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Gao F, Peng H, Gou R, Zhou Y, Ren S, Li F. Exploring neutrophil extracellular traps: mechanisms of immune regulation and future therapeutic potential. Exp Hematol Oncol 2025; 14:80. [PMID: 40442839 PMCID: PMC12123823 DOI: 10.1186/s40164-025-00670-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2025] [Accepted: 05/13/2025] [Indexed: 06/02/2025] Open
Abstract
Neutrophil extracellular traps (NETs) are complex, web-like structures consisting of DNA intertwined with antimicrobial proteins, which neutrophils release upon immune activation. These structures play a crucial role in pathogen elimination, particularly in infectious diseases. However, their involvement in various pathological conditions is multifaceted and context-dependent, while NETs contribute to host defense against infections, they can also exacerbate sterile inflammation, autoimmune disorders, and tumor progression. This review provides a comprehensive analysis of the molecular mechanisms governing NET formation and examines their interactions with immune cells, emphasizing how these interactions shape immune responses and drive disease dynamics. Furthermore, it explores ongoing clinical trials and emerging therapeutic strategies targeting NETs, offering critical insights into their potential translational applications in clinical practice.
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Affiliation(s)
- Fan Gao
- Jiangxi Provincial Key Laboratory of Hematological Diseases, Department of Hematology, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, China
| | - Hongwei Peng
- Department of Pharmacy, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Ruixue Gou
- Jiangxi Provincial Key Laboratory of Hematological Diseases, Department of Hematology, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, China
| | - Yulan Zhou
- Jiangxi Provincial Key Laboratory of Hematological Diseases, Department of Hematology, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, China
- Jiangxi Clinical Research Center for Hematologic Disease, Nanchang, China
- Institute of Lymphoma and Myeloma, Nanchang University, Nanchang, China
| | - Simei Ren
- National Center for Clinical Laboratories, Beijing Engineering Research Center of Laboratory Medicine, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China.
| | - Fei Li
- Jiangxi Provincial Key Laboratory of Hematological Diseases, Department of Hematology, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, China.
- Jiangxi Clinical Research Center for Hematologic Disease, Nanchang, China.
- Institute of Lymphoma and Myeloma, Nanchang University, Nanchang, China.
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Wang J, Liang Y, Meng Y, Chen J, Fang L, Yang H, Li P. Assessment of lncRNA biomarkers based on NETs for prognosis and therapeutic response in ovarian cancer. Sci Rep 2025; 15:13042. [PMID: 40234525 PMCID: PMC12000398 DOI: 10.1038/s41598-025-97548-5] [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: 11/09/2024] [Accepted: 04/04/2025] [Indexed: 04/17/2025] Open
Abstract
Ovarian cancer (OC) usually progresses rapidly and is associated with high mortality, while a reliable clinical factor for OC patients to predict prognosis is currently lacking. Recently, the pathogenic role of neutrophils releasing neutrophil extracellular traps (NETs) in various cancers including OC has gradually been recognized. The study objective was to determine whether NETs-related biomarkers can be used to accurately predict the prognosis and guide clinical decision-making in OC. In this study, we utilized univariate and multivariate Cox regression to identify key prognostic features and developed a model with six NETs-related lncRNAs, selected via LASSO regression. The model's predictive capability was assessed through Kaplan-Meier, ROC, and Cox analyses. To understand the model's mechanisms, we conducted GO term analysis, KEGG pathway enrichment, and GSEA. We also analyzed gene mutation status, tumor mutation load, survival rates, and model correlation. Additionally, we compared immune functions, immune checkpoint expression, and chemotherapy sensitivity between risk groups. Besides, we validated the model's predictive value using test data and tissues acquired from our institution. Finally, we performed in vitro and in vivo experiments to confirm the expression of model lncRNAs and the cellular level function of GAS5. We developed a model using six NETs-associated lncRNAs: GAS5, GBP1P1, LINC00702, LINC01933, LINC02362, and ZNF687-AS1. The model's predictive performance, evaluated via ROC curve, was compared with traditional clinicopathological features. GO process analysis highlighted molecular functions related to antigen binding and immune system biological processes. Variations were observed in transcription regulators affecting immune response, inflammation, cytotoxicity, and regulation. We also predicted IC50 values for chemotherapeutic drugs (bexarotene, bicalutamide, embelin, GDC0941, and thapsigargin) in high- and low-risk groups, finding higher IC50 values in low-risk patients. The risk model's robustness was validated using OC cells, tissues, and clinical datas.
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Affiliation(s)
- Jingmeng Wang
- Department of Gynecology and Obstetrics, the Second Affiliated Hospital of Harbin Medical University, Harbin, China
- Laboratory of Department of Anatomy, Harbin Medical University, Harbin, China
| | - Yusen Liang
- Department of Gynecology and Obstetrics, the Second Affiliated Hospital of Harbin Medical University, Harbin, China
- Laboratory of Department of Anatomy, Harbin Medical University, Harbin, China
| | - Yimei Meng
- Department of Gynecology and Obstetrics, the Second Affiliated Hospital of Harbin Medical University, Harbin, China
- Laboratory of Department of Anatomy, Harbin Medical University, Harbin, China
| | - Jialin Chen
- Department of Gynecology and Obstetrics, the Second Affiliated Hospital of Harbin Medical University, Harbin, China
- Laboratory of Department of Anatomy, Harbin Medical University, Harbin, China
| | - Lei Fang
- Department of Gynecology and Obstetrics, the Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Huike Yang
- Laboratory of Department of Anatomy, Harbin Medical University, Harbin, China.
- Key Laboratory of Preservation of Human Genetic Resources and Disease Control in China, Harbin Medical University, Ministry of Education, Harbin, China.
| | - Peiling Li
- Department of Gynecology and Obstetrics, the Second Affiliated Hospital of Harbin Medical University, Harbin, China.
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Fang J, Ding H, Huang J, Liu W, Hong T, Yang J, Wu Z, Li Z, Zhang S, Liu P, Fang Y, Wu J, Li X, Lin J. Mac-1 blockade impedes adhesion-dependent neutrophil extracellular trap formation and ameliorates lung injury in LPS-induced sepsis. Front Immunol 2025; 16:1548913. [PMID: 40226627 PMCID: PMC11985419 DOI: 10.3389/fimmu.2025.1548913] [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: 12/20/2024] [Accepted: 03/07/2025] [Indexed: 04/15/2025] Open
Abstract
Background Sepsis is a common critical condition that can lead to multiple organ injury. Sepsis-induced acute respiratory distress syndrome (ARDS) is frequently an important cause of poor prognosis and is associated with high mortality rates, despite existing therapeutic interventions. Neutrophil infiltration and extracellular traps (NET) are implicated in acute lung injury (ALI) and ARDS following sepsis. As circulating neutrophils infiltrate infected tissues, they come into direct contact with vascular endothelial cells (ECs). Although the ability of NETs to induce endothelial damage is well established, the specific role of direct EC-neutrophil interactions in NET formation and lung injury during sepsis is not fully understood. Methods In this study, NET formation was assessed when neutrophils were co-culture with ECs or separated from them and stimulated with phorbol 12-myristate 13-acetate (PMA), lipopolysaccharide (LPS), lipoteichoic acid (LTA), or septic plasma. Results We found that adhesion of neutrophils on ECs is critical in NET formation in response to LPS, LTA, or septic plasma in vitro. Blocking the macrophage-1 antigen (Mac-1) impeded NET formation, while inhibiting P-selectin glycoprotein ligand-1 (PSGL-1) or leukocyte function-associated antigen-1 (LFA-1) did not. This adhesion-dependent NET formation was reliant on the influx of extracellular calcium and peptidylarginine deiminase 4 (PAD4)-mediated citrullination of histone H3. However, Mac-1 blockade did not alter calcium influx. In a murine model of LPS-induced sepsis, Mac-1 blockade reduced NET release, lowered inflammatory cytokine levels, mitigated endothelial damage, and attenuated lung injury. Conclusion Our findings offer insights into the critical role of EC-neutrophil direct contact in NET formation during sepsis and propose Mac-1 as a potential therapeutic target.
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Affiliation(s)
- Jinhua Fang
- Medical Research Institute, Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
| | - Hongguang Ding
- Department of Emergency Medicine, Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
| | - Jiaqi Huang
- Institute of Biomechanics/School of Bioscience and Bioengineering, South China University of Technology, Guangzhou, China
| | - Wang Liu
- Institute of Biomechanics/School of Bioscience and Bioengineering, South China University of Technology, Guangzhou, China
| | - Tiantian Hong
- Institute of Biomechanics/School of Bioscience and Bioengineering, South China University of Technology, Guangzhou, China
| | - Junxian Yang
- Medical Research Institute, Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
| | - Zhiwei Wu
- Medical Research Institute, Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
| | - Zhuo Li
- Department of Critical Care Medicine, Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
| | - Shiying Zhang
- Department of Critical Care Medicine, Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
| | - Peimin Liu
- Department of Nephrology, Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
| | - Ying Fang
- Institute of Biomechanics/School of Bioscience and Bioengineering, South China University of Technology, Guangzhou, China
| | - Jianhua Wu
- Institute of Biomechanics/School of Bioscience and Bioengineering, South China University of Technology, Guangzhou, China
| | - Xin Li
- Department of Emergency Medicine, Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
- School of Medicine, South China University of Technology, Guangzhou, China
| | - Jiangguo Lin
- Medical Research Institute, Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
- Institute of Biomechanics/School of Bioscience and Bioengineering, South China University of Technology, Guangzhou, China
- School of Medicine, South China University of Technology, Guangzhou, China
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Lian Y, Lai X, Wu C, Wang L, Shang J, Zhang H, Jia S, Xing W, Liu H. The roles of neutrophils in cardiovascular diseases. Front Cardiovasc Med 2025; 12:1526170. [PMID: 40176832 PMCID: PMC11961988 DOI: 10.3389/fcvm.2025.1526170] [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: 11/11/2024] [Accepted: 03/04/2025] [Indexed: 04/05/2025] Open
Abstract
The immune response plays a vital role in the development of cardiovascular diseases (CVDs). As a crucial component of the innate immune system, neutrophils are involved in the initial inflammatory response following cardiovascular injury, thereby inducing subsequent damage and promoting recovery. Neutrophils exert their functional effects in tissues through various mechanisms, including activation and the formation of neutrophil extracellular traps (NETs). Once activated, neutrophils are recruited to the site of injury, where they release inflammatory mediators and cytokines. This study discusses the main mechanisms associated with neutrophil activity and proposes potential new therapeutic targets. In this review, we systematically summarize the diverse phenotypes of neutrophils in disease regulatory mechanisms, different modes of cell death, and focus on the relevance of neutrophils to various CVDs, including atherosclerosis, acute coronary syndrome, myocardial ischemia/reperfusion injury, hypertension, atrial fibrillation, heart failure, and viral myocarditis. Finally, we also emphasize the preclinical/clinical translational significance of neutrophil-targeted strategies.
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Affiliation(s)
- Yanjie Lian
- Department of Cardiovascular Medicine, Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Xiaolei Lai
- Department of Cardiovascular Medicine, Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Cong Wu
- Beijing Hospital of Traditional Chinese Medicine, Huairou Hospital, Beijing, China
| | - Li Wang
- Guang’anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - JuJu Shang
- Department of Cardiovascular Medicine, Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Heyi Zhang
- Department of Cardiovascular Medicine, Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Sihan Jia
- Department of Cardiovascular Medicine, Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Wenlong Xing
- Department of Cardiovascular Medicine, Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Hongxu Liu
- Department of Cardiovascular Medicine, Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing, China
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5
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He W, Yan L, Hu D, Hao J, Liou Y, Luo G. Neutrophil heterogeneity and plasticity: unveiling the multifaceted roles in health and disease. MedComm (Beijing) 2025; 6:e70063. [PMID: 39845896 PMCID: PMC11751288 DOI: 10.1002/mco2.70063] [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: 09/02/2024] [Revised: 11/04/2024] [Accepted: 12/11/2024] [Indexed: 01/24/2025] Open
Abstract
Neutrophils, the most abundant circulating leukocytes, have long been recognized as key players in innate immunity and inflammation. However, recent discoveries unveil their remarkable heterogeneity and plasticity, challenging the traditional view of neutrophils as a homogeneous population with a limited functional repertoire. Advances in single-cell technologies and functional assays have revealed distinct neutrophil subsets with diverse phenotypes and functions and their ability to adapt to microenvironmental cues. This review provides a comprehensive overview of the multidimensional landscape of neutrophil heterogeneity, discussing the various axes along which diversity manifests, including maturation state, density, surface marker expression, and functional polarization. We highlight the molecular mechanisms underpinning neutrophil plasticity, focusing on the complex interplay of signaling pathways, transcriptional regulators, and epigenetic modifications that shape neutrophil responses. Furthermore, we explore the implications of neutrophil heterogeneity and plasticity in physiological processes and pathological conditions, including host defense, inflammation, tissue repair, and cancer. By integrating insights from cutting-edge research, this review aims to provide a framework for understanding the multifaceted roles of neutrophils and their potential as therapeutic targets in a wide range of diseases.
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Affiliation(s)
- Weifeng He
- Institute of Burn ResearchState Key Laboratory of Trauma and Chemical Poisoningthe First Affiliated Hospital of Army Medical University (the Third Military Medical University)ChongqingChina
- Chongqing Key Laboratory for Wound Repair and Tissue RegenerationChongqingChina
| | - Lingfeng Yan
- Institute of Burn ResearchState Key Laboratory of Trauma and Chemical Poisoningthe First Affiliated Hospital of Army Medical University (the Third Military Medical University)ChongqingChina
- Chongqing Key Laboratory for Wound Repair and Tissue RegenerationChongqingChina
| | - Dongxue Hu
- Department of Biological SciencesFaculty of ScienceNational University of SingaporeSingaporeSingapore
| | - Jianlei Hao
- Guangdong Provincial Key Laboratory of Tumor Interventional Diagnosis and TreatmentZhuhai Institute of Translational MedicineZhuhai People's Hospital (Zhuhai Clinical Medical College of Jinan University)Jinan UniversityZhuhaiGuangdongChina
- The Biomedical Translational Research InstituteFaculty of Medical ScienceJinan UniversityGuangzhouGuangdongChina
| | - Yih‐Cherng Liou
- Department of Biological SciencesFaculty of ScienceNational University of SingaporeSingaporeSingapore
- National University of Singapore (NUS) Graduate School for Integrative Sciences and EngineeringNational University of SingaporeSingaporeSingapore
| | - Gaoxing Luo
- Institute of Burn ResearchState Key Laboratory of Trauma and Chemical Poisoningthe First Affiliated Hospital of Army Medical University (the Third Military Medical University)ChongqingChina
- Chongqing Key Laboratory for Wound Repair and Tissue RegenerationChongqingChina
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6
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Kurts C, von Vietinghoff S, Krebs CF, Panzer U. Kidney immunology from pathophysiology to clinical translation. Nat Rev Immunol 2025:10.1038/s41577-025-01131-y. [PMID: 39885266 DOI: 10.1038/s41577-025-01131-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/02/2025] [Indexed: 02/01/2025]
Abstract
Kidney diseases are widespread and represent a considerable medical, social and economic burden. However, there has been marked progress in understanding the immunological aspects of kidney disease. This includes the identification of distinct intrarenal immunological niches and characterization of kidney disease endotypes according to the underlying molecular immunopathology, as well as a better understanding of the pathological roles for T cells, mononuclear phagocytes and B cells and the renal elements they target. These insights have improved the diagnosis of kidney disease. Here, we discuss new developments in our understanding of kidney immunology, focusing on immune mechanisms of disease and their translational implications for the diagnosis and treatment of kidney disease. We also describe the immune-mediated crosstalk between the kidney and other organs that influences kidney disease and extrarenal inflammation.
