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Foeldvari I, Torok KS, Antón J, Blakley M, Constantin T, Cutolo M, Denton CP, Fligelstone K, Hinrichs B, Li SC, Maillard S, Marrani E, Moinzadeh P, Orteu CH, Pain CE, Pauling JD, Pilkington C, Rosser F, Smith V, Furst DF. Best clinical practice in the treatment of juvenile systemic sclerosis: expert panel guidance - the result of the International Hamburg Consensus Meeting December 2022. Expert Rev Clin Immunol 2024; 20:387-404. [PMID: 38149621 DOI: 10.1080/1744666x.2023.2298354] [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: 09/06/2023] [Accepted: 12/19/2023] [Indexed: 12/28/2023]
Abstract
INTRODUCTION Juvenile systemic sclerosis (jSSc) is an orphan disease with a prevalence of 3 in 1,000,000 children. Currently there is only one consensus treatment guideline concerning skin, pulmonary and vascular involvement for jSSc, the jSSc SHARE (Single Hub and Access point for pediatric Rheumatology in Europe) initiative, which was based on data procured up to 2014. Therefore, an update of these guidelines, with a more recent literature and expert experience, and extension of the guidance to more aspects of the disease is needed. AREAS COVERED Treatment options were reviewed, and opinions were provided for most facets of jSSc including general management, some of which differs from adult systemic sclerosis, such as the use of corticosteroids, and specific organ involvement, such as skin, musculoskeletal, pulmonary, and gastroenterology. EXPERT OPINION We are suggesting the treat to target strategy to treat early to prevent cumulative disease damage in jSSc. Conclusions are derived from both expert opinion and available literature, which is mostly based on adult systemic sclerosis (aSSc), given shared pathophysiology, extrapolation of results from aSSc studies was judged reasonable.
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Affiliation(s)
- Ivan Foeldvari
- Hamburg Centre for Pediatric and Adolescent Rheumatology, Schön Klinik Hamburg Eilbek, Hamburg, Germany
| | - Kathryn S Torok
- University of Pittsburgh and University of Pittsburgh Medical Center Children's Hospital of Pittsburgh, Pittsburgh, PA, USA
| | - Jordi Antón
- Department of Pediatric Rheumatology. Hospital Sant Joan de Déu and Universitat de Barcelona, Barcelona, Spain
| | - Michael Blakley
- Riley Hospital for Children at IU Health, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Tamás Constantin
- Unit of Pediatric Rheumatology, Tűzoltó Street Department, Pediatric Centre, Semmelweis University, Budapest, Hungary
| | - Maurizio Cutolo
- Laboratory of Experimental Rheumatology and Academic Division of Clinical Rheumatology-Department of Internal Medicine and Specialties, University of Genoa and IRCCS San Martino Polyclinic Hospital, Genoa, Italy
| | | | - Kim Fligelstone
- Scleroderma & Raynaud's United Kindgom (SRUK) (Research Subcommittee, Patient Research Partner), FESCA, London, UK
| | - Bernd Hinrichs
- Children's pulmonology, Asklepios Klinik Nord - Heidberg, Hamburg, Germany
| | - Suzanne C Li
- Hackensack University Medical Center, Hackensack, NJ, USA
| | | | - Edoardo Marrani
- Pediatric Rheumatology Unit, Meyer Children's Hospital IRCCS, Florence, Italy
| | - Pia Moinzadeh
- Department of Dermatology and Venereology, University Hospital Cologne, Cologne, Germany
| | - Catherine H Orteu
- UCL Institute of Immunity and Transplantation, Royal Free London NHS Foundation Trust, London, UK
| | - Clare E Pain
- Alder Hey Children's Foundation NHS Trust, Liverpool, UK
| | - John D Pauling
