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Matson SM, Ngo LT, Sugawara Y, Fernando V, Lugo C, Azeem I, Harrison A, Alsup A, Nissen E, Koestler D, Washburn MP, Rekowski MJ, Wolters PJ, Lee JS, Solomon JJ, Demoruelle MK. Neutrophil extracellular traps linked to idiopathic pulmonary fibrosis severity and survival. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2024:2024.01.24.24301742. [PMID: 38343853 PMCID: PMC10854325 DOI: 10.1101/2024.01.24.24301742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/18/2024]
Abstract
Background Idiopathic pulmonary fibrosis (IPF) leads to progressive loss of lung function and mortality. Understanding mechanisms and markers of lung injury in IPF is paramount to improving outcomes for these patients. Despite the lack of systemic involvement in IPF, many analyses focus on identifying circulating prognostic markers. Using a proteomic discovery method followed by ELISA validation in multiple IPF lung compartments and cohorts we explored novel markers of IPF survival. Methods In our discovery analysis, agnostic label-free quantitative proteomics differentiated lung tissue protein expression based on survival trajectory (n=10). Following selection of the candidate pathway (neutrophil extracellular trap (NET) formation), we subsequently validated the presence of NETs in the IPF lung microenvironment using fully quantitative assays of known NET remnants in separate IPF cohorts (n=156 and n=52) with bronchoalveolar lavage fluid. We then assessed the correlation of these markers with baseline pulmonary function and survival. Results Discovery lung tissue proteomics identified NET formation as significantly associated with poor IPF survival. Using fully quantitative confirmatory tests for reproducibility we confirmed the presence of NET markers in IPF BALF and found significant correlations with worse pulmonary function in both cohorts (p<0.03 and p = 0.04 respectively). In the survival cohort, higher levels of NET markers predicted worse survival after adjusting for gender, age, and baseline physiologic severity (hazard ratio range: 1.79-2.19). Conclusions NET markers were associated with disease severity and worse survival in IPF. These findings suggest NET formation contributes to lung injury and decreased survival in IPF and may represent a potential therapeutic target.
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Affiliation(s)
- Scott M. Matson
- Division of Pulmonary, Critical Care and Sleep Medicine, University of Kansas School of Medicine, Kansas City, KS, USA
| | - Linh T. Ngo
- Division of Pulmonary, Critical Care and Sleep Medicine, University of Kansas School of Medicine, Kansas City, KS, USA
| | - Yui Sugawara
- Department of Respiratory Medicine, Respiratory Center, Toranomon Hospital, Tokyo, Japan
| | - Veani Fernando
- Division of Rheumatology, University of Colorado School of Medicine, Aurora, CO, USA
| | - Claudia Lugo
- Division of Rheumatology, University of Colorado School of Medicine, Aurora, CO, USA
| | - Imaan Azeem
- Division of Pulmonary, Critical Care and Sleep Medicine, University of Kansas School of Medicine, Kansas City, KS, USA
| | - Alexis Harrison
- Division of Pulmonary, Critical Care and Sleep Medicine, University of Kansas School of Medicine, Kansas City, KS, USA
| | - Alex Alsup
- Department of Biostatistics & Data Science, University of Kansas School of Medicine, Kansas City, KS, USA
| | - Emily Nissen
- Department of Biostatistics & Data Science, University of Kansas School of Medicine, Kansas City, KS, USA
| | - Devin Koestler
- Department of Biostatistics & Data Science, University of Kansas School of Medicine, Kansas City, KS, USA
| | - Michael P. Washburn
- Department of Cancer Biology, University of Kansas School of Medicine, Kansas City, KS, USA
| | - Michaella J. Rekowski
- Department of Cancer Biology, University of Kansas School of Medicine, Kansas City, KS, USA
| | - Paul J. Wolters
- Division of Pulmonary and Critical Care Medicine, University of California, San Francisco, CA, USA
| | - Joyce S. Lee
- Division of Pulmonary Sciences and Critical Care Medicine, University of Colorado, Aurora, CO, USA
| | - Joshua J. Solomon
- Division of Pulmonary, Critical Care and Sleep Medicine, National Jewish Health Hospital, Denver, CO
| | - M. Kristen Demoruelle
- Division of Rheumatology, University of Colorado School of Medicine, Aurora, CO, USA
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Chen L, Lin H, Qin L, Zhang G, Huang D, Chen P, Zhang X. Identification and validation of mutual hub genes in idiopathic pulmonary fibrosis and rheumatoid arthritis-associated usual interstitial pneumonia. Heliyon 2024; 10:e28088. [PMID: 38571583 PMCID: PMC10987927 DOI: 10.1016/j.heliyon.2024.e28088] [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: 10/31/2023] [Revised: 03/08/2024] [Accepted: 03/12/2024] [Indexed: 04/05/2024] Open
Abstract
Objectives The study aims at exploring common hub genes and pathways in idiopathic pulmonary fibrosis (IPF) and rheumatoid arthritis-associated usual interstitial pneumonia (RA-UIP) through integrated bioinformatics analyses. Methods The GSE199152 dataset containing lung tissue samples from IPF and RA-UIP patients was acquired from the Gene Expression Omnibus (GEO) database. The identification of overlapping differentially expressed genes (DEGs) in IPF and RA-UIP was carried out through R language. Protein-protein interaction (PPI) network analysis and module analysis were applied to filter mutual hub genes in the two diseases. Enrichment analyses were also conducted to analyze the possible biological functions and pathways of the overlapped DEGs and hub genes. The diagnostic value of key genes was assessed with R language, and the expressions of these genes in pulmonary cells of IPF and rheumatoid arthritis-associated interstitial lung disease (RA-ILD) patients were analyzed with single cell RNA-sequencing (scRNA-seq) datasets. The expression levels of hub genes were validated in blood samples from patients, specimens of human lung fibroblasts, lung tissue samples from mice, as well as external GEO datasets. Results Four common hub genes (THBS2, TIMP1, POSTN, and CD19) were screened. Enrichment analyses showed that the abnormal expressions of DEGs and hub genes may be connected with the onset of IPF and RA-UIP by regulating the progression of fibrosis. ScRNA-seq analyses illustrated that for both IPF and RA-ILD patients, THBS2, TIMP1, and POSTN were mainly expressed in lung fibroblasts, while CD19 was uniquely high-expressed in B cells. The qRT-PCR and immunohistochemistry (IHC) results verified that the expression levels of hub genes were mostly in accordance with the findings obtained from the bioinformatics analyses. Conclusion Though IPF and RA-UIP are distinct diseases, they may to some extent have mutual pathogenesis in the development of fibrosis. THBS2, TIMP1, POSTN, and CD19 may be the potential biomarkers of IPF and RA-UIP, and intervention on related pathways of these genes could offer new strategies for the precision treatment of IPF and RA-UIP.
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Affiliation(s)
- Liangyu Chen
- Faculty of Chinese Medicine, Macau University of Science and Technology, Macau, China
- Department of Respiratory and Critical Care Medicine, Zhuhai Hospital of Integrated Traditional Chinese and Western Medicine, Zhuhai, China
| | - Haobo Lin
- Department of Rheumatology, Guangdong Provincial People's Hospital, Guangzhou, China
- Guangdong Academy of Medical Sciences, Guangzhou, China
- Southern Medical University, Guangzhou, China
| | - Linmang Qin
- Department of Rheumatology, Guangdong Provincial People's Hospital, Guangzhou, China
- Guangdong Academy of Medical Sciences, Guangzhou, China
- Southern Medical University, Guangzhou, China
| | - Guangfeng Zhang
- Department of Rheumatology, Guangdong Provincial People's Hospital, Guangzhou, China
- Guangdong Academy of Medical Sciences, Guangzhou, China
- Southern Medical University, Guangzhou, China
| | - Donghui Huang
- Department of Respiratory and Critical Care Medicine, Zhuhai Hospital of Integrated Traditional Chinese and Western Medicine, Zhuhai, China
| | - Peisheng Chen
- Department of Respiratory and Critical Care Medicine, Zhuhai Hospital of Integrated Traditional Chinese and Western Medicine, Zhuhai, China
| | - Xiao Zhang
- Faculty of Chinese Medicine, Macau University of Science and Technology, Macau, China
- Department of Rheumatology, The Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen, China
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Jeong E, Hong H, Lee YA, Kim KS. Potential Rheumatoid Arthritis-Associated Interstitial Lung Disease Treatment and Computational Approach for Future Drug Development. Int J Mol Sci 2024; 25:2682. [PMID: 38473928 PMCID: PMC11154459 DOI: 10.3390/ijms25052682] [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: 01/22/2024] [Revised: 02/19/2024] [Accepted: 02/20/2024] [Indexed: 03/14/2024] Open
Abstract
Rheumatoid arthritis (RA) is a systemic autoimmune disease characterized by swelling in at least one joint. Owing to an overactive immune response, extra-articular manifestations are observed in certain cases, with interstitial lung disease (ILD) being the most common. Rheumatoid arthritis-associated interstitial lung disease (RA-ILD) is characterized by chronic inflammation of the interstitial space, which causes fibrosis and the scarring of lung tissue. Controlling inflammation and pulmonary fibrosis in RA-ILD is important because they are associated with high morbidity and mortality. Pirfenidone and nintedanib are specific drugs against idiopathic pulmonary fibrosis and showed efficacy against RA-ILD in several clinical trials. Immunosuppressants and disease-modifying antirheumatic drugs (DMARDs) with anti-fibrotic effects have also been used to treat RA-ILD. Immunosuppressants moderate the overexpression of cytokines and immune cells to reduce pulmonary damage and slow the progression of fibrosis. DMARDs with mild anti-fibrotic effects target specific fibrotic pathways to regulate fibrogenic cellular activity, extracellular matrix homeostasis, and oxidative stress levels. Therefore, specific medications are required to effectively treat RA-ILD. In this review, the commonly used RA-ILD treatments are discussed based on their molecular mechanisms and clinical trial results. In addition, a computational approach is proposed to develop specific drugs for RA-ILD.
