Zebrafish neuropilins are differentially expressed and interact with vascular endothelial growth factor during embryonic vascular development
- Martyn, U., and Schulte-Merker, S.
- Developmental dynamics : an official publication of the American Association of Anatomists 231(1): 33-42 (Journal)
- Registered Authors
- Martyn, Ulrike, Schulte-Merker, Stefan
- neuropilin, vascular endothelial growth factor, angiogenesis, arteries, veins, zebrafish, expression pattern
- MeSH Terms
- Blood Vessels/embryology*
- Blood Vessels/metabolism
- Cardiovascular Abnormalities/embryology
- Embryo, Nonmammalian/metabolism
- In Situ Hybridization
- Receptors, Vascular Endothelial Growth Factor/genetics
- Receptors, Vascular Endothelial Growth Factor/metabolism*
- Vascular Endothelial Growth Factor A/metabolism
- 15305285 Full text @ Dev. Dyn.
Martyn, U., and Schulte-Merker, S. (2004) Zebrafish neuropilins are differentially expressed and interact with vascular endothelial growth factor during embryonic vascular development. Developmental dynamics : an official publication of the American Association of Anatomists. 231(1):33-42.
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
Mutation and Transgenics
Human Disease / Model Data
Sequence Targeting Reagents
Engineered Foreign Genes
Errata and Notes