- Department of Internal Medicine, Ghent University, Ghent, Belgium
- Department of Rheumatology, Ghent University Hospital, Ghent, Belgium
- Unit for Molecular Immunology and Inflammation, VIB Inflammation Research Center (IRC), Ghent, Belgium and ERN ReCONNET
| | | | - Franziska Rosser
- University of Pittsburgh and University of Pittsburgh Medical Center Children's Hospital of Pittsburgh, Pittsburgh, PA, USA
| | - Vanessa Smith
- University of California, Los Angeles, CA, USA
- University of Washington, Seattle, WA, USA
- University of Florence, Florence, Italy
| | - Daniel F Furst
- Division of Rheumatology Fellow, Geffen School of Medicine at the University of California in Los Angeles, Los Angeles, CA, USA
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Tandaipan J, Guillén-Del-Castillo A, Simeón-Aznar CP, Carreira PE, De la Puente C, Narváez J, Lluch J, Rubio-Rivas M, Alegre-Sancho JJ, Bonilla G, Moriano C, Casafont-Sole I, García-Vicuña R, Ortiz-Santamaría V, Riera E, Atienza-Mateo B, Blanco R, Galisteo C, Gonzalez-Martin JJ, Pego-Reigosa JM, Pros A, Heredia S, Castellví I. Immunoglobulins in systemic sclerosis management. A large multicenter experience. Autoimmun Rev 2023; 22:103441. [PMID: 37708984 DOI: 10.1016/j.autrev.2023.103441] [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: 08/08/2023] [Accepted: 09/03/2023] [Indexed: 09/16/2023]
Abstract
OBJECTIVE To analyze the effectiveness and safety of intravenous immunoglobulin (IVIG) given in routine care to patients with systemic sclerosis (SSc). METHODS A retrospective multicenter observational study was conducted in SSc patients treated with IVIG. We collected data on epidemiological parameters and clinical outcomes. Firstly, we assessed changes in organ manifestations during IVIG treatment. Secondly, we analyzed the frequency of adverse effects. The following parameters were collected from baseline to the last follow-up: the patient's weight, modified Rodnan Skin Score (mRSS), modified manual muscle strength scale (MRC), laboratory test(creatine kinase(CK), hemoglobin and protein levels), The University of California Los Angeles Scleroderma Clinical Trials Consortium gastrointestinal tract 2.0 (UCLA GIT 2.0) questionnaire, pulmonary function tests, and echocardiography. RESULTS Data were collected on 78 patients (82% females; 59% with diffuse SSc). Inflammatory idiopathic myopathy was the most frequent concomitant overlap disease (41%). The time since Raynaud's phenomenon and SSc onset were 8.8 ± 18 and 6.2 ± 6.7 years respectively. The most frequent IVIG indication was myositis (38/78), followed by gastrointestinal (27/78) and cutaneous (17/78) involvement. The median number of cycles given were 5. 54, 53 and 9 patients have been treated previously with glucocorticoids, synthetic disease-modifying antirheumatic drugs and biologic therapies respectively. After IVIG use we found significant improvements in muscular involvement (MRC ≥ 3/5 92% IVIG, p = 0.001 and CK levels from 1149 ± 2026 UI to 217 ± 224 UI, p = 0.02), mRSS (15 ± 12.4 to 13 ± 12.5, p = 0.015) and improvement in total score of UCLA GIT 2.0 (p = 0.05). None Anti-RNA polymerase III patients showed an adequate response in gastrointestinal involvement (0/7) in comparison with other antibodies (0 vs. 25, p = 0,039). Cardiorespiratory involvement remained stable. A total of 12 adverse events were reported with only one withdrawn due to serious adverse effect. CONCLUSIONS this study suggest that IVIG may improve myositis, gastrointestinal and skin involvement in SSc patients treated in routine care and seems to have a good safety profile.
