Evidence map›Paper›PMID 33087576›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2020

PLA2G6 guards placental trophoblasts against ferroptotic injury.

Ofer Beharier, Vladimir A Tyurin, Julie P Goff, Jennifer Guerrero-Santoro, Kazuhiro Kajiwara, Tianjiao Chu, Yulia Y Tyurina, Claudette M St Croix, Callen T Wallace, Samuel Parry and 3 more

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 107 papers.

0numbers the graph read from it
0cells of the map it votes in
107citing papers in PubMed
9.1field-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

107 citing papers in PubMed, 179 citations in OpenAlex.

  1. Ferroptosis as a target mechanism in heart and kidney disease.The Journal of clinical investigation · 2026
    Review
  2. Article
  3. Review
  4. Article
  5. Review
  6. Article
  7. Review
  8. Article
  9. Trophoblast ferroptosis restricts SARS-CoV-2 spread in the placenta.bioRxiv : the preprint server for biology · 2026
    Article
  10. Review
  11. Article
  12. Fueling Death: The Metabolic Control of Ferroptosis.Advances in experimental medicine and biology · 2026
    Review
  13. Review
  14. Trophoblast adaptation to hypoxia: balance and dysfunction.Cell communication and signaling : CCS · 2025
    Review
  15. Review
  16. Article
  17. Article
  18. Article
  19. Review
  20. Review

47 more citing papers are in PubMed but not listed here.

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

13 authors at 3 institutions in 2 countries.

Ofer BeharierMagee-Womens Research Institute, Department of Obstetrics, Gynecology, and Reproductive Sciences, University of Pittsburgh, Pittsburgh, PA 15213.ORCID 0000-0001-5317-4512
Vladimir A TyurinDepartment of Environmental and Occupational Health and Center for Free Radical and Antioxidant Health, University of Pittsburgh, Pittsburgh, PA 15261.ORCID 0000-0002-3474-1697
Julie P GoffMagee-Womens Research Institute, Department of Obstetrics, Gynecology, and Reproductive Sciences, University of Pittsburgh, Pittsburgh, PA 15213.
Jennifer Guerrero-SantoroMagee-Womens Research Institute, Department of Obstetrics, Gynecology, and Reproductive Sciences, University of Pittsburgh, Pittsburgh, PA 15213.
Kazuhiro KajiwaraMagee-Womens Research Institute, Department of Obstetrics, Gynecology, and Reproductive Sciences, University of Pittsburgh, Pittsburgh, PA 15213.ORCID 0000-0003-4358-8791
Tianjiao ChuMagee-Womens Research Institute, Department of Obstetrics, Gynecology, and Reproductive Sciences, University of Pittsburgh, Pittsburgh, PA 15213.ORCID 0000-0001-9644-771X
Yulia Y TyurinaMagee-Womens Research Institute, Department of Obstetrics, Gynecology, and Reproductive Sciences, University of Pittsburgh, Pittsburgh, PA 15213.ORCID 0000-0003-0287-2091
Claudette M St CroixDepartment of Cell Biology, University of Pittsburgh, Pittsburgh, PA 15261.ORCID 0000-0003-0794-4939
Callen T WallaceDepartment of Cell Biology, University of Pittsburgh, Pittsburgh, PA 15261.ORCID 0000-0001-6852-4976
Samuel ParryDepartment of Obstetrics and Gynecology, University of Pennsylvania School of Medicine, Philadelphia, PA 19104.
W Tony ParksDepartment of Laboratory Medicine and Pathobiology, Mount Sinai Hospital, University of Toronto, Toronto, ON, Canada M5G 1X8.ORCID 0000-0001-7341-3277
Valerian E KaganDepartment of Environmental and Occupational Health and Center for Free Radical and Antioxidant Health, University of Pittsburgh, Pittsburgh, PA 15261.ORCID 0000-0002-7245-1885
Yoel SadovskyMagee-Womens Research Institute, Department of Obstetrics, Gynecology, and Reproductive Sciences, University of Pittsburgh, Pittsburgh, PA 15213; ysadovsky@mwri.magee.edu.ORCID 0000-0003-2969-6737
University of Pittsburgh · USMount Sinai Hospital · CAUniversity of Pennsylvania · US

Funding

Translational Research Support CoreP30ES013508 · NIEHS · UNIVERSITY OF PENNSYLVANIA · PI Trevor M Penning · 2006 to 2026
$35.3M
Transcriptional and developmental regulation of placental fuel storage and metabP01HD069316 · NICHD · MAGEE-WOMEN'S RES INST AND FOUNDATION · PI BARAK, YAACOV · 2012 to 2016
$5.0M
NICHD NIH HHS P01 HD069316NIEHS NIH HHS P30 ES013508
6 · The paper itself

Abstract

The recently identified ferroptotic cell death is characterized by excessive accumulation of hydroperoxy-arachidonoyl (C20:4)- or adrenoyl (C22:4)- phosphatidylethanolamine (Hp-PE). The selenium-dependent glutathione peroxidase 4 (GPX4) inhibits ferroptosis, converting unstable ferroptotic lipid hydroperoxides to nontoxic lipid alcohols in a tissue-specific manner. While placental oxidative stress and lipotoxicity are hallmarks of placental dysfunction, the possible role of ferroptosis in placental dysfunction is largely unknown. We found that spontaneous preterm birth is associated with ferroptosis and that inhibition of GPX4 causes ferroptotic injury in primary human trophoblasts and during mouse pregnancy. Importantly, we uncovered a role for the phospholipase PLA2G6 (PNPLA9, iPLA2beta), known to metabolize Hp-PE to lyso-PE and oxidized fatty acid, in mitigating ferroptosis induced by GPX4 inhibition in vitro or by hypoxia/reoxygenation injury in vivo. Together, we identified ferroptosis signaling in the human and mouse placenta, established a role for PLA2G6 in attenuating trophoblastic ferroptosis, and provided mechanistic insights into the ill-defined placental lipotoxicity that may inspire PLA2G6-targeted therapeutic strategies.

Indexed as

AnimalsFemaleFerroptosisGlutathione PeroxidaseGroup VI Phospholipases A2HumansIronLipid PeroxidesMiceMice, KnockoutPhosphatidylethanolaminesPhospholipid Hydroperoxide Glutathione PeroxidasePlacentaPregnancyPremature BirthSignal TransductionGlutathione PeroxidaseGroup VI Phospholipases A2IronLipid PeroxidesphosphatidylethanolaminePhosphatidylethanolaminesPhospholipid Hydroperoxide Glutathione PeroxidasePLA2G6 protein, humanPla2g6 protein, mouseferroptosisGPX4PLA2G6placentatrophoblast

Identifiers

PMID33087576
PMCPMC7959495
OpenAlexW3094620150

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.