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D’Agnano V, Mariniello DF, Ruotolo M, Quarcio G, Moriello A, Conte S, Sorrentino A, Sanduzzi Zamparelli S, Bianco A, Perrotta F. Targeting Progression in Pulmonary Fibrosis: An Overview of Underlying Mechanisms, Molecular Biomarkers, and Therapeutic Intervention. Life (Basel) 2024; 14:229. [PMID: 38398739 PMCID: PMC10890660 DOI: 10.3390/life14020229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Revised: 01/22/2024] [Accepted: 02/01/2024] [Indexed: 02/25/2024] Open
Abstract
Interstitial lung diseases comprise a heterogenous range of diffuse lung disorders, potentially resulting in pulmonary fibrosis. While idiopathic pulmonary fibrosis has been recognized as the paradigm of a progressive fibrosing interstitial lung disease, other conditions with a progressive fibrosing phenotype characterized by a significant deterioration of the lung function may lead to a burden of significant symptoms, a reduced quality of life, and increased mortality, despite treatment. There is now evidence indicating that some common underlying biological mechanisms can be shared among different chronic fibrosing disorders; therefore, different biomarkers for disease-activity monitoring and prognostic assessment are under evaluation. Thus, understanding the common pathways that induce the progression of pulmonary fibrosis, comprehending the diversity of these diseases, and identifying new molecular markers and potential therapeutic targets remain highly crucial assignments. The purpose of this review is to examine the main pathological mechanisms regulating the progression of fibrosis in interstitial lung diseases and to provide an overview of potential biomarker and therapeutic options for patients with progressive pulmonary fibrosis.
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Affiliation(s)
- Vito D’Agnano
- Department of Translational Medical Sciences, University of Campania L. Vanvitelli, 80131 Naples, Italy; (V.D.); (D.F.M.); (M.R.); (G.Q.); (A.M.); (S.C.); (A.S.); (A.B.)
| | - Domenica Francesca Mariniello
- Department of Translational Medical Sciences, University of Campania L. Vanvitelli, 80131 Naples, Italy; (V.D.); (D.F.M.); (M.R.); (G.Q.); (A.M.); (S.C.); (A.S.); (A.B.)
| | - Michela Ruotolo
- Department of Translational Medical Sciences, University of Campania L. Vanvitelli, 80131 Naples, Italy; (V.D.); (D.F.M.); (M.R.); (G.Q.); (A.M.); (S.C.); (A.S.); (A.B.)
| | - Gianluca Quarcio
- Department of Translational Medical Sciences, University of Campania L. Vanvitelli, 80131 Naples, Italy; (V.D.); (D.F.M.); (M.R.); (G.Q.); (A.M.); (S.C.); (A.S.); (A.B.)
| | - Alessandro Moriello
- Department of Translational Medical Sciences, University of Campania L. Vanvitelli, 80131 Naples, Italy; (V.D.); (D.F.M.); (M.R.); (G.Q.); (A.M.); (S.C.); (A.S.); (A.B.)
| | - Stefano Conte
- Department of Translational Medical Sciences, University of Campania L. Vanvitelli, 80131 Naples, Italy; (V.D.); (D.F.M.); (M.R.); (G.Q.); (A.M.); (S.C.); (A.S.); (A.B.)
| | - Antonio Sorrentino
- Department of Translational Medical Sciences, University of Campania L. Vanvitelli, 80131 Naples, Italy; (V.D.); (D.F.M.); (M.R.); (G.Q.); (A.M.); (S.C.); (A.S.); (A.B.)
| | | | - Andrea Bianco
- Department of Translational Medical Sciences, University of Campania L. Vanvitelli, 80131 Naples, Italy; (V.D.); (D.F.M.); (M.R.); (G.Q.); (A.M.); (S.C.); (A.S.); (A.B.)
| | - Fabio Perrotta
- Department of Translational Medical Sciences, University of Campania L. Vanvitelli, 80131 Naples, Italy; (V.D.); (D.F.M.); (M.R.); (G.Q.); (A.M.); (S.C.); (A.S.); (A.B.)
