Evidence map›Paper›PMID 40545271›Full record

ArticleRMD open2025

Different rheumatoid factor binding patterns distinguish between Sjögren's disease with or without associated RA.

Nienke Oskam, Gwenny Verstappen, Ninotska I L Derksen, Pleuni Ooijevaar-de Heer, Hendrika Bootsma, Gertjan Wolbink, Frans Kroese, Theo Rispens

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Article in RMD open, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

What it found

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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

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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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

8 authors.

Nienke OskamDepartment of Immunopathology, Sanquin Research, Amsterdam, The Netherlands n.oskam@sanquin.nl.ORCID 0000-0001-5937-2608
Gwenny VerstappenDepartment of Rheumatology and Clinical Immunology, UMCG Groningen, Groningen, The Netherlands.
Ninotska I L DerksenDepartment of Immunopathology, Sanquin Research, Amsterdam, The Netherlands.
Pleuni Ooijevaar-de HeerDepartment of Immunopathology, Sanquin Research, Amsterdam, The Netherlands.
Hendrika BootsmaDepartment of Rheumatology and Clinical Immunology, UMCG Groningen, Groningen, The Netherlands.
Gertjan WolbinkReade, Amsterdam Rheumatology and Immunology Center, Amsterdam, The Netherlands.ORCID 0000-0003-1924-7460
Frans KroeseDepartment of Rheumatology and Clinical Immunology, UMCG Groningen, Groningen, The Netherlands.
Theo RispensDepartment of Immunopathology, Sanquin Research, Amsterdam, The Netherlands.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveRheumatoid arthritis (RA) and Sjögren's disease (SjD) are two rheumatic autoimmune diseases that commonly co-occur. Besides some overlap in clinical presentation, the two diseases share the frequent occurrence of rheumatoid factors (RF); autoantibodies targeting the constant region of IgG (IgG-Fc). We previously demonstrated that RFs of patients with RA or SjD have distinct reactivity profiles towards various epitopes on IgG-Fc, prompting the question of whether binding patterns in patients with RA-associated SjD (SjD-RA) would reflect either disease or a combination thereof.

methodsWe determined IgM- and IgA-RF levels against a selected set of RF targets that were developed to map preferential RF binding to specific epitopes. We assessed binding patterns among 14 patients with SjD-RA and compared these to patterns found among 28 patients with early RA and 152 patients with SjD.

resultsBoth IgM-RF and IgA-RF profiles of SjD-RA patients closely resemble those of RA patients and are distinctly different from those found among SjD patients. Furthermore, the presence and binding pattern of RF seems to be inherently linked to the presence of anti-SSA/Ro antibodies in patients with SjD.

conclusionsAnalysing RF binding patterns could help to distinguish SjD, SjD-RA, RA and contributes to a better understanding of the underlying immunological processes in a complex multidisorder setting.

Indexed as

Arthritis, RheumatoidRheumatoid FactorSjogren's SyndromeAdultAgedAutoantibodiesBiomarkersFemaleHumansImmunoglobulin AImmunoglobulin GImmunoglobulin MMaleMiddle AgedProtein BindingAutoantibodiesBiomarkersImmunoglobulin AImmunoglobulin GImmunoglobulin MRheumatoid FactorAutoantibodiesRheumatoid ArthritisRheumatoid FactorSjogren's Syndrome

Identifiers

PMID40545271
PMCPMC12184338

What Socratic 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 Socratic graph.