1
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Van Remortel S, Risha Y, Parent S, Nair V, Birnie DH, Davis DR. Development of a Mouse Cardiac Sarcoidosis Model Using Carbon Nanotubes. Adv Biol (Weinh) 2024:e2400238. [PMID: 38864562 DOI: 10.1002/adbi.202400238] [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: 05/03/2024] [Indexed: 06/13/2024]
Abstract
Sarcoidosis, a granulomatous disorder of unknown etiology affecting multiple organs. It is often a benign disease but can have significant morbidity and mortality when the heart is involved (often presenting with clinical manifestations such as conduction irregularities and heart failure). This study addresses a critical gap in cardiac sarcoidosis (CS) research by developing a robust animal model. The absence of a reliable animal model for cardiac sarcoidosis is a significant obstacle in advancing understanding and treatment of this condition. The proposed model utilizes carbon nanotube injection and transverse aortic constriction as stressors. Intramyocardial injection of carbon nanotubes induces histiocytes typical of sarcoid granulomas in the heart but shows limited effects on fibrosis or cardiac function. Priming the immune system with transverse aortic constriction prior to intramyocardial injection of carbon nanotubes enhances cardiac fibrosis, diminishes cardiac function, and impairs cardiac conduction. This novel, easily executable model may serve as a valuable tool for disease profiling, biomarker identification, and therapeutic exploration.
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Affiliation(s)
- Sophie Van Remortel
- University of Ottawa Heart Institute, Division of Cardiology, Department of Medicine, University of Ottawa, Ottawa, K1Y4W7, Canada
| | - Yousef Risha
- University of Ottawa Heart Institute, Division of Cardiology, Department of Medicine, University of Ottawa, Ottawa, K1Y4W7, Canada
| | - Sandrine Parent
- University of Ottawa Heart Institute, Division of Cardiology, Department of Medicine, University of Ottawa, Ottawa, K1Y4W7, Canada
| | - Vidhya Nair
- Department of Pathology and Laboratory Medicine, Ottawa Hospital and Faculty of Medicine, University of Ottawa, Ottawa, K1H8M5, Canada
| | - David H Birnie
- University of Ottawa Heart Institute, Division of Cardiology, Department of Medicine, University of Ottawa, Ottawa, K1Y4W7, Canada
| | - Darryl R Davis
- University of Ottawa Heart Institute, Division of Cardiology, Department of Medicine, University of Ottawa, Ottawa, K1Y4W7, Canada
- Department of Cellular and Molecular Medicine, University of Ottawa, Ottawa, K1H8M5, Canada
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2
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Starshinova A, Zinchenko Y, Malkova A, Kudlay D, Kudryavtsev I, Yablonskiy P. Sarcoidosis and Autoimmune Inflammatory Syndrome Induced by Adjuvants. Life (Basel) 2023; 13:life13041047. [PMID: 37109576 PMCID: PMC10145559 DOI: 10.3390/life13041047] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 04/16/2023] [Accepted: 04/17/2023] [Indexed: 04/29/2023] Open
Abstract
Currently, sarcoidosis remains one of the diseases with unknown etiology, which significantly complicates its diagnosis and treatment. Various causes of sarcoidosis have been studied for many years. Both organic and inorganic trigger factors, provoking the development of granulomatous inflammation are considered. However, the most promising and evidence-based hypothesis is the development of sarcoidosis as an autoimmune disease, provoked by various adjuvants in genetic predisposed individuals. This concept fits into the structure of the autoimmune/inflammatory syndrome, induced by adjuvants (ASIA) that was proposed in 2011 by Professor Shoenfeld Y. In this paper, the authors reveal the presence of major and minor ASIA criteria for sarcoidosis, propose a new concept of the course of sarcoidosis within the framework of ASIA, and point out the difficulties in creating a model of the disease and the selection of therapy. It is obvious that the data obtained not only bring us closer to understanding the nature of sarcoidosis, but also potentiate new studies confirming this hypothesis by obtaining a model of the disease.
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Affiliation(s)
- Anna Starshinova
- Almazov National Medical Research Centre, 197341 Saint-Petersburg, Russia
| | - Yulia Zinchenko
- Saint-Petersburg Research Institute of Phthisiopulmonology, 194064 Saint-Petersburg, Russia
| | - Anna Malkova
- Laboratory of the Mosaic of Autoimmunity, Saint-Petersburg State University, 199034 Saint-Petersburg, Russia
| | - Dmitriy Kudlay
- Medical Department, Sechenov First Moscow State Medical University, 119435 Moscow, Russia
- Institute of Immunology, 115478 Moscow, Russia
| | - Igor Kudryavtsev
- Almazov National Medical Research Centre, 197341 Saint-Petersburg, Russia
- Department of Immunology, Institution of Experimental Medicine, 197022 Saint-Petersburg, Russia
| | - Piotr Yablonskiy
- Saint-Petersburg Research Institute of Phthisiopulmonology, 194064 Saint-Petersburg, Russia
- Laboratory of the Mosaic of Autoimmunity, Saint-Petersburg State University, 199034 Saint-Petersburg, Russia
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3
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Macrophage Biology in Human Granulomatous Skin Inflammation. Int J Mol Sci 2023; 24:ijms24054624. [PMID: 36902053 PMCID: PMC10003716 DOI: 10.3390/ijms24054624] [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: 01/22/2023] [Revised: 02/15/2023] [Accepted: 02/22/2023] [Indexed: 03/04/2023] Open
Abstract
Cutaneous granulomatoses represent a heterogeneous group of diseases, which are defined by macrophage infiltration in the skin. Skin granuloma can be formed in the context of infectious and non-infectious conditions. Recent technological advances have deepened our understanding of the pathophysiology of granulomatous skin inflammation, and they provide novel insights into human tissue macrophage biology at the site of ongoing disease. Here, we discuss findings on macrophage immune function and metabolism derived from three prototypic cutaneous granulomatoses: granuloma annulare, sarcoidosis, and leprosy.
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4
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Weeratunga P, Moller DR, Ho LP. Immune mechanisms in fibrotic pulmonary sarcoidosis. Eur Respir Rev 2022; 31:220178. [PMID: 36543347 PMCID: PMC9879330 DOI: 10.1183/16000617.0178-2022] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2022] [Accepted: 10/21/2022] [Indexed: 12/24/2022] Open
Abstract
Sarcoidosis is an immune-mediated disorder. Its immunopathology has been steadily mapped out over the past few decades. Despite this, the underpinning mechanisms for progressive fibrotic sarcoidosis is an almost uncharted area. Consequently, there has been little change in the clinical management of fibrotic sarcoidosis over the decades and an unfocused search for new therapeutics. In this review, we provide a comprehensive examination of the relevant immune findings in fibrotic and/or progressive pulmonary sarcoidosis and propose a unifying mechanism for the pathobiology of fibrosis in sarcoidosis.