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Affiliation(s)
- Eunji Jeong
- Department of Medicine, College of Medicine, Kyung Hee University, Seoul 02447, Republic of Korea;
| | - Hyunseok Hong
- Yale College, Yale University, New Haven, CT 06520, USA;
- Department of Clinical Pharmacology and Therapeutics, School of Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Yeon-Ah Lee
- Division of Rheumatology, Department of Internal Medicine, Kyung Hee University Hospital, Seoul 02447, Republic of Korea;
| | - Kyoung-Soo Kim
- Department of Medicine, College of Medicine, Kyung Hee University, Seoul 02447, Republic of Korea;
- Department of Clinical Pharmacology and Therapeutics, School of Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
- East-West Bone & Joint Disease Research Institute, Kyung Hee University Hospital at Gangdong, Seoul 05278, Republic of Korea
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Cui T, Huang Z, Luo K, Nie J, Xv Y, Zeng Z, Liao L, Yang X, Zhou H. Identification of Hub Genes and Prediction of Targeted Drugs for Rheumatoid Arthritis and Idiopathic Pulmonary Fibrosis. Biochem Genet 2024:10.1007/s10528-023-10650-z. [PMID: 38334875 DOI: 10.1007/s10528-023-10650-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Accepted: 12/25/2023] [Indexed: 02/10/2024]
Abstract
There is a potential link between rheumatoid arthritis (RA) and idiopathic pulmonary fibrosis (IPF). The aim of this study is to investigate the molecular processes that underlie the development of these two conditions by bioinformatics methods. The gene expression samples for RA (GSE77298) and IPF (GSE24206) were retrieved from the Gene Expression Omnibus (GEO) database. After identifying the overlapping differentially expressed genes (DEGs) for RA and IPF, we conducted functional annotation, protein-protein interaction (PPI) network analysis, and hub gene identification. Finally, we used the hub genes to predict potential medications for the treatment of both disorders. We identified 74 common DEGs for further analysis. Functional analysis demonstrated that cellular components, biological processes, and molecular functions all played a role in the emergence and progression of RA and IPF. Using the cytoHubba plugin, we identified 7 important hub genes, namely COL3A1, SDC1, CCL5, CXCL13, MMP1, THY1, and BDNF. As diagnostic indicators for RA, SDC1, CCL5, CXCL13, MMP1, and THY1 showed favorable values. For IPF, COL3A1, SDC1, CCL5, CXCL13, THY1, and BDNF were favorable diagnostic markers. Furthermore, we predicted 61 Chinese and 69 Western medications using the hub genes. Our research findings demonstrate a shared pathophysiology between RA and IPF, which may provide new insights for more mechanistic research and more effective treatments. These common pathways and hub genes identified in our study offer potential opportunities for developing more targeted therapies that can address both disorders.
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Affiliation(s)
- Ting Cui
- College of Acupuncture-Moxibustion and Tuina, Chengdu University of TCM, Chengdu, 610000, Sichuan, China
| | - Zhican Huang
- College of Acupuncture-Moxibustion and Tuina, Chengdu University of TCM, Chengdu, 610000, Sichuan, China
| | - Kun Luo
- College of Acupuncture-Moxibustion and Tuina, Chengdu University of TCM, Chengdu, 610000, Sichuan, China
| | - Jingwei Nie
- College of Acupuncture-Moxibustion and Tuina, Chengdu University of TCM, Chengdu, 610000, Sichuan, China
| | - Yimei Xv
- College of Acupuncture-Moxibustion and Tuina, Chengdu University of TCM, Chengdu, 610000, Sichuan, China
| | - Zhu Zeng
- College of Acupuncture-Moxibustion and Tuina, Chengdu University of TCM, Chengdu, 610000, Sichuan, China
| | - Linghan Liao
- College of Acupuncture-Moxibustion and Tuina, Chengdu University of TCM, Chengdu, 610000, Sichuan, China
| | - Xin Yang
- College of Acupuncture-Moxibustion and Tuina, Chengdu University of TCM, Chengdu, 610000, Sichuan, China
| | - Haiyan Zhou
- College of Acupuncture-Moxibustion and Tuina, Chengdu University of TCM, Chengdu, 610000, Sichuan, China.
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Dubey S, Woodhead F. Survival differences in rheumatoid arthritis interstitial lung disease and idiopathic pulmonary fibrosis may be explained by delays in presentation: results from multivariate analysis in a monocentric UK study. Rheumatol Int 2024; 44:99-105. [PMID: 38085367 PMCID: PMC10766668 DOI: 10.1007/s00296-023-05505-0] [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: 09/20/2023] [Accepted: 10/31/2023] [Indexed: 01/06/2024]
Abstract
Rheumatoid arthritis-associated interstitial lung disease (RA-ILD) has a better prognosis compared to idiopathic pulmonary fibrosis (IPF). Recent data suggest that antifibrotics are effective in slowing progression across both groups. Hence, we designed this study to investigate the similarities and differences between these groups of patients. This is a retrospective cohort study examining baseline data, progression and outcomes in patients with RA-ILD and IPF prior to antifibrotic use in the Coventry ILD database. Ethics approval was obtained from the University Hospital Coventry and Warwickshire NHS Trust. Statistical analysis was performed using R software and Cox's proportional hazards technique was used for survival analysis. We identified 131 cases, including 49 patients with IPF, 34 patients with RA-ILD and 48 patients with other forms of idiopathic interstitial pneumonia. At baseline, there were significant differences in the groups with RA-ILD patients being significantly younger (65.7 vs 72.4 years), had preserved lung volumes (FVC 95% vs 84.7%) and higher gas transfer (61.5% vs 48.2%) compared to IPF patients. 5-year survival was better for RA-ILD compared to IPF (87.5% vs 40.4%, p = 0.0042). Univariate analysis revealed gas transfer, FVC, age, sex and phenotype (IPF or RA-ILD) were all significant predictors, but multivariate analysis revealed that gas transfer and age were both significantly associated with prognosis, whereas sex, FVC or phenotype were not significant. This study suggests that the difference between RA-ILD and IPF prognosis may be due to demographics and early diagnosis rather than the diseases behaving differently. This has important management implications.
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Affiliation(s)
- Shirish Dubey
- Department of Rheumatology, Oxford University Hospitals NHS FT, Windmill Road, Oxford, OX3 7HE, UK.
