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Shen K, Lin J. Unraveling the Molecular Landscape of Neutrophil Extracellular Traps in Severe Asthma: Identification of Biomarkers and Molecular Clusters. Mol Biotechnol 2024:10.1007/s12033-024-01164-z. [PMID: 38801616 DOI: 10.1007/s12033-024-01164-z] [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: 12/05/2023] [Accepted: 04/08/2024] [Indexed: 05/29/2024]
Abstract
Neutrophil extracellular traps (NETs) play a central role in chronic airway diseases. However, the precise genetic basis linking NETs to the development of severe asthma remains elusive. This study aims to unravel the molecular characterization of NET-related genes (NRGs) in severe asthma and to reliably identify relevant molecular clusters and biomarkers. We analyzed RNA-seq data from the Gene Expression Omnibus database. Interaction analysis revealed fifty differentially expressed NRGs (DE-NRGs). Subsequently, the non-negative matrix factorization algorithm categorized samples from severe asthma patients. A machine learning algorithm then identified core NRGs that were highly associated with severe asthma. DE-NRGs were correlated and subjected to protein-protein interaction analysis. Unsupervised consensus clustering of the core gene expression profiles delineated two distinct clusters (C1 and C2) characterizing severe asthma. Functional enrichment highlighted immune-related pathways in the C2 cluster. Core gene selection included the Boruta algorithm, support vector machine, and least absolute contraction and selection operator algorithms. Diagnostic performance was assessed by receiver operating characteristic curves. This study addresses the molecular characterization of NRGs in adult severe asthma, revealing distinct clusters based on DE-NRGs. Potential biomarkers (TIMP1 and NFIL3) were identified that may be important for early diagnosis and treatment of severe asthma.
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Affiliation(s)
- Kunlu Shen
- National Center for Respiratory Medicine, National Clinical Research Center for Respiratory Diseases, Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, No. 2, East Yinghua Road, Chaoyang District, Beijing, 100029, China
- Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
| | - Jiangtao Lin
- National Center for Respiratory Medicine, National Clinical Research Center for Respiratory Diseases, Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, No. 2, East Yinghua Road, Chaoyang District, Beijing, 100029, China.
- Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China.
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Ni Q, Li G, Chen Y, Bao C, Wang T, Li Y, Ruan X, Wang H, Sun W. LECs regulate neutrophil clearance through IL-17RC/CMTM4/NF-κB axis at sites of inflammation or infection. Mucosal Immunol 2024:S1933-0219(24)00044-8. [PMID: 38754839 DOI: 10.1016/j.mucimm.2024.05.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 04/24/2024] [Accepted: 05/08/2024] [Indexed: 05/18/2024]
Abstract
The lymphatic system plays a vital role in the regulation of tissue fluid balance and the immune response to inflammation or infection. The effects of lymphatic endothelial cells (LECs) on the regulation of neutrophil migration have not been well-studied. In three murine models: imiquimod-induced skin inflammation, Staphylococcus aureus-induced skin infection, and ligature-induced periodontitis, we show that numerous neutrophils migrate from inflamed or infected tissues to the draining lymph nodes via lymphatic vessels. Moreover, inflamed or infected tissues express a high level of interleukin (IL)-17A and tumor necrosis factor (TNF)-α, simultaneously with a significant increase in the release of neutrophil attractors, including CXCL1, CXCL2, CXCL3, and CXCL5. Importantly, in vitro stimulation of LECs with IL-17A plus TNF-α synergistically promoted these chemokine secretions. Mechanistically, tetra-transmembrane protein CMTM4 directly binds to IL-17RC in LECs. IL-17A plus TNF-α stimulates CXC chemokine secretion by promoting nuclear factor-kappa B signaling. In contrast, knockdown of CMTM4 abrogates IL-17A plus TNF-α activated nuclear factor-kappa B signaling pathways. Lastly, the local administration of adeno-associated virus for CMTM4 in Prox1-CreERT2 mice, mediating LEC-specific overexpression of CMTM4, promotes the drainage of neutrophils by LECs and alleviates immune pathological responses. Thus, our findings reveal the vital role of LECs-mediated neutrophil attraction and clearance at sites of inflammation or infection.
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Affiliation(s)
- Qiaoqi Ni
- Department of Basic Science of Stomatology, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, China
| | - Gen Li
- Department of Orthodontics, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, China
| | - Yue Chen
- Department of Basic Science of Stomatology, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, China; State Key Laboratory Cultivation Base of Research, Prevention and Treatment for Oral Diseases, Nanjing, China
| | - Chen Bao
- Department of Basic Science of Stomatology, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, China
| | - Ting Wang
- Department of Orthodontics, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, China
| | - Yingyi Li
- Department of Orthodontics, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, China
| | - Xiaolei Ruan
- Department of Orthodontics, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, China
| | - Hua Wang
- Department of Orthodontics, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, China; State Key Laboratory Cultivation Base of Research, Prevention and Treatment for Oral Diseases, Nanjing, China
| | - Wen Sun
- Department of Basic Science of Stomatology, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, China; State Key Laboratory Cultivation Base of Research, Prevention and Treatment for Oral Diseases, Nanjing, China; Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, China.
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Vellingiri V, Balaji Ragunathrao VA, Joshi JC, Akhter MZ, Anwar M, Banerjee S, Dudek S, Tsukasaki Y, Pinho S, Mehta D. Endothelial ERG programs neutrophil transcriptome for sustained anti-inflammatory vascular niche. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.05.02.591799. [PMID: 38746216 PMCID: PMC11092576 DOI: 10.1101/2024.05.02.591799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2024]
Abstract
Neutrophils (PMNs) reside as a marginated pool within the vasculature, ready for deployment during infection. However, how endothelial cells (ECs) control PMN extravasation and activation to strengthen tissue homeostasis remains ill-defined. Here, we found that the vascular ETS-related gene (ERG) is a generalized mechanism regulating PMN activity in preclinical tissue injury models and human patients. We show that ERG loss in ECs rewired PMN-transcriptome, enriched for genes associated with the CXCR2-CXCR4 signaling. Rewired PMNs compromise mice survival after pneumonia and induced lung vascular inflammatory injury following adoptive transfer into naïve mice, indicating their longevity and inflammatory activity memory. Mechanistically, EC-ERG restricted PMN extravasation and activation by upregulating the deubiquitinase A20 and downregulating the NFκB-IL8 cascade. Rescuing A20 in EC-Erg -/- endothelium or suppressing PMN-CXCR2 signaling rescued EC control of PMN activation. Findings deepen our understanding of EC control of PMN-mediated inflammation, offering potential avenues for targeting various inflammatory diseases. Highlights ERG regulates trans-endothelial neutrophil (PMN) extravasation, retention, and activationLoss of endothelial (EC) ERG rewires PMN-transcriptomeAdopted transfer of rewired PMNs causes inflammation in a naïve mouse ERG transcribes A20 and suppresses CXCR2 function to inactivate PMNs. In brief/blurb The authors investigated how vascular endothelial cells (EC) control polymorphonuclear neutrophil (PMN) extravasation, retention, and activation to strengthen tissue homeostasis. They showed that EC-ERG controls PMN transcriptome into an anti-adhesive and anti-inflammatory lineage by synthesizing A20 and suppressing PMNs-CXCR2 signaling, defining EC-ERG as a target for preventing neutrophilic inflammatory injury.
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King PT, Dousha L. Neutrophil Extracellular Traps and Respiratory Disease. J Clin Med 2024; 13:2390. [PMID: 38673662 PMCID: PMC11051312 DOI: 10.3390/jcm13082390] [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: 02/28/2024] [Revised: 03/26/2024] [Accepted: 04/17/2024] [Indexed: 04/28/2024] Open
Abstract
Extracellular traps made by neutrophils (NETs) and other leukocytes such as macrophages and eosinophils have a key role in the initial immune response to infection but are highly inflammatory and may contribute to tissue damage. They are particularly relevant to lung disease, with the pulmonary anatomy facilitating their ability to fully extend into the airways/alveolar space. There has been a rapid expansion in the number of published studies demonstrating their role in a variety of important respiratory diseases including chronic obstructive pulmonary disease, cystic fibrosis, bronchiectasis, asthma, pneumonia, COVID-19, rhinosinusitis, interstitial lung disease and lung cancer. The expression of NETs and other traps is a specific process, and diagnostic tests need to differentiate them from other inflammatory pathways/causes of cell death that are also characterised by the presence of extracellular DNA. The specific targeting of this pathway by relevant therapeutics may have significant clinical benefit; however, current clinical trials/evidence are at a very early stage. This review will provide a broad overview of the role of NETs and their possible treatment in respiratory disease.
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Affiliation(s)
- Paul T. King
- Monash Lung, Sleep, Allergy and Immunology, Monash Medical Centre, 246 Clayton Rd, Clayton, Melbourne, VIC 3168, Australia;
- Department of Medicine, Monash University, Clayton, Melbourne, VIC 3168, Australia
| | - Lovisa Dousha
- Monash Lung, Sleep, Allergy and Immunology, Monash Medical Centre, 246 Clayton Rd, Clayton, Melbourne, VIC 3168, Australia;
- Department of Medicine, Monash University, Clayton, Melbourne, VIC 3168, Australia
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Xu H, He X, Zhang B, Li M, Zhu Y, Wang T, Liu S, Shu M, Ding D, Wang Y, Zhao Q, Li J, Song X, Huang W. Low-level ambient ozone exposure associated with neutrophil extracellular traps and pro-atherothrombotic biomarkers in healthy adults. Atherosclerosis 2024:117509. [PMID: 38523002 DOI: 10.1016/j.atherosclerosis.2024.117509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 01/31/2024] [Accepted: 03/05/2024] [Indexed: 03/26/2024]
Abstract
BACKGROUND AND AIMS Uncertainty of the causality determinations for ambient ozone (O3) on cardiovascular events is heightened by the limited understanding of the mechanisms involved in humans. We aimed to examine the pro-atherothrombotic impacts of O3 exposure and to explore the potential mediating roles of dysfunctional neutrophils, focusing on neutrophil extracellular traps (NETs). METHODS A longitudinal panel study of 152 healthy adults was conducted in the cool to cold months with relatively low levels of O3 between September 2019 and January 2020 in Beijing, China. Four repeated measurements of indicators reflecting atherothrombotic balance and NETs were performed for each participant. RESULTS Daily average exposure levels of ambient O3 were 16.6 μg/m3 throughout the study period. Per interquartile range increase in average concentrations of O3 exposure at prior up to 7 days, we observed elevations of 200.1-276.3% in D-dimer, 27.2-36.8% in thrombin-antithrombin complex, 10.8-60.3% in plasminogen activator inhibitor 1, 13.9-21.8% in soluble P-selectin, 16.5-45.1% in matrix metalloproteinase-8, and 2.4-12.4% in lipoprotein-associated phospholipase A2. These pro-atherothrombotic changes were accompanied by endothelial activation, lung injury, and immune inflammation. O3 exposure was also positively associated with circulating NETs indicators, including citrullinated histone H3, neutrophil elastase, myeloperoxidase, and double-stranded DNA. Mediation analyses indicated that NETs could mediate O3-associated pro-atherothrombotic responses. The observational associations remained significant and robust after controlling for other pollutants, and were generally greater in participants with low levels of physical activity. CONCLUSIONS Ambient O3 exposure was associated with significant increases in NETs and pro-atherothrombotic potential, even at exposure levels well below current air quality guidelines of the World Health Organization.
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Affiliation(s)
- Hongbing Xu
- Department of Occupational and Environmental Health Sciences, Peking University School of Public Health, and Peking University Institute of Environmental Medicine, Beijing, China; State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing, China
| | - Xinghou He
- Department of Occupational and Environmental Health Sciences, Peking University School of Public Health, and Peking University Institute of Environmental Medicine, Beijing, China; State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing, China
| | - Bin Zhang
- Department of Occupational and Environmental Health Sciences, Peking University School of Public Health, and Peking University Institute of Environmental Medicine, Beijing, China; State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing, China
| | - Mengyao Li
- Department of Occupational and Environmental Health Sciences, Peking University School of Public Health, and Peking University Institute of Environmental Medicine, Beijing, China; State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing, China
| | - Yutong Zhu
- Department of Occupational and Environmental Health Sciences, Peking University School of Public Health, and Peking University Institute of Environmental Medicine, Beijing, China; State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing, China
| | - Tong Wang
- Department of Occupational and Environmental Health Sciences, Peking University School of Public Health, and Peking University Institute of Environmental Medicine, Beijing, China; State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing, China
| | - Shengcong Liu
- Division of Cardiology, Peking University First Hospital, Beijing, China
| | - Mushui Shu
- Institute of Urban Safety and Environmental Science, Beijing Academy of Science and Technology, Beijing, China
| | - Ding Ding
- Institute of Urban Safety and Environmental Science, Beijing Academy of Science and Technology, Beijing, China
| | - Yu Wang
- Institute of Urban Safety and Environmental Science, Beijing Academy of Science and Technology, Beijing, China
| | - Qian Zhao
- Department of Occupational and Environmental Health Sciences, Peking University School of Public Health, and Peking University Institute of Environmental Medicine, Beijing, China; State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing, China
| | - Jianping Li
- Division of Cardiology, Peking University First Hospital, Beijing, China
| | - Xiaoming Song
- Department of Occupational and Environmental Health Sciences, Peking University School of Public Health, and Peking University Institute of Environmental Medicine, Beijing, China; State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing, China.
| | - Wei Huang
- Department of Occupational and Environmental Health Sciences, Peking University School of Public Health, and Peking University Institute of Environmental Medicine, Beijing, China; State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing, China.
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Zhu X, Bai B, Ge X, Zheng B, Xiao Z, Tang Y, Fang L, Tang Y, Dai Y, Zhang B, Zhang Y. Costunolide attenuates LPS-induced inflammation and lung injury through inhibiting IKK/NF-κB signaling. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2024; 397:1601-1610. [PMID: 37688623 DOI: 10.1007/s00210-023-02705-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Accepted: 08/30/2023] [Indexed: 09/11/2023]
Abstract
Inflammation is an important pathological process of many acute and chronic diseases, such as sepsis, arthritis, and cancer. Many factors can lead to an inflammatory state of the body, among which bacterial infection plays an important role. Bacterial infection often leads to sepsis, acute lung injury (ALI), or its more serious form of acute respiratory distress syndrome, which are the main fatal diseases in intensive care units. Costunolide has been reported to possess excellent anti-inflammatory activity; however, whether it can affect inflammation induced by gram-negative bacterial is still unclear. Lipopolysaccharide (LPS) stimulated mouse peritoneal macrophages (MPMs) to release proinflammatory cytokines was used as the cell model. The mouse model of sepsis and ALI was built through injecting intravenously and intratracheally of LPS. In the present study, costunolide inhibited LPS-induced inflammatory response through IKK/NF-κB signaling pathway in macrophages. In vivo, costunolide attenuated LPS-induced septic death in mice. Meanwhile, costunolide treatment alleviated LPS-induced lung injury and inflammation via inhibiting the infiltration of inflammatory cells and the expression of inflammatory cytokines. Taken together, these results demonstrated that costunolide could attenuate gram-negative bacterial induced inflammation and diseases and might be a potential candidate for the treatment of inflammatory diseases.
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Affiliation(s)
- Xiaona Zhu
- Affiliated Yueqing Hospital, Wenzhou Medical University, Wenzhou, 325600, Zhejiang, China
| | - Bin Bai
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325035, Zhejiang, China
| | - Xiangting Ge
- Department of Pulmonary and Critical Care Medicine, the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325000, Zhejiang, China
| | - Bin Zheng
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325035, Zhejiang, China
| | - Zhongxiang Xiao
- Affiliated Yueqing Hospital, Wenzhou Medical University, Wenzhou, 325600, Zhejiang, China
| | - Yue Tang
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325035, Zhejiang, China
| | - Letong Fang
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325035, Zhejiang, China
| | - Yelin Tang
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325035, Zhejiang, China
| | - Yuanrong Dai
- Department of Pulmonary and Critical Care Medicine, the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325000, Zhejiang, China.
| | - Bing Zhang
- Affiliated Yueqing Hospital, Wenzhou Medical University, Wenzhou, 325600, Zhejiang, China.
| | - Yali Zhang
- Affiliated Yueqing Hospital, Wenzhou Medical University, Wenzhou, 325600, Zhejiang, China.
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325035, Zhejiang, China.
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Lim S, Khalmuratova R, Lee YY, Kim YS, Lee M, Lee NK, Kim SN, Choy YB, Park CG, Kim DW, Shin HW. Neutrophil extracellular traps promote ΔNp63+ basal cell hyperplasia in chronic rhinosinusitis. J Allergy Clin Immunol 2024; 153:705-717.e11. [PMID: 38000697 DOI: 10.1016/j.jaci.2023.11.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 11/06/2023] [Accepted: 11/10/2023] [Indexed: 11/26/2023]
Abstract
BACKGROUND Neutrophil extracellular traps (NETs) are observed in chronic rhinosinusitis (CRS), although their role remains unclear. OBJECTIVES This study aimed to investigate the influence of NETs on the CRS epithelium. METHODS Forty-five sinonasal biopsy specimens were immunofluorescence-stained to identify NETs and p63+ basal stem cells. Investigators treated human nasal epithelial cells with NETs and studied them with immunofluorescence staining, Western blotting, and quantitative real-time PCR. NET inhibitors were administered to a murine neutrophilic nasal polyp model. RESULTS NETs existed in tissues in patients with CRS with nasal polyps, especially in noneosinophilic nasal polyp tissues. p63+ basal cell expression had a positive correlation with the release of NETs. NETs induced the expansion of Ki-67+p63+ cells. We found that ΔNp63, an isoform of p63, was mainly expressed in the nasal epithelium and controlled by NETs. Treatment with deoxyribonuclease (DNase) I or Sivelestat (NET inhibitors) prevented the overexpression of ΔNp63+ epithelial stem cells and reduced polyp formation. CONCLUSIONS These results reveal that NETs are implicated in CRS pathogenesis via basal cell hyperplasia. This study suggests a novel possibility of treating CRS by targeting NETs.
