24 Issue 2 Pg. 229-41 (Aug 12 2013) ISSN: 1878-3686 [Electronic] United States
PMID23871637 (Publication Type: Journal Article, Research Support, N.I.H., Extramural, Research Support, Non-U.S. Gov't, Research Support, U.S. Gov't, Non-P.H.S.)
CopyrightCopyright © 2013 The Authors. Published by Elsevier Inc. All rights reserved.
Chemical References
  • ADGRL4 protein, human
  • Receptors, G-Protein-Coupled
Topics
  • Animals
  • Cell Growth Processes (physiology)
  • Endothelial Cells (metabolism, pathology)
  • Female
  • Genetic Predisposition to Disease
  • HCT116 Cells
  • Humans
  • Mice
  • Mice, Nude
  • Neoplasms (blood supply, metabolism, pathology)
  • Neovascularization, Pathologic (metabolism, pathology)
  • Receptors, G-Protein-Coupled (genetics, metabolism)
  • Signal Transduction

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