Evidence map›Paper›PMID 35197507›Full record

ArticleScientific reports2022

Endothelial cell ferroptosis mediates monocrotaline-induced pulmonary hypertension in rats by modulating NLRP3 inflammasome activation.

Shan-Shan Xie, Yan Deng, Sheng-Lan Guo, Jia-Quan Li, Ying-Chuan Zhou, Juan Liao, Dan-Dan Wu, Wei-Fang Lan

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 84 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
84citing papers in PubMed, 1 pooled it
19.5field-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

84 citing papers in PubMed, 1 synthesis or guideline pooled it, 137 citations in OpenAlex.

  1. Pooled it
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  3. Article
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  9. [Role of programmed cell death in platinum resistance in ovarian cancer].Zhong nan da xue xue bao. Yi xue ban = Journal of Central South University. Medical sciences · 2026
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  10. Regulated Cell Death in Idiopathic Pulmonary Fibrosis.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2026
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  15. PANoptosis in diabetes: immunometabolic insights and treatments.Apoptosis : an international journal on programmed cell death · 2026
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  16. Review
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  18. HMGB1: a multifaceted mediator of cell death pathways in cardiovascular diseases.Apoptosis : an international journal on programmed cell death · 2025
    Review
  19. Review
  20. Review

24 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

8 authors at 2 institutions in 1 country.

Shan-Shan XieDepartment of Ultrasound, First Affiliated Hospital of Guangxi Medical University, 6 Shuang yong Road, Nanning, 530021, People's Republic of China.
Yan DengDepartment of Ultrasound, First Affiliated Hospital of Guangxi Medical University, 6 Shuang yong Road, Nanning, 530021, People's Republic of China. 190662044@qq.com.
Sheng-Lan GuoDepartment of Ultrasound, First Affiliated Hospital of Guangxi Medical University, 6 Shuang yong Road, Nanning, 530021, People's Republic of China.
Jia-Quan LiExperimental Centre of Guangxi Medical University, Nanning, People's Republic of China.
Ying-Chuan ZhouDepartment of Pathology, First Affiliated Hospital of Guangxi Medical University, Nanning, People's Republic of China.
Juan LiaoDepartment of Ultrasound, First Affiliated Hospital of Guangxi Medical University, 6 Shuang yong Road, Nanning, 530021, People's Republic of China.
Dan-Dan WuDepartment of Ultrasound, First Affiliated Hospital of Guangxi Medical University, 6 Shuang yong Road, Nanning, 530021, People's Republic of China.
Wei-Fang LanDepartment of Ultrasound, First Affiliated Hospital of Guangxi Medical University, 6 Shuang yong Road, Nanning, 530021, People's Republic of China.
First Affiliated Hospital of GuangXi Medical University · CNGuangxi Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Inflammation triggers pulmonary vascular remodelling. Ferroptosis, a nonapoptotic form of cell death that is triggered by iron-dependent lipid peroxidation and contributes to the pathogenesis of several inflammation-related diseases, but its role in pulmonary hypertension (PH) has not been studied. We examined endothelial cell ferroptosis in PH and the potential mechanisms. Pulmonary artery endothelial cells (PAECs) and lung tissues from monocrotaline (MCT)-induced PH rats were analysed for ferroptosis markers, including lipid peroxidation, the labile iron pool (LIP) and the protein expression of glutathione peroxidase 4 (GPX4), ferritin heavy chain 1 (FTH1) and NADPH oxidase-4 (NOX4). The effects of the ferroptosis inhibitor ferrostatin-1 (Fer-1) on endothelial cell ferroptosis and pulmonary vascular remodelling in MCT-induced rats were studied in vitro and in vivo. Ferroptosis was observed in PAECs from MCT-induced PH rats in vitro and in vivo and was characterized by a decline in cell viability accompanied by increases in the LIP and lipid peroxidation, the downregulation of GPX4 and FTH1 expression and the upregulation of NOX4 expression. High-mobility group box 1 (HMGB1)/Toll-like receptor 4 (TLR4)/NOD-like receptor family pyrin domain containing 3 (NLRP3) inflammasome signalling was measured by western blotting. These changes were significantly blocked by Fer-1 administration in vitro and in vivo. These results suggest that Fer-1 plays a role in inhibiting ferroptosis-mediated PAEC loss during the progression of PH. The ferroptosis-induced inflammatory response depended on the activation of HMGB1/TLR4 signalling, which activated the NLRP3 inflammasome in vivo. We are the first to suggest that pulmonary artery endothelial ferroptosis triggers inflammatory responses via the HMGB1/TLR4/NLRP3 inflammasome signalling pathway in MCT-induced rats. Treating PH with a ferroptosis inhibitor and exploring new treatments based on ferroptosis regulation might be promising therapeutic strategies for PH.

Indexed as

AnimalsBacterial ToxinsCells, CulturedCyclohexylaminesDown-RegulationEndothelial CellsFerroptosisHeart VentriclesHemodynamicsHMGB1 ProteinHypertension, PulmonaryInflammasomesInflammationLungMacrophagesMaleBacterial ToxinsCyclohexylaminescytolethal distending toxinferrostatin-1Hbp1 protein, ratHMGB1 ProteinInflammasomesMonocrotalineNLR Family, Pyrin Domain-Containing 3 ProteinNlrp3 protein, ratPhenylenediaminesTlr4 protein, ratToll-Like Receptor 4

Identifiers

PMID35197507
PMCPMC8866506
OpenAlexW4214588654

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.