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Regulation of Angiogenesis and Blood Supply

Rapidly dividing tumors, embryos, and wounded tissues require more oxygen than usual, lowering the oxygen concentration in the blood. At low oxygen or hypoxic conditions, an oxygen-sensitive transcription factor called the hypoxia-inducible factor 1 or HIF1 is activated. HIF1 is a dimeric protein of alpha (ɑ) and beta (β) subunits.  Under optimal oxygen conditions, HIF1β is present in the nucleus while HIF1ɑ remains in the cytosol. HIF1ɑ is hydroxylated by prolyl hydroxylase and factor...
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A Simple Bioassay for the Evaluation of Vascular Endothelial Growth Factors
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Published on: March 15, 2016

VEGF in the nervous system.

Jeffrey M Rosenstein1, Janette M Krum, Christiana Ruhrberg

  • 1Department of Anatomy and Cell Biology, The George Washington University Medical Center, Washington, DC, USA.

Organogenesis
|October 2, 2010
PubMed
Summary

Vascular endothelial growth factor (VEGF) is vital for blood vessel growth and also supports neurogenesis, neuronal health, and nerve repair. Further research is needed, but VEGF shows promise for promoting neuronal health and repair.

Keywords:
VEGFangiogenic nicheblood vesselendothelial cellglianeurogenesisneuron

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Area of Science:

  • Neuroscience
  • Developmental Biology
  • Angiogenesis

Background:

  • Vascular endothelial growth factor (VEGF) is essential for blood vessel development in vertebrate nervous systems.
  • Emerging research indicates VEGF influences neurogenesis, neuronal patterning, neuroprotection, and glial cell growth.
  • VEGF's direct neuronal effects are distinct from its role in blood vessel formation.

Purpose of the Study:

  • To summarize the multifaceted roles of VEGF in the nervous system.
  • To highlight VEGF's potential in promoting neuronal health and facilitating nerve repair.

Main Methods:

  • Review of recent scientific literature on VEGF in the nervous system.
  • Analysis of studies investigating VEGF's impact on neuronal survival, growth, and migration.
  • Examination of evidence for VEGF's role in axonal and arterial patterning.

Main Results:

  • VEGF promotes neurogenesis, neuronal patterning, neuroprotection, and glial growth.
  • VEGF treatment enhances neuronal survival and neurite outgrowth in vitro, independent of vascularization.
  • VEGF has been shown to guide neuronal migration and support co-patterning of axons and arteries.

Conclusions:

  • VEGF plays critical roles in both vascular and neural development.
  • VEGF demonstrates direct neurotrophic and neuroprotective effects.
  • VEGF represents a promising therapeutic agent for enhancing neuronal health and nerve repair.