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, Nuffield, University of Oxford, Windmill Road, Oxford, OX3 7LD, UK.
| | - Felix Woodhead
- Honorary Consultant Respiratory Physician, Glenfield Hospital, Leicester, LE3 9QP, UK
- Avalyn Pharma, 701 Pike Street, Suite 1500, Seattle, WA, 98101, USA
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Luppi F, Manfredi A, Faverio P, Andersen MB, Bono F, Pagni F, Salvarani C, Bendstrup E, Sebastiani M. The usual Interstitial pneumonia pattern in autoimmune rheumatic diseases. BMC Pulm Med 2023; 23:501. [PMID: 38082233 PMCID: PMC10714466 DOI: 10.1186/s12890-023-02783-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Accepted: 11/23/2023] [Indexed: 12/18/2023] Open
Abstract
Usual Interstitial Pneumonia (UIP) is characterized by progression of lung parenchyma that may be observed in various autoimmune rheumatic diseases (ARDs), including rheumatoid arthritis and connective tissue diseases. From a diagnostic point of view, a UIP pattern related to ARDs may display imaging and pathological features able to distinguish it from that related to IPF, such as the "straight-edge" sign at HRCT and lymphoplasmacytic infiltrates at histologic specimens. Multidisciplinary approach (MDD), involving at least pulmonologist, rheumatologist and radiologist, is fundamental in the differential diagnosis process, but MDD is also required in the evaluation of severity, progression and response to treatment, that is based on the combination of changes in symptoms, pulmonary function trends, and, in selected patients, serial CT evaluation. Differently from IPF, in patients with ARDs both functional evaluation and patient-reported outcomes may be affected by systemic involvement and comorbidities, including musculoskeletal manifestations of disease. Finally, in regards to pharmacological treatment, immunosuppressants have been considered the cornerstone of therapy, despite the lack of solid evidence in most cases; recently, antifibrotic drugs were also proposed for the treatment of progressive fibrosing ILDs other than IPF. In ARD-ILD, the therapeutic choice should balance the need for the control of systemic and lung involvements with the risk of adverse events from multi-morbidities and -therapies. Purpose of this review is to summarize the definition, the radiological and morphological features of the UIP pattern in ARDs, together with risk factors, diagnostic criteria, prognostic evaluation, monitoring and management approaches of the UIP-ARDs.
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Affiliation(s)
- Fabrizio Luppi
- Respiratory Disease, Fondazione IRCCS San Gerardo dei Tintori, Monza, Italy.
- School of Medicine and Surgery, University of Milano-Bicocca, Milan, Italy.
| | - Andreina Manfredi
- Rheumatology Unit, University of Modena and Reggio Emilia, Azienda Ospedaliero-Universitaria Policlinico di Modena, Modena, Italy
| | - Paola Faverio
- Respiratory Disease, Fondazione IRCCS San Gerardo dei Tintori, Monza, Italy
- School of Medicine and Surgery, University of Milano-Bicocca, Milan, Italy
| | - Michael Brun Andersen
- Copenhagen University Hospital Gentofte, Copenhagen, Denmark
- Department of Clinical Medicine, Copenhagen University, Copenhagen, Denmark
| | - Francesca Bono
- Pathology, Fondazione IRCCS San Gerardo dei Tintori, Monza, Italy
| | - Fabio Pagni
- School of Medicine and Surgery, University of Milano-Bicocca, Milan, Italy
- Pathology, Fondazione IRCCS San Gerardo dei Tintori, Monza, Italy
| | - Carlo Salvarani
- Rheumatology Unit, Dipartimento Medicina Interna e Specialità Mediche, Azienda Unità Sanitaria Locale di Reggio Emilia-Istituto di Ricerca e Cura a Carattere Scientifico, Reggio Emilia, Italy
| | - Elisabeth Bendstrup
- Center for Rare Lung Disease, Department of Respiratory Diseases and Allergy, Aarhus University Hospital, and Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Marco Sebastiani
- Rheumatology Unit, University of Modena and Reggio Emilia, Azienda Ospedaliero-Universitaria Policlinico di Modena, Modena, Italy
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Zou M, Hu X, Song W, Gao H, Wu C, Zheng W, Cheng Z. Plasma LTBP2 as a potential biomarker in differential diagnosis of connective tissue disease-associated interstitial lung disease and idiopathic pulmonary fibrosis: a pilot study. Clin Exp Med 2023; 23:4809-4816. [PMID: 37864077 DOI: 10.1007/s10238-023-01214-x] [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: 09/09/2023] [Accepted: 10/02/2023] [Indexed: 10/22/2023]
Abstract
Few biomarkers distinguish connective tissue disease-associated interstitial lung disease (CTD-ILD) from idiopathic pulmonary fibrosis (IPF). Latent transforming growth factor-β binding protein-2 (LTBP2), a secreted extracellular matrix protein, is involved in pulmonary fibrosis. However, the role of LTBP2 in differentially diagnosing CTD-ILD and IPF is unclear. In this study, enzyme-linked immunosorbent assays quantified plasma LTBP2 concentrations in 200 individuals (35 healthy controls, 42 CTD patients without ILD, 89 CTD-ILD patients, and 34 IPF patients). CTD-ILD and IPF were further classified based on chest imaging pattern and pulmonary function test results. Plasma LTBP2 levels were significantly elevated in the IPF group compared with the CTD-ILD group. ROC analysis further suggested the possible value of LTBP2 in differentially diagnosing CTD-ILD and IPF. Additionally, CTD-ILD patients with progressive lung fibrosis had higher plasma LTBP2 concentrations than those who did not. Similarly, patients with IPF developing acute exacerbation showed higher plasma LTBP2 levels than those with stable IPF. This is the first study showing that LTBP2 was closely associated with the usual interstitial pneumonia (UIP) pattern in rheumatoid arthritis-associated ILD (RA-ILD). Moreover, the optimal cutoff values of LTBP2 for distinguishing IPF from CTD-UIP/RA-UIP were 33.75 and 38.33 ng/mL with an AUC of 0.682 and 0.681, respectively. Our findings suggest that plasma LTBP2 levels may differentially diagnose CTD-ILD and IPF, and assess their fibrotic activity. Additionally, clinical LTBP2 evaluation may be a great aid to identifying the presence of the UIP pattern in RA-ILD and to discriminating IPF from CTD-UIP, particularly RA-UIP.
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Affiliation(s)
- Menglin Zou
- Department of Respiratory and Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China
- Fourth Ward of Medical Care Center, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou, China
| | - Xingxing Hu
- Department of Respiratory and Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Weiwei Song
- Department of Respiratory and Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Han Gao
- Department of Respiratory and Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Changrong Wu
- Department of Respiratory and Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China.
| | - Weishuai Zheng
- Department of Respiratory and Critical Care Medicine, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou, China.
| | - Zhenshun Cheng
- Department of Respiratory and Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China.
- Wuhan Research Center for Infectious Diseases and Cancer, Chinese Academy of Medical Sciences, Wuhan, China.
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Juge PA, Wemeau L, Ottaviani S, Desjeux G, Zhuo J, Vannier-Moreau V, Flipo RM, Crestani B, Dieudé P. Increased mortality in patients with RA-associated interstitial lung disease: data from a French administrative healthcare database. RMD Open 2023; 9:e003491. [PMID: 38053461 PMCID: PMC10693852 DOI: 10.1136/rmdopen-2023-003491] [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: 07/14/2023] [Accepted: 11/15/2023] [Indexed: 12/07/2023] Open
Abstract
OBJECTIVES Interstitial lung disease (ILD) is a severe extra-articular manifestation of rheumatoid arthritis (RA). The objectives of this study were to estimate mortality rate in patients with RA-ILD and identify factors affecting mortality. METHODS Data from a French national claims database (Système National des Données de Santé) from 2013 to 2018 were analysed. Adults with an RA diagnosis (International Classification of Diseases (ICD)-10 codes M05, M06.0, M06.8 and M06.9) were included. ILD diagnosis was defined with ICD-10 code J84. Mortality rates were compared between patients with RA with and without ILD, using Cox proportional hazards regression, after matching 1:1 for age, sex, age at RA-ILD onset and RA duration. RESULTS Among 173 132 patients with RA, 4330 (3%) also had ILD (RA-ILD). After matching, RA-ILD was associated with an increased mortality rate (HR 3.4, 95% CI 3.1 to 3.9). The HR for mortality was greater for: patients aged <75 years (HR 4.8, 95% CI 3.9 to 5.9) versus ≥75 years (HR 3.0, 95% CI 2.6 to 3.5); patients with ILD onset occurring before RA onset (HR 8.4, 95% CI 5.5 to 13.0) versus ILD onset occurring after RA onset (HR 2.9, 95% CI 2.6 to 3.3); and men (HR 5.2, 95% CI 4.4 to 6.2) versus women (HR 3.6, 95% CI 3.0 to 4.2). CONCLUSION In this nationwide cohort study, RA-ILD was associated with increased mortality rate (vs in patients with RA without ILD), notably for those aged <75 years, those whose ILD preceded RA onset and men.
