Meakin Cassandra, Barrett Emily S, Aleksunes Lauren M
Department of Pharmacology and Toxicology, Rutgers University, Piscataway, NJ, USA.
Environmental and Occupational Health Sciences Institute, Rutgers University, Piscataway, NJ, USA; Department of Biostatistics and Epidemiology, Rutgers School of Public Health, Piscataway, NJ, USA.
Reprod Toxicol. 2022 Jan;107:60-68. doi: 10.1016/j.reprotox.2021.11.008. Epub 2021 Nov 25.
During pregnancy, the migration and invasion of extravillous trophoblasts (EVTs) into the maternal uterus is essential for proper development of the placenta and fetus. During the first trimester, EVTs engraft and remodel maternal spiral arteries allowing for efficient blood flow and the transfer of essential nutrients and oxygen to the fetus. Aberrant migration of EVTs leading to either shallow or deep invasion into the uterus has been implicated in a number of gestational pathologies including preeclampsia, fetal growth restriction, and placenta accreta spectrum. The migration and invasion of EVTs is well-coordinated to ensure proper placentation. However, recent data point to the ability of xenobiotics to disrupt EVT migration. These xenobiotics include heavy metals, endocrine disrupting chemicals, and organic contaminants and have often been associated with adverse pregnancy outcomes. In most instances, xenobiotics appear to reduce EVT migration; however, there are select examples of enhanced motility after chemical exposure. In this review, we provide an overview of the 1) current experimental approaches used to evaluate EVT migration and invasion in vitro, 2) ability of environmental chemicals and pharmaceuticals to enhance or retard EVT motility, and 3) signaling pathways responsible for altered EVT migration that are sensitive to disruption by xenobiotics.
在孕期,绒毛外滋养层细胞(EVT)向母体子宫的迁移和侵入对于胎盘和胎儿的正常发育至关重要。在孕早期,EVT植入并重塑母体螺旋动脉,以实现高效的血流以及向胎儿输送必需的营养物质和氧气。EVT异常迁移导致其向子宫浅部或深部侵入,这与多种妊娠病理情况有关,包括子痫前期、胎儿生长受限和胎盘植入谱系疾病。EVT的迁移和侵入受到良好协调,以确保正常的胎盘形成。然而,最近的数据表明,外源性物质有能力干扰EVT迁移。这些外源性物质包括重金属、内分泌干扰化学物质和有机污染物,它们常常与不良妊娠结局相关。在大多数情况下,外源性物质似乎会减少EVT迁移;不过,也有化学物质暴露后EVT运动性增强的特定例子。在本综述中,我们概述了:1)目前用于体外评估EVT迁移和侵入的实验方法;2)环境化学物质和药物增强或阻碍EVT运动性的能力;3)负责改变EVT迁移且对外源性物质干扰敏感的信号通路。