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Downregulation of aromatase plays a dual role in preeclampsia
Molecular Human Reproduction ( IF 4 ) Pub Date : 2021-02-20 , DOI: 10.1093/molehr/gaab013
Dawei Zhu 1 , Jie Huang 1 , Xing Gu 1 , Li Li 1 , Jian Han 1
Affiliation  

Preeclampsia (PE) is a gestational disease, which seriously impairs maternal and infant health. However, the pathogenesis of PE remains unclear. The aromatase (CYP19A1) in placenta converts androgens from maternal and fetal adrenal glands to estrogen. Therefore, this change in the aromatase expression or function and the subsequent change of steroids in the placenta could be related to the pathophysiology of PE. In this study, we first analyzed the expression of CYP19A1 in clinical placental tissues as well as the level of sex hormones in corresponding serum samples. The results showed that the expression of aromatase in the placenta of PE patients was relatively low and accompanied by a sex hormone imbalance. Subsequently, animal experiments showed that ischemia and hypoxia lead to a low expression of CYP19A1, and that PE-like symptoms appear in pregnant mice following decreased or inhibited CYP19A1 expression. It was also found that, with the downregulation of CYP19A1 expression, the invasion and migration abilities of trophoblast cells were enhanced, which benefited placental implantation. However, alongside this, apoptosis and the inflammatory response were also increased, which was detrimental to placental development. Phosphoproteomic analyses revealed that the activation of the PI3K/AKT signaling pathway may play a key role in these processes. In conclusion, the downregulation of aromatase has a dual role in PE, among which the induction of the disease is the main role. Our study provides a potential novel method for the early prediction and treatment of PE.

中文翻译:

芳香酶的下调在先兆子痫中起双重作用

先兆子痫(PE)是一种严重影响母婴健康的妊娠疾病。然而,PE的发病机制仍不清楚。胎盘中的芳香酶 (CYP19A1) 将来自母体和胎儿肾上腺的雄激素转化为雌激素。因此,这种芳香酶表达或功能的变化以及随后胎盘中类固醇的变化可能与PE的病理生理学有关。在本研究中,我们首先分析了临床胎盘组织中 CYP19A1 的表达以及相应血清样本中性激素的水平。结果显示,PE患者胎盘中芳香化酶的表达较低,并伴有性激素失衡。随后,动物实验表明,缺血缺氧导致CYP19A1低表达,并且在 CYP19A1 表达降低或抑制后,PE 样症状出现在怀孕小鼠中。还发现,随着CYP19A1表达的下调,滋养层细胞的侵袭和迁移能力增强,有利于胎盘植入。然而,除此之外,细胞凋亡和炎症反应也增加,这不利于胎盘发育。磷酸蛋白质组学分析表明,PI3K/AKT 信号通路的激活可能在这些过程中起关键作用。综上所述,芳香化酶的下调在PE中具有双重作用,其中以诱发疾病为主要作用。我们的研究为PE的早期预测和治疗提供了一种潜在的新方法。随着CYP19A1表达的下调,滋养层细胞的侵袭和迁移能力增强,有利于胎盘植入。然而,除此之外,细胞凋亡和炎症反应也增加,这不利于胎盘发育。磷酸蛋白质组学分析表明,PI3K/AKT 信号通路的激活可能在这些过程中起关键作用。综上所述,芳香化酶的下调在PE中具有双重作用,其中以诱发疾病为主要作用。我们的研究为PE的早期预测和治疗提供了一种潜在的新方法。随着CYP19A1表达的下调,滋养层细胞的侵袭和迁移能力增强,有利于胎盘植入。然而,除此之外,细胞凋亡和炎症反应也增加,这不利于胎盘发育。磷酸蛋白质组学分析表明,PI3K/AKT 信号通路的激活可能在这些过程中起关键作用。综上所述,芳香化酶的下调在PE中具有双重作用,其中以诱发疾病为主要作用。我们的研究为PE的早期预测和治疗提供了一种潜在的新方法。细胞凋亡和炎症反应也增加,不利于胎盘发育。磷酸蛋白质组学分析表明,PI3K/AKT 信号通路的激活可能在这些过程中起关键作用。综上所述,芳香化酶的下调在PE中具有双重作用,其中以诱发疾病为主要作用。我们的研究为PE的早期预测和治疗提供了一种潜在的新方法。细胞凋亡和炎症反应也增加,不利于胎盘发育。磷酸蛋白质组学分析表明,PI3K/AKT 信号通路的激活可能在这些过程中起关键作用。综上所述,芳香化酶的下调在PE中具有双重作用,其中以诱发疾病为主要作用。我们的研究为PE的早期预测和治疗提供了一种潜在的新方法。
更新日期:2021-02-20
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