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Affiliation(s)
- Christian Kurts
- Institute of Molecular Medicine and Experimental Immunology, University Hospital, Bonn, Germany.
- Department of Microbiology and Immunology, Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, Victoria, Australia.
| | - Sibylle von Vietinghoff
- Nephrology Section, University Hospital Bonn, Medical Clinic and Polyclinic I, Bonn, Germany
| | - Christian F Krebs
- III. Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- Hamburg Center for Translational Immunology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- Hamburg Center for Kidney Health, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Ulf Panzer
- III. Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- Hamburg Center for Translational Immunology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- Hamburg Center for Kidney Health, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
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Hsu T, Talley MJ, Yang P, Geiselhoeringer A, Yang C, Gorla A, Rahman MJ, Silva L, Chen D, Yang B. Identification of infectious viruses for risk-based virus testing of CHO unprocessed bulk using next-generation sequencing. Biotechnol Prog 2024; 40:e3485. [PMID: 39051853 DOI: 10.1002/btpr.3485] [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: 02/27/2024] [Revised: 04/30/2024] [Accepted: 05/24/2024] [Indexed: 07/27/2024]
Abstract
It is important to increase manufacturing speed to make medicines more widely available. One bottleneck for CHO-based drug substance release is the in vitro viral (IVV) cell-based assay on unprocessed bulk. To increase process speed, we evaluate the suitability of replacing the IVV cell-based assay with next-generation sequencing (NGS). First, we outline how NGS is currently used in the pharmaceutical industry, and how it may apply to CHO virus testing. Second, we examine CHO virus contamination history. Since prior virus contaminants can replicate in the production bioreactor, we perform a literature search and classify 159 viruses as high, medium, low, or unknown risk based on their ability to infect CHO cells. Overall, the risk of virus contamination during the CHO manufacturing process is low. Only six viruses were reported to have contaminated CHO bioprocesses over the past several decades, and were primarily caused by fetal bovine serum or cell culture components. These virus contamination events can be mitigated through limitation and control of raw materials, combined with virus testing and virus clearance technologies. The list of CHO infectious viruses provides a starting framework for virus safety risk assessment and NGS development. Furthermore, ICH Q5A (R2) includes NGS as a molecular method for adventitious agent testing, paving a path forward for modernizing CHO virus testing.
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Affiliation(s)
- Tiffany Hsu
- Purification, Microbiology, and Virology, Genentech, a Member of the Roche Group, South San Francisco, California, USA
| | - Mary Jo Talley
- Purification, Microbiology, and Virology, Genentech, a Member of the Roche Group, South San Francisco, California, USA
| | - Ping Yang
- Purification, Microbiology, and Virology, Genentech, a Member of the Roche Group, South San Francisco, California, USA
| | - Angela Geiselhoeringer
- Purification, Microbiology, and Virology, Genentech, a Member of the Roche Group, South San Francisco, California, USA
| | - Cindy Yang
- Purification, Microbiology, and Virology, Genentech, a Member of the Roche Group, South San Francisco, California, USA
| | - Aditya Gorla
- Purification, Microbiology, and Virology, Genentech, a Member of the Roche Group, South San Francisco, California, USA
| | - M Julhasur Rahman
- Purification, Microbiology, and Virology, Genentech, a Member of the Roche Group, South San Francisco, California, USA
| | - Lindsey Silva
- Purification, Microbiology, and Virology, Genentech, a Member of the Roche Group, South San Francisco, California, USA
| | - Dayue Chen
- Purification, Microbiology, and Virology, Genentech, a Member of the Roche Group, South San Francisco, California, USA
| | - Bin Yang
- Purification, Microbiology, and Virology, Genentech, a Member of the Roche Group, South San Francisco, California, USA
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Cabrera LE, Buckner C, Then V, Mäki S, Vapalahti O, Vaheri A, Hepojoki J, Tietäväinen J, Mäkelä S, Mustonen J, Strandin T. Circulating mucosal-like IgA responses increase with severity of Puumala orthohantavirus-caused hemorrhagic fever with renal syndrome. Front Immunol 2024; 15:1480041. [PMID: 39512345 PMCID: PMC11540702 DOI: 10.3389/fimmu.2024.1480041] [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: 08/13/2024] [Accepted: 10/08/2024] [Indexed: 11/15/2024] Open
Abstract
Old World Orthohantaviruses cause hemorrhagic fever with renal syndrome (HFRS) characterized by increased vascular permeability and acute kidney injury (AKI). Despite the systemic nature of the disease, the virus enters humans through inhalation and therefore initially encounters the immunoglobulin class A (IgA) dominated mucosal immune system. Herein, we characterized systemic IgA responses and their potential relationship to the mucosal immune activation by examining blood samples obtained from patients hospitalized due to acute Puumala orthohantavirus infection. Our findings reveal increased frequencies of putative IgA-expressing circulating mucosal-associated B1 cells and plasmablasts, as well as elevated levels of polyreactive, polymeric, virus-specific and secretory IgA in the acute stage of the disease. Importantly, the levels of circulating virus-specific and secretory IgA, as well as the putative IgA+ B1 cells, increased with the severity of AKI. Furthermore, circulating polymeric IgA displayed enhanced effector functions by forming stable complexes with the IgA receptor CD89 and induced pro-inflammatory neutrophil responses. These results suggest that excessive levels of circulating mucosal-like IgA might serve as a biomarker for HFRS disease progression.
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Affiliation(s)
- Luz E. Cabrera
- Viral Zoonosis Research Unit, Department of Virology, Medicum, University of Helsinki, Helsinki, Finland
| | - Cienna Buckner
- Viral Zoonosis Research Unit, Department of Virology, Medicum, University of Helsinki, Helsinki, Finland
| | - Veronica Then
- Viral Zoonosis Research Unit, Department of Virology, Medicum, University of Helsinki, Helsinki, Finland
| | - Sanna Mäki
- Viral Zoonosis Research Unit, Department of Virology, Medicum, University of Helsinki, Helsinki, Finland
| | - Olli Vapalahti
- Viral Zoonosis Research Unit, Department of Virology, Medicum, University of Helsinki, Helsinki, Finland
| | - Antti Vaheri
- Viral Zoonosis Research Unit, Department of Virology, Medicum, University of Helsinki, Helsinki, Finland
| | - Jussi Hepojoki
- Viral Zoonosis Research Unit, Department of Virology, Medicum, University of Helsinki, Helsinki, Finland
| | - Johanna Tietäväinen
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
| | - Satu Mäkelä
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
| | - Jukka Mustonen
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
| | - Tomas Strandin
- Viral Zoonosis Research Unit, Department of Virology, Medicum, University of Helsinki, Helsinki, Finland
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Modestino L, Tumminelli M, Mormile I, Cristinziano L, Ventrici A, Trocchia M, Ferrara AL, Palestra F, Loffredo S, Marone G, Rossi FW, de Paulis A, Galdiero MR. Neutrophil exhaustion and impaired functionality in psoriatic arthritis patients. Front Immunol 2024; 15:1448560. [PMID: 39308858 PMCID: PMC11412820 DOI: 10.3389/fimmu.2024.1448560] [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: 06/13/2024] [Accepted: 08/21/2024] [Indexed: 09/25/2024] Open
Abstract
Background Neutrophils (polymorphonuclear leukocytes, PMNs) are the most abundant subtype of white blood cells and are among the main actors in the inflammatory response. Psoriatic arthritis (PsA) is a chronic inflammatory disease affecting both the axial and peripheral joints. Typically associated with psoriasis, PsA can also affect multiple systems and organs, including the nails and entheses. Despite the involvement of PMNs in PsA, their specific role in the disease remains poorly understood. This study aimed to characterize the biological functions of PMNs and neutrophil-related mediators in PsA patients. Materials and methods 31 PsA patients and 22 healthy controls (HCs) were prospectively recruited. PMNs were isolated from peripheral blood and subjected to in vitro stimulation with lipopolysaccharide (LPS), N-Formylmethionyl-leucyl-phenylalanine (fMLP), tumor necrosis factor (TNF), phorbol 12-myristate 13-acetate (PMA), or control medium. Highly purified peripheral blood PMNs (>99%) were evaluated for activation status, reactive oxygen species (ROS) production, phagocytic activity, granular enzyme and neutrophil extracellular traps (NETs) release. Serum levels of matrix metalloproteinase-9 (MMP-9), myeloperoxidase (MPO), TNF, interleukin 23 (IL-23), and interleukin 17 (IL-17) were measured by ELISA. Serum Citrullinated histone H3 (CitH3) was measured as a NET biomarker. Results Activated PMNs from PsA patients displayed reduced activation, decreased ROS production, and impaired phagocytic activity upon stimulation with TNF, compared to HCs. PMNs from PsA patients also displayed reduced granular enzyme (MPO) and NET release. Serum analyses revealed elevated levels of MMP-9, MPO, TNF, IL-23, IL-17, and CitH3 in PsA patients compared to HCs. Serum CitH3 levels positively correlated with MPO and TNF concentrations, and IL-17 concentrations were positively correlated with IL-23 levels in PsA patients. These findings indicate that PMNs from PsA patients show reduced in vitro activation and function, and an increased presence of neutrophil-derived mediators (MMP-9, MPO, TNF, IL-23, IL-17, and CitH3) in their serum. Conclusions Taken together, our findings suggest that PMNs from PsA patients exhibit an "exhausted" phenotype, highlighting their plasticity and multifaceted roles in PsA pathophysiology.
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Affiliation(s)
- Luca Modestino
- Department of Internal Medicine and Clinical Immunology, University Hospital of Naples Federico II, Naples, Italy
| | - Manuela Tumminelli
- Department of Internal Medicine and Clinical Immunology, University Hospital of Naples Federico II, Naples, Italy
| | - Ilaria Mormile
- Department of Internal Medicine and Clinical Immunology, University Hospital of Naples Federico II, Naples, Italy
- Department of Translational Medical Sciences (DiSMeT), University of Naples Federico II, Naples, Italy
| | - Leonardo Cristinziano
- Department of Translational Medical Sciences (DiSMeT), University of Naples Federico II, Naples, Italy
- Center for Basic and Clinical Immunology Research (CISI), University of Naples Federico II, Naples, Italy
| | - Annagioia Ventrici
- Department of Translational Medical Sciences (DiSMeT), University of Naples Federico II, Naples, Italy
| | - Marialuisa Trocchia
- Department of Translational Medical Sciences (DiSMeT), University of Naples Federico II, Naples, Italy
| | - Anne Lise Ferrara
- Department of Translational Medical Sciences (DiSMeT), University of Naples Federico II, Naples, Italy
| | - Francesco Palestra
- Department of Translational Medical Sciences (DiSMeT), University of Naples Federico II, Naples, Italy
| | - Stefania Loffredo
- Department of Translational Medical Sciences (DiSMeT), University of Naples Federico II, Naples, Italy
- Center for Basic and Clinical Immunology Research (CISI), University of Naples Federico II, Naples, Italy
| | - Gianni Marone
- Department of Translational Medical Sciences (DiSMeT), University of Naples Federico II, Naples, Italy
- Center for Basic and Clinical Immunology Research (CISI), University of Naples Federico II, Naples, Italy
- Institute of Experimental Endocrinology and Oncology ‘G. Salvatore’, National Research Council (CNR), Naples, Italy
| | - Francesca Wanda Rossi
- Department of Internal Medicine and Clinical Immunology, University Hospital of Naples Federico II, Naples, Italy
- Department of Translational Medical Sciences (DiSMeT), University of Naples Federico II, Naples, Italy
- Center for Basic and Clinical Immunology Research (CISI), University of Naples Federico II, Naples, Italy
| | - Amato de Paulis
- Department of Internal Medicine and Clinical Immunology, University Hospital of Naples Federico II, Naples, Italy
- Department of Translational Medical Sciences (DiSMeT), University of Naples Federico II, Naples, Italy
- Center for Basic and Clinical Immunology Research (CISI), University of Naples Federico II, Naples, Italy
| | - Maria Rosaria Galdiero
- Department of Internal Medicine and Clinical Immunology, University Hospital of Naples Federico II, Naples, Italy
- Department of Translational Medical Sciences (DiSMeT), University of Naples Federico II, Naples, Italy
- Center for Basic and Clinical Immunology Research (CISI), University of Naples Federico II, Naples, Italy
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10
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Liu Z, Xue X, Geng S, Jiang Z, Ge Z, Zhao C, Xu Y, Wang X, Zhang W, Lin L, Chen Z. The differences in cytokine signatures between severe fever with thrombocytopenia syndrome (SFTS) and hemorrhagic fever with renal syndrome (HFRS). J Virol 2024; 98:e0078624. [PMID: 38916398 PMCID: PMC11265425 DOI: 10.1128/jvi.00786-24] [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: 05/02/2024] [Accepted: 06/03/2024] [Indexed: 06/26/2024] Open
Abstract
Severe fever with thrombocytopenia syndrome (SFTS) virus and hantavirus are categorized under the Bunyavirales order. The severe disease progression in both SFTS and hemorrhagic fever with renal syndrome (HFRS) is associated with cytokine storms. This study aimed to explore the differences in cytokine profiles and immune responses between the two diseases. A cross-sectional, single-center study involved 100 participants, comprising 46 SFTS patients, 48 HFRS patients, and 6 healthy controls. The study employed the Luminex cytokine detection platform to measure 48 cytokines. The differences in cytokine profiles and immune characteristics between the two diseases were further analyzed using multiple linear regression, principal component analysis, and random forest method. Among the 48 cytokines tested, 30 showed elevated levels in SFTS and/or HFRS compared to the healthy control group. Furthermore, there were 19 cytokines that exhibited significant differences between SFTS and HFRS. Random forest analysis suggested that TRAIL and CTACK were predictive of SFTS, while IL2Ralpha, MIG, IL-8, IFNalpha2, HGF, SCF, MCP-3, and PDGFBB were more common with HFRS. It was further verified by the receiver operating characteristic with area under the curve >0.8 and P-values <0.05, except for TRAIL. Significant differences were observed in the cytokine profiles of SFTS and HFRS, with TRAIL, IL2Ralpha, MIG, and IL-8 being the top 4 cytokines that most clearly distinguished the two diseases. IMPORTANCE SFTS and HFRS differ in terms of cytokine immune characteristics. TRAIL, IL-2Ralpha, MIG, and IL-8 were the top 4 that differed markedly between SFTS and HFRS.
