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Tu Z, Liu M, Xu C, Wei Y, Lu T, Xiao Y, Li H, Zhang S, Xie X, Li J, Wen W. Functional 2D Nanoplatforms Alleviate Eosinophilic Chronic Rhinosinusitis by Modulating Eosinophil Extracellular Trap Formation. Adv Sci (Weinh) 2024:e2307800. [PMID: 38477549 DOI: 10.1002/advs.202307800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 01/23/2024] [Indexed: 03/14/2024]
Abstract
The therapeutic outcomes of patients with eosinophilic chronic rhinosinusitis (ECRS) remain unsatisfactory, largely because the underlying mechanisms of eosinophilic inflammation are uncertain. Here, it is shown that the nasal secretions of ECRS patients have high eosinophil extracellular trap (EET) and cell-free DNA (cfDNA) levels. Moreover, the cfDNA induced EET formation by activating toll-like receptor 9 (TLR9) signaling. After demonstrating that DNase I reduced eosinophilic inflammation by modulating EET formation, linear polyglycerol-amine (LPGA )-coated TiS2 nanosheets (TLPGA ) as functional 2D nanoplatforms with low cytotoxicity, mild protein adsorption, and increased degradation rate is developed. Due to the more flexible linear architecture, TLPGA exhibited higher cfDNA affinity than the TiS2 nanosheets coated with dendritic polyglycerol-amine (TDPGA ). TLPGA reduced cfDNA levels in the nasal secretions of ECRS patients while suppressing cfDNA-induced TLR9 activation and EET formation in vitro. TLPGA displayed exceptional biocompatibility, preferential nasal localization, and potent inflammation modulation in mice with eosinophilic inflammation. These results highlight the pivotal feature of the linear molecular architecture and 2D sheet-like nanostructure in the development of anti-inflammation nanoplatforms, which can be exploited for ECRS treatment.
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Affiliation(s)
- Zhaoxu Tu
- Department of Otolaryngology, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, 510655, China
- Department of Otolaryngology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, 510655, China
- Biomedical Innovation Center, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, 510655, China
| | - Ming Liu
- Department of Otolaryngology, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, 510655, China
- Biomedical Innovation Center, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, 510655, China
| | - Changyi Xu
- Biomedical Innovation Center, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, 510655, China
- Department of Clinical Laboratory, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, 510655, China
| | - Yi Wei
- Department of Otolaryngology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, 510655, China
| | - Tong Lu
- Department of Otolaryngology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, 510655, China
| | - Yongqiang Xiao
- ENT institute, Eye & ENT Hospital, Fudan University, Shanghai, 201114, China
| | - Hongxia Li
- Department of Otolaryngology, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, 510655, China
- Biomedical Innovation Center, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, 510655, China
| | - Shuaiyin Zhang
- Department of Otolaryngology, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, 510655, China
- Biomedical Innovation Center, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, 510655, China
| | - Xinran Xie
- Department of Otolaryngology, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, 510655, China
- Biomedical Innovation Center, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, 510655, China
| | - Jian Li
- Department of Otolaryngology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, 510655, China
| | - Weiping Wen
- Department of Otolaryngology, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, 510655, China
- Department of Otolaryngology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, 510655, China
- Biomedical Innovation Center, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, 510655, China
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Miyazaki O, Igarashi A, Sato K, Inoue S, Yokoyama R, Nakane M, Kodama S, Hasegawa R, Ueki S, Yaguchi T, Watanabe A, Watanabe M. Rapidly progressive mucus plugs in allergic bronchopulmonary mycosis. J Asthma 2024:1-6. [PMID: 38294863 DOI: 10.1080/02770903.2024.2312429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Accepted: 01/27/2024] [Indexed: 02/01/2024]
Abstract
INTRODUCTION Allergic bronchopulmonary mycosis (ABPM) is a chronic airway disease characterized by the presence of fungi that trigger allergic reactions and airway obstruction. Here, we present a unique case of ABPM in which a patient experienced sudden respiratory failure due to mucus plug-induced airway obstruction. The patient's life was saved by venovenous extracorporeal membrane oxygenation (VV-ECMO) and bronchoscopic removal of the plug. This case emphasizes the clinical significance of mucus plug-induced airway obstruction in the differential diagnosis of respiratory failure in patients with ABPM. CASE STUDY A 52-year-old female clerical worker with no smoking history, presented with dyspnea. CT scan revealed mucus plugs in both lungs. Despite treatment, the dyspnea progressed rapidly to respiratory failure, leading to VV-ECMO placement. RESULTS CT revealed bronchial wall thickening, obstruction, and extensive atelectasis. Bronchoscopy revealed extensive mucus plugs that were successfully removed within two days. The patient's respiratory status significantly improved. Follow-up CT revealed no recurrence. Fungal cultures identified Schizophyllum commune, confirming ABPM. Histological examination of the mucus plugs revealed aggregated eosinophils, eosinophil granules, and Charcot-Leyden crystals. Galectin-10 and major basic protein (MBP) staining supported these findings. Eosinophil extracellular traps (EETs) and eosinophil cell death (ETosis), which contribute to mucus plug formation, were identified by citrullinated histone H3 staining. CONCLUSION Differentiating between asthma exacerbation and mucus plug-induced airway obstruction in patients with ABPM and those with acute respiratory failure is challenging. Prompt evaluation of mucous plugs and atelectasis using CT and timely decision to introduce ECMO and bronchoscopic mucous plug removal are required.
