1
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Dima A, Vonk MC, Garaiman A, Kersten BE, Becvar R, Tomcik M, Hoffmann-Vold AM, Castellvi I, Jaime JT, Brzosko M, Milchert M, Krasowska D, Michalska-Jakubus M, Airo P, Matucci-Cerinic M, Bruni C, Iudici M, Distler J, Gheorghiu AM, Poormoghim H, Motta F, De Santis M, Parvu M, Distler O, Mihai C. Clinical significance of the anti-Nucleolar Organizer Region 90 antibodies (NOR90) in systemic sclerosis: Analysis of the European Scleroderma Trials and Research (EUSTAR) cohort and a systematic literature review. Eur J Intern Med 2024:S0953-6205(24)00143-2. [PMID: 38599922 DOI: 10.1016/j.ejim.2024.03.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/31/2023] [Revised: 03/11/2024] [Accepted: 03/29/2024] [Indexed: 04/12/2024]
Abstract
BACKGROUND The anti-Nucleolar Organizer Region 90 antibodies (NOR90) are rare antinuclear antibodies (ANA) reported in systemic sclerosis (SSc). Especially due to low prevalence, the clinical relevance of NOR90 in SSc remains uncertain. OBJECTIVES To analyze the clinical associations of NOR90 in patients with SSc in a multicentric cohort. METHODS Post-hoc, cross-sectional study of prospectively collected data from the European Scleroderma Trials and Research (EUSTAR) database, with additional information on NOR90. Further, we performed a systematic literature search, using the terms "systemic sclerosis" and "NOR90" across three databases: Medline via PubMed, Scopus, and Thomson Reuters' Web of Science Core Collection, from inception to November 1st, 2023. RESULTS Overall, 1318 patients with SSc were included (mean age 58.3 ± 13.7 years, 81.3 % female), of whom 44 (3.3 %) were positive for NOR90. Of these, 32 were also positive for one of the SSc-criteria antibodies: 9/44 (20.5 %) for anti-topoisomerase I, 18/42 (42.9 %) for anti-centromere, and 5/40 (12.5 %) for anti-RNA polymerase III. NOR90-positive patients were more frequently female, had lower modified Rodnan skin score (mRSS), and lower prevalence of upper and lower gastrointestinal (GI) symptoms compared to NOR90-negative patients. In multivariable analysis, NOR90 remained significantly associated with lower mRSS and less frequent GI symptoms. The literature search identified 17 articles, including a total number of 87 NOR90-positive out of 3357 SSc patients, corresponding to an overall prevalence of 2.6 %. CONCLUSION To our best knowledge, this is the largest SSc cohort tested for NOR90 to date, confirming the NOR90 prevalence in SSc patients is around 3 %.
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Affiliation(s)
- A Dima
- Department of Rheumatology, University Hospital Zurich, University of Zurich, Rämistrasse 100, CH-8091 Zürich, Switzerland; Department of Rheumatology, Colentina Clinical Hospital, 19-21 Stefan cel Mare, 020125 Bucharest, Romania.
