Evidence map›Paper›PMID 30563869›Full record

ArticleAnnals of the rheumatic diseases2019

REDD1/autophagy pathway promotes thromboinflammation and fibrosis in human systemic lupus erythematosus (SLE) through NETs decorated with tissue factor (TF) and interleukin-17A (IL-17A).

Eleni Frangou, Akrivi Chrysanthopoulou, Alexandros Mitsios, Konstantinos Kambas, Stella Arelaki, Iliana Angelidou, Athanasios Arampatzioglou, Hariklia Gakiopoulou, George K Bertsias, Panayotis Verginis and 2 more

Open access · hybridAbstract read
In one paragraph

Article in Annals of the rheumatic diseases, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 161 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
161citing papers in PubMed, 2 pooled it
7.5field-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

161 citing papers in PubMed, 2 syntheses or guidelines pooled it, 252 citations in OpenAlex.

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101 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

12 authors at 7 institutions in 5 countries.

Eleni Frangou *Laboratory of Immune Regulation and Tolerance, Autoimmunity and Inflammation, Biomedical Research Foundation of the Academy of Athens, Athens, Greece.
Akrivi Chrysanthopoulou *Department of Internal Medicine, Laboratory of Molecular Hematology, Democritus University of Thrace, Alexandroupolis, Greece.
Alexandros MitsiosDepartment of Internal Medicine, Laboratory of Molecular Hematology, Democritus University of Thrace, Alexandroupolis, Greece.
Konstantinos KambasDepartment of Internal Medicine, Laboratory of Molecular Hematology, Democritus University of Thrace, Alexandroupolis, Greece.
Stella ArelakiDepartment of Pathology, University Hospital of Alexandroupolis, Democritus University of Thrace, Alexandroupolis, Greece.
Iliana AngelidouDepartment of Internal Medicine, Laboratory of Molecular Hematology, Democritus University of Thrace, Alexandroupolis, Greece.
Athanasios ArampatzioglouDepartment of Internal Medicine, Laboratory of Molecular Hematology, Democritus University of Thrace, Alexandroupolis, Greece.
Hariklia Gakiopoulou1st Department of Pathology, National and Kapodistrian University of Athens Medical School, Athens, Greece.
George K BertsiasRheumatology, Clinical Immunology and Allergy, University of Crete School of Medicine, Heraklion, Greece.
Panayotis VerginisLaboratory of Immune Regulation and Tolerance, Autoimmunity and Inflammation, Biomedical Research Foundation of the Academy of Athens, Athens, Greece.
Konstantinos RitisDepartment of Internal Medicine, Laboratory of Molecular Hematology, Democritus University of Thrace, Alexandroupolis, Greece.
Dimitrios T BoumpasLaboratory of Immune Regulation and Tolerance, Autoimmunity and Inflammation, Biomedical Research Foundation of the Academy of Athens, Athens, Greece boumpasd@uoc.gr.
Democritus University of Thrace · GRImmune Regulation (United Kingdom) · GBLaboratory of Molecular Genetics · PLNational and Kapodistrian University of Athens · GRUniversity Hospital of Alexandroupolis · GRUniversity of Crete · GRUniversity of Cyprus · CY

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesThe release of neutrophil extracellular traps (NETs) represents a novel neutrophil effector function in systemic lupus erythematosus (SLE) pathogenesis. However, the molecular mechanism underlying NET release and how NETs mediate end-organ injury in SLE remain elusive.

methodsNET formation and NET-related proteins were assessed in the peripheral blood and biopsies from discoid lupus and proliferative nephritis, using immunofluorescence, immunoblotting, quantitative PCR and ELISA. Autophagy was assessed by immunofluorescence and immunoblotting. The functional effects of NETs in vitro were assessed in a primary fibroblast culture.

resultsNeutrophils from patients with active SLE exhibited increased basal autophagy levels leading to enhanced NET release, which was inhibited in vitro by hydroxychloroquine. NETosis in SLE neutrophils correlated with increased expression of the stress-response protein REDD1. Endothelin-1 (ET-1) and hypoxia-inducible factor-1α (HIF-1α) were key mediators of REDD1-driven NETs as demonstrated by their inhibition with bosentan and L-ascorbic acid, respectively. SLE NETs were decorated with tissue factor (TF) and interleukin-17A (IL-17A), which promoted thrombin generation and the fibrotic potential of cultured skin fibroblasts. Notably, TF-bearing and IL-17A-bearing NETs were abundant in discoid skin lesions and in the glomerular and tubulointerstitial compartment of proliferative nephritis biopsy specimens.

conclusionsOur data suggest the involvement of REDD1/autophagy/NET axis in end-organ injury and fibrosis in SLE, a likely candidate for repositioning of existing drugs for SLE therapy. Autophagy-mediated release of TF-bearing and IL-17A-bearing NETs provides a link between thromboinflammation and fibrosis in SLE and may account for the salutary effects of hydroxychloroquine.

Indexed as

AutophagyCell Culture TechniquesExtracellular TrapsFibroblastsFibrosisHumansInflammationInterleukin-17Lupus Erythematosus, SystemicSignal TransductionThromboplastinThrombosisTranscription FactorsDDIT4 protein, humanIL17A protein, humanInterleukin-17ThromboplastinTranscription Factorsautophagyfibrosislupusneutrophilsthromboinflammation

Identifiers

PMID30563869
PMCPMC6352428
OpenAlexW2905380903

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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.