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Cell Type-Specific Role for Reactive Oxygen Species in Nuclear Factor-Kappab Activation by Interleukin-1
Bonizzi, G.; Piette, Jacques; Merville, Marie-Paule et al.
2000In Biochemical Pharmacology, 59 (1), p. 7-11
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Abstract :
[en] The role of reactive oxygen intermediates (ROIs) in nuclear factor-kappaB (NF-kappaB) activation remains a matter of controversy. We have studied whether ROIs played any role in NF-kappaB induction by interleukin-1beta (IL-1beta) in different cell types. Our studies indicated three different pathways. IL-1beta stimulation of lymphoid cells generates ROIs, which are required for IkappaB-alpha degradation and NF-kappaB activation. The source of these ROIs is the 5-lipoxygenase (5-LOX) enzyme. In monocytic cells, ROIs are also produced in response to IL-1beta and necessary for NF-kappaB induction, but their source appears to be the NADPH oxidase complex. Finally, epithelial cells do not generate ROIs after IL-1beta stimulation, but do rapidly activate NF-kappaB. Interestingly, transfection of epithelial cells with the 5-LOX and 5-LOX activating protein expression vectors restored ROI production and ROI-dependent NF-kappaB activation in response to IL-1beta. Our data thus indicate that ROIs are cell type-specific second messengers for NF-kappaB induction by IL-1beta.
Disciplines :
Biochemistry, biophysics & molecular biology
Author, co-author :
Bonizzi, G.
Piette, Jacques ;  Université de Liège - ULiège > Département des sciences de la vie > Virologie - Immunologie
Merville, Marie-Paule ;  Université de Liège - ULiège > Département de pharmacie > Chimie médicale
Bours, Vincent ;  Université de Liège - ULiège > Département des sciences biomédicales et précliniques > Génétique générale et humaine
Language :
English
Title :
Cell Type-Specific Role for Reactive Oxygen Species in Nuclear Factor-Kappab Activation by Interleukin-1
Publication date :
01 January 2000
Journal title :
Biochemical Pharmacology
ISSN :
0006-2952
eISSN :
1873-2968
Publisher :
Elsevier, Netherlands
Volume :
59
Issue :
1
Pages :
7-11
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 11 August 2009

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