Evidence map›Paper›PMID 34894055›Full record

ArticleJournal of cellular and molecular medicine2022

Syncytiotrophoblast-derived extracellular vesicles carry apolipoprotein-E and affect lipid synthesis of liver cells in vitro.

Chiara Tersigni, Muhammad Furqan Bari, Shijei Cai, Wei Zhang, Neva Kandzija, Alice Buchan, Fabrizio Miranda, Nicoletta Di Simone, Christopher W Redman, Claire Bastie and 1 more

Open access · goldAbstract read
In one paragraph

Article in Journal of cellular and molecular medicine, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
2.2field-weighted citation impact, top 11% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

17 citing papers in PubMed, 19 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors at 4 institutions in 3 countries.

Chiara TersigniNuffield Department of Women's & Reproductive Health, University of Oxford, Oxford, UK.ORCID 0000-0003-1590-3942
Muhammad Furqan BariDow Medical College, Karachi, Pakistan.
Shijei CaiRadcliffe Department of Medicine, University of Oxford, Oxford, UK.
Wei ZhangNuffield Department of Women's & Reproductive Health, University of Oxford, Oxford, UK.
Neva KandzijaNuffield Department of Women's & Reproductive Health, University of Oxford, Oxford, UK.
Alice BuchanNuffield Department of Women's & Reproductive Health, University of Oxford, Oxford, UK.
Fabrizio MirandaNuffield Department of Women's & Reproductive Health, University of Oxford, Oxford, UK.
Nicoletta Di SimoneDepartment of Biomedical Sciences, Humanitas University, Milan, Italy.
Christopher W RedmanNuffield Department of Women's & Reproductive Health, University of Oxford, Oxford, UK.
Claire BastieDivision of Biomedical Sciences, Warwick Medical School, University of Warwick, Coventry, UK.
Manu VatishNuffield Department of Women's & Reproductive Health, University of Oxford, Oxford, UK.
University of Oxford · GBDow University of Health Sciences · PKHumanitas University · ITUniversity of Warwick · GB

Funding

Medical Research Council MR/J003360/1
6 · The paper itself

Abstract

In normal pregnancy, hepatic metabolism adaptation occurs with an increase in lipid biosynthesis. Placental shedding of syncytiotrophoblast-derived extracellular vesicles (STBEVs) into the maternal circulation constitutes a major signalling mechanism between foetus and mother. We investigated whether STBEVs from normal pregnant women might target liver cells in vitro and induce changes in lipid synthesis. This study was performed at the Nuffield Department of Women's & Reproductive Health, Oxford, UK. STBEVs were obtained by dual-lobe placental perfusion from 11 normal pregnancies at term. Medium/large and small STBEVs were collected by ultracentrifugation at 10,000g and 150,000g, respectively. STBEVs were analysed by Western blot analysis and flow cytometry for co-expression of apolipoprotein-E (apoE) and placental alkaline phosphatase (PLAP). The uptake of STBEVs by liver cells and the effect on lipid metabolism was evaluated using a hepatocarcinoma cell line (HepG2 cells). Data were analysed by one-way ANOVA and Student's t test. We demonstrated that: (a) STBEVs carry apoE; (b) HepG2 cells take up STBEVs through an apoE-LDL receptor interaction; (c) STBEV incorporation into HepG2 cells resulted in (i) increased cholesterol release (ELISA); (ii) increased expression of the genes SQLE and FDPS (microarray) involved in cholesterol biosynthesis; (iii) downregulation of the CLOCK gene (microarray and PCR), involved in the circadian negative control of lipid synthesis in liver cells. In conclusion, the placenta may orchestrate the metabolic adaptation of the maternal liver through release of apoE-positive STBEVs, by increasing lipid synthesis in a circadian-independent fashion, meeting the nutritional needs of the growing foetus.

Indexed as

Extracellular VesiclesTrophoblastsApolipoproteinsApolipoproteins EFemaleHumansLipidsLiverPlacentaPregnancyApolipoproteinsApolipoproteins ELipidsapolipoprotein-Eextracellular vesicleslipid metabolismliverplacentapregnancy

Identifiers

PMID34894055
PMCPMC8742183
OpenAlexW4200621972

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.