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Kim Y, Yang HI, Kim KS. Etiology and Pathogenesis of Rheumatoid Arthritis-Interstitial Lung Disease. Int J Mol Sci 2023; 24:14509. [PMID: 37833957 PMCID: PMC10572849 DOI: 10.3390/ijms241914509] [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: 09/03/2023] [Revised: 09/19/2023] [Accepted: 09/23/2023] [Indexed: 10/15/2023] Open
Abstract
Interstitial lung disease (ILD) is one of the most serious extra-articular complications of rheumatoid arthritis (RA), which increases the mortality of RA. Because the pathogenesis of RA-ILD remains poorly understood, appropriate therapeutic strategies and biomarkers have not yet been identified. Thus, the goal of this review was to summarize and analyze the reported data on the etiology and pathogenesis of RA-ILD. The incidence of RA-ILD increases with age, and is also generally higher in men than in women and in patients with specific genetic variations and ethnicity. Lifestyle factors associated with an increased risk of RA-ILD include smoking and exposure to pollutants. The presence of an anti-cyclic citrullinated peptide antibody, high RA disease activity, and rheumatoid factor positivity also increase the risk of RA-ILD. We also explored the roles of biological processes (e.g., fibroblast-myofibroblast transition, epithelial-mesenchymal transition, and immunological processes), signaling pathways (e.g., JAK/STAT and PI3K/Akt), and the histopathology of RA involved in RA-ILD pathogenesis based on published preclinical and clinical models of RA-ILD in animal and human studies.
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Affiliation(s)
- Yerin Kim
- Department of Medicine, Catholic Kwandong University College of Medicine, Gangneung 25601, Republic of Korea;
| | - Hyung-In Yang
- Division of Rheumatology, Department of Internal Medicine, College of Medicine, Kyung Hee University Hospital at Gangdong, Seoul 05278, Republic of Korea;
| | - Kyoung-Soo Kim
- East-West Bone & Joint Disease Research Institute, Kyung Hee University Hospital at Gangdong, Seoul 05278, Republic of Korea
- Department of Clinical Pharmacology and Therapeutics, Kyung Hee University School of Medicine, Seoul 02447, Republic of Korea
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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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Kim H, Cho SK, Song YJ, Kang J, Jeong SA, Kim HW, Choi CB, Kim TH, Jun JB, Bae SC, Yoo DH, Lee H, Park DW, Sohn JW, Yoon HJ, Hong SJ, Yoo SJ, Choi YW, Lee Y, Kim SH, Sung YK. Clinical characteristics of rheumatoid arthritis patients with interstitial lung disease: baseline data of a single-center prospective cohort. Arthritis Res Ther 2023; 25:43. [PMID: 36932433 PMCID: PMC10022152 DOI: 10.1186/s13075-023-03024-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Accepted: 02/28/2023] [Indexed: 03/19/2023] Open
Abstract
BACKGROUND To introduce a prospective cohort for rheumatoid arthritis (RA) patients with interstitial lung disease (ILD) and to identify their clinical features in comparison with RA patients without ILD. METHODS Using a multidisciplinary collaborative approach, a single-center cohort for RA patients with ILD (RA-ILD) was established in May 2017, and enrolment data from May 2017 to March 2021 were used to compare the clinical features of RA patients without ILD (RA-non ILD). Multivariable logistic regression analysis was used to identify factors associated with ILD in RA patients. RESULTS Among 148 RA-ILD and 410 RA-non ILD patients, participants in the RA-ILD group were older (65.8 ± 9.9 vs. 58.0 ± 10.4 years, P < 0.001) and included more males (35.8% vs. 14.6%, P < 0.001) than in the RA-non ILD group. The RA-ILD group had a higher proportion of late-onset RA patients (age ≥ 60 years) than in the comparator group (43.9% vs. 14.2%, P < 0.001). Multivariable logistic regression analysis showed that higher age at RA onset (OR 1.056, 95% CI 1.021-1.091), higher body mass index (BMI; OR 1.65, 95% CI 1.036-2.629), smoking history (OR 2.484, 95% CI 1.071-5.764), and oral glucocorticoid use (OR 3.562, 95% CI 2.160-5.874) were associated with ILD in RA patients, whereas methotrexate use was less likely to be associated with ILD (OR 0.253, 95% CI 0.155-0.412). CONCLUSIONS Higher age at RA onset, smoking history, and higher BMI were associated with the presence of ILD among RA patients. Oral glucocorticoids were more frequently used whereas methotrexate was less likely to be used in RA-ILD patients.