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Affiliation(s)
- Zishuai Liu
- Department of Infectious Disease, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Xiaoyu Xue
- Department of Infectious Disease, Beijing Ditan Hospital, Peking University, Beijing, China
| | - Shuying Geng
- Department of Infectious Diseases, Yantai Qishan Hospital, Yantai, China
| | - Zhouling Jiang
- Department of Infectious Disease, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Ziruo Ge
- Department of Infectious Disease, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Chenxi Zhao
- Department of Infectious Disease, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Yanli Xu
- Department of Infectious Diseases, Yantai Qishan Hospital, Yantai, China
| | - Xiaolei Wang
- Department of Infectious Disease, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Wei Zhang
- Department of Infectious Disease, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Ling Lin
- Department of Infectious Diseases, Yantai Qishan Hospital, Yantai, China
| | - Zhihai Chen
- Department of Infectious Disease, Beijing Ditan Hospital, Capital Medical University, Beijing, China
- Department of Infectious Disease, Beijing Ditan Hospital, Peking University, Beijing, China
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11
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Cabrera LE, Tietäväinen J, Jokiranta ST, Mäkelä S, Vaheri A, Mustonen J, Vapalahti O, Kanerva M, Strandin T. Maturing neutrophils of lower density associate with thrombocytopenia in Puumala orthohantavirus-caused hemorrhagic fever with renal syndrome. Front Immunol 2024; 15:1419787. [PMID: 39011044 PMCID: PMC11246883 DOI: 10.3389/fimmu.2024.1419787] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2024] [Accepted: 05/29/2024] [Indexed: 07/17/2024] Open
Abstract
Puumala orthohantavirus-caused hemorrhagic fever with renal syndrome (PUUV-HFRS) is characterized by strong neutrophil activation. Neutrophils are the most abundant immune cell type in the circulation and are specially equipped to rapidly respond to infections. They are more heterogenous than previously appreciated, with specific neutrophil subsets recently implicated in inflammation and immunosuppression. Furthermore, neutrophils can be divided based on their density to either low-density granulocytes (LDGs) or "normal density" polymorphonuclear cell (PMN) fractions. In the current study we aimed to identify and characterize the different neutrophil subsets in the circulation of PUUV-HFRS patients. PMNs exhibited an activation of antiviral pathways, while circulating LDGs were increased in frequency following acute PUUV-HFRS. Furthermore, cell surface marker expression analysis revealed that PUUV-associated LDGs are primarily immature and most likely reflect an increased neutrophil production from the bone marrow. Interestingly, both the frequency of LDGs and the presence of a "left shift" in blood associated with the extent of thrombocytopenia, one of the hallmarks of severe HFRS, suggesting that maturing neutrophils could play a role in disease pathogenesis. These results imply that elevated circulating LDGs might be a general finding in acute viral infections. However, in contrast to the COVID-19 associated LDGs described previously, the secretome of PUUV LDGs did not show significant immunosuppressive ability, which suggests inherent biological differences in the LDG responses that can be dependent on the causative virus or differing infection kinetics.
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Affiliation(s)
- Luz E Cabrera
- Viral Zoonosis Research Unit, Department of Virology, Medicum, University of Helsinki, Helsinki, Finland
| | - Johanna Tietäväinen
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
| | - Suvi T Jokiranta
- Department of Bacteriology and Immunology, University of Helsinki, Helsinki, Finland
- Translational Immunology Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Satu Mäkelä
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
| | - Antti Vaheri
- Viral Zoonosis Research Unit, Department of Virology, Medicum, University of Helsinki, Helsinki, Finland
| | - Jukka Mustonen
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
| | - Olli Vapalahti
- Viral Zoonosis Research Unit, Department of Virology, Medicum, University of Helsinki, Helsinki, Finland
| | - Mari Kanerva
- Infectious Diseases, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Tomas Strandin
- Viral Zoonosis Research Unit, Department of Virology, Medicum, University of Helsinki, Helsinki, Finland
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12
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García M, Carrasco García A, Weigel W, Christ W, Lira-Junior R, Wirth L, Tauriainen J, Maleki K, Vanoni G, Vaheri A, Mäkelä S, Mustonen J, Nordgren J, Smed-Sörensen A, Strandin T, Mjösberg J, Klingström J. Innate lymphoid cells are activated in HFRS, and their function can be modulated by hantavirus-induced type I interferons. PLoS Pathog 2024; 20:e1012390. [PMID: 39038044 PMCID: PMC11293681 DOI: 10.1371/journal.ppat.1012390] [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: 04/25/2024] [Revised: 08/01/2024] [Accepted: 07/03/2024] [Indexed: 07/24/2024] Open
Abstract
Hantaviruses cause the acute zoonotic diseases hemorrhagic fever with renal syndrome (HFRS) and hantavirus pulmonary syndrome (HPS). Infected patients show strong systemic inflammation and immune cell activation. NK cells are highly activated in HFRS, suggesting that also other innate lymphoid cells (ILCs) might be responding to infection. Here, we characterized peripheral ILC responses, and measured plasma levels of soluble factors and plasma viral load, in 17 Puumala virus (PUUV)-infected HFRS patients. This revealed an increased frequency of ILC2 in patients, in particular the ILC2 lineage-committed c-Kitlo ILC2 subset. Patients' ILCs showed an activated profile with increased proliferation and displayed altered expression of several homing markers. How ILCs are activated during viral infection is largely unknown. When analyzing PUUV-mediated activation of ILCs in vitro we observed that this was dependent on type I interferons, suggesting a role for type I interferons-produced in response to virus infection-in the activation of ILCs. Further, stimulation of naïve ILC2s with IFN-β affected ILC2 cytokine responses in vitro, causing decreased IL-5 and IL-13, and increased IL-10, CXCL10, and GM-CSF secretion. These results show that ILCs are activated in HFRS patients and suggest that the classical antiviral type I IFNs are involved in shaping ILC functions.
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Affiliation(s)
- Marina García
- Center for Infectious Medicine, Department of Medicine Huddinge, Karolinska Institutet, Stockholm, Sweden
| | - Anna Carrasco García
- Center for Infectious Medicine, Department of Medicine Huddinge, Karolinska Institutet, Stockholm, Sweden
| | - Whitney Weigel
- Center for Infectious Medicine, Department of Medicine Huddinge, Karolinska Institutet, Stockholm, Sweden
| | - Wanda Christ
- Center for Infectious Medicine, Department of Medicine Huddinge, Karolinska Institutet, Stockholm, Sweden
| | - Ronaldo Lira-Junior
- Section of Oral Diagnostics and Surgery, Division of Oral Diagnostics and Rehabilitation, Department of Dental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Lorenz Wirth
- Center for Infectious Medicine, Department of Medicine Huddinge, Karolinska Institutet, Stockholm, Sweden
- Mechanistic & Structural Biology, Discovery Sciences, R&D, AstraZeneca, Gothenburg, Sweden
| | - Johanna Tauriainen
- Center for Infectious Medicine, Department of Medicine Huddinge, Karolinska Institutet, Stockholm, Sweden
| | - Kimia Maleki
- Center for Infectious Medicine, Department of Medicine Huddinge, Karolinska Institutet, Stockholm, Sweden
| | - Giulia Vanoni
- Institut Curie, PSL University, Inserm, Immunity and Cancer, Paris, France
| | - Antti Vaheri
- Department of Virology, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Satu Mäkelä
- Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Jukka Mustonen
- Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Johan Nordgren
- Division of Molecular Medicine and Virology, Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
| | - Anna Smed-Sörensen
- Division of Immunology and Allergy, Department of Medicine Solna, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - Tomas Strandin
- Department of Virology, Faculty of Medicine, University of Helsinki, Helsinki, Finland
- Division of Immunology and Allergy, Department of Medicine Solna, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - Jenny Mjösberg
- Center for Infectious Medicine, Department of Medicine Huddinge, Karolinska Institutet, Stockholm, Sweden
| | - Jonas Klingström
- Center for Infectious Medicine, Department of Medicine Huddinge, Karolinska Institutet, Stockholm, Sweden
- Division of Molecular Medicine and Virology, Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
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13
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Li Q, Gan Q, Chi H, Meng X, Dalmo RA, Sheng X, Tang X, Xing J, Zhan W. Extracellular traps in skin lesions infected with lymphocystis disease virus in black rockfish (Sebastes schlegelii). FISH & SHELLFISH IMMUNOLOGY 2024; 150:109643. [PMID: 38763177 DOI: 10.1016/j.fsi.2024.109643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Revised: 05/16/2024] [Accepted: 05/17/2024] [Indexed: 05/21/2024]
Abstract
The lymphocystis disease (LCD), caused by Lymphocystis disease virus (LCDV), is a benign and self-limiting disease described in a many freshwater and marine fish species. Hypertrophic fibroblasts and extensive aggregation of inflammatory cells are characteristics of LCD. In the present study, small animal imaging and ultrastructural investigations were carried out on the lymphocystis nodules of black rockfish (Sebastes schlegelii) naturally infected with lymphocystis iridovirus, to assess pathology, and the exudate with particular attention to the formation of extracellular traps (ETs) in vivo. Ex vivo were examined by nodules sections and primary cells stimulation. By histopathological analysis, the nodules contained infiltrated inflammatory cells and extensive basophilic fibrillar filaments at the periphery of the hypertrophied fibroblasts. ETs were assessed in nodules samples using indirect immunofluorescence to detect DNA and myeloperoxidase. Moreover, LCDV was able to infect peritoneal cells of black rockfish in vitro and induce the formation of ETs within 4 h. In summary, this study proved that ETs are involved in the response to LCDV infection and may be involved in formation of lymphoid nodules. Taken together, the findings provide a new perspective to determine the impact factors on the growth of nodules.
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Affiliation(s)
- Qian Li
- Laboratory of Pathology and Immunology of Aquatic Animals, KLMME, Ocean University of China, Qingdao 266003, China
| | - Qiujie Gan
- Laboratory of Pathology and Immunology of Aquatic Animals, KLMME, Ocean University of China, Qingdao 266003, China
| | - Heng Chi
- Laboratory of Pathology and Immunology of Aquatic Animals, KLMME, Ocean University of China, Qingdao 266003, China; Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China.
| | - Xianghu Meng
- Laboratory of Pathology and Immunology of Aquatic Animals, KLMME, Ocean University of China, Qingdao 266003, China
| | - Roy Ambli Dalmo
- Norwegian College of Fishery Science, Faculty of Biosciences, Fisheries and Economics, University of Tromsø - The Artic University of Norway, Tromsø, Norway
| | - Xiuzhen Sheng
- Laboratory of Pathology and Immunology of Aquatic Animals, KLMME, Ocean University of China, Qingdao 266003, China; Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Xiaoqian Tang
- Laboratory of Pathology and Immunology of Aquatic Animals, KLMME, Ocean University of China, Qingdao 266003, China; Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Jing Xing
- Laboratory of Pathology and Immunology of Aquatic Animals, KLMME, Ocean University of China, Qingdao 266003, China; Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Wenbin Zhan
- Laboratory of Pathology and Immunology of Aquatic Animals, KLMME, Ocean University of China, Qingdao 266003, China; Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
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14
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Nusshag C, Gruber G, Zeier M, Krautkrämer E. Neutrophil-to-lymphocyte ratio is elevated in acute hantavirus infection and correlates with markers of disease severity. J Med Virol 2024; 96:e29759. [PMID: 38899399 DOI: 10.1002/jmv.29759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Revised: 06/03/2024] [Accepted: 06/11/2024] [Indexed: 06/21/2024]
Abstract
Pathogenic Eurasian hantaviruses cause hemorrhagic fever with renal syndrome (HFRS), which is characterized by acute kidney injury. The clinical course shows a broad range of severity and is influenced by direct and immune-mediated effects. The neutrophil-to-lymphocyte ratio (NLR) is a marker of systemic inflammation and predicts severity and outcome in various diseases. Therefore, we examined the role of NLR in HFRS caused by hantavirus Puumala (PUUV) and its association with disease severity and kidney injury. We detected elevated NLR levels on admission (NLRadm: median 3.82, range 1.75-7.59), which increased during acute HFRS. Maximum NLR levels (NLRmax: median 4.19, range 1.75-13.16) were 2.38-fold higher compared to the reference NLR level of 1.76 in the general population. NLR levels on admission correlate with markers of severity (length of hospital stay, serum creatinine) but not with other markers of severity (leukocytes, platelets, C-reactive protein, lactate dehydrogenase, serum albumin, proteinuria). Interestingly, levels of nephrin, which is a specific marker of podocyte damage in kidney injury, are highest on admission and correlate with NLRmax, but not with NLRadm. Together, we observed a correlation between systemic inflammation and the severity of HFRS, but our results also revealed that podocyte damage precedes these inflammatory processes.
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Affiliation(s)
- Christian Nusshag
- Department of Nephrology, University of Heidelberg, Heidelberg, Germany
| | - Gefion Gruber
- Department of Nephrology, University of Heidelberg, Heidelberg, Germany
| | - Martin Zeier
- Department of Nephrology, University of Heidelberg, Heidelberg, Germany
| | - Ellen Krautkrämer
- Department of Nephrology, University of Heidelberg, Heidelberg, Germany
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15
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Wu X, Yang Y. Neutrophil extracellular traps (NETs) and fibrotic diseases. Int Immunopharmacol 2024; 133:112085. [PMID: 38626550 DOI: 10.1016/j.intimp.2024.112085] [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: 02/28/2024] [Revised: 04/07/2024] [Accepted: 04/10/2024] [Indexed: 04/18/2024]
Abstract
Fibrosis, a common cause and serious outcome of organ failure that can affect any organ, is responsible for up to 45% of all deaths in various clinical settings. Both preclinical models and clinical trials investigating various organ systems have shown that fibrosis is a highly dynamic process. Although many studies have sought to gain understanding of the mechanism of fibrosis progression, their findings have been mixed. In recent years, increasing evidence indicates that neutrophil extracellular traps (NETs) are involved in many inflammatory and autoimmune disorders and participate in the regulation of fibrotic processes in various organs and systems. In this review, we summarize the current understanding of the role of NETs in fibrosis development and progression and their possibility as therapeutic targets.
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Affiliation(s)
- Xiaojiao Wu
- School of Pediatrics, Nanjing Medical University, Nanjing, China
| | - Yang Yang
- Department of Gastroenterology, Sir Run Run Hospital, Nanjing Medical University, Nanjing, China.
