VEGF-A stimulates ADAM17-dependent shedding of VEGFR2 and crosstalk between VEGFR2 and ERK signaling

Circ Res. 2008 Oct 24;103(9):916-8. doi: 10.1161/CIRCRESAHA.108.184416. Epub 2008 Sep 25.

Abstract

Vascular endothelial growth factor (VEGF)-A and the VEGF receptors are critical for regulating angiogenesis during development and homeostasis and in pathological conditions, such as cancer and proliferative retinopathies. Most effects of VEGF-A are mediated by the VEGFR2 and its coreceptor, neuropilin (NRP)-1. Here, we show that VEGFR2 is shed from cells by the metalloprotease disintegrin ADAM17, whereas NRP-1 is released by ADAM10. VEGF-A enhances VEGFR2 shedding by ADAM17 but not shedding of NRP-1 by ADAM10. VEGF-A activates ADAM17 via the extracellular signal-regulated kinase (ERK) and mitogen-activated protein kinase pathways, thereby also triggering shedding of other ADAM17 substrates, including tumor necrosis factor alpha, transforming growth factor alpha, heparin-binding epidermal growth factor-like growth factor, and Tie-2. Interestingly, an ADAM17-selective inhibitor shortens the duration of VEGF-A-stimulated ERK phosphorylation in human umbilical vein endothelial cells, providing evidence for an ADAM17-dependent crosstalk between the VEGFR2 and ERK signaling. Targeting the sheddases of VEGFR2 or NRP-1 might offer new opportunities to modulate VEGF-A signaling, an already-established target for treatment of pathological neovascularization.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't

MeSH terms

  • ADAM Proteins / deficiency
  • ADAM Proteins / genetics
  • ADAM Proteins / metabolism*
  • ADAM10 Protein
  • ADAM17 Protein
  • Amyloid Precursor Protein Secretases / metabolism
  • Animals
  • COS Cells
  • Chlorocebus aethiops
  • Endothelial Cells / enzymology
  • Extracellular Signal-Regulated MAP Kinases / metabolism*
  • Fibroblasts / enzymology
  • Humans
  • Membrane Proteins / metabolism
  • Mice
  • Mice, Knockout
  • Neuropilin-1 / metabolism
  • Recombinant Fusion Proteins / metabolism
  • Signal Transduction*
  • Swine
  • Time Factors
  • Transfection
  • Vascular Endothelial Growth Factor A / metabolism*
  • Vascular Endothelial Growth Factor Receptor-2 / genetics
  • Vascular Endothelial Growth Factor Receptor-2 / metabolism*

Substances

  • Membrane Proteins
  • Recombinant Fusion Proteins
  • VEGFA protein, human
  • Vascular Endothelial Growth Factor A
  • vascular endothelial growth factor A, mouse
  • Neuropilin-1
  • Vascular Endothelial Growth Factor Receptor-2
  • Extracellular Signal-Regulated MAP Kinases
  • Amyloid Precursor Protein Secretases
  • ADAM Proteins
  • ADAM10 Protein
  • Adam10 protein, mouse
  • ADAM17 Protein
  • ADAM17 protein, human
  • Adam17 protein, mouse