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Affiliation(s)
- J Tandaipan
- Department of Rheumatology and Systemic Autoinmune Diseases, Hospital Universitari de la Santa Creu i Sant Pau, Barcelona, Spain
| | - A Guillén-Del-Castillo
- Unit of Systemic Autoimmune Diseases, Department of Internal Medicine, Hospital Universitari Vall d'Hebrón, Barcelona, Spain
| | - C P Simeón-Aznar
- Unit of Systemic Autoimmune Diseases, Department of Internal Medicine, Hospital Universitari Vall d'Hebrón, Barcelona, Spain
| | - P E Carreira
- Department of Rheumatology, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - C De la Puente
- Department of Rheumatology, Hospital Universitario Ramon y Cajal, Madrid, Spain
| | - J Narváez
- Department of Rheumatology, Hospital Universitari de Bellvitge, Hospitalet de Llobregat, Spain
| | - J Lluch
- Department of Rheumatology, Hospital Universitari de Bellvitge, Hospitalet de Llobregat, Spain
| | - M Rubio-Rivas
- Department of Internal Medicine, Hospital Universitari de Bellvitge, Hospitalet de Llobregat, Spain
| | - J J Alegre-Sancho
- Department of Rheumatology, Hospital Universitario Doctor Peset, Valencia, Spain
| | - G Bonilla
- Department of Rheumatology, Hospital Universitario La Paz, Madrid, Spain
| | - C Moriano
- Department of Rheumatology, Complejo Asistencial Universitario de León, León, Spain
| | - I Casafont-Sole
- Department of Rheumatology, Hospital Germans Trias i Pujol, Badalona, Spain
| | - R García-Vicuña
- Department of Rheumatology, Hospital Universitario de La Princesa, Madrid, Spain
| | - V Ortiz-Santamaría
- Department of Rheumatology, Hospital General de Granollers, Granollers, Spain
| | - E Riera
- Department of Rheumatology, Hospital Universitari Mútua de Terrassa, Terrassa, Spain
| | - B Atienza-Mateo
- Department of Rheumatology, Hospital Universitario Marques de Valdecilla, Santander, Spain
| | - R Blanco
- Department of Rheumatology, Hospital Universitario Marques de Valdecilla, Santander, Spain
| | - C Galisteo
- Department of Rheumatology, Hospital Universitari Parc Taulí, Sabadell, Spain
| | - J J Gonzalez-Martin
- Department of Rheumatology, Hospital Universitario HM San Chinarro, Madrid, Spain
| | - J M Pego-Reigosa
- Department of Rheumatology, Complejo Hospitalario Universitario de Vigo, IRIDIS (Investigation in Rheumatology and Immune-Mediated Diseases)-VIGO Group, Galicia Sur Health Research Institute (IISGS), Vigo, Spain
| | - A Pros
- Department of Rheumatology, Hospital del Mar, Barcelona, Spain
| | - S Heredia
- Department of Rheumatology, Hospital Sant Joan Despí Moisès Broggi, Sant Joan Despí, Spain
| | - I Castellví
- Department of Rheumatology and Systemic Autoinmune Diseases, Hospital Universitari de la Santa Creu i Sant Pau, Barcelona, Spain; Department of Medicine, Universitat Autonoma de Barcelona, Spain.