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16
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Song M, Zhang C, Cheng S, Ouyang D, Ping Y, Yang J, Zhang Y, Tang Y, Chen H, Wang QJ, Li YQ, He J, Xiang T, Zhang Y, Xia JC. DNA of Neutrophil Extracellular Traps Binds TMCO6 to Impair CD8+ T-cell Immunity in Hepatocellular Carcinoma. Cancer Res 2024; 84:1613-1629. [PMID: 38381538 DOI: 10.1158/0008-5472.can-23-2986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 12/07/2023] [Accepted: 02/16/2024] [Indexed: 02/23/2024]
Abstract
Neutrophil extracellular traps (NET), formed by the extracellular release of decondensed chromatin and granules, have been shown to promote tumor progression and metastasis. Tumor-associated neutrophils in hepatocellular carcinoma (HCC) are prone to NET formation, highlighting the need for a more comprehensive understanding of the mechanisms of action of NETs in liver cancer. Here, we showed that DNA of NETs (NET-DNA) binds transmembrane and coiled-coil domains 6 (TMCO6) on CD8+ T cells to impair antitumor immunity and thereby promote HCC progression. TGFβ1 induced NET formation, which recruited CD8+ T cells. Binding to NET-DNA inhibited CD8+ T cells function while increasing apoptosis and TGFβ1 secretion, forming a positive feedback loop to further stimulate NET formation and immunosuppression. Mechanistically, the N-terminus of TMCO6 interacted with NET-DNA and suppressed T-cell receptor signaling and NFκB p65 nuclear translocation. Blocking NET formation by inhibiting PAD4 induced potent antitumor effects in wild-type mice but not TMCO6-/- mice. In clinical samples, CD8+ T cells expressing TMCO6 had an exhausted phenotype. TGFβ1 signaling inhibition or TMCO6 deficiency combined with anti-PD-1 abolished NET-driven HCC progression in vivo. Collectively, this study unveils the role of NET-DNA in impairing CD8+ T-cell immunity by binding TMCO6 and identifies targeting this axis as an immunotherapeutic strategy for blocking HCC progression. SIGNIFICANCE TMCO6 is a receptor for DNA of NETs that mediates CD8+ T-cell dysfunction in HCC, indicating that the NET-TMCO6 axis is a promising target for overcoming immunosuppression in liver cancer.
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Affiliation(s)
- Mengjia Song
- Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, P.R. China
- Department of Pediatric Oncology, Sun Yat-sen University Cancer Center, Guangzhou, P.R. China
| | - Chaoqi Zhang
- Department of Thoracic Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, P.R. China
| | - Shaoyan Cheng
- Department of Medical Oncology, The Affiliated Cancer Hospital of Zhengzhou University and Henan Cancer Hospital, Zhengzhou, P.R. China
| | - Dijun Ouyang
- Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, P.R. China
- Department of Biotherapy, Sun Yat-sen University Cancer Center, Guangzhou, P.R. China
| | - Yu Ping
- Department of Biotherapy Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, P.R. China
| | - Jieying Yang
- Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, P.R. China
- Department of Biotherapy, Sun Yat-sen University Cancer Center, Guangzhou, P.R. China
| | - YaoJun Zhang
- Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, P.R. China
- Department of Hepatobiliary Oncology, Sun Yat-sen University Cancer Center, Guangzhou, P.R. China
| | - Yan Tang
- Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, P.R. China
- Department of Biotherapy, Sun Yat-sen University Cancer Center, Guangzhou, P.R. China
| | - Hao Chen
- Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, P.R. China
- Department of Biotherapy, Sun Yat-sen University Cancer Center, Guangzhou, P.R. China
| | - Qi-Jing Wang
- Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, P.R. China
- Department of Biotherapy, Sun Yat-sen University Cancer Center, Guangzhou, P.R. China
| | - Yong-Qiang Li
- Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, P.R. China
- Department of Biotherapy, Sun Yat-sen University Cancer Center, Guangzhou, P.R. China
| | - Jia He
- Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, P.R. China
- Department of Biotherapy, Sun Yat-sen University Cancer Center, Guangzhou, P.R. China
| | - Tong Xiang
- Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, P.R. China
- Department of Biotherapy, Sun Yat-sen University Cancer Center, Guangzhou, P.R. China
| | - Yizhuo Zhang
- Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, P.R. China
- Department of Pediatric Oncology, Sun Yat-sen University Cancer Center, Guangzhou, P.R. China
| | - Jian-Chuan Xia
- Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, P.R. China
- Department of Biotherapy, Sun Yat-sen University Cancer Center, Guangzhou, P.R. China
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17
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Schrottmaier WC, Schmuckenschlager A, Thunberg T, Wigren-Byström J, Fors-Connolly AM, Assinger A, Ahlm C, Forsell MNE. Direct and indirect effects of Puumala hantavirus on platelet function. Thromb Res 2024; 233:41-54. [PMID: 38006765 DOI: 10.1016/j.thromres.2023.11.017] [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: 08/23/2023] [Revised: 10/27/2023] [Accepted: 11/15/2023] [Indexed: 11/27/2023]
Abstract
Thrombocytopenia is a cardinal symptom of hantavirus-induced diseases including Puumala virus (PUUV)-induced hemorrhagic fever with renal syndrome (HFRS), which is associated with impaired platelet function, bleeding manifestations and augmented thrombotic risk. However, the underlying mechanisms causing thrombocytopenia and platelet hypo-responsiveness are unknown. Thus, we investigated the direct and indirect impact of PUUV on platelet production, function and degradation. Analysis of PUUV-HFRS patient blood revealed that platelet hypo-responsiveness in PUUV infection was cell-intrinsic and accompanied by reduced platelet-leukocyte aggregates (PLAs) and upregulation of monocyte tissue factor (TF), whereas platelet vasodilator-stimulated phosphoprotein (VASP) phosphorylation was comparable to healthy controls. Plasma CXCL4 levels followed platelet count dynamics throughout disease course. PUUV activated both neutrophils and monocytes in vitro, but platelet desialylation, degranulation and GPIIb/IIIa activation as well as PLA formation and endothelial adhesion under flow remained unaltered in the presence of PUUV. Further, MEG-01 megakaryocytes infected with PUUV displayed unaltered polyploidization, expression of surface receptors and platelet production. However, infection of endothelial cells with PUUV significantly increased platelet sequestration. Our data thus demonstrate that although platelet production, activation or degradation are not directly modulated, PUUV indirectly fosters thrombocytopenia by sequestration of platelets to infected endothelium. Upregulation of immunothrombotic processes in PUUV-HFRS may further contribute to platelet dysfunction and consumption. Given the pathophysiologic similarities of hantavirus infections, our findings thus provide important insights into the mechanisms underlying thrombocytopenia and highlight immune-mediated coagulopathy as potential therapeutic target.
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Affiliation(s)
- Waltraud C Schrottmaier
- Institute of Vascular Biology and Thrombosis Research, Center of Physiology and Pharmacology, Medical University of Vienna, Vienna, Austria; Department of Clinical Microbiology, Umeå University, Umeå, Sweden.
| | - Anna Schmuckenschlager
- Institute of Vascular Biology and Thrombosis Research, Center of Physiology and Pharmacology, Medical University of Vienna, Vienna, Austria
| | - Therese Thunberg
- Department of Clinical Microbiology, Umeå University, Umeå, Sweden
| | | | | | - Alice Assinger
- Institute of Vascular Biology and Thrombosis Research, Center of Physiology and Pharmacology, Medical University of Vienna, Vienna, Austria
| | - Clas Ahlm
- Department of Clinical Microbiology, Umeå University, Umeå, Sweden
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18
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Perdomo J, Leung HHL. Immune Thrombosis: Exploring the Significance of Immune Complexes and NETosis. BIOLOGY 2023; 12:1332. [PMID: 37887042 PMCID: PMC10604267 DOI: 10.3390/biology12101332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2023] [Revised: 09/26/2023] [Accepted: 10/11/2023] [Indexed: 10/28/2023]
Abstract
Neutrophil extracellular traps (NETs) are major contributors to inflammation and autoimmunity, playing a key role in the development of thrombotic disorders. NETs, composed of DNA, histones, and numerous other proteins serve as scaffolds for thrombus formation and promote platelet activation, coagulation, and endothelial dysfunction. Accumulating evidence indicates that NETs mediate thrombosis in autoimmune diseases, viral and bacterial infections, cancer, and cardiovascular disease. This article reviews the role and mechanisms of immune complexes in NETs formation and their contribution to the generation of a prothrombotic state. Immune complexes are formed by interactions between antigens and antibodies and can induce NETosis by the direct activation of neutrophils via Fc receptors, via platelet activation, and through endothelial inflammation. We discuss the mechanisms by which NETs induced by immune complexes contribute to immune thrombotic processes and consider the potential development of therapeutic strategies. Targeting immune complexes and NETosis hold promise for mitigating thrombotic events and reducing the burden of immune thrombosis.
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Affiliation(s)
- José Perdomo
- Haematology Research Group, Faculty Medicine and Health, Central Clinical School, University of Sydney, Sydney, NSW 2006, Australia
| | - Halina H. L. Leung
- Haematology Research Unit, St George & Sutherland Clinical Campuses, Faculty of Medicine & Health, School of Clinical Medicine, University of New South Wales, Kogarah, NSW 2217, Australia;
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19
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Yuan C, Ma Z, Xie J, Li W, Su L, Zhang G, Xu J, Wu Y, Zhang M, Liu W. The role of cell death in SARS-CoV-2 infection. Signal Transduct Target Ther 2023; 8:357. [PMID: 37726282 PMCID: PMC10509267 DOI: 10.1038/s41392-023-01580-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 06/09/2023] [Accepted: 07/31/2023] [Indexed: 09/21/2023] Open
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), showing high infectiousness, resulted in an ongoing pandemic termed coronavirus disease 2019 (COVID-19). COVID-19 cases often experience acute respiratory distress syndrome, which has caused millions of deaths. Apart from triggering inflammatory and immune responses, many viral infections can cause programmed cell death in infected cells. Cell death mechanisms have a vital role in maintaining a suitable environment to achieve normal cell functionality. Nonetheless, these processes are dysregulated, potentially contributing to disease pathogenesis. Over the past decades, multiple cell death pathways are becoming better understood. Growing evidence suggests that the induction of cell death by the coronavirus may significantly contributes to viral infection and pathogenicity. However, the interaction of SARS-CoV-2 with cell death, together with its associated mechanisms, is yet to be elucidated. In this review, we summarize the existing evidence concerning the molecular modulation of cell death in SARS-CoV-2 infection as well as viral-host interactions, which may shed new light on antiviral therapy against SARS-CoV-2.
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Affiliation(s)
- Cui Yuan
- College of Life Sciences, Henan Agricultural University, Zhengzhou, China
| | - Zhenling Ma
- College of Life Sciences, Henan Agricultural University, Zhengzhou, China
| | - Jiufeng Xie
- College of Life Sciences, Henan Agricultural University, Zhengzhou, China
| | - Wenqing Li
- College of Life Sciences, Henan Agricultural University, Zhengzhou, China
| | - Lijuan Su
- College of Life Sciences, Henan Agricultural University, Zhengzhou, China
| | - Guozhi Zhang
- College of Life Sciences, Henan Agricultural University, Zhengzhou, China
| | - Jun Xu
- College of Life Sciences, Henan Agricultural University, Zhengzhou, China
| | - Yaru Wu
- College of Life Sciences, Henan Agricultural University, Zhengzhou, China
| | - Min Zhang
- College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, China
| | - Wei Liu
- College of Life Sciences, Henan Agricultural University, Zhengzhou, China.
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20
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Matsumoto K, Suzuki K, Yasuoka H, Hirahashi J, Yoshida H, Magi M, Noguchi-Sasaki M, Kaneko Y, Takeuchi T. Longitudinal monitoring of circulating immune cell phenotypes in anti-neutrophil cytoplasmic antibody-associated vasculitis. Autoimmun Rev 2023; 22:103271. [PMID: 36627064 DOI: 10.1016/j.autrev.2023.103271] [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: 12/10/2022] [Accepted: 01/05/2023] [Indexed: 01/09/2023]
Abstract
Anti-neutrophil cytoplasmic antibody-associated vasculitis (AAV) is a necrotizing multiorgan autoimmune disease that affects small- to medium-sized blood vessels. Despite the improvements in treatments, half of the patients with AAV still experience disease relapses. In this review, we focus on peripheral leukocyte properties and phenotypes in patients with AAV. In particular, we explore longitudinal changes in circulating immune cell phenotypes during the active phase of the disease and treatment. The numbers and phenotypes of leukocytes in peripheral blood were differs between AAV and healthy controls, AAV in active versus inactive phase, AAV in treatment responders versus non-responders, and AAV with and without severe infection. Therefore, biomarkers detected in peripheral blood immune cells may be useful for longitudinal monitoring of disease activity in AAV.
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Affiliation(s)
- Kotaro Matsumoto
- Division of Rheumatology, Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan.
| | - Katsuya Suzuki
- Division of Rheumatology, Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Hidekata Yasuoka
- Division of Rheumatology, Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan; Division of Rheumatology, Department of Internal Medicine, Fujita Health University School of Medicine, Aichi, Japan
| | - Junichi Hirahashi
- Center for General Medicine Education, Keio University School of Medicine, Tokyo, Japan
| | | | - Mayu Magi
- Chugai Pharmaceutical Co. Ltd., Kanagawa, Japan
| | | | - Yuko Kaneko
- Division of Rheumatology, Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Tsutomu Takeuchi
- Division of Rheumatology, Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan
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21
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Abstract
The endothelium is a dynamic, semipermeable layer lining all blood vessels, regulating blood vessel formation and barrier function. Proper composition and function of the endothelial barrier are required for fluid homeostasis, and clinical conditions characterized by barrier disruption are associated with severe morbidity and high mortality rates. Endothelial barrier properties are regulated by cell-cell junctions and intracellular signaling pathways governing the cytoskeleton, but recent insights indicate an increasingly important role for integrin-mediated cell-matrix adhesion and signaling in endothelial barrier regulation. Here, we discuss diseases characterized by endothelial barrier disruption, and provide an overview of the composition of endothelial cell-matrix adhesion complexes and associated signaling pathways, their crosstalk with cell-cell junctions, and with other receptors. We further present recent insights into the role of cell-matrix adhesions in the developing and mature/adult endothelium of various vascular beds, and discuss how the dynamic regulation and turnover of cell-matrix adhesions regulates endothelial barrier function in (patho)physiological conditions like angiogenesis, inflammation and in response to hemodynamic stress. Finally, as clinical conditions associated with vascular leak still lack direct treatment, we focus on how understanding of endothelial cell-matrix adhesion may provide novel targets for treatment, and discuss current translational challenges and future perspectives.
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Affiliation(s)
- Jurjan Aman
- Department of Pulmonology, Amsterdam University Medical Center, the Netherlands (J.A.)
| | - Coert Margadant
- Department of Medical Oncology, Amsterdam University Medical Center, the NetherlandsInstitute of Biology, Leiden University, the Netherlands (C.M.)
