1. Maternal alcohol consumption up to mouse organogenesis disrupts fetal-placental interface at mid-gestation associated with dysregulation of AQP3 immunoexpression.
- Author
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Barril, Camila, Gualdoni, Gisela Soledad, Damiano, Alicia E., and Cebral, Elisa
- Subjects
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ALCOHOL drinking , *MORPHOGENESIS , *PLACENTA , *DRINKING water , *GLYCOGEN - Abstract
Adequate trophoblast development during placentation involves the AQP3 regulation. The link between potential placental fetal-maternal interface abnormalities and AQP3 expression after perigestational alcohol intake was not explored yet. Female mice were treated (TF) with 10 % ethanol in drinking water before and up to day 10 of gestation, and control females (CF) with ethanol-free water. At gestational day 13, TFs showed increased fetal/placental weight ratio and reduced histological placental thickness compared to CFs. TF-placentas had disorganized fetal face layers, increased junctional zone (JZ), and decreased labyrinth (Lab). Concomitantly, immunoexpression of cleaved caspase-3 significantly increased in TF-JZ and Lab vs controls. Consistent with placental changes, AQP3 expression was higher in junctional trophoblast giant cells (TGCs), glycogen cells (GCs), spongiotrophoblasts (spg), and lab-syncytiotrophoblasts compared to CF-placentas. This study reveals, for the first time, that perigestational alcohol consumption up to organogenesis causes abnormal placental development associated with dysregulation of AQP3 expression. • Early perigestational alcohol consumption (PAC) leads to reduced placental growth at mid-gestation in mouse. • PAC reduces labyrinthine vascularization and increase junctional zone. • PAC induces abnormal histomorphological placenta. • PAC induce AQP3 dysregulation at placental fetal-maternal interface. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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