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Affiliation(s)
- Suha Lim
- Obstructive Upper airway Research (OUaR) Laboratory, Department of Pharmacology, Seoul National University College of Medicine, Seoul, Korea; Department of Biomedical Sciences, Seoul National University Graduate School, Seoul, Korea; Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Roza Khalmuratova
- Obstructive Upper airway Research (OUaR) Laboratory, Department of Pharmacology, Seoul National University College of Medicine, Seoul, Korea
| | - Yun Young Lee
- Department of Biomedical Engineering, Seoul National University College of Medicine, Seoul, Korea
| | - Yi Sook Kim
- Obstructive Upper airway Research (OUaR) Laboratory, Department of Pharmacology, Seoul National University College of Medicine, Seoul, Korea; Department of Biomedical Sciences, Seoul National University Graduate School, Seoul, Korea; Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Mingyu Lee
- Obstructive Upper airway Research (OUaR) Laboratory, Department of Pharmacology, Seoul National University College of Medicine, Seoul, Korea; Department of Biomedical Sciences, Seoul National University Graduate School, Seoul, Korea; Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Na Kyeong Lee
- Department of Biomedical Engineering, SKKU Institute for Convergence, Sungkyunkwan University (SKKU), Suwon, Korea; Department of Intelligent Precision Healthcare Convergence, SKKU Institute for Convergence, Sungkyunkwan University (SKKU), Suwon, Korea
| | - Se-Na Kim
- Department of Research and Development Center, MediArk Inc, Cheongju, Korea; Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University College of Medicine, Seoul National University Boramae Medical Center, Seoul, Korea
| | - Young Bin Choy
- Department of Biomedical Engineering, Seoul National University College of Medicine, Seoul, Korea
| | - Chun Gwon Park
- Department of Biomedical Engineering, SKKU Institute for Convergence, Sungkyunkwan University (SKKU), Suwon, Korea; Department of Intelligent Precision Healthcare Convergence, SKKU Institute for Convergence, Sungkyunkwan University (SKKU), Suwon, Korea
| | - Dae Woo Kim
- Sensory Organ Research Institute, Seoul National University Medical Research Center, Seoul, Korea; Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University College of Medicine, Seoul National University Boramae Medical Center, Seoul, Korea
| | - Hyun-Woo Shin
- Obstructive Upper airway Research (OUaR) Laboratory, Department of Pharmacology, Seoul National University College of Medicine, Seoul, Korea; Department of Biomedical Sciences, Seoul National University Graduate School, Seoul, Korea; Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea; Sensory Organ Research Institute, Seoul National University Medical Research Center, Seoul, Korea; Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University Hospital, Seoul, Korea.
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Divolis G, Synolaki E, Doulou A, Gavriil A, Giannouli CC, Apostolidou A, Foster ML, Matzuk MM, Skendros P, Galani IE, Sideras P. Neutrophil-derived Activin-A moderates their pro-NETotic activity and attenuates collateral tissue damage caused by Influenza A virus infection. Front Immunol 2024; 15:1302489. [PMID: 38476229 PMCID: PMC10929267 DOI: 10.3389/fimmu.2024.1302489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Accepted: 01/24/2024] [Indexed: 03/14/2024] Open
Abstract
Background Pre-neutrophils, while developing in the bone marrow, transcribe the Inhba gene and synthesize Activin-A protein, which they store and release at the earliest stage of their activation in the periphery. However, the role of neutrophil-derived Activin-A is not completely understood. Methods To address this issue, we developed a neutrophil-specific Activin-A-deficient animal model (S100a8-Cre/Inhba fl/fl mice) and analyzed the immune response to Influenza A virus (IAV) infection. More specifically, evaluation of body weight and lung mechanics, molecular and cellular analyses of bronchoalveolar lavage fluids, flow cytometry and cell sorting of lung cells, as well as histopathological analysis of lung tissues, were performed in PBS-treated and IAV-infected transgenic animals. Results We found that neutrophil-specific Activin-A deficiency led to exacerbated pulmonary inflammation and widespread hemorrhagic histopathology in the lungs of IAV-infected animals that was associated with an exuberant production of neutrophil extracellular traps (NETs). Moreover, deletion of the Activin-A receptor ALK4/ACVR1B in neutrophils exacerbated IAV-induced pathology as well, suggesting that neutrophils themselves are potential targets of Activin-A-mediated signaling. The pro-NETotic tendency of Activin-A-deficient neutrophils was further verified in the context of thioglycollate-induced peritonitis, a model characterized by robust peritoneal neutrophilia. Of importance, transcriptome analysis of Activin-A-deficient neutrophils revealed alterations consistent with a predisposition for NET release. Conclusion Collectively, our data demonstrate that Activin-A, secreted by neutrophils upon their activation in the periphery, acts as a feedback mechanism to moderate their pro-NETotic tendency and limit the collateral tissue damage caused by neutrophil excess activation during the inflammatory response.
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Affiliation(s)
- Georgios Divolis
- Center for Clinical, Experimental Surgery and Translational Research, Biomedical Research Foundation Academy of Athens, Athens, Greece
| | - Evgenia Synolaki
- Center for Clinical, Experimental Surgery and Translational Research, Biomedical Research Foundation Academy of Athens, Athens, Greece
| | - Athanasia Doulou
- Center for Clinical, Experimental Surgery and Translational Research, Biomedical Research Foundation Academy of Athens, Athens, Greece
| | - Ariana Gavriil
- Center for Clinical, Experimental Surgery and Translational Research, Biomedical Research Foundation Academy of Athens, Athens, Greece
| | - Christina C. Giannouli
- Center for Clinical, Experimental Surgery and Translational Research, Biomedical Research Foundation Academy of Athens, Athens, Greece
| | - Anastasia Apostolidou
- Center for Clinical, Experimental Surgery and Translational Research, Biomedical Research Foundation Academy of Athens, Athens, Greece
| | | | - Martin M. Matzuk
- Department of Pathology & Immunology, Baylor College of Medicine, Houston, TX, United States
- Center for Drug Discovery, Baylor College of Medicine, Houston, TX, United States
| | - Panagiotis Skendros
- Laboratory of Molecular Hematology, Department of Medicine, Democritus University of Thrace, Alexandroupolis, Greece
- First Department of Internal Medicine, University Hospital of Alexandroupolis, Democritus University of Thrace, Alexandroupolis, Greece
| | - Ioanna-Evdokia Galani
- Center for Clinical, Experimental Surgery and Translational Research, Biomedical Research Foundation Academy of Athens, Athens, Greece
| | - Paschalis Sideras
- Center for Clinical, Experimental Surgery and Translational Research, Biomedical Research Foundation Academy of Athens, Athens, Greece
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Liang J, Zhou C, Zhang C, Liang S, Zhou Z, Zhou Z, Wu C, Zhao H, Meng X, Zou F, Yu C, Cai S. Nicotinamide mononucleotide attenuates airway epithelial barrier dysfunction via inhibiting SIRT3 SUMOylation in asthma. Int Immunopharmacol 2024; 127:111328. [PMID: 38064810 DOI: 10.1016/j.intimp.2023.111328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 11/28/2023] [Accepted: 11/28/2023] [Indexed: 01/18/2024]
Abstract
Nicotinamide adenine dinucleotide (NAD+) is an essential element in cellular metabolism that regulates fundamental biological processes. Growing evidence suggests that a decline in NAD+ is a common pathological factor in various diseases and aging. However, its role in airway epithelial barrier function in response to asthma remains underexplored. The current study aims to explore the efficacy of restoring cellular NAD+ concentration through supplementation with the NAD+ precursor, nicotinamide mononucleotide (NMN), in the treatment of allergic asthma and to investigate the role of SIRT3 in mediating the effects of NAD+ precursors. In this research, NMN alleviated airway inflammation and reduced mucus secretion in house dust mite (HDM)-induced asthmatic mice. It also mitigated airway epithelial barrier disruption in HDM-induced asthma in vitro and in vivo. But inhibition of SIRT3 expression abolished the effects of NMN. Mechanistically, HDM induced SIRT3 SUMOylation and proteasomal degradation. Mutation of these two SIRT3 SUMO modification sites enhanced the stability of SIRT3. Additionally, SIRT3 was targeted by SENP1 which acted to de-conjugate SUMO. And down-regulation of SENP1 expression in HDM-induced models was reversed by NMN. Collectively, these findings suggest that NMN attenuates airway epithelial barrier dysfunction via inhibiting SIRT3 SUMOylation in asthma. Blockage of SIRT3 SUMOylation emerges as for the treatment of allergic asthma.
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Affiliation(s)
- Jiayuan Liang
- Department of Respiratory and Critical Care Medicine, Chronic Airways Diseases Laboratory, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Chi Zhou
- Department of Respiratory and Critical Care Medicine, Chronic Airways Diseases Laboratory, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Changyun Zhang
- Department of Respiratory and Critical Care Medicine, Chronic Airways Diseases Laboratory, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Shixiu Liang
- Department of Allergy and Clinical Immunology, State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Zili Zhou
- Department of Respiratory and Critical Care Medicine, Chronic Airways Diseases Laboratory, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Zicong Zhou
- Department of Allergy and Clinical Immunology, State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Cuiwen Wu
- Department of Respiratory and Critical Care Medicine, Chronic Airways Diseases Laboratory, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Haijin Zhao
- Department of Respiratory and Critical Care Medicine, Chronic Airways Diseases Laboratory, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Xiaojing Meng
- Department of Occupational Health and Occupational Medicine, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou, Guangdong, China
| | - Fei Zou
- Department of Occupational Health and Occupational Medicine, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou, Guangdong, China
| | - Changhui Yu
- Department of Respiratory and Critical Care Medicine, Chronic Airways Diseases Laboratory, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China.
| | - Shaoxi Cai
- Department of Respiratory and Critical Care Medicine, Chronic Airways Diseases Laboratory, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China.
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10
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Xuan N, Zhao J, Kang Z, Cui W, Tian BP. Neutrophil extracellular traps and their implications in airway inflammatory diseases. Front Med (Lausanne) 2024; 10:1331000. [PMID: 38283037 PMCID: PMC10811107 DOI: 10.3389/fmed.2023.1331000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 12/29/2023] [Indexed: 01/30/2024] Open
Abstract
Neutrophil extracellular traps (NETs) are essential for immune defense and have been increasingly recognized for their role in infection and inflammation. In the context of airway inflammatory diseases, there is growing evidence suggesting the involvement and significance of NETs. This review aims to provide an overview of the formation mechanisms and components of NETs and their impact on various airway inflammatory diseases, including acute lung injury/ARDS, asthma, chronic obstructive pulmonary disease (COPD) and cystic fibrosis. By understanding the role of NETs in airway inflammation, we can gain valuable insights into the underlying pathogenesis of these diseases and identify potential targets for future therapeutic strategies that either target NETs formation or modulate their harmful effects. Further research is warranted to elucidate the complex interactions between NETs and airway inflammation and to develop targeted therapies that can effectively mitigate their detrimental effects while preserving their beneficial functions in host defense.
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Affiliation(s)
- Nanxia Xuan
- Department of Critical Care Medicine, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Jie Zhao
- Department of Critical Care Medicine, The First Affiliated Hospital of Ningbo University, Ningbo, China
| | - Zhiying Kang
- Department of Critical Care Medicine, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Wei Cui
- Department of Critical Care Medicine, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Bao-ping Tian
- Department of Critical Care Medicine, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
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11
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Shao BZ, Jiang JJ, Zhao YC, Zheng XR, Xi N, Zhao GR, Huang XW, Wang SL. Neutrophil extracellular traps in central nervous system (CNS) diseases. PeerJ 2024; 12:e16465. [PMID: 38188146 PMCID: PMC10771765 DOI: 10.7717/peerj.16465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Accepted: 10/24/2023] [Indexed: 01/09/2024] Open
Abstract
Excessive induction of inflammatory and immune responses is widely considered as one of vital factors contributing to the pathogenesis and progression of central nervous system (CNS) diseases. Neutrophils are well-studied members of inflammatory and immune cell family, contributing to the innate and adaptive immunity. Neutrophil-released neutrophil extracellular traps (NETs) play an important role in the regulation of various kinds of diseases, including CNS diseases. In this review, current knowledge on the biological features of NETs will be introduced. In addition, the role of NETs in several popular and well-studied CNS diseases including cerebral stroke, Alzheimer's disease, multiple sclerosis, amyotrophic lateral sclerosis (ALS), and neurological cancers will be described and discussed through the reviewing of previous related studies.
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Affiliation(s)
- Bo-Zong Shao
- Department of Pharmacy, Chinese PLA General Hospital, Beijing, China
| | | | - Yi-Cheng Zhao
- Department of Pharmacy, Chinese PLA General Hospital, Beijing, China
| | - Xiao-Rui Zheng
- Department of Pharmacy, Chinese PLA General Hospital, Beijing, China
| | - Na Xi
- Department of Pharmacy, Chinese PLA General Hospital, Beijing, China
| | - Guan-Ren Zhao
- Department of Pharmacy, Chinese PLA General Hospital, Beijing, China
| | - Xiao-Wu Huang
- Department of Pharmacy, Chinese PLA General Hospital, Beijing, China
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12
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Stojkov D, Yousefi S, Simon HU. NETs: Important players in asthma? J Allergy Clin Immunol 2024; 153:100-102. [PMID: 37802473 DOI: 10.1016/j.jaci.2023.09.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 09/27/2023] [Accepted: 09/29/2023] [Indexed: 10/10/2023]
Affiliation(s)
- Darko Stojkov
- Institute of Pharmacology, University of Bern, Bern, Switzerland
| | - Shida Yousefi
- Institute of Pharmacology, University of Bern, Bern, Switzerland
| | - Hans-Uwe Simon
- Institute of Pharmacology, University of Bern, Bern, Switzerland; Institute of Biochemistry, Brandenburg Medical School, Neuruppin, Germany.
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13
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Wang Q, Guo L, Zeng Z, Huang Y, Tang H, Hu H, Yuan X, Deng J, Qin G, Wang X, Zhang Y. Neferine Attenuates HDM-Induced Allergic Inflammation by Inhibiting the Activation of Dendritic Cell. Inflammation 2023; 46:2433-2448. [PMID: 37702907 DOI: 10.1007/s10753-023-01891-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 06/05/2023] [Accepted: 08/15/2023] [Indexed: 09/14/2023]
Abstract
House dust mite (HDM) acts as an environmental antigen that might cause chronic allergic diseases. Neferine (NEF) shows anti-inflammation therapeutic effects. This study is to explore the protection role of NEF against HDM-induced allergic inflammation. HDM-induced allergic asthmatic C57BL/6J mice models were established. Differential histological staining was used to analyze lung tissue pathological scores. Flow cytometry was used to analyze subtypes and biomarker expression of immune cells. RT-PCR and ELISA were used to test cytokines-related gene and/or protein expression levels. Western blot was performed to investigate the signaling pathway that mediates allergic inflammation from mice lung tissue and bone marrow-derived dendritic cells (BMDCs). H&E and PAS staining results indicate NEF significantly attenuated inflammatory index and the percentage of goblet cells in the lung tissue induced by HDM. The HDM-elevated TH2 and TH17 cells were significantly decreased by NEF; inflammatory cytokines Il-4, Il-13 and Il-17 were dramatically downregulated in the NEF plus HDM group compared with HDM alone. CD40+ and CD86+ DCs, eosinophils and mast cells, and ILC2 cells were decreased by NEF which was elevated under HDM stimulation. In vivo and ex vivo investigations indicated NEF can attenuate the activated NF-κB signaling induced by HDM is involved in allergic inflammatory immune response and regulates cytokines-related gene expression. HDM-activated DCs promoted differentiation of TH2 and TH17 cells but were attenuated by NEF. This study suggests NEF interrupts the overexpression of some cytokines released by DCs, TH2, and TH17 cells; NEF attenuates HDM-induced allergic inflammation via inhibiting NF-κB signaling of DCs.
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Affiliation(s)
- Qiao Wang
- Inflammation and Allergic Diseases Research Unit, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, China
- Department of Respiratory and Critical Care Medicine, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, China
| | - Linlin Guo
- Department of Obstetrics and Gynecology, The Ohio State University Wexner Medical Center, The Ohio State University, Columbus, OH, USA.
- Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, USA.
| | - Ziling Zeng
- Inflammation and Allergic Diseases Research Unit, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, China
- Department of Respiratory and Critical Care Medicine, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, China
| | - Yueru Huang
- Jiangsu Provincial Key Laboratory of Critical Care Medicine, Department of Critical Care Medicine, School of Medicine, Zhongda Hospital, Southeast University, Nanjing, 210009, China
| | - Hongmei Tang
- Inflammation and Allergic Diseases Research Unit, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, China
| | - Hang Hu
- Inflammation and Allergic Diseases Research Unit, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, China
- Department of Respiratory and Critical Care Medicine, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, China
| | - Xiefang Yuan
- Inflammation and Allergic Diseases Research Unit, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, China
| | - Jun Deng
- Department of Respiratory and Critical Care Medicine, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, China
| | - Gang Qin
- Department of Otolaryngology Head and Neck Surgery, the Affiliated Hospital of Southwest Medical University, Luzhou, 646000, China
| | - Xing Wang
- Inflammation and Allergic Diseases Research Unit, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, China.
| | - Yun Zhang
- Inflammation and Allergic Diseases Research Unit, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, China.
- Department of Respiratory and Critical Care Medicine, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, China.
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14
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Wang X, Wang Y, Tang T, Zhao G, Dong W, Li Q, Liang X. Curcumin-Loaded RH60/F127 Mixed Micelles: Characterization, Biopharmaceutical Characters and Anti-Inflammatory Modulation of Airway Inflammation. Pharmaceutics 2023; 15:2710. [PMID: 38140051 PMCID: PMC10747166 DOI: 10.3390/pharmaceutics15122710] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 11/08/2023] [Accepted: 11/21/2023] [Indexed: 12/24/2023] Open
Abstract
Curcumin's ability to impact chronic inflammatory conditions, such as metabolic syndrome and arthritis, has been widely researched; however, its poor bioavailability limits its clinical application. The present study is focused on the development of curcumin-loaded polymeric nanomicelles as a drug delivery system with anti-inflammatory effects. Curcumin was loaded in PEG-60 hydrogenated castor oil and puronic F127 mixed nanomicelles (Cur-RH60/F127-MMs). Cur-RH60/F127-MMs was prepared using the thin film dispersion method. The morphology and releasing characteristics of nanomicelles were evaluated. The uptake and permeability of Cur-RH60/F127-MMs were investigated using RAW264.7 and Caco-2 cells, and their bioavailability and in vivo/vitro anti-inflammatory activity were also evaluated. The results showed that Cur-RH60/F127-MMs have regular sphericity, possess an average diameter smaller than 20 nm, and high encapsulation efficiency for curcumin (89.43%). Cur-RH60/F127-MMs significantly increased the cumulative release of curcumin in vitro and uptake by cells (p < 0.01). The oral bioavailability of Cur-RH60/F127-MMs was much higher than that of curcumin-active pharmaceutical ingredients (Cur-API) (about 9.24-fold). The treatment of cell lines with Cur-RH60/F127-MMs exerted a significantly stronger anti-inflammatory effect compared to Cur-API. In addition, Cur-RH60/F127-MMs significantly reduced OVA-induced airway hyperresponsiveness and inflammation in an in vivo experimental asthma model. In conclusion, this study reveals the possibility of formulating a new drug delivery system for curcumin, in particular nanosized micellar aqueous dispersion, which could be considered a perspective platform for the application of curcumin in inflammatory diseases of the airways.
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Affiliation(s)
- Xinli Wang
- Key Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Chinese Medicine, Nanchang 330004, China; (X.W.); (G.Z.); (W.D.); (Q.L.)
- Jiangxi Medical Device Testing Center, Nanchang 330029, China
| | - Yanyan Wang
- Clinical Medical School, Jiangxi University of Chinese Medicine, Nanchang 330004, China;
| | - Tao Tang
- Department of Pharmacy, Ji’an Central People’s Hospital, Ji’an 343000, China;
| | - Guowei Zhao
- Key Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Chinese Medicine, Nanchang 330004, China; (X.W.); (G.Z.); (W.D.); (Q.L.)
| | - Wei Dong
- Key Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Chinese Medicine, Nanchang 330004, China; (X.W.); (G.Z.); (W.D.); (Q.L.)
| | - Qiuxiang Li
- Key Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Chinese Medicine, Nanchang 330004, China; (X.W.); (G.Z.); (W.D.); (Q.L.)
| | - Xinli Liang
- Key Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Chinese Medicine, Nanchang 330004, China; (X.W.); (G.Z.); (W.D.); (Q.L.)
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15
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Zhang S, Sun F, Zhu J, Qi J, Wang W, Liu Z, Li W, Liu C, Liu X, Wang N, Song X, Zhang D, Qi D, Wang X. Phillyrin ameliorates influenza a virus-induced pulmonary inflammation by antagonizing CXCR2 and inhibiting NLRP3 inflammasome activation. Virol J 2023; 20:262. [PMID: 37957672 PMCID: PMC10644626 DOI: 10.1186/s12985-023-02219-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Accepted: 10/28/2023] [Indexed: 11/15/2023] Open
Abstract
Influenza is an acute viral respiratory illness with high morbidity rates worldwide. Excessive pulmonary inflammation is the main characteristic of lethal influenza A virus (IAV) infections. Therapeutic options for managing influenza are limited to vaccines and some antiviral medications. Phillyrin is one of the major bioactive components of the Chinese herbal medicine Forsythia suspensa, which has the functions of sterilization, heat clearing and detoxification. In this work, the effect and mechanism of phillyrin on H1N1 influenza (PR8)-induced pneumonia were investigated. We reported that phillyrin (15 mg/kg) treatment after viral challenge significantly improved the weight loss, ameliorated pulmonary inflammation and inhibited the accumulation of multiple cytokines and chemokines in bronchoalveolar lavage fluid on 7 days post infection (dpi). In vitro, phillyrin suppressed influenza viral replication (Matrixprotein and nucleoprotein messenger RNA level) and reduced influenza virus-induced cytopathic effect (CPE). Furthermore,chemokine receptor CXCR2 was confirmed to be markedly inhibited by phillyrin. Surface plasmon resonance results reveal that phillyrin exhibits binding affinity to CXCR2, having a binding affinity constant (KD) value of 1.858e-5 M, suggesting that CXCR2 is a potential therapeutic target for phillyrin. Moreover, phillyrin inhibited the mRNA and protein expression levels of Caspase1, ASC and NLRP3 in the lungs of mice with H1N1-induced pneumonia.This study reveals that phillyrin ameliorates IAV-induced pulmonary inflammation by antagonizing CXCR2 and inhibiting NLRP3 inflammasome activation partly.
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Affiliation(s)
- Shanyu Zhang
- Shandong University of Traditional Chinese Medicine, Jinan, 250355, China
- Key Laboratory of Traditional Chinese Medicine Classical Theory, Ministry of Education, Shandong University of Traditional Chinese Medicine, Jinan, 250355, China
- Shandong Provincial Key Laboratory of Traditional Chinese Medicine for Basic Research, Shandong University of Traditional Chinese Medicine, Jinan, 250355, China
| | - Fengzhi Sun
- Shandong Provincial Maternal and Child Health Care Hospital Affiliated to Qingdao University, Jinan, 250014, China
| | - Jinlu Zhu
- Shandong University of Traditional Chinese Medicine, Jinan, 250355, China
| | - Jianhong Qi
- Department of Pharmaceutics, China Pharmaceutical University, Nanjing, 211198, China
| | - Wenjing Wang
- Shandong University of Traditional Chinese Medicine, Jinan, 250355, China
| | - Ziming Liu
- Shandong University of Traditional Chinese Medicine, Jinan, 250355, China
| | - Wenqian Li
- Shandong University of Traditional Chinese Medicine, Jinan, 250355, China
| | - Chuanguo Liu
- Shandong University of Traditional Chinese Medicine, Jinan, 250355, China
- Experimental Center, Shandong University of Traditional Chinese Medicine, Jinan, 250355, China
- Shandong Provincial Key Laboratory of Traditional Chinese Medicine for Basic Research, Shandong University of Traditional Chinese Medicine, Jinan, 250355, China
| | - Xuehuan Liu
- Shandong University of Traditional Chinese Medicine, Jinan, 250355, China
- Experimental Center, Shandong University of Traditional Chinese Medicine, Jinan, 250355, China
| | - Nonghan Wang
- Shandong University of Traditional Chinese Medicine, Jinan, 250355, China
| | - Xinyu Song
- Shandong University of Traditional Chinese Medicine, Jinan, 250355, China
| | - Dan Zhang
- Shandong University of Traditional Chinese Medicine, Jinan, 250355, China.
- Experimental Center, Shandong University of Traditional Chinese Medicine, Jinan, 250355, China.
- Key Laboratory of Traditional Chinese Medicine Classical Theory, Ministry of Education, Shandong University of Traditional Chinese Medicine, Jinan, 250355, China.
- Shandong Provincial Key Laboratory of Traditional Chinese Medicine for Basic Research, Shandong University of Traditional Chinese Medicine, Jinan, 250355, China.
| | - Dongmei Qi
- Shandong University of Traditional Chinese Medicine, Jinan, 250355, China.
- Experimental Center, Shandong University of Traditional Chinese Medicine, Jinan, 250355, China.
- Key Laboratory of Traditional Chinese Medicine Classical Theory, Ministry of Education, Shandong University of Traditional Chinese Medicine, Jinan, 250355, China.
- Shandong Provincial Key Laboratory of Traditional Chinese Medicine for Basic Research, Shandong University of Traditional Chinese Medicine, Jinan, 250355, China.
| | - Xiaolong Wang
- Shandong University of Traditional Chinese Medicine, Jinan, 250355, China.
- Experimental Center, Shandong University of Traditional Chinese Medicine, Jinan, 250355, China.
- Key Laboratory of Traditional Chinese Medicine Classical Theory, Ministry of Education, Shandong University of Traditional Chinese Medicine, Jinan, 250355, China.
- Shandong Provincial Key Laboratory of Traditional Chinese Medicine for Basic Research, Shandong University of Traditional Chinese Medicine, Jinan, 250355, China.
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16
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Wang M, Qu J, Yang J, Zhang T, Tan WR, Liao S, Chen X, Liu Y, Long X, Li X, Xia Y, Tan NS, Li L, Fang M. A missing jigsaw within the hygiene hypothesis: Low-dose bisphenol A exposure attenuates lipopolysaccharide-induced asthma protection. PNAS NEXUS 2023; 2:pgad312. [PMID: 37954159 PMCID: PMC10635653 DOI: 10.1093/pnasnexus/pgad312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/10/2022] [Accepted: 09/07/2023] [Indexed: 11/14/2023]
Abstract
The rising occurrence of allergic asthma in early life across industrialized countries suggests that environmental factors play a crucial role in determining asthma susceptibility and severity. While prior exposure to microbial lipopolysaccharides (LPSs) has been found to offer protection against allergic asthma, infants residing in urban environments are increasingly exposed to environmental pollutants. Utilizing limulus lysate test screens and virtual screening models, we identified pollutants that can modulate LPS bioactivity. This investigation revealed that bisphenol A (BPA), a chemical commonly used in numerous household items and previously implicated in obesity and cancer, effectively neutralizes LPS. In-depth mechanistic analyses showed that BPA specifically binds to the lipid A component of LPS, leading to inactivation. This interaction eliminates the immunostimulatory activity of LPS, making mice more susceptible to house dust mite (HDM)-induced allergic asthma. BPA reactivates lung epithelial cells, consequently amplifying type 2 responses to HDMs in dendritic cells. This chemical interplay provides new insights into the pathophysiology of asthma in relation to human exposure. Understanding the intricate relationships between environmental chemicals and microbial antigens, as well as their impacts on innate immunity, is critical for the development of intervention strategies to address immune disorders resulting from urbanization.
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Affiliation(s)
- Mengjing Wang
- Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, China
- School of Civil and Environmental Engineering, Nanyang Technological University, Singapore 639798, Singapore
| | - Jing Qu
- Department of Pathogen Biology, Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, China
| | - Junjie Yang
- School of Civil and Environmental Engineering, Nanyang Technological University, Singapore 639798, Singapore
| | - Tian Zhang
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore 639798, Singapore
| | - Wei Ren Tan
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore 639798, Singapore
| | - Shumin Liao
- Department of Pharmacology, School of Medicine, Southern University of Science and Technology, Shenzhen 518055, China
| | - Xing Chen
- Institute of Mass Spectrometer and Atmospheric Environment, Jinan University, Guangzhou 510632, China
| | - Yingzi Liu
- Intervention and Cell Therapy Center, Peking University Shenzhen Hospital, Shenzhen 518036, China
| | - Xiang Long
- Department of Respiratory Medicine and Critical Care, Peking University Shenzhen Hospital, Shenzhen 518036, China
| | - Xue Li
- Institute of Mass Spectrometer and Atmospheric Environment, Jinan University, Guangzhou 510632, China
| | - Yun Xia
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore 639798, Singapore
| | - Nguan Soon Tan
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore 639798, Singapore
| | - Liang Li
- Department of Pharmacology, School of Medicine, Southern University of Science and Technology, Shenzhen 518055, China
- Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
- Joint Laboratory of Guangdong-Hong Kong Universities for Vascular Homeostasis and Diseases, Shenzhen 518055, China
| | - Mingliang Fang
- Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, China
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17
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Wu X, You D, Pan M, Weng M, Xie Q, Guan Y, Zheng J, Lin S, Zhang X, Hao C, Wan J. Knockout of the C3a receptor protects against renal ischemia reperfusion injury by reduction of NETs formation. Cell Mol Life Sci 2023; 80:322. [PMID: 37816851 PMCID: PMC11072185 DOI: 10.1007/s00018-023-04967-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 08/20/2023] [Accepted: 09/06/2023] [Indexed: 10/12/2023]
Abstract
Renal ischemia/reperfusion (I/R) injury is a local sterile inflammatory response driven by innate immunity. Emerging data have revealed that complement and neutrophils contribute to hyperinflammation and oxidative stress in I/R induced acute kidney injury (AKI). However, the interplay between the C3a/C3aR axis and neutrophil extracellular traps (NETs) is imcompletelyunderstood. Here, we utilize genetically engineered mouse models and pharmacological inhibitors to investigate this association. The C3a/C3aR axis is found to promote neutrophil recruitment and NETs formation, thereby accelerating renal damage and dysfunction. Knockout of C3aR restores NETs release and improves renal function after I/R injury. Antibody-mediated blockade of NETs can also significantly ameliorate renal tubular injury and inflammation. Consistently, under stimulation by C3a, neutrophils are activated to promote NETs formation and subsequent renal tubular epithelial cell damage, and blocking C3aR rescued the injury. Interfering with reactive oxygen species (ROS) accumulation in neutrophils by antioxidant treatment significantly attenuates NETs formation. Our findings demonstrate that the C3a/C3aR-ROS-NETs axis constitutes a promising target for prevention or treatment of renal I/R injury.
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Affiliation(s)
- Xiaoting Wu
- Department of Nephrology, Blood Purification Research Center, the First Affiliated Hospital, Fujian Medical University, Fuzhou, 350005, China
- Fujian Clinical Research Center for Metabolic Chronic Kidney Disease, the First Affiliated Hospital, Fujian Medical University, Fuzhou, 350005, China
- Department of Nephrology, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, 350212, China
| | - Danyu You
- Department of Nephrology, Blood Purification Research Center, the First Affiliated Hospital, Fujian Medical University, Fuzhou, 350005, China
- Fujian Clinical Research Center for Metabolic Chronic Kidney Disease, the First Affiliated Hospital, Fujian Medical University, Fuzhou, 350005, China
- Department of Nephrology, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, 350212, China
| | - Maoen Pan
- Department of General Surgery, Fujian Medical University Union Hospital, Fuzhou, 350001, China
| | - Mengjie Weng
- Department of Nephrology, Blood Purification Research Center, the First Affiliated Hospital, Fujian Medical University, Fuzhou, 350005, China
- Fujian Clinical Research Center for Metabolic Chronic Kidney Disease, the First Affiliated Hospital, Fujian Medical University, Fuzhou, 350005, China
- Department of Nephrology, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, 350212, China
| | - Qionghong Xie
- Department of Nephrology, Huashan Hospital, Fudan University, Shanghai, 200040, China
| | - Yi Guan
- Department of Nephrology, Huashan Hospital, Fudan University, Shanghai, 200040, China
| | - Jing Zheng
- Department of Nephrology, Blood Purification Research Center, the First Affiliated Hospital, Fujian Medical University, Fuzhou, 350005, China
- Fujian Clinical Research Center for Metabolic Chronic Kidney Disease, the First Affiliated Hospital, Fujian Medical University, Fuzhou, 350005, China
- Department of Nephrology, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, 350212, China
| | - Songhua Lin
- Department of Nephrology, Blood Purification Research Center, the First Affiliated Hospital, Fujian Medical University, Fuzhou, 350005, China
- Fujian Clinical Research Center for Metabolic Chronic Kidney Disease, the First Affiliated Hospital, Fujian Medical University, Fuzhou, 350005, China
- Department of Nephrology, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, 350212, China
| | - Xiaohong Zhang
- Department of Nephrology, Blood Purification Research Center, the First Affiliated Hospital, Fujian Medical University, Fuzhou, 350005, China
- Fujian Clinical Research Center for Metabolic Chronic Kidney Disease, the First Affiliated Hospital, Fujian Medical University, Fuzhou, 350005, China
- Department of Nephrology, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, 350212, China
| | - Chuanming Hao
- Department of Nephrology, Huashan Hospital, Fudan University, Shanghai, 200040, China.
| | - Jianxin Wan
- Department of Nephrology, Blood Purification Research Center, the First Affiliated Hospital, Fujian Medical University, Fuzhou, 350005, China.