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Affiliation(s)
- Hyoungyoung Kim
- Department of Rheumatology, Hanyang University Hospital for Rheumatic Diseases, Seoul, Republic of Korea
- Hanyang University Institute for Rheumatology Research, Seoul, Republic of Korea
| | - Soo-Kyung Cho
- Department of Rheumatology, Hanyang University Hospital for Rheumatic Diseases, Seoul, Republic of Korea
- Hanyang University Institute for Rheumatology Research, Seoul, Republic of Korea
| | - Yeo-Jin Song
- Department of Rheumatology, Hanyang University Hospital for Rheumatic Diseases, Seoul, Republic of Korea
- Hanyang University Institute for Rheumatology Research, Seoul, Republic of Korea
| | - Juyeon Kang
- Department of Internal Medicine, Inje University Busan Paik Hospital, Inje University College of Medicine, Busan, Republic of Korea
| | - Seung-A Jeong
- Department of Rheumatology, Hanyang University Hospital for Rheumatic Diseases, Seoul, Republic of Korea
| | - Hye Won Kim
- Department of Rheumatology, Hanyang University Hospital for Rheumatic Diseases, Seoul, Republic of Korea
| | - Chan-Bum Choi
- Department of Rheumatology, Hanyang University Hospital for Rheumatic Diseases, Seoul, Republic of Korea
- Hanyang University Institute for Rheumatology Research, Seoul, Republic of Korea
| | - Tae-Hwan Kim
- Department of Rheumatology, Hanyang University Hospital for Rheumatic Diseases, Seoul, Republic of Korea
- Hanyang University Institute for Rheumatology Research, Seoul, Republic of Korea
| | - Jae-Bum Jun
- Department of Rheumatology, Hanyang University Hospital for Rheumatic Diseases, Seoul, Republic of Korea
- Hanyang University Institute for Rheumatology Research, Seoul, Republic of Korea
| | - Sang-Cheol Bae
- Department of Rheumatology, Hanyang University Hospital for Rheumatic Diseases, Seoul, Republic of Korea
- Hanyang University Institute for Rheumatology Research, Seoul, Republic of Korea
| | - Dae-Hyun Yoo
- Department of Rheumatology, Hanyang University Hospital for Rheumatic Diseases, Seoul, Republic of Korea
- Hanyang University Institute for Rheumatology Research, Seoul, Republic of Korea
| | - Hyun Lee
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Republic of Korea
| | - Dong Won Park
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Republic of Korea
| | - Jang Won Sohn
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Republic of Korea
| | - Ho Joo Yoon
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Republic of Korea
| | - Su Jin Hong
- Department of Radiology, Hanyang University College of Medicine, Hanyang University Guri Hospital, Guri, Republic of Korea
| | - Seung-Jin Yoo
- Department of Radiology, Hanyang University College of Medicine, Hanyang University Hospital, Seoul, Republic of Korea
| | - Yo Won Choi
- Department of Radiology, Hanyang University College of Medicine, Hanyang University Hospital, Seoul, Republic of Korea
| | - Youkyung Lee
- Department of Radiology, Hanyang University College of Medicine, Hanyang University Guri Hospital, Guri, Republic of Korea
| | - Sang Heon Kim
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Republic of Korea
| | - Yoon-Kyoung Sung
- Department of Rheumatology, Hanyang University Hospital for Rheumatic Diseases, Seoul, Republic of Korea.
- Hanyang University Institute for Rheumatology Research, Seoul, Republic of Korea.
