Asian Science Citation Index is committed to provide an authoritative, trusted and significant information by the coverage of the most important and influential journals to meet the needs of the global scientific community.  
ASCI Database
308-Lasani Town,
Sargodha Road,
Faisalabad, Pakistan
Fax: +92-41-8815544
Contact Via Web
Suggest a Journal
Articles by T Kiyono
Total Records ( 1 ) for T Kiyono
  Y Shimizu , T Takeuchi , S Mita , K Mizuguchi , T Kiyono , M Inoue and S. Kyo

Dienogest is a specific progesterone receptor agonist with potent oral endometrial activity and is used in the treatment of endometriosis. In this study, we examined the direct effects of dienogest on the proliferation of human endometrial epithelial cells using an immortalized cell line. 5-Bromo-2'-deoxyuridine incorporation into the cells was inhibited by dienogest and by progesterone (P4) in dose-dependent fashion at concentrations of 10–8 mol/l or higher. To identify the target genes of dienogest and P4, we screened the expression of 84 genes related to cell cycle regulation by real-time polymerase chain reaction after 6 h of treatment at a concentration of 10–7 mol/l. Results showed that only cyclin D1 expression was significantly down-regulated, although expression of the other genes did not significantly change after dienogest or P4 treatment compared with the control. In a time-course study during the first 24 h after drug treatment, dienogest and P4 each produced a lasting decrease in the expression of cyclin D1 mRNA, followed by a decrease in cyclin E1 mRNA but not an increase in the expression of cell cycle inhibitor genes (p21, p27 and p53). These findings suggest that dienogest directly inhibits the proliferation of human endometrial epithelial cells with suppression of cyclin D1 gene expression.

Copyright   |   Desclaimer   |    Privacy Policy   |   Browsers   |   Accessibility