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Sakata R Minami S Sowa Y Yoshida M Tamaki T 《Biochemical and biophysical research communications》2004,315(4):959-963
In this study, we investigated osteoblastic differentiation by trichostatin A (TSA), a histone deacetylase inhibitor in mouse undifferentiated mesenchymal cell line. TSA increased the osteopontin (OPN) mRNA level and OPN protein. Deletion analysis of the promoter region revealed TSA-induced luciferase response was regulated by -75 to -65 of the OPN promoter. There was an AP1-binding sequence at the site of the OPN promoter. In an electrophoretic mobility shift assay, bands of the complexes were supershifted by addition of antibody to c-fos and phosphorylated c-jun. These data suggested that AP1 plays a crucial role in the TSA-induced OPN expression. 相似文献
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