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Affiliation(s)
- Pierre-Antoine Juge
- INSERM UMR 1152, Université Paris Cité, Paris, Île-de-France, France
- Service de Rhumatologie, Hôpital Bichat - Claude-Bernard, AP-HP, Paris, Île-de-France, France
| | - Lidwine Wemeau
- Service de Pneumologie et Immuno-Allergologie, CHRU de Lille, Lille, Hauts-de-France, France
| | | | - Guillaume Desjeux
- Real World Digital Contract Research Company, Sanoïa, Gémenos, France
| | - Joe Zhuo
- Worldwide Health Economics and Outcomes Research, Bristol Myers Squibb, Princeton, New Jersey, USA
| | | | - René-Marc Flipo
- Service de Rhumatologie, CHRU de Lille, Lille, Hauts-de-France, France
| | - Bruno Crestani
- Service de pneumologie A, Hôpital Bichat - Claude Bernard, AP-HP, Paris, Ile de France, France
| | - Philippe Dieudé
- INSERM UMR 1152, Université Paris Cité, Paris, Île-de-France, France
- Service de Rhumatologie, Hôpital Bichat - Claude-Bernard, AP-HP, Paris, Île-de-France, France
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Yu R, Liu X, Deng X, Li S, Wang Y, Zhang Y, Ke D, Yan R, Wang Q, Tian X, Li M, Zeng X, Hu C. Serum CHI3L1 as a biomarker of interstitial lung disease in rheumatoid arthritis. Front Immunol 2023; 14:1211790. [PMID: 37662936 PMCID: PMC10469784 DOI: 10.3389/fimmu.2023.1211790] [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: 04/25/2023] [Accepted: 07/31/2023] [Indexed: 09/05/2023] Open
Abstract
Background Interstitial lung disease (ILD) is a relatively prevalent extra-articular manifestation of rheumatoid arthritis (RA) and contributes to significant morbidity and mortality. This study aimed to analyze the association between chitinase-3 like-protein-1(CHI3L1) and the presence of RA-ILD. Methods A total of 239 RA patients fulfilling the American Rheumatism Association (ACR) 1987 revised criteria were enrolled and subclassified as RA-ILD and RA-nILD based on the results of high-resolution computed tomography scans (HRCT) of the chest. The disease activity of RA was assessed by Disease Activity Score for 28 joints (DAS28) and categorized as high, moderate, low, and remission. Chemiluminescence immunoassays were applied to determine the serum levels of CHI3L1. Univariate analysis was performed and the receiver operating characteristics (ROC) curves were plotted to evaluate the correlation between RA-ILD and CHI3L1. Results Among the eligible RA patients studied, 60 (25.1%) patients were diagnosed with RA-ILD. Compared with RA-nILD, RA patients with ILD had significantly higher median age (median [IQR], 68.00 [62.00-71.75] vs 53.00 [40.00-63.00], p<0.001) and a higher proportion of males (21 (35.0%) vs 30 (16.8%), p=0.003). Notably, differences in DAS28 scores between the two groups were not observed. The serum level of CHI3L1 was significantly higher in RA-ILD patients (median [IQR], 69.69 [44.51-128.66] ng/ml vs 32.19 [21.63-56.99] ng/ml, p<0.001). Furthermore, the areas under the curve (AUC) of CHI3L1 attained 0.74 (95% confidence interval [CI], 0.68-0.81, p<0.001) in terms of identifying patients with RA-ILD from those without ILD. Similar trends were seen across the spectrum of disease activity based on DAS28-ESR. Conclusion Our findings of elevated serum CHI3L1 levels in RA-ILD patients suggest its possible role as a biomarker to detect RA-ILD noninvasively.
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Affiliation(s)
- Rui Yu
- Department of Rheumatology, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Key Laboratory of Rheumatology & Clinical Immunology, Ministry of Education, Beijing, China
- Eight-year Medical Doctor Program, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Xiaomin Liu
- Department of Rheumatology, Shunyi District Hospital, Beijing, China
| | - Xiaoyue Deng
- Department of Rheumatology, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Key Laboratory of Rheumatology & Clinical Immunology, Ministry of Education, Beijing, China
- Medical Science Research Center (MRC), Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Siting Li
- Department of Rheumatology, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Key Laboratory of Rheumatology & Clinical Immunology, Ministry of Education, Beijing, China
| | - Yifei Wang
- Department of Rheumatology, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Key Laboratory of Rheumatology & Clinical Immunology, Ministry of Education, Beijing, China
- Eight-year Medical Doctor Program, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Yan Zhang
- Department of Rheumatology, Shunyi District Hospital, Beijing, China
| | - Dan Ke
- Department of Rheumatology, Shunyi District Hospital, Beijing, China
| | - Rui Yan
- Department of Rheumatology, Shunyi District Hospital, Beijing, China
| | - Qian Wang
- Department of Rheumatology, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Key Laboratory of Rheumatology & Clinical Immunology, Ministry of Education, Beijing, China
| | - Xinping Tian
- Department of Rheumatology, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Key Laboratory of Rheumatology & Clinical Immunology, Ministry of Education, Beijing, China
| | - Mengtao Li
- Department of Rheumatology, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Key Laboratory of Rheumatology & Clinical Immunology, Ministry of Education, Beijing, China
| | - Xiaofeng Zeng
- Department of Rheumatology, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Key Laboratory of Rheumatology & Clinical Immunology, Ministry of Education, Beijing, China
| | - Chaojun Hu
- Department of Rheumatology, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Key Laboratory of Rheumatology & Clinical Immunology, Ministry of Education, Beijing, China
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10
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Qiu Y, Liu C, Shi Y, Hao N, Tan W, Wang F. Integrating bioinformatic resources to identify characteristics of rheumatoid arthritis-related usual interstitial pneumonia. BMC Genomics 2023; 24:450. [PMID: 37563706 PMCID: PMC10413595 DOI: 10.1186/s12864-023-09548-2] [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: 04/20/2023] [Accepted: 07/31/2023] [Indexed: 08/12/2023] Open
Abstract
BACKGROUND Rheumatoid arthritis (RA) is often accompanied by a common extra-articular manifestation known as RA-related usual interstitial pneumonia (RA-UIP), which is associated with a poor prognosis. However, the mechanism remains unclear. To identify potential mechanisms, we conducted bioinformatics analysis based on high-throughput sequencing of the Gene Expression Omnibus (GEO) database. RESULTS Weighted gene co-expression network analysis (WGCNA) analysis identified 2 RA-positive related modules and 4 idiopathic pulmonary fibrosis (IPF)-positive related modules. A total of 553 overlapped differentially expressed genes (DEG) were obtained, of which 144 in the above modules were further analyzed. The biological process of "oxidative phosphorylation" was found to be the most relevant with both RA and IPF. Additionally, 498 up-regulated genes in lung tissues of RA-UIP were screened out and enriched by 7 clusters, of which 3 were closely related to immune regulation. The analysis of immune infiltration showed a characteristic distribution of peripheral immune cells in RA-UIP, compared with IPF-UIP in lung tissues. CONCLUSIONS These results describe the complex molecular and functional landscape of RA-UIP, which will help illustrate the molecular pathological mechanism of RA-UIP and identify new biomarkers and therapeutic targets for RA-UIP in the future.
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Affiliation(s)
- Yulu Qiu
- Department of Rheumatology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
| | - Chang Liu
- Department of Rheumatology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
| | - Yumeng Shi
- Department of Rheumatology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
| | - Nannan Hao
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Wenfeng Tan
- Department of Rheumatology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China.
| | - Fang Wang
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China.
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11
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Ba X, Wang H, Huang Y, Yan J, Han L, Lin W, Shen P, Huang Y, Yang S, Qin K, Tu S, Chen Z. Simiao pill attenuates collagen-induced arthritis and bleomycin-induced pulmonary fibrosis in mice by suppressing the JAK2/STAT3 and TGF-β/Smad2/3 signalling pathway. JOURNAL OF ETHNOPHARMACOLOGY 2023; 309:116274. [PMID: 36841380 DOI: 10.1016/j.jep.2023.116274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Revised: 02/03/2023] [Accepted: 02/12/2023] [Indexed: 06/18/2023]
Abstract
ETHNOPHAMACOLOGICAL RELEVANCE Simiao Pill (SM) as a classic prescription of traditional Chinese medicine treatment of damp-heat arthralgia, the earliest from 'Cheng Fan Bian Du ', written by the Qing Dynasty doctor Zhang Bingcheng. Previous studies have shown that SM has obvious curative effect on rheumatoid arthritis, which provides a basis for the application of SM in rheumatoid arthritis related complications. AIM OF THE STUDY Interstitial lung disease (ILD), as the most severe complication of rheumatoid arthritis (RA), lacks effective clinical treatments and a corresponding animal model. Simiao pill (SM) is a traditional Chinese medicine prescription extensively used as a complementary and alternative treatment for RA. However, the effect and mechanism of SM on RA-ILD have not yet been reported. This study aimed to investigate an appropriate animal model that can simulate RA-ILD, and the efficacy, safety, and mechanism of SM on RA-ILD. METHODS Collagen-induced arthritis (CIA) and bleomycin-induced pulmonary fibrosis model were combined to construct the CIA-BLM model. After the intervention of SM, the protective effects of SM on RA-ILD were determined by detecting the CIA mouse arthritis index (AI), Spleen index, and the extent of pulmonary fibrosis. The joint inflammation and pulmonary fibrosis were detected by immunohistochemistry, H&E staining, safranin- O fast green Sirius red staining, trap staining, and Masson staining. Finally, the mechanism was verified by Western blot and immunohistochemistry. RESULTS Our work showed that SM significantly reduced joint swelling, arthritis index, pulmonary fibrosis score, and spleen index in CIA mice. The pathological examination results indicated Si-Miao Pill suppressed inflammation, pulmonary fibrosis, bone erosion, and cartilage degradation of the ankle joint. Besides, SM up-regulated expressions of E-cadherin, whereas down-regulated expressions of α-SMA. Further studies confirmed that SM regulated JAK2/STAT3 and TGF-β/SMAD2/3. CONCLUSION SM can not only effectively improve joint inflammation by JAK2/STAT3 Pathway but also inhibit pulmonary fibrosis by TGF-β/SMAD2/3. The fibrosis induced by CIA-BLM model was more stable and obvious than that induced by CIA model alone.
