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Blood vessel formation starts early during embryonic development, around day 7. In the extraembryonic yolk sac, mesodermal precursor cells called hemangioblast proliferate and differentiate into angioblast. Angioblasts express vascular endothelial growth factor receptor 2 or VEGFR2, which binds VEGF-A, a proangiogenic factor, guiding blood vessel formation. VEGF signaling promotes angioblasts to form a blood island in the developing embryo. Angioblasts further differentiate, giving rise to...
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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...
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Author Spotlight: Investigating Angiogenesis Through Challenges and Innovations in Assay Development
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Angiogenesis.

C D Kontos1, B H Annex

  • 1Assistant Professor of Medicine, Division of Cardiology, Department of Medicine, Duke University School of Medicine, Durham, NC, USA.

Current Atherosclerosis Reports
|December 21, 2000
PubMed
Summary
This summary is machine-generated.

Therapeutic angiogenesis aims to grow blood vessels for conditions like heart disease. Blocking angiogenesis is explored for arthritis and cancer treatment, targeting key growth factors and signaling pathways.

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Area of Science:

  • Biomedical Science
  • Vascular Biology
  • Molecular Medicine

Background:

  • Angiogenesis, or new blood vessel formation, is critical in development and disease.
  • Dysregulated angiogenesis contributes to various pathologies, including cardiovascular diseases, arthritis, and cancer.
  • Therapeutic strategies focus on either promoting or inhibiting angiogenesis.

Purpose of the Study:

  • To review fundamental concepts of vascular development and angiogenesis mechanisms.
  • To highlight key growth factors, receptors, and cell signaling pathways regulating angiogenesis.
  • To discuss potential therapeutic targets for modulating angiogenesis.

Main Methods:

  • Review of existing literature on vascular development and angiogenesis.
  • Analysis of growth factor and receptor involvement in angiogenesis.
  • Description of cell signaling pathways controlling angiogenesis.

Main Results:

  • Angiogenesis is a complex process involving intricate molecular signaling.
  • Specific growth factors and receptors are crucial mediators of blood vessel formation.
  • Understanding these mechanisms reveals targets for therapeutic intervention.

Conclusions:

  • Angiogenesis modulation offers potential treatments for diverse diseases.
  • Targeting angiogenic pathways can address inadequate tissue perfusion or pathological proliferation.
  • Further research into angiogenic mechanisms will yield novel therapeutic strategies.