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Mongin D, Pagano S, Lamacchia C, Juillard C, Antinori-Malaspina P, Dan D, Ciurea A, Möller B, Gabay C, Finckh A, Vuilleumier N. Anti-apolipoprotein A-1 IgG, incident cardiovascular events, and lipid paradox in rheumatoid arthritis. Front Cardiovasc Med 2024; 11:1386192. [PMID: 38832312 PMCID: PMC11144907 DOI: 10.3389/fcvm.2024.1386192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Accepted: 04/24/2024] [Indexed: 06/05/2024] Open
Abstract
Objective To validate the prognostic accuracy of anti-apolipoprotein A-1 (AAA1) IgG for incident major adverse cardiovascular (CV) events (MACE) in rheumatoid arthritis (RA) and study their associations with the lipid paradox at a multicentric scale. Method Baseline AAA1 IgG, lipid profile, atherogenic indexes, and cardiac biomarkers were measured on the serum of 1,472 patients with RA included in the prospective Swiss Clinical Quality Management registry with a median follow-up duration of 4.4 years. MACE was the primary endpoint defined as CV death, incident fatal or non-fatal stroke, or myocardial infarction (MI), while elective coronary revascularization (ECR) was the secondary endpoint. Discriminant accuracy and incidence rate ratios (IRR) were respectively assessed using C-statistics and Poisson regression models. Results During follow-up, 2.4% (35/1,472) of patients had a MACE, consisting of 6 CV deaths, 11 MIs, and 18 strokes; ECR occurred in 2.1% (31/1,472) of patients. C-statistics indicated that AAA1 had a significant discriminant accuracy for incident MACE [C-statistics: 0.60, 95% confidence interval (95% CI): 0.57-0.98, p = 0.03], mostly driven by CV deaths (C-statistics: 0.77; 95% CI: 0.57-0.98, p = 0.01). IRR indicated that each unit of AAA1 IgG increase was associated with a fivefold incident CV death rate, independent of models' adjustments. At the predefined and validated cut-off, AAA1 displayed negative predictive values above 97% for MACE. AAA1 inversely correlated with total and HDL cholesterol. Conclusions AAA1 independently predicts CV deaths, and marginally MACE in RA. Further investigations are requested to ascertain whether AAA1 could enhance CV risk stratification by identifying patients with RA at low CV risk.
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Affiliation(s)
- Denis Mongin
- Division of Rheumatology, Geneva University Hospital and Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Sabrina Pagano
- Division of Laboratory Medicine, Department of Diagnostics and of Medical Specialties, Geneva University Hospitals and Geneva University, Geneva, Switzerland
| | - Celine Lamacchia
- Division of Rheumatology, Geneva University Hospital and Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Catherine Juillard
- Division of Laboratory Medicine, Department of Diagnostics and of Medical Specialties, Geneva University Hospitals and Geneva University, Geneva, Switzerland
| | - Paola Antinori-Malaspina
- Division of Laboratory Medicine, Department of Diagnostics and of Medical Specialties, Geneva University Hospitals and Geneva University, Geneva, Switzerland
| | - Diana Dan
- Division of Rheumatology, Lausanne University Hospital and Faculty of Medicine, University of Lausanne, Lausanne, Switzerland
| | - Adrian Ciurea
- Division of Rheumatology, Zurich University Hospital and Faculty of Medicine, University of Zurich, Zurich, Switzerland
| | - Burkhard Möller
- Division of Rheumatology and Immunology, Bern University Hospital and Faculty of Medicine, University of Bern, Bern, Switzerland
| | - Cem Gabay
- Division of Rheumatology, Geneva University Hospital and Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Axel Finckh
- Division of Rheumatology, Geneva University Hospital and Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Nicolas Vuilleumier
- Division of Laboratory Medicine, Department of Diagnostics and of Medical Specialties, Geneva University Hospitals and Geneva University, Geneva, Switzerland
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Dong R, Sun Y, Xu W, Xiang W, Li M, Yang Q, Zhu L, Ma Z. Distribution and clinical significance of anti-carbamylation protein antibodies in rheumatological diseases among the Chinese Han population. Front Immunol 2023; 14:1197458. [PMID: 37539050 PMCID: PMC10394697 DOI: 10.3389/fimmu.2023.1197458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 07/03/2023] [Indexed: 08/05/2023] Open
Abstract
Objective Several studies have demonstrated that anti-carbamylation protein antibodies (Anti-CarPA) are persistent in patients with rheumatoid arthritis (RA), systemic lupus erythematosus (SLE), systemic sclerosis (SSC), primary Sjögren's syndrome (pSS), and interstitial lung disease associated with RA (RA-ILD). However, the relationship between anti-CarPA and other rheumatic diseases (RDs) and non-RA-ILD is not known till now. This study sought to examine the presence of anti-CarPA in Chinese Han patients with RDs and its clinical significance. Methods The study included 90 healthy controls (HCs) and 300 patients with RDs, including RA, SLE, polymyositis/dermatomyositis (PM/DM), pSS, SSC, spondyloarthritis (SpA), anti-neutrophil cytoplasmic autoantibodies associated with vasculitis (AAV), undifferentiated connective tissue disease (UCTD), and Behcet's disease (BD). Antibodies against carbamylated human serum albumin were detected using commercial enzyme-linked immunosorbent assay kits. Correlations between clinical and laboratory parameters were analyzed. Result Serum levels of anti-CarPA in RA (34.43 ± 33.34 ng/ml), SLE (21.12 ± 22.23 ng/ml), pSS (16.32 ± 13.54 ng/ml), PM/DM (30.85 ± 17.34 ng/ml), SSC (23.53 ± 10.70 ng/ml), and UCTD (28.35 ± 21.91 ng/ml) were higher than those of anti-CarPA in the HCs (7.30 ± 5.05 ng/ml). The concentration of serum anti-CarPA was higher in patients with rheumatic disease-related interstitial lung disease (RD-ILD), especially RA-ILD, PM/DM-ILD, and pSS-ILD. Patients with RD-ILD who tested positive for anti-CarPA were more likely to have a more severe radiographic classification (grades II, p = 0.045; grades III, p = 0.003). Binary logistic regression analysis suggested that anti-CarPA had an association with ILD in RA (p = 0.033), PM/DM (p = 0.039), and pSS (p = 0.048). Based on receiver operating characteristics (ROC) analysis, anti-CarPA cutoffs best discriminated ILD in RA (>32.59 ng/ml, p = 0.050), PM/DM (>23.46 ng/ml, p = 0.038), and pSS (>37.08 ng/ml, p = 0.040). Moreover, serum levels of anti-CarPA were correlated with antibodies against transcription intermediary factor 1 complex (anti-TIF1) (R = -0.28, p = 0.044), antibodies against glycyl-transfer ribonucleic acid synthetase (anti-EJ) (R = 0.30, p = 0.031), and antibodies against melanoma differentiation-associated gene 5 (anti-MDA5) (R = 0.35, p = 0.011). Conclusion Serum anti-CarPA could be detected in patients with RA, PM/DM, pSS, SSC, and UCTD among the Chinese Han population. And it may also assist in identifying ILD in patients with RA, PM/DM, and pSS, which emphasized attention to the lung involvement in anti-CarPA-positive patients.
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Affiliation(s)
- Rongrong Dong
- Department of Rheumatology and Immunology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Yuanyuan Sun
- Department of Respiratory and Critical Care Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - Wei Xu
- Department of Rheumatology and Immunology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Weizhen Xiang
- Department of Rheumatology and Immunology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Meiqi Li
- Department of Rheumatology and Immunology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - Qingrui Yang
- Department of Rheumatology and Immunology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Department of Rheumatology and Immunology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - Ling Zhu
- Department of Respiratory and Critical Care Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - Zhenzhen Ma
- Department of Rheumatology and Immunology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Department of Rheumatology and Immunology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
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Palterer B, Vitiello G, Del Carria M, D'Onofrio B, Martinez-Prat L, Mahler M, Cammelli D, Parronchi P. Anti-protein arginine deiminase antibodies are distinctly associated with joint and lung involvement in rheumatoid arthritis. Rheumatology (Oxford) 2023; 62:2410-2417. [PMID: 36440916 DOI: 10.1093/rheumatology/keac667] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Accepted: 11/04/2022] [Indexed: 07/20/2023] Open
Abstract
OBJECTIVES RA is a chronic inflammatory disease in which possible interstitial lung disease (ILD) is an extra-articular manifestation that carries significant morbidity and mortality. RF and ACPA are included in the RA classification criteria but prognostic and diagnostic biomarkers for disease endotyping and RA-ILD are lacking. Anti-protein arginine deiminase antibodies (anti-PAD) are a novel class of autoantibodies identified in RA. This study aimed to assess clinical features, ACPA and anti-PAD antibodies in RA patients with articular involvement and ILD. METHODS We retrospectively collected joint erosions, space narrowing, clinical features and lung involvement of a cohort of 71 patients fulfilling the 2010 ACR/EULAR RA classification criteria. Serum samples from these patients were tested for ACPA IgG (QUANTA Flash CCP3), and anti-PAD3 and anti-PAD4 IgG, measured with novel assays based on a particle-based multi-analyte technology (PMAT). RESULTS Anti-PAD4 antibodies were significantly associated with radiographic injury (P = 0.027) and erosions (P = 0.02). Similarly, ACPA levels were associated with erosive disease (P = 0.014). Anti-PAD3/4 double-positive patients displayed more joint erosions than patients with anti-PAD4 antibodies only or negative for both (P = 0.014 and P = 0.037, respectively). RA-ILD (15.5%, 11/71 patients) was associated with older age (P < 0.001), shorter disease duration (P = 0.045) and less erosive disease (P = 0.0063). ACPA were elevated in RA-ILD, while anti-PAD4 were negatively associated (P = 0.043). CONCLUSION Anti-PAD4 and anti-PAD3 antibodies identify RA patients with higher radiographic injury and bone erosions. In our cohort, ILD is associated with lower radiographic and erosive damage, as well as low levels of anti-PAD4 antibodies.
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Affiliation(s)
- Boaz Palterer
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Gianfranco Vitiello
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Marco Del Carria
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Bernardo D'Onofrio
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
- Department of Internal Medicine and Therapeutics, University of Pavia, Pavia, Italy
| | | | | | - Daniele Cammelli
- Dipartimento Medico-Geriatrico, SOD Immunoallergologia, AOU Careggi, Florence, Italy
| | - Paola Parronchi
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
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Trier NH, Houen G. Anti-citrullinated protein antibodies as biomarkers in rheumatoid arthritis. Expert Rev Mol Diagn 2023; 23:895-911. [PMID: 37578277 DOI: 10.1080/14737159.2023.2247986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 07/15/2023] [Accepted: 08/10/2023] [Indexed: 08/15/2023]
Abstract
INTRODUCTION The serological biomarker anti-citrullinated protein antibodies (ACPAs) may have several functions but is especially important for the diagnosis of rheumatoid arthritis (RA) along with clinical symptoms. AREAS COVERED This review provides an overview of ACPAs, which are useful in RA diagnostics and may improve our understanding of disease etiology. PubMed was searched with combinations of words related to antibodies recognizing epitopes containing the post-translationally modified amino acid citrulline in combination with rheumatoid arthritis; cyclic citrullinated peptide, CCP, anti-CCP, anti-citrullinated protein antibodies, ACPA, citrullination, peptide/protein arginine deiminase, PAD, filaggrin, vimentin, keratin, collagen, perinuclear factor, EBNA1, EBNA2, and others. From this search, we made a qualitative extract of publications relevant to the discovery, characterization, and clinical use of these antibodies in relation to RA. We highlight significant findings and identify areas for improvement. EXPERT OPINION ACPAs have high diagnostic sensitivity and specificity for RA and recognize citrullinated epitopes from several proteins. The best-performing single epitope originates from Epstein-Barr Virus nuclear antigen 2 and contains a central Cit-Gly motif, which is recognized by ACPAS when located in a flexible peptide structure. In addition, ACPAs may also have prognostic value, especially in relation to early treatment, although ACPAs' main function is to aid in the diagnosis of RA.
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Affiliation(s)
| | - Gunnar Houen
- Department of Neurology, Rigshospitalet Glostrup, Glostrup, Denmark
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, Odense M, Denmark
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Bozzao F, Tomietto P, Baratella E, Kodric M, Cifaldi R, Della Porta R, Prearo I, Pirronello SMG, Confalonieri P, Ruaro B, Fischetti F, Fabris B. Clinical Characterization and Predictive Factors for Progression in a Cohort of Patients with Interstitial Lung Disease and Features of Autoimmunity: The Need for a Revision of IPAF Classification Criteria. MEDICINA (KAUNAS, LITHUANIA) 2023; 59:794. [PMID: 37109752 PMCID: PMC10146211 DOI: 10.3390/medicina59040794] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 04/03/2023] [Accepted: 04/13/2023] [Indexed: 04/29/2023]
Abstract
Background and Objectives: The "interstitial pneumonia with autoimmune features" (IPAF) criteria have been criticized because of the exclusion of usual interstitial pneumonia (UIP) patients with a single clinical or serological feature. To classify these patients, the term UIPAF was proposed. This study aims to describe clinical characteristics and predictive factors for progression of a cohort of interstitial lung disease (ILD) patients with at least one feature of autoimmunity, applying criteria for IPAF, specific connective tissue diseases (CTD), and a definition of UIPAF when possible. Methods: We retrospectively evaluated data on 133 consecutive patients with ILD at onset associated with at least one feature of autoimmunity, referred by pulmonologists to rheumatologists from March 2009 to March 2020. Patients received 33 (16.5-69.5) months of follow-up. Results: Among the 101 ILD patients included, 37 were diagnosed with IPAF, 53 with ILD-onset CTD, and 11 with UIPAF. IPAF patients had a lower prevalence of UIP pattern compared to CTD-ILD and UIPAF patients (10.8% vs. 32.1% vs. 100%, p < 0.01). During the follow-up, 4 IPAF (10.8%) and 2 UIPAF (18.2%) patients evolved into CTD-ILD. IPAF patients presented features not included in IPAF criteria, such as sicca syndrome (8.1%), and were more frequently affected by systemic hypertension (p < 0.01). Over one year, ILD progression (greater extent of fibrosis on HRCT and/or decline in PFTs) was less frequent in the IPAF group compared to CTD-ILD and UIPAF (32.3% vs. 58.8% vs. 72.7, p = 0.02). A UIP pattern and an IPAF predicted a faster (OR: 3.80, p = 0.01) and a slower (OR: 0.28, p = 0.02) ILD progression, respectively. Conclusions: IPAF criteria help identify patients who might develop a CTD-ILD, even though a single clinical or serological feature is respected. Future revisions of IPAF criteria should include sicca syndrome and separate UIP-pattern into a different definition (UIPAF), given its association with a different prognosis, independently from ILD classification.