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Affiliation(s)
- Xin Ba
- Institute of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hui Wang
- Center for Rehabilitation Medicine, Rehabilitation & Sports Medicine Research Institute of Zhejiang Province, Department of Rehabilitation Medicine, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Yao Huang
- Department of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - JiaHui Yan
- Institute of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Liang Han
- Institute of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - WeiJi Lin
- Institute of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Pan Shen
- Institute of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ying Huang
- Department of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - SiSi Yang
- Division of Geriatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Kai Qin
- Department of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - ShengHao Tu
- Institute of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Department of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhe Chen
- Institute of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Department of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
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12
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Matson SM, Demoruelle MK. Connective Tissue Disease Associated Interstitial Lung Disease. Immunol Allergy Clin North Am 2023; 43:229-244. [PMID: 37055086 DOI: 10.1016/j.iac.2023.01.005] [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] [Indexed: 03/06/2023]
Abstract
Connective tissue disease associated interstitial lung disease (CTD-ILD) is a heterogenous collection of conditions with a diverse spectrum of interstitial lung disease (ILD) manifestations. Currently, clinical practice of lung-directed immunosuppression in CTD-ILD is supported by several randomized, placebo-controlled trials (RCTs) in patients with scleroderma and several observational, retrospective studies in other autoimmune conditions. However, given the harm of immunosuppression in idiopathic pulmonary fibrosis, there is an urgent need for RCTs of immunosuppression and antifibrotic agents in fibrotic CTD-ILD populations as well as the study of intervention in patients with subclinical CTD-ILD.
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Affiliation(s)
- Scott M Matson
- Division of Pulmonary, Critical Care and Sleep Medicine, University of Kansas School of Medicine, 3901 Rainbow boulevard, Mailstop 3007, Kansas City, KS 66160, USA
| | - M Kristen Demoruelle
- Division of Rheumatology, University of Colorado School of Medicine, 1775 Aurora Court, Mail Stop B-115, Aurora, CO 80045, USA.
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13
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Survival of adults with rheumatoid arthritis associated interstitial lung disease - A systematic review and meta-analysis. Semin Arthritis Rheum 2023; 60:152187. [PMID: 36933302 DOI: 10.1016/j.semarthrit.2023.152187] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2022] [Revised: 01/16/2023] [Accepted: 03/02/2023] [Indexed: 03/11/2023]
Abstract
BACKGROUND Rheumatoid arthritis associated interstitial lung disease (RA-ILD) is associated with high levels of morbidity and mortality. The primary aim of this systematic review was to determine the duration of survival, from time of diagnosis of RA-ILD. METHODS Medline (Ovid), Embase (OVID), CINAHL (EBSCO), PubMed, and the Cochrane Library were searched for studies that reported duration of survival from time of diagnosis of RA-ILD. Risk of bias of included studies was assessed based upon 4 domains of the Quality In Prognosis Studies tool. Results for median survival were presented by tabulation and discussed qualitatively. Meta-analysis of cumulative mortality at 1 year, >1y to ≤3 years, >3 years to ≤5 years, and >5 years to≤ 10 years was undertaken, for total RA-ILD population, and according to ILD pattern. RESULTS 78 studies were included. Median survival for the total RA-ILD population ranged from 2 to 14 years. Pooled estimates for cumulative percentage mortality up to 1 year were 9.0% (95% CI 6.1, 12.5, I2 88.9%), >1 to ≤3 years 21.4% (17.3, 25.9, I2 85.7%), >3 to ≤ 5 years 30.2% (24.8, 35.9, I2 87.7%), and > 5 to ≤ 10 years 49.1% (40.6, 57.7 I2 85.0%). Heterogeneity was high. Only 15 studies were rated as low risk of bias in all 4 domains assessed. CONCLUSION This review summarises the high mortality of RA-ILD, however the strength of conclusions that can be made is limited by the heterogeneity of the available studies, due to methodological and clinical factors. Further studies are needed to better understand the natural history of this condition.
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14
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Hutchinson D. Predicting rheumatoid arthritis-associated interstitial lung disease: filling the void. THE LANCET. RHEUMATOLOGY 2023; 5:e61-e63. [PMID: 38251539 DOI: 10.1016/s2665-9913(23)00008-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Accepted: 01/03/2023] [Indexed: 01/26/2023]
Affiliation(s)
- David Hutchinson
- Rheumatology Department, Royal Cornwall Hospital, Truro TR1 3LQ, UK.
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15
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Zheng W, Hu X, Zou M, Hu N, Song W, Wang R, Liu Y, Hou Q, Liu Y, Chen X, Cheng Z. Plasma IL-36α and IL-36γ as Potential Biomarkers in Interstitial Lung Disease Associated with Rheumatoid Arthritis: a Pilot Study in the Chinese Population. Inflammation 2023; 46:285-296. [PMID: 36044099 DOI: 10.1007/s10753-022-01733-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 08/21/2022] [Accepted: 08/22/2022] [Indexed: 11/30/2022]
Abstract
Interstitial lung disease (ILD) is a frequent extra-articular manifestation of rheumatoid arthritis (RA) and increases mortality in patients with RA. Early identification of ILD, especially the usual interstitial pneumonia (UIP) pattern with a poor prognosis, is important for guiding treatment of RA-ILD and preventing damage resulting from a delay in diagnosis. Interleukin-36 (IL-36) cytokines are involved in connective tissue diseases. However, IL-36 expression in RA-ILD is unknown. In this study, the clinical relevance of plasma IL-36 cytokines was evaluated in 39 patients with RA-ILD and three other groups (30 healthy controls [HCs], 35 RA patients without ILD, and 27 patients with idiopathic pulmonary fibrosis [IPF]) in the Chinese population. Plasma IL-36α and IL-36γ concentrations were elevated in patients with RA-ILD compared with those in HCs and patients with RA. RA-ILD patients with UIP pattern had higher plasma IL-36γ concentrations than those with RA-ILD without UIP, but these were lower than those in patients with IPF. Receiver operating curve analysis suggested that IL-36α and IL-36γ were potential biomarkers for identifying ILD in patients with RA. Additionally, the optimal cutoff value of IL-36γ for distinguishing RA-ILD with the UIP pattern from RA-ILD without UIP was 555.40 pg/mL and that for distinguishing RA-ILD from IPF was 655.10 pg/mL. No significant difference in plasma IL-36β or IL-36Ra concentrations was found between patients with RA-ILD and the three other groups. We also found that the lungs originating from different types of patients with PF, including RA-ILD and IPF, and those from mice following bleomycin-induced PF were characterized by increased IL-36γ expression. Our findings suggest that using IL-36 cytokines to identify patients with RA for further ILD workups may provide additional diagnostic value to the current clinically available assays. Moreover, IL-36γ may help to identify the presence of the UIP pattern in patients with RA-ILD and to discriminate RA-ILD from IPF.
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Affiliation(s)
- Weishuai Zheng
- Department of Respiratory and Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Xingxing Hu
- Department of Respiratory and Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Menglin Zou
- Department of Respiratory and Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Nie Hu
- Department of Rheumatology and Immunology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Weiwei Song
- Department of Respiratory and Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Rui Wang
- Department of Respiratory and Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Ying Liu
- Department of Respiratory and Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Qinhui Hou
- Department of Respiratory and Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Yuan Liu
- Department of Respiratory and Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China.
| | - Xiaoqi Chen
- Department of Rheumatology and Immunology, Zhongnan Hospital of Wuhan University, Wuhan, China.
| | - Zhenshun Cheng
- Department of Respiratory and Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China.
- Wuhan Research Center for Infectious Diseases and Cancer, Chinese Academy of Medical Sciences, Wuhan, China.