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Affiliation(s)
- Osamu Miyazaki
- Department of Cardiology, Pulmonology, and Nephrology, Faculty Medicine, Yamagata University, Yamagata, Japan
| | - Akira Igarashi
- Department of Cardiology, Pulmonology, and Nephrology, Faculty Medicine, Yamagata University, Yamagata, Japan
| | - Kento Sato
- Department of Cardiology, Pulmonology, and Nephrology, Faculty Medicine, Yamagata University, Yamagata, Japan
| | - Sumito Inoue
- Department of Cardiology, Pulmonology, and Nephrology, Faculty Medicine, Yamagata University, Yamagata, Japan
| | - Ryuto Yokoyama
- Department of Emergency and Critical Care Medicine, Faculty Medicine, Yamagata University, Yamagata, Japan
| | - Masaki Nakane
- Department of Emergency and Critical Care Medicine, Faculty Medicine, Yamagata University, Yamagata, Japan
| | - Sahoko Kodama
- Department of General Internal Medicine and Clinical Laboratory Medicine, Akita University Graduate School of Medicine, Akita, Japan
| | - Ryo Hasegawa
- Department of General Internal Medicine and Clinical Laboratory Medicine, Akita University Graduate School of Medicine, Akita, Japan
| | - Shigeharu Ueki
- Department of General Internal Medicine and Clinical Laboratory Medicine, Akita University Graduate School of Medicine, Akita, Japan
| | - Takashi Yaguchi
- The Medical Mycology Research Center, Chiba University, Chiba, Japan
| | - Akira Watanabe
- The Medical Mycology Research Center, Chiba University, Chiba, Japan
| | - Masafumi Watanabe
- Department of Cardiology, Pulmonology, and Nephrology, Faculty Medicine, Yamagata University, Yamagata, Japan
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Appelgren D, O’Sullivan KM. Editorial: The role of leukocyte extracellular traps in Inflammation and autoimmunity. Front Immunol 2022; 13:1075026. [PMID: 36389784 PMCID: PMC9664385 DOI: 10.3389/fimmu.2022.1075026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Accepted: 10/24/2022] [Indexed: 01/25/2023] Open
Affiliation(s)
- Daniel Appelgren
- Department of Health, Medicine and Caring Sciences, Linköping University, Linköping, Sweden
| | - Kim Maree O’Sullivan
- Centre for Inflammatory Diseases, Department of Medicine, Monash University, Melbourne, VIC, Australia,*Correspondence: Kim Maree O’Sullivan,
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Rodrigo-Muñoz JM, Gil-Martínez M, Sastre B, del Pozo V. Emerging Evidence for Pleiotropism of Eosinophils. Int J Mol Sci 2021; 22:ijms22137075. [PMID: 34209213 PMCID: PMC8269185 DOI: 10.3390/ijms22137075] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 06/25/2021] [Accepted: 06/27/2021] [Indexed: 02/08/2023] Open
Abstract
Eosinophils are complex granulocytes with the capacity to react upon diverse stimuli due to their numerous and variable surface receptors, which allows them to respond in very different manners. Traditionally believed to be only part of parasitic and allergic/asthmatic immune responses, as scientific studies arise, the paradigm about these cells is continuously changing, adding layers of complexity to their roles in homeostasis and disease. Developing principally in the bone marrow by the action of IL-5 and granulocyte macrophage colony-stimulating factor GM-CSF, eosinophils migrate from the blood to very different organs, performing multiple functions in tissue homeostasis as in the gastrointestinal tract, thymus, uterus, mammary glands, liver, and skeletal muscle. In organs such as the lungs and gastrointestinal tract, eosinophils are able to act as immune regulatory cells and also to perform direct actions against parasites, and bacteria, where novel mechanisms of immune defense as extracellular DNA traps are key factors. Besides, eosinophils, are of importance in an effective response against viral pathogens by their nuclease enzymatic activity and have been lately described as involved in severe acute respiratory syndrome coronavirus SARS-CoV-2 immunity. The pleiotropic role of eosinophils is sustained because eosinophils can be also detrimental to human physiology, for example, in diseases like allergies, asthma, and eosinophilic esophagitis, where exosomes can be significant pathophysiologic units. These eosinophilic pathologies, require specific treatments by eosinophils control, such as new monoclonal antibodies like mepolizumab, reslizumab, and benralizumab. In this review, we describe the roles of eosinophils as effectors and regulatory cells and their involvement in pathological disorders and treatment.