| | - M C Vonk
- Department of the Rheumatology, Radboud University Nijmegen Medical Centre Huispost 667, 6500HB Nijmegen, the Netherlands
| | - A Garaiman
- Department of Rheumatology, University Hospital Zurich, University of Zurich, Rämistrasse 100, CH-8091 Zürich, Switzerland
| | - B E Kersten
- Department of the Rheumatology, Radboud University Nijmegen Medical Centre Huispost 667, 6500HB Nijmegen, the Netherlands
| | - R Becvar
- Institute of Rheumatology, Department of Rheumatology, 1st Faculty of Medicine, Charles University - Na Slupi 4, 12800 Praha 2, Czechia
| | - M Tomcik
- Institute of Rheumatology, Department of Rheumatology, 1st Faculty of Medicine, Charles University - Na Slupi 4, 12800 Praha 2, Czechia
| | - A-M Hoffmann-Vold
- Department of Rheumatology, University Hospital Zurich, University of Zurich, Rämistrasse 100, CH-8091 Zürich, Switzerland; Department of Rheumatology, Rikshospitalet University Hospital - Sognsvannveien 20, 0027 Oslo, Norway
| | - I Castellvi
- Department of Rheumatology, Hospital Universitari de la Santa Creu i Sant Pau, Sant Antoni Maria Claret 167 Barcelona, Spain
| | - Jl Tandaipan Jaime
- Department of Rheumatology, Hospital Universitari de la Santa Creu i Sant Pau, Sant Antoni Maria Claret 167 Barcelona, Spain
| | - M Brzosko
- Department of Internal Medicine Rheumatology Diabetology Geriatrics and Clinical Immunology, Pomeranian Medical University in Szczecin, Ul. Unii Lubelskiej 1, 71-252 Szczecin, Poland
| | - M Milchert
- Department of Internal Medicine Rheumatology Diabetology Geriatrics and Clinical Immunology, Pomeranian Medical University in Szczecin, Ul. Unii Lubelskiej 1, 71-252 Szczecin, Poland
| | - D Krasowska
- Department of Dermatology, Venereology and Pediatric Dermatology, Medical University of Lublin, Staszica 11L, 20-081 Lublin, Poland
| | - M Michalska-Jakubus
- Department of Dermatology, Venereology and Pediatric Dermatology, Medical University of Lublin, Staszica 11L, 20-081 Lublin, Poland
| | - P Airo
- 9 Spedali Civili di Brescia, Scleroderma UNIT, UOC Reumatologia ed Immunologia Clinica, Piazzale Spedali Civili 1, 25123 Brescia, Italy
| | - M Matucci-Cerinic
- Department of Experimental and Clinical Medicine, University of Florence & Division of Rheumatology AOUC, Florence, Italy; Unit of Immunology, Rheumatology, Allergy and Rare Diseases (UnIRAR), IRCCS San Raffaele Scientific Institute, Vita-Salute San Raffaele University, Milan, Italy
| | - C Bruni
- Department of Rheumatology, University Hospital Zurich, University of Zurich, Rämistrasse 100, CH-8091 Zürich, Switzerland; Department of Experimental and Clinical Medicine, University of Florence & Division of Rheumatology AOUC, Florence, Italy
| | - M Iudici
- Rheumatology Unit, Geneva University Hospitals, 1211 Geneva 14, Switzerland
| | - Jhw Distler
- Department of Rheumatology, University Hospital Düsseldorf, Heinrich-Heine University, Düsseldorf, Germany
| | - A M Gheorghiu
- Department of Internal Medicine and Rheumatology Clinic, Ion Cantacuzino Hospital - Ion Movila Street 5-7, 020475 Bucharest, Romania
| | - H Poormoghim
- Department of Rheumatology, Firoozgar Hospital - Beh Afarin street, Tehran, Iran
| | - F Motta
- Department of Biomedical Sciences, Humanitas University, via R Levi Montalcini, 20090, Pieve Emanuele, Italy; Rheumatology and Clinical Immunology, IRCCS Humanitas Research Hospital, via A Manzoni 56, 20089, Rozzano, Milan, Italy
| | - M De Santis
- Department of Biomedical Sciences, Humanitas University, via R Levi Montalcini, 20090, Pieve Emanuele, Italy; Rheumatology and Clinical Immunology, IRCCS Humanitas Research Hospital, via A Manzoni 56, 20089, Rozzano, Milan, Italy
| | - M Parvu
- Department of Rheumatology, Colentina Clinical Hospital, 19-21 Stefan cel Mare, 020125 Bucharest, Romania
| | - O Distler
- Department of Rheumatology, University Hospital Zurich, University of Zurich, Rämistrasse 100, CH-8091 Zürich, Switzerland
| | - C Mihai
- Department of Rheumatology, University Hospital Zurich, University of Zurich, Rämistrasse 100, CH-8091 Zürich, Switzerland
