Evidence map›Paper›PMID 34131139›Full record

ArticleNature communications2021

iPLA2β-mediated lipid detoxification controls p53-driven ferroptosis independent of GPX4.

Delin Chen, Bo Chu, Xin Yang, Zhaoqi Liu, Ying Jin, Ning Kon, Raul Rabadan, Xuejun Jiang, Brent R Stockwell, Wei Gu

Open access · goldAbstract read
In one paragraph

Article in Nature communications, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 226 papers.

0numbers the graph read from it
0cells of the map it votes in
226citing papers in PubMed
34.1field-weighted citation impact, top 1% 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

226 citing papers in PubMed, 315 citations in OpenAlex.

  1. Phospholipases: Where Do We Stand?Methods in molecular biology (Clifton, N.J.) · 2027
    Review
  2. Review
  3. Article
  4. Review
  5. The Phospholipase AJournal of lipid and atherosclerosis · 2026
    Review
  6. Article
  7. Review
  8. Review
  9. PLA2G2F suppresses ferroptosis through phospholipid remodeling.Nature structural & molecular biology · 2026
    Article
  10. Review
  11. Article
  12. Review
  13. Review
  14. Review
  15. Review
  16. Purine salvage pathway protects CD8Nature immunology · 2026
    Article
  17. Article
  18. Article
  19. Advances and challenges of ferroptosis in tumor immunity.Journal of physiology and biochemistry · 2026
    Review
  20. Review

166 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

10 authors at 3 institutions in 1 country.

Delin Chen *Institute for Cancer Genetics, and Department of Pathology and Cell Biology, and Herbert Irving Comprehensive Cancer Center,Vagelos College of Physicians & Surgeons, Columbia University, New York, NY, 10032, USA.
Bo Chu *Institute for Cancer Genetics, and Department of Pathology and Cell Biology, and Herbert Irving Comprehensive Cancer Center,Vagelos College of Physicians & Surgeons, Columbia University, New York, NY, 10032, USA.
Xin YangInstitute for Cancer Genetics, and Department of Pathology and Cell Biology, and Herbert Irving Comprehensive Cancer Center,Vagelos College of Physicians & Surgeons, Columbia University, New York, NY, 10032, USA.
Zhaoqi LiuProgram for Mathematical Genomics, Departments of Systems Biology and Biomedical Informatics, Columbia University, New York, NY, 10032, USA.
Ying JinInstitute for Cancer Genetics, and Department of Pathology and Cell Biology, and Herbert Irving Comprehensive Cancer Center,Vagelos College of Physicians & Surgeons, Columbia University, New York, NY, 10032, USA.
Ning KonInstitute for Cancer Genetics, and Department of Pathology and Cell Biology, and Herbert Irving Comprehensive Cancer Center,Vagelos College of Physicians & Surgeons, Columbia University, New York, NY, 10032, USA.
Raul RabadanProgram for Mathematical Genomics, Departments of Systems Biology and Biomedical Informatics, Columbia University, New York, NY, 10032, USA.ORCID 0000-0001-7946-9255
Xuejun JiangCell Biology Program, Memorial Sloan-Kettering Cancer Center, New York, NY, 10065, USA.ORCID 0000-0002-8670-3828
Brent R StockwellDepartment of Biological Sciences, Department of Chemistry, Columbia University, New York, NY, 10027, USA.
Wei GuInstitute for Cancer Genetics, and Department of Pathology and Cell Biology, and Herbert Irving Comprehensive Cancer Center,Vagelos College of Physicians & Surgeons, Columbia University, New York, NY, 10032, USA. wg8@cumc.columbia.edu.ORCID 0000-0002-1480-2368
Cancer Genetics (United States) · USColumbia University · USMemorial Sloan Kettering Cancer Center · US