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Affiliation(s)
- Francesco Bozzao
- Internal Medicine Department, Azienda ULSS 2 “Marca Trevigiana”, 31100 Treviso, Italy
| | - Paola Tomietto
- Internal Medicine Department, Rheumatology Unit, Azienda Sanitaria Universitaria Giuliano Isontina (ASUGI), 34128 Trieste, Italy
| | - Elisa Baratella
- Institute of Radiology, Department of Medical Surgical and Health Sciences, Cattinara Hospital, University of Trieste, 34128 Trieste, Italy
- Department of Medicine, Surgery and Health Sciences, University of Trieste, 34128 Trieste, Italy
| | - Metka Kodric
- Pneumology Unit, Azienda Sanitaria Universitaria Giuliano Isontina (ASUGI), 34128 Trieste, Italy
| | - Rossella Cifaldi
- Pneumology Unit, Azienda Sanitaria Universitaria Giuliano Isontina (ASUGI), 34128 Trieste, Italy
| | - Rossana Della Porta
- Pneumology Unit, Azienda Sanitaria Universitaria Giuliano Isontina (ASUGI), 34128 Trieste, Italy
| | - Ilaria Prearo
- Vascular Medicine Unit, University Hospital LMU Munich, 81377 Munich, Germany
| | | | - Paola Confalonieri
- Pneumology Unit, Azienda Sanitaria Universitaria Giuliano Isontina (ASUGI), 34128 Trieste, Italy
| | - Barbara Ruaro
- Department of Medicine, Surgery and Health Sciences, University of Trieste, 34128 Trieste, Italy
- Pneumology Unit, Azienda Sanitaria Universitaria Giuliano Isontina (ASUGI), 34128 Trieste, Italy
| | - Fabio Fischetti
- Internal Medicine Department, Rheumatology Unit, Azienda Sanitaria Universitaria Giuliano Isontina (ASUGI), 34128 Trieste, Italy
- Department of Medicine, Surgery and Health Sciences, University of Trieste, 34128 Trieste, Italy
| | - Bruno Fabris
- Department of Medicine, Surgery and Health Sciences, University of Trieste, 34128 Trieste, Italy
- Internal Medicine Department, Azienda Sanitaria Universitaria Giuliano Isontina (ASUGI), 34128 Trieste, Italy
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Oka S, Higuchi T, Furukawa H, Shimada K, Okamoto A, Hashimoto A, Komiya A, Saisho K, Yoshikawa N, Katayama M, Matsui T, Fukui N, Migita K, Tohma S. Antibodies against Serum Anti-Melanoma Differentiation-Associated Gene 5 in Rheumatoid Arthritis Patients with Chronic Lung Diseases. MEDICINA (KAUNAS, LITHUANIA) 2023; 59:medicina59020363. [PMID: 36837566 PMCID: PMC9962840 DOI: 10.3390/medicina59020363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 02/10/2023] [Accepted: 02/13/2023] [Indexed: 02/17/2023]
Abstract
Chronic lung diseases (CLD), including interstitial lung disease (ILD) and airway diseases (ADs), are common complications of rheumatoid arthritis (RA). Rheumatoid factor (RF) and anti-citrullinated peptide antibodies are reported to be associated with CLD in RA patients. The presence of anti-melanoma differentiation-associated gene 5 (MDA5) antibodies (Abs) is associated with clinically amyopathic dermatomyositis developing into rapidly progressive ILD. However, few studies on anti-MDA5 Abs in RA have been published. Here, we analyzed the association of anti-MDA5 Abs with CLD complications in RA. Anti-MDA5 Abs were quantified in sera from RA patients with or without CLD. Anti-MDA5 Ab levels were higher in RA patients with ADs than without (mean ± SDM, 4.4 ± 2.4 vs. 4.0 ± 4.2, p = 0.0001). AUC values of anti-MDA5 Ab and RF ROC curves were similar in RA patients with or without CLD (0.578, 95%CI 0.530-0.627 and 0.579, 95%CI 0.530-0.627, respectively, p = 0.9411). Multiple logistic regression analysis of anti-MDA5 Abs and clinical characteristics yielded an MDA5-index with a higher AUC value than anti-MDA5 Ab alone (0.694, 95%CI 0.648-0.740, p = 5.08 × 10-5). Anti-MDA5 Abs were associated with ADs in RA patients and could represent a biomarker for CLD, similar to RF. The involvement of anti-MDA5 Abs in the pathogenesis of ADs in RA is proposed.
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Affiliation(s)
- Shomi Oka
- Department of Rheumatology, National Hospital Organization Tokyo National Hospital, 3-1-1 Takeoka, Kiyose 204-8585, Japan
- Clinical Research Center for Allergy and Rheumatology, National Hospital Organization Sagamihara National Hospital, 18-1 Sakuradai, Minami-ku, Sagamihara 252-0392, Japan
| | - Takashi Higuchi
- Department of Rheumatology, National Hospital Organization Tokyo National Hospital, 3-1-1 Takeoka, Kiyose 204-8585, Japan
- Department of Nephrology, Ushiku Aiwa General Hospital, 896 Shishiko-cho, Ushiku 300-1296, Japan
| | - Hiroshi Furukawa
- Department of Rheumatology, National Hospital Organization Tokyo National Hospital, 3-1-1 Takeoka, Kiyose 204-8585, Japan
- Clinical Research Center for Allergy and Rheumatology, National Hospital Organization Sagamihara National Hospital, 18-1 Sakuradai, Minami-ku, Sagamihara 252-0392, Japan
- Correspondence:
| | - Kota Shimada
- Department of Rheumatology, National Hospital Organization Sagamihara National Hospital, 18-1 Sakuradai, Minami-ku, Sagamihara 252-0392, Japan
- Department of Rheumatic Diseases, Tokyo Metropolitan Tama Medical Center, 2-8-29 Musashi-dai, Fuchu 183-8524, Japan
| | - Akira Okamoto
- Department of Rheumatology, National Hospital Organization Himeji Medical Center, 68 Hon-machi, Himeji 670-8520, Japan
| | - Atsushi Hashimoto
- Department of Rheumatology, National Hospital Organization Sagamihara National Hospital, 18-1 Sakuradai, Minami-ku, Sagamihara 252-0392, Japan
- Department of Internal Medicine, Sagami Seikyou Hospital, 6-2-11 Sagamiohno, Minami-ku, Sagamihara 252-0303, Japan
| | - Akiko Komiya
- Clinical Research Center for Allergy and Rheumatology, National Hospital Organization Sagamihara National Hospital, 18-1 Sakuradai, Minami-ku, Sagamihara 252-0392, Japan
- Department of Clinical Laboratory, National Hospital Organization Sagamihara National Hospital, 18-1 Sakuradai, Minami-ku, Sagamihara 252-0392, Japan
| | - Koichiro Saisho
- Department of Orthopedics/Rheumatology, National Hospital Organization Miyakonojo Medical Center, 5033-1 Iwayoshi-cho, Miyakonojo 885-0014, Japan
- Tanimura Hospital, 10-2 Kitakoji, Nobeoka 882-0041, Japan
| | - Norie Yoshikawa
- Department of Orthopedics/Rheumatology, National Hospital Organization Miyakonojo Medical Center, 5033-1 Iwayoshi-cho, Miyakonojo 885-0014, Japan
| | - Masao Katayama
- Department of Internal Medicine, National Hospital Organization Nagoya Medical Center, 4-1-1 Sannomaru, Naka-ku, Nagoya 460-0001, Japan
| | - Toshihiro Matsui
- Clinical Research Center for Allergy and Rheumatology, National Hospital Organization Sagamihara National Hospital, 18-1 Sakuradai, Minami-ku, Sagamihara 252-0392, Japan
- Department of Rheumatology, National Hospital Organization Sagamihara National Hospital, 18-1 Sakuradai, Minami-ku, Sagamihara 252-0392, Japan
| | - Naoshi Fukui
- Clinical Research Center for Allergy and Rheumatology, National Hospital Organization Sagamihara National Hospital, 18-1 Sakuradai, Minami-ku, Sagamihara 252-0392, Japan
- Department of Life Sciences, Graduate School of Arts and Sciences, The University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo 153-8902, Japan
| | - Kiyoshi Migita
- Clinical Research Center, National Hospital Organization Nagasaki Medical Center, 2-1001-1 Kubara, Omura 856-8562, Japan
- Department of Gastroenterology and Rheumatology, Fukushima Medical University School of Medicine, 1 Hikarigaoka, Fukushima 960-1295, Japan
| | - Shigeto Tohma
- Department of Rheumatology, National Hospital Organization Tokyo National Hospital, 3-1-1 Takeoka, Kiyose 204-8585, Japan
- Clinical Research Center for Allergy and Rheumatology, National Hospital Organization Sagamihara National Hospital, 18-1 Sakuradai, Minami-ku, Sagamihara 252-0392, Japan
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Nie Q, Luo Q, Yan W, Zhang T, Wang H, Wu J. Rheumatoid arthritis and coronary atherosclerosis: a two-sample Mendelian randomization study. Front Cardiovasc Med 2023; 10:1033644. [PMID: 37187788 PMCID: PMC10175685 DOI: 10.3389/fcvm.2023.1033644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Accepted: 04/17/2023] [Indexed: 05/17/2023] Open
Abstract
Objectives The relationship between rheumatoid arthritis (RA) and coronary atherosclerosis is widely concerned, but observational studies have not clarified causality. We performed two-sample Mendelian randomization (MR) study to assess the causal association between RA and coronary atherosclerosis. Methods we mainly conducted MR analysis using the inverse variance weighted (IVW) approach. Weighted median, MR-Egger regression and maximum likelihood were conducted as sensitivity analyses for supplementary analysis. Multivariate MR also were performed to validate the results of two-sample MR. Furthermore, we performed the MR-Egger intercept, MR-PRESSO, Cochran's Q test, and "Leave-one-out" to assess the levels of pleiotropy and heterogeneity. Results IVW result showed a positive link between genetic predisposition to RA and increased relative risk of coronary atherosclerosis (OR: 1.0021, 95%CI 1.0011-1.0031, P < 0.05). The result was confirmed by the weighted median method (OR: 1.0028, 95%CI 1.0014-1.0042, P < 0.05), MR-Egger regression (OR: 1.0031, 95%CI 1.0012-1.0049, P < 0.05) and maximum likelihood (OR: 1.0021, 95%CI 1.0011-1.0030, P < 0.05). Multivariate MR also reached a consistent conclusion. In addition, MR-Egger intercept (P = 0.20) and MR-PRESSO (P = 0.06) did not provide evidence of horizontal pleiotropy. Meanwhile, the results of Cochran's Q test (P = 0.05) and "Leave-one-out" failed to detect significant heterogeneity. Conclusion The result of the two-sample MR analysis found genetic evidence to support the positive causal association between RA and coronary atherosclerosis, suggesting that active intervention for RA may reduce the incidence of coronary atherosclerosis.
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Affiliation(s)
- Qiong Nie
- Department of Geriatrics, The Affiliated Hospital of Southwest Jiaotong University, The Third People's Hospital of Chengdu, Chengdu, China
| | - Qiang Luo
- Department of Cardiology, The Affiliated Hospital of Southwest Jiaotong University, The Third People's Hospital of Chengdu, Chengdu, China
| | - Wei Yan
- Department of Geriatrics, The Affiliated Hospital of Southwest Jiaotong University, The Third People's Hospital of Chengdu, Chengdu, China
| | - Tongtong Zhang
- Department of General Surgery, The Center of Gastrointestinal and Minimally Invasive Surgery, The Affiliated Hospital of Southwest Jiaotong University, The Third People's Hospital of Chengdu, Chengdu, China
| | - Han Wang
- Department of Cardiology, The Affiliated Hospital of Southwest Jiaotong University, The Third People's Hospital of Chengdu, Chengdu, China
- Correspondence: Han Wang Jing Wu
| | - Jing Wu
- Department of Geriatrics, The Affiliated Hospital of Southwest Jiaotong University, The Third People's Hospital of Chengdu, Chengdu, China
- Correspondence: Han Wang Jing Wu
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Chudek A, Kotyla P, Mossakowska M, Grodzicki T, Zdrojewski T, Olszanecka-Glinianowicz M, Chudek J, Owczarek AJ. The Prevalence of Anticitrullinated Protein Antibodies in Older Poles-Results from a Population-Based PolSenior Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:14216. [PMID: 36361095 PMCID: PMC9655192 DOI: 10.3390/ijerph192114216] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 10/21/2022] [Accepted: 10/24/2022] [Indexed: 06/16/2023]
Abstract
Little is known about the occurrence of antibodies in older subjects. We analyzed the prevalence of anticitrullinated protein antibodies (anti-CCP) in a representative cohort of Polish older adults, participants of PolSenior substudy. Randomly selected 1537 serum samples of community-dwelling participants aged 65 and over. Questionnaires were completed by qualified interviewers and laboratory assessments served as a database for this analysis. The frequency of anti-CCP seropositivity (N = 50) was estimated at 3.25% (95% CI: 2.45-4.30%), being higher among women-4.05% (2.83-5.73%) than men-2.41% (1.48-3.86%). The frequency of anti-CCP seropositivity was decreasing with age from 4.29% in aged 65-74 years and 4.07% in 70-84 years to 1.50% in aged 85 years or above (p < 0.05). Hypoalbuminemia, inflammatory status (C-reactive protein >10 mg/dL or interleukin-6 ≥10 pg/mL), and female gender were associated with increased, while age ≥85 years with decreased risk of seropositivity. Multivariable logistic regression revealed that hypoalbuminemia, inflammatory status, and age ≥85 years were independently associated factors of anti-CCP seropositivity. The decreased frequency of anti-CCP seropositivity in the oldest old suggests shorter survival of the seropositive individuals who developed rheumatoid arthritis. It seems that low symptomatic RA remains frequently undiagnosed in older subjects.
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Affiliation(s)
- Anna Chudek
- Health Promotion and Obesity Management Unit, Department of Pathophysiology, Faculty of Medical Sciences in Katowice, Medical University of Silesia in Katowice, 40-752 Katowice, Poland
| | - Przemysław Kotyla
- Department of Internal Medicine, Rheumatology and Clinical Immunology, Faculty of Medical Sciences in Katowice, Medical University of Silesia in Katowice, 40-635 Katowice, Poland
| | - Małgorzata Mossakowska
- Study on Ageing and Longevity, International Institute of Molecular and Cell Biology, 02-109 Warsaw, Poland
| | - Tomasz Grodzicki
- Department of Internal Medicine and Gerontology, Jagiellonian University Medical College, 31-531 Krakow, Poland
| | - Tomasz Zdrojewski
- Division of Preventive Medicine and Education, Medical University of Gdansk, 80-211 Gdansk, Poland
| | - Magdalena Olszanecka-Glinianowicz
- Health Promotion and Obesity Management Unit, Department of Pathophysiology, Faculty of Medical Sciences in Katowice, Medical University of Silesia in Katowice, 40-752 Katowice, Poland
| | - Jerzy Chudek
- Department of Internal Medicine and Oncological Chemotherapy, Medical University of Silesia, 40-029 Katowice, Poland
| | - Aleksander J. Owczarek
- Health Promotion and Obesity Management Unit, Department of Pathophysiology, Faculty of Medical Sciences in Katowice, Medical University of Silesia in Katowice, 40-752 Katowice, Poland
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9
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Leu Agelii M, Hafström I, Svensson B, Ajeganova S, Forslind K, Andersson M, Gjertsson I. Misdiagnosis of Rheumatoid Arthritis in a Long-Term Cohort of Early Arthritis Based on the ACR-1987 Classification Criteria. Open Access Rheumatol 2022; 14:187-194. [PMID: 36172258 PMCID: PMC9512412 DOI: 10.2147/oarrr.s372724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Accepted: 08/09/2022] [Indexed: 12/04/2022] Open
Abstract
Objective Correct diagnosis of early rheumatoid arthritis (RA) is essential for optimal treatment choices. No pathognomonic test is available, and diagnosis is based on classification criteria, which can result in misdiagnosis. Here, we examined the differences between actual and misdiagnosed RA cases in a long-term cohort of patients included based on the ACR-1987 classification criteria. Methods Patients in the BARFOT (Better Anti-Rheumatic PharmacOTherapy) cohort (n=2543) with at least four follow-up visits during the initial 5 years from enrolment were assessed, and a change in diagnosis was reported by the treating rheumatologist. The groups were analysed with respect to the individual classification criteria, antibodies to citrullinated proteins (ACPA), disease activity (DAS28) and radiographic changes from inclusion up to 2 years. Results Forty-five patients (1.8%) were misdiagnosed (RA-change group). When compared to those in the RA-change group, the patients who kept their diagnosis (RA-keep) were more often RF positive (64% vs 21%, p<0.001) or ACPA positive (59% vs 8%, p<0.001). They were also more likely to fulfil more than four ACR-1987 criteria (64% vs 33%, p<0.001) and to have radiographic changes at inclusion (RA-keep 27% vs RA-change 12%, p=0.04). The groups had a similar evolution of DAS28 and its components as well as of radiological joint destruction. Conclusion Diagnosis of RA according to the ACR-1987 criteria had a high precision in this long-term cohort. A diagnosis of RA should be re-evaluated in patients who do not fulfil more than four ACR-1987 criteria especially in patients negative for RF.