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Affiliation(s)
- Praveen Weeratunga
- Oxford Sarcoidosis Clinic, Oxford Interstitial Lung Disease Service, Oxford, UK
- MRC Human Immunology Unit, University of Oxford, Oxford, UK
| | - David R Moller
- Department of Medicine, Johns Hopkins University, Baltimore, MD, USA
| | - Ling-Pei Ho
- Oxford Sarcoidosis Clinic, Oxford Interstitial Lung Disease Service, Oxford, UK
- MRC Human Immunology Unit, University of Oxford, Oxford, UK
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5
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Liu A, Sharma L, Yan X, Dela Cruz CS, Herzog EL, Ryu C. Emerging insights in sarcoidosis: moving forward through reverse translational research. Am J Physiol Lung Cell Mol Physiol 2022; 322:L518-L525. [PMID: 35196896 PMCID: PMC8957321 DOI: 10.1152/ajplung.00266.2021] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 12/13/2021] [Accepted: 02/22/2022] [Indexed: 11/22/2022] Open
Abstract
Sarcoidosis is a chronic granulomatous disease of unknown etiology that primarily affects the lungs. The development of stage IV or fibrotic lung disease accounts for a significant proportion of the morbidity and mortality attributable to sarcoidosis. Further investigation into the active mechanisms of disease pathogenesis and fibrogenesis might illuminate fundamental mediators of injury and repair while providing new opportunities for clinical intervention. However, progress in sarcoidosis research has been hampered by the heterogeneity of clinical phenotypes and the lack of a consensus modeling system. Recently, reverse translational research, wherein observations made at the patient level catalyze hypothesis-driven research at the laboratory bench, has generated new discoveries regarding the immunopathogenic mechanisms of pulmonary granuloma formation, fibrogenesis, and disease model development. The purpose of this review is to highlight the promise and possibility of these novel investigative efforts.
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Affiliation(s)
- Angela Liu
- Section of Pulmonary, Critical Care, and Sleep Medicine, Yale School of Medicine, Yale University, New Haven, Connecticut
| | - Lokesh Sharma
- Section of Pulmonary, Critical Care, and Sleep Medicine, Yale School of Medicine, Yale University, New Haven, Connecticut
| | - Xiting Yan
- Section of Pulmonary, Critical Care, and Sleep Medicine, Yale School of Medicine, Yale University, New Haven, Connecticut
| | - Charles S Dela Cruz
- Section of Pulmonary, Critical Care, and Sleep Medicine, Yale School of Medicine, Yale University, New Haven, Connecticut
| | - Erica L Herzog
- Section of Pulmonary, Critical Care, and Sleep Medicine, Yale School of Medicine, Yale University, New Haven, Connecticut
| | - Changwan Ryu
- Section of Pulmonary, Critical Care, and Sleep Medicine, Yale School of Medicine, Yale University, New Haven, Connecticut
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6
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New laboratory criteria of the autoimmune inflammation in pulmonary sarcoidosis and tuberculosis. Clin Immunol 2021; 227:108724. [PMID: 33845192 DOI: 10.1016/j.clim.2021.108724] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 03/30/2021] [Accepted: 04/05/2021] [Indexed: 01/23/2023]
Abstract
Sarcoidosis and tuberculosis have many clinical and laboratory similarities, which allowed researchers to assume the presence of common pathogenetic mechanisms in the development of both diseases. Recently, much attention has been paid to investigate the autoimmune origins in these pathologies. The aim of this study is to find out the characteristics of the autoinflammatory immune response in sarcoidosis and tuberculosis. In patients with sarcoidosis (n = 93), tuberculosis (n = 28), and in healthy donors (n = 40), the serum anti-MCV concentration was measured by ELISA, and B cell subpopulations were analyzed by flow cytometry. Based on the results obtained, the formula ([B-naïve%]\[B-memory%]) * ([B-CD38%] + [B-CD5%]) / [anti-MCV] was described. The increase in the calculated index by more than 5 units with a sensitivity of 80.00% and a specificity of 93.10% (AUC = 0.926) suggest the presence of the autoimmune component, which is more typical for sarcoidosis, rather than tuberculosis patients and may serve as a diagnostic criterion.
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7
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Minasyan M, Sharma L, Pivarnik T, Liu W, Adams T, Bermejo S, Peng X, Liu A, Ishikawa G, Perry C, Kaminski N, Gulati M, Herzog EL, Dela Cruz CS, Ryu C. Elevated IL-15 concentrations in the sarcoidosis lung are independent of granuloma burden and disease phenotypes. Am J Physiol Lung Cell Mol Physiol 2021; 320:L1137-L1146. [PMID: 33851886 DOI: 10.1152/ajplung.00575.2020] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Sarcoidosis is a systemic granulomatous disease predominantly affecting the lungs. The mechanisms promoting disease pathogenesis and progression are unknown, although interleukin-15 (IL-15) has been associated with the immune-mediated inflammation of sarcoidosis. Because the identification of a mechanistically based, clinically relevant biomarker for sarcoidosis remains elusive, we hypothesized this role for IL-15. Pulmonary sarcoidosis granuloma formation was modeled using trehalose 6,6'-dimicolate (TDM), which was administered into wild-type and three lineages of mice: those overexpressing IL-15, deficient in IL-15, and deficient in IL-15 receptor α. The number of granulomas per lung was counted and normalized to the wild type. IL-15 concentrations were measured in the bronchoalveolar lavage (BAL) from healthy controls and subjects with sarcoidosis in our cohort, where associations between IL-15 levels and clinical manifestations were sought. Findings were validated in another independent sarcoidosis cohort. TDM administration resulted in similar granuloma numbers across all lineages of mice. IL-15 concentrations were elevated in the BAL of both human cohorts, irrespective of disease phenotypes. In exploratory analysis, an association with obesity was observed, and various other soluble mediators were identified in the BAL of both cohorts. Although IL-15 is enriched in the sarcoidosis lung, it was independent of disease pathogenesis or clinical manifestations in our mouse model and human cohorts of sarcoidosis. An association with obesity perhaps reflects the ongoing inflammatory processes of these comorbid conditions. Our findings showed that IL-15 is redundant for disease pathogenesis and clinical progression of sarcoidosis.
