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Transcriptional regulation of dentin sialophosphoprotein by c-Jun/c-Fos / 华西口腔医学杂志
West China Journal of Stomatology ; (6): 67-69, 2006.
Article in Chinese | WPRIM | ID: wpr-289002
ABSTRACT
<p><b>OBJECTIVE</b>To investigate the role of c-Jun and c-Fos as transcriptional factors in regulation of dentin sialophosphoprotein (DSPP) gene by a promoter-luciferase reporter gene construct in odontoblast cell line MDPC-23.</p><p><b>METHODS</b>Endogenous c-Jun or c-Fos protein was determined by immunocytochemistry. The role of c-Jun or c-Fos in transcription of DSPP was investigated in co-transfection experiments using promoter-luciferase reporter gene construct containing the sequence between -791 bp and +54 bp of mouse DSPP gene.</p><p><b>RESULTS</b>c-Jun and c-Fos was expressed by MDPC-23 cells, and located in the nucleus of MDPC-23 cells. Overexpression of c-Jun or c-Fos significantly inhibited luciferase activity of DSPP promoter.</p><p><b>CONCLUSION</b>These findings suggest c-Jun and c-Fos down-regulated the transcription of DSPP gene as a transcriptional factor in odontoblast.</p>
Subject(s)
Full text: Available Index: WPRIM (Western Pacific) Main subject: Phosphoproteins / Sialoglycoproteins / Transfection / Cell Line / Gene Expression Regulation / Extracellular Matrix Proteins / Promoter Regions, Genetic / Odontoblasts Limits: Animals Language: Chinese Journal: West China Journal of Stomatology Year: 2006 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Main subject: Phosphoproteins / Sialoglycoproteins / Transfection / Cell Line / Gene Expression Regulation / Extracellular Matrix Proteins / Promoter Regions, Genetic / Odontoblasts Limits: Animals Language: Chinese Journal: West China Journal of Stomatology Year: 2006 Type: Article