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Affiliation(s)
- José M. Rodrigo-Muñoz
- Immunoallergy Laboratory, Immunology Department, Instituto de Investigación Sanitaria Fundación Jiménez Díaz (IIS-FJD), Avenida Reyes Católicos, 28040 Madrid, Spain; (J.M.R.-M.); (M.G.-M.)
- CIBER de Enfermedades Respiratorias (CIBERES), Av. de Monforte de Lemos, 28029 Madrid, Spain
| | - Marta Gil-Martínez
- Immunoallergy Laboratory, Immunology Department, Instituto de Investigación Sanitaria Fundación Jiménez Díaz (IIS-FJD), Avenida Reyes Católicos, 28040 Madrid, Spain; (J.M.R.-M.); (M.G.-M.)
| | - Beatriz Sastre
- Immunoallergy Laboratory, Immunology Department, Instituto de Investigación Sanitaria Fundación Jiménez Díaz (IIS-FJD), Avenida Reyes Católicos, 28040 Madrid, Spain; (J.M.R.-M.); (M.G.-M.)
- CIBER de Enfermedades Respiratorias (CIBERES), Av. de Monforte de Lemos, 28029 Madrid, Spain
- Correspondence: (B.S.); (V.d.P.)
| | - Victoria del Pozo
- Immunoallergy Laboratory, Immunology Department, Instituto de Investigación Sanitaria Fundación Jiménez Díaz (IIS-FJD), Avenida Reyes Católicos, 28040 Madrid, Spain; (J.M.R.-M.); (M.G.-M.)
- CIBER de Enfermedades Respiratorias (CIBERES), Av. de Monforte de Lemos, 28029 Madrid, Spain
- Medicine Department, Universidad Autónoma de Madrid, 28029 Madrid, Spain
- Correspondence: (B.S.); (V.d.P.)
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5
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Silva JDC, Thompson-Souza GDA, Barroso MV, Neves JS, Figueiredo RT. Neutrophil and Eosinophil DNA Extracellular Trap Formation: Lessons From Pathogenic Fungi. Front Microbiol 2021; 12:634043. [PMID: 33679665 PMCID: PMC7929991 DOI: 10.3389/fmicb.2021.634043] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Accepted: 02/01/2021] [Indexed: 12/23/2022] Open
Abstract
Fungal infections represent a worldwide health problem. Fungal pathogens are responsible for a variety of conditions, including superficial diseases, allergic pathologies and potentially lethal invasive infections. Neutrophils and eosinophils have been implicated as effector cells in several pathologies. Neutrophils are major effector cells involved in the control of fungal infections and exhibit a plethora of antifungal mechanisms, such as phagocytosis, reactive oxygen species production, degranulation, extracellular vesicle formation, and DNA extracellular trap (ET) release. Eosinophils are polymorphonuclear cells classically implicated as effector cells in the pathogenesis of allergic diseases and helminthic infections, although their roles as immunomodulatory players in both innate and adaptive immunity are currently recognized. Eosinophils are also endowed with antifungal activities and are abundantly found in allergic conditions associated with fungal colonization and sensitization. Neutrophils and eosinophils have been demonstrated to release their nuclear and mitochondrial DNA in response to many pathogens and pro-inflammatory stimuli. ETs have been implicated in the killing and control of many pathogens, as well as in promoting inflammation and tissue damage. The formation of ETs by neutrophils and eosinophils has been described in response to pathogenic fungi. Here, we provide an overview of the mechanisms involved in the release of neutrophil and eosinophil ETs in response to fungal pathogens. General implications for understanding the formation of ETs and the roles of ETs in fungal infections are discussed.