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Affiliation(s)
- Monica Leu Agelii
- Department of Rheumatology and Inflammation Research, Institute of Medicine, Sahlgrenska Academy, Gothenburg University, Gothenburg, Sweden
| | - Ingiäld Hafström
- Department of Medicine Huddinge, Division of Gastroenterology and Rheumatology, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - Björn Svensson
- Department of Clinical Sciences Lund, Section of Rheumatology, Lund University, Faculty of Medicine, Lund, Sweden
| | - Sofia Ajeganova
- Department of Clinical Sciences, Rheumatology Division, Universitair Ziekenhuis Brussel, Vrije Universiteit Brussel, Brussels, Belgium.,Spenshult Research and Development Center, Halmstad, Sweden
| | - Kristina Forslind
- Department of Clinical Sciences Lund, Section of Rheumatology, Lund University, Faculty of Medicine, Lund, Sweden.,Spenshult Research and Development Center, Halmstad, Sweden
| | - Maria Andersson
- Department of Clinical Sciences Lund, Section of Rheumatology, Lund University, Faculty of Medicine, Lund, Sweden.,Spenshult Research and Development Center, Halmstad, Sweden
| | - Inger Gjertsson
- Department of Rheumatology and Inflammation Research, Institute of Medicine, Sahlgrenska Academy, Gothenburg University, Gothenburg, Sweden
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10
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Romão VC, Fonseca JE. Disease mechanisms in preclinical rheumatoid arthritis: A narrative review. Front Med (Lausanne) 2022; 9:689711. [PMID: 36059838 PMCID: PMC9437632 DOI: 10.3389/fmed.2022.689711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Accepted: 08/04/2022] [Indexed: 11/20/2022] Open
Abstract
In the last decades, the concept of preclinical rheumatoid arthritis (RA) has become established. In fact, the discovery that disease mechanisms start years before the onset of clinical RA has been one of the major recent insights in the understanding of RA pathogenesis. In accordance with the complex nature of the disease, preclinical events extend over several sequential phases. In a genetically predisposed host, environmental factors will further increase susceptibility for incident RA. In the initial steps of preclinical disease, immune disturbance mechanisms take place outside the joint compartment, namely in mucosal surfaces, such as the lung, gums or gut. Herein, the persistent immunologic response to altered antigens will lead to breach of tolerance and trigger autoimmunity. In a second phase, the immune response matures and is amplified at a systemic level, with epitope spreading and widening of the autoantibody repertoire. Finally, the synovial and bone compartment are targeted by specific autoantibodies against modified antigens, initiating a local inflammatory response that will eventually culminate in clinically evident synovitis. In this review, we discuss the elaborate disease mechanisms in place during preclinical RA, providing a broad perspective in the light of current evidence.
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Affiliation(s)
- Vasco C. Romão
- Rheumatology Department, Hospital de Santa Maria, Centro Hospitalar Universitário Lisboa Norte, Lisbon Academic Medical Centre and European Reference Network on Rare Connective Tissue and Musculoskeletal Diseases Network (ERN-ReCONNET), Lisbon, Portugal
- Rheumatology Research Unit, Faculdade de Medicina, Instituto de Medicina Molecular João Lobo Antunes, Universidade de Lisboa, Lisbon, Portugal
| | - João Eurico Fonseca
- Rheumatology Research Unit, Faculdade de Medicina, Instituto de Medicina Molecular João Lobo Antunes, Universidade de Lisboa, Lisbon, Portugal
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11
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Uriarte Ecenarro M, Useros D, Alfranca A, Tejedor R, González-Alvaro I, García-Vicuña R. Anti-Citrullinated Protein Antibody Titers Are Independently Modulated by Both Disease Activity and Conventional or Biologic Anti-Rheumatic Drugs. Diagnostics (Basel) 2022; 12:diagnostics12071773. [PMID: 35885675 PMCID: PMC9319415 DOI: 10.3390/diagnostics12071773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Revised: 07/08/2022] [Accepted: 07/19/2022] [Indexed: 11/16/2022] Open
Abstract
This study aimed to analyze the factors that influence anti-citrullinated protein antibody (ACPA) titers in a seropositive early arthritis (EA) population under non-protocolized treatment with disease-modifying anti-rheumatic drugs (DMARDs). A total of 130 ACPA-positive patients from the PEARL (Princesa Early Arthritis Longitudinal) study were studied along a 5-year follow-up. Sociodemographic, clinical, and therapeutic variables, along with serum samples, were collected at five visits by protocol. Anti-cyclic citrullinated peptide 2 (CCP2) ACPA titers were measured by ELISA. The effect of different variables on anti-CCP2 titers was estimated using longitudinal multivariate analysis models, nested by visit and patient. Data from 471 visits in 130 patients were analyzed. A significant decrease in anti-CCP2 titers was observed at all time-points, compared to baseline, following the decline of disease activity. In the multivariate analysis, active or ever smoking was significantly associated with the highest anti-CCP2 titers while reduction in disease activity was associated with titer decline. After adjusting for these variables, both conventional synthetic (cs) and biologic (b) DMARDs accounted for the decline in anti-CCP2 titers as independent factors. Conclusion: In patients with EA, an early and sustained reduction in ACPA titers can be detected associated with the decline in disease activity, irrespective of the treatment used.
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Affiliation(s)
- Miren Uriarte Ecenarro
- Rheumatology Service, Hospital Universitario La Princesa, IIS-Princesa, 28006 Madrid, Spain;
| | - Daniel Useros
- Internal Medicine Service, Hospital Universitario La Princesa, IIS-Princesa, 28006 Madrid, Spain;
| | - Aranzazu Alfranca
- Immunology Service, Hospital Universitario La Princesa, IIS-Princesa, 28006 Madrid, Spain; (A.A.); (R.T.)
- Department of Medicine, Faculty of Medicine, Autonomous University of Madrid, 28029 Madrid, Spain
| | - Reyes Tejedor
- Immunology Service, Hospital Universitario La Princesa, IIS-Princesa, 28006 Madrid, Spain; (A.A.); (R.T.)
| | - Isidoro González-Alvaro
- Rheumatology Service, Hospital Universitario La Princesa, IIS-Princesa, 28006 Madrid, Spain;
- Correspondence: (I.G.-A.); (R.G.-V.)
| | - Rosario García-Vicuña
- Rheumatology Service, Hospital Universitario La Princesa, IIS-Princesa, 28006 Madrid, Spain;
- Department of Medicine, Faculty of Medicine, Autonomous University of Madrid, 28029 Madrid, Spain
- Correspondence: (I.G.-A.); (R.G.-V.)
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12
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Chen N, Diao CY, Gao J, Zhao DB. Risk factors for the progression of rheumatoid arthritis-related interstitial lung disease: clinical features, biomarkers, and treatment options. Semin Arthritis Rheum 2022; 55:152004. [DOI: 10.1016/j.semarthrit.2022.152004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 02/19/2022] [Accepted: 03/28/2022] [Indexed: 11/30/2022]
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13
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Kuwana M, Gil-Vila A, Selva-O’Callaghan A. Role of autoantibodies in the diagnosis and prognosis of interstitial lung disease in autoimmune rheumatic disorders. Ther Adv Musculoskelet Dis 2021; 13:1759720X211032457. [PMID: 34377160 PMCID: PMC8320553 DOI: 10.1177/1759720x211032457] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Accepted: 06/25/2021] [Indexed: 12/17/2022] Open
Abstract
Interstitial lung disease (ILD) has been recognized as a frequent manifestation associated with a substantial morbidity and mortality burden in patients with autoimmune rheumatic disorders. Serum autoantibodies are considered good biomarkers for identifying several subsets or specific phenotypes of ILD involvement in these patients. This review features the role of several autoantibodies as a diagnostic and prognostic biomarker linked to the presence ILD and specific ILD phenotypes in autoimmune rheumatic disorders. The case of the diverse antisynthetase antibodies in the antisynthease syndrome or the anti-melanoma differentiation-associated 5 protein (MDA5) antibodies as a marker of a severe condition such as rapidly progressive ILD in patients with clinically amyopathic dermatomyositis are some of the associations herein reported in the group of myositis spectrum disorders. Specific autoantibodies such as the well-known anti-topoisomerase I (anti-Scl70) or the anti-Th/To, anti-U11/U12 ribonucleoprotein, and anti-eukaryotic initiation factor 2B (eIF2B) antibodies seems to be specifically linked to ILD in patients with systemic sclerosis. Overlap syndromes between systemic sclerosis and myositis, also have good ILD biomarkers, which are the anti-PM/Scl and anti-Ku autoantibodies. Lastly, other not so often reported disorders as being associated with ILD but recently most recognized as is the case of rheumatoid arthritis associated ILD or entities herein included in the miscellaneous disorders section, which include anti-neutrophil cytoplasmic antibody-associated interstitial lung disease, Sjögren's syndrome or the mixed connective tissue disease, are also discussed.
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Affiliation(s)
- Masataka Kuwana
- Department of Allergy and Rheumatology, Nippon Medical School Graduate School of Medicine; Scleroderma/Myositis Center of Excellence (SMCE) Nippon Medical School Hospital, 1-1-5 Sendagi, Bunkyo-ku, Tokyo, Japan
| | - Albert Gil-Vila
- Systemic Autoimmune Diseases Unit, Vall d’Hebron General Hospital, Medicine Dept, Universitat Autónoma de Barcelona, Barcelona, Spain
| | - Albert Selva-O’Callaghan
- Systemic Autoimmune Diseases Unit, Vall d’Hebron General Hospital, Medicine Dept, Universitat Autónoma de Barcelona, Barcelona, Spain
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14
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Harrold LR, Bryson J, Lehman T, Zhuo J, Gao S, Han X, Schrader A, Rebello S, Pappas DA, Sommers T, Kremer JM. Association Between Baseline Anti-cyclic Citrullinated Peptide Antibodies and 6-Month Clinical Response Following Abatacept or TNF Inhibitor Treatment: A Real-World Analysis of Biologic-Experienced Patients with RA. Rheumatol Ther 2021; 8:937-953. [PMID: 34047953 PMCID: PMC8217398 DOI: 10.1007/s40744-021-00310-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Accepted: 04/19/2021] [Indexed: 11/25/2022] Open
Abstract
INTRODUCTION Anti-cyclic citrullinated peptide (anti-CCP) antibodies are associated with poor prognosis in patients with rheumatoid arthritis (RA). Previous data from randomized controlled trials and clinical practice have shown anti-CCP-positive (+) patients had a better response to treatment with abatacept or tumor necrosis factor inhibitor (TNFi) treatment than those who were anti-CCP negative. This study assessed the association between baseline anti-CCP2 [a surrogate for anti-citrullinated protein antibody (ACPA)] concentration and 6-month treatment responses to abatacept or TNFi in patients with RA. METHODS This real-world analysis included biologic-experienced patients from CERTAIN (Comparative Effectiveness Registry to study Therapies for Arthritis and Inflammatory CoNditions) who initiated abatacept or TNFi, had prior biologic disease-modifying drug exposure and baseline anti-CCP2 concentration/serostatus and serum samples (baseline and 6 months). Baseline demographics and disease characteristics were compared. Change from baseline at 6 months in Clinical Disease Activity Index (CDAI) score and patient-reported outcomes [PROs: pain, fatigue, patient global assessment (PtGA), modified Health Assessment Questionnaire (mHAQ) score], by baseline anti-CCP2 quartile and binary cut-off (> 10-250 and > 250 U/ml), were evaluated separately in the abatacept and TNFi groups using a linear regression model adjusted for age, sex, CDAI/PROs, comorbidity index, and methotrexate use. RESULTS Included were 138 abatacept and 137 TNFi initiators who were anti-CCP2+. At baseline, there were significant differences between anti-CCP2 quartiles and mean CDAI, swollen joint count 28, C-reactive protein (CRP), Disease Activity Score 28 (CRP), rheumatoid factor (RF), mHAQ and physician global assessment among abatacept initiators, and in mean RF, mHAQ, and PtGA among TNFi initiators. Among abatacept (but not TNFi) initiators, CDAI numerically improved (p = 0.208) and PROs significantly improved (p < 0.05) with increasing baseline anti-CCP2. CONCLUSIONS In patients treated with abatacept, not TNFi, higher anti-CCP2 concentrations at baseline were associated with numerically greater improvements in CDAI and significant improvements in PROs after 6 months. CLINICAL TRIAL NUMBER NCT01625650.
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Affiliation(s)
- Leslie R Harrold
- CorEvitas, LLC, 1440 Main Street, Suite 310, Waltham, MA, 02451, USA.
- University of Massachusetts Medical School, 55 Lake Avenue North, Worcester, MA, 01655, USA.
| | - Joshua Bryson
- Bristol Myers Squibb, 100 Nassau Park Blvd #300, Princeton, NJ, 08540, USA
| | - Thomas Lehman
- Bristol Myers Squibb, 100 Nassau Park Blvd #300, Princeton, NJ, 08540, USA
| | - Joe Zhuo
- Bristol Myers Squibb, 100 Nassau Park Blvd #300, Princeton, NJ, 08540, USA
| | - Sheng Gao
- Bristol Myers Squibb, 100 Nassau Park Blvd #300, Princeton, NJ, 08540, USA
| | - Xue Han
- Bristol Myers Squibb, 100 Nassau Park Blvd #300, Princeton, NJ, 08540, USA
| | - Amy Schrader
- CorEvitas, LLC, 1440 Main Street, Suite 310, Waltham, MA, 02451, USA
| | - Sabrina Rebello
- Amyloidosis Research Consortium, 320 Nevada Street, Suite 210, Newton, Massachusetts, 02460, USA
| | - Dimitrios A Pappas
- CorEvitas, LLC, 1440 Main Street, Suite 310, Waltham, MA, 02451, USA
- Department of Medicine, Columbia University, 630 West 168th Street, New York, NY, USA
| | - Tanya Sommers
- CorEvitas, LLC, 1440 Main Street, Suite 310, Waltham, MA, 02451, USA
| | - Joel M Kremer
- Albany Medical College and the Center for Rheumatology, 47 New Scotland Ave, Albany, NY, 12208, USA
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15
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Sung WY, Tsai WC. Rethink About the Role of Rheumatoid Factor and Anti-citrullinated Protein Antibody in Rheumatoid Arthritis. RHEUMATOLOGY AND IMMUNOLOGY RESEARCH 2021; 2:19-25. [PMID: 36467904 PMCID: PMC9524775 DOI: 10.2478/rir-2021-0003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Accepted: 01/04/2021] [Indexed: 05/15/2023]
Abstract
Rheumatoid arthritis (RA) is a chronic inflammatory autoimmune disease characterized by joint inflammation and extra-articular manifestations. Many questions in the pathogenesis, clinical manifestation, and disease spectrum are answered after the discovery of the first autoantibody namely rheumatoid factor (RF). The finding of the second autoantibody named anti-citrullinated protein antibody (ACPA), which unearths the importance of protein citrullination process. It further provides the insight how immune cells and complement interact to perpetuate the inflammatory response. These two autoantibodies pave the way for our better understanding of RA. This review article focuses on the history, pathophysiology, and clinical association of these two autoantibodies in RA.