- Fujian Clinical Research Center for Metabolic Chronic Kidney Disease, the First Affiliated Hospital, Fujian Medical University, Fuzhou, 350005, China.
- Department of Nephrology, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, 350212, China.
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18
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Liu D, Xiao M, Zhou J, Wang P, Peng J, Mao W, Hu Y, Liu Y, Yin J, Ke L, Li W. PFKFB3 promotes sepsis-induced acute lung injury by enhancing NET formation by CXCR4 hi neutrophils. Int Immunopharmacol 2023; 123:110737. [PMID: 37543012 DOI: 10.1016/j.intimp.2023.110737] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 07/25/2023] [Accepted: 07/28/2023] [Indexed: 08/07/2023]
Abstract
CXCR4hi neutrophils, which are a subset of neutrophils with high CXCR4 expression, are important contributors to sepsis-induced acute lung injury (ALI). PFKFB3, a key glycolysis gene, plays an essential role in neutrophil inflammatory activation. However, the specific involvement of PFKFB3 in sepsis-induced ALI remains unclear. Here, we observed that PFKFB3 was upregulated in CXCR4hi neutrophils and facilitated sepsis-induced ALI. Mechanistically, we observed that PFKFB3 promoted sepsis-induced ALI by enhancing neutrophil extracellular trap (NET) formation by CXCR4hi neutrophils. Further study indicated that PFKFB3 promoted NET formation by upregulating glycolytic metabolism in CXCR4hi neutrophils. In summary, our study uncovered a new mechanism by which CXCR4hi neutrophils trigger sepsis-induced ALI by promoting NET formation, which is supported by PFKFB3-mediated glycolytic metabolism.
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Affiliation(s)
- Dadong Liu
- Department of Critical Care Medicine, Jinling Hospital, Medical School of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Min Xiao
- Department of Critical Care Medicine, Jinling Hospital, Medical School of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Jing Zhou
- Department of Critical Care Medicine, Jinling Hospital, Medical School of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Peng Wang
- Department of Critical Care Medicine, Jinling Hospital, Medical School of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Jingwen Peng
- Center of Severe Acute Pancreatitis (CSAP), Department of Critical Care Medicine, Jinling Hospital, Medical School of Nanjing University, Nanjing, Jiangsu, China
| | - Wenjian Mao
- Center of Severe Acute Pancreatitis (CSAP), Department of Critical Care Medicine, Jinling Hospital, Medical School of Nanjing University, Nanjing, Jiangsu, China
| | - Yuepeng Hu
- Center of Severe Acute Pancreatitis (CSAP), Department of Critical Care Medicine, Jinling Hospital, Medical School of Nanjing University, Nanjing, Jiangsu, China
| | - Yuxiu Liu
- Department of Biostatistics, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Jiangtao Yin
- Department of Critical Care Medicine, Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China; Digestive Disease Institute, Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China.
| | - Lu Ke
- Center of Severe Acute Pancreatitis (CSAP), Department of Critical Care Medicine, Jinling Hospital, Medical School of Nanjing University, Nanjing, Jiangsu, China.
| | - Weiqin Li
- Department of Critical Care Medicine, Jinling Hospital, Medical School of Nanjing Medical University, Nanjing, Jiangsu, China.
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19
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Curren B, Ahmed T, Howard DR, Ashik Ullah M, Sebina I, Rashid RB, Al Amin Sikder M, Namubiru P, Bissell A, Ngo S, Jackson DJ, Toussaint M, Edwards MR, Johnston SL, McSorley HJ, Phipps S. IL-33-induced neutrophilic inflammation and NETosis underlie rhinovirus-triggered exacerbations of asthma. Mucosal Immunol 2023; 16:671-684. [PMID: 37506849 DOI: 10.1016/j.mucimm.2023.07.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 06/04/2023] [Accepted: 07/19/2023] [Indexed: 07/30/2023]
Abstract
Rhinovirus-induced neutrophil extracellular traps (NETs) contribute to acute asthma exacerbations; however, the molecular factors that trigger NETosis in this context remain ill-defined. Here, we sought to implicate a role for IL-33, an epithelial cell-derived alarmin rapidly released in response to infection. In mice with chronic experimental asthma (CEA), but not naïve controls, rhinovirus inoculation induced an early (1 day post infection; dpi) inflammatory response dominated by neutrophils, neutrophil-associated cytokines (IL-1α, IL-1β, CXCL1), and NETosis, followed by a later, type-2 inflammatory phase (3-7 dpi), characterised by eosinophils, elevated IL-4 levels, and goblet cell hyperplasia. Notably, both phases were ablated by HpARI (Heligmosomoides polygyrus Alarmin Release Inhibitor), which blocks IL-33 release and signalling. Instillation of exogenous IL-33 recapitulated the rhinovirus-induced early phase, including the increased presence of NETs in the airway mucosa, in a PAD4-dependent manner. Ex vivo IL-33-stimulated neutrophils from mice with CEA, but not naïve mice, underwent NETosis and produced greater amounts of IL-1α/β, IL-4, and IL-5. In nasal samples from rhinovirus-infected people with asthma, but not healthy controls, IL-33 levels correlated with neutrophil elastase and dsDNA. Our findings suggest that IL-33 blockade ameliorates the severity of an asthma exacerbation by attenuating neutrophil recruitment and the downstream generation of NETs.
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Affiliation(s)
- Bodie Curren
- QIMR Berghofer Medical Research Institute, Herston, Queensland 4006, Australia; School of Biomedical Sciences, The University of Queensland, Queensland 4072, Australia
| | - Tufael Ahmed
- QIMR Berghofer Medical Research Institute, Herston, Queensland 4006, Australia; School of Biomedical Sciences, Queensland University of Technology, Queensland 4000, Australia
| | - Daniel R Howard
- QIMR Berghofer Medical Research Institute, Herston, Queensland 4006, Australia; School of Biomedical Sciences, The University of Queensland, Queensland 4072, Australia
| | - Md Ashik Ullah
- QIMR Berghofer Medical Research Institute, Herston, Queensland 4006, Australia
| | - Ismail Sebina
- QIMR Berghofer Medical Research Institute, Herston, Queensland 4006, Australia; School of Biomedical Sciences, The University of Queensland, Queensland 4072, Australia; School of Biomedical Sciences, Queensland University of Technology, Queensland 4000, Australia
| | - Ridwan B Rashid
- QIMR Berghofer Medical Research Institute, Herston, Queensland 4006, Australia; School of Biomedical Sciences, The University of Queensland, Queensland 4072, Australia
| | - Md Al Amin Sikder
- QIMR Berghofer Medical Research Institute, Herston, Queensland 4006, Australia; School of Biomedical Sciences, The University of Queensland, Queensland 4072, Australia
| | - Patricia Namubiru
- QIMR Berghofer Medical Research Institute, Herston, Queensland 4006, Australia; School of Biomedical Sciences, The University of Queensland, Queensland 4072, Australia
| | - Alec Bissell
- QIMR Berghofer Medical Research Institute, Herston, Queensland 4006, Australia
| | - Sylvia Ngo
- QIMR Berghofer Medical Research Institute, Herston, Queensland 4006, Australia
| | - David J Jackson
- School of Immunology & Microbial Sciences, King's College London, London, UK; National Heart and Lung Institute, Imperial College London, London, UK
| | - Marie Toussaint
- National Heart and Lung Institute, Imperial College London, London, UK
| | - Michael R Edwards
- National Heart and Lung Institute, Imperial College London, London, UK
| | | | - Henry J McSorley
- Division of Cell Signalling and Immunology, School of Life Sciences, University of Dundee, Dundee, UK
| | - Simon Phipps
- QIMR Berghofer Medical Research Institute, Herston, Queensland 4006, Australia; School of Biomedical Sciences, The University of Queensland, Queensland 4072, Australia; School of Biomedical Sciences, Queensland University of Technology, Queensland 4000, Australia; Australian Infectious Diseases Research Centre, The University of Queensland, 4072 Queensland, Australia.
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20
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Chen J, Bai Y, Xue K, Li Z, Zhu Z, Li Q, Yu C, Li B, Shen S, Qiao P, Li C, Luo Y, Qiao H, Dang E, Yin W, Gudjonsson JE, Wang G, Shao S. CREB1-driven CXCR4 hi neutrophils promote skin inflammation in mouse models and human patients. Nat Commun 2023; 14:5894. [PMID: 37736772 PMCID: PMC10516899 DOI: 10.1038/s41467-023-41484-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Accepted: 09/06/2023] [Indexed: 09/23/2023] Open
Abstract
Neutrophils have a pathogenic function in inflammation via releasing pro-inflammatory mediators or neutrophil extracellular traps (NETs). However, their heterogeneity and pro-inflammatory mechanisms remain unclear. Here, we demonstrate that CXCR4hi neutrophils accumulate in the blood and inflamed skin in human psoriasis, and correlate with disease severity. Compared to CXCR4lo neutrophils, CXCR4hi neutrophils have enhanced NETs formation, phagocytic function, neutrophil degranulation, and overexpression of pro-inflammatory cytokines and chemokines in vitro. This is accompanied by a metabolic shift in CXCR4hi neutrophils toward glycolysis and lactate release, thereby promoting vascular permeability and remodeling. CXCR4 expression in neutrophils is dependent on CREB1, a transcription factor activated by TNF and CXCL12, and regulated by de novo synthesis. In vivo, CXCR4hi neutrophil infiltration amplifies skin inflammation, whereas blockade of CXCR4hi neutrophils through CXCR4 or CXCL12 inhibition leads to suppression of immune responses. In this work, our study identifies CREB1 as a critical regulator of CXCR4hi neutrophil development and characterizes the contribution of CXCR4hi neutrophils to vascular remodeling and inflammatory responses in skin.
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Affiliation(s)
- Jiaoling Chen
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Yaxing Bai
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Ke Xue
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Zhiguo Li
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Zhenlai Zhu
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Qingyang Li
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Chen Yu
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Bing Li
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Shengxian Shen
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Pei Qiao
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Caixia Li
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Yixin Luo
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Hongjiang Qiao
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Erle Dang
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Wen Yin
- Department of Transfusion Medicine, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Johann E Gudjonsson
- Department of Dermatology, University of Michigan, Ann Arbor, MI, 48109, USA.
| | - Gang Wang
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China.
| | - Shuai Shao
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China.
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21
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Halloun B, Hashai K, Pinto N, Musai N, Klein Y, Polak D. Neutrophils modulate natural killer-mediated osteoclastogenesis during Aggregatibacteractinomycetemcomitans (JP2 clone) infection. iScience 2023; 26:106430. [PMID: 37588165 PMCID: PMC10425674 DOI: 10.1016/j.isci.2023.106430] [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: 05/31/2022] [Revised: 10/17/2022] [Accepted: 03/13/2023] [Indexed: 03/18/2023] Open
Abstract
The study investigates the interplay of neutrophils and natural-killer cells (NK) in mediating osseoresorption during infection of molar-incisor-pattern-periodontitis (MIPP). Human neutrophils from periodontally healthy and MIPP patients were inoculated with the periopathogen Aggregatibacter-actinomycetemcomitans (JP2) and their supernatants were exposed to NK to study their function and osteoclastogenesis promotion. A mouse MIPP model was used to compare disease progression following NK versus neutrophils depletion. The exposure of primary NK to supernatants of neutrophils inoculated with JP2 led to NK cell arrest and activation with enhanced osteoprotegerin expression. Incubation of monocytes with NK led to osteoclastogenesis, whereas NK that were pre-exposed to healthy neutrophil supernatant showed reduced osteoclastogenesis. In mice, NK depletion led to the similar bone phenotype as the neutrophil's depletion highlighting their role on osseoprotection. The present study portrays a key crosstalk between neutrophils and NK cells during JP2 infection as a central mechanism that regulates bone loss.
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Affiliation(s)
- Bshara Halloun
- Department of Oral and Maxillofacial Surgery, Hebrew University–Hadassah, Jerusalem, Israel
| | - Koren Hashai
- Department of Periodontology, Hebrew University-Hadassah Faculty of Dental Medicine, Israel
| | - Noy Pinto
- Department of Orthodontics, Hebrew University-Hadassah Faculty of Dental Medicine, Israel
| | - Nadav Musai
- Department of Periodontology, Hebrew University-Hadassah Faculty of Dental Medicine, Israel
| | - Yehuda Klein
- Department of Orthodontics, Hebrew University-Hadassah Faculty of Dental Medicine, Israel
| | - David Polak
- Department of Periodontology, Hebrew University-Hadassah Faculty of Dental Medicine, Israel
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22
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Peters K, Ernst S, Peters M. Interaction of Interleukin-17A with a Th2 Response in a Mouse Model of Allergic Airway Inflammation. Cells 2023; 12:1774. [PMID: 37443808 PMCID: PMC10340318 DOI: 10.3390/cells12131774] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Accepted: 06/27/2023] [Indexed: 07/15/2023] Open
Abstract
BACKGROUND A total of 262 million people worldwide suffer from asthma and 461000 people died from it in 2019. Asthma is a disease with different endotypes defined by the granulocytes found in the asthmatic lung. In allergic asthma, the eosinophilic endotype is present, driven by a TH2 response. A TH17 immune response leads to the neutrophil endotype. This often causes uncontrolled asthma and is triggered by pollutants, microbes, and oxidative stress. It has been described that a significant number of patients with eosinophilic asthma develop mixed granulocytic asthma over time. The severity of asthma in the mixed endotype is related to the proportion of neutrophils in the lungs. PURPOSE In this report, we address the question of how a TH2 response interacts with IL-17A in allergic asthma. METHODS To this end, we used a mouse model to induce allergic asthma followed by an aerosol challenge with ovalbumin. To investigate the role of IL-17A, we administered IL-17A intranasally during the challenge phase. RESULTS IL-17A alone did not elicit an immune response, whereas in combination with allergic asthma, it resulted in a shift of the asthmatic endotype from eosinophilic to neutrophilic. TGFβ1 was increased in these lungs compared to asthmatic lungs without IL-17A, as was the expression of the IL-17A receptor subunits IL-17RA and IL-17RC. In cultures with human cells, we also found that IL-17A increased the expression of its receptors only in combination with IL-13. We also found this effect for IL-8, which attracts neutrophils in humans. CONCLUSIONS The TH2 response increased the sensitivity to IL-17A in a mouse asthma model as well as in human cell lines.
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Affiliation(s)
- Karin Peters
- Department of Molecular Immunology, Ruhr-University Bochum, D-44780 Bochum, Germany
| | - Stefanie Ernst
- Department of Experimental Pneumology, Ruhr-University Bochum, D-44780 Bochum, Germany
| | - Marcus Peters
- Department of Molecular Immunology, Ruhr-University Bochum, D-44780 Bochum, Germany
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23
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De Volder J, Bontinck A, De Grove K, Dirven I, Haelterman V, Joos G, Brusselle G, Maes T. Trajectory of neutrophilic responses in a mouse model of pollutant-aggravated allergic asthma. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 329:121722. [PMID: 37105460 DOI: 10.1016/j.envpol.2023.121722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 04/20/2023] [Accepted: 04/24/2023] [Indexed: 05/06/2023]
Abstract
Experimental studies suggest that neutrophils could contribute to allergic asthma pathogenesis, that is mainly driven by type 2 immunity. Inhalation of diesel exhaust particles (DEP) is implicated in both exacerbation and development of asthma. Since exposure to DEP is associated with a neutrophilic component, we aimed to investigate how exposure to the combination of allergens and DEP modulates neutrophilic responses. Human bronchial epithelial cells (HBEC) were exposed to house dust mite (HDM), DEP or HDM + DEP in vitro to determine the expression of neutrophil-recruiting chemokines. Female (C57BL/6 J) mice were intranasally instilled with saline, DEP, HDM or combined HDM + DEP for 3 weeks (subacute) or 6 weeks (chronic). The neutrophilic responses were determined in lung tissue and bronchoalveolar lavage fluid (BALF). Simultaneous exposure to HDM + DEP resulted in increased CXCL1 and CXCL8 mRNA expression by HBEC in vitro. In mice, subacute exposure to HDM + DEP induced a strong mixed eosinophilic/neutrophilic inflammation in BALF and lung and was associated with higher expression of neutrophil-attracting chemokines and NET formation compared to the sole exposures. After chronic HDM + DEP exposure, a similar neutrophilic response was observed, however the NET formation was less pronounced. Interestingly, the increase of BALF eosinophils was also significantly attenuated after chronic HDM + DEP exposure compared to the subacute exposure. Subacute and chronic HDM + DEP exposure induced goblet cell hyperplasia and airway hyperresponsiveness. Our data suggest a role for neutrophils and NETs in pollutant-aggravated eosinophilic allergic asthma. Moreover, subacute exposure to HDM + DEP induces a mixed eosinophilic/neutrophilic response whereas upon chronic HDM + DEP exposure there is a shift in inflammatory response with a more prominent neutrophilic component.