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16
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Denis A, Henket M, Ernst M, Maes N, Thys M, Regnier C, Malaise O, Frix AN, Gester F, Desir C, Meunier P, Louis R, Malaise M, Guiot J. Progressive fibrosing interstitial lung disease in rheumatoid arthritis: A retrospective study. Front Med (Lausanne) 2022; 9:1024298. [PMID: 36530900 PMCID: PMC9748274 DOI: 10.3389/fmed.2022.1024298] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2022] [Accepted: 11/08/2022] [Indexed: 11/26/2023] Open
Abstract
BACKGROUND AND OBJECTIVE Rheumatoid arthritis associated-interstitial lung disease (RA-ILD) is the most common pulmonary manifestation of rheumatoid arthritis (RA) and an important cause of mortality. In patients suffering from interstitial lung diseases (ILD) from different etiologies (including RA-ILD), a significant proportion is exhibiting a fibrotic progression despite immunosuppressive therapies, defined as progressive fibrosing interstitial lung disease (PF-ILD). Here, we report the frequency of RA-ILD and PF-ILD in all RA patients' cohort at University Hospital of Liège and compare their characteristics and outcomes. METHODS Patients were retrospectively recruited from 2010 to 2020. PF-ILD was defined based on functional, clinical and/or iconographic progression criteria within 24 months despite specific anti-RA treatment. RESULTS Out of 1,500 RA patients, about one third had high-resolution computed tomography (HRCT) performed, 89 showed RA-ILD and 48 PF-ILD. RA-ILD patients were significantly older than other RA patients (71 old of median age vs. 65, p < 0.0001), with a greater proportion of men (46.1 vs. 27.7%, p < 0.0001) and of smoking history. Non-specific interstitial pneumonia pattern was more frequent than usual interstitial pneumonia among RA-ILD (60.7 vs. 27.0%) and PF-ILD groups (60.4 vs. 31.2%). The risk of death was 2 times higher in RA-ILD patients [hazard ratio 2.03 (95% confidence interval 1.15-3.57), p < 0.01] compared to RA. CONCLUSION We identified a prevalence of PF-ILD of 3% in a general RA population. The PF-ILD cohort did not seem to be different in terms of demographic characteristics and mortality compared to RA-ILD patients who did not exhibit the progressive phenotype yet.
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Affiliation(s)
- Anna Denis
- Department of Pneumology, CHU of Liège, Liège, Belgium
| | | | - Marie Ernst
- Department of Biostatistics and Medico-Economic, CHU of Liège, Liège, Belgium
| | - Nathalie Maes
- Department of Biostatistics and Medico-Economic, CHU of Liège, Liège, Belgium
| | - Marie Thys
- Department of Biostatistics and Medico-Economic, CHU of Liège, Liège, Belgium
| | - Céline Regnier
- Department of Rheumatology, CHU of Liège, Liège, Belgium
| | | | | | - Fanny Gester
- Department of Pneumology, CHU of Liège, Liège, Belgium
| | - Colin Desir
- Department of Radiology, CHU of Liège, Liège, Belgium
| | - Paul Meunier
- Department of Radiology, CHU of Liège, Liège, Belgium
| | - Renaud Louis
- Department of Pneumology, CHU of Liège, Liège, Belgium
| | - Michel Malaise
- Department of Rheumatology, CHU of Liège, Liège, Belgium
| | - Julien Guiot
- Department of Pneumology, CHU of Liège, Liège, Belgium
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17
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Hambly N, Farooqi MM, Dvorkin-Gheva A, Donohoe K, Garlick K, Scallan C, Chong SG, MacIsaac S, Assayag D, Johannson KA, Fell CD, Marcoux V, Manganas H, Morisset J, Comes A, Fisher JH, Shapera S, Gershon AS, To T, Wong AW, Sadatsafavi M, Wilcox PG, Halayko AJ, Khalil N, Cox G, Richeldi L, Ryerson CJ, Kolb M. Prevalence and characteristics of progressive fibrosing interstitial lung disease in a prospective registry. Eur Respir J 2022; 60:13993003.02571-2021. [PMID: 35273032 DOI: 10.1183/13993003.02571-2021] [Citation(s) in RCA: 58] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Accepted: 02/17/2022] [Indexed: 01/29/2023]
Abstract
BACKGROUND Progressive fibrosing interstitial lung disease (PF-ILD) is characterised by progressive physiological, symptomatic and/or radiographic worsening. The real-world prevalence and characteristics of PF-ILD remain uncertain. METHODS Patients were enrolled from the Canadian Registry for Pulmonary Fibrosis between 2015 and 2020. PF-ILD was defined as a relative forced vital capacity (FVC) decline ≥10%, death, lung transplantation or any two of: relative FVC decline ≥5% and <10%, worsening respiratory symptoms or worsening fibrosis on computed tomography of the chest, all within 24 months of diagnosis. Time-to-event analysis compared progression between key diagnostic subgroups. Characteristics associated with progression were determined by multivariable regression. RESULTS Of 2746 patients with fibrotic ILD (mean±sd age 65±12 years; 51% female), 1376 (50%) met PF-ILD criteria in the first 24 months of follow-up. PF-ILD occurred in 427 (59%) patients with idiopathic pulmonary fibrosis (IPF), 125 (58%) with fibrotic hypersensitivity pneumonitis (HP), 281 (51%) with unclassifiable ILD (U-ILD) and 402 (45%) with connective tissue disease-associated ILD (CTD-ILD). Compared with IPF, time to progression was similar in patients with HP (hazard ratio (HR) 0.96, 95% CI 0.79-1.17), but was delayed in patients with U-ILD (HR 0.82, 95% CI 0.71-0.96) and CTD-ILD (HR 0.65, 95% CI 0.56-0.74). Background treatment varied across diagnostic subtypes, with 66% of IPF patients receiving antifibrotic therapy, while immunomodulatory therapy was utilised in 49%, 61% and 37% of patients with CHP, CTD-ILD and U-ILD, respectively. Increasing age, male sex, gastro-oesophageal reflux disease and lower baseline pulmonary function were independently associated with progression. CONCLUSIONS Progression is common in patients with fibrotic ILD, and is similarly prevalent in HP and IPF. Routinely collected variables help identify patients at risk for progression and may guide therapeutic strategies.
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Affiliation(s)
- Nathan Hambly
- Dept of Medicine, McMaster University, Hamilton, ON, Canada.,Denotes equal contribution
| | - M Malik Farooqi
- Dept of Medicine, McMaster University, Hamilton, ON, Canada.,Denotes equal contribution
| | - Anna Dvorkin-Gheva
- McMaster Immunology Research Centre, M.G. DeGroote Institute for Infectious Disease Research, and Dept of Pathology and Molecular Medicine, McMaster University, Hamilton, ON, Canada
| | - Kathryn Donohoe
- Centre for Heart Lung Innovation, St Paul's Hospital, Vancouver, BC, Canada
| | | | - Ciaran Scallan
- Dept of Medicine, McMaster University, Hamilton, ON, Canada
| | - Sy Giin Chong
- Dept of Medicine, McMaster University, Hamilton, ON, Canada
| | - Sarah MacIsaac
- Dept of Medicine, McMaster University, Hamilton, ON, Canada
| | | | | | - Charlene D Fell
- Dept of Medicine, University of Calgary, Calgary, AB, Canada
| | - Veronica Marcoux
- Dept of Medicine, University of Saskatchewan, Saskatoon, SK, Canada
| | - Helene Manganas
- Dépt de Médecine, Centre Hospitalier de l'Université de Montréal, Montreal, QC, Canada
| | - Julie Morisset
- Dépt de Médecine, Centre Hospitalier de l'Université de Montréal, Montreal, QC, Canada
| | - Alessia Comes
- Fondazione Policlinico Universitario A. Gemelli IRCCS, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Jolene H Fisher
- Dept of Medicine, University of Toronto, Toronto, ON, Canada
| | - Shane Shapera
- Dept of Medicine, University of Toronto, Toronto, ON, Canada
| | | | - Teresa To
- Dept of Medicine, University of Toronto, Toronto, ON, Canada
| | - Alyson W Wong
- Centre for Heart Lung Innovation, St Paul's Hospital, Vancouver, BC, Canada.,Dept of Medicine, University of British Columbia, Vancouver, BC, Canada
| | | | - Pierce G Wilcox
- Dept of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Andrew J Halayko
- Dept of Internal Medicine, University of Manitoba, Winnipeg, MB, Canada
| | - Nasreen Khalil
- Dept of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Gerard Cox
- Dept of Medicine, McMaster University, Hamilton, ON, Canada
| | - Luca Richeldi
- Fondazione Policlinico Universitario A. Gemelli IRCCS, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Christopher J Ryerson
- Centre for Heart Lung Innovation, St Paul's Hospital, Vancouver, BC, Canada.,Dept of Medicine, University of British Columbia, Vancouver, BC, Canada.,Denotes equal contribution
| | - Martin Kolb
- Dept of Medicine, McMaster University, Hamilton, ON, Canada .,Denotes equal contribution
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18
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Cottin V, Martinez FJ, Smith V, Walsh SLF. Multidisciplinary teams in the clinical care of fibrotic interstitial lung disease: current perspectives. Eur Respir Rev 2022; 31:220003. [PMID: 38743511 DOI: 10.1183/16000617.0003-2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Accepted: 07/04/2022] [Indexed: 11/05/2022] Open
Abstract
Multidisciplinary team (MDT) meetings, involving the integrated collaboration of healthcare professionals, are increasingly used in clinical practice to inform the diagnosis and treatment of interstitial lung diseases (ILDs). Over time, the assessment of patients with ILD has transitioned from discussions among clinicians, radiologists and pathologists to the inclusion of a broader range of clinical data and specialist expertise. Studies have shown that a multidisciplinary approach can have many benefits for the clinical care of patients with ILD by improving the diagnostic confidence for different ILDs and guiding treatment decisions. The utility of MDT discussions for diagnosis, monitoring disease progression and management decisions, will need to be considered based on how it is best positioned in the diagnostic and therapeutic process, as well as the practicality and challenges of its use. There are also uncertainties and heterogeneity concerning the optimal practices of MDT meetings in ILD care. In this review, we describe recent developments refining the approach to MDTs in clinical practice, including who should be involved in the MDTs, when it is most needed, their use in patient management, challenges in their implementation, and ongoing controversies in the field that need further research.
