Article (Scientific journals)
Pro-inflammatory properties for thiazolidinediones.
Desmet, Christophe; Warzée, Barbara; Gosset, Philippe et al.
2005In Biochemical Pharmacology, 69 (2), p. 255-265
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Keywords :
Cytokines; Inflammation; Mitogen-activated protein kinases; Nuclear factor-kB; Peroxisome proliferator-activated receptor g; Thiazolidinediones
Abstract :
[en] Thiazolidinediones (TZDs) are pharmacological ligands of the peroxisome proliferator-activated receptor (PPAR)-gamma that are extensively used in the treatment of type II diabetes. Recently, an anti-inflammatory potential for TZDs has been suggested, based on observations that these compounds may inhibit pro-inflammatory cytokine expression in vitro and may attenuate the inflammatory response in vivo. Here, we show that the TZDs rosiglitazone (RSG) and troglitazone (TRO) do not inhibit the inflammatory response to tumor necrosis factor (TNF)-alpha in various epithelial cell types. On the contrary, both RSG and TRO significantly potentiated TNF-alpha-induced production of granulocyte/macrophage-colony-stimulating factor, interleukin (IL)-6 and/or IL-8 in these cells. This increase in pro-inflammatory cytokine expression was functionally significant as supernatants from cells co-treated with TNF-alpha and TZDs displayed increased neutrophil pro-survival activity when compared with supernatants from cells treated with TNF-alpha alone. Additionally, it was shown that TZDs enhance cytokine expression at the transcriptional level, but that the pro-inflammatory effects of TZDs are independent on PPARgamma, nuclear factor kappaB or mitogen-activated protein kinase activation. Our study shows that TZDs may potentiate the inflammatory response in epithelial cells, a previously unappreciated effect of these compounds
Disciplines :
Veterinary medicine & animal health
Author, co-author :
Desmet, Christophe  ;  Université de Liège - ULiège > Département de sciences fonctionnelles > GIGA-R : Biochimie et biologie moléculaire
Warzée, Barbara ;  Université de Liège - ULiège > Département de sciences fonctionnelles > GIGA-R : Biochimie et biologie moléculaire
Gosset, Philippe
Melotte, Dorothee
Rongvaux, Anthony
Gillet, Laurent  ;  Université de Liège - ULiège > Immunologie et vaccinologie
Fievez, Laurence ;  Université de Liège - ULiège > Département de sciences fonctionnelles > GIGA-R : Biochimie et biologie moléculaire
Seumois, Gregory
Vanderplasschen, Alain ;  Université de Liège - ULiège > Immunologie et vaccinologie
Staels, Bart
Lekeux, Pierre ;  Université de Liège - ULiège > Département de sciences fonctionnelles > Physiologie - Doyen de la Faculté de Médecine vétérinaire
Bureau, Fabrice ;  Université de Liège - ULiège > Département de sciences fonctionnelles > GIGA-R : Biochimie et biologie moléculaire
Language :
English
Title :
Pro-inflammatory properties for thiazolidinediones.
Publication date :
2005
Journal title :
Biochemical Pharmacology
ISSN :
0006-2952
eISSN :
1873-2968
Publisher :
Elsevier Science, Oxford, United Kingdom
Volume :
69
Issue :
2
Pages :
255-265
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 27 March 2009

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