Abstract
Preeclampsia (PE) is an immensely prevalent condition that poses a significant risk to both maternal and fetal health. It is recognized as a primary cause of perinatal morbidity and mortality. Despite extensive research efforts, the precise impact of JDP2 on trophoblast invasion and migration in the context of preeclampsia remains unclear. The present study aimed to investigate the differential expression of JDP2 between normal control and preeclampsia placentas through the use of quantitative polymerase chain reaction (qPCR), western blotting, and immunostaining techniques. Furthermore, the effects of JDP2 overexpression and silencing on the migration, invasion, and wound healing capabilities of HTR-8/SVneo cells were evaluated. In addition, this study also examined the impact of JDP2 on epithelial-mesenchymal transition (EMT)-associated biomarkers and the Wnt/β-catenin pathway. In the present investigation, it was ascertained that Jun dimerization protein 2 (JDP2) exhibited a substantial decrease in expression levels in placentae afflicted with preeclampsia in comparison to those of normal placentae. Impairment in migration and invasion was noted upon JDP2 down-regulation, whereas augmentation of migration and invasion was observed upon JDP2 overexpression in HTR-8/SVneo cells. Subsequently, western blot and immunofluorescence assays were conducted, revealing marked alterations in EMT-associated biomarkers, such as E-cadherin, N-cadherin, and β-catenin, thereby indicating that JDP2 can facilitate cell invasion by modulating the EMT process in HTR-8/SVneo cells. Finally, activation of Wnt/β-catenin signaling was observed as a result of JDP2. After that, IWR-1, a Wnt inhibitor, was used in the recovery study. IWR-1 could inhibit the role of JDP2 in promoting migration and invasion in HTR-8/SVneo cells. Our findings elucidated the impact of JDP2 on trophoblast invasion and migration in preeclampsia by suppressing the EMT through the Wnt/β-catenin signaling pathway, thereby offering a potential prognostic and therapeutic biomarker for this condition.
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