Back to Search
Start Over
AOPPs induce HTR-8/SVneo cell apoptosis by downregulating the Nrf-2/ARE/HO-1 anti-oxidative pathway: Potential implications for preeclampsia.
- Source :
- Placenta; Sep2021, Vol. 112, p1-8, 8p
- Publication Year :
- 2021
-
Abstract
- <bold>Introduction: </bold>Advanced oxidation protein products (AOPPs), which are novel markers of oxidant-mediated protein damage, are prevalent in numerous diseases. We previously demonstrated that AOPPs act as a new class of pathogenic mediators in preeclampsia by causing trophoblast damage and dysfunction. Herein, we explored whether AOPPs could regulate the Nrf-2/ARE/HO-1 anti-oxidative pathway to facilitate the progression of preeclampsia.<bold>Methods: </bold>To investigate the pathophysiology of preeclampsia, we evaluated the effects of AOPPs on trophoblast damage, apoptotic proteins, and Nrf-2/ARE/HO-1 anti-oxidative pathway expression, as well as their underlying mechanisms.<bold>Results: </bold>AOPPs directly increased the expression of apoptotic proteins and significantly inhibited the expression of Nrf-2/ARE/HO-1 pathway in trophoblasts. Nrf-2 silencing aggravated the AOPPs-induced cell apoptosis in vitro by activating p53 and caspase cascade, whereas Nrf-2 overexpression had the opposite effect. Moreover, Nrf-2 exerted cytoprotective effects by increasing HO-1.<bold>Discussion: </bold>These findings suggest that AOPPs induce trophoblast apoptosis by triggering p53 and caspase activation via inhibition of the Nrf-2/ARE/HO-1 anti-oxidative pathway. Hence, Nrf-2/ARE/HO-1 pathway activation plays a protective role in AOPPs-induced cell apoptosis; thus, holding potential as a therapeutic target against preeclampsia. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 01434004
- Volume :
- 112
- Database :
- Supplemental Index
- Journal :
- Placenta
- Publication Type :
- Academic Journal
- Accession number :
- 152100520
- Full Text :
- https://doi.org/10.1016/j.placenta.2021.06.008