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Affiliation(s)
- Juliana da Costa Silva
- Institute of Microbiology Paulo de Góes, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | | | - Marina Valente Barroso
- Institute of Microbiology Paulo de Góes, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.,Institute of Biomedical Sciences, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Josiane Sabbadini Neves
- Institute of Biomedical Sciences, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
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Germic N, Fettrelet T, Stojkov D, Hosseini A, Horn MP, Karaulov A, Simon D, Yousefi S, Simon HU. The Release Kinetics of Eosinophil Peroxidase and Mitochondrial DNA Is Different in Association with Eosinophil Extracellular Trap Formation. Cells 2021; 10:cells10020306. [PMID: 33546138 PMCID: PMC7913244 DOI: 10.3390/cells10020306] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Revised: 01/29/2021] [Accepted: 01/30/2021] [Indexed: 01/03/2023] Open
Abstract
Eosinophils are a subset of granulocytes characterized by a high abundance of specific granules in their cytoplasm. To act as effector cells, eosinophils degranulate and form eosinophil extracellular traps (EETs), which contain double-stranded DNA (dsDNA) co-localized with granule proteins. The exact molecular mechanism of EET formation remains unknown. Although the term “EET release” has been used in scientific reports, it is unclear whether EETs are pre-formed in eosinophils and subsequently released. Moreover, although eosinophil degranulation has been extensively studied, a precise time-course of granule protein release has not been reported until now. In this study, we investigated the time-dependent release of eosinophil peroxidase (EPX) and mitochondrial DNA (mtDNA) following activation of both human and mouse eosinophils. Unexpectedly, maximal degranulation was already observed within 1 min with no further change upon complement factor 5 (C5a) stimulation of interleukin-5 (IL-5) or granulocyte/macrophage colony-stimulating factor (GM-CSF)-primed eosinophils. In contrast, bulk mtDNA release in the same eosinophil populations occurred much slower and reached maximal levels between 30 and 60 min. Although no single-cell analyses have been performed, these data suggest that the molecular pathways leading to degranulation and mtDNA release are at least partially different. Moreover, based on these data, it is likely that the association between the mtDNA scaffold and granule proteins in the process of EET formation occurs in the extracellular space.
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Affiliation(s)
- Nina Germic
- Institute of Pharmacology, University of Bern, Inselspital, INO-F, CH-3010 Bern, Switzerland; (N.G.); (T.F.); (D.S.); (A.H.); (S.Y.)
| | - Timothée Fettrelet
- Institute of Pharmacology, University of Bern, Inselspital, INO-F, CH-3010 Bern, Switzerland; (N.G.); (T.F.); (D.S.); (A.H.); (S.Y.)
- Department of Biochemistry, University of Lausanne, CH-1066 Epalinges, Switzerland
| | - Darko Stojkov
- Institute of Pharmacology, University of Bern, Inselspital, INO-F, CH-3010 Bern, Switzerland; (N.G.); (T.F.); (D.S.); (A.H.); (S.Y.)
| | - Aref Hosseini
- Institute of Pharmacology, University of Bern, Inselspital, INO-F, CH-3010 Bern, Switzerland; (N.G.); (T.F.); (D.S.); (A.H.); (S.Y.)
| | - Michael P. Horn
- Department of Clinical Chemistry, Inselspital, Bern University Hospital, University of Bern, CH-3010 Bern, Switzerland;
| | - Alexander Karaulov
- Department of Clinical Immunology and Allergology, Sechenov University, 119991 Moscow, Russia;
| | - Dagmar Simon
- Department of Dermatology, Inselspital, Bern University Hospital, University of Bern, CH-3010 Bern, Switzerland;
| | - Shida Yousefi
- Institute of Pharmacology, University of Bern, Inselspital, INO-F, CH-3010 Bern, Switzerland; (N.G.); (T.F.); (D.S.); (A.H.); (S.Y.)
| | - Hans-Uwe Simon
- Institute of Pharmacology, University of Bern, Inselspital, INO-F, CH-3010 Bern, Switzerland; (N.G.); (T.F.); (D.S.); (A.H.); (S.Y.)
