NDLI: Efficient adenoviral infection with IκBα reveals that macrophage tumor necrosis factor α production in rheumatoid arthritis is NF-κB dependent

Content Provider	PubMed Central
Author	Foxwell, Brian Browne, Kylie Bondeson, Jan Clarke, Chris Martin, Rainer De Brennan, Fionula Feldmann, Marc
Copyright Year	1998
Abstract	Tumor necrosis factor (TNF) α has been shown to be a major therapeutic target in rheumatoid arthritis with the success of anti-TNFα antibody clinical trials. Although signaling pathways leading to TNFα expression have been studied in some detail, there is evidence for considerable differences between individual cell types. This prompted us to investigate the intracellular signaling pathways that result in increased TNFα synthesis from macrophages in the diseased synovial joint tissue. Using an adenoviral system in vitro we report the successful delivery of genes to more than 95% of normal human macrophages. This permitted us to show, by using adenoviral transfer of IκBα, the natural inhibitor of NF-κB, that induction of TNFα in normal human macrophages by lipopolysaccharide, but not by some other stimuli, was inhibited by 80%. Furthermore the spontaneous production of TNFα from human rheumatoid joint cell cultures was inhibited by 75%, indicating that the NF-κB pathway is an essential step for TNFα synthesis in synovial macrophages and demonstrating that NF-κB should be an effective therapeutic target in this disease.
Starting Page	8211
File Format	PDF
ISSN	10916490
e-ISSN	10916490
Journal	Proceedings of the National Academy of Sciences of the United States of America
Issue Number	14
Volume Number	95
Language	English
Publisher	The National Academy of Sciences
Publisher Date	1998-07-07
Access Restriction	Open
Rights Holder	The National Academy of Sciences
Subject Keyword	Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Multidisciplinary

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