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Affiliation(s)
- Maksym Minasyan
- Section of Pulmonary, Critical Care, and Sleep Medicine, Yale School of Medicine, Yale University, New Haven, Connecticut
| | - Lokesh Sharma
- Section of Pulmonary, Critical Care, and Sleep Medicine, Yale School of Medicine, Yale University, New Haven, Connecticut
| | - Taylor Pivarnik
- Section of Pulmonary, Critical Care, and Sleep Medicine, Yale School of Medicine, Yale University, New Haven, Connecticut
| | - Wei Liu
- Section of Pulmonary, Critical Care, and Sleep Medicine, Yale School of Medicine, Yale University, New Haven, Connecticut
| | - Taylor Adams
- Section of Pulmonary, Critical Care, and Sleep Medicine, Yale School of Medicine, Yale University, New Haven, Connecticut
| | - Santos Bermejo
- Section of Pulmonary, Critical Care, and Sleep Medicine, Yale School of Medicine, Yale University, New Haven, Connecticut
| | - Xiaohua Peng
- Section of Pulmonary, Critical Care, and Sleep Medicine, Yale School of Medicine, Yale University, New Haven, Connecticut
| | - Angela Liu
- Section of Pulmonary, Critical Care, and Sleep Medicine, Yale School of Medicine, Yale University, New Haven, Connecticut
| | - Genta Ishikawa
- Section of Pulmonary, Critical Care, and Sleep Medicine, Yale School of Medicine, Yale University, New Haven, Connecticut
| | - Carrighan Perry
- Section of Pulmonary, Critical Care, and Sleep Medicine, Yale School of Medicine, Yale University, New Haven, Connecticut
| | - Naftali Kaminski
- Section of Pulmonary, Critical Care, and Sleep Medicine, Yale School of Medicine, Yale University, New Haven, Connecticut
| | - Mridu Gulati
- Section of Pulmonary, Critical Care, and Sleep Medicine, Yale School of Medicine, Yale University, New Haven, Connecticut
| | - Erica L Herzog
- Section of Pulmonary, Critical Care, and Sleep Medicine, Yale School of Medicine, Yale University, New Haven, Connecticut
| | - Charles S Dela Cruz
- Section of Pulmonary, Critical Care, and Sleep Medicine, Yale School of Medicine, Yale University, New Haven, Connecticut
| | - Changwan Ryu
- Section of Pulmonary, Critical Care, and Sleep Medicine, Yale School of Medicine, Yale University, New Haven, Connecticut
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8
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Calcagno TM, Zhang C, Tian R, Ebrahimi B, Mirsaeidi M. Novel three-dimensional biochip pulmonary sarcoidosis model. PLoS One 2021; 16:e0245805. [PMID: 33539409 PMCID: PMC7861546 DOI: 10.1371/journal.pone.0245805] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Accepted: 01/07/2021] [Indexed: 02/07/2023] Open
Abstract
Sarcoidosis is a multi-system disorder of granulomatous inflammation which most commonly affects the lungs. Its etiology and pathogenesis are not well defined in part due to the lack of reliable modeling. Here, we present the development of an in vitro three-dimensional lung-on-chip biochip designed to mimic granuloma formation. A lung on chip fluidic macrodevice was developed and added to our previously developed a lung-on-membrane model (LOMM). Granulomas were cultured from blood samples of patients with sarcoidosis and then inserted in the air-lung-interface of the microchip to create a three-dimensional biochip pulmonary sarcoidosis model (3D BSGM). Cytokines were measured after 48 hours. ELISA testing was performed to measure cytokine response difference between LOMM with 3D BSGM. There were statistically significant differences in IL-1ß (P = 0.001953), IL-6 (P = 0.001953), GM-CSF (P = 0.001953), and INF-γ expressions (P = 0.09375) between two groups. The current model represents the first 3D biochip sarcoidosis model created by adding a microfluidics system to a dual-chambered lung on membrane model and introducing developed sarcoid-granuloma to its air-lung-interface.
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Affiliation(s)
- Tess M. Calcagno
- Department of Medicine, University of Miami, Miami, FL, United States of America
| | - Chongxu Zhang
- Division of Pulmonary and Critical Care, University of Miami, Miami, FL, United States of America
| | - Runxia Tian
- Division of Pulmonary and Critical Care, University of Miami, Miami, FL, United States of America
| | - Babak Ebrahimi
- Research and Development, Genix-Engineering, Irvin, California, United States of America
| | - Mehdi Mirsaeidi
- Division of Pulmonary and Critical Care, University of Miami, Miami, FL, United States of America
- * E-mail:
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9
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Locke LW, Schlesinger LS, Crouser ED. Current Sarcoidosis Models and the Importance of Focusing on the Granuloma. Front Immunol 2020; 11:1719. [PMID: 32849608 PMCID: PMC7417311 DOI: 10.3389/fimmu.2020.01719] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Accepted: 06/29/2020] [Indexed: 12/24/2022] Open
Abstract
The inability to effectively model sarcoidosis in the laboratory or in animals continues to hinder the discovery and translation of new, targeted treatments. The granuloma is the signature pathological hallmark of sarcoidosis, yet there are significant knowledge gaps that exist with regard to how granulomas form. Significant progress toward improved therapeutic and prognostic strategies in sarcoidosis hinges on tractable experimental models that recapitulate the process of granuloma formation in sarcoidosis and allow for mechanistic insights into the molecular events involved. Through its inherent representation of the complex genetics underpinning immune cell dysregulation in sarcoidosis, a recently developed in vitro human granuloma model holds promise in providing detailed mechanistic insight into sarcoidosis–specific disease regulating pathways at play during early stages of granuloma formation. The purpose of this review is to critically evaluate current sarcoidosis models and assess their potential to progress the field toward the goal of improved therapies in this disease. We conclude with the potential integrated use of preclinical models to accelerate progress toward identifying and testing new drugs and drug combinations that can be rapidly brought to clinical trials.
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Affiliation(s)
- Landon W Locke
- Department of Microbial Infection and Immunity, The Ohio State University Wexner Medical Center, Columbus, OH, United States
| | - Larry S Schlesinger
- Host-Pathogens Interactions Program, Texas Biomedical Research Institute, San Antonio, TX, United States
| | - Elliott D Crouser
- Division of Pulmonary, Allergy, Critical Care, and Sleep Medicine, The Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH, United States
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10
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Models Contribution to the Understanding of Sarcoidosis Pathogenesis: "Are There Good Models of Sarcoidosis?". J Clin Med 2020; 9:jcm9082445. [PMID: 32751786 PMCID: PMC7464295 DOI: 10.3390/jcm9082445] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 07/27/2020] [Accepted: 07/27/2020] [Indexed: 12/29/2022] Open
Abstract
Sarcoidosis is a systemic, granulomatous, and noninfectious disease of unknown etiology. The clinical heterogeneity of the disease (targeted tissue(s), course of the disease, and therapy response) supports the idea that a multiplicity of trigger antigens may be involved. The pathogenesis of sarcoidosis is not yet completely understood, although in recent years, considerable efforts were put to develop novel experimental research models of sarcoidosis. In particular, sarcoidosis patient cells were used within in vitro 3D models to study their characteristics compared to control patients. Likewise, a series of transgenic mouse models were developed to highlight the role of particular signaling pathways in granuloma formation and persistence. The purpose of this review is to put in perspective the contributions of the most recent models in the understanding of sarcoidosis.