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2
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Autoantibodies and Clinical Correlations in Polish Systemic Sclerosis Patients: A Cross-Sectional Study. J Clin Med 2023; 12:jcm12020657. [PMID: 36675584 PMCID: PMC9863773 DOI: 10.3390/jcm12020657] [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: 12/23/2022] [Revised: 01/05/2023] [Accepted: 01/09/2023] [Indexed: 01/18/2023] Open
Abstract
We evaluated the prevalence of systemic sclerosis (SSc)-related autoantibodies and their clinical significance and compared the sensitivity of two line immunoblot assays on a prospective study group of 96 Polish SSc patients (ACR-EULAR 2013 criteria) whose sera were assessed by indirect immunofluorescence (HEp-2 and monkey liver) and line immunoblot assays: ANA Profile 3 and Systemic Sclerosis Profile by EUROIMMUN (Lübeck, Germany). Organ involvement was evaluated according to the EUSTAR Minimal Essential Data Set. The following autoantibodies’ prevalence was found: Scl-70 (36%), Ro-52 (28%), CENP-B (22%), CENP-A (20%), PM-Scl-75 (20%), PM-Scl-100 (14%), fibrillarin (7%), Th/To (7%), RNA polymerase III 11 kDa (5%), RNA polymerase III 155 kDa (3%), PDGFR (3%), NOR-90 (2%), and Ku (1%). Significant associations between the autoantibodies’ presence and organ involvement were found: ATA (dcSSc > lcSSc, less prevalent muscle weakness), Ro-52 (gangrene, DLCO < 60), CENP-B and A (lcSSc > dcSSc, normal CK), CENP-B (rarer digital ulcers and joint contractures), PM-Scl-100 and 75 (PM/SSc overlap, CK increase, muscle weakness, muscle atrophy), PM-Scl-100 (dcSSc unlikely), PM-Scl-75 (lung fibrosis), fibrillarin (muscle atrophy, proteinuria, conduction blocks, palpitations), Th/To (proteinuria, arthritis, muscle weakness, and rarer esophageal symptoms), RNA Polymerase III 11 kDa (arterial hypertension, renal crisis), RNA polymerase III 155 kDa (renal crisis), and PDGFR (dcSSc, tendon friction rubs). Additionally, the Systemic Sclerosis Profile was significantly more sensitive in detecting SSc-related autoantibodies than ANA Profile 3 (p = 0.002). In conclusion, individual autoantibodies associated with specific characteristics of SSc.
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3
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Ramos-Martinez E, Vega-Sánchez AE, Pérez-Rubio G, Mejia M, Buendía-Roldán I, González-Pérez MI, Mateos-Toledo HN, Andrade WA, Falfán-Valencia R, Rojas-Serrano J. Enhanced Activity of NLRP3 Inflammasome in the Lung of Patients with Anti-Synthetase Syndrome. Cells 2022; 12:cells12010060. [PMID: 36611853 PMCID: PMC9818379 DOI: 10.3390/cells12010060] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 12/17/2022] [Accepted: 12/18/2022] [Indexed: 12/25/2022] Open
Abstract
Anti-synthetase syndrome (ASSD) is an autoimmune disorder characterized by inflammatory interstitial lung disease (ILD). The main objective of this work was to quantify the concentrations of cytokines and molecules associated with inflammasome activation in bronchoalveolar lavage (BAL) of patients with ASSD and a comparison group of systemic sclerosis (SSc) patients. Cytokines and lactate dehydrogenase (LDH) were determined using the concentrated BAL protein. The activity of caspase-1 and concentration of NLRP3 with the protein purified from the cell pellet in each group of patients. We found higher caspase-1 levels in ASSD vs. SSc, 1.25 RFU vs. 0.75 RFU p = 0.003, and LDH levels at 0.15 OD vs. 0.09 OD p < 0.001. A significant difference was observed in molecules associated with inflammasome activation, IL-18: 1.42 pg/mL vs. 0.87 pg/mL p = 0.02 and IFN-γ: 0.9 pg/mL vs. 0.86 pg/mL, p = 0.01. A positive correlation was found between caspase-1 and LDH in the patients with ASSD Rho 0.58 (p = 0.008) but not in the SSc group. In patients with ASSD, greater caspase-1 and higher LDH activity were observed in BAL, suggesting cell death due to pyroptosis and activation of the inflammasome pathway.
