ArticleAnnals of the rheumatic diseases2006
Citrullinated fibrinogen detected as a soluble citrullinated autoantigen in rheumatoid arthritis synovial fluids.
Article in Annals of the rheumatic diseases, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 54 papers, 1 of them a synthesis that pooled 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.
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.
Who cites it
54 citing papers in PubMed, 1 synthesis or guideline pooled it, 121 citations in OpenAlex.
- Meta-analysis: diagnostic accuracy of the citrullinated peptides derived from fibrinogen and vimentin in rheumatoid arthritis.Clinical rheumatology · 2020Pooled it
- NLRP3 inflammasome promotes PAD2/PAD4 release and protein citrullination in rheumatoid arthritis.Communications biology · 2026Article
- Presence of autoantibodies targeting the shared epitope in rheumatoid arthritis and psoriatic arthritis.Frontiers in immunology · 2026Article
- Noninvasive Fibrin Targeting Colloid-Mediated Intra-Articular Repair.Journal of biomedical materials research. Part A · 2025Article
- Exploring Anticitrullinated Antibodies (ACPAs) and Serum-Derived Exosomes Cargoes.Antibodies (Basel, Switzerland) · 2025Article
- Citrullinated and malondialdehyde-acetaldehyde-modified fibrinogen activates macrophages and promotes profibrotic responses in human lung fibroblasts.American journal of physiology. Lung cellular and molecular physiology · 2025Article
- Antibodies to Malondialdehyde-Acetaldehyde Adduct Are Associated With Prevalent and Incident Rheumatoid Arthritis-Associated Interstitial Lung Disease in US Veterans.Arthritis & rheumatology (Hoboken, N.J.) · 2024Article
- The monocyte cell surface is a unique site of autoantigen generation in rheumatoid arthritis.Proceedings of the National Academy of Sciences of the United States of America · 2024Article
- Article
- Autoantigen Discovery in the Hair Loss Disorder, Alopecia Areata: Implication of Post-Translational Modifications.Frontiers in immunology · 2022Review
- Citrullination and PAD Enzyme Biology in Type 1 Diabetes - Regulators of Inflammation, Autoimmunity, and Pathology.Frontiers in immunology · 2021Review
- Article
- Biomarkers to Personalize the Treatment of Rheumatoid Arthritis: Focus on Autoantibodies and Pharmacogenetics.Biomolecules · 2020Review
- Review
- Infectious Triggers in Periodontitis and the Gut in Rheumatoid Arthritis (RA): A Complex Story About Association and Causality.Frontiers in immunology · 2020Review
- Antibodies to synthetic citrullinated peptide epitope correlate with disease activity and flares in rheumatoid arthritis.PloS one · 2020Article
- Detection of Citrullinated Fibrin in Plasma Clots of Rheumatoid Arthritis Patients and Its Relation to Altered Structural Clot Properties, Disease-Related Inflammation and Prothrombotic Tendency.Frontiers in immunology · 2020Article
- The structure, specificity and function of anti-citrullinated protein antibodies.Nature reviews. Rheumatology · 2019Review
- Article
- Epitope Specificity of Anti-Citrullinated Protein Antibodies.Antibodies (Basel, Switzerland) · 2017Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundAnti-citrullinated protein antibodies (ACPA) are specifically and frequently detected in sera of patients with rheumatoid arthritis (RA). Citrullinated fibrin or fibrinogen is a candidate autoantigen of such antibodies.
objectiveTo investigate the presence of citrullinated fibrinogen (cFBG) in the plasma or synovial fluid of patients with RA and control patients, and to determine cFBG levels and their relationship with serum markers for RA if it is present.
methodsA sandwich enzyme linked immunosorbent assay (ELISA) to measure cFBG was established using monoclonal antibodies cF16.1 and cF252.1, generated by immunising mice with R16Cit and R252Cit, the fibrinogen Aalpha chain derived sequences with citrulline at position 16 and 252, respectively, and the presence of cFBG was further investigated with immunoprecipitation-western blotting.
resultsPositive signals were detected in 11/15 RA synovial fluids (RASFs), but not in osteoarthritis synovial fluids or RA plasma with sandwich ELISA for cFBG using cF16.1 and an anti-modified citrulline (AMC) antibody. The presence of cFBG in RASFs was confirmed by immunoprecipitation-western blotting. Furthermore, most RA sera strongly reacted against R16Cit. No relationship was seen between RASF cFBG levels and C reactive protein or anti-cyclic citrullinated peptide antibody levels of the paired sera.
conclusioncFBG is detected as a soluble citrullinated autoantigen in RASFs and may therefore be a genuine candidate antigen for ACPA in patients with RA.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.