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11
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Abstract
Sarcoidosis is a multisystem granulomatous disease that may affect any body organ. Sarcoidosis is associated with many environmental and occupational exposures. Because the exact immunopathogenesis of sarcoidosis is unknown, it is not known whether these exposures are truly causing sarcoidosis, rendering the immune system more susceptible to the development of sarcoidosis, exacerbating subclinical cases of sarcoidosis, or causing a granulomatous condition distinct from sarcoidosis. This manuscript outlines what is known about the immunopathogenesis of sarcoidosis and postulates mechanisms whereby these exposures could cause or exacerbate the disease. We also describe the varied environmental and occupational exposures that have been associated with sarcoidosis. This includes potential infectious exposures such as mycobacteria and Propionibacterium acnes, a skin commensal bacterium, as well as non-infectious environmental exposures including inhaled bioaerosols, metal dusts and products of combustion. Further insights concerning the relationship of environmental exposures to the development of sarcoidosis may have a major impact on the prevention and treatment of this enigmatic disease.
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12
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Cohen MD, Prophete C, Horton L, Sisco M, Park SH, Lee HW, Zelikoff J, Chen LC. Impact on rats from acute intratracheal inhalation exposures to WTC dusts. Inhal Toxicol 2020; 32:218-230. [PMID: 32448006 DOI: 10.1080/08958378.2020.1768322] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Background: Studies have revealed the increased incidence of health disorders in First Responders (FR) who were at Ground Zero over the initial 72 hr after the World Trade Center (WTC) collapses. Previous studies in rats exposed to WTC dusts using exposure scenarios that mimicked FR mouthbreathing showed exposure led to altered expression of genes whose products could be involved in lung ailments. Nevertheless, it was uncertain if repeated exposures (as occurred in earliest days post-disaster) might have given rise to long-term changes in the lungs/other organs, in white blood cell (WBC) profiles, and/or systemic expression of select (mostly immune-related) proteins.Methods: To examine this, rats were exposed on 2 consecutive days (2 hr/d, intratracheal inhalation) to WTC dusts and then examined over a 1-yr period thereafter. At select times post-exposure, organ (lung, heart, liver, kidney, spleen) weights, WBC profiles, and blood levels of a variety of proteins were evaluated.Results: The study showed that over the 1-yr period, there were nominal effects on organ weights (absolute, index) as a result of the dust exposures. There were significant changes (relative to in naïve rats) in WBC profiles, with exposed rats having increased monocyte-macrophage and decreased lymphocyte percentages. The study also found that dust exposure led to significant systemic increases in many proteins, including MCP-1, RANTES, MMP-9, RAGE, and Galectin-3.Conclusions: These results provide further support for our longstanding hypothesis that the WTC dusts could potentially have acted as direct inducers of many of the health effects that have been seen in the exposed FR.
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Affiliation(s)
- Mitchell D Cohen
- Department of Environmental Medicine, New York University of School of Medicine, New York, NY, USA
| | - Colette Prophete
- Department of Environmental Medicine, New York University of School of Medicine, New York, NY, USA
| | - Lori Horton
- Department of Environmental Medicine, New York University of School of Medicine, New York, NY, USA
| | - Maureen Sisco
- Department of Environmental Medicine, New York University of School of Medicine, New York, NY, USA
| | - Sung-Hyun Park
- Department of Environmental Medicine, New York University of School of Medicine, New York, NY, USA
| | - Hyun-Wook Lee
- Department of Environmental Medicine, New York University of School of Medicine, New York, NY, USA
| | - Judith Zelikoff
- Department of Environmental Medicine, New York University of School of Medicine, New York, NY, USA
| | - Lung-Chi Chen
- Department of Environmental Medicine, New York University of School of Medicine, New York, NY, USA
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13
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Starshinova AA, Malkova AM, Basantsova NY, Zinchenko YS, Kudryavtsev IV, Ershov GA, Soprun LA, Mayevskaya VA, Churilov LP, Yablonskiy PK. Sarcoidosis as an Autoimmune Disease. Front Immunol 2020; 10:2933. [PMID: 31969879 PMCID: PMC6960207 DOI: 10.3389/fimmu.2019.02933] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Accepted: 11/29/2019] [Indexed: 12/20/2022] Open
Abstract
Despite the large number of performed studies, the etiology and pathogenesis of sarcoidosis still remain unknown. Most researchers allude to the possible autoimmune or immune-mediated genesis of the disease. This review attempts an integral analysis of currently available information suggesting an autoimmune genesis of sarcoidosis and is divided into four categories: the evaluation of clinical signs described both in patients with sarcoidosis and “classic” autoimmune diseases, the role of triggering factors in the development of sarcoidosis, the presence of immunogenic susceptibility in the development of the disease, and the analysis of cellular and humoral immune responses in sarcoidosis. Studying the etiology and pathogenesis of sarcoidosis will improve diagnostic procedures as well as the prognosis and patients' quality of life.