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22
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Kasumba DM, Huot S, Caron E, Fortin A, Laflamme C, Zamorano Cuervo N, Lamontagne F, Pouliot M, Grandvaux N. DUOX2 regulates secreted factors in virus-infected respiratory epithelial cells that contribute to neutrophil attraction and activation. FASEB J 2023; 37:e22765. [PMID: 36607642 PMCID: PMC10107641 DOI: 10.1096/fj.202201205r] [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: 07/29/2022] [Revised: 12/10/2022] [Accepted: 12/27/2022] [Indexed: 01/07/2023]
Abstract
The first line of defense against respiratory viruses relies on the antiviral and proinflammatory cytokine response initiated in infected respiratory epithelial cells. The cytokine response not only restricts virus replication and spreading, but also orchestrates the subsequent immune response. The epithelial Dual Oxidase 2 (DUOX2) has recently emerged as a regulator of the interferon antiviral response. Here, we investigated the role of DUOX2 in the inflammatory cytokine response using a model of A549 cells deficient in DUOX2 generated using Crispr-Cas9 and infected by Sendai virus. We found that the absence of DUOX2 selectively reduced the induction of a restricted panel of 14 cytokines and chemokines secreted in response to Sendai virus by 20 to 89%. The secreted factors produced by epithelial cells upon virus infection promoted the migration, adhesion, and degranulation of primary human neutrophils, in part through the DUOX2-dependent secretion of TNF and chemokines. In contrast, DUOX2 expression did not impact neutrophil viability or NETosis, thereby highlighting a selective impact of DUOX2 in neutrophil functions. Overall, this study unveils previously unrecognized roles of epithelial DUOX2 in the epithelial-immune cells crosstalk during respiratory virus infection.
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Affiliation(s)
- Dacquin M Kasumba
- Centre de recherche du Centre Hospitalier de l'Université de Montréal, Montréal, Québec, Canada.,Department of Biochemistry and Molecular Medicine, Faculty of Medicine, Université de Montréal, Montréal, Québec, Canada
| | - Sandrine Huot
- Département de Microbiologie-Infectiologie et Immunologie, Faculté de Médecine de l'Université Laval, Centre de Recherche du CHU de Québec-Université Laval, Québec City, Québec, Canada.,Axe maladies infectieuses et immunitaires, Centre de Recherche du CHU de Québec - Université Laval, Québec City, Québec, Canada
| | - Elise Caron
- Centre de recherche du Centre Hospitalier de l'Université de Montréal, Montréal, Québec, Canada
| | - Audray Fortin
- Centre de recherche du Centre Hospitalier de l'Université de Montréal, Montréal, Québec, Canada
| | - Cynthia Laflamme
- Axe maladies infectieuses et immunitaires, Centre de Recherche du CHU de Québec - Université Laval, Québec City, Québec, Canada
| | - Natalia Zamorano Cuervo
- Centre de recherche du Centre Hospitalier de l'Université de Montréal, Montréal, Québec, Canada
| | - Felix Lamontagne
- Centre de recherche du Centre Hospitalier de l'Université de Montréal, Montréal, Québec, Canada
| | - Marc Pouliot
- Département de Microbiologie-Infectiologie et Immunologie, Faculté de Médecine de l'Université Laval, Centre de Recherche du CHU de Québec-Université Laval, Québec City, Québec, Canada.,Axe maladies infectieuses et immunitaires, Centre de Recherche du CHU de Québec - Université Laval, Québec City, Québec, Canada
| | - Nathalie Grandvaux
- Centre de recherche du Centre Hospitalier de l'Université de Montréal, Montréal, Québec, Canada.,Department of Biochemistry and Molecular Medicine, Faculty of Medicine, Université de Montréal, Montréal, Québec, Canada
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23
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Kapoor D, Shukla D. Neutrophil Extracellular Traps and Their Possible Implications in Ocular Herpes Infection. Pathogens 2023; 12:209. [PMID: 36839481 PMCID: PMC9958879 DOI: 10.3390/pathogens12020209] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 01/24/2023] [Accepted: 01/27/2023] [Indexed: 02/01/2023] Open
Abstract
Neutrophil extracellular traps (NETs) are net-like structures released from neutrophils. NETs predominantly contain cell-free deoxyribonucleic acid (DNA) decorated with histones and neutrophil granule proteins. Numerous extrinsic and intrinsic stimuli can induce the formation of NETs such as pathogens, cytokines, immune complexes, microcrystals, antibodies, and other physiological stimuli. The mechanism of NETosis induction can either be ROS-dependent or independent based on the catalase producing activity of the pathogen. NADPH is the source of ROS production, which in turn depends on the upregulation of Ca2+ production in the cytoplasm. ROS-independent induction of NETosis is regulated through toll-like receptors (TLRs). Besides capturing and eliminating pathogens, NETs also aggravate the inflammatory response and thus act as a double-edged sword. Currently, there are growing reports of NETosis induction during bacterial and fungal ocular infections leading to different pathologies, but there is no direct report suggesting its role during herpes simplex virus (HSV) infection. There are innumerable independent reports showing that the major effectors of NETosis are also directly affected by HSV infection, and thus, there is a strong possibility that HSV interacts with these facilitators that can either result in virally mediated modulation of NETosis or NETosis-mediated suppression of ocular HSV infection. This review focuses on the mechanism of NETs formation during different ocular pathologies, with its prime focus on highlighting their potential implications during HSV ocular infections and acting as prospective targets for the treatment of ocular diseases.
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Affiliation(s)
- Divya Kapoor
- Department of Ophthalmology and Visual Sciences, College of Medicine, University of Illinois at Chicago, 1905 W. Taylor St., Chicago, IL 60612, USA
- Department of Microbiology and Immunology, College of Medicine, University of Illinois at Chicago, 835 S. Wolcott, Chicago, IL 60612, USA
| | - Deepak Shukla
- Department of Ophthalmology and Visual Sciences, College of Medicine, University of Illinois at Chicago, 1905 W. Taylor St., Chicago, IL 60612, USA
- Department of Microbiology and Immunology, College of Medicine, University of Illinois at Chicago, 835 S. Wolcott, Chicago, IL 60612, USA
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24
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de Jesus Gonzalez-Contreras F, Zarate X. Neutrophil extracellular traps: Modulation mechanisms by pathogens. Cell Immunol 2022; 382:104640. [PMID: 36413806 DOI: 10.1016/j.cellimm.2022.104640] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 11/03/2022] [Accepted: 11/05/2022] [Indexed: 11/11/2022]
Abstract
Neutrophils, as innate effector cells, play an essential role in the containment and elimination of pathogens. Among the main neutrophil mechanisms use for these processes is the release of neutrophil extracellular traps (NETs), which consist of decondensed DNA decorated with various cytoplasmic proteins. NETs' principal role is the trapping and elimination of infectious agents; therefore, the formation of NETs is regulated by bacteria, fungi, parasites, and viruses through different mechanisms: the presence of virulence factors (adhered or secreted), microbial load, size of the microorganism, and even due to other immune cells activation (mainly platelets). This review summarizes the significant aspects that contribute to NETs modulation by pathogens and their components, and the effect NETs have on these pathogens as a cellular defense mechanism.
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Affiliation(s)
| | - Xristo Zarate
- Facultad de Ciencias Quimicas, Universidad Autonoma de Nuevo Leon, Av. Universidad s/n, San Nicolas de los Garza 66455, NL, Mexico
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25
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Ríos-López AL, Hernández-Bello R, González GM, Sánchez-González A. Trichinella spiralis excretory-secretory antigens selectively inhibit the release of extracellular traps from neutrophils without affecting their additional antimicrobial functions. Cell Immunol 2022; 382:104630. [PMID: 36270066 DOI: 10.1016/j.cellimm.2022.104630] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 09/26/2022] [Accepted: 10/07/2022] [Indexed: 01/13/2023]
Abstract
Neutrophil extracellular traps (NETs) are fiber structures composed of chromatin and granular proteins that capture and eliminate microorganisms. The NETs formation is induced in response to pathogens and physiological stimuli; however, some pathogens have developed strategies to evade NETs activity. Trichinella spiralis excretory-secretory (ES) antigens are proteins that allow the establishment of the parasite in the host, facilitating penetration, migration, nutrition, and survival. In this paper we described that ES antigens inhibit NETs release, since neutrophils incubated with these antigens maintains a delobulated nucleus, without the release fibers structures indicative of NETs. We also found that other antimicrobial functions of neutrophils, such as phagocytic activity, degranulation, and ROS production, remain unchanged after incubation with ES antigens. This is relevant since it could constitute a novel strategy for the treatment of autoimmune pathologies in which the formation of NETs performs an important role.
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Affiliation(s)
- Ana L Ríos-López
- Departamento de Microbiología, Universidad Autónoma de Nuevo León, Facultad de Medicina y Hospital Universitario "Dr. José Eleuterio González", Av. Francisco I. Madero, Mitras Centro, 64460, Monterrey, Mexico
| | - Romel Hernández-Bello
- Departamento de Microbiología, Universidad Autónoma de Nuevo León, Facultad de Medicina y Hospital Universitario "Dr. José Eleuterio González", Av. Francisco I. Madero, Mitras Centro, 64460, Monterrey, Mexico
| | - Gloria M González
- Departamento de Microbiología, Universidad Autónoma de Nuevo León, Facultad de Medicina y Hospital Universitario "Dr. José Eleuterio González", Av. Francisco I. Madero, Mitras Centro, 64460, Monterrey, Mexico
| | - Alejandro Sánchez-González
- Departamento de Microbiología, Universidad Autónoma de Nuevo León, Facultad de Medicina y Hospital Universitario "Dr. José Eleuterio González", Av. Francisco I. Madero, Mitras Centro, 64460, Monterrey, Mexico.
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26
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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: 14] [Impact Index Per Article: 4.7] [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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27
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Hidalgo A, Libby P, Soehnlein O, Aramburu IV, Papayannopoulos V, Silvestre-Roig C. Neutrophil extracellular traps: from physiology to pathology. Cardiovasc Res 2022; 118:2737-2753. [PMID: 34648022 PMCID: PMC9586562 DOI: 10.1093/cvr/cvab329] [Citation(s) in RCA: 180] [Impact Index Per Article: 60.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 09/21/2021] [Accepted: 10/12/2021] [Indexed: 12/13/2022] Open
Abstract
At the frontline of the host defence response, neutrophil antimicrobial functions have adapted to combat infections and injuries of different origins and magnitude. The release of web-like DNA structures named neutrophil extracellular traps (NETs) constitutes an important mechanism by which neutrophils prevent pathogen dissemination or deal with microorganisms of a bigger size. At the same time, nuclear and granule proteins with microbicidal activity bind to these DNA structures promoting the elimination of entrapped pathogens. However, these toxic properties may produce unwanted effects in the host, when neutrophils uncontrollably release NETs upon persistent inflammation. As a consequence, NET accumulation can produce vessel occlusion, tissue damage, and prolonged inflammation associated with the progression and exacerbation of multiple pathologic conditions. This review outlines recent advances in understanding the mechanisms of NET release and functions in sterile disease. We also discuss mechanisms of physiological regulation and the importance of neutrophil heterogeneity in NET formation and composition.
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Affiliation(s)
- Andres Hidalgo
- Area of Cell and Developmental Biology, Fundación Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Melchor Fernández Almagro 3, 28029, Madrid, Spain
| | - Peter Libby
- Cardiovascular Division, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, 75 Francis Street, Boston, MA 02115, USA
| | - Oliver Soehnlein
- Institute for Experimental Pathology (ExPat), Center for Molecular Biology of Inflammation (ZMBE), University of Münster, Von-Esmarch-Straße 56, 48149, Münster, Germany
- Department of Physiology and Pharmacology (FyFa), Karolinska Institute, Solnavägen 1, 171 77, Stockholm, Sweden
| | - Iker Valle Aramburu
- Laboratory of Antimicrobial Defence, The Francis Crick Institute, London NW1 1AT, UK
| | | | - Carlos Silvestre-Roig
- Institute for Experimental Pathology (ExPat), Center for Molecular Biology of Inflammation (ZMBE), University of Münster, Von-Esmarch-Straße 56, 48149, Münster, Germany
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28
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Rudiansyah M, Jasim SA, Mohammad pour ZG, Athar SS, Jeda AS, doewes RI, Jalil AT, Bokov DO, Mustafa YF, Noroozbeygi M, Karampoor S, Mirzaei R. Coronavirus disease 2019 (COVID-19) update: From metabolic reprogramming to immunometabolism. J Med Virol 2022; 94:4611-4627. [PMID: 35689351 PMCID: PMC9350347 DOI: 10.1002/jmv.27929] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Revised: 04/22/2022] [Accepted: 06/09/2022] [Indexed: 12/15/2022]
Abstract
The field of immunometabolism investigates and describes the effects of metabolic rewiring in immune cells throughout activation and the fates of these cells. Recently, it has been appreciated that immunometabolism plays an essential role in the progression of viral infections, cancer, and autoimmune diseases. Regarding COVID-19, the aberrant immune response underlying the progression of diseases establishes two major respiratory pathologies, including acute respiratory distress syndrome (ARDS) or pneumonia-induced acute lung injury (ALI). Both innate and adaptive immunity (T cell-based) were impaired in the course of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. Current findings have deciphered that macrophages (innate immune cells) are involved in the inflammatory response seen in COVID-19. It has been demonstrated that immune system cells can change metabolic reprogramming in some conditions, including autoimmune diseases, cancer, and infectious disease, including COVID-19. The growing findings on metabolic reprogramming in COVID-19 allow an exploration of metabolites with immunomodulatory properties as future therapies to combat this hyperinflammatory response. The elucidation of the exact role and mechanism underlying this metabolic reprograming in immune cells could help apply more precise approaches to initial diagnosis, prognosis, and in-hospital therapy. This report discusses the latest findings from COVID-19 on host metabolic reprogramming and immunometabolic responses.
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Affiliation(s)
- Mohammad Rudiansyah
- Division of Nephrology & Hypertension, Department of Internal Medicine, Faculty of MedicineUniversitas Lambung Mangkurat/Ulin HospitalBanjarmasinIndonesia
| | | | | | - Sara Sohrabi Athar
- Student Research CommitteeUrmia University of Medical SciencesUrmiaIran
- Department of Human Nutrition, Faculty of MedicineUrmia University of Medical SciencesUrmiaIran
| | - Ali Salimi Jeda
- Department of Virology, School of MedicineIran University of Medical SciencesTehranIran
| | - Rumi Iqbal doewes
- Faculty of SportUniversitas Sebelas MaretKentinganSurakartaIndonesia
| | | | - D. O. Bokov
- Institute of PharmacySechenov First Moscow State Medical UniversityMoscowRussian Federation
- Laboratory of Food Chemistry, Federal Research Center of NutritionBiotechnology and Food SafetyMoscowRussian Federation
| | - Yasser Fakri Mustafa
- Department of Pharmaceutical Chemistry, College of PharmacyUniversity of MosulMosulIraq
| | - Mina Noroozbeygi
- Department of Immunology, School of MedicineIran University of Medical SciencesTehranIran
| | - Sajad Karampoor
- Department of Virology, School of MedicineIran University of Medical SciencesTehranIran
- Gastrointestinal and Liver Diseases Research CenterIran University of Medical SciencesTehranIran
| | - Rasoul Mirzaei
- Department of Microbiology, School of MedicineHamadan University of Medical SciencesHamadanIran
- Venom and Biotherapeutics Molecules Lab, Medical Biotechnology Department, Biotechnology Research CenterPasteur Institute of IranTehranIran
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29
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Huang J, Hong W, Wan M, Zheng L. Molecular mechanisms and therapeutic target of NETosis in diseases. MedComm (Beijing) 2022; 3:e162. [PMID: 36000086 PMCID: PMC9390875 DOI: 10.1002/mco2.162] [Citation(s) in RCA: 74] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 07/03/2022] [Accepted: 07/07/2022] [Indexed: 12/13/2022] Open
Abstract
Evidence shows that neutrophils can protect the host against pathogens in multiple ways, including the formation and release of neutrophil extracellular traps (NETs). NETs are web-like structures composed of fibers, DNA, histones, and various neutrophil granule proteins. NETs can capture and kill pathogens, including bacteria, viruses, fungi, and protozoa. The process of NET formation is called NETosis. According to whether they depend on nicotinamide adenine dinucleotide phosphate (NADPH), NETosis can be divided into two categories: "suicidal" NETosis and "vital" NETosis. However, NET components, including neutrophil elastase, myeloperoxidase, and cell-free DNA, cause a proinflammatory response and potentially severe diseases. Compelling evidence indicates a link between NETs and the pathogenesis of a number of diseases, including sepsis, systemic lupus erythematosus, rheumatoid arthritis, small-vessel vasculitis, inflammatory bowel disease, cancer, COVID-19, and others. Therefore, targeting the process and products of NETosis is critical for treating diseases linked with NETosis. Researchers have discovered that several NET inhibitors, such as toll-like receptor inhibitors and reactive oxygen species scavengers, can prevent uncontrolled NET development. This review summarizes the mechanism of NETosis, the receptors associated with NETosis, the pathology of NETosis-induced diseases, and NETosis-targeted therapy.
