Evidence map›Paper›PMID 33065549›Full record

ArticleReproduction (Cambridge, England)2020

Pro-angiogenic effects of pregnancy-specific glycoproteins in endothelial and extravillous trophoblast cells.

Shemona Rattila, Florian Kleefeldt, Angela Ballesteros, Jimena S Beltrame, Maria L Ribeiro, Süleyman Ergün, Gabriela Dveksler

Open access · bronzeAbstract read
In one paragraph

Article in Reproduction (Cambridge, England), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
1.3field-weighted citation impact, top 18% 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

11 citing papers in PubMed, 19 citations in OpenAlex.

  1. Article
  2. International journal of molecular sciences · 2025
    Article
  3. Article
  4. First Trimester Placental Biomarkers for Pregnancy Outcomes.International journal of molecular sciences · 2024
    Review
  5. Article
  6. Article
  7. Morfofunctional and Molecular Changes in Placenta and Peripheral Blood in Preeclampsia and Gestational Diabetes Mellitus.Doklady biological sciences : proceedings of the Academy of Sciences of the USSR, Biological sciences sections · 2023
    Article
  8. Review
  9. Article
  10. Article
  11. Review
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

7 authors at 4 institutions in 3 countries.

Shemona RattilaDepartment of Pathology, Uniformed Services University of Health Sciences, Bethesda, Maryland, USA.
Florian KleefeldtInstitute of Anatomy and Cell Biology, Julius-Maximilians-University Würzburg, Würzburg, Germany.
Angela BallesterosMolecular Physiology and Biophysics Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, Maryland, USA.
Jimena S BeltrameLaboratory of Physiology and Pharmacology of Reproduction, Centre for Pharmacological and Botanical Studies (CONICET - School of Medicine, University of Buenos Aires), Buenos Aires, Argentina.
Maria L RibeiroLaboratory of Physiology and Pharmacology of Reproduction, Centre for Pharmacological and Botanical Studies (CONICET - School of Medicine, University of Buenos Aires), Buenos Aires, Argentina.
Süleyman ErgünInstitute of Anatomy and Cell Biology, Julius-Maximilians-University Würzburg, Würzburg, Germany.
Gabriela DvekslerDepartment of Pathology, Uniformed Services University of Health Sciences, Bethesda, Maryland, USA.
Uniformed Services University of the Health Sciences · USUniversity of Buenos Aires · ARUniversity of Würzburg · DENational Institutes of Health · US

Funding

PROBING THE STRUCTURE AND FUNCTION OF POTASSIUM AND CALCIUM CHANNELSZ01NS002945 · NINDS · NEUROLOGICAL DISORDERS AND STROKE · PI SWARTZ, KENTON J · 1997 to 2008
$1.9M
Therapeutic potential of PSG1 administration in GVHDR21AI120918 · NIAID · HENRY M. JACKSON FDN FOR THE ADV MIL/MED · PI DVEKSLER, GABRIELA S · 2016 to 2017
$424k
Intramural NIH HHS Z01 NS002945NIAID NIH HHS R21 AI120918
6 · The paper itself

Abstract

We previously reported that binding to heparan sulfate (HS) is required for the ability of the placentally secreted pregnancy-specific glycoprotein 1 (PSG1) to induce endothelial tubulogenesis. PSG1 is composed of four immunoglobulin-like domains but which domains of the protein bind to HS remains unknown. To analyze the interaction of PSG1 with HS, we generated several recombinant proteins, including the individual domains, chimeric proteins between two PSG1 domains, and mutants. Using flow cytometric and surface plasmon resonance studies, we determined that the B2 domain of PSG1 binds to HS and that the positively charged amino acids encompassed between amino acids 43-59 are required for this interaction. Furthermore, we showed that the B2 domain of PSG1 is required for the increase in the formation of tubes by endothelial cells (EC) including a human endometrial EC line and two extravillous trophoblast (EVT) cell lines and for the pro-angiogenic activity of PSG1 observed in an aortic ring assay. PSG1 enhanced the migration of ECs while it increased the expression of matrix metalloproteinase-2 in EVTs, indicating that the pro-angiogenic effect of PSG1 on these two cell types may be mediated by different mechanisms. Despite differences in amino acid sequence, we observed that all human PSGs bound to HS proteoglycans and confirmed that at least two other members of the family, PSG6 and PSG9, induce tube formation. These findings contribute to a better understanding of the pro-angiogenic activity of human PSGs and strongly suggest conservation of this function among all PSG family members.

Indexed as

Neovascularization, PhysiologicAngiogenesis Inducing AgentsEndothelial CellsFemaleGlycoproteinsHumansPlacentaPregnancyPregnancy ProteinsPregnancy-Specific beta 1-GlycoproteinsTrophoblastsAngiogenesis Inducing AgentsGlycoproteinsPregnancy ProteinsPregnancy-Specific beta 1-GlycoproteinsPSG6 protein, human

Identifiers

PMID33065549
PMCPMC7575825
OpenAlexW3081360923

What OpenQuestion holds

Textmetadata
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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.