Cloning and characterization of developmental endothelial locus-1: an embryonic endothelial cell protein that binds the alphavbeta3 integrin receptor.

Journal Article (Journal Article)

We have taken advantage of an enhancer trap event in a line of transgenic mice to identify a unique developmentally regulated endothelial cell locus (Del1). The protein encoded in this locus contains three EGF-like repeats homologous to those in Notch and related proteins, including an EGF-like repeat that contains an RGD motif, and two discoidin I-like domains. Del1 is shown to be a matrix protein and to promote adhesion of endothelial cells through interaction with the alphavbeta3 integrin receptor. Embryonic endothelial-like yolk sac cells expressing recombinant Del1 protein, or grown on an extracellular matrix containing Del1 protein, are inhibited from forming vascular-like structures. Expression of Del1 protein in the chick chorioallantoic membrane leads to loss of vascular integrity and promotes vessel remodeling. Del1 is thus a new ligand for the alphavbeta3 integrin receptor and may function to regulate vascular morphogenesis or remodeling in embryonic development.

Full Text

Duke Authors

Cited Authors

  • Hidai, C; Zupancic, T; Penta, K; Mikhail, A; Kawana, M; Quertermous, EE; Aoka, Y; Fukagawa, M; Matsui, Y; Platika, D; Auerbach, R; Hogan, BL; Snodgrass, R; Quertermous, T

Published Date

  • January 1, 1998

Published In

Volume / Issue

  • 12 / 1

Start / End Page

  • 21 - 33

PubMed ID

  • 9420328

Pubmed Central ID

  • PMC529342

International Standard Serial Number (ISSN)

  • 0890-9369

Digital Object Identifier (DOI)

  • 10.1101/gad.12.1.21


  • eng

Conference Location

  • United States