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Related Experiment Videos

Endothelial-pericyte interactions in angiogenesis.

Holger Gerhardt1, Christer Betsholtz

  • 1Department of Medical Biochemistry, University of Göteborg, Medicinaregatan 9A, PO Box 440, SE 405 30, Göteborg, Sweden.

Cell and Tissue Research
|July 29, 2003
PubMed
Summary

Pericytes are crucial for blood vessel formation and function. Recent findings challenge previous views, highlighting their active role in vessel remodeling and maturation during angiogenesis.

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Area of Science:

  • Vascular Biology
  • Cell Biology
  • Regenerative Medicine

Background:

  • Pericytes, alongside endothelial cells, are key components of blood vessels.
  • Pericytes are increasingly recognized for their roles in angiogenesis and as potential therapeutic targets.
  • Defining pericytes is challenging due to their heterogeneity, plasticity, and poorly understood origins.

Purpose of the Study:

  • To review the role of pericytes in physiological angiogenesis.
  • To discuss the evolving understanding of pericyte involvement in blood vessel development.
  • To highlight the critical importance of pericytes in vascular morphogenesis and function.

Main Methods:

  • Review of current literature on pericyte biology and function.
  • Analysis of recent studies employing advanced imaging and genetic techniques.
  • Synthesis of data on pericyte interactions with endothelial cells during angiogenesis.

Main Results:

  • Pericytes are not merely passive stabilizers but actively participate in vessel sprouting and remodeling.
  • New evidence suggests pericytes associate with actively forming blood vessels, challenging the sequential model.
  • Genetic data underscore the essential role of pericytes in vascular development and function.

Conclusions:

  • Pericyte coverage is integral to vessel maturation and stabilization, not just a late-stage event.
  • Pericytes exhibit plasticity and can differentiate into various mesenchymal cell types.
  • Understanding pericyte roles is vital for addressing diseases linked to vascular dysfunction.

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