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Affiliation(s)
- Joyceline De Volder
- Ghent University, Ghent University Hospital, Laboratory for Translational Research in Obstructive Pulmonary Diseases, Department of Respiratory Medicine, Ghent, Belgium
| | - Annelies Bontinck
- Ghent University, Ghent University Hospital, Laboratory for Translational Research in Obstructive Pulmonary Diseases, Department of Respiratory Medicine, Ghent, Belgium
| | - Katrien De Grove
- Ghent University, Ghent University Hospital, Laboratory for Translational Research in Obstructive Pulmonary Diseases, Department of Respiratory Medicine, Ghent, Belgium
| | - Iris Dirven
- Ghent University, Ghent University Hospital, Laboratory for Translational Research in Obstructive Pulmonary Diseases, Department of Respiratory Medicine, Ghent, Belgium
| | - Valerie Haelterman
- Ghent University, Ghent University Hospital, Laboratory for Translational Research in Obstructive Pulmonary Diseases, Department of Respiratory Medicine, Ghent, Belgium
| | - Guy Joos
- Ghent University, Ghent University Hospital, Laboratory for Translational Research in Obstructive Pulmonary Diseases, Department of Respiratory Medicine, Ghent, Belgium
| | - Guy Brusselle
- Ghent University, Ghent University Hospital, Laboratory for Translational Research in Obstructive Pulmonary Diseases, Department of Respiratory Medicine, Ghent, Belgium
| | - Tania Maes
- Ghent University, Ghent University Hospital, Laboratory for Translational Research in Obstructive Pulmonary Diseases, Department of Respiratory Medicine, Ghent, Belgium.
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24
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Calvert BA, Quiroz EJ, Lorenzana Z, Doan N, Kim S, Senger CN, Anders JJ, Wallace WD, Salomon MP, Henley J, Ryan AL. Neutrophilic inflammation promotes SARS-CoV-2 infectivity and augments the inflammatory responses in airway epithelial cells. Front Immunol 2023; 14:1112870. [PMID: 37006263 PMCID: PMC10061003 DOI: 10.3389/fimmu.2023.1112870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Accepted: 03/03/2023] [Indexed: 03/18/2023] Open
Abstract
Introduction In response to viral infection, neutrophils release inflammatory mediators as part of the innate immune response, contributing to pathogen clearance through virus internalization and killing. Pre- existing co-morbidities correlating to incidence to severe COVID-19 are associated with chronic airway neutrophilia. Furthermore, examination of COVID-19 explanted lung tissue revealed a series of epithelial pathologies associated with the infiltration and activation of neutrophils, indicating neutrophil activity in response to SARS-CoV-2 infection. Methods To determine the impact of neutrophil-epithelial interactions on the infectivity and inflammatory responses to SARS-CoV-2 infection, we developed a co-culture model of airway neutrophilia. This model was infected with live SARS-CoV-2 virus the epithelial response to infection was evaluated. Results SARS-CoV-2 infection of airway epithelium alone does not result in a notable pro-inflammatory response from the epithelium. The addition of neutrophils induces the release of proinflammatory cytokines and stimulates a significantly augmented proinflammatory response subsequent SARS-CoV-2 infection. The resulting inflammatory responses are polarized with differential release from the apical and basolateral side of the epithelium. Additionally, the integrity of the \epithelial barrier is impaired with notable epithelial damage and infection of basal stem cells. Conclusions This study reveals a key role for neutrophil-epithelial interactions in determining inflammation and infectivity.
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Affiliation(s)
- Ben A. Calvert
- Hastings Center for Pulmonary Research, Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of Southern California, Los Angeles, CA, United States
- Department of Anatomy and Cell Biology, Carver College of Medicine, University of Iowa, Iowa, IA, United States
| | - Erik J. Quiroz
- Hastings Center for Pulmonary Research, Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of Southern California, Los Angeles, CA, United States
- Department of Anatomy and Cell Biology, Carver College of Medicine, University of Iowa, Iowa, IA, United States
- Department of Stem Cell Biology and Regenerative Medicine, University of Southern California, Los Angeles, CA, United States
| | - Zareeb Lorenzana
- Hastings Center for Pulmonary Research, Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of Southern California, Los Angeles, CA, United States
| | - Ngan Doan
- Hastings Center for Pulmonary Research, Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of Southern California, Los Angeles, CA, United States
| | - Seongjae Kim
- The Salk Institute of Biological Studies, La Jolla, CA, United States
| | - Christiana N. Senger
- Hastings Center for Pulmonary Research, Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of Southern California, Los Angeles, CA, United States
| | - Jeffrey J. Anders
- Department of Anatomy and Cell Biology, Carver College of Medicine, University of Iowa, Iowa, IA, United States
| | - Wiliam D. Wallace
- Department of Pathology, University of Southern California, Los Angeles, CA, United States
| | - Matthew P. Salomon
- Department of Medicine, University of Southern California, Los Angeles, CA, United States
| | - Jill Henley
- Department of Medicine, University of Southern California, Los Angeles, CA, United States
| | - Amy L. Ryan
- Hastings Center for Pulmonary Research, Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of Southern California, Los Angeles, CA, United States
- Department of Anatomy and Cell Biology, Carver College of Medicine, University of Iowa, Iowa, IA, United States
- Department of Stem Cell Biology and Regenerative Medicine, University of Southern California, Los Angeles, CA, United States
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25
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MafB-restricted local monocyte proliferation precedes lung interstitial macrophage differentiation. Nat Immunol 2023; 24:827-840. [PMID: 36928411 PMCID: PMC10154211 DOI: 10.1038/s41590-023-01468-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Accepted: 02/15/2023] [Indexed: 03/18/2023]
Abstract
Resident tissue macrophages (RTMs) are differentiated immune cells that populate distinct niches and exert important tissue-supportive functions. RTM maintenance is thought to rely either on differentiation from monocytes or on RTM self-renewal. Here, we used a mouse model of inducible lung interstitial macrophage (IM) niche depletion and refilling to investigate the development of IMs in vivo. Using time-course single-cell RNA-sequencing analyses, bone marrow chimeras and gene targeting, we found that engrafted Ly6C+ classical monocytes proliferated locally in a Csf1 receptor-dependent manner before differentiating into IMs. The transition from monocyte proliferation toward IM subset specification was controlled by the transcription factor MafB, while c-Maf specifically regulated the identity of the CD206+ IM subset. Our data provide evidence that, in the mononuclear phagocyte system, the ability to proliferate is not merely restricted to myeloid progenitor cells and mature RTMs but is also a tightly regulated capability of monocytes developing into RTMs in vivo.
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26
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Singla A, Reuter S, Taube C, Peters M, Peters K. The molecular mechanisms of remodeling in asthma, COPD and IPF with a special emphasis on the complex role of Wnt5A. Inflamm Res 2023; 72:577-588. [PMID: 36658268 PMCID: PMC10023767 DOI: 10.1007/s00011-023-01692-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 11/28/2022] [Accepted: 01/09/2023] [Indexed: 01/20/2023] Open
Abstract
INTRODUCTION Chronic inflammatory lung diseases are a common cause of suffering and death. Chronic obstructive pulmonary disease (COPD) is the reason for 6% of all deaths worldwide. A total of 262 million people are affected by asthma and 461,000 people died in 2019. Idiopathic pulmonary fibrosis (IPF) is diagnosed in 3 million people worldwide, with an onset over the age of 50 with a mean survival of only 24-30 months. These three diseases have in common that remodeling of the lung tissue takes place, which is responsible for an irreversible decline of lung function. Pathological lung remodeling is mediated by a complex interaction of different, often misguided, repair processes regulated by a variety of mediators. One group of these, as has recently become known, are the Wnt ligands. In addition to their well-characterized role in embryogenesis, this group of glycoproteins is also involved in immunological and structural repair processes. Depending on the combination of the Wnt ligand with its receptors and co-receptors, canonical and noncanonical signaling cascades can be induced. Wnt5A is a mediator that is described mainly in noncanonical Wnt signaling and has been shown to play an important role in different inflammatory diseases and malignancies. OBJECTIVES In this review, we summarize the literature available regarding the role of Wnt5A as an immune modulator and its role in the development of asthma, COPD and IPF. We will focus specifically on what is known about Wnt5A concerning its role in the remodeling processes involved in the chronification of the diseases. CONCLUSION Wnt5A has been shown to be involved in all three inflammatory lung diseases. Since the ligand affects both structural and immunological processes, it is an interesting target for the treatment of lung diseases whose pathology involves a restructuring of the lung tissue triggered in part by an inflammatory immune response.
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Affiliation(s)
- Abhinav Singla
- Department of Pulmonary Medicine, University Medical Center Essen-Ruhrlandklinik, Essen, Germany
- Department of Molecular Immunology, Ruhr-University Bochum, Universitätsstraße 150, 44801, Bochum, Germany
| | - Sebastian Reuter
- Department of Pulmonary Medicine, University Medical Center Essen-Ruhrlandklinik, Essen, Germany
| | - Christian Taube
- Department of Pulmonary Medicine, University Medical Center Essen-Ruhrlandklinik, Essen, Germany
| | - Marcus Peters
- Department of Molecular Immunology, Ruhr-University Bochum, Universitätsstraße 150, 44801, Bochum, Germany.
| | - Karin Peters
- Department of Molecular Immunology, Ruhr-University Bochum, Universitätsstraße 150, 44801, Bochum, Germany
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27
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Peng X, Li Y, Zhao W, Yang S, Huang J, Chen Y, Wang Y, Gong Z, Chen X, Yu C, Cai S, Zhao H. Blockade of neutrophil extracellular traps ameliorates toluene diisocyanate-induced steroid-resistant asthma. Int Immunopharmacol 2023; 117:109719. [PMID: 36827917 DOI: 10.1016/j.intimp.2023.109719] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 12/27/2022] [Accepted: 01/08/2023] [Indexed: 02/24/2023]
Abstract
BACKGROUND AND PURPOSE Toluene diisocyanate (TDI)-induced asthma is characterized by mixed inflammation dominated by neutrophils, and is refractory to steroid treatment. Neutrophil extracellular traps (NETs) play an important role in severe asthma, but their role in TDI-induced asthma models is unclear. This study focused on the role and mechanism of NETs in steroid-resistant TDI-induced asthma. METHODS Induced sputum was collected from 85 asthmatic patients and 25 healthy controls to detect eDNA. A murine TDI-induced asthma model was prepared, and asthmatic mice were given dexamethasone or DNase I. In vitro, the human bronchial epithelial cell line HBE was stimulated with NETs or TDI-human serum albumin (TDI-HSA). RESULTS Asthma patients had higher sputum eDNA compared to healthy subjects. In asthma patients, eDNA was positively correlated with sputum neutrophils, and negatively correlated with FEV1%predicted. Airway inflammation, airway reactivity, Th2 cytokine levels in lymph supernatant, and levels of NETs were significantly increased in the TDI-induced asthmatic mice. These increases were suppressed by DNase I, but not by dexamethasone. Inhibition of NETs improved interleukin (IL)-8 and MKP1 mRNA expression, and reduced phosphorylation of GR-S226 induced by TDI. Inhibition of NETs improved airway epithelial barrier disruption, as well as p38 and ERK signaling pathways in TDI-induced asthmatic mice. In vitro, NETs promoted the expression of IL-8 mRNA in HBE cells, and reduced the expression of MKP1. IL-8 elevation induced by NETs was suppressed by a p38 inhibitor or ERK inhibitor, but not by dexamethasone. Pretreatment with RAGE inhibitor reduced NETs induced p38/ERK phosphorylation and IL-8 levels in HBE cells. CONCLUSION Our data suggest that targeting NETs might effectively improved TDI-induced airway inflammation and airway epithelial barrier function. This may potentially be a treatment for patients with steroid-resistance asthma.
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Affiliation(s)
- Xianru Peng
- Chronic Airways Diseases Laboratory, Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China; Department of Pulmonary and Critical Care Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong 510280, China.
| | - Yuemao Li
- Chronic Airways Diseases Laboratory, Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China.
| | - Wenqu Zhao
- Chronic Airways Diseases Laboratory, Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China.
| | - Shuluan Yang
- Chronic Airways Diseases Laboratory, Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China.
| | - Junwen Huang
- Chronic Airways Diseases Laboratory, Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China.
| | - Ying Chen
- Chronic Airways Diseases Laboratory, Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China.
| | - Yanhong Wang
- Chronic Airways Diseases Laboratory, Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China.
| | - Zhaoqian Gong
- Chronic Airways Diseases Laboratory, Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China.
| | - Xin Chen
- Department of Pulmonary and Critical Care Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong 510280, China.
| | - Changhui Yu
- Chronic Airways Diseases Laboratory, Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China.
| | - Shaoxi Cai
- Chronic Airways Diseases Laboratory, Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China.
| | - Haijin Zhao
- Chronic Airways Diseases Laboratory, Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China.
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Simvastatin Reduces NETosis to Attenuate Severe Asthma by Inhibiting PAD4 Expression. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2023; 2023:1493684. [PMID: 36778209 PMCID: PMC9911252 DOI: 10.1155/2023/1493684] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 10/29/2022] [Accepted: 01/03/2023] [Indexed: 02/05/2023]
Abstract
Objective Patients with severe asthma respond poorly to corticosteroids, and their care accounts for more than 60% of the total costs attributed to asthma. Neutrophils form neutrophil extracellular traps (NETs), which play a crucial role in severe asthma. Statins have shown anti-inflammatory effects by reducing NETosis. In this study, we investigate if simvastatin can attenuate severe asthma by reducing NETosis and the underlying mechanism. Methods Mice were concomitantly sensitized with ovalbumin (OVA), house dust mite (HDM), and lipopolysaccharide (LPS) during sensitization to establish a mouse model of severe asthma with neutrophil predominant inflammation (OVA+LPS mice) and treated with or without simvastatin. In inflammatory response, proportions of Th2, Th17, and Treg cells in lung tissue were detected by flow cytometry, and the levels of cytokines, dsDNA, and MPO-DNA in bronchoalveolar lavage fluid (BALF) were analyzed by ELISA. Citrullinated histone H3 (CitH3) and peptidyl arginine deiminase 4 (PAD4) in lung tissue were determined by Western blot and immunofluorescence imaging. PAD4 mRNA was determined by quantitative PCR (qPCR). HL-60 cells were differentiated into neutrophil-like cells by 1.25% DMSO. The neutrophil-like cells were treated with or without LPS, and simvastatin was then stimulated with PMA. CitH3 and PAD4 expressions were determined. Results Sensitization with OVA, HDM, and LPS resulted in neutrophilic inflammation and the formation of NETs in the lungs. Simvastatin treatment reduced the inflammation score, cytokine levels, total cells, and neutrophil counts in the BALF and reduced proportions of Th2 and Th17 but increased Treg cells in lungs of OVA+LPS mice. Simvastatin-treated OVA+LPS mice show reduced NET formation in BALF and lung tissue compared to control mice. Adoptive transfer of neutrophils was sufficient to restore NETosis and neutrophilic inflammation in simvastatin-treated OVA+LPS mice. Simvastatin reduced PAD4 mRNA and protein expression in lung tissues and neutrophils isolated from lungs of OVA+LPS mice and consequent NET formation. In vitro, simvastatin reduced LPS-induced PAD4 upregulation and NETosis in HL-60-differentiated neutrophil-like cells. Furthermore, PAD4-overexpressed lentiviral transduction was sufficient to restore PAD4 protein expression and NETosis in simvastatin-treated HL-60-differentiated neutrophil-like cells. Conclusions Simvastatin reduces Th17-mediated neutrophilic inflammation and airway hyperreactivity by reducing PAD4 expression and inhibiting NETosis in a mouse model of severe asthma. Severe asthmatic patients with high levels of circulating NETs or sputum NETs may show improved responses to statin treatment.
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Delemarre T, Bachert C. Neutrophilic inflammation in chronic rhinosinusitis. Curr Opin Allergy Clin Immunol 2023; 23:14-21. [PMID: 36539379 DOI: 10.1097/aci.0000000000000868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
PURPOSE OF REVIEW Over the last years, extensive research has been done on neutrophils and their contribution in chronic rhinosinusitis (CRS), and made it clear that they are more than just a bystander in this disease. In this article, we will review all recent publications on this topic and look to what the future hold regarding therapeutics targeting the neutrophilic inflammation in CRS. RECENT FINDINGS Evidence is growing that the presence of neutrophils are associated with a worse disease outcome in certain CRS patient groups. They are highly activated in type 2 inflammations and exhibit damaging properties through their proteases, contributing to the chronicity of the disease. Several recent studies identified useful biomarkers and targets for future therapeutics. SUMMARY The findings we review in this manuscript are of utmost importance in unraveling the complexity of CRS and provide us with the necessary knowledge for future clinical practices.
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Affiliation(s)
- Tim Delemarre
- Upper Airways Research Laboratory, Faculty of Medicine, Ghent University, Ghent, Belgium
| | - Claus Bachert
- Upper Airways Research Laboratory, Faculty of Medicine, Ghent University, Ghent, Belgium
- Division of ENT Diseases, CLINTEC, Karolinska Institute, Stockholm, Sweden
- First Affiliated Hospital, Sun Yat-Sen University, International Airway Research Center, Guangzhou, China
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30
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Aegerter H, Lambrecht BN. The Pathology of Asthma: What Is Obstructing Our View? ANNUAL REVIEW OF PATHOLOGY 2023; 18:387-409. [PMID: 36270294 DOI: 10.1146/annurev-pathol-042220-015902] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Despite the advent of sophisticated and efficient new biologics to treat inflammation in asthma, the disease persists. Even following treatment, many patients still experience the well-known symptoms of wheezing, shortness of breath, and coughing. What are we missing? Here we examine the evidence that mucus plugs contribute to a substantial portion of disease, not only by physically obstructing the airways but also by perpetuating inflammation. In this way, mucus plugs may act as an immunogenic stimulus even in the absence of allergen or with the use of current therapeutics. The alterations of several parameters of mucus biology, driven by type 2 inflammation, result in sticky and tenacious sputum, which represents a potent threat, first due to the difficulties in expectoration and second by acting as a platform for viral, bacterial, or fungal colonization that allows exacerbations. Therefore, in this way, mucus plugs are an overlooked but critical feature of asthmatic airway disease.