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Affiliation(s)
- Jiayu Huang
- Laboratory of Aging Research and Cancer Drug TargetState Key Laboratory of BiotherapyNational Clinical Research Center for GeriatricsWest China HospitalSichuan UniversityChengduChina
| | - Weiqi Hong
- Laboratory of Aging Research and Cancer Drug TargetState Key Laboratory of BiotherapyNational Clinical Research Center for GeriatricsWest China HospitalSichuan UniversityChengduChina
| | - Meihua Wan
- Department of Integrated Traditional Chinese and Western MedicineWest China HospitalSichuan UniversityChengduSichuanChina
| | - Limin Zheng
- Guangdong Province Key Laboratory of Pharmaceutical Functional GenesMOE Key Laboratory of Gene Function and RegulationSchool of Life SciencesSun Yat‐Sen UniversityGuangzhouChina
- State Key Laboratory of Oncology in Southern ChinaCollaborative Innovation Center for Cancer MedicineSun Yat‐Sen University Cancer CenterGuangzhouChina
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30
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Zhao J, Jin J. Neutrophil extracellular traps: New players in cancer research. Front Immunol 2022; 13:937565. [PMID: 36059520 PMCID: PMC9437524 DOI: 10.3389/fimmu.2022.937565] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Accepted: 08/02/2022] [Indexed: 11/13/2022] Open
Abstract
NETs are chromatin-derived webs extruded from neutrophils as a result of either infection or sterile stimulation using chemicals, cytokines, or microbes. In addition to the classical role that NETs play in innate immunity against infection and injuries, NETs have been implicated extensively in cancer progression, metastatic dissemination, and therapy resistance. The purpose of this review is to describe recent investigations into NETs and the roles they play in tumor biology and to explore their potential as therapeutic targets in cancer treatment.
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Affiliation(s)
- Junjie Zhao
- Department of General Surgery, Changsha Hospital Affiliated to Hunan Normal University/The Fourth Hospital of Changsha, Changsha, China
- *Correspondence: Junjie Zhao, ; Jiaqi Jin,
| | - Jiaqi Jin
- Department of Neurosurgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
- *Correspondence: Junjie Zhao, ; Jiaqi Jin,
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31
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Wienkamp AK, Erpenbeck L, Rossaint J. Platelets in the NETworks interweaving inflammation and thrombosis. Front Immunol 2022; 13:953129. [PMID: 35979369 PMCID: PMC9376363 DOI: 10.3389/fimmu.2022.953129] [Citation(s) in RCA: 53] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Accepted: 07/07/2022] [Indexed: 12/18/2022] Open
Abstract
Platelets are well characterized for their indispensable role in primary hemostasis to control hemorrhage. Research over the past years has provided a substantial body of evidence demonstrating that platelets also participate in host innate immunity. The surface expression of pattern recognition receptors, such as TLR2 and TLR4, provides platelets with the ability to sense bacterial products in their environment. Platelet α-granules contain microbicidal proteins, chemokines and growth factors, which upon release may directly engage pathogens and/or contribute to inflammatory signaling. Additionally, platelet interactions with neutrophils enhance neutrophil activation and are often crucial to induce a sufficient immune response. In particular, platelets can activate neutrophils to form neutrophil extracellular traps (NETs). This specific neutrophil effector function is characterized by neutrophils expelling chromatin fibres decorated with histones and antimicrobial proteins into the extracellular space where they serve to trap and kill pathogens. Until now, the mechanisms and signaling pathways between platelets and neutrophils inducing NET formation are still not fully characterized. NETs were also detected in thrombotic lesions in several disease backgrounds, pointing towards a role as an interface between neutrophils, platelets and thrombosis, also known as immunothrombosis. The negatively charged DNA within NETs provides a procoagulant surface, and in particular NET-derived proteins may directly activate platelets. In light of the current COVID-19 pandemic, the topic of immunothrombosis has become more relevant than ever, as a majority of COVID-19 patients display thrombi in the lung capillaries and other vascular beds. Furthermore, NETs can be found in the lung and other tissues and are associated with an increased mortality. Here, virus infiltration may lead to a cytokine storm that potently activates neutrophils and leads to massive neutrophil infiltration into the lung and NET formation. The resulting NETs presumably activate platelets and coagulation factors, further contributing to the subsequent emergence of microthrombi in pulmonary capillaries. In this review, we will discuss the interplay between platelets and NETs and the potential of this alliance to influence the course of inflammatory diseases. A better understanding of the underlying molecular mechanisms and the identification of treatment targets is of utmost importance to increase patients’ survival and improve the clinical outcome.
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Affiliation(s)
- Ann-Katrin Wienkamp
- Department of Anesthesiology, Intensive Care and Pain Medicine, University Hospital Münster, Münster, Germany
| | - Luise Erpenbeck
- Department of Dermatology, University Hospital Münster, Münster, Germany
| | - Jan Rossaint
- Department of Anesthesiology, Intensive Care and Pain Medicine, University Hospital Münster, Münster, Germany
- *Correspondence: Jan Rossaint,
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Li P, Zhang C, Wang M, Zhang X, Zhang Y, Tang K, Hu H, Jia X, Zhuang R, Jin B, Ma Y, Zhang Y. Elevation of Myeloperoxidase Correlates with Disease Severity in Patients with Hantaan Virus Infection. Viral Immunol 2022; 35:418-424. [PMID: 35675645 DOI: 10.1089/vim.2022.0007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Hantaan orthohantavirus (HTNV) can cause hemorrhagic fever with renal syndrome (HFRS) characterized by acute kidney injury and hemorrhage. Neutrophils are the most abundant innate immune cell and the body's first line of defense against pathogens. Currently, an increasing number of studies have shown that neutrophils may be a mixed blessing in terms of viral infections. However, the role of neutrophils in HFRS patients with HTNV infection has not been fully declared. In this study, we analyzed plasma levels of both myeloperoxidase (MPO) and MPO-DNA in HFRS patients, together with the clinical parameters. Neutrophil-platelet aggregates (NPAs) during the acute and convalescent phases of HFRS were also assessed. The results showed that plasma MPO-DNA levels had no change in different disease phases or severities of HFRS patients. Whereas plasma MPO significantly increased in the acute phase and critical/severe groups of HFRS patients. Furthermore, plasma MPO was positively correlated with inflammatory clinical parameters, such as white blood cell counts, neutrophil counts, and renal injury-related parameters, such as blood urea nitrogen, blood uric acid, and serum creatinine, as well as negatively correlated with and platelet counts. In addition, NPAs increased both in acute and convalescent phase in HFRS patients compared with normal controls. These results suggested that elevated plasma MPO in HFRS patients correlated with disease severity, together with the increases of NPAs in HFRS patients, which may provide new insights into potential role of neutrophils in the pathogenesis of HFRS.
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Affiliation(s)
- Pengcheng Li
- Department of Immunology, Basic Medicine School, Air Force Medical University, Xi'an, China.,Brigade of Cadet, Air Force Medical University, Xi'an, China
| | - Chunmei Zhang
- Department of Immunology, Basic Medicine School, Air Force Medical University, Xi'an, China
| | - Meng Wang
- Department of Immunology, Basic Medicine School, Air Force Medical University, Xi'an, China
| | - Xiyue Zhang
- Department of Immunology, Basic Medicine School, Air Force Medical University, Xi'an, China
| | - Yusi Zhang
- Department of Immunology, Basic Medicine School, Air Force Medical University, Xi'an, China
| | - Kang Tang
- Department of Immunology, Basic Medicine School, Air Force Medical University, Xi'an, China
| | - Haifeng Hu
- Center for Infectious Diseases, Second Affiliated Hospital of Air Force Medical University, Xi'an, China
| | - Xiaozhou Jia
- Department of Infectious Disease, Xi'an Eighth Hospital, Xi'an, China
| | - Ran Zhuang
- Department of Immunology, Basic Medicine School, Air Force Medical University, Xi'an, China
| | - Boquan Jin
- Department of Immunology, Basic Medicine School, Air Force Medical University, Xi'an, China
| | - Ying Ma
- Department of Immunology, Basic Medicine School, Air Force Medical University, Xi'an, China
| | - Yun Zhang
- Department of Immunology, Basic Medicine School, Air Force Medical University, Xi'an, China
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Zhang Q, Ling S, Hu K, Liu J, Xu JW. Role of the renin-angiotensin system in NETosis in the coronavirus disease 2019 (COVID-19). Pharmacotherapy 2022; 148:112718. [PMID: 35176710 PMCID: PMC8841219 DOI: 10.1016/j.biopha.2022.112718] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 02/08/2022] [Accepted: 02/10/2022] [Indexed: 12/20/2022]
Abstract
Myocardial infarction and stroke are the leading causes of death in the world. Numerous evidence has confirmed that hypertension promotes thrombosis and induces myocardial infarction and stroke. Recent findings reveal that neutrophil extracellular traps (NETs) are involved in the induction of myocardial infarction and stroke. Meanwhile, patients with severe COVID-19 suffer from complications such as myocardial infarction and stroke with pathological signs of NETs. Due to the extremely low amount of virus detected in the blood and remote organs (e.g., heart, brain and kidney) in a few cases, it is difficult to explain the mechanism by which the virus triggers NETosis, and there may be a different mechanism than in the lung. A large number of studies have found that the renin-angiotensin system regulates the NETosis at multiple levels in patients with COVID-19, such as endocytosis of SARS-COV-2, abnormal angiotensin II levels, neutrophil activation and procoagulant function at multiple levels, which may contribute to the formation of reticular structure and thrombosis. The treatment of angiotensin-converting enzyme inhibitors (ACEI), angiotensin II type 1 receptor blockers (ARBs) and neutrophil recruitment and active antagonists helps to regulate blood pressure and reduce the risk of net and thrombosis. The review will explore the possible role of the angiotensin system in the formation of NETs in severe COVID-19.
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Pastorek M, Dúbrava M, Celec P. On the Origin of Neutrophil Extracellular Traps in COVID-19. Front Immunol 2022; 13:821007. [PMID: 35359960 PMCID: PMC8961727 DOI: 10.3389/fimmu.2022.821007] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Accepted: 02/17/2022] [Indexed: 12/12/2022] Open
Abstract
Despite ongoing vaccination COVID-19 is a global healthcare problem because of the lack of an effective targeted therapy. In severe COVID-19 manifesting as acute respiratory distress syndrome, uncontrolled innate immune system activation results in cytokine deregulation, damage-associated molecular patterns release upon tissue damage and high occurrence of thrombotic events. These pathomechanisms are linked to neutrophil function and dysfunction, particularly increased formation of neutrophil extracellular traps (NETs). While the association of NETs and severity of COVID-19 has been shown and proved, the causes of NETs formation are unclear. The aim of this review is to summarize potential inducers of NETs formation in severe COVID-19 and to discuss potential treatment options targeting NETs formation of removal.
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Affiliation(s)
- Michal Pastorek
- Institute of Molecular Biomedicine, Faculty of Medicine, Comenius University, Bratislava, Slovakia
| | - Martin Dúbrava
- Department of Geriatric Medicine, Faculty of Medicine, Comenius University, Bratislava, Slovakia
| | - Peter Celec
- Institute of Molecular Biomedicine, Faculty of Medicine, Comenius University, Bratislava, Slovakia
- Institute of Pathophysiology, Faculty of Medicine, Comenius University, Bratislava, Slovakia
- Department of Molecular Biology, Faculty of Natural Sciences, Comenius University, Bratislava, Slovakia
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Tariq M, Kim DM. Hemorrhagic Fever with Renal Syndrome: Literature Review, Epidemiology, Clinical Picture and Pathogenesis. Infect Chemother 2022; 54:1-19. [PMID: 35384417 PMCID: PMC8987181 DOI: 10.3947/ic.2021.0148] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Accepted: 01/30/2022] [Indexed: 02/06/2023] Open
Abstract
Hantaviruses can cause two types of infections in humans: hemorrhagic fever with renal syndrome (HFRS) and hantavirus pulmonary syndrome. The old world hantaviruses, primarily Hantaan virus (HTNV), responsible for causing HFRS occurs endemically in Asia and Europe. Apodernus agraricus, a striped field mouse, is being considered as main host reservoir for HTNV. Infection in humans is typically accidental and occurs when virus-containing rodent excretions such as urine, feces, or saliva are aerosolized. The major clinical manifestations includes increased vascular permeability causing vascular leakage, acute kidney injury and coagulation abnormalities. The case fatality rate of HFRS varies around 5.0 - 10.0% depending on the causative viral agent. The direct effects of viral infection on endothelial cells, as well as the immunological response to the viral infection, have been suggested to play a key role in the pathogenesis of HFRS. This article summarizes the current knowledge of HFRS epidemiology in Korea and around the globe, etiology, host transmission, clinical presentation, pathogenesis, diagnostic techniques, treatment, and prevention.
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Affiliation(s)
- Misbah Tariq
- Department of Internal Medicine, Chosun University College of Medicine, Gwangju, Korea.,Dow University of Health Sciences, Karachi, Pakistan
| | - Dong-Min Kim
- Department of Internal Medicine, Chosun University College of Medicine, Gwangju, Korea.
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Ahmadi E, Bagherpour Z, Zarei E, Omidkhoda A. Pathological effects of SARS-CoV-2 on hematological and immunological cells: Alterations in count, morphology, and function. Pathol Res Pract 2022; 231:153782. [PMID: 35121363 PMCID: PMC8800420 DOI: 10.1016/j.prp.2022.153782] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Revised: 01/22/2022] [Accepted: 01/25/2022] [Indexed: 01/08/2023]
Abstract
The novel Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2), the causative agent of COVID-19 outbreak, spread rapidly and infected more than 140 million people with more than three million victims worldwide. The SARS-CoV-2 causes destructive changes in the immunological and hematological system of the host. These alterations appear to play a critical role in disease pathology and the emerging of clinical manifestations. In this review, we aimed to discuss the effect of COVID-19 on the count, function and morphology of immune and blood cells and the role of these changes in the pathophysiology of the disease. Knowledge of these changes may help with better management and treatment of COVID-19 patients.
