Evidence map›Paper›PMID 41881023›Full record

ArticleCell reports. Medicine2026

Transfer of IgG from long COVID patients induces symptomology in mice.

Hung-Jen Chen, Brent Appelman, Hanneke L D M Willemen, Amelie Bos, Judith Prado, W Ashwin Mak, Noa Keijzer, Patrícia Silva Santos Ribeiro, Sara Vieira Goncalves, Sabine Versteeg and 13 more

Abstract read
In one paragraph

Article in Cell reports. Medicine, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

29 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  5. Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. Review
  13. Long COVID: current research and future directions.Infectious diseases & immunity · 2025
    Review
  14. Article
  15. Review
  16. Neuroimmune pathophysiology of long COVID.Psychiatry and clinical neurosciences · 2025
    Review
  17. Review
  18. Review
  19. Article
  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

23 authors.

Hung-Jen ChenCenter for Infection and Molecular Medicine, Amsterdam Institute for Infection and Immunity, Amsterdam University Medical Center, location AMC, Amsterdam, the Netherlands.
Brent AppelmanCenter for Infection and Molecular Medicine, Amsterdam Institute for Infection and Immunity, Amsterdam University Medical Center, location AMC, Amsterdam, the Netherlands.
Hanneke L D M WillemenCenter for Translational Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands.
Amelie BosCenter for Infection and Molecular Medicine, Amsterdam Institute for Infection and Immunity, Amsterdam University Medical Center, location AMC, Amsterdam, the Netherlands.
Judith PradoCenter for Translational Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands.
W Ashwin MakCenter for Infection and Molecular Medicine, Amsterdam Institute for Infection and Immunity, Amsterdam University Medical Center, location AMC, Amsterdam, the Netherlands.
Noa KeijzerCenter for Infection and Molecular Medicine, Amsterdam Institute for Infection and Immunity, Amsterdam University Medical Center, location AMC, Amsterdam, the Netherlands.
Patrícia Silva Santos RibeiroCenter for Translational Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands.
Sara Vieira GoncalvesCenter for Translational Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands.
Sabine VersteegCenter for Translational Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands.
Chiara E GeyerCenter for Infection and Molecular Medicine, Amsterdam Institute for Infection and Immunity, Amsterdam University Medical Center, location AMC, Amsterdam, the Netherlands.
Mads LarsenDepartment of Experimental Immunohematology, Sanquin Research, Amsterdam, the Netherlands.
Eline SchüchnerCenter for Infection and Molecular Medicine, Amsterdam Institute for Infection and Immunity, Amsterdam University Medical Center, location AMC, Amsterdam, the Netherlands.
Marije K BomersDepartment of Infectious Diseases, Amsterdam Institute for Infection and Immunity, Amsterdam University Medical Centers, location VUMC, Amsterdam, the Netherlands.
Ayesha H A LavellDepartment of Infectious Diseases, Amsterdam Institute for Infection and Immunity, Amsterdam University Medical Centers, location VUMC, Amsterdam, the Netherlands.
Amsterdam UMC COVID-19 biobank
Braeden CharltonFaculty of Behavioral and Movement Sciences, Vrije Universiteit, Amsterdam, the Netherlands.
Rob WüstFaculty of Behavioral and Movement Sciences, Vrije Universiteit, Amsterdam, the Netherlands.
W Joost WiersingaCenter for Infection and Molecular Medicine, Amsterdam Institute for Infection and Immunity, Amsterdam University Medical Center, location AMC, Amsterdam, the Netherlands.
Michèle van VugtCenter for Infection and Molecular Medicine, Amsterdam Institute for Infection and Immunity, Amsterdam University Medical Center, location AMC, Amsterdam, the Netherlands.
Gestur VidarssonDepartment of Experimental Immunohematology, Sanquin Research, Amsterdam, the Netherlands.
Niels EijkelkampCenter for Translational Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands. Electronic address: n.eijkelkamp@umcutrecht.nl.
Jeroen den DunnenCenter for Infection and Molecular Medicine, Amsterdam Institute for Infection and Immunity, Amsterdam University Medical Center, location AMC, Amsterdam, the Netherlands.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

SARS-CoV-2 infections have led to a surge in long COVID, a post-infectious syndrome in which autoantibodies are proposed to play a pathogenic role, analogous to fibromyalgia. Here, we test this hypothesis by transferring total IgG from long COVID patients into mice. We stratified patients into three subgroups using plasma levels of glial fibrillary acidic protein (GFAP), neurofilament light chain (NFL), and interferon-β, with subgroup-specific pathways supported by plasma proteomics. Transfer of pooled total IgG induces pronounced and persistent mechanical hypersensitivity. Notably, IgG collected 2 years later from the same long COVID patients who remained symptomatic reproduced mechanical allodynia in mice, demonstrating longitudinal stability of pathogenic activity. Proteome-wide autoantibody profiling identifies elevated, subgroup-linked autoreactivities that persist over time and are validated by independent assays. Together, these findings demonstrate that long COVID IgG can induce mechanical hypersensitivity in mice, support a causal role for autoantibodies in long COVID pathogenesis, and may establish a murine model for therapeutic development.

Indexed as

COVID-19Immunoglobulin GAnimalsAutoantibodiesDisease Models, AnimalFemaleGlial Fibrillary Acidic ProteinHumansHyperalgesiaInterferon-betaMaleMiceMice, Inbred C57BLPost-Acute COVID-19 SyndromeSARS-CoV-2AutoantibodiesGlial Fibrillary Acidic ProteinImmunoglobulin GInterferon-betaautoantibodiesIgG transferlocomotor activitylong COVIDmouse model for long COVIDneuroinflammationpainPASCpost-COVID syndromesensory hypersensitivitytype-I interferon

Identifiers

PMID41881023
PMCPMC13130648

What OpenQuestion holds

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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.