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Affiliation(s)
- Helena Aegerter
- Laboratory of Immunoregulation and Mucosal Immunology, VIB-UGent Center for Inflammation Research, Ghent, Belgium; .,Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
| | - Bart N Lambrecht
- Laboratory of Immunoregulation and Mucosal Immunology, VIB-UGent Center for Inflammation Research, Ghent, Belgium; .,Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium.,Department of Pulmonary Medicine, Erasmus MC, Rotterdam, The Netherlands
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31
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Wang M, Gong L, Luo Y, He S, Zhang X, Xie X, Li X, Feng X. Transcriptomic analysis of asthma and allergic rhinitis reveals CST1 as a biomarker of unified airways. Front Immunol 2023; 14:1048195. [PMID: 36733482 PMCID: PMC9888248 DOI: 10.3389/fimmu.2023.1048195] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Accepted: 01/03/2023] [Indexed: 01/19/2023] Open
Abstract
Background Allergic rhinitis (AR) is an important risk factor for the development of asthma. The "unified airway" theory considers the upper and lower airways as a morphological and functional whole. However, studies exploring biomarkers linking the upper and lower airways in allergic disease are lacking, which may provide insight into the mechanisms underlying AR comorbid asthma. Purpose To integrate bioinformatics techniques to explore biomarkers in airway allergic diseases, and to provide a molecular etiology profile for preventing the development of asthma in AR patients. Methods Biomarkers were screened by identifying key genes common between AR and asthma through WGCNA and differential gene analysis. GO and KEGG analyses were performed using DAVID. Immuno-infiltration analysis was performed by CIBERSORTx. The predictive value of CST1 to distinguish Th2-high asthma was determined by ROC curves. GSEA was used to analyze the signaling pathways involved in CST1. TargetScan and miRNet were combined with GSE142237 to construct ceRNA network. CMap was used to explore potential therapeutic drugs. Results Validation of datasets showed that CST1 was the only gene that was up-regulated in both upper and lower airways in patients with AR and asthma, and correlation heatmaps showed that CST1 was the gene with the highest sum of correlation coefficients. GO and KEGG analysis demonstrated that the lower airways of AR patients were mainly involved in inflammatory and immune responses, similar to asthma. Immune infiltration showed that CST1 was mainly positively correlated with activated CD4 memory T cells. According to the ROC curve, CST1 showed excellent diagnostic efficiency for Th2-high asthma. GSEA indicated that CST1 was involved in the FcϵRI signaling pathway and O-glycan biosynthesis. A ceRNA network including the lncRNAs KCNQ1OT1 and NEAT1 was constructed. Four drugs, including verrucarin-A, had the potential to prevent the development of asthma in AR patients. In addition, corticosteroids were found to downregulate CST1 expression. Conclusion CST1 plays a key role in the development of AR comorbid asthma and may be a biomarker for airway allergic diseases. Targeted treatment of CST1 has the potential to prevent the development of asthma in AR patients and deserves further study.
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Affiliation(s)
| | | | | | | | | | | | | | - Xin Feng
- *Correspondence: Xin Feng, ; Xuezhong Li,
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32
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Britt RD, Porter N, Grayson MH, Gowdy KM, Ballinger M, Wada K, Kim HY, Guerau-de-Arellano M. Sterols and immune mechanisms in asthma. J Allergy Clin Immunol 2023; 151:47-59. [PMID: 37138729 PMCID: PMC10151016 DOI: 10.1016/j.jaci.2022.09.025] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
The field of sterol and oxysterol biology in lung disease has recently gained attention, revealing a unique need for sterol uptake and metabolism in the lung. The presence of cholesterol transport, biosynthesis, and sterol/oxysterol-mediated signaling in immune cells suggests a role in immune regulation. In support of this idea, statin drugs that inhibit the cholesterol biosynthesis rate-limiting step enzyme, hydroxymethyl glutaryl coenzyme A reductase, show immunomodulatory activity in several models of inflammation. Studies in human asthma reveal contradicting results, whereas promising retrospective studies suggest benefits of statins in severe asthma. Here, we provide a timely review by discussing the role of sterols in immune responses in asthma, analytical tools to evaluate the role of sterols in disease, and potential mechanistic pathways and targets relevant to asthma. Our review reveals the importance of sterols in immune processes and highlights the need for further research to solve critical gaps in the field.
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Affiliation(s)
- Rodney D. Britt
- Center for Perinatal Research, The Abigail Wexner Research Institute at Nationwide Children’s Hospital, Columbus
- Department of Pediatrics, The Ohio State University, Columbus
| | - Ned Porter
- Department of Chemistry and Vanderbilt Institute of Chemical Biology, Vanderbilt University, Nashville
| | - Mitchell H. Grayson
- Center for Clinical and Translational Research, The Abigail Wexner Research Institute at Nationwide Children’s Hospital, Columbus
- Division of Allergy and Immunology, Department of Pediatrics, Nationwide Children’s Hospital, Columbus
| | - Kymberly M. Gowdy
- Division of Pulmonary, Critical Care and Sleep Medicine, College of Medicine, Wexner Medical Center, Columbus
| | - Megan Ballinger
- Division of Pulmonary, Critical Care and Sleep Medicine, College of Medicine, Wexner Medical Center, Columbus
| | - Kara Wada
- Department of Otolaryngology, Wexner Medical Center, Columbus
| | - Hye-Young Kim
- Department of Chemistry and Vanderbilt Institute of Chemical Biology, Vanderbilt University, Nashville
| | - Mireia Guerau-de-Arellano
- School of Health and Rehabilitation Sciences, Division of Medical Laboratory Science, College of Medicine, Wexner Medical Center, Columbus
- Institute for Behavioral Medicine Research, The Ohio State University, Columbus
- Department of Microbial Infection and Immunity, The Ohio State University, Columbus
- Department of Neuroscience, The Ohio State University, Columbus
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Locally organised and activated Fth1 hi neutrophils aggravate inflammation of acute lung injury in an IL-10-dependent manner. Nat Commun 2022; 13:7703. [PMID: 36513690 PMCID: PMC9745290 DOI: 10.1038/s41467-022-35492-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2021] [Accepted: 12/06/2022] [Indexed: 12/14/2022] Open
Abstract
Acute respiratory distress syndrome (ARDS) is a common respiratory critical syndrome with no effective therapeutic intervention. Neutrophils function in the overwhelming inflammatory process of acute lung injury (ALI) caused by ARDS; however, the phenotypic heterogeneity of pulmonary neutrophils in ALI/ARDS remains largely unknown. Here, using single-cell RNA sequencing, we identify two transcriptionally and functionally heterogeneous neutrophil populations (Fth1hi Neu and Prok2hi Neu) with distinct locations in LPS-induced ALI mouse lungs. Exposure to LPS promotes the Fth1hi Neu subtype, with more inflammatory factors, stronger antioxidant, and decreased apoptosis under the regulation of interleukin-10. Furthermore, prolonged retention of Fth1hi Neu within lung tissue aggravates inflammatory injury throughout the development of ALI/ARDS. Notably, ARDS patients have high ratios of Fth1 to Prok2 expression in pulmonary neutrophils, suggesting that the Fth1hi Neu population may promote the pathological development and provide a marker of poor outcome.
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Tang W, Li M, Teng F, Cui J, Dong J, Wang W. Single-cell RNA-sequencing in asthma research. Front Immunol 2022; 13:988573. [PMID: 36524132 PMCID: PMC9744750 DOI: 10.3389/fimmu.2022.988573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 11/15/2022] [Indexed: 11/30/2022] Open
Abstract
Asthma is a complex and heterogeneous disease with multicellular involvement, and knowledge gaps remain in our understanding of the pathogenesis of asthma. Efforts are still being made to investigate the immune pathogenesis of asthma in order to identify possible targets for prevention. Single cell RNA sequencing (scRNA-seq) technology is a useful tool for exploring heterogeneous diseases, identifying rare cell types and distinct cell subsets, enabling elucidation of key processes of cell differentiation, and understanding regulatory gene networks that predict immune function. In this article, we provide an overview of the importance of scRNA-seq for asthma research, followed by an in-depth discussion of the results in recent years, in order to provide new ideas for the pathogenesis, drug development and treatment of asthma.
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Affiliation(s)
- Weifeng Tang
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai, China,The Institutes of Integrative Medicine, Fudan University, Shanghai, China
| | - Mihui Li
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai, China,The Institutes of Integrative Medicine, Fudan University, Shanghai, China
| | - Fangzhou Teng
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai, China,The Institutes of Integrative Medicine, Fudan University, Shanghai, China
| | - Jie Cui
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai, China,The Institutes of Integrative Medicine, Fudan University, Shanghai, China
| | - Jingcheng Dong
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai, China,The Institutes of Integrative Medicine, Fudan University, Shanghai, China,*Correspondence: Wenqian Wang, ; Jingcheng Dong,
| | - Wenqian Wang
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai, China,The Institutes of Integrative Medicine, Fudan University, Shanghai, China,*Correspondence: Wenqian Wang, ; Jingcheng Dong,
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35
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Neutrophil Extracellular Traps in Asthma: Friends or Foes? Cells 2022; 11:cells11213521. [PMID: 36359917 PMCID: PMC9654069 DOI: 10.3390/cells11213521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 11/04/2022] [Accepted: 11/05/2022] [Indexed: 11/09/2022] Open
Abstract
Asthma is a chronic inflammatory disease characterized by variable airflow limitation and airway hyperresponsiveness. A plethora of immune and structural cells are involved in asthma pathogenesis. The roles of neutrophils and their mediators in different asthma phenotypes are largely unknown. Neutrophil extracellular traps (NETs) are net-like structures composed of DNA scaffolds, histones and granular proteins released by activated neutrophils. NETs were originally described as a process to entrap and kill a variety of microorganisms. NET formation can be achieved through a cell-death process, termed NETosis, or in association with the release of DNA from viable neutrophils. NETs can also promote the resolution of inflammation by degrading cytokines and chemokines. NETs have been implicated in the pathogenesis of various non-infectious conditions, including autoimmunity, cancer and even allergic disorders. Putative surrogate NET biomarkers (e.g., double-strand DNA (dsDNA), myeloperoxidase-DNA (MPO-DNA), and citrullinated histone H3 (CitH3)) have been found in different sites/fluids of patients with asthma. Targeting NETs has been proposed as a therapeutic strategy in several diseases. However, different NETs and NET components may have alternate, even opposite, consequences on inflammation. Here we review recent findings emphasizing the pathogenic and therapeutic potential of NETs in asthma.
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36
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Xia M, Xu F, Ni H, Wang Q, Zhang R, Lou Y, Zhou J. Neutrophil activation and NETosis are the predominant drivers of airway inflammation in an OVA/CFA/LPS induced murine model. Respir Res 2022; 23:289. [PMID: 36271366 PMCID: PMC9587569 DOI: 10.1186/s12931-022-02209-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Accepted: 10/03/2022] [Indexed: 12/03/2022] Open
Abstract
Background Asthma is one of the most common chronic diseases that affects more than 300 million people worldwide. Though most asthma can be well controlled, individuals with severe asthma experience recurrent exacerbations and impose a substantial economic burden on healthcare system. Neutrophil inflammation often occurs in patients with severe asthma who have poor response to glucocorticoids, increasing the difficulty of clinical treatment. Methods We established several neutrophil-dominated allergic asthma mouse models, and analyzed the airway hyperresponsiveness, airway inflammation and lung pathological changes. Neutrophil extracellular traps (NETs) formation was analyzed using confocal microscopy and western blot. Results We found that the ovalbumin (OVA)/complete Freund’s adjuvant (CFA)/low-dose lipopolysaccharide (LPS)-induced mouse model best recapitulated the complex alterations in the airways of human severe asthmatic patients. We also observed OVA/CFA/LPS-exposed mice produced large quantities of neutrophil extracellular traps (NETs) in lung tissue and bone marrow neutrophils. Furthermore, we found that reducing the production of NETs or increasing the degradation of NETs can reduce airway inflammation and airway hyperresponsiveness. Conclusion Our findings identify a novel mouse model of neutrophilic asthma. We have also identified NETs play a significant role in neutrophilic asthma models and contribute to neutrophilic asthma pathogenesis. NETs may serve as a promising therapeutic target for neutrophilic asthma. Supplementary Information The online version contains supplementary material available at 10.1186/s12931-022-02209-0.
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Affiliation(s)
- Mengling Xia
- Department of Respiratory Disease, Thoracic Disease Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, No. 79, Qingchun Road, 310003, Hangzhou, China
| | - Fei Xu
- Department of Respiratory Disease, Thoracic Disease Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, No. 79, Qingchun Road, 310003, Hangzhou, China
| | - Hangqi Ni
- Department of Respiratory Disease, Thoracic Disease Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, No. 79, Qingchun Road, 310003, Hangzhou, China
| | - Qing Wang
- Department of Respiratory Disease, Thoracic Disease Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, No. 79, Qingchun Road, 310003, Hangzhou, China
| | - Ruhui Zhang
- Department of Respiratory Disease, Thoracic Disease Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, No. 79, Qingchun Road, 310003, Hangzhou, China
| | - Yafang Lou
- Department of Respiratory Medicine, Hangzhou Hospital of Traditional Chinese Medicine, No. 453, Tiyuchang Road, 310013, Hangzhou, China.
| | - Jianying Zhou
- Department of Respiratory Disease, Thoracic Disease Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, No. 79, Qingchun Road, 310003, Hangzhou, China.
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Peng S, Stojkov D, Gao J, Oberson K, Latzin P, Casaulta C, Yousefi S, Simon HU. Nascent RHOH acts as a molecular brake on actomyosin-mediated effector functions of inflammatory neutrophils. PLoS Biol 2022; 20:e3001794. [PMID: 36108062 PMCID: PMC9514642 DOI: 10.1371/journal.pbio.3001794] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Revised: 09/27/2022] [Accepted: 08/11/2022] [Indexed: 12/22/2022] Open
Abstract
In contrast to molecular changes associated with increased inflammatory responses, little is known about intracellular counter-regulatory mechanisms that control signaling cascades associated with functional responses of neutrophils. Active RHO GTPases are typically considered as effector proteins that elicit cellular responses. Strikingly, we show here that RHOH, although being constitutively GTP-bound, limits neutrophil degranulation and the formation of neutrophil extracellular traps (NETs). Mechanistically, RHOH is induced under inflammatory conditions and binds to non-muscle myosin heavy chain IIA (NMHC IIA) in activated neutrophils in order to inhibit the transport of mitochondria and granules along actin filaments, which is partially reverted upon disruption of the interaction with NMHC IIA by introducing a mutation in RhoH at lysine 34 (RhoHK34A). In parallel, RHOH inhibits actin polymerization presumably by modulating RAC1 activity. In vivo studies using Rhoh-/- mice, demonstrate an increased antibacterial defense capability against Escherichia coli (E. coli). Collectively, our data reveal a previously undefined role of RHOH as a molecular brake for actomyosin-mediated neutrophil effector functions, which represents an intracellular regulatory axis involved in controlling the strength of an antibacterial inflammatory response.
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Affiliation(s)
- Shuang Peng
- Institute of Pharmacology, University of Bern, Bern, Switzerland
| | - Darko Stojkov
- Institute of Pharmacology, University of Bern, Bern, Switzerland
| | - Jian Gao
- State Key Laboratory of Pharmaceutical Biotechnology, Department of Biotechnology and Pharmaceutical Sciences, School of Life Sciences, Nanjing University, Nanjing, China
| | - Kevin Oberson
- Institute of Pharmacology, University of Bern, Bern, Switzerland
| | - Philipp Latzin
- Division of Respiratory Medicine, Department of Pediatrics, University Children’s Hospital of Bern, University of Bern, Bern, Switzerland
| | - Carmen Casaulta
- Division of Respiratory Medicine, Department of Pediatrics, University Children’s Hospital of Bern, University of Bern, Bern, Switzerland
| | - Shida Yousefi
- Institute of Pharmacology, University of Bern, Bern, Switzerland
| | - Hans-Uwe Simon
- Institute of Pharmacology, University of Bern, Bern, Switzerland
- Department of Clinical Immunology and Allergology, Sechenov University, Moscow, Russia
- Laboratory of Molecular Immunology, Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russia
- Institute of Biochemistry, Brandenburg Medical School, Neuruppin, Germany
- * E-mail:
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38
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Zhong H, Lu RY, Wang Y. Neutrophil extracellular traps in fungal infections: A seesaw battle in hosts. Front Immunol 2022; 13:977493. [PMID: 36189199 PMCID: PMC9515532 DOI: 10.3389/fimmu.2022.977493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Accepted: 08/24/2022] [Indexed: 11/13/2022] Open
Abstract
Fungal infections are a growing health care challenge. Neutrophils play a key role in defense against fungal infections. There are many effective ways for neutrophils to eliminate fungal invaders, such as phagocytosis, oxidative bursts, and the formation of extracellular traps. This process has received considerable attention and has made rapid progress since neutrophil extracellular traps (NETs) formation was described. Here, we describe the formation, induction, and function of NETs, as well as fungal strategies against NETs hunting. We highlight the effects of NETs on common fungal pathogens and how these pathogens survive.