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Affiliation(s)
- Espiridión Ramos-Martinez
- Experimental Medicine Research Unit, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City 06720, Mexico
| | - Angel E. Vega-Sánchez
- Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Mexico City 14080, Mexico
| | - Gloria Pérez-Rubio
- HLA Laboratory, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Mexico City 14080, Mexico
| | - Mayra Mejia
- Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Mexico City 14080, Mexico
| | - Ivette Buendía-Roldán
- Translational Research Laboratory on Aging and Pulmonary Fibrosis, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Mexico City 14080, Mexico
| | - Montserrat I. González-Pérez
- Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Mexico City 14080, Mexico
| | - Heidegger N. Mateos-Toledo
- Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Mexico City 14080, Mexico
| | - Warrison A. Andrade
- Departamento de Biologia Celular e Molecular e Bioagentes Patogênicos, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, São Paulo 14049-900, Brazil
| | - Ramcés Falfán-Valencia
- HLA Laboratory, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Mexico City 14080, Mexico
- Correspondence: (R.F.-V.); (J.R.-S.)
| | - Jorge Rojas-Serrano
- Interstitial Lung Disease and Rheumatology Unit, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Mexico City 14080, Mexico
- Correspondence: (R.F.-V.); (J.R.-S.)
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4
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Koulouri V, Bakasis AD, Marketos N, Tavernaraki K, Giannelou M, Moutsopoulos HM, Mavragani CP. Scleroderma specific autoantibodies in rheumatoid arthritis and Sjögren's syndrome patients with interstitial lung disease: Prevalence and associations. J Transl Autoimmun 2022; 6:100183. [PMID: 36619654 PMCID: PMC9816776 DOI: 10.1016/j.jtauto.2022.100183] [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: 12/13/2022] [Accepted: 12/20/2022] [Indexed: 12/24/2022] Open
Abstract
Systemic sclerosis (SSc) has been classically linked to interstitial lung disease (ILD) development, often in association with specific SSc autoantibodies. In the present report, we aimed to estimate the prevalence of SSc autoantibodies in 60 seropositive RA and 41 primary SS patients complicated or not by ILD. SSc autoantibodies were determined in patients' sera by a commercial immunoblot assay. RA ILD patients displayed higher frequency of SSc-specific antibodies at strong titers compared to RA-with no lung involvement (25% vs 3.1%, p = 0.01)[OR 95% CI:10.9 (1.2-94.5)], with no differences detected between primary SS groups. These data indicate that many seropositive RA ILD patients probably represent an overlap RA/SSc entity, requiring tailored diagnostic and therapeutic approach.
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Affiliation(s)
- Vasiliki Koulouri
- Department of Physiology, School of Medicine, National and Kapodistrian University of Athens, Greece,Department of Pathophysiology, School of Medicine, National and Kapodistrian University of Athens, Greece
| | | | - Nikolaos Marketos
- Department of Physiology, School of Medicine, National and Kapodistrian University of Athens, Greece
| | - Kyriaki Tavernaraki
- Imaging and Interventional Radiology, Sotiria General and Chest Diseases Hospital, Athens, Greece
| | - Mayra Giannelou
- Department of Rheumatology, General Hospital of Athens “G. Gennimatas”, Greece
| | | | - Clio P. Mavragani
- Department of Physiology, School of Medicine, National and Kapodistrian University of Athens, Greece,Joint Academic Rheumatology Program, National and Kapodistrian University of Athens, Athens, Greece,Corresponding author. Department of Physiology, School of Medicine, National and Kapodistrian University of Athens, M.Asias 75, 11527, Athens, Greece
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5
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Satoh M, Ceribelli A, Hasegawa T, Tanaka S. Clinical Significance of Antinucleolar Antibodies: Biomarkers for Autoimmune Diseases, Malignancies, and others. Clin Rev Allergy Immunol 2022; 63:210-239. [PMID: 35258843 DOI: 10.1007/s12016-022-08931-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/19/2022] [Indexed: 01/13/2023]
Abstract
Nucleolar staining is one of the standard patterns in immunofluorescence antinuclear antibodies (ANA), seen in 5-9% of ANA in various conditions. Antinucleolar antibodies (ANoA) are classified into 3 patterns in the International Consensus on ANA Patterns (ICAP) classification; AC-8 homogeneous pattern, AC-9 clumpy pattern, and AC-10 punctate pattern. Specificities known to show AC-8 include anti-Th/To, -PM-Scl, -nucleophosmin/B23, -nucleolin/C23, -No55, and others. AC-9 is seen by anti-fibrillarin/U3RNP and AC-10 by anti-RNA polymerase I and hUBF/NOR-90. ANoA has been classically known to be associated with scleroderma (SSc) and the characterization of nucleolar antigens identified several autoantigens recognized by SSc autoantibodies. The clinical association of anti-Th/To, PM-Scl, fibrillarin/U3RNP, and RNA polymerase I with SSc or SSc-overlap syndrome is well established, and commercial assays are developed. Anti-hUBF/NOR90, nucleophosmin/B23, and nucleolin/C23 are known for decades and reported in systemic autoimmune rheumatic diseases (SARDs), malignancies, graft versus host disease (GVHD), and others; however, their clinical significance remains to be established.