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Speca S, Farhat MM, Jendoubi M, Guerrier T, Sanges S, Staumont-Sallé D, Hachulla E, Dubucquoi S, Sobanski V, Collet A, Launay D. Intravenous immunoglobulins improve skin fibrosis in experimental models of systemic sclerosis. Sci Rep 2023; 13:15102. [PMID: 37700078 PMCID: PMC10497569 DOI: 10.1038/s41598-023-42464-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Accepted: 09/11/2023] [Indexed: 09/14/2023] Open
Abstract
Systemic sclerosis (SSc) is the most severe systemic autoimmune disease with currently no cure. Intravenous immunoglobulins (IVIg) are an attractive candidate in this disease to counteract inflammation and fibrosis but data are scarce and conflicting. This study, assessed the effects of IVIg in a murine HOCl-induced model of SSc. We showed that IVIg prevented skin inflammation and fibrosis, by mitigating the immune cell infiltration (p = 0.04), proinflammatory cytokines gene overexpression (IL1β, p = 0.04; TNFα, p = 0.04; IL6, p = 0.05), skin and dermal thickening (p = 0.003 at d21 and p = 0.0003 at d42), the expression markers of fibrosis, such as αSMA (p = 0.031 for mRNA and p = 0.05 for protein), collagen (p = 0.05 for mRNA and p = 0.04 for protein, p = 0.05 for the hydroxyproline content) and fibronectin (p = 0.033 for mRNA). Moreover, IVIg prevented HOCl-induced alterations in splenic cell homeostasis. When administered in curative mode, despite their ability to reduce skin and dermal thickness (p < 0.0001 and p = 0.0002), IVIg showed partial or more mixed effects on skin inflammation and established fibrosis. These data favor further clinical trials in SSc patients on the potential efficiency of early and/or repeated IVIg administration.
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Affiliation(s)
- Silvia Speca
- University of Lille, Inserm, CHU Lille, U1286-INFINITE-Institute for Translational Research in Inflammation, Lille, France
| | - Meryem-Maud Farhat
- University of Lille, Inserm, CHU Lille, U1286-INFINITE-Institute for Translational Research in Inflammation, Lille, France
- Département de Médecine Interne Et Immunologie Clinique, Centre de Référence Des Maladies Auto-Immunes Systémiques Rares du Nord Et Nord-Ouest de France (CeRAINO), CHU Lille, Lille, France
| | - Manel Jendoubi
- University of Lille, Inserm, CHU Lille, U1286-INFINITE-Institute for Translational Research in Inflammation, Lille, France
| | - Thomas Guerrier
- University of Lille, Inserm, CHU Lille, U1286-INFINITE-Institute for Translational Research in Inflammation, Lille, France
| | - Sébastien Sanges
- University of Lille, Inserm, CHU Lille, U1286-INFINITE-Institute for Translational Research in Inflammation, Lille, France
- Département de Médecine Interne Et Immunologie Clinique, Centre de Référence Des Maladies Auto-Immunes Systémiques Rares du Nord Et Nord-Ouest de France (CeRAINO), CHU Lille, Lille, France
| | - Delphine Staumont-Sallé
- University of Lille, Inserm, CHU Lille, U1286-INFINITE-Institute for Translational Research in Inflammation, Lille, France
- Service de Dermatologie, CHU Lille, Lille, France
| | - Eric Hachulla
- University of Lille, Inserm, CHU Lille, U1286-INFINITE-Institute for Translational Research in Inflammation, Lille, France
- Département de Médecine Interne Et Immunologie Clinique, Centre de Référence Des Maladies Auto-Immunes Systémiques Rares du Nord Et Nord-Ouest de France (CeRAINO), CHU Lille, Lille, France
| | - Sylvain Dubucquoi
- University of Lille, Inserm, CHU Lille, U1286-INFINITE-Institute for Translational Research in Inflammation, Lille, France
- Institut d'Immunologie, Centre de Biologie Pathologie, CHU Lille, Lille, France
| | - Vincent Sobanski
- University of Lille, Inserm, CHU Lille, U1286-INFINITE-Institute for Translational Research in Inflammation, Lille, France
- Département de Médecine Interne Et Immunologie Clinique, Centre de Référence Des Maladies Auto-Immunes Systémiques Rares du Nord Et Nord-Ouest de France (CeRAINO), CHU Lille, Lille, France
| | - Aurore Collet
- University of Lille, Inserm, CHU Lille, U1286-INFINITE-Institute for Translational Research in Inflammation, Lille, France
- Institut d'Immunologie, Centre de Biologie Pathologie, CHU Lille, Lille, France
| | - David Launay
- University of Lille, Inserm, CHU Lille, U1286-INFINITE-Institute for Translational Research in Inflammation, Lille, France.
