ADAMTS9 activation by interleukin 1 beta via NFATc1 in OUMS-27 chondrosarcoma cells and in human chondrocytes.
In: Molecular and cellular biochemistry, Jg. 323 (2009-03-01), Heft 1-2, S. 69-79
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Zugriff:
ADAMTS9 is a member of the disintegrin and metalloproteinase with thrombospondin motifs (ADAMTS) genes, with aggrecan-degrading activity. It has also been characterized to be reactive and highly activated ADAMTS by IL-1 beta in both chondrosarcoma cells and human chondrocytes (Demircan et al. Arthritis Rheum 52:1451-1460, 2005). In order to understand the regulation of ADAMTS9 gene expression a functional 3.0 kb human ADAMTS9 promoter has been cloned and characterized. A sequence analysis of the promoter revealed the presence of putative binding sites for Nuclear Factor of Activated T cells (NFAT), which is commonly found in the ADAMTS4 and ADAMTS5 promoters. NFATc1 was up-regulated in an activated form by IL-1 beta in human chondrocytes. The IL-1 beta inducible ADAMTS9 expression was inhibited by NFAT inhibitors, FK506 and 11Arg (11R)-VIVIT. Furthermore, direct binding of NFATc1 on distal and proximal promoters of ADAMTS9 was demonstrated by a chromatin immunoprecipitation assay. Promoter-reporter assays supported those results. These findings may provide a better understanding of the regulation of ADAMTS9 expression induced by inflammatory cytokines.
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ADAMTS9 activation by interleukin 1 beta via NFATc1 in OUMS-27 chondrosarcoma cells and in human chondrocytes.
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Autor/in / Beteiligte Person: | Yaykasli, KO ; Oohashi, T ; Hirohata, S ; Hatipoglu, OF ; Inagawa, K ; Demircan, K ; Ninomiya, Y |
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Zeitschrift: | Molecular and cellular biochemistry, Jg. 323 (2009-03-01), Heft 1-2, S. 69-79 |
Veröffentlichung: | New York : Springer ; <i>Original Publication</i>: The Hague, Dr. W. Junk B. V. Publishers., 2009 |
Medientyp: | academicJournal |
ISSN: | 1573-4919 (electronic) |
DOI: | 10.1007/s11010-008-9965-4 |
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