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Affiliation(s)
- Minoru Satoh
- Department of Clinical Nursing, School of Health Sciences, University of Occupational and Environmental Health, 1-1 Isei-gaoka, Yahata-nishi-ku, Kitakyushu, Fukuoka, 807-8555, Japan.
| | - Angela Ceribelli
- Division of Rheumatology and Clinical Immunology, IRCCS Humanitas Research Hospital, Rozzano (Milan), 20089, Italy
- Department of Biomedical Sciences, Humanitas University, Via A. Manzoni 56, Pieve Emnuele (Milan), 20089, Italy
| | - Tomoko Hasegawa
- Department of Clinical Nursing, School of Health Sciences, University of Occupational and Environmental Health, 1-1 Isei-gaoka, Yahata-nishi-ku, Kitakyushu, Fukuoka, 807-8555, Japan
| | - Shin Tanaka
- Department of Human, Information and Sciences, School of Health Sciences, University of Occupational and Environmental Health, 1-1 Isei-gaoka, Yahata-nishi-ku, Kitakyushu, Fukuoka, 807-8555, Japan
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6
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Machhua S, Sharma SK, Kumar Y, Anand S, Handa S, Minz RW. Antinuclear antibody pattern and autoantibody profiling of systemic sclerosis patients in a tertiary referral center in North India. Pathol Int 2022; 72:283-292. [PMID: 35319814 DOI: 10.1111/pin.13221] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Accepted: 02/21/2022] [Indexed: 11/28/2022]
Abstract
Antinuclear antibody (ANA) pattern and autoantibody (autoAb) profiling of 150 adult systemic sclerosis (SSc) patients concerning their clinical association and diagnostic significance were analyzed by indirect immunofluorescence (IIF), immunoblot, and fluorescence enzyme immunoassay. One hundred and forty-three (95.3%) patients had positive ANA: DNA topoisomerase I (topo I)-like pattern-84(56%); speckled pattern-44(29.3%);centromere pattern-7(4.6%); and nucleolar pattern-4(2.6%). Three distinct topo I-like immunofluorescence patterns were detected at 1:40 dilution. Topo I-like pattern (32/75-limited cutaneous systemic sclerosis (lcSSc) vs. 52/75-diffuse cutaneous systemic sclerosis (dcSSc); p < 0.001) was found to be associated with dcSSc subset and speckled pattern (lcSSc 28/75 vs. dcSSc 16/75; p < 0.03) with lcSSc subset. One hundred and thirty-eight (92%) patients were positive for SSc-associated autoAbs. The frequency distribution of autoAbs to topo I, centromere A (CENP A) and centromereB (CENP B), RNA polymerase III (RP11, RP155), fibrillarin (U3RNP), nucleolus organizer region (NOR)-90, Th/To, PM-Scl75, PM-Scl100, Ku, platelet-derived growth factor receptor (PDGFR) and Ro-52, were 87(58%), 9(6%), 8(5.3%), 6(4%), 9(6%), 0, 6(4%), 6(4%), 8(5.3%), 5(3.3%), 11(7.3%),0 and 46(30.6%), respectively. Topo I autoAb was strongly associated with dcSSc (35/75 lcSSc vs. 52/75 dcSSc; p < 0.004), Raynaud's (p < 0.003), interstitial lung disease (ILD) (p < 0.001) and pulmonary arterial hypertension (PAH) (p < 0.04). This study helps in defining SSc clinical subset, prognostic markers of disease severity, characterization of the topo I-like ANA pattern, and provides a definite association between the ANA patterns and corresponding autoAb.
