Placental expression of heparan sulfate 3-O-sulfotransferase-3A1 in normotensive and pre-eclamptic pregnancies

Abstract Introduction The endothelial glycocalyx, consisting of membrane-bound proteoglycans and attached glycosaminoglycans plays an important role in vascular homeostasis. We aimed to assess whether glycocalyx mRNA transcripts are differentially expressed in placental tissue of pre-eclamptic and n...

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Published in:Placenta (Eastbourne) 2015-11, Vol.36 (11), p.1218-1224
Main Authors: Amraoui, F, Hassani Lahsinoui, H, Boussata, S, Keijser, R, Veenboer, G.J.M, Middeldorp, S, van der Post, J.A.M, Ris-Stalpers, C, Afink, G.B, van den Born, B.J.H
Format: Article
Language:English
Subjects:
3-O-Sulfotransferase-3A1
Adult
Birth Weight
Blood Pressure
Case-Control Studies
Female
Glycocalyx
Glycocalyx - metabolism
Glycomics
Heparan sulfate
Humans
In Situ Hybridization
Internal Medicine
Microarray Analysis
Obstetrics and Gynecology
Placenta - enzymology
Pre-eclampsia
Pre-Eclampsia - enzymology
Pregnancy
Real-Time Polymerase Chain Reaction
Sulfotransferases - metabolism
Young Adult
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Summary:Abstract Introduction The endothelial glycocalyx, consisting of membrane-bound proteoglycans and attached glycosaminoglycans plays an important role in vascular homeostasis. We aimed to assess whether glycocalyx mRNA transcripts are differentially expressed in placental tissue of pre-eclamptic and normotensive women. Methods We evaluated the expression of transcripts encoding for proteins involved in glycocalyx synthesis and degradation using a microarray analysis of placental mRNA obtained from pre-eclamptic and normotensive women. Participants were recruited from the department of obstetrics at a university hospital in Amsterdam, The Netherlands. The most prominent differentially expressed transcript was validated by qPCR on 112 additional placenta samples. Results Of 78 preselected genes involved in glycocalyx synthesis and degradation, only HS3ST3A1 mRNA was differentially expressed in placental tissue obtained from pre-eclamptic women (N = 12) compared to normotensive women (N = 12, fold change = 0.61, p  = 0.02). Validation with qPCR in additional placental samples of 64 normotensive and 48 pre-eclamptic women confirmed that normalized mRNA expression of HS3ST3A1 was decreased by 27% (95% CI 14%–41%) in placental tissue obtained from pre-eclamptic compared to normotensive women ( p  
ISSN:0143-4004
1532-3102
DOI:10.1016/j.placenta.2015.09.008