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Interleukin-6 (IL-6) and/or soluble IL-6 receptor down-regulation of human type II collagen gene expression in articular chondrocytes requires a decrease of Sp1.Sp3 ratio and of the binding activity of both factors to the COL2A1 promoter.
Porée B, Kypriotou M, Chadjichristos C, Beauchef G, Renard E, Legendre F, Melin M, Gueret S, Hartmann DJ, Malléin-Gerin F, Pujol JP, Boumediene K, Galéra P. Porée B, et al. Among authors: beauchef g. J Biol Chem. 2008 Feb 22;283(8):4850-65. doi: 10.1074/jbc.M706387200. Epub 2007 Dec 7. J Biol Chem. 2008. PMID: 18065760 Free article.
17Beta-oestradiol up-regulates the expression of a functional UDP-glucose dehydrogenase in articular chondrocytes: comparison with effects of cytokines and growth factors.
Maneix L, Beauchef G, Servent A, Wegrowski Y, Maquart FX, Boujrad N, Flouriot G, Pujol JP, Boumediene K, Galéra P, Moslemi S. Maneix L, et al. Among authors: beauchef g. Rheumatology (Oxford). 2008 Mar;47(3):281-8. doi: 10.1093/rheumatology/kem323. Epub 2008 Jan 31. Rheumatology (Oxford). 2008. PMID: 18238796
Human collagen Krox up-regulates type I collagen expression in normal and scleroderma fibroblasts through interaction with Sp1 and Sp3 transcription factors.
Kypriotou M, Beauchef G, Chadjichristos C, Widom R, Renard E, Jimenez SA, Korn J, Maquart FX, Oddos T, Von Stetten O, Pujol JP, Galéra P. Kypriotou M, et al. Among authors: beauchef g. J Biol Chem. 2007 Nov 2;282(44):32000-14. doi: 10.1074/jbc.M705197200. Epub 2007 Aug 13. J Biol Chem. 2007. PMID: 17698844 Free article.
Chondroitin sulphate decreases collagen synthesis in normal and scleroderma fibroblasts through a Smad-independent TGF-beta pathway--implication of C-Krox and Sp1.
Renard E, Chadjichristos C, Kypriotou M, Beauchef G, Bordat P, Dompmartin A, Widom RL, Boumediene K, Pujol JP, Galéra P. Renard E, et al. Among authors: beauchef g. J Cell Mol Med. 2008 Dec;12(6B):2836-47. doi: 10.1111/j.1582-4934.2008.00287.x. Epub 2008 Feb 24. J Cell Mol Med. 2008. PMID: 18298657 Free PMC article.
NF-κB accumulation associated with COL1A1 transactivators defects during chronological aging represses type I collagen expression through a -112/-61-bp region of the COL1A1 promoter in human skin fibroblasts.
Bigot N, Beauchef G, Hervieu M, Oddos T, Demoor M, Boumediene K, Galéra P. Bigot N, et al. Among authors: beauchef g. J Invest Dermatol. 2012 Oct;132(10):2360-2367. doi: 10.1038/jid.2012.164. Epub 2012 Jun 7. J Invest Dermatol. 2012. PMID: 22673730 Free article.
The p65 subunit of NF-κB inhibits COL1A1 gene transcription in human dermal and scleroderma fibroblasts through its recruitment on promoter by protein interaction with transcriptional activators (c-Krox, Sp1, and Sp3).
Beauchef G, Bigot N, Kypriotou M, Renard E, Porée B, Widom R, Dompmartin-Blanchere A, Oddos T, Maquart FX, Demoor M, Boumediene K, Galera P. Beauchef G, et al. J Biol Chem. 2012 Jan 27;287(5):3462-78. doi: 10.1074/jbc.M111.286443. Epub 2011 Dec 2. J Biol Chem. 2012. PMID: 22139845 Free PMC article.
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