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Collagenolytic potential of rat liver myofibroblasts
A. Jiroutová, E. Peterová, L. Bittnerová, R. Slavkovský, P. Cevelová, M. Rezáčová, J. Cerman, S. Mičuda, J. Kanta
Jazyk angličtina Země Česko
Typ dokumentu časopisecké články, práce podpořená grantem
Free Medical Journals od 1998
ProQuest Central od 2005-01-01
Medline Complete (EBSCOhost) od 2006-01-01
Nursing & Allied Health Database (ProQuest) od 2005-01-01
Health & Medicine (ProQuest) od 2005-01-01
ROAD: Directory of Open Access Scholarly Resources od 1998
- MeSH
- aktiny metabolismus MeSH
- biologické markery metabolismus MeSH
- časové faktory MeSH
- cytokiny metabolismus MeSH
- cytoskelet enzymologie MeSH
- fibrin metabolismus MeSH
- imunohistochemie MeSH
- játra cytologie enzymologie MeSH
- kolagen typu I metabolismus MeSH
- kolagenasy genetika metabolismus MeSH
- krysa rodu rattus MeSH
- kultivované buňky MeSH
- messenger RNA metabolismus MeSH
- myofibroblasty enzymologie MeSH
- polymerázová řetězová reakce s reverzní transkripcí MeSH
- potkani Sprague-Dawley MeSH
- separace buněk metody MeSH
- tvar buňky MeSH
- western blotting MeSH
- zvířata MeSH
- Check Tag
- krysa rodu rattus MeSH
- mužské pohlaví MeSH
- zvířata MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
Rat liver myofibroblasts (MFB) were isolated by repeated passaging of nonparenchymal liver cell fraction. They were cultured on polystyrene Petri dishes, on fibrin or on type I collagen gels for 5 days. Quantitative RT-PCR, Western blotting, zymography and immunocytochemistry were used to study differences in cell morphology and protein expression. MFB were large and spread on plastic substrate, with prominent alpha-smooth muscle (alpha-SMA) fibres. They turned much smaller and elongated on collagen which was accompanied by the rearrangement of the cytoskeleton and a decrease in alpha-SMA and beta-actin content. Collagen gel induced the expression of a group of metalloproteinases (MMP-2, -3, -9, -13), on mRNA and protein level which resulted in the degradation of the gel. This response was accompanied by changes in the mRNA expression of cytokines of TGF-beta family, CTGF and interleukin-6, as well as of osteopontin and thrombospondin-2 that are involved in metalloproteinases (MMPs) regulation. The expression of MMPs substrates, collagen types I, IV and XII did not change or decreased. The effects of fibrin gels on MFB were milder than those of collagen. MFB assumed to deposit collagen and other ECM components in fibrotic liver, besides hepatic stellate cells, also possess a great collagenolytic potential.
Faculty of Medicine in Hradec Králové Hradec Králové
Faculty of Medicine in Hradec Králové Hradec Králové Czech Republic
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