Placental exosomes profile in maternal and fetal circulation in intrauterine growth restriction - Liquid biopsies to monitoring fetal growth

Placenta-derived exosomes may represent an additional pathway by which the placenta communicates with the maternal system to induce maternal vascular adaptations to pregnancy and it may be affected during Fetal growth restriction (FGR). The objective of this study was to quantify the concentration o...

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Vydané v:Placenta (Eastbourne) Ročník 64; s. 34 - 43
Hlavní autori: Miranda, Jezid, Paules, Cristina, Nair, Soumyalekshmi, Lai, Andrew, Palma, Carlos, Scholz-Romero, Katherin, Rice, Gregory E., Gratacos, Eduard, Crispi, Fatima, Salomon, Carlos
Médium: Journal Article
Jazyk:English
Vydavateľské údaje: Netherlands Elsevier Ltd 01.04.2018
Elsevier
Predmet:
Embaràs
Extracellular vesicles
Fetal growth retardation
Intrauterine growth
Non-invasive diagnosis
Placenta
Pregnancy
Retard del creixement intrauterí
Pregnancy
Extracellular vesicles
Non-invasive diagnosis
Intrauterine growth
Placenta
ISSN:0143-4004, 1532-3102, 1532-3102
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Shrnutí:Placenta-derived exosomes may represent an additional pathway by which the placenta communicates with the maternal system to induce maternal vascular adaptations to pregnancy and it may be affected during Fetal growth restriction (FGR). The objective of this study was to quantify the concentration of total and placenta-derived exosomes in maternal and fetal circulation in small fetuses classified as FGR or small for gestational age (SGA). Prospective cohort study in singleton term gestations including 10 normally grown fetuses and 20 small fetuses, sub-classified into SGA and FGR accordingly to birth weight (BW) percentile and fetoplacental Doppler. Exosomes were isolated from maternal and fetal plasma and characterized by morphology, enrichment of exosomal proteins, and size distribution by electron microscopy, western blot, and nanoparticle tracking analysis, respectively. Total and specific placenta-derived exosomes were determined using quantum dots coupled with CD63+ve and placental-type alkaline phosphatase (PLAP)+ve antibodies, respectively. Maternal concentrations of CD63+ve and PLAP+ve exosomes were similar between the groups (all p > 0.05). However, there was a significant positive correlation between the ratio of placental-derived to total exosomes (PLAP+ve ratio) and BW percentile, [rho = 0.77 (95% CI: 0.57 to 0.89); p = 0.0001]. The contribution of placental exosomes to the total exosome concentration in maternal and fetal circulation showed a significant decrease among cases, with lower PLAP+ve ratios in FGR compared to controls and SGA cases. Quantification of placental exosomes in maternal plasma reflects fetal growth and it may be a useful indicator of placental function. •The maternal PLAP+ve ratio is a marker of fetal growth and placental function.•Maternal PLAP+ve ratio was ∼14% lower in SGA and ∼23% lower in patients with FGR.•The fetal blood PLAP+ve ratio has a similar behavior to the maternal PLAP+ve ratio.
Bibliografia:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
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ISSN:0143-4004
1532-3102
1532-3102
DOI:10.1016/j.placenta.2018.02.006