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Stainer A, Tonutti A, De Santis M, Amati F, Ceribelli A, Bongiovanni G, Torrisi C, Iacopino A, Mangiameli G, Aliberti S, Selmi C. Unmet needs and perspectives in rheumatoid arthritis-associated interstitial lung disease: A critical review. Front Med (Lausanne) 2023; 10:1129939. [PMID: 37007765 PMCID: PMC10062456 DOI: 10.3389/fmed.2023.1129939] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Accepted: 02/20/2023] [Indexed: 03/18/2023] Open
Abstract
Rheumatoid arthritis (RA) is a chronic systemic autoimmune disease characterized by synovitis as the most common clinical manifestation, and interstitial lung disease (RA-ILD) represents one of the most common and potentially severe extra-articular features. Our current understanding of the mechanisms and predictors of RA-ILD is limited despite the demonstration that an early identification of progressive fibrosing forms is crucial to provide timely treatment with antifibrotic therapies. While high resolution computed tomography is the gold standard technique for the diagnosis and follow-up of RA-ILD, it has been hypothesized that serum biomarkers (including novel and rare autoantibodies), new imaging techniques such as ultrasound of the lung, or the application of innovative radiologic algorithms may help towards predicting and detecting early forms of diseases. Further, while new treatments are becoming available for idiopathic and connective tissue disease-associated forms of lung fibrosis, the treatment of RA-ILD remains anecdotal and largely unexplored. We are convinced that a better understanding of the mechanisms connecting RA with ILD in a subgroup of patients as well as the creation of adequate diagnostic pathways will be mandatory steps for a more effective management of this clinically challenging entity.
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Affiliation(s)
- Anna Stainer
- Department of Biomedical Sciences, Humanitas University, Milan, Italy
- Division of Respiratory Medicine, IRCCS Humanitas Research Hospital, Milan, Italy
| | - Antonio Tonutti
- Department of Biomedical Sciences, Humanitas University, Milan, Italy
- IRCCS Humanitas Research Hospital, Milan, Italy
| | - Maria De Santis
- Department of Biomedical Sciences, Humanitas University, Milan, Italy
- Division of Rheumatology and Clinical Immunology, IRCCS Humanitas Research Hospital, Milan, Italy
- *Correspondence: Maria De Santis,
| | - Francesco Amati
- Department of Biomedical Sciences, Humanitas University, Milan, Italy
- Division of Respiratory Medicine, IRCCS Humanitas Research Hospital, Milan, Italy
| | - Angela Ceribelli
- Department of Biomedical Sciences, Humanitas University, Milan, Italy
- Division of Rheumatology and Clinical Immunology, IRCCS Humanitas Research Hospital, Milan, Italy
| | - Gabriele Bongiovanni
- Department of Biomedical Sciences, Humanitas University, Milan, Italy
- IRCCS Humanitas Research Hospital, Milan, Italy
| | - Chiara Torrisi
- Department of Radiology, IRCCS Humanitas Research Hospital, Milan, Italy
| | - Antonio Iacopino
- Department of Radiology, IRCCS Humanitas Research Hospital, Milan, Italy
| | - Giuseppe Mangiameli
- Department of Biomedical Sciences, Humanitas University, Milan, Italy
- Division of Thoracic Surgery, IRCCS Humanitas Research Hospital, Milan, Italy
| | - Stefano Aliberti
- Department of Biomedical Sciences, Humanitas University, Milan, Italy
- Division of Respiratory Medicine, IRCCS Humanitas Research Hospital, Milan, Italy
| | - Carlo Selmi
- Department of Biomedical Sciences, Humanitas University, Milan, Italy
- Division of Rheumatology and Clinical Immunology, IRCCS Humanitas Research Hospital, Milan, Italy
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Bridi GDP, Sawamura MVY, Wanderley M, Souza LVS, Kairalla RA, Kawano-Dourado L, Baldi BG. Tomographic pleuropulmonary manifestations in rheumatoid arthritis: a pictorial essay. J Bras Pneumol 2023; 49:e20220466. [PMID: 36790285 PMCID: PMC9970368 DOI: 10.36416/1806-3756/e20220466] [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: 12/11/2022] [Accepted: 12/30/2022] [Indexed: 01/26/2023] Open
Abstract