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Affiliation(s)
- Anna A Starshinova
- Laboratory of the Mosaic of Autoimmunity, St. Petersburg State University, St. Petersburg, Russia
| | - Anna M Malkova
- Laboratory of the Mosaic of Autoimmunity, St. Petersburg State University, St. Petersburg, Russia
| | - Natalia Y Basantsova
- Laboratory of the Mosaic of Autoimmunity, St. Petersburg State University, St. Petersburg, Russia.,Phthisiopulmonology Department, St. Petersburg State Research Institute of Phthisiopulmonology, St. Petersburg, Russia
| | - Yulia S Zinchenko
- Laboratory of the Mosaic of Autoimmunity, St. Petersburg State University, St. Petersburg, Russia.,Phthisiopulmonology Department, St. Petersburg State Research Institute of Phthisiopulmonology, St. Petersburg, Russia
| | - Igor V Kudryavtsev
- Laboratory of the Mosaic of Autoimmunity, St. Petersburg State University, St. Petersburg, Russia.,Immunology Department, Institute of Experimental Medicine, St. Petersburg, Russia.,Immunology Department, School of Biomedicine, Far Eastern Federal University, Vladivostok, Russia
| | - Gennadiy A Ershov
- Laboratory of the Mosaic of Autoimmunity, St. Petersburg State University, St. Petersburg, Russia
| | - Lidia A Soprun
- Laboratory of the Mosaic of Autoimmunity, St. Petersburg State University, St. Petersburg, Russia
| | - Vera A Mayevskaya
- Foreign Languages Department, St. Petersburg University of Economics, St. Petersburg, Russia
| | - Leonid P Churilov
- Laboratory of the Mosaic of Autoimmunity, St. Petersburg State University, St. Petersburg, Russia.,Phthisiopulmonology Department, St. Petersburg State Research Institute of Phthisiopulmonology, St. Petersburg, Russia
| | - Piotr K Yablonskiy
- Laboratory of the Mosaic of Autoimmunity, St. Petersburg State University, St. Petersburg, Russia.,Phthisiopulmonology Department, St. Petersburg State Research Institute of Phthisiopulmonology, St. Petersburg, Russia
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14
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Song J, Zhao M, Li Q, Lu L, Zhou Y, Zhang Y, Chen T, Tang D, Zhou N, Yin C, Weng D, Li H. IL-17A Can Promote Propionibacterium acnes-Induced Sarcoidosis-Like Granulomatosis in Mice. Front Immunol 2019; 10:1923. [PMID: 31474992 PMCID: PMC6702313 DOI: 10.3389/fimmu.2019.01923] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Accepted: 07/29/2019] [Indexed: 12/27/2022] Open
Abstract
The etiology of sarcoidosis is unknown. In this study, Propionibacterium acnes (PA) was used to induce sarcoidosis-like granulomatous inflammation in a mouse model. Wild-Type (WT) C57BL/6 mice were divided into three groups: (1) WT-PA group; (2) WT-PA + Incomplete Freund's Adjuvant (IFA) group; and (3) WT-PBS group. Loose granuloma formation was observed in the lungs on day 56 in the WT-PA and WT-PA + IFA groups. The proportions of peripheral Th17 cells in the WT-PA (p = 0.0004) and WT-PA + IFA groups (p = 0.0005) were significantly higher than that in the WT-PBS group. The proportions of peripheral Treg cells in the WT-PA (p < 0.0001) and WT-PA + IFA groups (p < 0.0001) were lower than that in the WT-PBS group. Then, to explore the mechanism of IL-17, Wild-Type (WT) C57BL/6 mice were divided into three groups: (1) WT-PBS group (2) WT-PA group; (3) WT-PA + mouse IL-17A neutralizing antibody (IL-17Ab) group. IL-17A gene knockout mice (KO) were divided into two groups: (1) KO -PA group; (2) KO-PBS group. The KO-PA and WT-PA + IL-17Ab groups showed reduced inflammation and no loose granuloma formation on day 56. As compared to the WT-PA group, the ratio of peripheral Th17 in the KO-PA (p < 0.0001) and WT-PA + IL-17Ab groups (p < 0.0001) decreased, while the ratio of peripheral Treg in the KO-PA (p < 0.0001) and WT-PA + IL-17Ab (p = 0.0069) groups increased on day 56. Hence, PA can be used to establish a mouse model of sarcoidosis-like granuloma. IL-17A plays an important role in experimental sarcoidosis-like granuloma formation.
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Affiliation(s)
- Jiacui Song
- School of Medicine, Soochow University, Suzhou, China.,Department of Respiratory Medicine, School of Medicine, Shanghai Pulmonary Hospital, Tongji University, Shanghai, China
| | - Mengmeng Zhao
- Department of Respiratory Medicine, School of Medicine, Shanghai Pulmonary Hospital, Tongji University, Shanghai, China
| | - Qiuhong Li
- Department of Respiratory Medicine, School of Medicine, Shanghai Pulmonary Hospital, Tongji University, Shanghai, China
| | - Liqin Lu
- Department of Respiratory Medicine, School of Medicine, Shanghai Pulmonary Hospital, Tongji University, Shanghai, China
| | - Ying Zhou
- Department of Respiratory Medicine, School of Medicine, Shanghai Pulmonary Hospital, Tongji University, Shanghai, China
| | - Yuan Zhang
- Department of Respiratory Medicine, School of Medicine, Shanghai Pulmonary Hospital, Tongji University, Shanghai, China
| | - Tao Chen
- Department of Respiratory Medicine, School of Medicine, Shanghai Pulmonary Hospital, Tongji University, Shanghai, China
| | - Danli Tang
- Department of Respiratory Medicine, School of Medicine, Shanghai Pulmonary Hospital, Tongji University, Shanghai, China
| | - Nianyu Zhou
- Department of Respiratory Medicine, School of Medicine, Shanghai Pulmonary Hospital, Tongji University, Shanghai, China
| | - Chengsheng Yin
- Department of Respiratory Medicine, School of Medicine, Shanghai Pulmonary Hospital, Tongji University, Shanghai, China
| | - Dong Weng
- Department of Respiratory Medicine, School of Medicine, Shanghai Pulmonary Hospital, Tongji University, Shanghai, China
| | - Huiping Li
- Department of Respiratory Medicine, School of Medicine, Shanghai Pulmonary Hospital, Tongji University, Shanghai, China
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15
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Inaoka PT, Shono M, Kamada M, Espinoza JL. Host-microbe interactions in the pathogenesis and clinical course of sarcoidosis. J Biomed Sci 2019; 26:45. [PMID: 31182092 PMCID: PMC6558716 DOI: 10.1186/s12929-019-0537-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Accepted: 05/22/2019] [Indexed: 12/27/2022] Open
Abstract
Sarcoidosis is a rare inflammatory disease characterized by the development of granulomas in various organs, especially in the lungs and lymph nodes. Clinics of the disease largely depends on the organ involved and may range from mild symptoms to life threatening manifestations. Over the last two decades, significant advances in the diagnosis, clinical assessment and treatment of sarcoidosis have been achieved, however, the precise etiology of this disease remains unknown. Current evidence suggests that, in genetically predisposed individuals, an excessive immune response to unknown antigen/s is crucial for the development of sarcoidosis. Epidemiological and microbiological studies suggest that, at least in a fraction of patients, microbes or their products may trigger the immune response leading to sarcoid granuloma formation. In this article, we discuss the scientific evidence on the interaction of microbes with immune cells that may be implicated in the immunopathogenesis of sarcoidosis, and highlight recent studies exploring potential implications of human microbiota in the pathogenesis and the clinical course of sarcoidosis.