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Affiliation(s)
- Vincent Cottin
- Louis Pradel Hospital, Reference Centre for Rare Pulmonary Diseases, Hospices Civils de Lyon, Lyon, France
- Claude Bernard University Lyon 1, UMR754, INRAE, Member of OrphaLung, RespiFil, Radico-ILD and ERN-LUNG, Lyon, France
| | | | - Vanessa Smith
- Dept of Rheumatology, Ghent University Hospital Dept of Internal Medicine, Ghent, Belgium
| | - Simon L F Walsh
- National Heart and Lung Institute, Imperial College London, London, UK
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19
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Florescu A, Gherghina FL, Mușetescu AE, Pădureanu V, Roșu A, Florescu MM, Criveanu C, Florescu LM, Bobircă A. Novel Biomarkers, Diagnostic and Therapeutic Approach in Rheumatoid Arthritis Interstitial Lung Disease-A Narrative Review. Biomedicines 2022; 10:biomedicines10061367. [PMID: 35740390 PMCID: PMC9219939 DOI: 10.3390/biomedicines10061367] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 06/01/2022] [Accepted: 06/07/2022] [Indexed: 12/25/2022] Open
Abstract
Rheumatoid arthritis (RA) is considered a systemic inflammatory disease marked by polyarthritis which affects the joints symmetrically, leading to progressive damage of the bone structure and eventually joint deformity. Lung involvement is the most prevalent extra-articular feature of RA, affecting 10-60% of patients with this disease. In this review, we aim to discuss the patterns of RA interstitial lung disease (ILD), the molecular mechanisms involved in the pathogenesis of ILD in RA, and also the therapeutic challenges in this particular extra-articular manifestation. The pathophysiology of RA-ILD has been linked to biomarkers such as anti-citrullinated protein antibodies (ACPAs), MUC5B mutation, Krebs von den Lungen 6 (KL-6), and other environmental factors such as smoking. Patients at the highest risk for RA-ILD and those most likely to advance will be identified using biomarkers. The hope is that finding biomarkers with good performance characteristics would help researchers better understand the pathophysiology of RA-ILD and, in turn, lead to the development of tailored therapeutics for this severe RA manifestation.
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Affiliation(s)
- Alesandra Florescu
- Department of Rheumatology, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania; (A.F.); (A.R.); (C.C.)
| | - Florin Liviu Gherghina
- Department of Physical Medicine and Rehabilitation, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania;
| | - Anca Emanuela Mușetescu
- Department of Rheumatology, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania; (A.F.); (A.R.); (C.C.)
- Correspondence: (A.E.M.); (V.P.)
| | - Vlad Pădureanu
- Department of Internal Medicine, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
- Correspondence: (A.E.M.); (V.P.)
| | - Anca Roșu
- Department of Rheumatology, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania; (A.F.); (A.R.); (C.C.)
| | - Mirela Marinela Florescu
- Department of Pathology, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania;
| | - Cristina Criveanu
- Department of Rheumatology, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania; (A.F.); (A.R.); (C.C.)
| | - Lucian-Mihai Florescu
- Department of Radiology and Medical Imaging, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania;
| | - Anca Bobircă
- Department of Rheumatology and Internal Medicine, Carol Davila University of Medicine and Pharmacy, 050474 Bucharest, Romania;
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Chalmers JD, Kolb M. The evolution of the European Respiratory Journal: adapting in an era of change. Eur Respir J 2022; 59:59/1/2200037. [PMID: 35086842 DOI: 10.1183/13993003.00037-2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Accepted: 01/08/2022] [Indexed: 11/05/2022]
Affiliation(s)
- James D Chalmers
- Division of Molecular and Clinical Medicine, University of Dundee, Ninewells Hospital and Medical School, Dundee, UK
| | - Martin Kolb
- Dept of Respiratory Medicine, Pathology and Molecular Medicine, McMaster University and St Joseph's Healthcare, Hamilton, ON, Canada
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21
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Dai Y, Sheng J, He S, Wu Q, Wang Y, Su L. Dehydroevodiamine suppresses inflammatory responses in adjuvant-induced arthritis rats and human fibroblast-like synoviocytes. Bioengineered 2022; 13:268-279. [PMID: 34719315 PMCID: PMC8805850 DOI: 10.1080/21655979.2021.1999554] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Accepted: 10/23/2021] [Indexed: 12/30/2022] Open
Abstract
Dehydroevodiamine (DHE) is an effective natural active substance extracted from Euodiae Fructus, which is a widely used herbal drug in traditional Chinese medicine. The focus of this study was to test the possibility of using DHE in the treatment of rheumatoid arthritis (RA) diseases. A rat model of adjuvant-induced arthritis (AIA) was generated using Complete Freund's Adjuvant (CFA). Body weight changes, arthritis scores, ankle pathology, tumor necrosis factor-alpha (TNF-α), interleukin-1β(IL-1β), interleukin-6 (IL-6), and interleukin-17 (IL-17) secretion, as well as matrix metalloproteinase (MMP) expression in joint tissue, were measured as indicators of viability of DHE medicated AIA rats. Human fibroblast-like synoviocytes (MH7A cells) were connected to check these impacts. The results confirmed that DHE administration had an excellent therapeutic impact on the AIA rat model, substantially relieving joint swelling, inhibiting synovial pannus hyperplasia, and decreasing joint scores. In addition, the serum enzyme-linked immunosorbent assay (ELISA) showed that DHE treatment reduced the expression of pro-inflammatory factors in AIA rats. The immunohistochemical results showed that DHE treatment could reduce the synthesis of MMPs such as matrix metalloproteinase-1(MMP-1) and matrix metalloproteinase-3 (MMP-3) in the ankle tissue of AIA rats. In vitro, DHE inhibited cell proliferation, mRNA transcription, protein synthesis of proinflammatory factors such as IL-1βand IL-6, and matrix metalloproteinases such as MMP-1 and MMP-3. Furthermore, DHE inhibited the phosphorylation levels of p38, JNK, and ERK proteins in TNF-α-treated MH7A cells.This work assessed the effect of DHE in AIA rats and revealed its mechanism in vitro.
