Laboratory Animal and Comparative Medicine ›› 2017, Vol. 37 ›› Issue (5): 399-404.DOI: 10.3969/j.issn.1674-5817.2017.05.011

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Effects of Mifepristone on Expression of Integrin αvβ3 and Vascular Endothelial Growth Factor in Wistar Rats at Implantation Window Phase

TANG Bin, LI Fu-rong, FU Xing-Lu, JIANG Guo-Jian, ZHAO Yong, ZHANG Wei   

  1. Laboratory Animal Center of Sun Yat-sen University, Guangzhou 510080, China
  • Received:2017-04-20 Online:2017-10-25 Published:2017-10-25

Abstract: Objective To investigate the effect of mifepristone on the expression of integrin αvβ3 and vascular endothelial growth factor (VEGF) gene, and the effect on ultrastructure of endometrium at implantation window phase in Wistar rats. Methods Thirty-six Wistar rats were divided to four groups, the rats of two experimental groups were orally administered with 5 mg/kg, 10 mg/kg of mifepristone respectively one day after conception. The endometrium was collected 4.5 days after mate both in two experimental groups and two control groups. Ultrastructure of the endometrium were observed by transmission electron microscope, and the expression of integrin αvβ3 and VEGF gene in endometrial were tested by RT-PCR method, meantime, the contents of estrogen and progesterone in serum were detected by ELISA technique. Results Mifepristone can inhibits the expression of integrin αvβ3, VEGF and progesterone, and increase the content of estrogen (P>0.05). The down-regulation of the three factors and the changes of the ultrastructure of endometrium has obvious dose-response relationship with mifepristone. Conclusion The expression of integrin αvβ3 and VEGF gene were decreased differently by mifepristone as well as the content of progesterone, eventually it will affect the ultrastructure of endometrium.

Key words: Mifepristone, Integrin αvβ3, Vascular endothelial growth factor (VEGF), Estrogen

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