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Affiliation(s)
- Ehsan Ahmadi
- Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
| | - Zahra Bagherpour
- Department of Hematology and Blood Banking, School of Allied Medical Sciences, Tehran University of Medical Sciences, Tehran, Iran.
| | - Elmira Zarei
- Department of Hematology and Blood Banking, School of Allied Medical Sciences, Tehran University of Medical Sciences, Tehran, Iran.
| | - Azadeh Omidkhoda
- Department of Hematology and Blood Banking, School of Allied Medical Sciences, Tehran University of Medical Sciences, Tehran, Iran.
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Laminin Triggers Neutrophil Extracellular Traps (NETs) and Modulates NET Release Induced by Leishmania amazonensis. Biomedicines 2022; 10:biomedicines10030521. [PMID: 35327324 PMCID: PMC8945559 DOI: 10.3390/biomedicines10030521] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 02/16/2022] [Accepted: 02/18/2022] [Indexed: 12/10/2022] Open
Abstract
Neutrophils are recruited from the blood and transmigrate through the endothelium to reach tissues, where they are prone to respond through different mechanisms, including the release of neutrophil extracellular traps (NETs). These responses occur in close contact with proteins from the basement membrane and extracellular matrix, where laminins are abundant. Thus, we investigated the interactions between neutrophils and different laminin (LM) isoforms and analyzed the induction of NETs. We showed that neutrophils stimulated with LM isoforms 111, 211, 332, 411, 421, and 511 released NETs. The same occurred when neutrophils interacted with polymerized LMs 111, 411, and 511. LM-induced NETs were partially inhibited by pretreatment of neutrophils with an anti-α6 integrin antibody. Furthermore, NETs triggered by laminins were dependent on elastase and peptidylarginine deiminase (PAD)-4, enzymes that participate in chromatin decondensation. We also found that LMs 411 and LM 511 potentiated the NET release promoted by promastigotes of the protozoan parasite Leishmania, and that NETs stimulated by LMs alone display leishmanicidal activity. The ability of LM to induce NET release may have potential implications for the course of inflammation or infection.
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38
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Zhang X, Wang T, Chen Z, Wang H, Yin Y, Wang L, Wang Y, Xu B, Xu W. HMGB1-Promoted Neutrophil Extracellular Traps Contribute to Cardiac Diastolic Dysfunction in Mice. J Am Heart Assoc 2022; 11:e023800. [PMID: 35156391 PMCID: PMC9245819 DOI: 10.1161/jaha.121.023800] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Accepted: 01/03/2022] [Indexed: 12/19/2022]
Abstract
Background Heart failure with preserved ejection fraction (HFpEF) remains an increasing public health problem with substantial morbidity and mortality but with few effective treatments. A novel inflammatory mechanism has been proposed, but the inflammatory signals promoting the development of HFpEF remain greatly unknown. Methods and Results Serum of patients with HFpEF was collected for measurement of circulating neutrophils and markers of neutrophil extracellular traps (NETs). To induce HFpEF phenotype, male C57BL/6 mice underwent uninephrectomy, received a continuous infusion of d-aldosterone for 4 weeks, and maintained on 1.0% sodium chloride drinking water. Heart tissues were harvested, immune cell types determined by flow cytometry, NETs formation by immunofluorescence, and western blotting. Differentiated neutrophils were cultured to investigate the effect of HMGB1 (high mobility group protein B1) and SGLT2 (sodium-glucose cotransporter-2) inhibitor on NETs formation in vitro. Circulating neutrophils and NETs markers are elevated in patients with HFpEF, as are cardiac neutrophils and NETs formation in HFpEF mice. NETs inhibition with deoxyribonuclease 1 in experimental HFpEF mice reduces heart macrophages infiltration and inflammation and ameliorates cardiac fibrosis and diastolic function. Damage-associated molecular pattern HMGB1 expression is elevated in cardiac tissue of HFpEF mice, and HMGB1 inhibition reduces heart neutrophil infiltration and NETs formation and ameliorates diastolic function. Lastly, SGLT2 inhibitor empagliflozin down-regulates heart HMGB1 expression, attenuates NETs formation and cardiac fibrosis, and improves diastolic function in HFpEF mice. Conclusions NETs contribute to the pathogenesis of HFpEF, which can be ameliorated by HMGB1 inhibition and SGLT2 inhibitors. Thus, HMGB1 and NETs may represent novel therapeutic targets for the treatment of HFpEF.
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Affiliation(s)
- Xin‐Lin Zhang
- Department of CardiologyAffiliated Drum Tower HospitalNanjing University School of MedicineNanjingChina
| | - Ting‐Yu Wang
- Central for Translational MedicineNanjing University School of MedicineNanjingChina
- State Key Laboratory of Analytical Chemistry for Life Science & Jiangsu Key Laboratory of Molecular MedicineNanjing University School of MedicineNanjingChina
| | - Zheng Chen
- Department of CardiologyAffiliated Drum Tower HospitalNanjing University School of MedicineNanjingChina
| | - Hong‐Wei Wang
- Central for Translational MedicineNanjing University School of MedicineNanjingChina
- State Key Laboratory of Analytical Chemistry for Life Science & Jiangsu Key Laboratory of Molecular MedicineNanjing University School of MedicineNanjingChina
| | - Yong Yin
- Department of CardiologyAffiliated Drum Tower HospitalNanjing University School of MedicineNanjingChina
| | - Lian Wang
- Department of CardiologyAffiliated Drum Tower HospitalNanjing University School of MedicineNanjingChina
| | - Yong Wang
- Central for Translational MedicineNanjing University School of MedicineNanjingChina
- State Key Laboratory of Analytical Chemistry for Life Science & Jiangsu Key Laboratory of Molecular MedicineNanjing University School of MedicineNanjingChina
| | - Biao Xu
- Department of CardiologyAffiliated Drum Tower HospitalNanjing University School of MedicineNanjingChina
| | - Wei Xu
- Department of CardiologyAffiliated Drum Tower HospitalNanjing University School of MedicineNanjingChina
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Poto R, Cristinziano L, Modestino L, de Paulis A, Marone G, Loffredo S, Galdiero MR, Varricchi G. Neutrophil Extracellular Traps, Angiogenesis and Cancer. Biomedicines 2022; 10:biomedicines10020431. [PMID: 35203640 PMCID: PMC8962440 DOI: 10.3390/biomedicines10020431] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 02/07/2022] [Accepted: 02/09/2022] [Indexed: 12/07/2022] Open
Abstract
Human neutrophils, the most abundant circulating leukocytes, are fundamental components of the host response against different pathogens. Until a few years ago, neutrophils received limited attention in cancer immunology. Recently, it was discovered that both circulating, and tumor-associated, neutrophils possess functional plasticity when exposed to various inflammatory stimuli and in the tumor microenvironment. Neutrophils and their mediators can exert several pro-tumor activities in cancer and promote metastasis through different mechanisms. Angiogenesis plays a pivotal role in inflammation and tumor growth. Activated human neutrophils release several angiogenic factors [vascular endothelial growth factor-A (VEGF-A), angiopoietin-1 (ANGPT1), CXCL8, hepatocyte growth factor (HGF), and metalloproteinase 9 (MMP-9)] and form neutrophil extracellular traps (NETs). NETs promote tumor growth and metastasis formation through several mechanisms: they can awake dormant cancer cells, capture circulating tumor cells, coat and shield cancer cells, thus preventing CD8+- and natural killer (NK) cell-mediated cytotoxicity. ANGPTs released by endothelial and periendothelial mural cells induce platelet-activating factor (PAF) synthesis and neutrophil adhesion to endothelial cells. NETs can directly exert several proangiogenic activities in human endothelial cells and NETs induced by ANGPTs and PAF increase several aspects of angiogenesis in vitro and in vivo. A better understanding of the pathophysiological functions of NETs in cancer and angiogenesis could be of importance in the early diagnosis, prevention and treatment of tumors.
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Affiliation(s)
- Remo Poto
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy; (R.P.); (L.C.); (L.M.); (A.d.P.); (G.M.); (S.L.); (M.R.G.)
- Center for Basic and Clinical Immunology Research (CISI), University of Naples Federico II, 80131 Naples, Italy
- World Allergy Organization (WAO) Center of Excellence, 80131 Naples, Italy
| | - Leonardo Cristinziano
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy; (R.P.); (L.C.); (L.M.); (A.d.P.); (G.M.); (S.L.); (M.R.G.)
- Center for Basic and Clinical Immunology Research (CISI), University of Naples Federico II, 80131 Naples, Italy
- World Allergy Organization (WAO) Center of Excellence, 80131 Naples, Italy
| | - Luca Modestino
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy; (R.P.); (L.C.); (L.M.); (A.d.P.); (G.M.); (S.L.); (M.R.G.)
- Center for Basic and Clinical Immunology Research (CISI), University of Naples Federico II, 80131 Naples, Italy
- World Allergy Organization (WAO) Center of Excellence, 80131 Naples, Italy
| | - Amato de Paulis
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy; (R.P.); (L.C.); (L.M.); (A.d.P.); (G.M.); (S.L.); (M.R.G.)
- Center for Basic and Clinical Immunology Research (CISI), University of Naples Federico II, 80131 Naples, Italy
- World Allergy Organization (WAO) Center of Excellence, 80131 Naples, Italy
| | - Gianni Marone
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy; (R.P.); (L.C.); (L.M.); (A.d.P.); (G.M.); (S.L.); (M.R.G.)
- Center for Basic and Clinical Immunology Research (CISI), University of Naples Federico II, 80131 Naples, Italy
- World Allergy Organization (WAO) Center of Excellence, 80131 Naples, Italy
- Institute of Experimental Endocrinology and Oncology (IEOS), National Research Council, 80131 Naples, Italy
| | - Stefania Loffredo
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy; (R.P.); (L.C.); (L.M.); (A.d.P.); (G.M.); (S.L.); (M.R.G.)
- Center for Basic and Clinical Immunology Research (CISI), University of Naples Federico II, 80131 Naples, Italy
- World Allergy Organization (WAO) Center of Excellence, 80131 Naples, Italy
- Institute of Experimental Endocrinology and Oncology (IEOS), National Research Council, 80131 Naples, Italy
| | - Maria Rosaria Galdiero
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy; (R.P.); (L.C.); (L.M.); (A.d.P.); (G.M.); (S.L.); (M.R.G.)
- Center for Basic and Clinical Immunology Research (CISI), University of Naples Federico II, 80131 Naples, Italy
- World Allergy Organization (WAO) Center of Excellence, 80131 Naples, Italy
- Institute of Experimental Endocrinology and Oncology (IEOS), National Research Council, 80131 Naples, Italy
| | - Gilda Varricchi
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy; (R.P.); (L.C.); (L.M.); (A.d.P.); (G.M.); (S.L.); (M.R.G.)
- Center for Basic and Clinical Immunology Research (CISI), University of Naples Federico II, 80131 Naples, Italy
- World Allergy Organization (WAO) Center of Excellence, 80131 Naples, Italy
- Institute of Experimental Endocrinology and Oncology (IEOS), National Research Council, 80131 Naples, Italy
- Correspondence:
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Al-Kuraishy HM, Al-Gareeb AI, Al-Hussaniy HA, Al-Harcan NAH, Alexiou A, Batiha GES. Neutrophil Extracellular Traps (NETs) and Covid-19: A new frontiers for therapeutic modality. Int Immunopharmacol 2022; 104:108516. [PMID: 35032828 PMCID: PMC8733219 DOI: 10.1016/j.intimp.2021.108516] [Citation(s) in RCA: 127] [Impact Index Per Article: 42.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 12/30/2021] [Accepted: 12/31/2021] [Indexed: 01/08/2023]
Abstract
Coronavirus disease 2019 (Covid-19) is a worldwide infectious disease caused by severe acute respiratory coronavirus 2 (SARS-CoV-2). In severe SARS-CoV-2 infection, there is severe inflammatory reactions due to neutrophil recruitments and infiltration in the different organs with the formation of neutrophil extracellular traps (NETs), which involved various complications of SARS-CoV-2 infection. Therefore, the objective of the present review was to explore the potential role of NETs in the pathogenesis of SARS-CoV-2 infection and to identify the targeting drugs against NETs in Covid-19 patients. Different enzyme types are involved in the formation of NETs, such as neutrophil elastase (NE), which degrades nuclear protein and release histones, peptidyl arginine deiminase type 4 (PADA4), which releases chromosomal DNA and gasdermin D, which creates pores in the NTs cell membrane that facilitating expulsion of NT contents. Despite of the beneficial effects of NETs in controlling of invading pathogens, sustained formations of NETs during respiratory viral infections are associated with collateral tissue injury. Excessive development of NETs in SARS-CoV-2 infection is linked with the development of acute lung injury (ALI) and acute respiratory distress syndrome (ARDS) due to creation of the NETs-IL-1β loop. Also, aberrant NTs activation alone or through NETs formation may augment SARS-CoV-2-induced cytokine storm (CS) and macrophage activation syndrome (MAS) in patients with severe Covid-19. Furthermore, NETs formation in SARS-CoV-2 infection is associated with immuno-thrombosis and the development of ALI/ARDS. Therefore, anti-NETs therapy of natural or synthetic sources may mitigate SARS-CoV-2 infection-induced exaggerated immune response, hyperinflammation, immuno-thrombosis, and other complications.
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Affiliation(s)
- Hayder M Al-Kuraishy
- Department of Clinical Pharmacology and Medicine, College of Medicine, Al-Mustansiriyiah University, Baghdad, Iraq
| | - Ali I Al-Gareeb
- Department of Clinical Pharmacology and Medicine, College of Medicine, Al-Mustansiriyiah University, Baghdad, Iraq
| | | | - Nasser A Hadi Al-Harcan
- Department of Clinical Pharmacology and Medicine, College of Medicine, Al-Rasheed University College, Bagdad, Iraq
| | - Athanasios Alexiou
- Department of Science and Engineering, Novel Global Community Educational Foundation, Hebersham, Australia; AFNP Med Austria, Wien, Austria.
| | - Gaber El-Saber Batiha
- Department of Pharmacology and Therapeutics, Faculty of Veterinary Medicine, Damanhour University, Damanhour 22511, Al Beheira, Egypt.
