PMID: 8965387Sep 1, 1996Paper

A study about the mechanism of hepatocyte injury induced by endotoxin--interaction of Kupffer cells and polymorphonuclear neutrophils (PMNs)

Nihon Shokakibyo Gakkai zasshi = The Japanese journal of gastro-enterology
A MuraiG Nakagawara

Abstract

Focusing our attention on the TNF (tumor necrosis factor) produced by Kupffer cells (KCs). The role of KCs and polymorphonuclear neutrophils (PMNs) in endotoxin (LPS)-induced hepatocellular injury was investigated. This study used the culture fluid supernatant of KCs which had been stimulated with LPS as the "LPS stimulation supernatant", and evaluated hepatocellular injury as ornithine carbamyl transferase percent leakage. There was no difference between groups I (HCs: hepatocytes) and II (HCs + PMNs), but there were differences between groups I and III (HCs + LPS stimulation supernatant, groups II and IV (HCs + LPS stimulation supernatant + PMNs), and III and IV. There was no significant difference between III and V (III + anti-TNF antibody), but a difference was found between IV and VI (IV + anti-TNF antibody). These findings suggest that PMNs activated by KCs-generated TNF as well as KCs-derived humoral factors other than TNF play a role in the development of LPS-induced hepatocellular injury.

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