- Department of Clinical Immunology and Allergology, Sechenov University, 119991 Moscow, Russia;
- Laboratory of Molecular Immunology, Institute of Fundamental Medicine and Biology, Kazan Federal University, 420012 Kazan, Russia
- Correspondence: ; Tel.: +41-31-632-3281
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Silveira JS, Antunes GL, Kaiber DB, da Costa MS, Ferreira FS, Marques EP, Schmitz F, Gassen RB, Breda RV, Wyse ATS, Stein RT, Pitrez PM, da Cunha AA. Autophagy induces eosinophil extracellular traps formation and allergic airway inflammation in a murine asthma model. J Cell Physiol 2019; 235:267-280. [PMID: 31206674 DOI: 10.1002/jcp.28966] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2018] [Revised: 05/10/2019] [Accepted: 05/28/2019] [Indexed: 12/14/2022]
Abstract
Studies have shown autophagy participation in the immunopathology of inflammatory diseases. However, autophagy role in asthma and in eosinophil extracellular traps (EETs) release is poorly understood. Here, we attempted to investigate the autophagy involvement in EETs release and in lung inflammation in an experimental asthma model. Mice were sensitized with ovalbumin (OVA), followed by OVA challenge. Before the challenge with OVA, mice were treated with an autophagy inhibitor, 3-methyladenine (3-MA). We showed that 3-MA treatment decreases the number of eosinophils, eosinophil peroxidase (EPO) activity, goblet cells hyperplasia, proinflammatory cytokines, and nuclear factor kappa B (NFκB) p65 immunocontent in the lung. Moreover, 3-MA was able to improve oxidative stress, mitochondrial energy metabolism, and Na+ , K+ -ATPase activity. We demonstrated that treatment with autophagy inhibitor 3-MA reduced EETs formation in the airway. On the basis of our results, 3-MA treatment can be an interesting alternative for reducing lung inflammation, oxidative stress, mitochondrial damage, and EETs formation in asthma.
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Affiliation(s)
- Josiane Silva Silveira
- Laboratory of Pediatric Respirology, Infant Center, School of Medicine, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Géssica Luana Antunes
- Laboratory of Pediatric Respirology, Infant Center, School of Medicine, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Daniela Benvenutti Kaiber
- Laboratory of Pediatric Respirology, Infant Center, School of Medicine, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Mariana Severo da Costa
- Laboratory of Pediatric Respirology, Infant Center, School of Medicine, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Fernanda Silva Ferreira
- Laboratory of Neuroprotection and Neurometabolic Disease, Department of Biochemistry, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Eduardo Peil Marques
- Laboratory of Neuroprotection and Neurometabolic Disease, Department of Biochemistry, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Felipe Schmitz
- Laboratory of Neuroprotection and Neurometabolic Disease, Department of Biochemistry, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Rodrigo Benedetti Gassen
- Laboratory of Cellular and Molecular Immunology, School of Science, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Ricardo Vaz Breda
- School of Medicine, Instituto do Cérebro do Rio Grande do Sul, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Angela T S Wyse
- Laboratory of Neuroprotection and Neurometabolic Disease, Department of Biochemistry, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Renato Tetelbom Stein
- Laboratory of Pediatric Respirology, Infant Center, School of Medicine, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Paulo Márcio Pitrez
- Laboratory of Pediatric Respirology, Infant Center, School of Medicine, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Aline Andrea da Cunha
- Laboratory of Pediatric Respirology, Infant Center, School of Medicine, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
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Giusti D, Bini E, Terryn C, Didier K, Le Jan S, Gatouillat G, Durlach A, Nesmond S, Muller C, Bernard P, Antonicelli F, Pham BN. NET Formation in Bullous Pemphigoid Patients With Relapse Is Modulated by IL-17 and IL-23 Interplay. Front Immunol 2019; 10:701. [PMID: 31019514 PMCID: PMC6458298 DOI: 10.3389/fimmu.2019.00701] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Accepted: 03/14/2019] [Indexed: 12/13/2022] Open
Abstract
