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Angiogenesis: models and modulators

G W Cockerill1, J R Gamble, M A Vadas

  • 1Hanson Center for Cancer Research, Institute of Medical and Veterinary Research, Adelaide, South Australia.

International Review of Cytology
|January 1, 1995
PubMed
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This study details the four stages of in vivo angiogenesis, from cell differentiation and matrix digestion to vessel patency. It reviews models and discusses factors that enhance or inhibit this crucial blood vessel formation process.

Area of Science:

  • Biomedical Sciences
  • Cell Biology
  • Physiology

Background:

  • Angiogenesis, the formation of new blood vessels, is a complex process vital for development and repair.
  • It involves distinct stages: cell differentiation, proliferation, migration, and vessel maturation.
  • Understanding angiogenesis is crucial for therapeutic interventions in various diseases.

Purpose of the Study:

  • To delineate the four distinct stages of in vivo angiogenesis.
  • To evaluate existing models for their representation of angiogenic phases.
  • To discuss factors that modulate angiogenesis, including enhancers and inhibitors.

Main Methods:

  • Review and discussion of current scientific literature on angiogenesis.
  • Analysis of models representing the in vivo angiogenic process.

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  • Compilation of known angiogenic enhancers and inhibitors.

    • Main Results:

    • Angiogenesis proceeds through four defined stages: proteolytic balance, proliferation, migration, and vessel patency.
    • Various molecules like vascular endothelial growth factor (VEGF) and transforming growth factor beta (TGF-β) enhance angiogenesis.
    • Inhibitors include heparin, steroids, and thrombospondin, offering potential therapeutic targets.

    Conclusions:

    • The four-stage model provides a framework for understanding in vivo angiogenesis.
    • A wide array of endogenous and exogenous factors significantly influence angiogenic processes.
    • Further research into these modulators can lead to novel therapeutic strategies for angiogenesis-related conditions.