Evidence map›Paper›PMID 40270010›Full record

ArticleArthritis research & therapy2025

Divergent gene signatures and neutrophil enrichment in lymph nodes of inflammatory arthritis patients.

Aoife M O'Byrne, Janne W Bolt, Chaja M J van Ansenwoude, Martijn van der Heijde, Johanna F Semmelink, Aldo Jongejan, Perry D Moerland, Mario Maas, Marleen G H van de Sande, Lisa G M van Baarsen

Abstract read
In one paragraph

Article in Arthritis research & therapy, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
–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. Observational
  2. Review
  3. Article
  4. Observational
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.

Aoife M O'Byrne *Amsterdam UMC, Department of Rheumatology & Clinical Immunology, University of Amsterdam, Amsterdam, The Netherlands.
Janne W Bolt *Amsterdam UMC, Department of Rheumatology & Clinical Immunology, University of Amsterdam, Amsterdam, The Netherlands.
Chaja M J van AnsenwoudeAmsterdam UMC, Department of Rheumatology & Clinical Immunology, University of Amsterdam, Amsterdam, The Netherlands.
Martijn van der HeijdeAmsterdam UMC, Department of Rheumatology & Clinical Immunology, University of Amsterdam, Amsterdam, The Netherlands.
Johanna F SemmelinkAmsterdam UMC, Department of Rheumatology & Clinical Immunology, University of Amsterdam, Amsterdam, The Netherlands.
Aldo JongejanAmsterdam UMC, Department of Experimental Immunology, University of Amsterdam, Amsterdam, The Netherlands.
Perry D MoerlandAmsterdam UMC, Department of Experimental Immunology, University of Amsterdam, Amsterdam, The Netherlands.
Mario MaasAmsterdam UMC, Department of Radiology, University of Amsterdam, Amsterdam, The Netherlands.
Marleen G H van de Sande *Amsterdam UMC, Department of Rheumatology & Clinical Immunology, University of Amsterdam, Amsterdam, The Netherlands.
Lisa G M van Baarsen *Amsterdam UMC, Department of Rheumatology & Clinical Immunology, University of Amsterdam, Amsterdam, The Netherlands. e.g.vanbaarsen@amsterdamumc.nl.

Funding

Horizon 2020 101007757Horizon 2020 847551Nederlandse Organisatie voor Wetenschappelijk Onderzoek 916.12.109
6 · The paper itself

Abstract

backgroundLymph node (LN) studies in anti-cyclic citrullinated protein antibodies (ACPA) positive rheumatoid arthritis (RA) patients have revealed notable alterations in adaptive immune cell populations. However, it remains unclear whether similar changes occur in seronegative inflammatory arthritis, such as psoriatic arthritis (PsA) or ACPA-negative RA. This study investigates molecular and cellular alterations in LN biopsies from ACPA-positive RA patients, ACPA-negative inflammatory arthritis (IA) patients, and healthy controls (HCs).

methodsUltrasound-guided LN biopsies were collected from 25 HCs, 14 ACPA positive RA patients and 45 ACPA negative IA patients (including various IA subtypes). Whole LN tissue biopsies were analyzed by transcriptome analyses, quantitative PCR and immunohistochemistry.

resultsDistinct LN gene expression profiles were identified in ACPA-positive RA and ACPA-negative IA patients compared to HCs. ACPA-positive RA patients exhibited upregulation of genes associated with adaptive immunity, while ACPA-negative IA patients showed higher expression of genes related to innate immune cell function. Subsequent qPCR analysis confirmed increased mRNA expression of Cathepsin G, a serine protease highly expressed by neutrophils, in ACPA negative IA patients. Immunohistochemistry demonstrated significantly elevated CD15 + neutrophil presence in LNs from IA patients compared to HCs, irrespective of ACPA status and diagnosis (RA or PsA).

conclusionsThis study provides novel insights into the immune landscape of lymph nodes in inflammatory arthritis, emphasizing an unexpected role for neutrophils in IA patients. Future research should explore the functional implications of neutrophils within these uninfected lymph nodes to better understand their contribution to the pathogenesis of inflammatory arthritis.

Indexed as

Arthritis, RheumatoidLymph NodesNeutrophilsTranscriptomeAdultAgedAnti-Citrullinated Protein AntibodiesFemaleGene Expression ProfilingHumansImmunohistochemistryMaleMiddle AgedAnti-Citrullinated Protein AntibodiesInflammatory arthritisLymph nodesNeutrophilsPathogenesis

Identifiers

PMID40270010
PMCPMC12016067

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.