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Related Experiment Videos

Hepatic sinusoidal endothelium: Ulex lectin binding.

L M Petrovic1, A Burroughs, P J Scheuer

  • 1Department of Histopathology, Royal Free Hospital, London, UK.

Histopathology
|March 1, 1989
PubMed
Summary
This summary is machine-generated.

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Normal liver sinusoidal endothelial cells lack specific markers. However, Ulex europaeus I lectin (UEA I) staining appears in cirrhosis, potentially indicating disease severity and altered liver sinusoids.

Area of Science:

  • Hepatology
  • Immunohistochemistry
  • Vascular Biology

Background:

  • Sinusoidal endothelial cells (SECs) in human liver lack specific immunocytochemical markers.
  • Ulex europaeus I lectin (UEA I) is a sensitive marker for general vascular endothelial cells.

Purpose of the Study:

  • To investigate the expression of UEA I and Factor VIII related antigen (F VIII RAg) in human liver sinusoidal endothelial cells.
  • To determine if these markers can differentiate normal SECs from those in various liver diseases, particularly cirrhosis.

Main Methods:

  • Analysis of 37 human liver biopsies (normal, cirrhosis, other liver diseases) and 3 embryonal livers.
  • Immunocytochemical staining for UEA I binding and F VIII RAg.
  • Oesophageal rings used as control tissue.

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Main Results:

  • Normal adult SECs did not stain with UEA I.
  • Positive UEA I staining was observed in SECs of 6/7 alcoholic cirrhosis and 1/25 non-cirrhotic liver specimens (acute hepatitis).
  • F VIII RAg staining was positive in SECs of 2/6 cirrhotic livers; embryonal SECs stained for UEA I but not F VIII RAg.

Conclusions:

  • Adult human liver SECs are phenotypically distinct from SECs in other locations.
  • UEA I staining in cirrhosis may indicate the transformation of sinusoids into capillaries, serving as a marker for disease severity and physiological disturbance.