- Département de Médecine Interne Et Immunologie Clinique, Centre de Référence Des Maladies Auto-Immunes Systémiques Rares du Nord Et Nord-Ouest de France (CeRAINO), CHU Lille, Lille, France.
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Farina N, Campochiaro C, Lescoat A, Benanti G, De Luca G, Khanna D, Dagna L, Matucci-Cerinic M. Drug development and novel therapeutics to ensure a personalized approach in the treatment of systemic sclerosis. Expert Rev Clin Immunol 2023; 19:1131-1142. [PMID: 37366065 DOI: 10.1080/1744666x.2023.2230370] [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: 03/24/2023] [Accepted: 06/23/2023] [Indexed: 06/28/2023]
Abstract
INTRODUCTION Systemic sclerosis (SSc) is a systemic disease encompassing autoimmunity, vasculopathy, and fibrosis. SSc is still burdened by high mortality and morbidity rates. Recent advances in understanding the pathogenesis of SSc have identified novel potential therapeutic targets. Several clinical trials have been subsequently designed to evaluate the efficacy of a number of new drugs. The aim of this review is to provide clinicians with useful information about these novel molecules. AREA COVERED In this narrative review, we summarize the available evidence regarding the most promising targeted therapies currently under investigation for the treatment of SSc. These medications include kinase inhibitors, B-cell depleting agents, and interleukin inhibitors. EXPERT OPINION Over the next five years, several new, targeted drugs will be introduced in clinical practice for the treatment of SSc. Such pharmacological agents will expand the existing pharmacopoeia and enable a more personalized and effective approach to patients with SSc. Thus, it will not only possible to target a specific disease domain, but also different stages of the disease.
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Affiliation(s)
- N Farina
- Unit of Immunology, Rheumatology, Allergy and Rare diseases, IRCCS San Raffaele Hospital, Milan, Italy
| | - C Campochiaro
- Unit of Immunology, Rheumatology, Allergy and Rare diseases, IRCCS San Raffaele Hospital, Milan, Italy
- Vita-Salute San Raffaele University, Milan, Italy
| | - A Lescoat
- Department of Internal Medicine and Clinical Immunology, Rennes University Hospital, Rennes, France
| | - G Benanti
- Unit of Immunology, Rheumatology, Allergy and Rare diseases, IRCCS San Raffaele Hospital, Milan, Italy
- Vita-Salute San Raffaele University, Milan, Italy
| | - G De Luca
- Unit of Immunology, Rheumatology, Allergy and Rare diseases, IRCCS San Raffaele Hospital, Milan, Italy
- Vita-Salute San Raffaele University, Milan, Italy
| | - D Khanna
- Department of Internal Medicine, University of Michigan, Ann Arbor, USA
| | - L Dagna
- Unit of Immunology, Rheumatology, Allergy and Rare diseases, IRCCS San Raffaele Hospital, Milan, Italy
- Vita-Salute San Raffaele University, Milan, Italy
| | - M Matucci-Cerinic
- Unit of Immunology, Rheumatology, Allergy and Rare diseases, IRCCS San Raffaele Hospital, Milan, Italy
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
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Mogyoróssy S, Nagy-Vincze M, Griger Z, Dankó K, Szabó NA, Szekanecz Z, Szűcs G, Szántó A, Bodoki L. Novel aspects of muscle involvement in immune-mediated inflammatory arthropathies and connective tissue diseases. Autoimmun Rev 2023; 22:103311. [PMID: 36889657 DOI: 10.1016/j.autrev.2023.103311] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Accepted: 03/02/2023] [Indexed: 03/08/2023]
Abstract
Myalgia, myopathy and myositis are the most important types of muscle impairment in immune-mediated inflammatory arthropathies and connective tissue diseases. Multiple pathogenetic and histological changes occur in the striated muscles of these patients. Clinically, the most important muscle involvement is the one that causes complaints to the patients. In everyday practice, insidious symptoms present a serious problem for the clinician; in many cases, it is difficult to decide when and how to treat the muscle symptoms that are often present only subclinically. In this work, authors review the international literature on the types of muscle problems in autoimmune diseases. In scleroderma histopathological picture of muscle shows a very heterogeneous picture, necrosis and atrophy are common. In rheumatoid arthritis and systemic lupus erythematosus, myopathy is a much less defined concept, further studies are needed to describe it. According to our view, overlap myositis should be recognized as a separate entity, preferably with distinct histological and serological characteristics. More studies are needed to describe muscle impairment in autoimmune diseases which may help to explore this topic more in depth and be of clinical use.
