Expression of IMP3 and LIN28A RNA-Binding Proteins in Placentas of Patients with Pre-Eclampsia with and Without Severe Features

Overview

Journal Biomedicines

Specialty Biomedical Engineering

Date 2024 Apr 27

PMID 38672233

Authors

Maja Barbaric

Katarina Vukojevic

Anita Kolobaric

Martina Orlovic Vlaho

Tanja Kresic

Violeta Soljic

Affiliations

Soon will be listed here.

Abstract

Background: this study aimed to determine the expression of RNA-binding oncofetal proteins IMP3 and LIN28A in extravillous (EVT) and villous trophoblast (VT) cells of placentas from pre-eclamptic (PE) pregnancies to better understand the pathogenesis of PE.

Methods: placental tissue of 10 patients with PE with severe features, 10 patients with PE without severe features and 20 age-matched healthy pregnancy controls were analyzed by immunohistochemistry, double immunofluorescence and qPCR.

Results: We found a decreased percentage of IMP3-positive EVT cells in PE with and without severe features compared to that of the healthy control ( < 0.001). IMP3 expression was significantly low in VT of PE placentas compared to that of the healthy control ( = 0.002). There was no significant difference in LIN28A expression between groups of PE and the control group. Additionally, we noticed the trend toward downregulation of IMP3 mRNA and LIN28A mRNA in severe PE compared to that of healthy controls.

Conclusions: We demonstrated that IMP3 expression is decreased in EVT and VT cells of placentas from pregnancies complicated with both PE with and without severe features. However, additional functional investigations are needed to clarify the role of IMP3 as a potential therapeutic target in the management of PE.

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