| Literature DB >> 2592421 |
A Oldberg1, B Jirskog-Hed, S Axelsson, D Heinegård.
Abstract
In this report we demonstrate an increase in the steady-state level of bone sialoprotein (BSP) mRNA in rat calvaria and a rat osteosarcoma cell line (ROS 17/2.8) after treatment with the synthetic glucocorticoid, dexamethasone. In contrast, 1.25-dihydroxyvitamin D3 reduced the amount of BSP mRNA in calvaria and inhibited the dexamethasone induction in ROS 17/2.8 cells. The increase in BSP mRNA is most likely due to an increase in the transcriptional rate. The stability of mRNA was unchanged after dexamethasone treatment with a half-life of approximately 5 h. Nuclear transcription experiments with nuclei isolated from ROS 17/2.8 cells showed an increased BSP mRNA synthesis in cells treated with dexamethasone.Entities:
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Year: 1989 PMID: 2592421 PMCID: PMC2115918 DOI: 10.1083/jcb.109.6.3183
Source DB: PubMed Journal: J Cell Biol ISSN: 0021-9525 Impact factor: 10.539