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Affiliation(s)
- Wang Yu Sung
- Division of Rheumatology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Taiwan, China
| | - Wen Chan Tsai
- Division of Rheumatology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Taiwan, China
- E-mail:
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16
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Kolarz B, Ciesla M, Rosenthal AK, Dryglewska M, Majdan M. The value of anti-CarP and anti-PAD4 as markers of rheumatoid arthritis in ACPA/RF negative rheumatoid arthritis patients. Ther Adv Musculoskelet Dis 2021; 13:1759720X21989868. [PMID: 33628335 PMCID: PMC7882754 DOI: 10.1177/1759720x21989868] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Accepted: 01/03/2021] [Indexed: 11/15/2022] Open
Abstract
Background: Anti-citrullinated protein antibodies (ACPAs) and rheumatoid factor (RF) are key factors in the American College of Rheumatology/European League Against Rheumatism rheumatoid arthritis (RA) classification criteria markers. However, about 30% of patients diagnosed with RA are seronegative, rationalizing the need for new serologic markers for RA. Antibodies against carbamylated proteins (anti-CarP) and against peptidyl-arginine deiminase type 4 (anti-PAD4) have been postulated to be useful RA markers. The purpose of this study is to evaluate the value of anti-CarP and anti-PAD4 in a well-characterized population of RA patients and healthy controls (HCs). Methods: A total of 122 RA patients and 30 HCs were enrolled in the study. Serum levels of ACPA, anti-PAD4, anti-CarP and RF were determined by enzyme-linked immunosorbent immunoassays (ELISAs). Synthetic carbamylated peptides were used in the ELISA assay to determine the protein targets of the anti-CarP antibodies. Results: Rates of ACPA, RF, anti-PAD4 and anti-CarP positivity were 85.2%, 67.2%, 55.7% and 46.7% in RA, and 0%, 0%, 6.7% and 6.7% in HC respectively. In the RA population, 25.4% of patients had all four types of antibodies positive, while 6.6% had no antibodies. There was a significant correlation between anti-PAD4 and ACPAs (rs = 0.39), RF and ACPAs, (rs = 0.3) and RF and anti-CarP, (rs = 0.3). There was no correlation between ACPAs and anti-CarP. Anti-CarP positivity was noted in 49 (47.1%) and 45 (54.9%) of ACPAs and RF positive patients respectively. In addition, five anti-CarP+ patients did not have ACPA nor RF. Conclusion: Anti-CarP but not anti-PAD4 may be a useful biomarker in identifying ACPA/RF negative RA patients. This antibody may identify an additional RA population who may benefit from early implementation of aggressive therapy.
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Affiliation(s)
| | - Marek Ciesla
- Faculty of Medicine, University of Rzeszow, Rzeszow, Poland
| | - Ann K. Rosenthal
- Division of Rheumatology, Department of Medicine, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Magdalena Dryglewska
- Department of Rheumatology and Connective Tissue Disease, Medical University of Lublin, Lublin, Lubelskie, Poland
| | - Maria Majdan
- Department of Rheumatology and Connective Tissue Disease, Medical University of Lublin, Lublin, Lubelskie, Poland
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17
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Ugolini A, Nuti M. Rheumatoid Factor: A Novel Determiner in Cancer History. Cancers (Basel) 2021; 13:cancers13040591. [PMID: 33546243 PMCID: PMC7913362 DOI: 10.3390/cancers13040591] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 01/25/2021] [Accepted: 02/01/2021] [Indexed: 12/14/2022] Open
Abstract
Simple Summary Rheumatoid factors are autoantibodies that characterize different autoimmune diseases, in particular rheumatoid arthritis, but that can also be found in the sera of the general healthy population. They have been mainly studied in the context of autoimmune diseases, but some evidence have suggested an association between their presence and the predisposition to develop cancer as well as a facilitation of cancer growth and progression in oncologic patients. In this review, for the first time we thus analyze and discuss the possible roles that these autoantibodies can assume in tumor history, from determiners of a heightened susceptibility of developing cancer to drivers of a reduced response to immunotherapies. Abstract The possible interplay between autoimmunity and cancer is a topic that still needs to be deeply explored. Rheumatoid factors are autoantibodies that are able to bind the constant regions (Fc) of immunoglobulins class G (IgGs). In physiological conditions, their production is a transient event aimed at contributing to the elimination of pathogens as well as limiting a redundant immune response by facilitating the clearance of antibodies and immune complexes. Their production can become persistent in case of different chronic infections or diseases, being for instance a fundamental marker for the diagnosis and prognosis of rheumatoid arthritis. Their presence is also associated with aging. Some studies highlighted how elevated levels of rheumatoid factors (RFs) in the blood of patients are correlated with an increased cancer risk, tumor recurrence, and load and with a reduced response to anti-tumor immunotherapies. In line with their physiological roles, RFs showed in different works the ability to impair in vitro anti-cancer immune responses and effector functions, suggesting their potential immunosuppressive activity in the context of tumor immunity. Thus, the aim of this review is to investigate the emerging role of RFs as determiners of cancer faith.
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Affiliation(s)
- Alessio Ugolini
- Department of Experimental Medicine, “Sapienza” University of Rome, Viale Regina Elena 324, 00161 Rome, Italy;
- Department of Immunology, H. Lee Moffitt Cancer Center, Tampa, FL 33612, USA
| | - Marianna Nuti
- Department of Experimental Medicine, “Sapienza” University of Rome, Viale Regina Elena 324, 00161 Rome, Italy;
- Correspondence:
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Westerlind H, Rönnelid J, Hansson M, Alfredsson L, Mathsson-Alm L, Serre G, Cornillet M, Holmdahl R, Jakobsson PJ, Skriner K, Klareskog L, Saevarsdottir S, Askling J. Anti-Citrullinated Protein Antibody Specificities, Rheumatoid Factor Isotypes, and Incident Cardiovascular Events in Patients With Rheumatoid Arthritis. Arthritis Rheumatol 2020; 72:1658-1667. [PMID: 32475073 DOI: 10.1002/art.41381] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Accepted: 05/21/2020] [Indexed: 01/07/2023]
Abstract
OBJECTIVE To investigate the relationship between anti-citrullinated protein antibodies (ACPAs), specific ACPA subspecificities, rheumatoid factor (RF) isotypes, and incident cardiovascular (CV) events in patients with rheumatoid arthritis (RA). METHODS Serum samples from Swedish patients with new-onset RA (diagnosed within 1 year of symptom onset between 1996 and 2009) were centrally typed for anti-cyclic citrullinated peptide 2 (anti-CCP2) antibodies, 20 ACPA subspecificities, and RF isotypes. Patients were followed up longitudinally in nationwide registers to monitor the occurrence of acute coronary syndrome (ACS), stroke, CV-related death, and major adverse CV events (MACE). The association between each serologic marker and CV outcome, and the impact of adjustment for the Disease Activity Score in 28 joints (DAS28), smoking status, and income at baseline, were assessed using Cox proportional hazards models. In addition, associations of serologic markers with all-cause mortality were explored. RESULTS In total, 2,814 patients with RA were included in the study. The median follow-up was 13 years, during which the CV end points of ACS, stroke, or CV-related death were reported to occur in 375 patients. Occurrence and/or levels of anti-CCP2 were associated with risk of incident ACS (hazard ratio [HR] 1.46, 95% confidence interval [95% CI] 1.03-2.06), stroke (HR 1.47, 95% CI 1.03-2.10), CV-related death (P = 0.024 for association with anti-CCP2 levels), and MACE (HR 1.34, 95% CI 1.06-1.70). Similarly, an association with the number of ACPA subspecificities was observed; however, this could not be attributed to any individual or group of ACPA subspecificities. Presence of IgM-RF was associated with all CV end points except ACS, and IgA-RF was exclusively associated with CV-related death. Adjustment for smoking status, income, and DAS28 scores decreased most of the HRs, whereas IgA-RF remained associated with CV-related death (HR 1.61, 95% CI 1.05-2.48). All of the assessed serologic makers were associated with all-cause mortality. CONCLUSION RF isotypes and ACPAs are associated with future CV events in patients with RA. ACPA levels and number of subspecificities seem more important than the occurrence of particular subspecificities, and these associations were not explained by a history of ever smoking.
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Affiliation(s)
| | | | - Monika Hansson
- Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
| | | | | | - Guy Serre
- Laboratory of Epithelial Differentiation and Rheumatoid Autoimmunity, U1056 INSERM, Toulouse University, Toulouse, France
| | - Martin Cornillet
- Laboratory of Epithelial Differentiation and Rheumatoid Autoimmunity, U1056 INSERM, Toulouse University, Toulouse, France
| | | | | | | | - Lars Klareskog
- Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
| | - Saedis Saevarsdottir
- Karolinska Institutet, Stockholm, Sweden, and University of Iceland School of Health Sciences and Faculty of Medicine, Reykjavik, Iceland
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Park SH, Han X, Lobo F, Kratochvil D, Patel D. A budget impact analysis for making treatment decisions based on anti-cyclic citrullinated peptide (anti-CCP) testing in rheumatoid arthritis. J Med Econ 2020; 23:624-630. [PMID: 32075453 DOI: 10.1080/13696998.2020.1732991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Aim: Given that rheumatoid arthritis (RA) patients with high anti-citrullinated protein antibodies (ACPA) titer values respond well to abatacept, the aim of this study was to estimate the annual budget impact of anti-cyclic citrullinated peptide (anti-CCP) testing and treatment selection based on anti-CCP test results.Materials and methods: Budget impact analysis was conducted for patients with moderate-to-severe RA on biologic or Janus kinase inhibitor (JAKi) treatment from a hypothetical US commercial payer perspective. The following market scenarios were compared: (1) 90% of target patients receive anti-CCP testing and the results of anti-CCP testing do not impact the treatment selection; (2) 100% of target patients receive anti-CCP testing and the results of anti-CCP testing have an impact on treatment selection such that an increased proportion of patients with high titer of ACPA receive abatacept. A hypothetical assumption was made that the use of abatacept would be increased by 2% in Scenario 2 versus 1. Scenario analyses were conducted by varying the target population and rebate rates.Results: In a hypothetical health plan with one million insured adults, 2,181 patients would be on a biologic or JAKi treatment for moderate-to-severe RA. In Scenario 1, the anti-CCP test cost was $186,155 and annual treatment cost was $101,854,295, totaling to $102,040,450. In Scenario 2, the anti-CCP test cost increased by $20,684 and treatment cost increased by $160,467, totaling an overall budget increase of $181,151. This was equivalent to a per member per month (PMPM) increase of $0.015. The budget impact results were consistently negligible across the scenario analyses.Limitations: The analysis only considered testing and medication costs. Some parameters used in the analysis, such as the rebate rates, are not generalizable and health plan-specific.Conclusions: Testing RA patients to learn their ACPA status and increasing use of abatacept among high-titer ACPA patients result in a small increase in the total budget (<2 cents PMPM).
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Affiliation(s)
- Sang Hee Park
- Pharmerit North America LLC - Modeling and Meta-Analysis, Bethesda, MD, USA
| | - Xue Han
- Bristol-Myers Squibb Co - US Health Economics and Outcomes Research, Lawrence Township, NJ, USA
| | - Francis Lobo
- Bristol-Myers Squibb Co - US Health Economics and Outcomes Research, Lawrence Township, NJ, USA
| | - David Kratochvil
- Pharmerit North America LLC - Modeling and Meta-Analysis, Bethesda, MD, USA
| | - Dipen Patel
- Pharmerit North America LLC - Modeling and Meta-Analysis, Bethesda, MD, USA
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20
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Alemao E, Bao Y, Weinblatt ME, Shadick N. Association of Seropositivity and Mortality in Rheumatoid Arthritis and the Impact of Treatment With Disease-Modifying Antirheumatic Drugs: Results From a Real-World Study. Arthritis Care Res (Hoboken) 2020; 72:176-183. [PMID: 31529682 PMCID: PMC9328665 DOI: 10.1002/acr.24071] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Accepted: 09/10/2019] [Indexed: 01/09/2023]
Abstract
OBJECTIVE Seropositivity for anti-citrullinated protein antibody (ACPA)/rheumatoid factor (RF) in rheumatoid arthritis (RA) is associated with increased overall mortality; however, the association between antibody titers and mortality is not well established. Investigating relationships between antibody titers and mortality may clarify their role in RA pathogenesis. This study was undertaken to evaluate the association of antibody titers with mortality and its modification by disease-modifying antirheumatic drugs (DMARDs). METHODS Eligible patients with established RA were identified through administrative claims data linked to laboratory results (2005-2016). Patients were categorized by positivity status for ACPA, RF, or both. Patients were further divided into groups by autoantibody titers. DMARD-exposed patients were categorized into biologic DMARD (bDMARD) and conventional DMARD (cDMARD) subcohorts. Crude mortality rates/1,000 patient-years and Kaplan-Meier curves were compared between antibody categories. Adjusted Cox proportional hazards regression and sensitivity (propensity-matched patients) analyses were conducted. RESULTS Overall, 53,849 and 79,926 patients had evaluable ACPA and RF status, respectively. For both autoantibodies, mortality rates were significantly higher in seropositive versus seronegative patients (risk increase of 48.0% and 44.0% in ACPA- and RF-positive patients, respectively; P < 0.001 each). Mortality rates were greatest in patients with higher versus lower autoantibody titers (ACPA hazard ratio [HR] 1.60 [95% confidence interval (95% CI]) 1.45-1.76]; RF HR 1.78 [95% CI 1.66-1.91]). In cDMARD-exposed patients, HRs were higher in seropositive versus seronegative cohorts; in bDMARD-exposed patients, there was no difference in mortality by serostatus. CONCLUSION Elevated ACPA/RF titers were independently associated with increased mortality among patients with RA and persisted in patients treated with cDMARDs but not with bDMARDs.
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Affiliation(s)
- Evo Alemao
- Bristol-Myers Squibb, Princeton, New Jersey
| | - Ying Bao
- Bristol-Myers Squibb, Princeton, New Jersey
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Soluble Lectin-like Oxidized Low-Density Lipoprotein Receptor 1 Predicts the Changes of Rheumatoid Factor Titers in Rheumatoid Arthritis. J Clin Rheumatol 2019; 26:295-300. [PMID: 31397763 DOI: 10.1097/rhu.0000000000001116] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
OBJECTIVE The aim of this longitudinal study was to examine the clinical significance of soluble lectin-like oxidized low-density lipoprotein receptor 1 (sLOX-1) in patients with rheumatoid arthritis. METHODS We gathered demographic and clinical data for a large rheumatoid arthritis cohort at 3 time points. Blood samples were collected at each time point; the number of samples was 282 cases in 2012, 431 cases in 2013, and 500 cases in 2014. Plasma sLOX-1 was measured by enzyme-linked immunosorbent assay. Correlations between sLOX-1 and clinical data were analyzed. Predictive factors associated with changes in sLOX-1 and rheumatoid factor (RF) were analyzed by multivariate linear regression. RESULTS Plasma sLOX-1 level was significantly correlated with RF titer and other clinical parameters. The longitudinal analyses showed that changes in sLOX-1 were significantly correlated with changes in RF titers and with those at baseline. Multivariate linear regression analysis revealed that changes in RF and baseline RF were predictive factors for changes in sLOX-1. Conversely, the changes in RF were significantly correlated with the changes in sLOX-1 in all years. A stepwise regression analysis showed that the change in sLOX-1 was a predictive factor for the change in RF. CONCLUSIONS The change in sLOX-1 has predictive value for assessing the change in RF, indicating the usefulness of sLOX-1 in clinical practice.
