This study investigated the effect of epigenetic modification of maspin on extravillous tro-phoblastic function. The mRNA expression of maspin in placentae from normotensive and preeclamptic pregnant women was detecte...This study investigated the effect of epigenetic modification of maspin on extravillous tro-phoblastic function. The mRNA expression of maspin in placentae from normotensive and preeclamptic pregnant women was detected by RT-PCR. TEV-1 cells, a human first-trimester extravillous trophoblast cell line, were cultured and treated with CoCl2 (300 μmol/L) to induce chemical hypoxia and with 5-aza (500 nmol/L) to induce demethylation. The mRNA expression of maspin in TEV-1 cells subjected to different treatments was determined by RT-PCR, and the proliferative and migratory abilities of TEV-1 cells were assessed by cell counting kit-8 (CCK-8) and Transwell assays. Our results showed that the maspin mRNA expression level in placentae from preeclamptic women was much higher than that from normotensive women. CoCl2 or 5-aza could up-regulate the mRNA expression of maspin and significantly suppress the proliferation and migration of TEV-1 cells. It was concluded that the epigenetic modification in promoter region of maspin contributes to incomplete trophoblast invasion, which offers a novel approach for predicting and treating placental dysfunction.展开更多
目的探讨荧光原位杂交(fluorescence in situ hybridization,FISH)技术在产前诊断中应用价值。方法对2009年11月至2012年8月在华中科技大学同济医学院附属同济医院进行产前诊断的1148例孕妇,利用FISH技术对羊水间期核细胞进行染色体数...目的探讨荧光原位杂交(fluorescence in situ hybridization,FISH)技术在产前诊断中应用价值。方法对2009年11月至2012年8月在华中科技大学同济医学院附属同济医院进行产前诊断的1148例孕妇,利用FISH技术对羊水间期核细胞进行染色体数目检测。结果 1148例孕妇中确诊胎儿为21-三体综合征28例;18-三体综合征7例;13-三体综合征2例;45,XO(特纳综合征)1例;47,XXY1例;47,XYY1例;共检测出染色体数目异常患儿40例。结论 FISH技术应用于产前诊断染色体数目异常,成功率及准确率较高,结果可靠。展开更多
基金supported by a grant from the National Natural Science Foundation of China(No.81200451)
文摘This study investigated the effect of epigenetic modification of maspin on extravillous tro-phoblastic function. The mRNA expression of maspin in placentae from normotensive and preeclamptic pregnant women was detected by RT-PCR. TEV-1 cells, a human first-trimester extravillous trophoblast cell line, were cultured and treated with CoCl2 (300 μmol/L) to induce chemical hypoxia and with 5-aza (500 nmol/L) to induce demethylation. The mRNA expression of maspin in TEV-1 cells subjected to different treatments was determined by RT-PCR, and the proliferative and migratory abilities of TEV-1 cells were assessed by cell counting kit-8 (CCK-8) and Transwell assays. Our results showed that the maspin mRNA expression level in placentae from preeclamptic women was much higher than that from normotensive women. CoCl2 or 5-aza could up-regulate the mRNA expression of maspin and significantly suppress the proliferation and migration of TEV-1 cells. It was concluded that the epigenetic modification in promoter region of maspin contributes to incomplete trophoblast invasion, which offers a novel approach for predicting and treating placental dysfunction.