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Affiliation(s)
- Pleiades T Inaoka
- Department of Physical Therapy, School of Health Sciences, Kanazawa University, Kodatsuno, Kanazawa, 577-8502, Japan
| | - Masato Shono
- Faculty of Medicine, Kindai University, 377-2, Ohno-Higashi, Osaka-Sayama, Osaka, 577-8502, Japan
| | - Mishio Kamada
- Faculty of Medicine, Kindai University, 377-2, Ohno-Higashi, Osaka-Sayama, Osaka, 577-8502, Japan
| | - J Luis Espinoza
- Department of Hematology and Rheumatology, Kindai University Faculty of Medicine, 377-2, Ohno-Higashi, Osaka-Sayama, Osaka, 577-8502, Japan.
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16
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Kovacova E, Buday T, Vysehradsky R, Plevkova J. Cough in sarcoidosis patients. Respir Physiol Neurobiol 2018; 257:18-24. [DOI: 10.1016/j.resp.2018.01.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Revised: 12/23/2017] [Accepted: 01/03/2018] [Indexed: 02/06/2023]
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Calender A, Rollat Farnier PA, Buisson A, Pinson S, Bentaher A, Lebecque S, Corvol H, Abou Taam R, Houdouin V, Bardel C, Roy P, Devouassoux G, Cottin V, Seve P, Bernaudin JF, Lim CX, Weichhart T, Valeyre D, Pacheco Y, Clement A, Nathan N. Whole exome sequencing in three families segregating a pediatric case of sarcoidosis. BMC Med Genomics 2018; 11:23. [PMID: 29510755 PMCID: PMC5839022 DOI: 10.1186/s12920-018-0338-x] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2017] [Accepted: 02/19/2018] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Sarcoidosis (OMIM 181000) is a multi-systemic granulomatous disorder of unknown origin. Despite multiple genome-wide association (GWAS) studies, no major pathogenic pathways have been identified to date. To find out relevant sarcoidosis predisposing genes, we searched for de novo and recessive mutations in 3 young probands with sarcoidosis and their healthy parents using a whole-exome sequencing (WES) methodology. METHODS From the SARCFAM project based on a national network collecting familial cases of sarcoidosis, we selected three families (trios) in which a child, despite healthy parents, develop the disease before age 15 yr. Each trio was genotyped by WES (Illumina HiSEQ 2500) and we selected the gene variants segregating as 1) new mutations only occurring in affected children and 2) as recessive traits transmitted from each parents. The identified coding variants were compared between the three families. Allelic frequencies and in silico functional results were analyzed using ExAC, SIFT and Polyphenv2 databases. The clinical and genetic studies were registered by the ClinicalTrials.gov - Protocol Registration and Results System (PRS) ( https://clinicaltrials.gov ) receipt under the reference NCT02829853 and has been approved by the ethical committee (CPP LYON SUD EST - 2 - REF IRB 00009118 - September 21, 2016). RESULTS We identified 37 genes sharing coding variants occurring either as recessive mutations in at least 2 trios or de novo mutations in one of the three affected children. The genes were classified according to their potential roles in immunity related pathways: 9 to autophagy and intracellular trafficking, 6 to G-proteins regulation, 4 to T-cell activation, 4 to cell cycle and immune synapse, 2 to innate immunity. Ten of the 37 genes were studied in a bibliographic way to evaluate the functional link with sarcoidosis. CONCLUSIONS Whole exome analysis of case-parent trios is useful for the identification of genes predisposing to complex genetic diseases as sarcoidosis. Our data identified 37 genes that could be putatively linked to a pediatric form of sarcoidosis in three trios. Our in-depth focus on 10 of these 37 genes may suggest that the formation of the characteristic lesion in sarcoidosis, granuloma, results from combined deficits in autophagy and intracellular trafficking (ex: Sec16A, AP5B1 and RREB1), G-proteins regulation (ex: OBSCN, CTTND2 and DNAH11), T-cell activation (ex: IDO2, IGSF3), mitosis and/or immune synapse (ex: SPICE1 and KNL1). The significance of these findings needs to be confirmed by functional tests on selected gene variants.
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Affiliation(s)
- Alain Calender
- Genetics Department, Hospices Civils de LYON (HCL), University Hospital, East Pathology Center, LYON, B-A3, 59 Bld Pinel, 69677 BRON Cedex, France
- Inflammation & Immunity of the Respiratory Epithelium - EA7426 (PI3) – South Medical University Hospital – Lyon 1 Claude Bernard University, 165 Chemin du Grand Revoyet, 69310 Pierre-Bénite, France
| | | | - Adrien Buisson
- Genetics Department, Hospices Civils de LYON (HCL), University Hospital, East Pathology Center, LYON, B-A3, 59 Bld Pinel, 69677 BRON Cedex, France
| | - Stéphane Pinson
- Genetics Department, Hospices Civils de LYON (HCL), University Hospital, East Pathology Center, LYON, B-A3, 59 Bld Pinel, 69677 BRON Cedex, France
| | - Abderrazzaq Bentaher
- Inflammation & Immunity of the Respiratory Epithelium - EA7426 (PI3) – South Medical University Hospital – Lyon 1 Claude Bernard University, 165 Chemin du Grand Revoyet, 69310 Pierre-Bénite, France
| | - Serge Lebecque
- Cancer Research Center, INSERM U-1052, CNRS 5286, 69008 Lyon, France
| | - Harriet Corvol
- Pediatric pulmonology and Reference Center for rare lung diseases RespiRare, Hôpital Trousseau, AP-HP, INSERM UMR-S938, Sorbonne University, Paris, France
| | - Rola Abou Taam
- Pediatric pulmonology and Reference Center for rare lung diseases RespiRare, Hôpital Necker, Paris, France
| | - Véronique Houdouin
- Pediatric pulmonology and Reference Center for rare lung diseases RespiRare, Hôpital Robert Debré, INSERM U-1142, University Paris Diderot VII, Paris, France
| | - Claire Bardel
- Department of biostatistics, University Hospital, Hospices Civils de LYON (HCL), Lyon, France
| | - Pascal Roy
- Department of biostatistics, University Hospital, Hospices Civils de LYON (HCL), Lyon, France
| | - Gilles Devouassoux
- Department of Pulmonology, University Hospital, Hôpital Croix Rousse, Lyon, France
| | - Vincent Cottin