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22
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Boeters DM, Burgers LE, Sasso EH, Huizinga TWJ, van der Helm-van Mil AHM. ACPA-negative RA consists of subgroups: patients with high likelihood of achieving sustained DMARD-free remission can be identified by serological markers at disease presentation. Arthritis Res Ther 2019; 21:121. [PMID: 31088574 PMCID: PMC6518725 DOI: 10.1186/s13075-019-1902-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2019] [Accepted: 04/22/2019] [Indexed: 12/28/2022] Open
Abstract
Background Disease-modifying antirheumatic drug (DMARD)-free remission, the sustained absence of synovitis after DMARD cessation, is increasingly achievable, especially in autoantibody-negative rheumatoid arthritis (RA). However, underlying mechanisms are unknown and patient subgroups that achieve this outcome are insufficiently characterized. We evaluated whether serological biomarkers at disease onset, as measured within the multi-biomarker disease activity (MBDA) score, are differently expressed in RA patients who achieve sustained DMARD-free remission. Methods Two hundred ninety-nine RA patients were evaluated for achievement of sustained DMARD-free remission during a median follow-up of 4.3 years. Twelve biomarkers, as included in the MBDA score, were determined from the serum obtained at disease onset. Patients were categorized as having a low (< 30), moderate (30–44) or high (> 44) score. Analyses were stratified for anti-citrullinated protein antibodies (ACPA) based under the assumption that ACPA-positive and ACPA-negative RA are different disease entities. Results Twenty percent achieved sustained DMARD-free remission. Overall, high MBDA scores were associated with achieving DMARD-free remission (high vs. low HR 3.8, 95% CI 1.2–12.2). Among ACPA-negative RA patients, moderate or high scores associated strongly with DMARD-free remission (moderate vs. low HR 9.4, 95% CI 1.2–72.9; high vs. low HR 9.7, 95% CI 1.3–71.1). This association was independent of age and other clinical factors (high vs. low HR 8.2, 95% CI 1.1–61.8). For ACPA-negative RA patients, the biomarkers C-reactive protein, serum amyloid A and matrix metalloproteinase-3 were individually associated with sustained DMARD-free remission. Among ACPA-positive RA patients, scores were not associated with DMARD-free remission. Conclusions ACPA-negative RA patients who achieved sustained DMARD-free remission after treatment withdrawal were characterized by moderate to high MBDA scores at diagnosis. This is the first evidence that ACPA-negative RA can be subdivided in clinically relevant subsets at disease onset using a protein profile. Electronic supplementary material The online version of this article (10.1186/s13075-019-1902-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Debbie M Boeters
- Department of Rheumatology, Leiden University Medical Center, PO Box 9600, 2300 RC, Leiden, the Netherlands.
| | - Leonie E Burgers
- Department of Rheumatology, Leiden University Medical Center, PO Box 9600, 2300 RC, Leiden, the Netherlands
| | - Eric H Sasso
- Crescendo Bioscience, South San Francisco, CA, USA
| | - Tom W J Huizinga
- Department of Rheumatology, Leiden University Medical Center, PO Box 9600, 2300 RC, Leiden, the Netherlands
| | - Annette H M van der Helm-van Mil
- Department of Rheumatology, Leiden University Medical Center, PO Box 9600, 2300 RC, Leiden, the Netherlands.,Department of Rheumatology, Erasmus University Medical Center, Rotterdam, the Netherlands
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Frias MA, Virzi J, Batuca J, Pagano S, Satta N, Delgado Alves J, Vuilleumier N. ELISA methods comparison for the detection of auto-antibodies against apolipoprotein A1. J Immunol Methods 2019; 469:33-41. [PMID: 30926534 DOI: 10.1016/j.jim.2019.03.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Revised: 03/25/2019] [Accepted: 03/25/2019] [Indexed: 01/20/2023]
Abstract
BACKGROUND Autoantibodies against apolipoprotein A1 (anti-apoA1 IgG) have emerged as an independent biomarker for cardiovascular disease and mortality. Across studies, different ELISA methods have been used to measure the level of circulating anti-apoA1 IgG which could lead to substantial result differences between assays. OBJECTIVES To make a comparative study of available anti-apoA1 IgG detection methods and to determine whether the choice of matrix sample (serum vs plasma) could influence the results. METHODS Blood samples were obtained from 160 healthy blood donors and collected on 4 different matrixes (serum, plasma-EDTA, -citrate, -lithium-heparinate). Anti-apoA1 IgG was measured using two homemade (Geneva's and Lisbon's) and one commercial ELISA kits. Passing-Bablok and Bland-Altman were used to compare the results. Anti-apoA1 IgG seropositivity cut-offs were defined according to the user's/manufacturer's criterion. RESULTS The current results showed substantial differences between those 3 assays. The dynamic ranges were significantly different, the commercial kit displaying the narrowest one. Passing-Bablok analysis demonstrated important proportional and constant biases between assays. The anti-apoA1 IgG seropositivity rate in Geneva, Lisbon and commercial assays varied between 24.5% and 1.9%. Matrix comparisons demonstrated that the matrix choice (plasma versus serum) influenced anti-apoA1 IgG results as well as the seropositivity rate in an assay-dependent manner. The coating antigen source was identified as important factor underlying results heterogeneity across assays. CONCLUSIONS These results highlight the impact of the method and the cut-off used on anti-apoA1 IgG results and emphasize the need of standardizing existing assays. Given the important matrix influence, we suggest to use serum as matrix of choice.
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Affiliation(s)
- Miguel A Frias
- Division of Laboratory Medicine, Diagnostic Department, Geneva University Hospitals, 4 rue Gabrielle-Perret-Gentil, 1205 Geneva, Switzerland; Department of Medical Specialties, Faculty of Medicine, University of Geneva, 1 rue Michel Servet, 1205 Geneva, Switzerland.
| | - Julien Virzi
- Division of Laboratory Medicine, Diagnostic Department, Geneva University Hospitals, 4 rue Gabrielle-Perret-Gentil, 1205 Geneva, Switzerland; Department of Medical Specialties, Faculty of Medicine, University of Geneva, 1 rue Michel Servet, 1205 Geneva, Switzerland
| | - Joana Batuca
- CEDOC, NOVA Medical School
- Faculdade de Ciências Médicas, Universidade NOVA de Lisboa, Lisboa, Portugal
| | - Sabrina Pagano
- Division of Laboratory Medicine, Diagnostic Department, Geneva University Hospitals, 4 rue Gabrielle-Perret-Gentil, 1205 Geneva, Switzerland; Department of Medical Specialties, Faculty of Medicine, University of Geneva, 1 rue Michel Servet, 1205 Geneva, Switzerland
| | - Natahlie Satta
- Division of Laboratory Medicine, Diagnostic Department, Geneva University Hospitals, 4 rue Gabrielle-Perret-Gentil, 1205 Geneva, Switzerland; Department of Medical Specialties, Faculty of Medicine, University of Geneva, 1 rue Michel Servet, 1205 Geneva, Switzerland
| | - Jose Delgado Alves
- CEDOC, NOVA Medical School
- Faculdade de Ciências Médicas, Universidade NOVA de Lisboa, Lisboa, Portugal; Department of Medicine IV/Immune-mediated Systemic Diseases Unit, Fernando Fonseca Hospital, Amadora, Portugal
| | - Nicolas Vuilleumier
- Division of Laboratory Medicine, Diagnostic Department, Geneva University Hospitals, 4 rue Gabrielle-Perret-Gentil, 1205 Geneva, Switzerland; Department of Medical Specialties, Faculty of Medicine, University of Geneva, 1 rue Michel Servet, 1205 Geneva, Switzerland
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Comparative Effectiveness of Abatacept Versus Tumor Necrosis Factor Inhibitors in Patients with Rheumatoid Arthritis Who Are Anti-CCP Positive in the United States Corrona Registry. Rheumatol Ther 2019; 6:217-230. [PMID: 30868550 PMCID: PMC6513934 DOI: 10.1007/s40744-019-0149-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Indexed: 02/07/2023] Open
Abstract
Introduction Anti-citrullinated protein antibodies (ACPAs) are highly specific serological biomarkers that are indicative of a poor prognosis in patients with rheumatoid arthritis (RA). The effectiveness of biologic disease-modifying antirheumatic drugs (bDMARDs) with different mechanisms of action may vary, based on patients’ serostatus. The aim of this study is to compare the effectiveness of abatacept versus tumor necrosis factor inhibitors (TNFis) in patients with RA who were anti-cyclic citrullinated peptide antibody positive (anti-CCP+). Methods Abatacept or TNFi initiators with anti-CCP+ status (≥ 20 U/ml) at or prior to treatment initiation were identified from a large observational US cohort (1 December 2005–31 August 2016). Using propensity score matching (1:1), stratified by prior TNFi use (0, 1 and ≥ 2), effectiveness at 6 months after initiation was evaluated. Primary outcome was mean change in Clinical Disease Activity Index (CDAI) score. Secondary outcomes included achievement of remission (CDAI ≤ 2.8), low disease activity/remission (CDAI ≤ 10), modified American College of Rheumatology 20/50/70 responses and mean change in modified Health Assessment Questionnaire score. Results After propensity score matching, the baseline characteristics between 330 pairs of abatacept and TNFi initiators (biologic naïve, n = 97; TNFi experienced, n = 233) were well balanced with absolute value standardized differences of ≤ 0.1. Both overall, and in the biologic-naïve cohort, there were no significant differences in mean change in CDAI score at 6 months. However, in the TNFi-experienced cohort, there was a significantly greater improvement in CDAI score at 6 months with abatacept versus TNFi initiators (p = 0.033). Secondary outcomes showed similar trends. Conclusions Improvements in clinical disease activity were seen in anti-CCP+ abatacept and TNFi initiators. TNFi-experienced anti-CCP+ patients with RA had more improvement in disease activity with abatacept versus TNFis, whereas outcomes were similar between treatments in the overall population and in biologic-naïve patients. Trial Registration ClinicalTrials.gov identifier: NCT01625650. Funding This study is sponsored by Corrona, LLC and funded by Bristol-Myers Squibb. Bristol-Myers Squibb funded the publication of this manuscript. Electronic supplementary material The online version of this article (10.1007/s40744-019-0149-3) contains supplementary material, which is available to authorized users.
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Abstract
Inflammatory arthritis encompasses a set of common diseases characterized by immune-mediated attack on joint tissues. Most but not all affected patients manifest circulating autoantibodies. Decades of study in human and animal arthritis have identified key roles for autoantibodies in immune complexes and through direct modulation of articular biology. However, joint inflammation can arise because of pathogenic T cells and other pathways that are antibody-independent. Here we review the evidence for these parallel tracks, in animal models and in humans, to explore the range of mechanisms engaged in the pathophysiology of arthritis and to highlight opportunities for targeted therapeutic intervention.
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Affiliation(s)
- Margaret H. Chang
- Department of Medicine, Division of Immunology, Boston Children’s Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Peter A. Nigrovic
- Department of Medicine, Division of Immunology, Boston Children’s Hospital, Harvard Medical School, Boston, Massachusetts, USA
- Department of Medicine, Division of Rheumatology, Immunology and Allergy, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA
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Balogh E, Pusztai A, Hamar A, Végh E, Szamosi S, Kerekes G, McCormick J, Biniecka M, Szántó S, Szűcs G, Nagy Z, Fearon U, Veale DJ, Szekanecz Z. Autoimmune and angiogenic biomarkers in autoimmune atherosclerosis. Clin Immunol 2019; 199:47-51. [DOI: 10.1016/j.clim.2018.12.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Kim SU, Kim BK, Park JY, Kim DY, Ahn SH, Park YB, Han KH, Lee SW. Fibrosis-4 index at diagnosis can predict all-cause mortality in patients with rheumatoid arthritis: A retrospective monocentric study. Mod Rheumatol 2019; 30:70-77. [PMID: 30557057 DOI: 10.1080/14397595.2018.1558760] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Seung Up Kim
- Department of Internal Medicine, Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Republic of Korea
- Yonsei Liver Center, Severance Hospital, Seoul, Republic of Korea
| | - Beom Kyung Kim
- Department of Internal Medicine, Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Republic of Korea
- Yonsei Liver Center, Severance Hospital, Seoul, Republic of Korea
| | - Jun Yong Park
- Department of Internal Medicine, Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Republic of Korea
- Yonsei Liver Center, Severance Hospital, Seoul, Republic of Korea
| | - Do Young Kim
- Department of Internal Medicine, Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Republic of Korea
- Yonsei Liver Center, Severance Hospital, Seoul, Republic of Korea
| | - Sang Hoon Ahn
- Department of Internal Medicine, Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Republic of Korea
- Yonsei Liver Center, Severance Hospital, Seoul, Republic of Korea
| | - Yong-Beom Park
- Division of Rheumatology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
- Yonsei University College of Medicine, Institute for Immunology and Immunological Diseases, Seoul, Republic of Korea
| | - Kwang-Hyub Han
- Department of Internal Medicine, Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Republic of Korea
- Yonsei Liver Center, Severance Hospital, Seoul, Republic of Korea
| | - Sang-Won Lee
- Division of Rheumatology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
- Yonsei University College of Medicine, Institute for Immunology and Immunological Diseases, Seoul, Republic of Korea
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Yu HC, Lu MC. The roles of anti-citrullinated protein antibodies in the immunopathogenesis of rheumatoid arthritis. Tzu Chi Med J 2019; 31:5-10. [PMID: 30692825 PMCID: PMC6334572 DOI: 10.4103/tcmj.tcmj_116_18] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Rheumatoid arthritis (RA) is a common systemic autoimmune disease. Its major manifestation is persistent joint inflammation, which can lead to bone destruction and severe disability. The immunopathogenesis of RA is very complex, involving both innate and adaptive immune systems. Recently, the discovery of anti-citrullinated protein antibodies (ACPAs) has revolutionized the diagnosis and our understanding of the immunopathogenesis of RA. The presence of ACPAs is also closely linked to the disease activity of RA. Therefore, it is reasonable to believe that ACPAs and protein citrullination are key issues for the development of RA. We have summarized the recent study results in this review. The first theory concerning the pathogenesis of RA proposed that ACPAs link the well-known genetic and environmental risk factors for developing RA. However, due to the close association between joint inflammation and ACPAs, a more direct role of ACPAs in the immunopathogenesis of RA is anticipated. Within the past 10 years, many studies, including some of our own, have shown that ACPAs can promote an inflammatory response through complement activation, formation of neutrophil extracellular traps, and direct binding to key players, including monocytes, osteoclasts, and osteoblasts, in the mediation of bone destruction in the joints of RA patients. We also present some new perspectives and issues that need to be further investigated.