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Segaud J, Yao W, Marschall P, Daubeuf F, Lehalle C, German B, Meyer P, Hener P, Hugel C, Flatter E, Guivarch M, Clauss L, Martin SF, Oulad-Abdelghani M, Li M. Context-dependent function of TSLP and IL-1β in skin allergic sensitization and atopic march. Nat Commun 2022; 13:4703. [PMID: 36050303 PMCID: PMC9437001 DOI: 10.1038/s41467-022-32196-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Accepted: 07/20/2022] [Indexed: 11/09/2022] Open
Abstract
Atopic diseases, including atopic dermatitis (AD) and asthma, affect a large proportion of the population, with increasing prevalence worldwide. AD often precedes the development of asthma, known as the atopic march. Allergen sensitization developed through the barrier-defective skin of AD has been recognized to be a critical step leading to asthma, in which thymic stromal lymphopoietin (TSLP) was previously shown to be critical. In this study, using a laser-assistant microporation system to disrupt targeted skin layers for generating micropores at a precise anatomic depth of mouse skin, we model allergen exposure superficially or deeply in the skin, leading to epicutaneous sensitization or dermacutaneous sensitization that is associated with a different cytokine microenvironment. Our work shows a differential requirement for TSLP in these two contexts, and identifies an important function for IL-1β, which is independent of TSLP, in promoting allergen sensitization and subsequent allergic asthma. Allergic sensitisation in the skin can lead to allergic dermatitis and further to airway asthma in a process of atopic march. Here the authors examine the difference between superficial or deep skin sensitisation, characterise the immune cells generated and show differential TSLP and IL-1β involvement.
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Affiliation(s)
- Justine Segaud
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, CNRS UMR 7104 - Inserm U 1258 - Université de Strasbourg, Illkirch, France
| | - Wenjin Yao
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, CNRS UMR 7104 - Inserm U 1258 - Université de Strasbourg, Illkirch, France
| | - Pierre Marschall
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, CNRS UMR 7104 - Inserm U 1258 - Université de Strasbourg, Illkirch, France
| | - François Daubeuf
- CNRS-Strasbourg University, UAR3286, Plate-Forme de Chimie Biologique Intégrative de Strasbourg/Strasbourg Drug Discovery and Development Institute, ESBS, Illkirch, France.,CNRS-Strasbourg University, UMR7200, Laboratoire d'Innovation Thérapeutique/ Strasbourg Drug Discovery and Development Institute, Faculté de Pharmacie, Illkirch, France
| | - Christine Lehalle
- CNRS-Strasbourg University, UAR3286, Plate-Forme de Chimie Biologique Intégrative de Strasbourg/Strasbourg Drug Discovery and Development Institute, ESBS, Illkirch, France.,CNRS-Strasbourg University, UMR7200, Laboratoire d'Innovation Thérapeutique/ Strasbourg Drug Discovery and Development Institute, Faculté de Pharmacie, Illkirch, France
| | - Beatriz German
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, CNRS UMR 7104 - Inserm U 1258 - Université de Strasbourg, Illkirch, France
| | - Pierre Meyer
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, CNRS UMR 7104 - Inserm U 1258 - Université de Strasbourg, Illkirch, France
| | - Pierre Hener
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, CNRS UMR 7104 - Inserm U 1258 - Université de Strasbourg, Illkirch, France
| | - Cécile Hugel
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, CNRS UMR 7104 - Inserm U 1258 - Université de Strasbourg, Illkirch, France
| | - Eric Flatter
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, CNRS UMR 7104 - Inserm U 1258 - Université de Strasbourg, Illkirch, France
| | - Marine Guivarch
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, CNRS UMR 7104 - Inserm U 1258 - Université de Strasbourg, Illkirch, France
| | - Laetitia Clauss
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, CNRS UMR 7104 - Inserm U 1258 - Université de Strasbourg, Illkirch, France
| | - Stefan F Martin
- Allergy Research Group, Department of Dermatology, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Mustapha Oulad-Abdelghani
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, CNRS UMR 7104 - Inserm U 1258 - Université de Strasbourg, Illkirch, France
| | - Mei Li
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, CNRS UMR 7104 - Inserm U 1258 - Université de Strasbourg, Illkirch, France.
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Li H, Zhao L, Wang Y, Zhang MC, Qiao C. Roles, detection, and visualization of neutrophil extracellular traps in acute pancreatitis. Front Immunol 2022; 13:974821. [PMID: 36032164 PMCID: PMC9414080 DOI: 10.3389/fimmu.2022.974821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Accepted: 07/18/2022] [Indexed: 11/13/2022] Open
Abstract
Neutrophil extracellular traps (NETs) are produced in large quantities at the site of inflammation, and they locally capture and eliminate various pathogens. Thus, NETs quickly control the infection of pathogens in the body and play vital roles in immunity and antibacterial effects. However, evidence is accumulating that NET formation can exacerbate pancreatic tissue damage during acute pancreatitis (AP). In this review, we describe the research progress on NETs in AP and discuss the possibility of NETs as potential therapeutic targets. In addition, since the current detection and visualization methods of NET formation are not uniform and the selection of markers is still controversial, a synopsis of these issues is provided in this review.
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Affiliation(s)
- Hongxuan Li
- Department of General Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Lingyu Zhao
- Department of Pathology, Harbin Medical University, Harbin, China
| | - Yueying Wang
- Department of Pathology, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Meng-Chun Zhang
- Department of Pharmacology, Harbin Medical University, Harbin, China
| | - Cong Qiao
- Department of Pathology, Harbin Medical University, Harbin, China
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Neutrophils and Neutrophil Extracellular Traps in Cardiovascular Disease: An Overview and Potential Therapeutic Approaches. Biomedicines 2022; 10:biomedicines10081850. [PMID: 36009397 PMCID: PMC9405087 DOI: 10.3390/biomedicines10081850] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Revised: 07/18/2022] [Accepted: 07/23/2022] [Indexed: 11/17/2022] Open
Abstract
Recent advances in pharmacotherapy have markedly improved the prognosis of cardiovascular disease (CVD) but have not completely conquered it. Therapies targeting the NOD-like receptor family pyrin domain containing 3 inflammasome and its downstream cytokines have proven effective in the secondary prevention of cardiovascular events, suggesting that inflammation is a target for treating residual risk in CVD. Neutrophil-induced inflammation has long been recognized as important in the pathogenesis of CVD. Circadian rhythm-related and disease-specific microenvironment changes give rise to neutrophil diversity. Neutrophils are primed by various stimuli, such as chemokines, cytokines, and damage-related molecular patterns, and the activated neutrophils contribute to the inflammatory response in CVD through degranulation, phagocytosis, reactive oxygen species generation, and the release of neutrophil extracellular traps (NETs). In particular, NETs promote immunothrombosis through the interaction with vascular endothelial cells and platelets and are implicated in the development of various types of CVD, such as acute coronary syndrome, deep vein thrombosis, and heart failure. NETs are promising candidates for anti-inflammatory therapy in CVD, and their efficacy has already been demonstrated in various animal models of the disease; however, they have yet to be clinically applied in humans. This narrative review discusses the diversity and complexity of neutrophils in the trajectory of CVD, the therapeutic potential of targeting NETs, and the related clinical issues.
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Sun X, Wu J, Liu L, Chen Y, Tang Y, Liu S, Chen H, Jiang Y, Liu Y, Yuan H, Lu Y, Chen Z, Cai J. Transcriptional switch of hepatocytes initiates macrophage recruitment and T-cell suppression in endotoxemia. J Hepatol 2022; 77:436-452. [PMID: 35276271 DOI: 10.1016/j.jhep.2022.02.028] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 02/06/2022] [Accepted: 02/17/2022] [Indexed: 12/15/2022]
Abstract
BACKGROUND & AIMS The liver plays crucial roles in the regulation of immune defense during acute systemic infections. However, the roles of liver cellular clusters and intercellular communication in the progression of endotoxemia have not been well-characterized. METHODS Single-cell RNA sequencing analysis was performed, and the transcriptomes of 19,795 single liver cells from healthy and endotoxic mice were profiled. The spatial and temporal changes in hepatocytes and non-parenchymal cell types were validated by multiplex immunofluorescence staining, bulk transcriptomic sequencing, or flow cytometry. Furthermore, we used an adeno-associated virus delivery system to confirm the major mechanisms mediating myeloid cell infiltration and T-cell suppression in septic murine liver. RESULTS We identified a proinflammatory hepatocyte (PIH) subpopulation that developed primarily from periportal hepatocytes and to a lesser extent from pericentral hepatocytes and played key immunoregulatory roles in endotoxemia. Multicellular cluster modeling of ligand-receptor interactions revealed that PIHs play a crucial role in the recruitment of macrophages via the CCL2-CCR2 interaction. Recruited macrophages (RMs) released cytokines (e.g., IL6, TNFα, and IL17) to induce the expression of inhibitory ligands, such as PD-L1, on hepatocytes. Subsequently, RM-stimulated hepatocytes led to the suppression of CD4+ and memory T-cell subsets partly via the PD-1/PD-L1 interaction in endotoxemia. Furthermore, sinusoidal endothelial cells expressed the highest levels of proapoptotic and inflammatory genes around the periportal zone. This pattern of gene expression facilitated increases in the number of fenestrations and infiltration of immune cells in the periportal zone. CONCLUSIONS Our study elucidates unanticipated aspects of the cellular and molecular effects of endotoxemia on liver cells at the single-cell level and provides a conceptual framework for the development of novel therapeutic approaches for acute infection. LAY SUMMARY The liver plays a crucial role in the regulation of immune defense during acute systemic infections. We identified a proinflammatory hepatocyte subpopulation and demonstrated that the interactions of this subpopulation with recruited macrophages are pivotal in the immune response during endotoxemia. These novel findings provide a conceptual framework for the discovery of rational therapeutic targets in acute infection.
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Affiliation(s)
- Xuejing Sun
- Department of Cardiology, The Third Xiangya Hospital, Central South University, Changsha 410013, China
| | - Junru Wu
- Department of Cardiology, The Third Xiangya Hospital, Central South University, Changsha 410013, China
| | - Lun Liu
- Department of Cardiology, The Third Xiangya Hospital, Central South University, Changsha 410013, China
| | - Yuanyuan Chen
- Department of Cardiology, The Third Xiangya Hospital, Central South University, Changsha 410013, China
| | - Yan Tang
- Department of Cardiology, The Third Xiangya Hospital, Central South University, Changsha 410013, China
| | - Suzhen Liu
- Department of Cardiology, The Third Xiangya Hospital, Central South University, Changsha 410013, China
| | - Hang Chen
- Department of Cardiology, Fujian Medical Center for Cardiovascular Diseases, Fujian Medical University Union Hospital, Fuzhou, Fujian, P.R. China
| | - Youxiang Jiang
- Department of Cardiology, The Third Xiangya Hospital, Central South University, Changsha 410013, China
| | - Yuanyuan Liu
- The Center of Clinical Pharmacology, The Third Xiangya Hospital, Central South University, Changsha 410013, China
| | - Hong Yuan
- Department of Cardiology, The Third Xiangya Hospital, Central South University, Changsha 410013, China; The Center of Clinical Pharmacology, The Third Xiangya Hospital, Central South University, Changsha 410013, China
| | - Yao Lu
- The Center of Clinical Pharmacology, The Third Xiangya Hospital, Central South University, Changsha 410013, China
| | - Zhaoyang Chen
- Department of Cardiology, Fujian Medical Center for Cardiovascular Diseases, Fujian Medical University Union Hospital, Fuzhou, Fujian, P.R. China.
| | - Jingjing Cai
- Department of Cardiology, The Third Xiangya Hospital, Central South University, Changsha 410013, China; The Center of Clinical Pharmacology, The Third Xiangya Hospital, Central South University, Changsha 410013, China.
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Hu X, Zhou X. Impact of single-cell RNA sequencing on understanding immune regulation. J Cell Mol Med 2022; 26:4645-4657. [PMID: 35906816 PMCID: PMC9443940 DOI: 10.1111/jcmm.17493] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Revised: 06/16/2022] [Accepted: 06/30/2022] [Indexed: 02/05/2023] Open
Abstract
Single‐cell RNA sequencing (scRNA‐seq), one of the most powerful technologies, can describe the transcriptomic heterogeneity of single cells and reveal previously unreported cell types or states in complex tissues. With the rapid development of scRNA‐seq, it has renewed our view of cellular heterogeneity and its significance for deeply understanding cell development and function. There are a large number of studies applying scRNA‐seq to investigate the heterogeneity of immune cells and disease pathogenesis, focusing on differences among every individual cell, which have provided novel inspiration for disease therapy and biological processes. In this review, we describe the development of scRNA‐seq and its application in immune‐related physiological states, regulatory mechanisms and diseases. In addition, we further discuss the opportunities and challenges of scRNA‐seq in immune regulation.
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Affiliation(s)
- Xueli Hu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Xikun Zhou
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, China.,Collaborative Innovation Center for Biotherapy, West China Hospital, Chengdu, China
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Kim JY, Stevens P, Karpurapu M, Lee H, Englert JA, Yan P, Lee TJ, Pabla N, Pietrzak M, Park GY, Christman JW, Chung S. Targeting ETosis by miR-155 inhibition mitigates mixed granulocytic asthmatic lung inflammation. Front Immunol 2022; 13:943554. [PMID: 35958610 PMCID: PMC9360579 DOI: 10.3389/fimmu.2022.943554] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Accepted: 07/01/2022] [Indexed: 11/13/2022] Open
Abstract
Asthma is phenotypically heterogeneous with several distinctive pathological mechanistic pathways. Previous studies indicate that neutrophilic asthma has a poor response to standard asthma treatments comprising inhaled corticosteroids. Therefore, it is important to identify critical factors that contribute to increased numbers of neutrophils in asthma patients whose symptoms are poorly controlled by conventional therapy. Leukocytes release chromatin fibers, referred to as extracellular traps (ETs) consisting of double-stranded (ds) DNA, histones, and granule contents. Excessive components of ETs contribute to the pathophysiology of asthma; however, it is unclear how ETs drive asthma phenotypes and whether they could be a potential therapeutic target. We employed a mouse model of severe asthma that recapitulates the intricate immune responses of neutrophilic and eosinophilic airway inflammation identified in patients with severe asthma. We used both a pharmacologic approach using miR-155 inhibitor-laden exosomes and genetic approaches using miR-155 knockout mice. Our data show that ETs are present in the bronchoalveolar lavage fluid of patients with mild asthma subjected to experimental subsegmental bronchoprovocation to an allergen and a severe asthma mouse model, which resembles the complex immune responses identified in severe human asthma. Furthermore, we show that miR-155 contributes to the extracellular release of dsDNA, which exacerbates allergic lung inflammation, and the inhibition of miR-155 results in therapeutic benefit in severe asthma mice. Our findings show that targeting dsDNA release represents an attractive therapeutic target for mitigating neutrophilic asthma phenotype, which is clinically refractory to standard care.