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Affiliation(s)
- Sanghamitra Machhua
- Department of Immunopathology, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
| | - Shefali K Sharma
- Department of Internal Medicine, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
| | - Yashwant Kumar
- Department of Immunopathology, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
| | - Shashi Anand
- Department of Immunopathology, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
| | - Sanjeev Handa
- Department of Dermatology Venereology Leprology, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
| | - Ranjana W Minz
- Department of Immunopathology, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
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7
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Mahler M, Kim G, Roup F, Bentow C, Fabien N, Goncalves D, Palterer B, Fritzler MJ, Villalta D. Evaluation of a novel particle-based multi-analyte technology for the detection of anti-fibrillarin antibodies. Immunol Res 2021; 69:239-248. [PMID: 33913080 PMCID: PMC8266783 DOI: 10.1007/s12026-021-09197-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/22/2021] [Indexed: 12/03/2022]
Abstract
Systemic sclerosis (SSc) is a heterogeneous autoimmune disease associated with several anti-nuclear antibodies (ANA), including those in the classification criteria (anti-centromere, anti-topoisomerase I (Scl-70), anti-RNA Pol III). However, the presence of less common antibodies such as anti-fibrillarin (U3-RNP) that generate a clumpy nucleolar pattern by HEp-2 indirect immunofluorescence assay (IFA, ICAP AC-9) are considered disease specific and are with clinical subsets of SSc, therefore playing a role in diagnosis and prognosis. A specific and sensitive anti-fibrillarin assay would be an important addition to serological diagnosis and evaluation of SSc. The goal of this study was to evaluate a new particle-based multi-analyte technology (PMAT) for the measurement of anti-fibrillarin antibodies. A total of 149 patient samples were collected including 47 samples from France (Lyon and Paris, n = 32) and Italy (Careggi Hospital, Florence, n = 15) selected based on AC-9 HEp-2 IFA staining (> 1:640, clumpy nucleolar pattern) and 102 non-SSc controls (inflammatory bowel disease (IBD) n = 20, Sjögren's syndrome (SjS) n = 20, infectious disease (ID) n = 7, systemic lupus erythematosus (SLE) n = 17, rheumatoid arthritis (RA) n = 17, and healthy individuals (HI) n = 21). All samples were tested on the anti-fibrillarin PMAT assay (research use only, Inova Diagnostics, USA). Additionally, the 47 anti-fibrillarin positive samples were also tested on PMAT assays for detecting other autoantibodies in ANA-associated rheumatic diseases (AARD). Anti-fibrillarin antibody data performed by fluorescence enzyme immunoassay (FEIA, Thermo Fisher, Germany) was available for 34 samples. The anti-fibrillarin PMAT assay was positive in 31/32 (96.9%, France) and 12/15 (80.0%, Italy) of samples preselected based on the AC-9 IIF pattern (difference p = 0.09). Collectively, the PMAT assay showed 91.5% (95% confidence interval (CI): 80.1-96.6%) sensitivity with 100.0% (95% CI: 96.4-100.0%) specificity in non-SSc controls. Strong agreement was found between PMAT and FEIA with 100.0% positive qualitative agreement (34/34) and quantitative agreement (Spearman's rho = 0.89, 95% CI: 0.77.9-0.95%, p < 0.0001). Although most anti-fibrillarin positive samples were mono-specific (69.8%), some expressed additional antibodies (namely Scl-70, centromere, dsDNA, Ro52, Ro60, SS-B, Ribo-P, DFS70, and EJ). In conclusion, this first study on anti-fibrillarin antibodies measured using a novel PMAT assay shows promising results where the new PMAT assay had high level of agreement to FEIA for the detection of anti-fibrillarin antibodies. The availability of novel AFA assays such as PMAT might facilitate the clinical deployment, additional studies, standardization efforts, and potentially consideration of AFA for next generations of the classification criteria.
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MESH Headings
- Adolescent
- Adult
- Aged
- Aged, 80 and over
- Antibodies, Antinuclear/blood
- Antibodies, Antinuclear/immunology
- Antibodies, Antinuclear/isolation & purification
- Case-Control Studies
- Child
- Chromosomal Proteins, Non-Histone/immunology
- Diagnosis, Differential
- Feasibility Studies
- Female
- Fluorescent Antibody Technique, Indirect/instrumentation
- Fluorescent Antibody Technique, Indirect/methods
- Healthy Volunteers
- Humans
- Male
- Middle Aged
- Prognosis
- Reagent Kits, Diagnostic
- Scleroderma, Systemic/blood
- Scleroderma, Systemic/diagnosis
- Scleroderma, Systemic/immunology
- Young Adult
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Affiliation(s)
- Michael Mahler
- Research and Development, Inova Diagnostics, San Diego, CA, 92131, USA
| | - Grace Kim
- Research and Development, Inova Diagnostics, San Diego, CA, 92131, USA
| | - Fabrece Roup
- Research and Development, Inova Diagnostics, San Diego, CA, 92131, USA.