Background: DNA extracellular traps (ETs), released by neutrophils (NETs), or eosinophils (EETs), play a pathogenic role in several autoimmune disorders. However, to date, NETs have never been investigated in bullous pemphigoid (BP) with respect to clinical and immunological activities, both at baseline and at time of relapse which have been characterized with specific IL-17 and IL-23 patterns. Objective: We sought to assess whether ETs were associated with BP as well as the relative contribution of IL-17 axis cytokines to NET induction. Methods: Skin biopsy specimens were obtained from 11 patients with BP. Immuno-detection of neutrophils and eosinophils combined to DNA staining allowed us to investigate the in-situ presence of NETs and EETs using confocal scanning microscopy. NETs release was evaluated ex vivo by stimulating polymorphonuclear cells from BP patients with BP biological fluids in presence of IL-17A and IL-23 or of glucocorticoids. Results: At baseline, ETs were observed in BP lesions at the site of dermal-epidermal cleavage. Despite an important infiltrate of eosinophils, ETs were essentially associated with neutrophils in situ and were not related to BP clinical activity at diagnosis. In situ observation of NETs was associated in 6 among 8 patients with serum capacity of NET induction. Notably both blister fluid and sera from BP patients at diagnosis and at time of relapse could induce NET formation ex vivo. In contrast, a longitudinal investigation showed a decrease of NET formation with time of treatment in patients undergoing remission. Mimicking relapse, complementation of sera from BP patients with ongoing remission with either IL-17A or IL-23 increased NET formation. Conversely, IL-17A inhibited NET formation induced by serum from BP patients with relapse supplemented or not with IL-23. Finally, glucocorticoids also inhibited NET formation ex vivo in BP. Conclusion: NET formation is an associated phenomenon with BP. Furthermore, we showed that IL-23 favored NET formation, whereas the effects of IL-17A are environment dependent. Indeed, IL-17A displayed a protective effect on NET formation when associated with IL-23, showing for the first-time differential effects of these two cytokines in BP.
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Affiliation(s)
- Delphine Giusti
- Laboratory of Dermatology, Faculty of Medicine of Reims, University of Champagne-Ardenne, Reims, France.,Laboratory of Immunology, Reims University Hospital, University of Champagne-Ardenne, Reims, France
| | - Estela Bini
- Laboratory of Dermatology, Faculty of Medicine of Reims, University of Champagne-Ardenne, Reims, France
| | - Christine Terryn
- PICT Platform, University of Reims Champagne-Ardenne, Reims, France
| | - Kevin Didier
- Laboratory of Dermatology, Faculty of Medicine of Reims, University of Champagne-Ardenne, Reims, France
| | - Sébastien Le Jan
- Laboratory of Dermatology, Faculty of Medicine of Reims, University of Champagne-Ardenne, Reims, France
| | - Grégory Gatouillat
- Laboratory of Dermatology, Faculty of Medicine of Reims, University of Champagne-Ardenne, Reims, France.,Laboratory of Immunology, Reims University Hospital, University of Champagne-Ardenne, Reims, France
| | - Anne Durlach
- Laboratory of Pathology, Reims University Hospital, Reims, France
| | - Stéphane Nesmond
- Laboratory of Dermatology, Faculty of Medicine of Reims, University of Champagne-Ardenne, Reims, France
| | - Celine Muller
- Laboratory of Dermatology, Faculty of Medicine of Reims, University of Champagne-Ardenne, Reims, France
| | - Philippe Bernard
- Laboratory of Dermatology, Faculty of Medicine of Reims, University of Champagne-Ardenne, Reims, France.,Department of Dermatology, Reims University Hospital, University of Champagne-Ardenne, Reims, France
| | - Frank Antonicelli
- Laboratory of Dermatology, Faculty of Medicine of Reims, University of Champagne-Ardenne, Reims, France.,Department of Biological Sciences, Immunology, UFR Odontology, University of Reims Champagne-Ardenne, Reims, France
| | - Bach Nga Pham
- Laboratory of Dermatology, Faculty of Medicine of Reims, University of Champagne-Ardenne, Reims, France.,Laboratory of Immunology, Reims University Hospital, University of Champagne-Ardenne, Reims, France
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Zhang N, Van Crombruggen K, Gevaert E, Bachert C. Barrier function of the nasal mucosa in health and type-2 biased airway diseases. Allergy 2016; 71:295-307. [PMID: 26606240 DOI: 10.1111/all.12809] [Citation(s) in RCA: 84] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/17/2015] [Indexed: 12/30/2022]
Abstract
The mucosal lining of the upper airways represents the outer surface of the body to the ambient air and its contents and is prepared for it as the first line of defense. Apart from the well-described physical barrier and the mucociliary clearance, a variety of systems, including the airway microbiome, antimicrobial proteins, damage-associated molecular patterns, innate lymphoid cells, epithelial-derived cytokines and chemokines, and finally the adaptive immune system, as well as eosinophils as newly appreciated defense cells form different levels of protection against and response to any possible intruder. Of interest especially for allergic airway disease, mucosal germs might not just elicit a classical Th1/Th17-biased inflammatory response, but may directly induce a type-2 mucosal inflammation. Innovative therapeutic interventions may be possible at different levels also; however, whether modulations of the innate or adaptive immune responses will finally be more successful, and how the correction of the adaptive immune response might impact on the innate side, will be determined in the near future.