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Affiliation(s)
- Yufang Dai
- Department of Rheumatology and Immunology, Minda Hospital of Hubei Minzu University, Hubei Provincial Key Laboratory of Occurrence and Intervention of Rheumatic Disease, Enshi, China
| | - Jiaoe Sheng
- Department of Rheumatology and Immunology, Minda Hospital of Hubei Minzu University, Hubei Provincial Key Laboratory of Occurrence and Intervention of Rheumatic Disease, Enshi, China
| | - Sanshan He
- Department of Rheumatology and Immunology, Minda Hospital of Hubei Minzu University, Hubei Provincial Key Laboratory of Occurrence and Intervention of Rheumatic Disease, Enshi, China
| | - Qingchao Wu
- Department of Rheumatology and Immunology, Minda Hospital of Hubei Minzu University, Hubei Provincial Key Laboratory of Occurrence and Intervention of Rheumatic Disease, Enshi, China
| | - Yunlong Wang
- Department of Rheumatology and Immunology, Minda Hospital of Hubei Minzu University, Hubei Provincial Key Laboratory of Occurrence and Intervention of Rheumatic Disease, Enshi, China
| | - Linchong Su
- Department of Rheumatology and Immunology, Minda Hospital of Hubei Minzu University, Hubei Provincial Key Laboratory of Occurrence and Intervention of Rheumatic Disease, Enshi, China
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22
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Dominating Cause of Pulmonary Hypertension May Change Over Time-Diagnostic and Therapeutic Considerations in a Patient with Pulmonary Hypertension Due to Rheumatoid Arthritis with Lung Involvement. Diagnostics (Basel) 2021; 11:diagnostics11101931. [PMID: 34679629 PMCID: PMC8534521 DOI: 10.3390/diagnostics11101931] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 10/13/2021] [Accepted: 10/14/2021] [Indexed: 12/20/2022] Open
Abstract
Chronic lung diseases are one of the most frequent causes of pulmonary hypertension (PH). The diagnostic challenge is to differentiate PH due to chronic lung disease from pulmonary arterial hypertension (PAH) with coexisting chronic lung disease. Moreover, the dominating cause of PH may change over time, requiring the implementation of new diagnostic procedures and new treatment modalities. We present a 68-year-old female, initially diagnosed with PH in the course of interstitial lung disease, with restrictive impairment of lung function. Therapy with immunosuppressive drugs resulted in significant clinical, radiological and functional improvement. However, five years later, arthritis symptoms developed, with PH worsening, despite stable lung disease. The patient was diagnosed with PAH in the course of rheumatoid arthritis. The introduction of sildenafil resulted in marked clinical and hemodynamic responses. Long-term survival (eleven years from PH onset and five years from PAH confirmation) has been achieved, and the patient remains in good functional condition. As the differential diagnosis of PH in patients with lung diseases is complex, the cooperation of pulmonologists and cardiologists is mandatory to obtain therapeutic success.
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Abstract
PURPOSE OF REVIEW Describe the concept and recent data for the concept of progressive fibrotic interstitial lung disease (ILD). RECENT FINDINGS Making an accurate diagnosis is critical to help determine appropriate therapy and predict prognosis. This is certainly true in the field of ILD where a diagnosis of idiopathic pulmonary fibrosis (IPF) leads a clinician to consider initiation of antifibrotic therapy, and avoidance of immunosuppression due to possible harm, at the time of diagnosis due to the high probability of disease progression. In other types of ILD immunosuppression may be helpful such as those associated with a connective tissue disease or in combination with antigen avoidance in hypersensitivity pneumonia. It is also recognized that despite initial approaches to therapy some non-IPF ILDs will develop progressive fibrosis leading to increased symptoms, decreased quality of life and early mortality. Once fibrosis is present, the biologic pathways responsible for progression can be redundant and respond in a similar fashion to antifibrotic therapy independent of the underlying disease. SUMMARY There are clinical and biological rationale for the justification of a progressive fibrotic phenotype that complements the therapeutic decisions and prognosis provided by initial diagnosis.
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Rheumatoid Arthritis and Associated-Interstitial Lung Disease: Mortality Rates and Trends. Ann Am Thorac Soc 2021; 18:1970-1977. [PMID: 33951402 DOI: 10.1513/annalsats.202102-115oc] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
RATIONALE The burden of rheumatoid arthritis (RA) and RA-associated interstitial lung disease (RA-ILD) in recent years has not been well characterized. OBJECTIVE In this study, we sought to describe RA and RA-ILD-related mortality rates and trends in the U.S. from 2005-2018, stratified by demographics. METHODS We used the Multiple Cause of Death Database available through the Centers for Disease Control and prevention website which contains data of all deceased U.S. residents. RA and RA-ILD-related deaths were identified using ICD-10 codes. We examined the age-adjusted mortality rates and trends stratified by demographics. RESULTS RA and RA-ILD-related mortality rates were higher in females and older age groups. However, the prevalence of ILD was higher in male decedents with RA compared to female decedents with RA (13.3% vs. 8.7%). RA-related mortality rates were the highest in Native Americans followed by Whites. Compared to Whites, Hispanics had lower RA-related mortality rates but higher RA-ILD-related mortality rates. Overall RA-related mortality rates per 1,000,000 population decreased from 30.6 in 2005 to 22.2 in 2018. RA-related mortality rates declined in both sex, all races, and all age groups. However, RA-ILD-related mortality rates remained stable in both sex, all races, and all age groups except for ages 65 to 84 years, in which the rates declined. CONCLUSIONS The overall RA-related mortality rates are decreasing, however, RA-ILD-related mortality rates remain stable except in age groups 65-84 years. This would suggest that therapies for RA and improvement in the management of other comorbidities have improved the overall outcomes in RA patients, but have had limited effect in the subgroup of patients with RA-ILD.
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Cottin V, Bendstrup E, Bonniaud P, Nasser M, Spagnolo P, Valenzuela C, Kolb M. The case of methotrexate and the lung: Dr Jekyll and Mr Hyde. Eur Respir J 2021; 57:57/2/2100079. [PMID: 33574052 DOI: 10.1183/13993003.00079-2021] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Accepted: 01/13/2021] [Indexed: 11/05/2022]
Affiliation(s)
- Vincent Cottin
- Dept of Respiratory Medicine, National Coordinating Reference Center for Rare Pulmonary Diseases, Louis Pradel Hospital, Hospices Civils de Lyon, Lyon, France.,University of Lyon, INRAE, IVPC, Lyon, France
| | - Elizabeth Bendstrup
- Center for Rare Lung Diseases, Dept of Respiratory Diseases and Allergy, Aarhus University Hospital, Aarhus, Denmark
| | - Philippe Bonniaud
- Constitutive Reference Center for Rare Pulmonary Diseases, Dept of Pulmonary Medicine and Intensive Care Unit, University Hospital, Bourgogne-Franche-Comté, Burgundy University, Inserm 1231, Dijon, France
| | - Mouhamad Nasser
- Dept of Respiratory Medicine, National Coordinating Reference Center for Rare Pulmonary Diseases, Louis Pradel Hospital, Hospices Civils de Lyon, Lyon, France.,University of Lyon, INRAE, IVPC, Lyon, France
| | - Paolo Spagnolo
- Respiratory Disease Unit, Dept of Cardiac, Thoracic, Vascular Sciences and Public Health, University of Padova, Padova, Italy
| | - Claudia Valenzuela
- Pulmonology Dept, Hospital Universitario de la Princesa, Universidad Autonoma de Madrid, Madrid, Spain
| | - Martin Kolb
- Dept of Respiratory Medicine, Pathology and Molecular Medicine, McMaster University, Hamilton, ON, Canada
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Selman M, Pardo A. When things go wrong: exploring possible mechanisms driving the progressive fibrosis phenotype in interstitial lung diseases. Eur Respir J 2021; 58:13993003.04507-2020. [PMID: 33542060 DOI: 10.1183/13993003.04507-2020] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Accepted: 01/27/2021] [Indexed: 02/06/2023]
Abstract
Interstitial lung diseases (ILDs) comprise a large and heterogeneous group of disorders of known and unknown aetiology characterised by diffuse damage of the lung parenchyma. In recent years it has become evident that patients with different types of ILD are at risk of developing progressive pulmonary fibrosis, known as progressive fibrosing ILD (PF-ILD). This is a phenotype that behaves similar to idiopathic pulmonary fibrosis, the archetypical example of progressive fibrosis. PF-ILD is not a distinct clinical entity but describes a group of ILDs with similar clinical behaviour. This phenotype may occur in diseases displaying distinct aetiologies and different biopathology during their initiation and development. Importantly, these entities may have the potential for improvement or stabilisation prior to entering the progressive fibrosing phase. The crucial questions are: 1) why does a subset of patients develop a progressive and irreversible fibrotic phenotype even with appropriate treatment? and 2) what are the possible pathogenic mechanisms driving progression? Here, we provide a framework highlighting putative mechanisms underlying progression, including genetic susceptibility, ageing, epigenetics, structural fibrotic distortion, aberrant composition and stiffness of the extracellular matrix, and the emergence of distinct pro-fibrotic cell subsets. Understanding the cellular and molecular mechanisms behind PF-ILD will provide the basis for identifying risk factors and appropriate therapeutic strategies.
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Affiliation(s)
- Moisés Selman
- Instituto Nacional de Enfermedades Respiratorias "Ismael Cosío Villegas", Mexico City, Mexico
| | - Annie Pardo
- Facultad de Ciencias, Universidad Nacional Autónoma de Mexico, Mexico City, Mexico
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