Rheumatoid arthritis (RA) is an autoimmune inflammatory and heterogeneous disease that affects several systems, especially the joints. Among the extra-articular manifestations of RA, pleuropulmonary involvement occurs frequently, with different presentations, potentially in all anatomic thoracic compartments, and may determine high morbidity and mortality. The most common pleuropulmonary manifestations in patients with RA include interstitial lung disease (ILD), pleural disease, pulmonary arterial hypertension, rheumatoid lung nodules, airway disease (bronchiectasis and bronchiolitis), and lymphadenopathy. Pulmonary hypertension and ILD are the manifestations with the greatest negative impact in prognosis. HRCT of the chest is essential in the evaluation of patients with RA with respiratory symptoms, especially those with higher risk factors for ILD, such as male gender, smoking, older age, high levels of rheumatoid factor, or positive anti-cyclic citrullinated peptide antibody results. Additionally, other etiologies that may determine tomographic pleuropulmonary manifestations in patients with RA are infections, neoplasms, and drug-induced lung disease. In these scenarios, clinical presentation is heterogeneous, varying from being asymptomatic to having progressive respiratory failure. Knowledge on the potential etiologies causing tomographic pleuropulmonary manifestations in patients with RA coupled with proper clinical reasoning is crucial to diagnose and treat these patients.
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Affiliation(s)
- Guilherme das Posses Bridi
- . Divisão de Pneumologia, Instituto do Coração - InCor - Hospital das ClÃnicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo (SP) Brasil
| | - Márcio Valente Yamada Sawamura
- . Instituto de Radiologia, Hospital das ClÃnicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo (SP) Brasil
| | - Mark Wanderley
- . Divisão de Pneumologia, Instituto do Coração - InCor - Hospital das ClÃnicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo (SP) Brasil
| | | | - Ronaldo Adib Kairalla
- . Divisão de Pneumologia, Instituto do Coração - InCor - Hospital das ClÃnicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo (SP) Brasil.,. Núcleo de Tórax, Hospital SÃrio-Libanês, São Paulo, Brasil
| | - LetÃcia Kawano-Dourado
- . Divisão de Pneumologia, Instituto do Coração - InCor - Hospital das ClÃnicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo (SP) Brasil.,. Hcor Research Institute, Hospital do Coração, São Paulo (SP) Brasil.,. MAGIC Evidence Ecosystem Foundation, Oslo, Norway
| | - Bruno Guedes Baldi
- . Divisão de Pneumologia, Instituto do Coração - InCor - Hospital das ClÃnicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo (SP) Brasil.,. Hospital do Coração, São Paulo (SP) Brasil
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Diesler R, Cottin V. Pulmonary fibrosis associated with rheumatoid arthritis: from pathophysiology to treatment strategies. Expert Rev Respir Med 2022; 16:541-553. [PMID: 35695895 DOI: 10.1080/17476348.2022.2089116] [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: 11/04/2022]
Abstract
INTRODUCTION Rheumatoid arthritis (RA) is the most common inflammatory autoimmune disease, characterised by symmetric destructive arthritis and synovitis. Lung involvement is frequent, including in the form of interstitial lung disease (ILD). RA-ILD often presents with a radiologic and pathologic pattern of usual interstitial pneumonia, similar to idiopathic pulmonary fibrosis, highlighting the similarities between the two diseases, but other patterns and pathological associations are described. AREAS COVERED This article reviews the pathogenesis of pulmonary fibrosis in the setting of rheumatoid arthritis as well as the current and future therapeutic options. EXPERT OPINION Pulmonary fibrosis in the setting of RA-ILD is an example of genotype-environment interaction and involves multiple mechanisms including autoimmunity, inflammation and fibrogenesis. Despite that ILD conveys most of the exceeding mortality in RA patients, there are no official guidelines for the management of RA-ILD. Attention should be paid to potential lung toxicity of RA treatment even though some of them might help stabilise the ILD. Current standard of care is often composed of glucocorticoids that may be associated with immunosuppressive therapy. Following the approval of antifibrotic therapy for ILDs with a progressive fibrosing phenotype, current works are evaluating the benefit of such treatment in RA-ILD.
