Peroxynitrite-mediated matrix metalloproteinase-2 activation in human hepatic stellate cells. 2005

Kiyoshi Migita, and Yumi Maeda, and Seigo Abiru, and Atsumasa Komori, and Terufumi Yokoyama, and Yasushi Takii, and Minoru Nakamura, and Hiroshi Yatsuhashi, and Katsumi Eguchi, and Hiromi Ishibashi
Clinical Research Center, NHO Nagasaki Medical Center, Kubara 2-1001-1, Omura 856-8562, Japan. migita@nmc.hosp.go.jp

To investigate whether hepatic stellate cells (HSCs) alter their expression of MMPs after exposure to nitrogen oxide intermediate (NOI), a human hepatic stellate cell line, LI90 cells, was stimulated with an NO donor, SNAP, or a peroxynitrite donor, SIN-1, and the culture supernatants were analyzed by gelatin zymography or anti-MMPs immunoblot. Although SIN-1 did not enhance the secretions of MMP-1 and 13, SIN-1 induced the NF-kappaB activation, MT1-MMP expression and the secretion of activated MMP-2 in LI90 cells. These results suggest that peroxynitrite may contribute to the remodeling of the extracellular matrix in liver by activating pro-MMP-2.

UI MeSH Term Description Entries
D008666 Metalloendopeptidases ENDOPEPTIDASES which use a metal such as ZINC in the catalytic mechanism. Metallo-Endoproteinases,Metalloendopeptidase
D008981 Molsidomine A morpholinyl sydnone imine ethyl ester, having a nitrogen in place of the keto oxygen. It acts as NITRIC OXIDE DONORS and is a vasodilator that has been used in ANGINA PECTORIS. Morsydomine,Corpea,Corvaton,Duracoron,Fali-Cor,Korvatone,MTW-Molsidomin,Molsi 1A Pharma,Molsi-AZU,Molsi-Puren,Molsibeta,Molsicor,Molsidain,Molsidomin,Molsidomin Heumann,Molsidomin Stada,Molsidomin Von Ct,Molsidomin-Ratiopharm,Molsihexal,Molsiket,SIN-10,Sydnopharm,Fali Cor,Heumann, Molsidomin,MTW Molsidomin,Molsi AZU,Molsi Puren,Molsidomin Ratiopharm,SIN 10,SIN10,Von Ct, Molsidomin
D009566 Nitrates Inorganic or organic salts and esters of nitric acid. These compounds contain the NO3- radical. Nitrate
D010396 Penicillamine 3-Mercapto-D-valine. The most characteristic degradation product of the penicillin antibiotics. It is used as an antirheumatic and as a chelating agent in Wilson's disease. Dimethylcysteine,Mercaptovaline,beta,beta-Dimethylcysteine,Copper Penicillaminate,Cuprenil,Cuprimine,D-3-Mercaptovaline,D-Penicillamine,Metalcaptase,D 3 Mercaptovaline,D Penicillamine,Penicillaminate, Copper,beta,beta Dimethylcysteine
D010766 Phosphorylation The introduction of a phosphoryl group into a compound through the formation of an ester bond between the compound and a phosphorus moiety. Phosphorylations
D002460 Cell Line Established cell cultures that have the potential to propagate indefinitely. Cell Lines,Line, Cell,Lines, Cell
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
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000072000 NF-KappaB Inhibitor alpha An I-kappa B protein that inhibits the activity of dimeric NF-KAPPA B P50-REL complexes, sequesters transcription factor NF-kappaB as an inactive complex in the cytoplasm; and prevents NF-kappaB nuclear translocation and DNA binding. I Kappa B-alpha Protein,IKappaB-alpha,IKappaBalpha,Major Histocompatibility Complex Enhancer-Binding Protein MAD3,p40 Protein (IKappaB-alpha),I Kappa B alpha Protein,IKappaB alpha,Inhibitor alpha, NF-KappaB,Major Histocompatibility Complex Enhancer Binding Protein MAD3,NF KappaB Inhibitor alpha,alpha, NF-KappaB Inhibitor
D012333 RNA, Messenger RNA sequences that serve as templates for protein synthesis. Bacterial mRNAs are generally primary transcripts in that they do not require post-transcriptional processing. Eukaryotic mRNA is synthesized in the nucleus and must be exported to the cytoplasm for translation. Most eukaryotic mRNAs have a sequence of polyadenylic acid at the 3' end, referred to as the poly(A) tail. The function of this tail is not known for certain, but it may play a role in the export of mature mRNA from the nucleus as well as in helping stabilize some mRNA molecules by retarding their degradation in the cytoplasm. Messenger RNA,Messenger RNA, Polyadenylated,Poly(A) Tail,Poly(A)+ RNA,Poly(A)+ mRNA,RNA, Messenger, Polyadenylated,RNA, Polyadenylated,mRNA,mRNA, Non-Polyadenylated,mRNA, Polyadenylated,Non-Polyadenylated mRNA,Poly(A) RNA,Polyadenylated mRNA,Non Polyadenylated mRNA,Polyadenylated Messenger RNA,Polyadenylated RNA,RNA, Polyadenylated Messenger,mRNA, Non Polyadenylated

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