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Affiliation(s)
- Sándor Mogyoróssy
- Department of Rheumatology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Melinda Nagy-Vincze
- Division of Clinical Immunology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Zoltán Griger
- Division of Clinical Immunology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Katalin Dankó
- Division of Clinical Immunology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Nóra Anna Szabó
- National Institute of Rheumatology and Physiotherapy, Budapest, Hungary
| | - Zoltán Szekanecz
- Department of Rheumatology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Gabriella Szűcs
- Department of Rheumatology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Antónia Szántó
- Division of Clinical Immunology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Levente Bodoki
- Department of Rheumatology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary.
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Hua C, Chen S, Cheng H. Therapeutic potential of mesenchymal stem cells for refractory inflammatory and immune skin diseases. Hum Vaccin Immunother 2022; 18:2144667. [PMID: 36382475 PMCID: PMC9746473 DOI: 10.1080/21645515.2022.2144667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Inflammatory and immunological skin diseases such as psoriasis, systemic sclerosis, dermatomyositis and atopic dermatitis, whose abnormal skin manifestations not only affected life quality but also caused social discrimination, have been wildly concerned. Complex variables such as hereditary predisposition, racial differences, age and gender can influence the prevalence and therapeutic options. The population of patients with unsatisfactory curative effects under current therapies is growing, it's advisable to seek novel and advanced therapies that are less likely to cause systemic damage. Mesenchymal stem cells (MSCs) have been proven with therapeutic benefits in tissue regeneration, self-renewal and differentiation abilities when treating refractory skin disorders in preclinical and clinical studies. Here we highlighted the immune modulation and inflammation suppression of MSCs in skin diseases, summarized current studies, research progress and related clinical trials, hoping to strengthen the confidence of promising MSCs therapy in future clinical application.
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Affiliation(s)
- Chunting Hua
- Department of Dermatology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Siji Chen
- Department of Dermatology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Hao Cheng
- Department of Dermatology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
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Graßhoff H, Fourlakis K, Comdühr S, Riemekasten G. Autoantibodies as Biomarker and Therapeutic Target in Systemic Sclerosis. Biomedicines 2022; 10:biomedicines10092150. [PMID: 36140251 PMCID: PMC9496142 DOI: 10.3390/biomedicines10092150] [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: 07/01/2022] [Revised: 08/21/2022] [Accepted: 08/23/2022] [Indexed: 12/03/2022] Open
Abstract
Systemic sclerosis (SSc) is a rare connective tissue disorder characterized by immune dysregulation evoking the pathophysiological triad of inflammation, fibrosis and vasculopathy. In SSc, several alterations in the B-cell compartment have been described, leading to polyclonal B-cell hyperreactivity, hypergammaglobulinemia and autoantibody production. Autoreactive B cells and autoantibodies promote and maintain pathologic mechanisms. In addition, autoantibodies in SSc are important biomarkers for predicting clinical phenotype and disease progression. Autoreactive B cells and autoantibodies represent potentially promising targets for therapeutic approaches including B-cell-targeting therapies, as well as strategies for unselective and selective removal of autoantibodies. In this review, we present mechanisms of the innate immune system leading to the generation of autoantibodies, alterations of the B-cell compartment in SSc, autoantibodies as biomarkers and autoantibody-mediated pathologies in SSc as well as potential therapeutic approaches to target these.