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Affiliation(s)
- Rémi Diesler
- National Reference Center for Rare Pulmonary Diseases, Louis Pradel Hospital, Hospices Civils de Lyon, University of Lyon, INRAE, Lyon, France
| | - Vincent Cottin
- National Reference Center for Rare Pulmonary Diseases, Louis Pradel Hospital, Hospices Civils de Lyon, University of Lyon, INRAE, Lyon, France
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Zheng B, Donohoe K, Hambly N, Johannson KA, Assayag D, Fisher JH, Manganas H, Marcoux V, Khalil N, Kolb M, Ryerson CJ. Clinical relevance of rheumatoid factor and anti-citrullinated peptides in fibrotic interstitial lung disease. Respirology 2022; 27:854-862. [PMID: 35652240 DOI: 10.1111/resp.14301] [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: 03/07/2022] [Accepted: 05/10/2022] [Indexed: 01/07/2023]
Abstract
BACKGROUND AND OBJECTIVE Rheumatoid arthritis (RA) is a frequent cause of interstitial lung disease (ILD); however, the impact of rheumatoid factor and anti-citrullinated peptide antibody seropositivity in ILD without connective tissue disease (CTD) is unclear. We examined the association of seropositivity with ILD progression, mortality and response to immunosuppression in non-CTD ILD. METHODS A total of 1570 non-CTD patients (with idiopathic pulmonary fibrosis, hypersensitivity pneumonitis, interstitial pneumonia with autoimmune features or unclassifiable ILD) and 181 RA-ILD patients were included from a prospective registry. Longitudinal forced vital capacity (FVC), transplant-free survival and incidence of progressive fibrosing-ILD (PF-ILD) were compared between seronegative non-CTD ILD (reference group), seropositive non-CTD ILD and RA-ILD using linear mixed-effect and Cox proportional hazards models adjusted for age, sex, smoking pack-years and baseline FVC. Interaction between seropositivity and immunosuppression on FVC decline was assessed in patients with ≥6 months of follow-up before and after the treatment. RESULTS Two hundred and seventeen (13.8%) patients with seropositive non-CTD ILD had similar rates of FVC decline and transplant-free survival compared to seronegative non-CTD ILD, but more frequently met the criteria for PF-ILD (hazard ratio [HR] = 1.35, p = 0.004). RA-ILD had slower FVC decline (p = 0.03), less PF-ILD (HR = 0.75, p = 0.03) and lower likelihood of lung transplant or death (HR = 0.66, p = 0.01) compared to seronegative non-CTD ILD. No interaction was found between seropositivity and treatment on FVC decline in non-CTD ILD. CONCLUSION Seropositivity in non-CTD ILD was not associated with improved outcomes or treatment response, highlighting the importance of other disease features in determining prognosis and predicting response to immunosuppression.
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Affiliation(s)
- Boyang Zheng
- Division of Rheumatology, McGill University, Montreal, Quebec, Canada.,Department of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Kathryn Donohoe
- Department of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Nathan Hambly
- Department of Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Kerri A Johannson
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Deborah Assayag
- Department of Medicine, McGill University, Montreal, Quebec, Canada
| | - Jolene H Fisher
- Department of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Helene Manganas
- Department of Medicine, Université de Montréal, Montreal, Quebec, Canada
| | - Veronica Marcoux
- Department of Medicine, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Nasreen Khalil
- Department of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Martin Kolb
- Department of Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Christopher J Ryerson
- Department of Medicine, University of British Columbia, Vancouver, British Columbia, Canada.,Centre for Heart Lung Innovation, St. Paul's Hospital, Vancouver, British Columbia, Canada
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