Evidence map›Paper›PMID 38365843›Full record

ArticleArthritis research & therapy2024

Regulatory T and B cells in pediatric Henoch-Schönlein purpura: friends or foes?

Anne Filleron, Renaud Cezar, Marc Fila, Nastassja Protsenko, Kathleen Van Den Hende, Eric Jeziorski, Bob Occean, Thierry Chevallier, Pierre Corbeau, Tu Anh Tran

Open access · goldAbstract read
In one paragraph

Article in Arthritis research & therapy, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
2.5field-weighted citation impact, top 11% 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

5 citing papers in PubMed, 6 citations in OpenAlex.

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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 at 6 institutions in 1 country.

Anne FilleronIRMB, Montpellier University, INSERM U1183, Montpellier, France.
Renaud CezarIRMB, Montpellier University, INSERM U1183, Montpellier, France.
Marc FilaDepartment of Pediatric Nephrology, Montpellier University Hospital, Montpellier University, Montpellier, France.
Nastassja ProtsenkoDepartment of Pediatrics, Nîmes University Hospital, Montpellier University, Service de Pédiatrie, Place du Pr R. Debré, 30029, Nîmes Cedex 9, France.
Kathleen Van Den HendeDepartment of Pediatrics, Nîmes University Hospital, Montpellier University, Service de Pédiatrie, Place du Pr R. Debré, 30029, Nîmes Cedex 9, France.
Eric JeziorskiDepartment of Pediatric Infectious Diseases, Montpellier University Hospital, Univ Montpellier, INSERM, EFS, Univ Antilles, Montpellier, France.
Bob OcceanDepartment of Epidemiology, Medical Statistics and Public Health, Nîmes University Hospital, Montpellier University, Nîmes, France.
Thierry ChevallierDepartment of Epidemiology, Medical Statistics and Public Health, Nîmes University Hospital, Montpellier University, Nîmes, France.
Pierre CorbeauDepartment of Immunology, Nîmes University Hospital, Montpellier University, Nîmes, France.
Tu Anh TranIRMB, Montpellier University, INSERM U1183, Montpellier, France. tu.anh.tran@chu-nimes.fr.
Université de Montpellier · FRUniversité de Nîmes · FRCentre Hospitalier Universitaire de Montpellier · FRCentre National de la Recherche Scientifique · FRInserm · FRInstitute for Neurosciences of Montpellier · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND AND

objectivesHenoch-Schönlein purpura (HSP) is the most common immunoglobulin A-mediated systemic vasculitis in childhood. We studied immune dysregulation in HSP by analyzing regulatory T (Treg), T helper 3 (Th3), and regulatory B cell (Breg) subpopulations that might intervene in immune activation, IgA production, and HSP clinical manifestations.

methodsThis prospective study included 3 groups of children: 30 HSP on acute phase, 30 HSP on remission, and 40 healthy controls (HCs) matched on age. Treg, Breg, and Th3 were analyzed by flow cytometry. Serum immunoglobulin and cytokine levels were quantified by ELISA and Luminex.

resultsTreg frequencies were higher in acute HSP than in remitting HSP and HCs (6.53% [4.24; 9.21] vs. 4.33% [3.6; 5.66], p = 0.002, and vs. 4.45% [3.01; 6.6], p = 0.003, respectively). Activated Th3 cells (FoxP3 + Th3 cells) tend to be more abundant in HSP than in HCs (78.43% [50.62; 80.84] vs. 43.30% [40.20; 49.32], p = 0.135). Serum IgA, IL-17, and latency-associated peptide (a marker of the anti-inflammatory cytokine TGF-beta production) were significantly and inflammatory cytokines TNF-alpha, IL-1-beta, and IL-6 were non-significantly higher in HSP than HCs. Bregs were identical between the groups, but, in patients with renal impairment, Breg percentage was lower compared to those without. Treg removal in PBMC culture resulted in an increase in IgA production in HSP proving a negative regulatory role of Tregs on IgA production.

conclusionsIn pediatric HSP, immune activation persists in spite of an increase in Th3 and Tregs. Th3 could be involved in IgA hyperproduction, inefficiently downregulated by Tregs. Lack of Bregs appears linked to renal impairment.

Indexed as

IgA VasculitisChildCytokinesHumansImmunoglobulin ALeukocytes, MononuclearProspective StudiesCytokinesImmunoglobulin ACytokinesIgA vasculitisKidney diseaseRegulatory B cellsRegulatory T cellsT helper 3 cell

Identifiers

PMID38365843
PMCPMC10870453
OpenAlexW4391881037

What OpenQuestion holds

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LicenceCC BY
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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.