- Department of Pulmonology, University Hospital, Hôpital Louis Pradel, Lyon, France
| | - Pascal Seve
- Department of Internal medicine, University Hospital, Hôpital Croix Rousse, Lyon, France
| | | | - Clarice X. Lim
- Medical University of Vienna, Center for Pathobiochemistry and Genetics, Institute of Medical Genetics, Währinger Straße 10, 1090 Vienna, Austria
| | - Thomas Weichhart
- Medical University of Vienna, Center for Pathobiochemistry and Genetics, Institute of Medical Genetics, Währinger Straße 10, 1090 Vienna, Austria
| | - Dominique Valeyre
- EA2363, University Paris 13, COMUE Sorbonne-Paris-Cité, 74 rue Marcel Cachin, 93009 Bobigny, France
- Assistance Publique Hôpitaux de Paris, Department of Pulmonology, Avicenne University Hospital, 93009 Bobigny, France
| | - Yves Pacheco
- Inflammation & Immunity of the Respiratory Epithelium - EA7426 (PI3) – South Medical University Hospital – Lyon 1 Claude Bernard University, 165 Chemin du Grand Revoyet, 69310 Pierre-Bénite, France
| | - Annick Clement
- AP-HP Pediatric pulmonology and Reference Center for rare lung diseases RespiRare, Hôpital Trousseau, INSERM UMR-S933, Sorbonne University, Paris, France
| | - Nadia Nathan
- AP-HP Pediatric pulmonology and Reference Center for rare lung diseases RespiRare, Hôpital Trousseau, INSERM UMR-S933, Sorbonne University, Paris, France
| | - in the frame of GSF (Groupe Sarcoïdose France)
- Genetics Department, Hospices Civils de LYON (HCL), University Hospital, East Pathology Center, LYON, B-A3, 59 Bld Pinel, 69677 BRON Cedex, France
- Department of biostatistics, University Hospital, Hospices Civils de LYON (HCL), Lyon, France
- Inflammation & Immunity of the Respiratory Epithelium - EA7426 (PI3) – South Medical University Hospital – Lyon 1 Claude Bernard University, 165 Chemin du Grand Revoyet, 69310 Pierre-Bénite, France
- Cancer Research Center, INSERM U-1052, CNRS 5286, 69008 Lyon, France
- Pediatric pulmonology and Reference Center for rare lung diseases RespiRare, Hôpital Trousseau, AP-HP, INSERM UMR-S938, Sorbonne University, Paris, France
- Pediatric pulmonology and Reference Center for rare lung diseases RespiRare, Hôpital Necker, Paris, France
- Pediatric pulmonology and Reference Center for rare lung diseases RespiRare, Hôpital Robert Debré, INSERM U-1142, University Paris Diderot VII, Paris, France
- Department of Pulmonology, University Hospital, Hôpital Croix Rousse, Lyon, France
- Department of Pulmonology, University Hospital, Hôpital Louis Pradel, Lyon, France
- Department of Internal medicine, University Hospital, Hôpital Croix Rousse, Lyon, France
- Histology and Tumor Biology, ER2 UPMC, Hôpital Tenon, Paris, France
- Medical University of Vienna, Center for Pathobiochemistry and Genetics, Institute of Medical Genetics, Währinger Straße 10, 1090 Vienna, Austria
- EA2363, University Paris 13, COMUE Sorbonne-Paris-Cité, 74 rue Marcel Cachin, 93009 Bobigny, France
- Assistance Publique Hôpitaux de Paris, Department of Pulmonology, Avicenne University Hospital, 93009 Bobigny, France
- AP-HP Pediatric pulmonology and Reference Center for rare lung diseases RespiRare, Hôpital Trousseau, INSERM UMR-S933, Sorbonne University, Paris, France
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De Santis M, Locati M, Selmi C. The elegance of a macrophage. Cell Mol Immunol 2018; 15:196-198. [PMID: 28757608 PMCID: PMC5843624 DOI: 10.1038/cmi.2017.64] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Accepted: 06/12/2017] [Indexed: 01/05/2023] Open
Affiliation(s)
- Maria De Santis
- Rheumatology and Clinical Immunology, Humanitas Research Hospital, Rozzano, Italy
| | - Massimo Locati
- Rheumatology and Clinical Immunology, Humanitas Research Hospital, Rozzano, Italy
- Laboratory of Leukocyte Biology, Humanitas Research Hospital, Rozzano, Italy
| | - Carlo Selmi
- Rheumatology and Clinical Immunology, Humanitas Research Hospital, Rozzano, Italy
- BIOMETRA Department, University of Milan, Milan, Italy
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19
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Pacheco Y, Ponchon M, Lebecque S, Calender A, Bernaudin JF, Valeyre D, Iglarz M, Strasser DS, Studer R, Freti D, Renno T, Bentaher A. Granulomatous lung inflammation is nanoparticle type-dependent. Exp Lung Res 2018; 44:25-39. [PMID: 29324063 DOI: 10.1080/01902148.2017.1412541] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
BACKGROUND Nanoparticles are increasingly suspected as a strong etiologic factor of granuloma formation. AIM OF THE STUDY The aim of our study was to compare lung inflammatory response and histology changes following exposure of mice to two widely used nanoparticles: carbon nanotubes (MWCNT) and cadmium-based nanoparticles (QDOT705) in an attempt to better our understanding of granulomatous inflammation. MATERIALS AND METHODS Various groups of mice were included: control mice and mice that were intranasally instilled with QDOT or MWCNT. At defined time points post-challenge, bronchoalveolar lavages (BALs) and lung tissues were collected to study inflammatory and histologic changes. RESULTS Analyses of lung BAL fluids and tissues of nanoparticles-challenged mice in comparison to controls found: (1) increased cellularity in BALs, (2) increase of total protein concentration, LDH activity and proteolytic activity in BALs; (3) patchy granulomas, (4) macrophages, CD3 ± T, Treg and B cell infiltration in granulomatous areas; and (5) altered regulation of key inflammatory mediators and receptors. Importantly, these changes were nanoparticle type-dependent. CONCLUSION Our work enhances understanding of nanoparticles-induced lung inflammatory and histological changes that result in granuloma formation. We provide compelling evidence that not only exposure to nanoparticles leads to granulomatous lung inflammation, but the severity of this latter is nanostructure type-dependent. Of importance, while nanotechnology has the potential to revolutionize various fields including medicine, nanoparticles form the potential for an entirely new lung health risk that it is necessary to take seriously into consideration by setting up and/or reinforcing adequate safety measures.