| | - Chelsea Bentow
- Research and Development, Inova Diagnostics, San Diego, CA, 92131, USA
| | - Nicole Fabien
- Immunology Department, Lyon-Sud Hospital, Hospices Civils de Lyon, Claude Bernard, Pierre-Benite, France
| | - David Goncalves
- Immunology Department, Lyon-Sud Hospital, Hospices Civils de Lyon, Claude Bernard, Pierre-Benite, France
- University Lyon I, University of Lyon, Pierre-Benite, France
| | - Boaz Palterer
- Department of Clinical and Experimental Medicine, Unit of Allergology and Clinical Immunology, University of Florence, Florence, Italy
| | - Marvin J Fritzler
- Department of Medicine, Cumming School of Medicine, University of Calgary, Calgary, AB, T2N4N1, Canada
| | - Danilo Villalta
- Immunologia E Allergologia, Ospedale S. Maria degli Angeli, Pordenone, Italy
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8
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Azarbani N, Javadzadeh A, Mohseni I, Jalali A, Andalib E, Poormoghim H. Association of Musculoskeletal and Radiological Features with Clinical and Serological Findings in Systemic Sclerosis: A Single-Centre Registry Study. Mediterr J Rheumatol 2020; 31:341-349. [PMID: 33163868 PMCID: PMC7641026 DOI: 10.31138/mjr.31.3.341] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Revised: 07/29/2020] [Accepted: 09/15/2020] [Indexed: 11/06/2022] Open
Abstract
AIM Systemic sclerosis (SSc) is a chronic connective tissue disease with the clinical hallmark of skin thickening and tethering. Correlation of musculoskeletal features with other parameters should be considered in SSc patients. METHODS We reviewed the records of all patients who had more than one visit and standard anteroposterior radiography of hand. We used univariate analysis, and factors with p<0.05 were included in logistic regression to find out dependent factors. RESULTS Overall, 180 SSc patients were enrolled in our study, 161 (89.4%) of whom were women. Median age (IQR) was 47.0 years (16), and 52% had diffuse subtype of the disease. In multivariate analysis, tendon friction rubs (TFRs) was associated with the presence of calcinosis, muscle tenderness, and flexion contracture (FC) on physical examination (p<0.05). Arthritis showed no differences in the two subtypes of the disease (p=0.98), and in multivariate analysis, there were no correlations between radiographic arthritis and serological and clinical features. The radiographic results indicated that disease duration correlated with joint erosion, acro-osteolysis, resorption of distal ulna, calcinosis and radiologic FC (p< 0.05). Acro-osteolysis was more frequent in the dcSSc subtype, TFRs, and anti-TOPO I antibody. Radiologic FC showed association with skin score, calcinosis and haematocrit <30% (p<0.05). Joint flexion on radiography was associated with disease duration, modified Rodnan skin score, calcinosis, and low haematocrit (P<0.01). CONCLUSION Disease duration was a main dependent factor for developing joint erosion, acro-osteolysis, bone resorption, calcinosis, and flexion contracture on hand radiography. Acro-osteolysis presented in the severe form of the disease. Acro-osteolysis was the only dependent variable associated with bone demineralization.
