Expression of miR-574 in placental tissue of preeclampsia and its significance in the pathogenesis of preeclampsia
- VernacularTitle:子痫前期胎盘组织中miR-574的表达及其在子痫前期发病机制中的意义
- Author:
Ying YANG
1
;
Yan-ju ZHU
;
Yan-ling GUO
Author Information
- Publication Type:Journal Article
- Keywords: miRNA-574; preeclampsia; cell biological function; epithelial mesenchymal transition
- From: Journal of Regional Anatomy and Operative Surgery 2025;34(4):300-304
- CountryChina
- Language:Chinese
- Abstract: Objective To investigate the expression of microRNA-574(miR-574)in placental tissue of pregnant women with preeclampsia(PE)and its significance in the pathogenesis of preeclampsia.Methods The placental tissue samples of 35 PE pregnant women(the PE group)and 20 normal pregnant women(the normal group)admitted to the Department of Obstetrics in Chengde Maternal and Child Health Care Hospital from March 2021 to June 2023 were collected,and the expression of miR-574 in the different placental tissues was detected by qRT-PCR.The trophoblast cells HTR8/Svneo were cultured in vitro and divided into the overexpression group,inhibition group and control group,which were transfected with miR-574 mimics,miR-574 inhibitor and miR-NC,respectively.The cell proliferation ability of each group was detected by CCK-8 assay;The cell apoptosis rate of each group was detected by flow cytometry;The cell invasion ability of each group was detected by transwell chamber experiment;The expression of EMT related proteins of cells in each group was detected by western blot.Results Compared with the normal group,the miR-574 expression of placental tissue in the PE group was significantly increased(P<0.05),and the expression of miR-574 in pregnant women with severe PE was significantly higher than that in pregnant women with mild PE(P<0.05).Compared with the control group,the expression of miR-574 of cells increased(P<0.05),the cell proliferation ability decreased(P<0.05),the cell apoptosis rate increased(P<0.05),the number of invasive cells reduced(P<0.05),the expression of E-cadherin protein increased(P<0.05),and the expression of MMP9 and N-cadherin proteins decreased in the overexpression group(P<0.05).Compared with the control group,the expression of miR-574 of cells decreased(P<0.05),the cell proliferation ability increased(P<0.05),the cell apoptosis rate reduced(P<0.05),the number of invasive cells increased(P<0.05),the expression of E-cadherin protein decreased(P<0.05),and the expression of MMP9 and N-cadherin proteins increased in the inhibition group(P<0.05).Conclusion The expression of miR-574 in the placental tissue of PE patients is increased,and it can participate in the pathogenesis of PE by influencing proliferation,apoptosis,invasion and EMT of trophoblast cell.