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Affiliation(s)
- Yves Pacheco
- a Inflammation and Immunity of the Respiratory Epithelium 1 - EA7426, Faculté de médecine Lyon Sud , UCBL1, Pierre Benite , France.,b Centre Hospitalier Lyon-Sud, Hospices Civils de Lyon2 , Pierre Benite , France
| | - Marine Ponchon
- a Inflammation and Immunity of the Respiratory Epithelium 1 - EA7426, Faculté de médecine Lyon Sud , UCBL1, Pierre Benite , France
| | - Serge Lebecque
- b Centre Hospitalier Lyon-Sud, Hospices Civils de Lyon2 , Pierre Benite , France.,c Centre de Recherche en Cancérologie de Lyon (CRCL) - U INSERM 10523 , Lyon , France
| | - Alain Calender
- a Inflammation and Immunity of the Respiratory Epithelium 1 - EA7426, Faculté de médecine Lyon Sud , UCBL1, Pierre Benite , France.,b Centre Hospitalier Lyon-Sud, Hospices Civils de Lyon2 , Pierre Benite , France
| | | | | | - Marc Iglarz
- e Actelion Pharmaceuticals Ltd5. , CH-4123 Allschwil , Switzerland
| | | | - Rolf Studer
- e Actelion Pharmaceuticals Ltd5. , CH-4123 Allschwil , Switzerland
| | - Diego Freti
- e Actelion Pharmaceuticals Ltd5. , CH-4123 Allschwil , Switzerland
| | - Toufiq Renno
- c Centre de Recherche en Cancérologie de Lyon (CRCL) - U INSERM 10523 , Lyon , France
| | - Abederrazzaq Bentaher
- a Inflammation and Immunity of the Respiratory Epithelium 1 - EA7426, Faculté de médecine Lyon Sud , UCBL1, Pierre Benite , France
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Mohan A, Malur A, McPeek M, Barna BP, Schnapp LM, Thomassen MJ, Gharib SA. Transcriptional survey of alveolar macrophages in a murine model of chronic granulomatous inflammation reveals common themes with human sarcoidosis. Am J Physiol Lung Cell Mol Physiol 2017; 314:L617-L625. [PMID: 29212802 DOI: 10.1152/ajplung.00289.2017] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
Mohan A, Malur A, McPeek M, Barna BP, Schnapp LM, Thomassen MJ, Gharib SA. Transcriptional survey of alveolar macrophages in a murine model of chronic granulomatous inflammation reveals common themes with human sarcoidosis. Am J Physiol Lung Cell Mol Physiol 314: L617-L625, 2018. First published December 6, 2017; doi: 10.1152/ajplung.00289.2017 . To advance our understanding of the pathobiology of sarcoidosis, we developed a multiwall carbon nanotube (MWCNT)-based murine model that shows marked histological and inflammatory signal similarities to this disease. In this study, we compared the alveolar macrophage transcriptional signatures of our animal model with human sarcoidosis to identify overlapping molecular programs. Whole genome microarrays were used to assess gene expression of alveolar macrophages in six MWCNT-exposed and six control animals. The results were compared with the transcriptional profiles of alveolar immune cells in 15 sarcoidosis patients and 12 healthy humans. Rigorous statistical methods were used to identify differentially expressed genes. To better elucidate activated pathways, integrated network and gene set enrichment analysis (GSEA) was performed. We identified over 1,000 differentially expressed between control and MWCNT mice. Gene ontology functional analysis showed overrepresentation of processes primarily involved in immunity and inflammation in MCWNT mice. Applying GSEA to both mouse and human samples revealed upregulation of 92 gene sets in MWCNT mice and 142 gene sets in sarcoidosis patients. Commonly activated pathways in both MWCNT mice and sarcoidosis included adaptive immunity, T-cell signaling, IL-12/IL-17 signaling, and oxidative phosphorylation. Differences in gene set enrichment between MWCNT mice and sarcoidosis patients were also observed. We applied network analysis to differentially expressed genes common between the MWCNT model and sarcoidosis to identify key drivers of disease. In conclusion, an integrated network and transcriptomics approach revealed substantial functional similarities between a murine model and human sarcoidosis particularly with respect to activation of immune-specific pathways.
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Affiliation(s)
- Arjun Mohan
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, Brody School of Medicine, East Carolina University , Greenville, North Carolina
| | - Anagha Malur
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, Brody School of Medicine, East Carolina University , Greenville, North Carolina
| | - Matthew McPeek
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, Brody School of Medicine, East Carolina University , Greenville, North Carolina
| | - Barbara P Barna
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, Brody School of Medicine, East Carolina University , Greenville, North Carolina
| | - Lynn M Schnapp
- Division of Pulmonary, Critical Care, Allergy and Sleep Medicine, Department of Medicine, Medical University of South Carolina , Charleston, South Carolina
| | - Mary Jane Thomassen
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, Brody School of Medicine, East Carolina University , Greenville, North Carolina
| | - Sina A Gharib
- Division of Pulmonary, Critical Care and Sleep Medicine, Computational Medicine Core, Center for Lung Biology, Department of Medicine, University of Washington , Seattle, Washington
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Ungprasert P, Crowson CS, Matteson EL. Characteristics and Long-Term Outcome of Neurosarcoidosis: A Population-Based Study from 1976-2013. Neuroepidemiology 2017; 48:87-94. [PMID: 28601860 DOI: 10.1159/000477300] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2017] [Accepted: 05/04/2017] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND/AIMS Neurosarcoidosis is a rare condition with serious health consequences. However, little is known about clinical characteristics and outcome of neurosarcoidosis in the community setting. METHODS Patients with neurosarcoidosis were identified from a previously described cohort of patients with incident sarcoidosis from Olmsted County, Minnesota, United States from 1976 to 2013 using individual medical record review. Data on clinical characteristics, treatment, and outcome were collected. RESULTS Neurological involvement by sarcoidosis occurred in 11 patients (3% of all patients with sarcoidosis). Cranial neuropathy was the most common type of neurological disease (5 patients; 45%) followed by peripheral neuropathy (3 patients; 27%), and meningitis (3 patients; 27%). Cerebrospinal fluid (CSF) pleocytosis and elevated CSF protein levels were observed in patients with meningitis, intramedullary spinal cord sarcoidosis, intracranial mass lesion and some patients with cranial neuropathy but were normal in patients with peripheral neuropathy. All patients received high-dose glucocorticoids as initial treatment and almost all responded to this therapy. Relapse after glucocorticoid dose reduction necessitated subsequent treatment with steroid-sparing agents in 4 patients. CONCLUSION Neurosarcoidosis is an uncommon manifestation of sarcoidosis. Neurosarcoidosis manifestations generally responded well to high-dose glucocorticoids in the majority of patients, but relapse was common.
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Affiliation(s)
- Patompong Ungprasert
- Division of Rheumatology, Department of Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
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22
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Development, remodeling and regeneration of the lung: coping with the structural and functional challenges of breathing. Cell Tissue Res 2017; 367:407-411. [DOI: 10.1007/s00441-016-2568-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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