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Affiliation(s)
- Ji Young Kim
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Internal Medicine, Ohio State University Wexner Medical Center, Davis Heart and Lung Research Institute, Columbus, OH, United States
- Division of Pharmaceutics and Pharmacology, College of Pharmacy and Comprehensive Cancer Center, The Ohio State University, Columbus, OH, United States
| | - Patrick Stevens
- Comprehensive Cancer Center, Biomedical Informatics Shared Resources, The Ohio State University College of Medicine, Columbus, OH, United States
| | - Manjula Karpurapu
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Internal Medicine, Ohio State University Wexner Medical Center, Davis Heart and Lung Research Institute, Columbus, OH, United States
| | - Hyunwook Lee
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Internal Medicine, Ohio State University Wexner Medical Center, Davis Heart and Lung Research Institute, Columbus, OH, United States
| | - Joshua A. Englert
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Internal Medicine, Ohio State University Wexner Medical Center, Davis Heart and Lung Research Institute, Columbus, OH, United States
| | - Pearlly Yan
- Comprehensive Cancer Center, Division of Hematology, Department of Internal Medicine, The Ohio State University College of Medicine, Columbus, OH, United States
| | - Tae Jin Lee
- Department of Neurosurgery, McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX, United States
| | - Navjot Pabla
- Division of Pharmaceutics and Pharmacology, College of Pharmacy and Comprehensive Cancer Center, The Ohio State University, Columbus, OH, United States
| | - Maciej Pietrzak
- Comprehensive Cancer Center, Biomedical Informatics Shared Resources, The Ohio State University College of Medicine, Columbus, OH, United States
| | - Gye Young Park
- Section of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, University of Illinois at Chicago, Chicago, IL, United States
| | - John W. Christman
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Internal Medicine, Ohio State University Wexner Medical Center, Davis Heart and Lung Research Institute, Columbus, OH, United States
| | - Sangwoon Chung
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Internal Medicine, Ohio State University Wexner Medical Center, Davis Heart and Lung Research Institute, Columbus, OH, United States
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Janssen P, Tosi I, Hego A, Maréchal P, Marichal T, Radermecker C. Neutrophil Extracellular Traps Are Found in Bronchoalveolar Lavage Fluids of Horses With Severe Asthma and Correlate With Asthma Severity. Front Immunol 2022; 13:921077. [PMID: 35911691 PMCID: PMC9326094 DOI: 10.3389/fimmu.2022.921077] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Accepted: 06/16/2022] [Indexed: 12/02/2022] Open
Abstract
Asthma encompasses a spectrum of heterogenous immune-mediated respiratory disorders sharing a similar clinical pattern characterized by cough, wheeze and exercise intolerance. In horses, equine asthma can be subdivided into severe or moderate asthma according to clinical symptoms and the extent of airway neutrophilic inflammation. While severe asthmatic horses are characterized by an elevated neutrophilic inflammation of the lower airways, cough, dyspnea at rest and high mucus secretion, horses with moderate asthma show a milder neutrophilic inflammation, exhibit intolerance to exercise but no labored breathing at rest. Yet, the physiopathology of different phenotypes of equine asthma remains poorly understood and there is a need to elucidate the underlying mechanisms tailoring those phenotypes in order to improve clinical management and elaborate novel therapeutic strategies. In this study, we sought to quantify the presence of neutrophil extracellular traps (NETs) in bronchoalveolar lavage fluids (BALF) of moderate or severe asthmatic horses and healthy controls, and assessed whether NETs correlated with disease severity. To this end, we evaluated the amounts of NETs by measuring cell-free DNA and MPO-DNA complexes in BALF supernatants or by quantifying NETs release by BALF cells by confocal microscopy. We were able to unequivocally identify elevated NETs levels in BALF of severe asthmatic horses as compared to healthy controls or moderate asthmatic horses. Moreover, we provided evidence that BALF NETs release was a specific feature seen in severe equine asthma, as opposed to moderate asthma, and correlated with disease severity. Finally, we showed that NETs could act as a predictive factor for severe equine asthma. Our study thus uniquely identifies NETs in BALF of severe asthmatic horses using three distinct methods and supports the idea that moderate and severe equine asthma do not rely on strictly similar pathophysiological mechanisms. Our data also suggest that NETs represent a relevant biomarker, a putative driver and a potential therapeutic target in severe asthma disease.
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Affiliation(s)
- Pierre Janssen
- Laboratory of Immunophysiology, GIGA Institute, Liège University, Liège, Belgium
- Faculty of Veterinary Medicine, Liège University, Liège, Belgium
| | - Irene Tosi
- Faculty of Veterinary Medicine, Liège University, Liège, Belgium
| | - Alexandre Hego
- In Vitro Imaging Platform, GIGA Institute, Liège University, Liège, Belgium
| | - Pauline Maréchal
- Laboratory of Immunophysiology, GIGA Institute, Liège University, Liège, Belgium
| | - Thomas Marichal
- Laboratory of Immunophysiology, GIGA Institute, Liège University, Liège, Belgium
- Faculty of Veterinary Medicine, Liège University, Liège, Belgium
| | - Coraline Radermecker
- Laboratory of Immunophysiology, GIGA Institute, Liège University, Liège, Belgium
- Faculty of Veterinary Medicine, Liège University, Liège, Belgium
- *Correspondence: Coraline Radermecker,
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46
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Sebina I, Rashid RB, Sikder MAA, Rahman MM, Ahmed T, Radford-Smith DE, Kotenko SV, Hill GR, Bald T, Phipps S. IFN-λ Diminishes the Severity of Viral Bronchiolitis in Neonatal Mice by Limiting NADPH Oxidase-Induced PAD4-Independent NETosis. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2022; 208:2806-2816. [PMID: 35675958 DOI: 10.4049/jimmunol.2100876] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Accepted: 04/11/2022] [Indexed: 06/15/2023]
Abstract
Infants with attenuated type III IFN (IFN-λ) responses are at increased risk of severe lower respiratory tract infection (sLRI). The IL-28Rα-chain and IL-10Rβ-chain form a heterodimeric receptor complex, necessary for IFN-λ signaling. Therefore, to better understand the immunopathogenic mechanisms through which an IFN-λlo microenvironment predisposes to a sLRI, we inoculated neonatal wild-type and IL-28R-deficient (IL-28R -/-) mice with pneumonia virus of mice, a rodent-specific pneumovirus. Infected IL-28R -/- neonates displayed an early, pronounced, and persistent neutrophilia that was associated with enhanced reactive oxygen species (ROS) production, NETosis, and mucus hypersecretion. Targeted deletion of the IL-28R in neutrophils was sufficient to increase neutrophil activation, ROS production, NET formation, and mucus production in the airways. Inhibition of protein-arginine deiminase type 4 (PAD4), a regulator of NETosis, had no effect on myeloperoxidase expression, citrullinated histones, and the magnitude of the inflammatory response in the lungs of infected IL-28R -/- mice. In contrast, inhibition of ROS production decreased NET formation, cellular inflammation, and mucus hypersecretion. These data suggest that IFN-λ signaling in neutrophils dampens ROS-induced NETosis, limiting the magnitude of the inflammatory response and mucus production. Therapeutics that promote IFN-λ signaling may confer protection against sLRI.
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Affiliation(s)
- Ismail Sebina
- Respiratory Immunology Laboratory, QIMR Berghofer Medical Research Institute, Herston, Queensland, Australia
| | - Ridwan B Rashid
- Respiratory Immunology Laboratory, QIMR Berghofer Medical Research Institute, Herston, Queensland, Australia
- Faculty of Medicine, The University of Queensland, Herston, Queensland, Australia
| | - Md Al Amin Sikder
- Respiratory Immunology Laboratory, QIMR Berghofer Medical Research Institute, Herston, Queensland, Australia
- Faculty of Medicine, The University of Queensland, Herston, Queensland, Australia
| | - Muhammed Mahfuzur Rahman
- Respiratory Immunology Laboratory, QIMR Berghofer Medical Research Institute, Herston, Queensland, Australia
- Faculty of Medicine, The University of Queensland, Herston, Queensland, Australia
| | - Tufael Ahmed
- Respiratory Immunology Laboratory, QIMR Berghofer Medical Research Institute, Herston, Queensland, Australia
- Faculty of Health, Queensland University of Technology, Brisbane, Queensland, Australia
| | - Daniel E Radford-Smith
- Respiratory Immunology Laboratory, QIMR Berghofer Medical Research Institute, Herston, Queensland, Australia
- Department of Pharmacology, University of Oxford, Oxford, United Kingdom
| | - Sergei V Kotenko
- Department of Microbiology, Biochemistry, and Molecular Genetics, New Jersey Medical School, Rutgers-The State University of New Jersey, Newark, NJ
| | - Geoffrey R Hill
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA
- Division of Medical Oncology, University of Washington, Seattle, WA
| | - Tobias Bald
- Oncology and Cellular Immunology Laboratory, QIMR Berghofer Medical Research Institute, Herston, Queensland, Australia; and
- Institute for Experimental Oncology, University Hospital Bonn, Bonn, Germany
| | - Simon Phipps
- Respiratory Immunology Laboratory, QIMR Berghofer Medical Research Institute, Herston, Queensland, Australia;
- Faculty of Medicine, The University of Queensland, Herston, Queensland, Australia
- Faculty of Health, Queensland University of Technology, Brisbane, Queensland, Australia
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47
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Bacterial Species Associated with Highly Allergenic Plant Pollen Yield a High Level of Endotoxins and Induce Chemokine and Cytokine Release from Human A549 Cells. Inflammation 2022; 45:2186-2201. [PMID: 35668156 DOI: 10.1007/s10753-022-01684-3] [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: 02/17/2022] [Revised: 04/28/2022] [Accepted: 05/16/2022] [Indexed: 11/05/2022]
Abstract
Sensitization to pollen allergens has been increasing in Europe every year. Most studies in this field are related to climate change, phenology, allergens associated with different pollens, and allergic disorders. As a plant microhabitat, pollen is colonized by diverse microorganisms, including endotoxin-producing bacteria which may contribute to pollen allergy (pollinosis). Therefore, bacteria isolated from high allergenic and low allergenic plant pollen, as well as the pollen itself with all microbial inhabitants, were used to assess the effect of the pollen by measuring the endotoxins lipopolysaccharides (LPS) and lipoteichoic acid (LTA) concentrations and their effect on chemokine and cytokine release from transwell cultured epithelial A549 cells as a model of epithelial lung barrier. High allergenic pollen showed a significantly higher level of bacterial endotoxins; interestingly, the endotoxin level found in the bacterial isolates from high allergenic pollen was significantly higher compared to that of bacteria from low allergenic pollen. Moreover, bacterial LPS concentrations across different pollen species positively correlated with the LPS concentration across their corresponding bacterial isolates. Selected bacterial isolates from hazel pollen (HA5, HA13, and HA7) co-cultured with A549 cells induced a potent concentration-dependent release of the chemokine interleukin-8 and monocyte chemotactic protein-1 as well as the cytokine TNF-alpha and interleukin-2 to both apical and basal compartments of the transwell model. This study clearly shows the role of bacteria and bacterial endotoxins in the pollen allergy as well as seasonal allergic rhinitis.
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48
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Calvert BA, Quiroz EJ, Lorenzana Z, Doan N, Kim S, Senger CN, Wallace WD, Salomon MP, Henley J, Ryan AL. Neutrophilic inflammation promotes SARS-CoV-2 infectivity and augments the inflammatory responses in airway epithelial cells. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2022:2021.08.09.455472. [PMID: 34401877 PMCID: PMC8366793 DOI: 10.1101/2021.08.09.455472] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
In response to viral infection, neutrophils release inflammatory mediators as part of the innate immune response, contributing to pathogen clearance through virus internalization and killing. Pre-existing co- morbidities correlating to incidence of severe COVID-19 are associated with chronic airway neutrophilia. Furthermore, examination of COVID-19 explanted lung tissue revealed a series of epithelial pathologies associated with the infiltration and activation of neutrophils, indicating neutrophil activity in response to SARS- CoV-2 infection. To determine the impact of neutrophil-epithelial interactions on the infectivity and inflammatory responses to SARS-CoV-2 infection, we developed a co-culture model of airway neutrophilia. SARS-CoV-2 infection of the airway epithelium alone does not result in a notable pro-inflammatory response from the epithelium. The addition of neutrophils induces the release of proinflammatory cytokines and stimulates a significantly augmented pro-inflammatory response subsequent SARS-CoV-2 infection. The resulting inflammatory response is polarized with differential release from the apical and basolateral side of the epithelium. Additionally, the integrity of the epithelial barrier is impaired with notable epithelial damage and infection of basal stem cells. This study reveals a key role for neutrophil-epithelial interactions in determining inflammation and infectivity in response to SARS-CoV-2 infection.
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Affiliation(s)
- BA Calvert
- Hastings Center for Pulmonary Research, Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of Southern California, Los Angeles, CA, USA
- Department of Anatomy and Cell Biology, Carver College of Medicine, University of Iowa, Iowa City, IA, USA
| | - EJ Quiroz
- Hastings Center for Pulmonary Research, Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of Southern California, Los Angeles, CA, USA
- Department of Stem Cell Biology and Regenerative Medicine, University of Southern California, Los Angeles, CA, USA
- Department of Anatomy and Cell Biology, Carver College of Medicine, University of Iowa, Iowa City, IA, USA
| | - Z Lorenzana
- Hastings Center for Pulmonary Research, Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of Southern California, Los Angeles, CA, USA
| | - N Doan
- Hastings Center for Pulmonary Research, Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of Southern California, Los Angeles, CA, USA
| | - S Kim
- The Salk Institute of Biological Studies, 10010 North Torey Pines Road, La Jolla, Ca, USA
| | - CN Senger
- Hastings Center for Pulmonary Research, Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of Southern California, Los Angeles, CA, USA
- Department of Stem Cell Biology and Regenerative Medicine, University of Southern California, Los Angeles, CA, USA
| | - WD Wallace
- Department of Pathology, University of Southern California, Los Angeles, CA, USA
| | - MP Salomon
- Department of Medicine, University of Southern California, Los Angeles, CA, USA
| | - J Henley
- Department of Medicine, University of Southern California, Los Angeles, CA, USA
| | - AL Ryan
- Hastings Center for Pulmonary Research, Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of Southern California, Los Angeles, CA, USA
- Department of Stem Cell Biology and Regenerative Medicine, University of Southern California, Los Angeles, CA, USA
- Department of Anatomy and Cell Biology, Carver College of Medicine, University of Iowa, Iowa City, IA, USA
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49
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Zhu XX, Zhang WW, Wu CH, Wang SS, Smith FG, Jin SW, Zhang PH. The Novel Role of Metabolism-Associated Molecular Patterns in Sepsis. Front Cell Infect Microbiol 2022; 12:915099. [PMID: 35719361 PMCID: PMC9202891 DOI: 10.3389/fcimb.2022.915099] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Accepted: 05/09/2022] [Indexed: 11/18/2022] Open
Abstract
Sepsis, a life-threatening organ dysfunction, is not caused by direct damage of pathogens and their toxins but by the host’s severe immune and metabolic dysfunction caused by the damage when the host confronts infection. Previous views focused on the damage-associated molecular patterns (DAMPs) and pathogen-associated molecular patterns (PAMPs), including metabolic proinflammatory factors in sepsis. Recently, new concepts have been proposed to group free fatty acids (FFAs), glucose, advanced glycation end products (AGEs), cholesterol, mitochondrial DNA (mtDNA), oxidized phospholipids (OxPLs), ceramides, and uric acid into metabolism-associated molecular patterns (MAMPs). The concept of MAMPs will bring new guidance to the research and potential treatments of sepsis. Nowadays, sepsis is regarded as closely related to metabolic disorders, and MAMPs play an important role in the pathogenesis and development of sepsis. According to this view, we have explained MAMPs and their possible roles in the pathogenesis of sepsis. Next, we have further explained the specific functions of different types of MAMPs in the metabolic process and their interactional relationship with sepsis. Finally, the therapeutic prospects of MAMPs in sepsis have been summarized.
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Affiliation(s)
- Xin-xu Zhu
- Department of Anaesthesia and Critical Care, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Zhejiang, China
| | - Wen-wu Zhang
- Department of Anaesthesia and Critical Care, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Zhejiang, China
| | - Cheng-hua Wu
- Department of Anaesthesia and Critical Care, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Zhejiang, China
| | - Shun-shun Wang
- Department of Anaesthesia and Critical Care, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Zhejiang, China
| | - Fang Gao Smith
- Department of Anaesthesia and Critical Care, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Zhejiang, China
- Academic Department of Anesthesia, Critical Care, Resuscitation and Pain, Heart of England NHS Foundation Trust, Birmingham, United Kingdom
| | - Sheng-wei Jin
- Department of Anaesthesia and Critical Care, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Zhejiang, China
- *Correspondence: Sheng-wei Jin, ; Pu-hong Zhang,
| | - Pu-hong Zhang
- Department of Anaesthesia and Critical Care, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Zhejiang, China
- *Correspondence: Sheng-wei Jin, ; Pu-hong Zhang,
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Egholm C, Özcan A, Breu D, Boyman O. Type 2 immune predisposition results in accelerated neutrophil aging causing susceptibility to bacterial infection. Sci Immunol 2022; 7:eabi9733. [PMID: 35594340 DOI: 10.1126/sciimmunol.abi9733] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Atopic individuals show enhanced type 2 immune cell responses and a susceptibility to infections with certain bacteria and viruses. Although patients with allergic diseases harbor normal counts of circulating neutrophils, these cells exert deficient effector functions. However, the underlying mechanism of this dysregulation of neutrophils remains ill defined. Here, we find that development, aging, and elimination of neutrophils are accelerated in mice with a predisposition to type 2 immunity, which, in turn, causes susceptibility to infection with several bacteria. Neutrophil-mediated immunity to bacterial infection was greatly decreased in mice with a genetic or induced bias to type 2 immunity. Abrogation of interleukin-4 (IL-4) receptor signaling in these animals fully restored their antibacterial defense, which largely depended on Ly6G+ neutrophils. IL-4 signals accelerated the maturation of neutrophils in the bone marrow and caused their rapid release to the circulation and periphery. IL-4-stimulated neutrophils aged more rapidly in the periphery, as evidenced by their phenotypic and functional changes, including their decreased phagocytosis of bacterial particles. Moreover, neutrophils from type 2 immune predisposed mice were eliminated at a higher rate by apoptosis and phagocytosis by macrophages and dendritic cells. Collectively, IL-4 signaling-mediated neutrophil aging constitutes an important adaptive deficiency in type 2 inflammation, contributing to recurrent bacterial infections.
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Affiliation(s)
- Cecilie Egholm
- Department of Immunology, University Hospital Zurich, Zurich, Switzerland
| | - Alaz Özcan
- Department of Immunology, University Hospital Zurich, Zurich, Switzerland
| | - Daniel Breu
- Department of Immunology, University Hospital Zurich, Zurich, Switzerland
| | - Onur Boyman
- Department of Immunology, University Hospital Zurich, Zurich, Switzerland.,Faculty of Medicine, University of Zurich, Zurich, Switzerland
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