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Affiliation(s)
| | | | - Iman Mohseni
- Iran University of Medical Sciences, Tehran, Iran
| | - Arash Jalali
- Tehran University of Medical Sciences, Tehran, Iran
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Gkoutzourelas A, Liaskos C, Simopoulou T, Katsiari C, Efthymiou G, Scheper T, Meyer W, Tsirogianni A, Tsigalou C, Dardiotis E, Daoussis D, Sakkas LI, Bogdanos DP. A study of antigen-specific anti-cytomegalovirus antibody reactivity in patients with systemic sclerosis and concomitant anti-Ro52 antibodies. Rheumatol Int 2020; 40:1689-1699. [DOI: 10.1007/s00296-020-04643-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2020] [Accepted: 07/03/2020] [Indexed: 12/18/2022]
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Gkoutzourelas A, Liaskos C, Mytilinaiou MG, Simopoulou T, Katsiari C, Tsirogianni A, Daoussis D, Scheper T, Meyer W, Bogdanos DP, Sakkas LI. Anti-Ro60 Seropositivity Determines Anti-Ro52 Epitope Mapping in Patients With Systemic Sclerosis. Front Immunol 2018; 9:2835. [PMID: 30581434 PMCID: PMC6293197 DOI: 10.3389/fimmu.2018.02835] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Accepted: 11/16/2018] [Indexed: 12/14/2022] Open
Abstract
Epitope mapping of anti-Ro52 antibodies (Abs) has been extensively studied in patients with Sjögren's syndrome (SjS) and systemic lupus erythematosus (SLE). Comprehensive epitope mapping in systemic sclerosis (SSc), where anti-Ro52 antibodies are also frequently detected, has not been performed. The aim of the present study was to fully characterize Ro52 epitopes in anti-Ro52-positive SSc using Ro52 fragments spanning the full antigen. Further analysis was made according to anti-Ro60 status. Epitope mapping was performed in 43 anti-Ro52-positive SSc patients. Seventy eight anti-Ro52-positive pathological controls, including 20 patients with SjS, 28 patients with SLE, 15 patients with dermatomyositis (DM), and 15 patients with primary biliary cholangitis (PBC), and 20 anti-Ro52-negative healthy individuals as normal controls were also tested. Five recombinant Ro52 fragments [Ro52-1 (aa 1-127), Ro52-2 (aa 125-268), Ro52-3 (aa 268-475), Ro52-4 (aa 57-180), and Ro52-5 (aa 181-320) were used to test reactivity by line-immunoassay and in house ELISA. Anti-Ro60 reactivity was tested by ELISA. All anti-Ro52 positive sera reacted with Ro52-2; none recognized Ro52-3. Antibodies against Ro52-1 were less frequently found in SSc than in SjS/SLE (11.6 vs. 41.7%, p = 0.001); and antibodies against Ro52-4 were less frequently found in SSc than in SjS/SLE (27.9 vs. 50%, p = 0.03). In SSc patients, reactivity against Ro52-1 was more frequent in anti-Ro52+/anti-Ro60+ than in anti-Ro52+/anti-Ro60-patients (33.3 vs. 0%, p = 0.003). In this comprehensive analysis of Ro52 epitope mapping in SSc, the coiled coil domain remains the predominant epitope on Ro52. Contrary to SjS and SLE, patients with SSc fail to identify epitopic regions within the N-terminus of the protein, especially if they lack con-current anti-Ro60 reactivity.
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Affiliation(s)
- Athanasios Gkoutzourelas
- Department of Rheumatology and Clinical Immunology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece
| | - Christos Liaskos
- Department of Rheumatology and Clinical Immunology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece
| | - Maria G. Mytilinaiou
- Department of Rheumatology and Clinical Immunology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece
| | - Theodora Simopoulou
- Department of Rheumatology and Clinical Immunology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece
| | - Christina Katsiari
- Department of Rheumatology and Clinical Immunology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece
| | - Alexandra Tsirogianni
- Department of Immunology-Histocompatibility, Evangelismos General Hospital, Athens, Greece
| | - Dimitrios Daoussis
- Department of Rheumatology, Patras University Hospital, Faculty of Medicine, University of Patras Medical School, Patras, Greece
| | - Thomas Scheper
- Institute of Immunology Affiliated to Euroimmun AG, Lübeck, Germany
| | - Wolfgang Meyer
- Institute of Immunology Affiliated to Euroimmun AG, Lübeck, Germany
| | - Dimitrios P. Bogdanos
- Department of Rheumatology and Clinical Immunology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece
| | - Lazaros I. Sakkas
- Department of Rheumatology and Clinical Immunology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece
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Bogdanos DP. Mediterranean Journal of Rheumatology September 2018 Highlights. Mediterr J Rheumatol 2018; 29:118-119. [PMID: 32185312 PMCID: PMC7046051 DOI: 10.31138/mjr.29.3.118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
- Dimitrios P. Bogdanos
- Department of Rheumatology and Clinical Immunology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece
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