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Affiliation(s)
- Hui-Chun Yu
- Division of Allergy, Immunology and Rheumatology, Dalin Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Chiayi, Taiwan
| | - Ming-Chi Lu
- Division of Allergy, Immunology and Rheumatology, Dalin Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Chiayi, Taiwan.,School of Medicine, Tzu Chi University, Hualien, Taiwan
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Hafström I, Ajeganova S, Andersson MLE, Bala SV, Bergman S, Bremander A, Forslind K, Malm K, Svensson B. A Swedish register-based, long-term inception cohort study of patients with rheumatoid arthritis - results of clinical relevance. Open Access Rheumatol 2019; 11:207-217. [PMID: 31565006 PMCID: PMC6744369 DOI: 10.2147/oarrr.s218448] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Accepted: 08/13/2019] [Indexed: 12/20/2022] Open
Abstract
PURPOSE At the end of the twentieth century, the outcome of rheumatoid arthritis (RA) was shown to be unsatisfactory and new therapeutic strategies were introduced. This initiated a register-based long-term study of early RA, the Better Anti-Rheumatic PharmacOTherapy (BARFOT) study. The aims were to evaluate the disease course and to acquire knowledge for improved care. PATIENTS AND METHODS BARFOT is a multicentre observational study of patients with early RA, consecutively included 1992-2006. The patients are followed in daily practice according to a structured protocol for 15 years and data recorded in a web-based register. Also, through linkage of the BARFOT register to national registers we have acquired information on comorbidity and mortality. RESULTS In all, 2857 patients have been included and over 80 scientific articles have been published. Phenotypic characteristics at disease onset, i.e. gender, smoking habits and autoantibody profiles have been addressed. The disease course over 15 years was described. Early predictors for persistent disease activity, impaired function, joint damage and co-morbidities have been identified. Treatment strategies have been studied. A randomized sub-study gave strong support for the treatment of recent RA with low-dose prednisolone in combination with disease-modifying anti-rheumatic drug. Furthermore, the impact of lifestyle factors, such as smoking, alcohol consumption, body weight and physical activity has been addressed. CONCLUSION A register-based study like BARFOT has provided a basis for optimal long-term management of patients with RA. In addition, the register has made it possible to perform a diversity of studies of RA addressing various issues of major relevance to the patients.
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Affiliation(s)
- Ingiäld Hafström
- Division of Gastroenterology and Rheumatology, Department of Medicine Huddinge, Karolinska Institutet, and Rheumatology Unit, Karolinska University Hospital, Stockholm, Sweden
- Correspondence: Ingiäld HafströmRheumatology Unit, R92, Karolinska University Hospital, 141 86Stockholm, SwedenTel +46 73 699 6235Email
| | - Sofia Ajeganova
- Division of Gastroenterology and Rheumatology, Department of Medicine Huddinge, Karolinska Institutet, Stockholm, Sweden
- Rheumatology Division, Universitair Ziekenhuis Brussel, Vrije Universiteit Brussel, Brussels, Belgium
| | - Maria LE Andersson
- Faculty of Medicine, Department of Clinical Sciences, Rheumatology, Lund University, Lund, Sweden
- Spenshult Research and Development Center, Halmstad, Sweden
| | - Sidona-Valentina Bala
- Faculty of Medicine, Department of Health Sciences, Lund University, Lund, Sweden
- Department of Medicine, Section of Rheumatology, Helsingborg’s Hospital, Helsingborg, Sweden
| | - Stefan Bergman
- Spenshult Research and Development Center, Halmstad, Sweden
- Primary Health Care Unit, Department of Public Health and Community Medicine, Institute of Medicine, the Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Ann Bremander
- Faculty of Medicine, Department of Clinical Sciences, Rheumatology, Lund University, Lund, Sweden
- Spenshult Research and Development Center, Halmstad, Sweden
- Department of Regional Health Research, University of Southern Denmark, Odense, Denmark
| | - Kristina Forslind
- Faculty of Medicine, Department of Clinical Sciences, Rheumatology, Lund University, Lund, Sweden
- Department of Research and Education, Skånevård Sund, Region Skåne, Helsingborg´s Hospital, Helsingborg, Sweden
| | - Karina Malm
- Spenshult Research and Development Center, Halmstad, Sweden
- Rheumatology, Capio Movement, Halmstad, Sweden
| | - Björn Svensson
- Faculty of Medicine, Department of Clinical Sciences, Rheumatology, Lund University, Lund, Sweden
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Bugatti S, Manzo A, Montecucco C, Caporali R. The Clinical Value of Autoantibodies in Rheumatoid Arthritis. Front Med (Lausanne) 2018; 5:339. [PMID: 30560132 PMCID: PMC6287017 DOI: 10.3389/fmed.2018.00339] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2018] [Accepted: 11/19/2018] [Indexed: 12/20/2022] Open
Abstract
Rheumatoid arthritis (RA) is a highly heterogeneous syndrome in terms of clinical presentation, progression, and response to therapy. In such a complicated context, the identification of disease-related biomarkers would be undoubtedly helpful in assisting tailored approaches for every patient. Despite remarkable efforts, however, progress in new biomarker development and validation is dramatically slow. At present, none of the candidate genetic, cellular, or molecular biomarker has yet surpassed the clinical value of RA-specific autoantibodies, including rheumatoid factor (RF) and anti-citrullinated protein autoantibodies (ACPA). Rather, recent years have witnessed significant advancements in our understanding of the multiple roles that RF and ACPA play in RA pathophysiology. This has helped clarifying the mechanistic basis of the clinical associations of autoantibodies in RA. In this short review, we will briefly summarize the effector functions of RF and ACPA, and analyse how autoantibodies may help subclassifying RA patients in terms of clinical presentation and response to therapy.
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Affiliation(s)
- Serena Bugatti
- Division of Rheumatology and Early Arthritis Clinic, IRCCS Policlinico San Matteo Foundation, University of Pavia, Pavia, Italy
| | - Antonio Manzo
- Division of Rheumatology and Early Arthritis Clinic, IRCCS Policlinico San Matteo Foundation, University of Pavia, Pavia, Italy
| | - Carlomaurizio Montecucco
- Division of Rheumatology and Early Arthritis Clinic, IRCCS Policlinico San Matteo Foundation, University of Pavia, Pavia, Italy
| | - Roberto Caporali
- Division of Rheumatology and Early Arthritis Clinic, IRCCS Policlinico San Matteo Foundation, University of Pavia, Pavia, Italy
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Verheul MK, Böhringer S, van Delft MAM, Jones JD, Rigby WFC, Gan RW, Holers VM, Edison JD, Deane KD, Janssen KMJ, Westra J, Brink M, Rantapää-Dahlqvist S, Huizinga TWJ, van der Helm-van Mil AHM, van der Woude D, Toes REM, Trouw LA. Triple Positivity for Anti-Citrullinated Protein Autoantibodies, Rheumatoid Factor, and Anti-Carbamylated Protein Antibodies Conferring High Specificity for Rheumatoid Arthritis: Implications for Very Early Identification of At-Risk Individuals. Arthritis Rheumatol 2018; 70:1721-1731. [PMID: 29781231 DOI: 10.1002/art.40562] [Citation(s) in RCA: 77] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Accepted: 05/15/2018] [Indexed: 12/22/2022]
Abstract
OBJECTIVE In rheumatoid arthritis (RA), anti-citrullinated protein antibodies (ACPAs) and rheumatoid factor (RF) are commonly used to aid in the diagnosis. Although these autoantibodies are mainly found in RA, their specificity is not optimal. It is therefore difficult to identify RA patients, especially in very early disease, based on the presence of ACPAs and RF alone. In addition, anti-carbamylated protein (anti-CarP) antibodies have diagnostic and prognostic value, since their presence is associated with joint damage in RA patients and also associated with the future development of RA in patients with arthralgia. Therefore, the aim of the present study was to investigate the value of combined antibody testing in relation to prediction and diagnosis of (early) RA. METHODS A literature search resulted in identification of 12 relevant studies, consisting of RA patients, pre-RA individuals, disease controls, healthy first-degree relatives of RA patients, and healthy control subjects, in which data on RF, ACPAs, and anti-CarP antibody status were available. Using these data, random effects meta-analyses were carried out for several antibody combinations. RESULTS The individual antibodies were highly prevalent in patients with RA (34-80%) compared to the control groups, but were also present in non-RA controls (0-23%). For the classification of most subjects correctly as having RA or as a non-RA control, the combination of ACPAs and/or RF often performed well (specificity 65-100%, sensitivity 59-88%). However, triple positivity for ACPAs, RF, and anti-CarP antibodies resulted in a higher specificity for RA (98-100%), accompanied by a lower sensitivity (11-39%). CONCLUSION As the rheumatology field is moving toward very early identification of RA and possible screening for individuals at maximum risk of RA in populations with a low pretest probability, an autoantibody profile of triple positivity for ACPAs, RF, and anti-CarP provides interesting information that might help identify individuals at risk of developing RA.
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Affiliation(s)
| | | | | | | | | | - Ryan W Gan
- Colorado School of Public Health, Aurora
| | | | - Jess D Edison
- Walter Reed National Military Medical Center, Bethesda, Maryland
| | | | - Koen M J Janssen
- University of Groningen and University Medical Center Groningen, Groningen, The Netherlands
| | - Johanna Westra
- University of Groningen and University Medical Center Groningen, Groningen, The Netherlands
| | | | | | | | | | | | - Rene E M Toes
- Leiden University Medical Center, Leiden, The Netherlands
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Boer AC, Boonen A, van der Helm van Mil AHM. Is Anti-Citrullinated Protein Antibody-Positive Rheumatoid Arthritis Still a More Severe Disease Than Anti-Citrullinated Protein Antibody-Negative Rheumatoid Arthritis? A Longitudinal Cohort Study in Rheumatoid Arthritis Patients Diagnosed From 2000 Onward. Arthritis Care Res (Hoboken) 2018; 70:987-996. [PMID: 29266813 PMCID: PMC6033104 DOI: 10.1002/acr.23497] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2017] [Accepted: 12/12/2017] [Indexed: 11/19/2022]
Abstract
Objective Because of its association with joint destruction, anti–citrullinated protein antibody (ACPA)–positive rheumatoid arthritis (RA) is considered to be more severe than ACPA‐negative RA. Clinically relevant joint destruction is now infrequent thanks to adequate disease suppression. According to patients, important outcomes are pain, fatigue, and independence. We evaluated whether ACPA‐positive RA patients diagnosed during or after 2000 have more severe self‐reported limitations and impairments, including restrictions at work, than ACPA‐negative RA patients. Methods A total of 492 ACPA‐positive and 450 ACPA‐negative RA patients who fulfilled the 2010 criteria and were included in the Leiden Early Arthritis Clinic cohort during or after 2000 were compared for self‐reported pain, fatigue, disease activity, general well‐being (measured by numerical rating scales), physical function (measured by the Health Assessment Questionnaire), and work restrictions, including absenteeism at baseline and during the 4‐year followup. Linear mixed models were used. Results At disease presentation, ACPA‐negative patients had more severe pain, fatigue, self‐reported disease activity scores, and functional disability (P < 0.05), although absolute differences were small. During followup, ACPA‐negative patients remained somewhat more fatigued (P = 0.002), whereas other patient‐reported impairments and limitations were similar. Thirty‐eight percent of ACPA‐negative and 48% of ACPA‐positive patients reported absenteeism (P = 0.30), with median 4 days missed in both groups in the last 3 months. Also, restrictions at work among employed patients and restrictions with household work were not statistically different at baseline and during followup. Conclusion In current rheumatology practice, ACPA‐positive RA is not more severe than ACPA‐negative RA in terms of patients’ relevant outcomes, including physical functioning and restrictions at work. This implies that efforts to further improve the disease course should be proportional to both disease subsets.
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Affiliation(s)
- Aleid C. Boer
- Leiden University Medical CenterLeidenThe Netherlands
| | - Annelies Boonen
- Care and Public Health Research Institute, and Maastricht University Medical CenterMaastrichtThe Netherlands
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Murphy D, Bellis K, Hutchinson D. Vapour, gas, dust and fume occupational exposures in male patients with rheumatoid arthritis resident in Cornwall (UK) and their association with rheumatoid factor and anti-cyclic protein antibodies: a retrospective clinical study. BMJ Open 2018; 8:e021754. [PMID: 29773705 PMCID: PMC5961584 DOI: 10.1136/bmjopen-2018-021754] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
OBJECTIVES To quantify exposure to vapour, gas, dust and fumes (VGDF) and smoking in male rheumatoid arthritis (RA) and investigate impact on rheumatoid factor (RF) and anti-citrullinated protein antibody (ACPA) levels. DESIGN A retrospective observational study. SETTING The Royal Cornwall Hospital Trust, UK. A single university hospital setting. PARTICIPANTS 726 men followed up between February 2015 and August 2016, fulfilling RA diagnostic criteria. MAIN OUTCOME MEASURES Prevalence of VGDF exposure and smoking prior to RA diagnosis. Determination of association between VGDF, smoking and autoantibody levels. RESULTS 546/726 (75%) had been exposed to VGDF for >1 year. 561/726 (77%) had been smokers. Only 58/726 (8%) had no exposure to VGDF and had never smoked. A significant difference in RF levels was observed between unexposed and VGDF exposed never smokers (median RF 24 vs 36, p=0.03), more marked when comparing unexposed with ≥2 VGDF exposures (median RF 24 vs 57, p=0.02). A significant difference in RF levels was also observed between unexposed and VGDF exposed smokers (median RF 71 vs RF 95, p=0.04), more marked when comparing unexposed with ≥2 VGDF exposures (median RF 71 vs RF 113, p=0.01). A significant difference in RF titre was observed between never smokers >2 VGDF exposures and smokers with >2 VGDF exposures (RF 57 vs RF 113, p=0.02). No association of ACPA seropositivity rates or titres with VGDF exposure was observed. Smokers with >2 VGDF exposures had a significantly lower age of RA diagnosis than smokers with no VGDF exposure (53 years vs 57 years, p=0.03). All results remained similar when corrected for social class. CONCLUSIONS VGDF exposure increases RF levels. Combination exposure to smoking and VDGF results in higher RF levels, particularly with multiple exposures. These compelling findings demonstrate the importance of combined inhaled exposures in RF generation.
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Affiliation(s)
- Dan Murphy
- Rheumatology Department, Royal Cornwall Hospital, Truro, Cornwall, UK
- University of Exeter Medical School Cornwall Campus, Royal Cornwall Hospital, Knowledge Spa, Truro, Cornwall, UK
| | - Katy Bellis
- Rheumatology Department, Royal Cornwall Hospital, Truro, Cornwall, UK
| | - David Hutchinson
- Rheumatology Department, Royal Cornwall Hospital, Truro, Cornwall, UK
- University of Exeter Medical School Cornwall Campus, Royal Cornwall Hospital, Knowledge Spa, Truro, Cornwall, UK
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Othman MA, Ghazali WSW, Hamid WZWA, Wong KK, Yahya NK. Anti-carbamylated protein antibodies in rheumatoid arthritis patients and their association with rheumatoid factor. Saudi Med J 2018; 38:934-941. [PMID: 28889152 PMCID: PMC5654028 DOI: 10.15537/smj.2017.9.20841] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Objectives: To evaluate levels of anti-carbamylated protein (anti-CarP) antibodies in rheumatoid arthritis (RA) patients and to determine their association with serological parameters and disease activity. Methods: A cross-sectional study involving 105 multiethnic RA patients (48 rheumatoid factor [RF]-positive and 57 RF-negative patients) was conducted at Hospital Universiti Sains Malaysia, Kelantan, Malaysia, from January 2015 to February 2016. Fifty healthy controls (HCs) were included. C-reactive protein (CRP), RF, anti-cyclic citrullinated peptide (anti-CCP) and anti-CarP antibodies were measured. A health assessment questionnaire (HAQ) was administered to the study participants and 28-joint Disease Activity Score (DAS28) were obtained. Results: The level of anti-CarP antibodies was significantly increased in the RA patients compared with HCs (p=0.042). The presence of anti-CarP antibodies was significantly associated with RF (p=0.019) and the HAQ (p=0.010). A significant association between the presence of anti-CarP antibodies and the DAS28 was not found (p=0.632). Conclusion: Our study provides further evidence that the level of anti-CarP antibodies is significantly elevated in RA patients.
