Evidence map›Paper›PMID 34406903›Full record

ArticleAmerican journal of physiology. Cell physiology2021

Syncytialization alters the extracellular matrix and barrier function of placental trophoblasts.

Kyle H Moore, Haley A Murphy, Heather Chapman, Eric M George

Open access · greenAbstract read
In one paragraph

Article in American journal of physiology. Cell physiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
2.0field-weighted citation impact, top 12% 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

15 citing papers in PubMed, 23 citations in OpenAlex.

  1. Repurposing metformin for choriocarcinoma: targeting the AMPK/mTOR pathway.Naunyn-Schmiedeberg's archives of pharmacology · 2026
    Review
  2. Review
  3. Placental Barrier Breakdown Induced byInternational journal of molecular sciences · 2025
    Article
  4. Article
  5. Review
  6. Trophoblast Fusion in Hypertensive Disorders of Pregnancy and Preeclampsia.International journal of molecular sciences · 2025
    Review
  7. Review
  8. Article
  9. Article
  10. Acute pyelonephritis in pregnancy and plasma syndecan-1: evidence of glycocalyx involvement.The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians · 2023
    Article
  11. Maternal plasma syndecan-1: a biomarker for fetal growth restriction.The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians · 2023
    Article
  12. Article
  13. Review
  14. Article
  15. Article
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

4 authors at 1 institution in 1 country.

Kyle H MooreDepartment of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, Mississippi.ORCID 0000-0002-8028-8205
Haley A MurphyDepartment of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, Mississippi.
Heather ChapmanDepartment of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, Mississippi.
Eric M GeorgeDepartment of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, Mississippi.
Jackson Memorial Hospital · US

Funding

STRUCTURAL VASCULAR ADAPTATION OF THE MICROCIRCULATIONP01HL051971 · NHLBI · UNIVERSITY OF MISSISSIPPI MEDICAL CENTER · PI HALL, JOHN E · 1993 to 2018
$39.4M
The role of leptin in autoimmune-associated hypertensionP20GM104357 · NIGMS · UNIVERSITY OF MISSISSIPPI MED CTR · PI TAYLOR, ERIN BASSFORD · 2013 to 2022
$23.4M
Hypertension and Cardiorenal Research Training ProgramT32HL105324 · NHLBI · UNIVERSITY OF MISSISSIPPI MED CTR · PI Joey P. Granger · 2010 to 2026
$7.8M
A Novel Therapy For PreeclampsiaR01HL137791 · NHLBI · UNIVERSITY OF MISSISSIPPI MED CTR · PI GEORGE, ERIC MATTHEW · 2017 to 2021
$1.9M
HHS | National Institutes of Health (NIH) P01HL51971HHS | National Institutes of Health (NIH) P20GM104357HHS | National Institutes of Health (NIH) R01HL137791HHS | National Institutes of Health (NIH) T32HL105324NHLBI NIH HHS P01 HL051971NHLBI NIH HHS R01 HL137791NHLBI NIH HHS T32 HL105324NIGMS NIH HHS P20 GM104357
6 · The paper itself

Abstract

The human placenta is of vital importance for proper nutrient and waste exchange, immune regulation, and overall fetal health and growth. Specifically, the extracellular matrix (ECM) of placental syncytiotrophoblasts, which extends outward from the placental chorionic villi into maternal blood, acts on a molecular level to regulate and maintain this barrier. Importantly, placental barrier dysfunction has been linked to diseases of pregnancy such as preeclampsia and intrauterine growth restriction. To help facilitate our understanding of the interface and develop therapeutics to repair or prevent dysfunction of the placental barrier, in vitro models of the placental ECM would be of great value. In this study, we aimed to characterize the ECM of an in vitro model of the placental barrier using syncytialized BeWo choriocarcinoma cells. Syncytialization caused a marked change in syndecans, integral proteoglycans of the ECM, which matched observations of in vivo placental ECM. Syndecan-1 expression increased greatly and predominated the other variants. Barrier function of the ECM, as measured by electric cell-substrate impedance sensing (ECIS), increased significantly during and after syncytialization, whereas the ability of THP-1 monocytes to adhere to syncytialized BeWos was greatly reduced compared with nonsyncytialized controls. Furthermore, ECIS measurements indicated that ECM degradation with matrix metalloproteinase-9 (MMP-9), but not heparanase, decreased barrier function. This decrease in ECIS-measured barrier function was not associated with any changes in THP-1 adherence to syncytialized BeWos treated with heparanase or MMP-9. Thus, syncytialization of BeWos provides a physiologically accurate placental ECM with a barrier function matching that seen in vivo.

Indexed as

PlacentationCell MovementElectric ImpedanceExtracellular MatrixFemaleGlucuronidaseHeparanaseHumansMatrix Metalloproteinase 9MonocytesPermeabilityPregnancySyndecan-1THP-1 CellsTrophoblastsUp-RegulationGlucuronidaseHeparanaseMatrix Metalloproteinase 9MMP9 protein, humanSDC1 protein, humanSyndecan-1barrierextracellular matrixplacentasyncytializetrophoblast

Identifiers

PMID34406903
PMCPMC8560385
OpenAlexW3193729215

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.