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Affiliation(s)
- N. Zhang
- Upper Airway Research Laboratory; Department of Otorhinolaryngology; Ghent University Hospital; Ghent Belgium
| | - K. Van Crombruggen
- Upper Airway Research Laboratory; Department of Otorhinolaryngology; Ghent University Hospital; Ghent Belgium
| | - E. Gevaert
- Upper Airway Research Laboratory; Department of Otorhinolaryngology; Ghent University Hospital; Ghent Belgium
| | - C. Bachert
- Upper Airway Research Laboratory; Department of Otorhinolaryngology; Ghent University Hospital; Ghent Belgium
- Division of ENT diseases; CLINTEC; Karolinska Institute; Stockholm Sweden
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Simon D, Radonjic-Hösli S, Straumann A, Yousefi S, Simon HU. Active eosinophilic esophagitis is characterized by epithelial barrier defects and eosinophil extracellular trap formation. Allergy 2015; 70:443-52. [PMID: 25620273 DOI: 10.1111/all.12570] [Citation(s) in RCA: 98] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/25/2014] [Indexed: 12/31/2022]
Abstract
BACKGROUND Eosinophilic esophagitis (EoE) exhibits esophageal dysfunction owing to an eosinophil-predominant inflammation. Activated eosinophils generate eosinophil extracellular traps (EETs) able to kill bacteria. There is evidence of an impaired barrier function in EoE that might allow pathogens to invade the esophagus. This study aimed to investigate the presence and distribution of EETs in esophageal tissues from EoE patients and their association with possible epithelial barrier defects. METHODS Anonymized tissue samples from 18 patients with active EoE were analyzed. The presence of DNA nets associated with eosinophil granule proteins forming EETs and the expression of filaggrin, the protease inhibitor lympho-epithelial Kazal-type-related inhibitor (LEKTI), antimicrobial peptides, and cytokines were evaluated by confocal microscopy following immune fluorescence staining techniques. RESULTS Eosinophil extracellular trap formation occurred frequently and was detected in all EoE samples correlating with the numbers of infiltrating eosinophils. While the expression of both filaggrin and LEKTI was reduced, epithelial antimicrobial peptides (human beta-defensin-2, human beta-defensin-3, cathelicidin LL-37, psoriasin) and cytokines (TSLP, IL-25, IL-32, IL-33) were elevated in EoE as compared to normal esophageal tissues. There was a significant correlation between EET formation and TSLP expression (P = 0.02) as well as psoriasin expression (P = 0.016). On the other hand, a significant negative correlation was found between EET formation and LEKTI expression (P = 0.016). CONCLUSION Active EoE exhibits the presence of EETs. Indications of epithelial barrier defects in association with epithelial cytokines are also present which may have contributed to the activation of eosinophils. The formation of EETs could serve as a firewall against the invasion of pathogens.
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Affiliation(s)
- D. Simon
- Department of Dermatology; Inselspital, Bern University Hospital; Bern Switzerland
| | | | | | - S. Yousefi
- Institute of Pharmacology; University of Bern; Bern Switzerland
| | - H.-U. Simon
- Institute of Pharmacology; University of Bern; Bern Switzerland
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