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Related Experiment Videos

Leukocyte adhesion molecules in diseased corneas

W Philipp1, W Göttinger

  • 1Department of Ophthalmology, University of Innsbruck, Austria.

Investigative Ophthalmology & Visual Science
|July 1, 1993
PubMed
Summary

Leukocyte adhesion molecules like ICAM-1, E-selectin, and VCAM-1 are present in diseased corneas, indicating their role in corneal inflammation and pathogenesis.

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Area of Science:

  • Ophthalmology
  • Immunology
  • Cell Biology

Background:

  • Leukocyte adhesion molecules play a critical role in inflammatory processes.
  • Understanding their presence in corneal diseases is key to defining their pathogenic role.

Purpose of the Study:

  • To investigate the expression and distribution of intercellular adhesion molecule-1 (ICAM-1), E-selectin, and vascular cell adhesion molecule-1 (VCAM-1) in various corneal diseases.
  • To correlate the presence of these molecules with the pathogenesis of corneal inflammation.

Main Methods:

  • Immunohistochemical staining of 55 human corneas with various inflammatory and degenerative diseases using monoclonal antibodies.
  • Characterization of inflammatory infiltrates using a panel of monoclonal antibodies.

Main Results:

  • ICAM-1 expression was observed on epithelial cells, keratocytes, corneal endothelial cells, and vascular endothelial cells in multiple corneal diseases.
  • E-selectin was found on vascular endothelial cells in bacterial keratitis and chronic inflammatory conditions.
  • VCAM-1 was expressed on stromal vascular endothelial cells and inflammatory cells of the macrophage-monocyte lineage in inflamed corneas.

Conclusions:

  • ICAM-1, E-selectin, and VCAM-1 are expressed in diseased corneas.
  • These adhesion molecules are often localized to areas of inflammation, suggesting their involvement in corneal inflammatory pathogenesis.

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