Evidence map›Paper›PMID 41280901›Full record

ArticleFrontiers in immunology2025

Transcriptome analysis of classical blood cells reveals downregulation of pro-inflammatory genes in the classical monocytes of long COVID patients.

Florian Fricke, Franz Mai, Christine Wossidlo, Felix Steinbeck, Wendy Bergmann-Ewert, Marcel Kordt, Karin Kraft, Britta Müller, Emil C Reisinger, Brigitte Müller-Hilke

Abstract read
In one paragraph

Article in Frontiers in immunology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
4citing 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

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

  1. Pooled it
  2. Article
  3. Induction of dysfunctional CD14Frontiers in immunology · 2026
    Article
  4. 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

10 authors.

Florian FrickeCore Facility for Cell Sorting and Cell Analysis, University Medical Center Rostock, Rostock, Germany.
Franz MaiCore Facility for Cell Sorting and Cell Analysis, University Medical Center Rostock, Rostock, Germany.
Christine WossidloDepartment of Tropical Medicine and Infectious Diseases,University of Rostock, Rostock, Germany.
Felix SteinbeckCore Facility for Cell Sorting and Cell Analysis, University Medical Center Rostock, Rostock, Germany.
Wendy Bergmann-EwertCore Facility for Cell Sorting and Cell Analysis, University Medical Center Rostock, Rostock, Germany.
Marcel KordtCore Facility for Cell Sorting and Cell Analysis, University Medical Center Rostock, Rostock, Germany.
Karin KraftChair of Naturopathy, University Medicine Rostock, Rostock, Germany.
Britta MüllerInstitute of Medical Psychology and Medical Sociology, Rostock University Medical Centre, Rostock, Germany.
Emil C ReisingerDepartment of Tropical Medicine and Infectious Diseases,University of Rostock, Rostock, Germany.
Brigitte Müller-HilkeCore Facility for Cell Sorting and Cell Analysis, University Medical Center Rostock, Rostock, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Introduction: Despite extensive research, the pathogenesis and predispositions underlying long COVID (long-term coronavirus disease 2019) remain poorly understood. Methods: To address this, we analyzed the immunological landscapes of 44 patients with long COVID and 44 matched convalescents using single-cell RNA sequencing (scRNA-seq) of peripheral blood mononuclear cells (PBMCs) and validated the findings with plasma cytokine measurements via Luminex technology. Results: While the immune cell compositions showed minimal quantitative differences only among natural killer (NK) cells, the transcriptome analyses identified distinct gene expression patterns, particularly in classical monocytes: patients with long COVID exhibited downregulation of the inflammation-associated genes, including Discussion: These findings show that monocytes might be dysregulated and/or exhausted in patients with long COVID.

Indexed as

COVID-19MonocytesSARS-CoV-2TranscriptomeAdultAgedCytokinesDown-RegulationFemaleGene Expression ProfilingHumansInflammationLeukocytes, MononuclearMaleMiddle AgedSingle-Cell AnalysisCytokinesimmune landscapeimmune tolerancelong COVIDmonocytesSARS-CoV-2scRNAseq

Identifiers

PMID41280901
PMCPMC12634634

What OpenQuestion holds

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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.