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Affiliation(s)
- Maizatul A Othman
- Department of Immunology, School of Medical Sciences, Health Campus, Universiti Sains Malaysia, Kelantan, Malaysia. E-mail.
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Boeters DM, Nieuwenhuis WP, van Steenbergen HW, Reijnierse M, Landewé RBM, van der Helm-van Mil AHM. Are MRI-detected erosions specific for RA? A large explorative cross-sectional study. Ann Rheum Dis 2018; 77:861-868. [PMID: 29490980 DOI: 10.1136/annrheumdis-2017-212252] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2017] [Revised: 01/30/2018] [Accepted: 02/08/2018] [Indexed: 12/29/2022]
Abstract
OBJECTIVES MRI is recommended in the diagnostic process of rheumatoid arthritis (RA) to detect joint damage early. MRI-detected erosions are also present in symptom-free controls, especially at older age. It is unclear if RA-specific MRI-detected erosions can be distinguished from 'physiological' erosions in symptom-free individuals. This study compared MRI-detected erosions of patients with RA with healthy controls and with other arthritides. METHODS 589 newly presenting patients with early arthritis (238 RA, 351 other arthritides) and 193 symptom-free controls underwent contrast-enhanced 1.5T MRI of unilateral metacarpophalangeal and metatarsophalangeal (MTP) joints. Total erosion score (according to the Rheumatoid Arthritis MRI Scoring System), number, severity, location of erosions and simultaneous presence of MRI-detected inflammation (synovitis and/or bone marrow oedema) were compared; participants were categorised in three age groups (<40, 40-59, ≥60). RESULTS Patients with RA had statistically significant higher total erosion scores than controls but scores of individual persons largely overlapped. Grade ≥2 erosions and MTP5 erosions were specific for RA (specificity 98%-100% and 90%-98% for different age groups). MTP1 erosions were only specific if aged <40 (specificity 98%) and erosions with inflammation if aged <60 (specificity 91%-100%). ≥1 of the mentioned erosion characteristics were present in 29% of patients with RA. Comparing patients with RA with other arthritides revealed that grade ≥2 erosions and MTP5 erosions remained specific for RA (specificity ≥89%) as well as MTP1 erosions if aged <40 (specificity 93%), in contrast to erosions combined with inflammation (specificity 49%-85%). CONCLUSIONS Total erosion scores of individual persons were largely overlapping. Erosion characteristics specific for RA were identified, but were infrequently present. Caution is needed not to overestimate the value of MRI erosions in the diagnostic process.
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Affiliation(s)
- Debbie M Boeters
- Department of Rheumatology, Leiden University Medical Center, Leiden, The Netherlands
| | - Wouter P Nieuwenhuis
- Department of Rheumatology, Leiden University Medical Center, Leiden, The Netherlands
| | | | - Monique Reijnierse
- Department of Radiology, Leiden University Medical Center, Leiden, The Netherlands
| | - Robert B M Landewé
- Department of Clinical Rheumatology and Immunology, Amsterdam Medical Center Amsterdam and Atrium Medical Center Heerlen, Heerlen, The Netherlands
| | - Annette H M van der Helm-van Mil
- Department of Rheumatology, Leiden University Medical Center, Leiden, The Netherlands.,Department of Rheumatology, Erasmus University Medical Center, Rotterdam, The Netherlands
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Truchetet ME, Dublanc S, Barnetche T, Vittecoq O, Mariette X, Richez C, Blanco P, Mahler M, Contin-Bordes C, Schaeverbeke T. Association of the Presence of Anti-Carbamylated Protein Antibodies in Early Arthritis With a Poorer Clinical and Radiologic Outcome. Arthritis Rheumatol 2017; 69:2292-2302. [DOI: 10.1002/art.40237] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Accepted: 08/18/2017] [Indexed: 01/28/2023]
Affiliation(s)
- Marie-Elise Truchetet
- Bordeaux University Hospital and Immunoconcept; CNRS; UMR 5164; Bordeaux University; Bordeaux France
| | | | | | | | - Xavier Mariette
- Université Paris-Sud; Hôpitaux Universitaires Paris-Sud, AP-HP, Institut National de la Santé et de la Recherche Médicale (INSERM) U1184; Centre for Immunology of Viral Infections and Autoimmune Diseases; Le Kremlin Bicêtre France
| | - Christophe Richez
- Bordeaux University Hospital and Immunoconcept; CNRS; UMR 5164; Bordeaux University; Bordeaux France
| | - Patrick Blanco
- Immunoconcept, CNRS UMR 5164, Bordeaux University, and Bordeaux University Hospital; Bordeaux France
| | | | - Cécile Contin-Bordes
- Immunoconcept, CNRS UMR 5164, Bordeaux University, and Bordeaux University Hospital; Bordeaux France
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Value of Measuring Anti-Carbamylated Protein Antibodies for Classification on Early Arthritis Patients. Sci Rep 2017; 7:12023. [PMID: 28931886 PMCID: PMC5607236 DOI: 10.1038/s41598-017-09657-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Accepted: 07/27/2017] [Indexed: 01/30/2023] Open
Abstract
Classification of patients with rheumatoid arthritis (RA) as quickly as possible improves their prognosis. This reason motivates specially dedicated early arthritis (EA) clinics. Here, we have used 1062 EA patients with two years of follow-up to explore the value of anti-carbamylated protein (anti-CarP) antibodies, a new type of RA specific autoantibodies, for classification. Specifically, we aimed to determine whether the addition of anti-CarP antibodies to IgM rheumatoid factor (RF) and anti-cyclic citrullinated peptide (anti-CCP) antibodies, which are helpful in RA classification, improves it or not. Our analysis showed that incorporation of the anti-CarP antibodies to combinations of the other two antibodies (all joint by the OR Boolean operator) produces a modest increase in sensitivity (2.2% higher), at the cost of decreased specificity (8.1% lower). The cost-benefit ratio was more favorable in the patients lacking the other autoantibodies. However, it did not improve by considering different titer levels of the anti-CarP antibodies, or after exhaustively exploring other antibody combinations. Therefore, the place in RA classification of these antibodies is questionable in the context of current treatments and biomarkers. This conclusion does not exclude their potential value for stratifying patients in joint damage, disease activity, disability, or mortality categories.
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Barra LJ, Pope JE, Hitchon C, Boire G, Schieir O, Lin D, Thorne CJ, Tin D, Keystone EC, Haraoui B, Jamal S, Bykerk VP. The effect of rheumatoid arthritis-associated autoantibodies on the incidence of cardiovascular events in a large inception cohort of early inflammatory arthritis. Rheumatology (Oxford) 2017; 56:768-776. [PMID: 28073956 DOI: 10.1093/rheumatology/kew474] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Indexed: 11/13/2022] Open
Abstract
Objective . RA is associated with an increased risk of cardiovascular events (CVEs). The objective was to estimate independent effects of RA autoantibodies on the incident CVEs in patients with early RA. Methods Patients were enrolled in the Canadian Early Inflammatory Arthritis Cohort, a prospective multicentre inception cohort. Incident CVEs, including acute coronary syndromes and cerebrovascular events, were self-reported by the patient and partially validated by medical chart review. Seropositive status was defined as either RF or ACPA positive. Multivariable Cox proportional hazards survival analysis was used to estimate the effects of seropositive status on incident CVEs, controlling for RA clinical variables and traditional cardiovascular risk factors. Results . A total of 2626 patients were included: the mean symptom duration at diagnosis was 6.3 months ( s . d . 4.6), the mean age was 53 years ( s . d . 15), 72% were female and 86% met classification criteria for RA. Forty-six incident CVEs occurred over 6483 person-years [incidence rate 7.1/1000 person-years (95% confidence interval 5.3, 9.4)]. The CVE rate did not differ in seropositive vs seronegative subjects and seropositivity was not associated with incident CVEs in multivariable Cox regression models. Baseline covariates independently associated with incident CVEs were older age, a history of hypertension and a longer duration of RA symptoms prior to diagnosis. Conclusion The rate of CVEs early in the course of inflammatory arthritis was low; however, delays in the diagnosis of arthritis increased the rate of CVEs. Hypertension was the strongest independent risk factor for CVEs. Results support early aggressive management of RA disease activity and co-morbidities to prevent severe complications.
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Affiliation(s)
- Lillian J Barra
- Department of Medicine, Division of Rheumatology, Western University, London, Ontario
| | - Janet E Pope
- Department of Medicine, Division of Rheumatology, Western University, London, Ontario
| | - Carol Hitchon
- Department of Medicine, Division of Rheumatology, University of Manitoba, Winnipeg, Manitoba
| | - Gilles Boire
- Department of Medicine, Division of Rheumatology, Université de Sherbrooke, Sherbrooke, Quebec
| | - Orit Schieir
- Department of Epidemiology, University of Toronto Dalla Lana School of Public Health
| | - Daming Lin
- Department of Medicine, Division of Rheumatology, Mount Sinai Hospital, University of Toronto, Toronto
| | - Carter J Thorne
- Arthritis Program Southlake Regional Health Center, Newmarket, Ontario
| | - Diane Tin
- Arthritis Program Southlake Regional Health Center, Newmarket, Ontario
| | - Edward C Keystone
- Department of Medicine, Division of Rheumatology, Mount Sinai Hospital, University of Toronto, Toronto
| | - Boulos Haraoui
- Department of Medicine, Institut de Rhumatologie de Montréal and University of Montreal, Montreal, Quebec
| | - Shahin Jamal
- Department of Medicine, Vancouver Coastal Health, Vancouver, British Columbia, Canada
| | - Vivian P Bykerk
- Department of Medicine, Division of Rheumatology, Mount Sinai Hospital, University of Toronto, Toronto.,Department of Rheumatology, Hospital for Special Surgery, New York, NY, USA
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Long-term mortality in patients with ST-segment elevation myocardial infarction is associated with anti-citrullinated protein antibodies. Int J Cardiol 2017; 240:20-24. [DOI: 10.1016/j.ijcard.2017.04.046] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Accepted: 04/17/2017] [Indexed: 02/07/2023]
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40
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Vidal-Bralo L, Perez-Pampin E, Regueiro C, Montes A, Varela R, Boveda MD, Gomez-Reino JJ, Gonzalez A. Anti-carbamylated protein autoantibodies associated with mortality in Spanish rheumatoid arthritis patients. PLoS One 2017; 12:e0180144. [PMID: 28672020 PMCID: PMC5495341 DOI: 10.1371/journal.pone.0180144] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Accepted: 06/09/2017] [Indexed: 12/29/2022] Open
Abstract
Patients with rheumatoid arthritis (RA) have an increased mortality rate that is associated with the presence of RA-specific autoantibodies in many studies. However, the relative role of rheumatoid factor (RF), anti-CCP antibodies and the most recently established RA-autoantibodies, directed against carbamylated proteins (anti-CarP antibodies), is unclear. Here, we have assessed the role of these three antibodies in 331 patients with established RA recruited from 2001 to 2009 and followed until November 2015. During this time, 124 patients died (37.5%). This death rate corresponds to a mortality rate 1.53 (95% CI 1.26 to 1.80) folds the observed in the reference population. We used for analysis of all-cause mortality the Cox proportional hazard regression model with adjustment for age, sex and smoking. It showed a trend for association with increased mortality of each of the three RA autoantibodies in antibody-specific analysis (hazards ratio (HR) from 1.37 to 1.79), but only the HR of the anti-CarP antibodies was significant (HR = 1.79, 95% CI 1.23 to 2.61, p = 0.002). In addition, the multivariate analysis that included all autoantibodies showed a marked decrease in the HR of RF and of anti-CCP antibodies, whereas the HR of anti-CarP remained significant. This increase was specific of respiratory system causes of death (HR = 3.19, 95% CI 1.52 to 6.69, p = 0.002). Therefore, our results suggest a specific relation of anti-CarP antibodies with the increased mortality in RA, and drive attention to their possible connection with respiratory diseases.
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Affiliation(s)
- Laura Vidal-Bralo
- Laboratorio Investigacion 10 and Rheumatology Unit, Instituto de Investigacion Sanitaria-Hospital Clinico Universitario de Santiago, Santiago de Compostela, Spain
| | - Eva Perez-Pampin
- Laboratorio Investigacion 10 and Rheumatology Unit, Instituto de Investigacion Sanitaria-Hospital Clinico Universitario de Santiago, Santiago de Compostela, Spain
| | - Cristina Regueiro
- Laboratorio Investigacion 10 and Rheumatology Unit, Instituto de Investigacion Sanitaria-Hospital Clinico Universitario de Santiago, Santiago de Compostela, Spain
| | - Ariana Montes
- Laboratorio Investigacion 10 and Rheumatology Unit, Instituto de Investigacion Sanitaria-Hospital Clinico Universitario de Santiago, Santiago de Compostela, Spain
| | - Rosana Varela
- Laboratorio Investigacion 10 and Rheumatology Unit, Instituto de Investigacion Sanitaria-Hospital Clinico Universitario de Santiago, Santiago de Compostela, Spain
| | - Maria Dolores Boveda
- Unit of Diagnosis and Treatment of Congenital Metabolic Diseases, Department of Pediatrics, Instituto de Investigacion Sanitaria-Hospital Clinico Universitario de Santiago, Santiago de Compostela, Spain
| | - Juan J. Gomez-Reino
- Laboratorio Investigacion 10 and Rheumatology Unit, Instituto de Investigacion Sanitaria-Hospital Clinico Universitario de Santiago, Santiago de Compostela, Spain
- Department of Medicine, University of Santiago de Compostela, Santiago de Compostela, Spain
| | - Antonio Gonzalez
- Laboratorio Investigacion 10 and Rheumatology Unit, Instituto de Investigacion Sanitaria-Hospital Clinico Universitario de Santiago, Santiago de Compostela, Spain
- * E-mail:
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Berendsen ML, van Maaren MC, Arts EE, den Broeder AA, Popa CD, Fransen J. Anticyclic Citrullinated Peptide Antibodies and Rheumatoid Factor as Risk Factors for 10-year Cardiovascular Morbidity in Patients with Rheumatoid Arthritis: A Large Inception Cohort Study. J Rheumatol 2017; 44:1325-1330. [DOI: 10.3899/jrheum.160670] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/26/2017] [Indexed: 01/04/2023]
Abstract
Objective.To determine whether anticyclic citrullinated peptide antibodies (anti-CCP) and rheumatoid factor (RF) are risk factors for 10-year cardiovascular disease (CVD) in patients with rheumatoid arthritis (RA).Methods.Analyses were performed using data from the Nijmegen early RA inception cohort, in which patients with newly diagnosed RA, consecutively included since 1985, were regularly followed up. Anti-CCP and RF were determined at baseline (diagnosis). Outcome was the first cardiovascular disease (CVD) event [ischemic heart disease, nonhemorrhagic cerebrovascular accident (CVA), or peripheral artery disease (PAD)] after baseline as retrieved from physician diagnosis. Fatality was checked against death certificates. Cox regression including correction for baseline confounders was performed to estimate the effect of anti-CCP, RF, and their interaction on 10-year CVD-free survival.Results.Of 929 patients included, 628 were anti-CCP–positive and 697 were RF-positive. During followup, with a median of 7.5 years, 162 CV events were observed (101 ischemic heart disease, 45 CVA, and 16 PAD), of which 15 were fatal. The HRadjusted for anti-CCP was 1.17 (95% CI 0.82–1.67) and the HRadjusted for RF was 1.52 (95% CI 1.00–2.30). The association of RF positivity with CVD was even stronger in the anti-CCP–negative patients: HRadjusted 2.09 (95% CI 1.18–3.71). There was no significant interaction (p = 0.098) between anti-CCP and RF.Conclusion.Rather than anti-CCP, presence of RF was associated with CVD in this cohort of patients with RA.
