Evidence map›Paper›PMID 34685525›Full record

ArticleCells2021

Neutrophil Extracellular Traps Contribute to COVID-19 Hyperinflammation and Humoral Autoimmunity.

Jiram Torres-Ruiz, Abdiel Absalón-Aguilar, Miroslava Nuñez-Aguirre, Alfredo Pérez-Fragoso, Daniel Alberto Carrillo-Vázquez, José Luis Maravillas-Montero, Nancy R Mejía-Domínguez, Luis Llorente, Beatriz Alcalá-Carmona, Jaquelin Lira-Luna and 6 more

Open access · goldAbstract read
In one paragraph

Article in Cells, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 46 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
46citing papers in PubMed, 2 pooled it
3.9field-weighted citation impact, top 5% 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

46 citing papers in PubMed, 2 syntheses or guidelines pooled it, 64 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Review
  4. Article
  5. Review
  6. Review
  7. Article
  8. Article
  9. NETosis: A key player in autoimmunity, COVID-19, and long COVID.Journal of translational autoimmunity · 2025
    Review
  10. Neutrophils and NETs in kidney disease.Nature reviews. Nephrology · 2025
    Review
  11. Review
  12. Article
  13. Article
  14. Review
  15. Review
  16. Article
  17. Article
  18. Article
  19. Extracellular Vesicles: The Invisible Heroes and Villains of COVID-19 Central Neuropathology.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2024
    Review
  20. 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

16 authors at 2 institutions in 1 country.

Jiram Torres-RuizDepartment of Immunology and Rheumatology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City 14080, Mexico.
Abdiel Absalón-AguilarDepartment of Immunology and Rheumatology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City 14080, Mexico.
Miroslava Nuñez-AguirreDepartment of Immunology and Rheumatology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City 14080, Mexico.
Alfredo Pérez-FragosoDepartment of Immunology and Rheumatology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City 14080, Mexico.
Daniel Alberto Carrillo-VázquezDepartment of Internal Medicine, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City 14080, Mexico.ORCID 0000-0002-9417-8867
José Luis Maravillas-MonteroRed de Apoyo a la Investigacion, Coordinacion de Investigación Científica, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico.ORCID 0000-0003-3755-662X
Nancy R Mejía-DomínguezRed de Apoyo a la Investigacion, Coordinacion de Investigación Científica, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico.
Luis LlorenteDepartment of Immunology and Rheumatology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City 14080, Mexico.ORCID 0000-0002-3464-3747
Beatriz Alcalá-CarmonaDepartment of Immunology and Rheumatology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City 14080, Mexico.
Jaquelin Lira-LunaDepartment of Immunology and Rheumatology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City 14080, Mexico.ORCID 0000-0001-7601-3826
Carlos Núñez-ÁlvarezDepartment of Immunology and Rheumatology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City 14080, Mexico.
Guillermo Juárez-VegaRed de Apoyo a la Investigacion, Coordinacion de Investigación Científica, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico.
David Meza-SánchezRed de Apoyo a la Investigacion, Coordinacion de Investigación Científica, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico.
Thierry Hernández-GilsoulEmergency Medicine Department, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City 14080, Mexico.
Miguel Tapia-RodríguezMicroscopy Unit, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico.ORCID 0000-0002-2248-6596
Diana Gómez-MartínDepartment of Immunology and Rheumatology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City 14080, Mexico.
Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán · MXUniversidad Nacional Autónoma de México · MX

Funding

Consejo Nacional de Ciencia y Tecnología 313252, F0005-2020-01
6 · The paper itself

Abstract

The coronavirus disease 2019 (COVID-19) is related to enhanced production of NETs, and autoimmune/autoinflammatory phenomena. We evaluated the proportion of low-density granulocytes (LDG) by flow cytometry, and their capacity to produce NETs was compared with that of conventional neutrophils. NETs and their protein cargo were quantified by confocal microscopy and ELISA. Antinuclear antibodies (ANA), anti-neutrophil cytoplasmic antibodies (ANCA) and the degradation capacity of NETs were addressed in serum. MILLIPLEX assay was used to assess the cytokine levels in macrophages' supernatant and serum. We found a higher proportion of LDG in severe and critical COVID-19 which correlated with severity and inflammatory markers. Severe/critical COVID-19 patients had higher plasmatic NE, LL-37 and HMGB1-DNA complexes, whilst ISG-15-DNA complexes were lower in severe patients. Sera from severe/critical COVID-19 patients had lower degradation capacity of NETs, which was reverted after adding hrDNase. Anti-NET antibodies were found in COVID-19, which correlated with ANA and ANCA positivity. NET stimuli enhanced the secretion of cytokines in macrophages. This study unveils the role of COVID-19 NETs as inducers of pro-inflammatory and autoimmune responses. The deficient degradation capacity of NETs may contribute to the accumulation of these structures and anti-NET antibodies are related to the presence of autoantibodies.

Indexed as

AutoimmunityImmunity, HumoralInflammationAntibodies, AntinuclearAntimicrobial Cationic PeptidesAutoantibodiesCathelicidinsCOVID-19Cross-Sectional StudiesCytokinesExtracellular TrapsFlow CytometryGranulocytesHealthy VolunteersHMGB1 ProteinHumansAntibodies, AntinuclearAntimicrobial Cationic PeptidesAutoantibodiesCathelicidinsCytokinesHMGB1 ProteinHMGB1 protein, humanISG15 protein, humanUbiquitinsCOVID-19DNA-complexDNase and autoimmunityHMGB1ISG-15LDGLL-37NETsSARS-CoV-2

Identifiers

PMID34685525
PMCPMC8533917
OpenAlexW3201830560

What OpenQuestion holds

Textmetadata
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.