What question did this study set out to answer?

To determine how proteasome inhibition influences cell survival and the production of interleukin-8 in human hepatocytes and hepatoma cells.

October 23, 2003Hepatology

Inhibition of Proteasome Function Leads to Nf–κB–Independent Il–8 Expression in Human Hepatocytes

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To determine how proteasome inhibition influences cell survival and the production of interleukin-8 in human hepatocytes and hepatoma cells.
Treated cultured human fetal hepatocytes and hepatoma cells with proteasome inhibitors.
Quantified apoptotic cell death alongside interleukin-8 (IL-8) expression at both the protein and messenger RNA levels.
Analyzed underlying signaling pathways by measuring nuclear factor-kappaB (NF-κB), c-Jun N-terminal kinase (JNK), and activator protein-1 (AP-1) activity.
Inhibition of proteasome activity promoted apoptotic death in human hepatocytes while concurrently elevating IL-8 mRNA and protein release.
Upregulation of IL-8 occurred independently of NF-κB activation and was accompanied by increased activity of JNK and AP-1.

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Implication

Experimental study reveals proteasome inhibition triggers apoptotic death and elevates interleukin-8 in human hepatocytes, suggesting a mechanism driving neutrophil infiltration in liver injury.

Cite This Study

Joshi‐Barve et al. (2003) studied this question.

synapsesocial.com/papers/6a7cc85c0d1c97f421a8b80c https://doi.org/10.1053/jhep.2003.50470

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Implication

Experimental study reveals proteasome inhibition triggers apoptotic death and elevates interleukin-8 in human hepatocytes, suggesting a mechanism driving neutrophil infiltration in liver injury.

Inhibition of Proteasome Function Leads to Nf–κB–Independent Il–8 Expression in Human Hepatocytes

Key Points

Discussion

Implication

Cite This Study

Inhibition of Proteasome Function Leads to Nf–κB–Independent Il–8 Expression in Human Hepatocytes

Key Points

Discussion

Implication

Cite This Study

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