Article (Scientific journals)
Effects of rhein on human articular chondrocytes in alginate beads
Sanchez, Christelle; Mathy-Hartert, Marianne; Deberg, Michelle et al.
2003In Biochemical Pharmacology, 65 (3), p. 377-388
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Keywords :
cartilage; chondrocytes; cytokines; osteoarthritis; rhein
Abstract :
[en] This study was designed to investigate the effects of them, the active metabolite of diacerhein, on the metabolic functions of human chondrocytes cultured in alginate beads. Enzymatically isolated ostcoarthritic (OA) chondrocytes were cultured in alginate beads in a well-defined culture medium for 12 days. Rhein was tested in a range of concentrations comprised between 10(-7) and 4 x 10(-5) M, in the presence or absence of 10(-10) M IL-1beta. Interleukin (IL)-6 and -8, macrophage inflammatory protein (MIP-1beta), stromelysin-1 (MMP-3), aggrecan (AGG), tissue inhibitor of metalloproteinases-1 (TIMP-1), prostaglandin E-2 (PGE(2)) and nitric oxide (NO) productions were assayed. Cyclooxygenase-2 (COX-2) and inducible NO synthase (iNOS) mRNA steady-state levels were also quantified. In the basal condition, 10(-5) M them increased by 46.5% the production of AGG, decreased by 17-30% the production of IL-6, MMP-3, NO and MIP-1beta but enhanced by 50% the production of PGE2(.) IL-1beta increased IL-6, IL-8, MIP-1beta, NO, PGE(2) and MMP-3 productions, but inhibited AGG and TIMP-1 synthesis. Rhein partially reversed the effect of IL-1beta on TIMP-1 and NO production, had no effect on AGG, IL-6 and MIP-1P production, but upregulated the IL-1beta stimulated PGE(2) production. The COX-2 and iNOS mRNA levels and IL-8 production were not modified by rhein. Overall, these results contribute to explain the clinical efficiency of rhein and give new information on its mechanisms of action. (C) 2002 Elsevier Science Inc. All rights reserved.
Disciplines :
Pharmacy, pharmacology & toxicology
Author, co-author :
Sanchez, Christelle  ;  Université de Liège - ULiège > Département des sciences de la motricité > Unité de recherche sur l'os et le cartillage (U.R.O.C.)
Mathy-Hartert, Marianne;  Université de Liège - ULiège > Département des sciences de la motricité > Unité de recherche sur l'os et le cartillage (U.R.O.C.)
Deberg, Michelle ;  Université de Liège - ULiège > Département des sciences de la motricité > Unité de recherche sur l'os et le cartillage (U.R.O.C.)
Ficheux, Hervé;  laboratoires Negma, France
Reginster, Jean-Yves  ;  Université de Liège - ULiège > Département des sciences de la santé publique > Epidémiologie et santé publique
Henrotin, Yves  ;  Université de Liège - ULiège > Département des sciences de la motricité > Unité de recherche sur l'os et le cartillage (U.R.O.C.)
Language :
English
Title :
Effects of rhein on human articular chondrocytes in alginate beads
Alternative titles :
[fr] Effets de la rhéine sur les chondrocytes articulaires humains
Publication date :
01 February 2003
Journal title :
Biochemical Pharmacology
ISSN :
0006-2952
eISSN :
1873-2968
Publisher :
Pergamon-Elsevier Science Ltd, Oxford, United Kingdom
Volume :
65
Issue :
3
Pages :
377-388
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 28 November 2008

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