Evidence map›Paper›PMID 36995581›Full record

ArticleHuman cell2023

Downregulation of argininosuccinate synthase 1 (ASS1) is associated with hypoxia in placental development.

Sonia Fantone, Leonardo Ermini, Federica Piani, Nicoletta Di Simone, Greta Barbaro, Stefano Raffaele Giannubilo, Rosaria Gesuita, Giovanni Tossetta, Daniela Marzioni

Abstract read
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In one paragraph

Article in Human cell, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
8.9field-weighted citation impact, top 2% 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

18 citing papers in PubMed, 30 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Association of theGenes · 2026
    Article
  6. Review
  7. Article
  8. Trophoblast adaptation to hypoxia: balance and dysfunction.Cell communication and signaling : CCS · 2025
    Review
  9. Article
  10. Review
  11. Preeclampsia as a Study Model for Aging: The Klotho Gene Paradigm.International journal of molecular sciences · 2025
    Review
  12. Review
  13. Article
  14. Article
  15. Review
  16. Review
  17. Circulating miRNAs and Preeclampsia: From Implantation to Epigenetics.International journal of molecular sciences · 2024
    Review
  18. 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

9 authors at 5 institutions in 1 country.

Sonia FantoneDepartment of Experimental and Clinical Medicine, Università Politecnica delle Marche, 60126, Ancona, Italy.
Leonardo ErminiDepartment of Life Science, University of Siena, 53100, Siena, Italy.
Federica PianiCardiovascular Internal Medicine, IRCCS Azienda Ospedaliero-Universitaria di Bologna, 40128, Bologna, Italy.
Nicoletta Di SimoneDepartment of Biomedical Sciences, Humanitas University, 20072, Milan, Italy.
Greta BarbaroIstituto di Clinica Ostetrica e Ginecologica, Università Cattolica del Sacro Cuore, 00168, Rome, Italy.
Stefano Raffaele GiannubiloClinic of Obstetrics and Gynaecology, Department of Clinical Sciences, Università Politecnica delle Marche, Salesi Hospital, Azienda Ospedaliero Universitaria, 60126, Ancona, Italy.
Rosaria GesuitaCentre of Epidemiology and Biostatistics, Università Politecnica delle Marche, 60126, Ancona, Italy.
Giovanni Tossetta *Department of Experimental and Clinical Medicine, Università Politecnica delle Marche, 60126, Ancona, Italy. g.tossetta@univpm.it.ORCID http://orcid.org/0000-0001-7003-1230
Daniela Marzioni *Department of Experimental and Clinical Medicine, Università Politecnica delle Marche, 60126, Ancona, Italy.
Marche Polytechnic University · ITAzienda USL di Bologna · ITHumanitas University · ITUniversità Cattolica del Sacro Cuore · ITUniversity of Siena · IT

Funding

Ministero della Salute SG-2018-12367994
6 · The paper itself

Abstract

Argininosuccinate synthase (ASS1) is involved in nitric oxide production, which has a key role in placental development improving pregnancy outcomes. Syncytiotrophoblast and extravillous trophoblast differentiations are milestones of placental development and their impairment can cause pathologies, such as preeclampsia (PE) and fetal growth restriction (FGR). Immunohistochemistry and Western blotting were used to localize and quantify ASS1 in first trimester (8.2 ± 1.8 weeks), third trimester (38.6 ± 1.1 weeks), and PE (36.3 ± 1.5 weeks) placentas. In addition, cell cultures were used to evaluate ASS1 expression under hypoxic conditions and the syncytialization process. Our data showed that ASS1 is localized in the villous cytotrophoblast of first trimester, third trimester, and PE placentas, while the villous cytotrophoblast adjacent to the extravillous trophoblast of cell columns as well as the extravillous trophoblast were negative for ASS1 in first trimester placentas. In addition, ASS1 was decreased in third trimester compared to the first trimester placentas (p = 0.003) and no differences were detected between third trimester and PE placentas. Moreover, ASS1 expression was decreased in hypoxic conditions and syncytialized cells compared to those not syncytialized. In conclusion, we suggest that the expression of ASS1 in villous cytotrophoblast is related to maintaining proliferative phenotype, while ASS1 absence may be involved in promoting the differentiation of villous cytotrophoblast in extravillous cytotrophoblast of cell columns in first trimester placentas.

Indexed as

PlacentationPre-EclampsiaArgininosuccinate SynthaseDown-RegulationFemaleHumansHypoxiaPlacentaPregnancyTrophoblastsArgininosuccinate SynthaseASS1CytotrophoblastHypoxiaPlacentaPreeclampsia

Identifiers

PMID36995581
OpenAlexW4361273813

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.