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Chepy A, Bourel L, Koether V, Launay D, Dubucquoi S, Sobanski V. Can Antinuclear Antibodies Have a Pathogenic Role in Systemic Sclerosis? Front Immunol 2022; 13:930970. [PMID: 35837382 PMCID: PMC9274282 DOI: 10.3389/fimmu.2022.930970] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Accepted: 05/26/2022] [Indexed: 12/30/2022] Open
Abstract
Systemic sclerosis (SSc) is a connective tissue disease characterized by extensive fibrosis of the skin and internal organs, associated with vasculopathy and autoimmune features. Antinuclear antibodies (ANA) are found in almost all SSc patients and constitute strong diagnosis and prognosis biomarkers. However, it remains unclear whether ANA are simple bystanders or if they can have a role in the pathophysiology of the disease. One might think that the nuclear nature of their targets prevents any accessibility to autoantibodies. Nevertheless, recent data suggest that ANA could be pathogenic or at least contribute to the perennation of the disease. We review here first the indirect clues of the contribution of ANA to SSc: they are associated to the disease subtypes, they may precede disease onset, their titer correlates with disease activity and severity, there is an association between molecular subsets, and some patients can respond to B-cell targeting therapy. Then, we describe in a second part the mechanisms of ANA production in SSc from individual genetic background to post-transcriptional modifications of neoantigens. Finally, we elaborate on the potential mechanisms of pathogenicity: ANA could be pathogenic through immune-complex-mediated mechanisms; other processes potentially involve molecular mimicry and ANA penetration into the target cell, with a focus on anti-topoisomerase-I antibodies, which are the most probable candidate to play a role in the pathophysiology of SSc. Finally, we outline some technical and conceptual ways to improve our understanding in this field.
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Affiliation(s)
- Aurélien Chepy
- Univ. Lille, Inserm, CHU Lille, U1286—INFINITE—Institute for Translational Research in Inflammation, Lille, France
- CHU Lille, Département de Médecine Interne et Immunologie Clinique, Centre de Référence des Maladies Auto-immunes Systémiques Rares du Nord et Nord-Ouest de France (CeRAINO), Lille, France
| | - Louisa Bourel
- Univ. Lille, Inserm, CHU Lille, U1286—INFINITE—Institute for Translational Research in Inflammation, Lille, France
| | - Vincent Koether
- Univ. Lille, Inserm, CHU Lille, U1286—INFINITE—Institute for Translational Research in Inflammation, Lille, France
- CHU Lille, Département de Médecine Interne et Immunologie Clinique, Centre de Référence des Maladies Auto-immunes Systémiques Rares du Nord et Nord-Ouest de France (CeRAINO), Lille, France
| | - David Launay
- Univ. Lille, Inserm, CHU Lille, U1286—INFINITE—Institute for Translational Research in Inflammation, Lille, France
- CHU Lille, Département de Médecine Interne et Immunologie Clinique, Centre de Référence des Maladies Auto-immunes Systémiques Rares du Nord et Nord-Ouest de France (CeRAINO), Lille, France
| | - Sylvain Dubucquoi
- Univ. Lille, Inserm, CHU Lille, U1286—INFINITE—Institute for Translational Research in Inflammation, Lille, France
- CHU Lille, Institut d’Immunologie, Lille, France
| | - Vincent Sobanski
- Univ. Lille, Inserm, CHU Lille, U1286—INFINITE—Institute for Translational Research in Inflammation, Lille, France
- CHU Lille, Département de Médecine Interne et Immunologie Clinique, Centre de Référence des Maladies Auto-immunes Systémiques Rares du Nord et Nord-Ouest de France (CeRAINO), Lille, France
- Institut Universitaire de France (IUF), Paris, France
- *Correspondence: Vincent Sobanski,
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