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Review
. 2021 Dec 24:9:782845.
doi: 10.3389/fbioe.2021.782845. eCollection 2021.

Preeclamptic Women Have Disrupted Placental microRNA Expression at the Time of Preeclampsia Diagnosis: Meta-Analysis

Andja Cirkovic  1 , Dejana Stanisavljevic  1 , Jelena Milin-Lazovic  1 , Nina Rajovic  1 , Vedrana Pavlovic  1 , Ognjen Milicevic  1 , Marko Savic  1 , Jelena Kostic Peric  2 , Natasa Aleksic  3 , Nikola Milic  4 , Tamara Stanisavljevic  4 , Zeljko Mikovic  5 , Vesna Garovic  6 , Natasa Milic  1   6
Affiliations
Review

Preeclamptic Women Have Disrupted Placental microRNA Expression at the Time of Preeclampsia Diagnosis: Meta-Analysis

Andja Cirkovic et al. Front Bioeng Biotechnol. .

Abstract

Introduction: Preeclampsia (PE) is a pregnancy-associated, multi-organ, life-threatening disease that appears after the 20th week of gestation. The aim of this study was to perform a systematic review and meta-analysis to determine whether women with PE have disrupted miRNA expression compared to women who do not have PE. Methods: We conducted a systematic review and meta-analysis of studies that reported miRNAs expression levels in placenta or peripheral blood of pregnant women with vs. without PE. Studies published before October 29, 2021 were identified through PubMed, EMBASE and Web of Science. Two reviewers used predefined forms and protocols to evaluate independently the eligibility of studies based on titles and abstracts and to perform full-text screening, data abstraction and quality assessment. Standardized mean difference (SMD) was used as a measure of effect size. Results: 229 publications were included in the systematic review and 53 in the meta-analysis. The expression levels in placenta were significantly higher in women with PE compared to women without PE for miRNA-16 (SMD = 1.51,95%CI = 0.55-2.46), miRNA-20b (SMD = 0.89, 95%CI = 0.33-1.45), miRNA-23a (SMD = 2.02, 95%CI = 1.25-2.78), miRNA-29b (SMD = 1.37, 95%CI = 0.36-2.37), miRNA-155 (SMD = 2.99, 95%CI = 0.83-5.14) and miRNA-210 (SMD = 1.63, 95%CI = 0.69-2.58), and significantly lower for miRNA-376c (SMD = -4.86, 95%CI = -9.51 to -0.20). An increased level of miRNK-155 expression was found in peripheral blood of women with PE (SMD = 2.06, 95%CI = 0.35-3.76), while the expression level of miRNA-16 was significantly lower in peripheral blood of PE women (SMD = -0.47, 95%CI = -0.91 to -0.03). The functional roles of the presented miRNAs include control of trophoblast proliferation, migration, invasion, apoptosis, differentiation, cellular metabolism and angiogenesis. Conclusion: miRNAs play an important role in the pathophysiology of PE. The identification of differentially expressed miRNAs in maternal blood creates an opportunity to define an easily accessible biomarker of PE.

Keywords: epigenetics; meta-analysis; miRNA; pathophysiology; preeclampsia.

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Conflict of interest statement

The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.

Figures

FIGURE 1
FIGURE 1
Flow diagram.
FIGURE 2
FIGURE 2
Meta-analysis of differences in expression level of miRNA-16 in placenta between women with vs. without preeclampsia.
FIGURE 3
FIGURE 3
Meta-analysis of differences in expression level of miRNA-20b in placenta between women with vs. without preeclampsia.
FIGURE 4
FIGURE 4
Meta-analysis of differences in expression level of miRNA-23a in placenta between women with vs. without preeclampsia.
FIGURE 5
FIGURE 5
Meta-analysis of differences in expression level of miRNA-29b in placenta between women with vs. without preeclampsia.
FIGURE 6
FIGURE 6
Meta-analysis of differences in expression level of miRNA-155 in placenta between women with vs. without preeclampsia.
FIGURE 7
FIGURE 7
Meta-analysis of differences in expression level of miRNA-210 in placenta between women with vs. without preeclampsia.
FIGURE 8
FIGURE 8
Meta-analysis of differences in expression level of miRNA-376c in placenta between women with vs. without preeclampsia.
FIGURE 9
FIGURE 9
Meta-analysis of differences in expression level of miRNA-155 in peripheral blood between women with vs. without preeclampsia.
FIGURE 10
FIGURE 10
Meta-analysis of differences in expression level of miRNA-16 in peripheral blood between women with vs. without preeclampsia.
See this image and copyright information in PMC

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