Funding

X-RAY CRYSTALLOGRAPHYP30CA008748 · NCI · SLOAN-KETTERING INSTITUTE FOR CANCER RES · PI SELWYN M VICKERS · 1985 to 2026
$347.4M
Tumor Biology and Microenvironment ProgramP30CA013696 · NCI · COLUMBIA UNIV NEW YORK MORNINGSIDE · PI Anil K Rustgi · 1985 to 2026
$115.3M
Scientific ReagentsP01CA087497 · NCI · COLUMBIA UNIV NEW YORK MORNINGSIDE · PI PRIVES, CAROL · 2000 to 2021
$35.4M
Defining the functions and translational potential of ferroptosisR35CA209896 · NCI · COLUMBIA UNIV NEW YORK MORNINGSIDE · PI STOCKWELL, BRENT R. · 2016 to 2022
$6.5M
Regulation of p53 acetylation and deacetylation in tumorigenesis.R01CA085533 · NCI · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI GU, WEI · 2000 to 2021
$5.2M
Novel small molecule USP7 Inhibitors for p53 activation and cancer therapyR01CA254970 · NCI · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI GU, WEI · 2021 to 2025
$1.8M
Mechanisms of targeting oncoprotein SET in tumor suppressionR01CA216884 · NCI · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI GU, WEI · 2017 to 2021
$1.8M
Regulation of SLC7A11 by p53 in cancer metabolismR01CA190477 · NCI · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI GU, WEI · 2016 to 2020
$1.8M
p53 acetylation in ferroptosis and tumor suppressionR01CA224272 · NCI · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI GU, WEI · 2018 to 2021
$1.5M
Development of ferroptosis inhibitors for Huntington DiseaseR61NS109407 · NINDS · COLUMBIA UNIV NEW YORK MORNINGSIDE · PI STOCKWELL, BRENT R. · 2019 to 2019
$400k
NCI NIH HHS P01 CA087497NCI NIH HHS P30 CA008748NCI NIH HHS P30 CA013696NCI NIH HHS R01 CA085533NCI NIH HHS R01 CA190477NCI NIH HHS R01 CA216884NCI NIH HHS R01 CA224272NCI NIH HHS R01 CA254970NCI NIH HHS R35 CA209896NINDS NIH HHS R61 NS109407
6 · The paper itself

Abstract

Here, we identify iPLA2β as a critical regulator for p53-driven ferroptosis upon reactive oxygen species (ROS)-induced stress. The calcium-independent phospholipase iPLA2β is known to cleave acyl tails from the glycerol backbone of lipids and release oxidized fatty acids from phospholipids. We found that iPLA2β-mediated detoxification of peroxidized lipids is sufficient to suppress p53-driven ferroptosis upon ROS-induced stress, even in GPX4-null cells. Moreover, iPLA2β is overexpressed in human cancers; inhibition of endogenous iPLA2β sensitizes tumor cells to p53-driven ferroptosis and promotes p53-dependent tumor suppression in xenograft mouse models. These results demonstrate that iPLA2β acts as a major ferroptosis repressor in a GPX4-independent manner. Notably, unlike GPX4, loss of iPLA2β has no obvious effect on normal development or cell viability in normal tissues but iPLA2β plays an essential role in regulating ferroptosis upon ROS-induced stress. Thus, our study suggests that iPLA2β is a promising therapeutic target for activating ferroptosis-mediated tumor suppression without serious toxicity concerns.

Indexed as

A549 CellsAnimalsCell Line, TumorCell SurvivalDisease Models, AnimalFatty AcidsFemaleFerroptosisGroup VI Phospholipases A2HumansMiceMice, NudePhospholipid Hydroperoxide Glutathione PeroxidasePhospholipidsReactive Oxygen SpeciesTumor Suppressor Protein p53Fatty Acidsglutathione peroxidase 4, mouseGroup VI Phospholipases A2Phospholipid Hydroperoxide Glutathione PeroxidasePhospholipidsPla2g6 protein, mouseReactive Oxygen SpeciesTP53 protein, humanTrp53 protein, mouseTumor Suppressor Protein p53

Identifiers

PMID34131139
PMCPMC8206155
OpenAlexW3168103972

What OpenQuestion holds

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LicenceCC BY
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.