Title : Bortezomib induces in HepG2 cells IkappaBalpha degradation mediated by caspase-8.

Pub. Date : 2006 Jul

PMID : 16733806






4 Functional Relationships(s)
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1 Bortezomib induces in HepG2 cells IkappaBalpha degradation mediated by caspase-8. Bortezomib NFKB inhibitor alpha Homo sapiens
2 The present paper demonstrates that the proteasome inhibitor bortezomib, which behaves as an apoptotic agent in hepatoma HepG2 cells, caused in these cells a decrease in IkappaBalpha level and a consequent increase in NF-kappaB activity. Bortezomib NFKB inhibitor alpha Homo sapiens
3 The effect already appeared at 4 h of treatment and preceded the onset of apoptosis which was observed at 24 h. Our results demonstrate that bortezomib-induced IkappaBalpha degradation occurred in conjunction with the activation of caspase-8; moreover, the decrease in IkappaBalpha level was prevented in a dose-dependent manner by the addition of z-IETD, a specific inhibitor of caspase-8. Bortezomib NFKB inhibitor alpha Homo sapiens
4 The effect already appeared at 4 h of treatment and preceded the onset of apoptosis which was observed at 24 h. Our results demonstrate that bortezomib-induced IkappaBalpha degradation occurred in conjunction with the activation of caspase-8; moreover, the decrease in IkappaBalpha level was prevented in a dose-dependent manner by the addition of z-IETD, a specific inhibitor of caspase-8. Bortezomib NFKB inhibitor alpha Homo sapiens