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Hepatic cytokine response can be modulated using the Kupffer cell blocker gadolinium chloride in obstructive jaundice

C Jones1, S A Badger, M Hoper

  • 1Department of Surgery, Institute of Clinical Sciences, Queens University Belfast, United Kingdom.

International Journal of Surgery (London, England)
|November 22, 2012
PubMed

Insights

Gadolinium chloride (GdCl3) depletion of Kupffer cells in jaundiced rats reduced liver inflammation and enzyme abnormalities. This highlights Kupffer cells

Area of Science:

  • Hepatology
  • Immunology
  • Sepsis Research

Background:

  • Kupffer cells mediate inflammatory responses in sepsis.
  • Gadolinium chloride (GdCl3) depletes Kupffer cells.
  • Obstructive jaundice exacerbates inflammatory responses.

Purpose of the Study:

  • To investigate GdCl3-induced Kupffer cell depletion effects on hepatic inflammation during portal endotoxemia in jaundiced rats.
  • To assess the role of Kupffer cells in exaggerated inflammatory responses in obstructive jaundice.

Main Methods:

  • Wistar rats underwent bile duct ligation (BDL) followed by GdCl3 or saline administration.
  • Isolated hepatic perfusion was performed 24 hours post-treatment.
  • Cytokine levels (TNFα, IL-6) and liver enzymes (bilirubin, ALP, AST) were analyzed.
  • Kupffer cell numbers were quantified using ED1 immunohistochemistry.

Main Results:

  • GdCl3 treatment significantly reduced Kupffer cell counts.
  • Reduced Kupffer cells correlated with significantly lower hepatic TNFα and IL-6 production.
  • GdCl3 attenuated liver enzyme abnormalities (bilirubin, ALP, AST) in jaundiced rats.

Conclusions:

  • Kupffer cell depletion via GdCl3 mitigates hepatic inflammatory cytokine production in response to portal endotoxemia.
  • Hepatic Kupffer cells are critical in driving exaggerated inflammatory responses during obstructive jaundice.
Abstract

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