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  • Title: Effects of E-cadherin on mouse embryo implantation and expression of matrix metalloproteinase-2 and -9.
    Author: Liu G, Zhang X, Lin H, Wang H, Li Q, Ni J, Zhu C.
    Journal: Biochem Biophys Res Commun; 2006 May 12; 343(3):832-8. PubMed ID: 16564031.
    Abstract:
    E-cadherin is a cell surface glycoprotein, which is responsible for adhesion between epithelial cells. Whether it is involved in embryo implantation is still unknown. In a mouse intrauterine horn injection model, one uterine horn in each mouse was injected with different doses of E-cadherin antibody on day 3 of pregnancy. The results showed that embryo implantation was significantly inhibited in the mice injected with 3 microg E-cadherin antibody. The mouse uteri in this group were collected on days 5, 6, and 7 of pregnancy and expressions of MMP-2 and -9 were studied. In situ hybridization and RT-PCR results showed that the expression of MMP-2 and -9 mRNAs in uteri of E-cadherin antibody treated group was increased on days 5-7. The results of gelatin zymography of MMPs showed that the activities of pro-MMP-2, MMP-2, and pro-MMP-9 were increased significantly on days 5 and 6, and pro-MMP-9 activity was increased on day 7. The present study suggested that E-cadherin was involved in embryo implantation through decreasing the expressions and activities of MMP-2 and -9.
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