PUBLICATION

Zebrafish neuropilins are differentially expressed and interact with vascular endothelial growth factor during embryonic vascular development

Authors
Martyn, U., and Schulte-Merker, S.
ID
ZDB-PUB-040813-2
Date
2004
Source
Developmental dynamics : an official publication of the American Association of Anatomists   231(1): 33-42 (Journal)
Registered Authors
Martyn, Ulrike, Schulte-Merker, Stefan
Keywords
neuropilin, vascular endothelial growth factor, angiogenesis, arteries, veins, zebrafish, expression pattern
MeSH Terms
  • Animals
  • Blood Vessels/embryology*
  • Blood Vessels/metabolism
  • Cardiovascular Abnormalities/embryology
  • Embryo, Nonmammalian/metabolism
  • In Situ Hybridization
  • Neuropilins/genetics
  • Neuropilins/metabolism*
  • Phylogeny*
  • Receptors, Vascular Endothelial Growth Factor/genetics
  • Receptors, Vascular Endothelial Growth Factor/metabolism*
  • Vascular Endothelial Growth Factor A/metabolism
  • Zebrafish/embryology*
  • Zebrafish/genetics
  • Zebrafish/metabolism
PubMed
15305285 Full text @ Dev. Dyn.
Abstract
Neuropilin1 (Nrp1) and Neuropilin2 (Nrp2) are nonkinase vascular endothelial growth factor receptors (VEGFR) identified in several vertebrates, which function as coreceptors for the receptor tyrosine kinases VEGFR1 and VEGFR2. We identified four zebrafish nrp genes, nrp1a, nrp1b, nrp2a, and nrp2b, and characterized their function in vascular development. We show that all nrp genes display distinct expression patterns and that nrp1a and nrp1b are expressed in the dorsal aorta, while nrp2a and nrp2b transcripts could be detected in the region of the posterior cardinal vein. Knockdown of nrp1a, nrp1b, and nrp2a resulted in improper arteriovenous connections and irregular intersegmental vessel patterning, indicating that these Nrps function in the same process. Nrp2b knockdown also caused vessel malformations and a pericardial defect. In addition, we provide evidence that the newly identified Nrps synergistically interact with VEGF in vivo. Taken together, our results show that, in zebrafish, all four neuropilins are involved in VEGF-mediated vessel development. Developmental Dynamics 231:33-42, 2004. Copyright 2004 Wiley-Liss, Inc.
Genes / Markers
Figures
Expression
Phenotype
Mutation and Transgenics
Human Disease / Model Data
Sequence Targeting Reagents
Fish
Antibodies
Orthology
Engineered Foreign Genes
Mapping
Errata and Notes