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Inhibition of interleukin-1-stimulated MAP kinases, activating protein-1 (AP-1) and nuclear factor kappa B (NF-kappa B) transcription factors down-regulates matrix metalloproteinase gene expression in articular chondrocytes. 2002

Abdelhamid Liacini, and Judith Sylvester, and Wen Qing Li, and Muhammad Zafarullah
Département de Médecine and Centre de Recherche du Centre Hospitalier de l'Université de Montréal, Hôpital Notre-Dame du CHUM, 1560 Sherbrooke est, Montreal, Québec, Canada H2L 4M1.

Interleukin-1 (IL-1), the main cytokine instigator of cartilage degeneration in arthritis, induces matrix metalloproteinase-3 (MMP-3) and MMP-13 RNA and protein in chondrocytes. The molecular mechanisms of this induction were investigated with specific inhibitors of mitogen-activated protein kinase (MAPK) signaling pathways and activating protein (AP-1) and nuclear factor kappa B (NF-kappa B) transcription factors. IL-1 rapidly induced the activation of extracellular-signal regulated kinase (ERK), protein 38 (p38) and c-Jun N-terminal kinase (JNK) MAPKs in the first-passage human femoral head OA chondrocytes. The ERK-MAPK pathway inhibitor, PD98059, attained 46-53% (MMP-3) and 59-66% (MMP-13) inhibition of RNA induction in human OA and 47-52% (MMP-3) and 69-73% (MMP-13) inhibition in bovine chondrocytes. U0126 conferred 37-77% (MMP-3) and 43-73% (MMP-13) suppression in human and 77-100% (MMP-3) and 96-100% (MMP-13) in bovine chondrocytes. P38 and JNK inhibitor, SB203580 caused 35-37% reduction of MMP-3 and MMP-13 RNA in human and 36-46% (MMP-3) and 60-88% (MMP-13) in bovine chondrocytes. Inhibitor of JNK, AP-1 and NF-kappa B, curcumin, achieved 48-99% suppression of MMP-3 and 45-97% of MMP-13 in human and 8-100% (MMP-3) and 32-100% (MMP-13) in bovine chondrocytes. NF-kappaB inhibitor, pyrrolidine dithiocarbamate yielded 83-84% reduction of MMP-3 and 38-55% for MMP-13 in human chondrocytes. In bovine chondrocytes, the induction decreased by 54-64% for MMP-3 and 74-93% for MMP-13 RNA. These results suggest the involvement of MAPKs, AP-1 and NF-kappa B transcription factors in the IL-1 induction of MMPs in chondrocytes. Inhibition of IL-1 signal transduction by these agents could be useful for reducing cartilage resorption by MMPs in arthritis.

UI MeSH Term Description Entries
D007093 Imidazoles Compounds containing 1,3-diazole, a five membered aromatic ring containing two nitrogen atoms separated by one of the carbons. Chemically reduced ones include IMIDAZOLINES and IMIDAZOLIDINES. Distinguish from 1,2-diazole (PYRAZOLES).
D007375 Interleukin-1 A soluble factor produced by MONOCYTES; MACROPHAGES, and other cells which activates T-lymphocytes and potentiates their response to mitogens or antigens. Interleukin-1 is a general term refers to either of the two distinct proteins, INTERLEUKIN-1ALPHA and INTERLEUKIN-1BETA. The biological effects of IL-1 include the ability to replace macrophage requirements for T-cell activation. IL-1,Lymphocyte-Activating Factor,Epidermal Cell Derived Thymocyte-Activating Factor,Interleukin I,Macrophage Cell Factor,T Helper Factor,Epidermal Cell Derived Thymocyte Activating Factor,Interleukin 1,Lymphocyte Activating Factor
D011725 Pyridines Compounds with a six membered aromatic ring containing NITROGEN. The saturated version is PIPERIDINES.
D011759 Pyrrolidines Compounds also known as tetrahydropyridines with general molecular formula (CH2)4NH. Tetrahydropyridine,Tetrahydropyridines
D002358 Cartilage, Articular A protective layer of firm, flexible cartilage over the articulating ends of bones. It provides a smooth surface for joint movement, protecting the ends of long bones from wear at points of contact. Articular Cartilage,Articular Cartilages,Cartilages, Articular
D002417 Cattle Domesticated bovine animals of the genus Bos, usually kept on a farm or ranch and used for the production of meat or dairy products or for heavy labor. Beef Cow,Bos grunniens,Bos indicus,Bos indicus Cattle,Bos taurus,Cow,Cow, Domestic,Dairy Cow,Holstein Cow,Indicine Cattle,Taurine Cattle,Taurus Cattle,Yak,Zebu,Beef Cows,Bos indicus Cattles,Cattle, Bos indicus,Cattle, Indicine,Cattle, Taurine,Cattle, Taurus,Cattles, Bos indicus,Cattles, Indicine,Cattles, Taurine,Cattles, Taurus,Cow, Beef,Cow, Dairy,Cow, Holstein,Cows,Dairy Cows,Domestic Cow,Domestic Cows,Indicine Cattles,Taurine Cattles,Taurus Cattles,Yaks,Zebus
D002478 Cells, Cultured Cells propagated in vitro in special media conducive to their growth. Cultured cells are used to study developmental, morphologic, metabolic, physiologic, and genetic processes, among others. Cultured Cells,Cell, Cultured,Cultured Cell
D003474 Curcumin A yellow-orange dye obtained from tumeric, the powdered root of CURCUMA longa. It is used in the preparation of curcuma paper and the detection of boron. Curcumin appears to possess a spectrum of pharmacological properties, due primarily to its inhibitory effects on metabolic enzymes. 1,6-Heptadiene-3,5-dione, 1,7-bis(4-hydroxy-3-methoxyphenyl)-, (E,E)-,Curcumin Phytosome,Diferuloylmethane,Mervia,Turmeric Yellow,Phytosome, Curcumin,Yellow, Turmeric
D004789 Enzyme Activation Conversion of an inactive form of an enzyme to one possessing metabolic activity. It includes 1, activation by ions (activators); 2, activation by cofactors (coenzymes); and 3, conversion of an enzyme precursor (proenzyme or zymogen) to an active enzyme. Activation, Enzyme,Activations, Enzyme,Enzyme Activations
D004791 Enzyme Inhibitors Compounds or agents that combine with an enzyme in such a manner as to prevent the normal substrate-enzyme combination and the catalytic reaction. Enzyme Inhibitor,Inhibitor, Enzyme,Inhibitors, Enzyme

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