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Related Concept Videos

Mechanism of Angiogenesis01:10

Mechanism of Angiogenesis

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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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Related Experiment Video

Updated: Apr 5, 2026

The Arteriovenous AV Loop in a Small Animal Model to Study Angiogenesis and Vascularized Tissue Engineering
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[Angiogenesis - possibilities, problems and perspectives].

Agata Kurzyk

    Postepy Biochemii
    |August 19, 2015
    PubMed
    Summary

    Angiogenesis, the formation of new blood vessels, is crucial for healing and disease. This review covers key factors regulating angiogenesis and their therapeutic applications in anti-angiogenic therapy.

    Area of Science:

    • * Physiology and Pathophysiology: Focuses on the biological process of angiogenesis, including its role in normal physiological functions and pathological conditions.
    • * Molecular Biology: Investigates the various pro-angiogenic and anti-angiogenic factors that regulate blood vessel formation.
    • * Pharmacology: Explores the mechanisms of action for anti-angiogenic drugs and their therapeutic potential.

    Context:

    • * Angiogenesis is vital for physiological processes like wound healing and placenta development.
    • * Aberrant angiogenesis is implicated in diseases such as cancer, ischemic conditions, and chronic inflammation.
    • * Understanding angiogenic factor regulation is key to developing novel therapeutic strategies.

    Purpose:

    • * To review the fundamental mechanisms regulating angiogenesis.
    • * To provide an overview of significant angiogenic factors and their inhibitors.
    • * To discuss the mechanisms of current anti-angiogenic drugs and ongoing research in anti-angiogenic therapy.

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    Summary:

    • * This article reviews the complex process of angiogenesis, detailing its physiological and pathological roles.
    • * It highlights key pro-angiogenic and anti-angiogenic factors and their regulatory functions.
    • * The review examines the mechanisms of action for existing anti-angiogenic therapies and explores future research directions.

    Impact:

    • * Provides a comprehensive understanding of angiogenesis regulation for researchers and clinicians.
    • * Informs the development of new therapeutic agents targeting angiogenesis for various diseases.
    • * Contributes to advancing anti-angiogenic therapy for conditions like cancer and ischemic diseases.