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Nossent J, Raymond W, Divitini M, Knuiman M. Rheumatoid factors do not predict cardiovascular disease and mortality in the general population in the Busselton Health Survey. BMC Musculoskelet Disord 2017; 18:221. [PMID: 28549428 PMCID: PMC5446675 DOI: 10.1186/s12891-017-1598-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/09/2016] [Accepted: 05/22/2017] [Indexed: 11/25/2022] Open
Abstract
Background Rheumatoid Factors (RF) are antibodies directed against the Fc portion of IgG and are involved in clearance of immune complexes. While RF can develop in a wide range of conditions, higher RF levels indicate a greater risk for a severe disease course in Rheumatoid Arthritis (RA) patients including cardiovascular complications and premature death. We investigated whether RF also constitute a risk factor for these outcomes in the general population. Methods We included 2,323 participants (46% male, mean age 50 years) free of CVD at baseline in 1972. RF positivity was defined as a score of ≥2 by latex agglutination (scale 0–5). All outcomes during 42-year follow-up were obtained from state-wide registries. The predictive value of RF for coronary heart disease, all cardiovascular disease and all-cause mortality was estimated by adjusted hazard ratios (HR) from Cox regression models. Results After adjustment for standard risk factors, RF positivity was not predictive of future CHD (HR 1.05, p = 0.61), CVD (HR 1,04, p = 0.63) or mortality (HR 1.03, p = 0.70) in the full CVD-free cohort. In an interaction model, RF in 41 out of 355 participants with an RA history was not predictive of CHD (HR 0.92, p = 0.77) or CVD events (HR 1.15, p = 0.51), but there was a borderline significant association with overall mortality (HR 1.41, CI 0.97–2.04, p = 0.07). Conclusions RF detected by Latex agglutination do not independently predict future CHD, CVD or death in the general population. However, the presence of RF in the context of a history of RA is associated with a moderate, borderline significant increase in the long term adjusted risk for all-cause mortality. Electronic supplementary material The online version of this article (doi:10.1186/s12891-017-1598-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Johannes Nossent
- School of Medicine & Pharmacology, The University of Western Australia, 35 Stirling Hwy (M503), Crawley, WA, 6009, Australia. .,Department of Rheumatology, Sir Charles Gairdner Hospital, Perth, WA, Australia.
| | - Warren Raymond
- School of Medicine & Pharmacology, The University of Western Australia, 35 Stirling Hwy (M503), Crawley, WA, 6009, Australia
| | - Mark Divitini
- School of Population Health, The University of Western Australia, Perth, WA, Australia
| | - Matthew Knuiman
- School of Population Health, The University of Western Australia, Perth, WA, Australia.,Busselton Population Medical Research Institute, Busselton, WA, Australia
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Rheumatoid factor positivity increases all-cause and cancer mortality: a cohort study. Rheumatol Int 2017; 37:1135-1143. [DOI: 10.1007/s00296-017-3738-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2016] [Accepted: 05/10/2017] [Indexed: 12/17/2022]
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Antiochos P, Marques-Vidal P, Virzi J, Pagano S, Satta N, Hartley O, Montecucco F, Mach F, Kutalik Z, Waeber G, Vollenweider P, Vuilleumier N. Anti-Apolipoprotein A-1 IgG Predict All-Cause Mortality and Are Associated with Fc Receptor-Like 3 Polymorphisms. Front Immunol 2017; 8:437. [PMID: 28458671 PMCID: PMC5394854 DOI: 10.3389/fimmu.2017.00437] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2017] [Accepted: 03/28/2017] [Indexed: 01/18/2023] Open
Abstract
Background Autoantibodies against apolipoprotein A-1 (anti-apoA-1 IgG) have emerged as an independent biomarker for cardiovascular disease and mortality. However, their association with all-cause mortality in the community, as well as their genetic determinants, have not been studied. Objective To determine whether anti-apoA-1 IgG: (a) predict all-cause mortality in the general population and (b) are associated with single-nucleotide polymorphisms (SNPs) in a genome-wide association study (GWAS). Methods Clinical, biological, and genetic data were obtained from the population-based, prospective CoLaus study, including 5,220 participants (mean age 52.6 years, 47.3% men) followed over a median duration of 5.6 years. The primary study outcome was all-cause mortality. Results After multivariate adjustment, anti-apoA-1 IgG positivity independently predicted all-cause mortality: hazard ratio (HR) = 1.54, 95% confidence interval (95% CI): 1.11–2.13, P = 0.01. A dose–effect relationship was also observed, each SD of logarithmically transformed anti-apoA-1 IgG being associated with a 15% increase in mortality risk: HR = 1.15, 95% CI: 1.02–1.28, P = 0.028. The GWAS yielded nine SNPs belonging to the Fc receptor-like 3 (FCRL3) gene, which were significantly associated with anti-apoA-1 IgG levels, with the lead SNP (rs6427397, P = 1.54 × 10−9) explaining 0.67% of anti-apoA-1 IgG level variation. Conclusion Anti-apoA-1 IgG levels (a) independently predict all-cause mortality in the general population and (b) are linked to FCRL3, a susceptibility gene for numerous autoimmune diseases. Our findings indicate that preclinical autoimmunity to anti-apoA-1 IgG may represent a novel mortality risk factor.
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Affiliation(s)
- Panagiotis Antiochos
- Department of Internal Medicine, Lausanne University Hospital, Lausanne, Switzerland
| | - Pedro Marques-Vidal
- Department of Internal Medicine, Lausanne University Hospital, Lausanne, Switzerland
| | - Julien Virzi
- Division of Laboratory Medicine, Department of Genetics and Laboratory Medicine, Geneva University Hospitals, Geneva, Switzerland.,Faculty of Medicine, Department of Human Protein Sciences, University of Geneva, Geneva, Switzerland
| | - Sabrina Pagano
- Division of Laboratory Medicine, Department of Genetics and Laboratory Medicine, Geneva University Hospitals, Geneva, Switzerland.,Faculty of Medicine, Department of Human Protein Sciences, University of Geneva, Geneva, Switzerland
| | - Nathalie Satta
- Division of Laboratory Medicine, Department of Genetics and Laboratory Medicine, Geneva University Hospitals, Geneva, Switzerland.,Faculty of Medicine, Department of Human Protein Sciences, University of Geneva, Geneva, Switzerland
| | - Oliver Hartley
- Faculty of Medicine, Department of Pathology and Immunology, University of Geneva, Geneva, Switzerland
| | - Fabrizio Montecucco
- Division of Laboratory Medicine, Department of Genetics and Laboratory Medicine, Geneva University Hospitals, Geneva, Switzerland.,Division of Cardiology, Foundation for Medical Researches, Department of Medical Specialties, University of Geneva, Geneva, Switzerland.,First Clinic of Internal Medicine, Department of Internal Medicine, University of Genoa, Genoa, Italy
| | - François Mach
- Division of Cardiology, Foundation for Medical Researches, Department of Medical Specialties, University of Geneva, Geneva, Switzerland
| | - Zoltán Kutalik
- Institute of Social and Preventive Medicine, University Hospital of Lausanne, Lausanne, Switzerland.,Swiss Institute of Bioinformatics, Lausanne, Switzerland
| | - Gerard Waeber
- Department of Internal Medicine, Lausanne University Hospital, Lausanne, Switzerland
| | - Peter Vollenweider
- Department of Internal Medicine, Lausanne University Hospital, Lausanne, Switzerland
| | - Nicolas Vuilleumier
- Division of Laboratory Medicine, Department of Genetics and Laboratory Medicine, Geneva University Hospitals, Geneva, Switzerland.,Faculty of Medicine, Department of Human Protein Sciences, University of Geneva, Geneva, Switzerland
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Beyond citrullination: other post-translational protein modifications in rheumatoid arthritis. Nat Rev Rheumatol 2017; 13:331-339. [PMID: 28275265 DOI: 10.1038/nrrheum.2017.15] [Citation(s) in RCA: 84] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The presence of autoantibodies is one of the hallmarks of rheumatoid arthritis (RA). In the past few decades, rheumatoid factors (autoantibodies that recognize the Fc-tail of immunoglobulins) as well as anti-citrullinated protein antibodies (ACPAs) have been studied intensively. ACPAs recognize post-translationally modified proteins in which the amino acid arginine has been converted into a citrulline. More recently, other autoantibody systems recognizing post-translationally modified proteins have also gained attention, including autoantibodies recognizing fragmented immunoglobulin (anti-hinge antibodies), autoantibodies recognizing acetylated proteins and autoantibodies recognizing proteins that are modified by adducts formed under oxidative stress. In particular, detailed insights have been obtained on the presence and properties of autoantibodies recognizing carbamylated proteins, commonly called anti-carbamylated protein (anti-CarP) antibodies. In this Review, we summarize the current knowledge relating to these emerging autoantibodies that recognize post-translationally modified proteins identified in RA, with an emphasis on anti-CarP antibodies.
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Løgstrup BB, Masic D, Laurbjerg TB, Blegvad J, Herly M, Kristensen LD, Urbonaviciene G, Hedemann-Nielsen A, Ellingsen T. Left ventricular function at two-year follow-up in treatment-naive rheumatoid arthritis patients is associated with anti-cyclic citrullinated peptide antibody status: a cohort study. Scand J Rheumatol 2017; 46:432-440. [PMID: 28121216 DOI: 10.1080/03009742.2016.1249941] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
OBJECTIVES In rheumatoid arthritis (RA), the role of autoimmunity, especially anti-cyclic citrullinated peptide antibody (anti-CCP) level, and the time-course of left ventricular (LV) function is unknown. The objective was to assess LV function and the amount of coronary calcium in relation to anti-CCP levels in a cohort of treatment-naive RA patients, and to assess changes in these parameters during a 2 year follow-up period. METHOD Sixty-six steroid- and disease-modifying anti-rheumatic drug-naive RA patients were treated with methotrexate according to the Danish national guidelines. We assessed LV function by conventional echocardiography and speckle-tracking echocardiography. We estimated the amount and progression of coronary calcium by coronary computed tomography. Patients were examined at the time of diagnosis and after 2 years. RESULTS Patients with elevated anti-CCP at baseline and after 2 years, compared to those with non-persistently elevated anti-CCP, had significantly less improvement in S´ (1 ± 1.4 cm/s vs 0.2 ± 0.9 cm/s; p = 0.04) and a worsening in global longitudinal systolic strain (GLS) (0.6 ± 1.8% vs -1 ± 2.8%; p = 0.04). There was a significant correlation between ΔGLS over 2 years and anti-CCP at 2 year follow-up (r = 0.36; p = 0.006). We observed a small progression of coronary calcium score during the 2 year follow-up period. No differences in progression were found between patients with high anti-CCP titres at baseline and 2 year follow-up (n = 12) and patients with normal/low anti-CCP titres (n = 32) (23.8 ± 40.3 vs 22.6 ± 68.9; p = 0.96). CONCLUSIONS Deformation analysis by speckle-tracking echocardiography is a valuable tool to detect early development of myocardial dysfunction despite normal ejection fraction in RA.
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Affiliation(s)
- B B Løgstrup
- a Department of Cardiology , Aarhus University Hospital Skejby , Aarhus , Denmark.,b Diagnostic Centre , Silkeborg Regional Hospital , Silkeborg , Denmark
| | - D Masic
- b Diagnostic Centre , Silkeborg Regional Hospital , Silkeborg , Denmark
| | - T B Laurbjerg
- b Diagnostic Centre , Silkeborg Regional Hospital , Silkeborg , Denmark
| | - J Blegvad
- b Diagnostic Centre , Silkeborg Regional Hospital , Silkeborg , Denmark
| | - M Herly
- b Diagnostic Centre , Silkeborg Regional Hospital , Silkeborg , Denmark
| | - L D Kristensen
- b Diagnostic Centre , Silkeborg Regional Hospital , Silkeborg , Denmark
| | - G Urbonaviciene
- b Diagnostic Centre , Silkeborg Regional Hospital , Silkeborg , Denmark
| | | | - T Ellingsen
- c The Danish National Registry DANBIO , Rigshospitalet Glostrup , Glostrup , Denmark.,d Department of Rheumatology , Odense University Hospital , Odense , Denmark
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Autoimmune atherosclerosis in 3D: How it develops, how to diagnose and what to do. Autoimmun Rev 2016; 15:756-69. [DOI: 10.1016/j.autrev.2016.03.014] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2016] [Accepted: 03/07/2016] [Indexed: 12/11/2022]
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Lazúrová I, Tomáš Ľ. Cardiac Impairment in Rheumatoid Arthritis and Influence of Anti-TNFα Treatment. Clin Rev Allergy Immunol 2016; 52:323-332. [DOI: 10.1007/s12016-016-8566-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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Papiris SA, Manali ED, Kolilekas L, Kagouridis K, Maniati M, Filippatos G, Bouros D. Acute Respiratory Events in Connective Tissue Disorders. Respiration 2016; 91:181-201. [PMID: 26938462 DOI: 10.1159/000444535] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Subacute-acute, hyperacute, or even catastrophic and fulminant respiratory events occur in almost all classic connective tissue disorders (CTDs); they may share systemic life-threatening manifestations, may precipitously lead to respiratory failure requiring ventilatory support as well as a combination of specific therapeutic measures, and in most affected patients constitute the devastating end-of-life event. In CTDs, acute respiratory events may be related to any respiratory compartment including the airways, lung parenchyma, alveolar capillaries, lung vessels, pleura, and ventilatory muscles. Acute respiratory events may also precipitate disease-specific extrapulmonary organ involvement such as aspiration pneumonia and lead to digestive tract involvement and heart-related respiratory events. Finally, antirheumatic drug-related acute respiratory toxicity as well as lung infections related to the rheumatic disease and/or to immunosuppression complete the spectrum of acute respiratory events. Overall, in CTDs the lungs significantly contribute to morbidity and mortality, since they constitute a common site of disease involvement; a major site of infections related to the 'mater' disease; a major site of drug-related toxicity, and a common site of treatment-related infectious complications. The extreme spectrum of the abovementioned events, as well as the 'vicious' coexistence of most of the aforementioned manifestations, requires skills, specific diagnostic and therapeutic means, and most of all a multidisciplinary approach of adequately prepared and expert scientists. Avoiding lung disease might represent a major concern for future advancements in the treatment of autoimmune disorders.
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Affiliation(s)
- Spyros A Papiris
- 2nd Department of Pneumonology, x2018;Attikon' University Hospital, Athens Medical School, National and Kapodistrian University of Athens, Athens, Greece
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