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Related Experiment Videos

Mechanisms regulating endothelial cell barrier function.

T Stevens1, J G Garcia, D M Shasby

  • 1Department of Pharmacology, College of Medicine, University of South Alabama, Mobile, Alabama 36688, USA. tstevens@jaguar1.usouthal.edu

American Journal of Physiology. Lung Cellular and Molecular Physiology
|August 25, 2000
PubMed
Summary
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The endothelium acts as a barrier, regulating molecule transport between blood and tissues. Inflammation disrupts this barrier, increasing transport via cell gaps and intracellular routes.

Area of Science:

  • Physiology
  • Cell Biology
  • Immunology

Background:

  • The endothelium forms a critical barrier separating blood from tissues.
  • This barrier controls molecular and cellular transport between these compartments.
  • Understanding endothelial barrier function is vital for physiological and pathological processes.

Purpose of the Study:

  • To review current concepts on endothelial barrier regulation.
  • To discuss mechanisms of constitutive and inflammation-induced barrier changes.
  • To summarize findings presented at the 2000 Experimental Biology Conference symposium.

Main Methods:

  • Review of existing literature and symposium presentations.
  • Analysis of molecular and cellular mechanisms of endothelial barrier function.

Related Experiment Videos

  • Focus on changes during inflammatory conditions.

    • Main Results:

    • Endothelial barrier function is regulated by cell-cell and cell-matrix adhesion.
    • Inflammation decreases adhesion and increases tension, forming intercellular gaps.
    • Inflammation can also enhance transcellular transport of macromolecules.

    Conclusions:

    • Significant progress has been made in understanding endothelial barrier regulation.
    • Mechanisms of both normal and inflammation-impaired barrier function are increasingly understood.
    • This review consolidates current knowledge on endothelial barrier control.