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Joshi MB, Kamath A, Nair AS, Yedehali Thimmappa P, Sriranjini SJ, Gangadharan GG, Satyamoorthy K. Modulation of neutrophil (dys)function by Ayurvedic herbs and its potential influence on SARS-CoV-2 infection. J Ayurveda Integr Med 2022; 13:100424. [PMID: 33746457 PMCID: PMC7962552 DOI: 10.1016/j.jaim.2021.03.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 12/08/2020] [Accepted: 03/09/2021] [Indexed: 12/15/2022] Open
Abstract
For centuries, traditional medicines of Ayurveda have been in use to manage infectious and non-infectious diseases. The key embodiment of traditional medicines is the holistic system of approach in the management of human diseases. SARS-CoV-2 (COVID-19) infection is an ongoing pandemic, which has emerged as the major health threat worldwide and is causing significant stress, morbidity and mortality. Studies from the individuals with SARS-CoV-2 infection have shown significant immune dysregulation and cytokine overproduction. Neutrophilia and neutrophil to lymphocyte ratio has been correlated to poor outcome due to the disease. Neutrophils, component of innate immune system, upon stimulation expel DNA along with histones and granular proteins to form extracellular traps (NETs). Although, these DNA lattices possess beneficial activity in trapping and eliminating pathogens, NETs may also cause adverse effects by inducing immunothrombosis and tissue damage in diseases including Type 2 Diabetes and atherosclerosis. Tissues of SARS-CoV-2 infected subjects showed microthrombi with neutrophil-platelet infiltration and serum showed elevated NETs components, suggesting large involvement and uncontrolled activation of neutrophils leading to pathogenesis and associated organ damage. Hence, traditional Ayurvedic herbs exhibiting anti-inflammatory and antioxidant properties may act in a manner that might prove beneficial in targeting over-functioning of neutrophils and there by promoting normal immune homeostasis. In the present manuscript, we have reviewed and discussed pathological importance of NETs formation in SARS-CoV-2 infections and discuss how various Ayurvedic herbs can be explored to modulate neutrophil function and inhibit NETs formation in the context of a) anti-microbial activity to enhance neutrophil function, b) immunomodulatory effects to maintain neutrophil mediated immune homeostasis and c) to inhibit NETs mediated thrombosis.
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Affiliation(s)
- Manjunath B Joshi
- Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, 576104, India
| | - Archana Kamath
- Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, 576104, India
| | - Aswathy S Nair
- Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, 576104, India
| | | | - Sitaram J Sriranjini
- Ramaiah Indic Speciality Ayurveda-Restoration Hospital, MSR Nagar, Mathikere, Bengaluru, 560 054, India
| | - G G Gangadharan
- Ramaiah Indic Speciality Ayurveda-Restoration Hospital, MSR Nagar, Mathikere, Bengaluru, 560 054, India
| | - Kapaettu Satyamoorthy
- Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, 576104, India.
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Chen T, Li Y, Sun R, Hu H, Liu Y, Herrmann M, Zhao Y, Muñoz LE. Receptor-Mediated NETosis on Neutrophils. Front Immunol 2021; 12:775267. [PMID: 34804066 PMCID: PMC8600110 DOI: 10.3389/fimmu.2021.775267] [Citation(s) in RCA: 88] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Accepted: 10/19/2021] [Indexed: 02/05/2023] Open
Abstract
Neutrophil extracellular traps (NETs), a web-like structures containing chromatin, have a significant role in assisting the capture and killing of microorganisms by neutrophils during infection. The specific engagement of cell-surface receptors by extracellular signaling molecules activates diverse intracellular signaling cascades and regulates neutrophil effector functions, including phagocytosis, reactive oxygen species release, degranulation, and NET formation. However, overproduction of NETs is closely related to the occurrence of inflammation, autoimmune disorders, non-canonical thrombosis and tumor metastasis. Therefore, it is necessary to understand neutrophil activation signals and the subsequent formation of NETs, as well as the related immune regulation. In this review, we provide an overview of the immunoreceptor-mediated regulation of NETosis. The pathways involved in the release of NETs during infection or stimulation by noninfectious substances are discussed in detail. The mechanisms by which neutrophils undergo NETosis help to refine our views on the roles of NETs in immune protection and autoimmune diseases, providing a theoretical basis for research on the immune regulation of NETs.
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Affiliation(s)
- Tao Chen
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu, China.,Rare Diseases Center, West China Hospital, Sichuan University, Chengdu, China.,Institute of Immunology and Inflammation, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
| | - Yanhong Li
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu, China.,Rare Diseases Center, West China Hospital, Sichuan University, Chengdu, China.,Institute of Immunology and Inflammation, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
| | - Rui Sun
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu, China.,Rare Diseases Center, West China Hospital, Sichuan University, Chengdu, China.,Institute of Immunology and Inflammation, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
| | - Huifang Hu
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu, China.,Rare Diseases Center, West China Hospital, Sichuan University, Chengdu, China.,Institute of Immunology and Inflammation, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
| | - Yi Liu
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu, China.,Rare Diseases Center, West China Hospital, Sichuan University, Chengdu, China.,Institute of Immunology and Inflammation, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
| | - Martin Herrmann
- Department of Internal Medicine 3 - Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Yi Zhao
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu, China.,Rare Diseases Center, West China Hospital, Sichuan University, Chengdu, China.,Institute of Immunology and Inflammation, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
| | - Luis E Muñoz
- Department of Internal Medicine 3 - Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany
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43
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Tietäväinen J, Laine O, Mäkelä S, Huhtala H, Pörsti I, Vaheri A, Mustonen J. ABO and Rhesus Blood Groups in Acute Puumala Hantavirus Infection. Viruses 2021; 13:v13112271. [PMID: 34835077 PMCID: PMC8621274 DOI: 10.3390/v13112271] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 11/08/2021] [Accepted: 11/10/2021] [Indexed: 12/01/2022] Open
Abstract
Puumala hantavirus (PUUV) causes hemorrhagic fever with renal syndrome. We aimed to evaluate whether ABO and rhesus blood groups associate with the susceptibility or the severity of PUUV infection. We analyzed blood groups in 289 adult patients treated in Tampere University hospital due to PUUV infection during the years 1982–2017. Patients’ blood group distribution was compared to that of healthy, voluntary blood donors living in the Tampere University Hospital responsibility area (n = 21,833). The severity of PUUV infection, as judged by the severity of acute kidney injury (AKI), thrombocytopenia, inflammation, capillary leakage, and the length of hospital care, was analyzed across the groups. The ABO and rhesus blood group distributions did not differ between the patients and blood donors. Patients with non-O blood groups had lower systolic blood pressure compared to patients with blood group O, but there was no difference in other markers of capillary leakage or in the severity of AKI. Minor deviations in the number of platelets and leukocytes were detected between the O and non-O blood groups. To conclude, patients with blood group O may be less susceptible to hypotension, but otherwise blood groups have no major influences on disease susceptibility or severity during acute PUUV infection.
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Affiliation(s)
- Johanna Tietäväinen
- Faculty of Medicine and Health Technology, Tampere University, 33520 Tampere, Finland; (O.L.); (S.M.); (I.P.); (J.M.)
- Department of Internal Medicine, Tampere University Hospital, 33520 Tampere, Finland
- Correspondence:
| | - Outi Laine
- Faculty of Medicine and Health Technology, Tampere University, 33520 Tampere, Finland; (O.L.); (S.M.); (I.P.); (J.M.)
- Department of Internal Medicine, Tampere University Hospital, 33520 Tampere, Finland
| | - Satu Mäkelä
- Faculty of Medicine and Health Technology, Tampere University, 33520 Tampere, Finland; (O.L.); (S.M.); (I.P.); (J.M.)
- Department of Internal Medicine, Tampere University Hospital, 33520 Tampere, Finland
| | - Heini Huhtala
- Faculty of Social Sciences, Tampere University, 33250 Tampere, Finland;
| | - Ilkka Pörsti
- Faculty of Medicine and Health Technology, Tampere University, 33520 Tampere, Finland; (O.L.); (S.M.); (I.P.); (J.M.)
- Department of Internal Medicine, Tampere University Hospital, 33520 Tampere, Finland
| | - Antti Vaheri
- Department of Virology, Medicum, University of Helsinki, 00290 Helsinki, Finland;
| | - Jukka Mustonen
- Faculty of Medicine and Health Technology, Tampere University, 33520 Tampere, Finland; (O.L.); (S.M.); (I.P.); (J.M.)
- Department of Internal Medicine, Tampere University Hospital, 33520 Tampere, Finland
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Kim SJ, Carestia A, McDonald B, Zucoloto AZ, Grosjean H, Davis RP, Turk M, Naumenko V, Antoniak S, Mackman N, Abdul-Cader MS, Abdul-Careem MF, Hollenberg MD, Jenne CN. Platelet-Mediated NET Release Amplifies Coagulopathy and Drives Lung Pathology During Severe Influenza Infection. Front Immunol 2021; 12:772859. [PMID: 34858432 PMCID: PMC8632260 DOI: 10.3389/fimmu.2021.772859] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Accepted: 10/26/2021] [Indexed: 01/30/2023] Open
Abstract
The influenza A virus (IAV) causes a respiratory tract infection with approximately 10% of the population infected by the virus each year. Severe IAV infection is characterized by excessive inflammation and tissue pathology in the lungs. Platelet and neutrophil recruitment to the lung are involved in the pathogenesis of IAV, but the specific mechanisms involved have not been clarified. Using confocal intravital microscopy in a mouse model of IAV infection, we observed profound neutrophil recruitment, platelet aggregation, neutrophil extracellular trap (NET) production and thrombin activation within the lung microvasculature in vivo. Importantly, deficiency or antagonism of the protease-activated receptor 4 (PAR4) reduced platelet aggregation, NET production, and neutrophil recruitment. Critically, inhibition of thrombin or PAR4 protected mice from virus-induced lung tissue damage and edema. Together, these data imply thrombin-stimulated platelets play a critical role in the activation/recruitment of neutrophils, NET release and directly contribute to IAV pathogenesis in the lung.
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MESH Headings
- Animals
- Blood Coagulation Disorders/immunology
- Blood Coagulation Disorders/metabolism
- Blood Coagulation Disorders/virology
- Blood Platelets/immunology
- Blood Platelets/metabolism
- Blood Platelets/virology
- Disease Models, Animal
- Extracellular Traps/immunology
- Extracellular Traps/metabolism
- Extracellular Traps/virology
- Female
- Humans
- Influenza A Virus, H1N1 Subtype/immunology
- Influenza A Virus, H1N1 Subtype/physiology
- Influenza, Human/immunology
- Influenza, Human/metabolism
- Influenza, Human/virology
- Lung/immunology
- Lung/metabolism
- Lung/virology
- Mice, Inbred C57BL
- Mice, Knockout
- Mice, Transgenic
- Microscopy, Confocal
- Neutrophil Infiltration/immunology
- Neutrophils/immunology
- Neutrophils/metabolism
- Neutrophils/virology
- Orthomyxoviridae Infections/immunology
- Orthomyxoviridae Infections/metabolism
- Orthomyxoviridae Infections/virology
- Platelet Aggregation/immunology
- Mice
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Affiliation(s)
- Seok-Joo Kim
- Department of Microbiology, Immunology, and Infectious Diseases, University of Calgary, Calgary, AB, Canada
| | - Agostina Carestia
- Department of Microbiology, Immunology, and Infectious Diseases, University of Calgary, Calgary, AB, Canada
| | - Braedon McDonald
- Department of Critical Care Medicine, University of Calgary, Calgary, AB, Canada
| | - Amanda Z. Zucoloto
- Department of Microbiology, Immunology, and Infectious Diseases, University of Calgary, Calgary, AB, Canada
| | - Heidi Grosjean
- Department of Microbiology, Immunology, and Infectious Diseases, University of Calgary, Calgary, AB, Canada
| | - Rachelle P. Davis
- Department of Microbiology, Immunology, and Infectious Diseases, University of Calgary, Calgary, AB, Canada
| | - Madison Turk
- Department of Microbiology, Immunology, and Infectious Diseases, University of Calgary, Calgary, AB, Canada
| | - Victor Naumenko
- Department of Microbiology, Immunology, and Infectious Diseases, University of Calgary, Calgary, AB, Canada
| | - Silvio Antoniak
- UNC Blood Research Center, Department of Pathology and Laboratory Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Nigel Mackman
- UNC Blood Research Center, Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | | | | | - Morley D. Hollenberg
- Department of Physiology and Pharmacology, University of Calgary, Calgary, AB, Canada
| | - Craig N. Jenne
- Department of Microbiology, Immunology, and Infectious Diseases, University of Calgary, Calgary, AB, Canada
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45
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Ma Y, Zhang Y, Zhu L. Role of neutrophils in acute viral infection. IMMUNITY INFLAMMATION AND DISEASE 2021; 9:1186-1196. [PMID: 34472718 PMCID: PMC8589350 DOI: 10.1002/iid3.500] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Revised: 06/23/2021] [Accepted: 07/22/2021] [Indexed: 12/13/2022]
Abstract
Neutrophils play multiple roles in acute viral infections. They restrict viral replication and diffusion through phagocytosis, degranulation, respiratory burst, secretion of cytokines, and the release of neutrophil extracellular traps, as well as, activate the adaptive immune response. However, the overactivation of neutrophils may cause tissue damage and lead to poor outcomes. Additionally, some characteristics and functions of neutrophils, such as cell number, lifespan, and antiviral capability, can be influenced while eliminating viruses. This review provides a general description of the protective and pathological roles of neutrophils in acute viral infection.
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Affiliation(s)
- Yuan Ma
- Institute of Infectious Diseases, Peking University Ditan Teaching Hospital, Beijing, China
| | - Yue Zhang
- Beijing Key Laboratory of Emerging Infectious Diseases, Institute of Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Liuluan Zhu
- Institute of Infectious Diseases, Peking University Ditan Teaching Hospital, Beijing, China.,Beijing Key Laboratory of Emerging Infectious Diseases, Institute of Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing, China
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46
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Hägele S, Nusshag C, Müller A, Baumann A, Zeier M, Krautkrämer E. Cells of the human respiratory tract support the replication of pathogenic Old World orthohantavirus Puumala. Virol J 2021; 18:169. [PMID: 34404450 PMCID: PMC8369447 DOI: 10.1186/s12985-021-01636-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Accepted: 08/09/2021] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Transmission of all known pathogenic orthohantaviruses (family Hantaviridae) usually occurs via inhalation of aerosols contaminated with viral particles derived from infected rodents and organ manifestation of infections is characterized by lung and kidney involvement. Orthohantaviruses found in Eurasia cause hemorrhagic fever with renal syndrome (HFRS) and New World orthohantaviruses cause hantavirus cardiopulmonary syndrome (HCPS). However, cases of infection with Old World orthohantaviruses with severe pulmonary manifestations have also been observed. Therefore, human airway cells may represent initial targets for orthohantavirus infection and may also play a role in the pathogenesis of infections with Eurasian orthohantaviruses. METHODS We analyzed the permissiveness of primary endothelial cells of the human pulmonary microvasculature and of primary human epithelial cells derived from bronchi, bronchioles and alveoli for Old World orthohantavirus Puumala virus (PUUV) in vitro. In addition, we examined the expression of orthohantaviral receptors in these cell types. To minimize donor-specific effects, cells from two different donors were tested for each cell type. RESULTS Productive infection with PUUV was observed for endothelial cells of the microvasculature and for the three tested epithelial cell types derived from different sites of the respiratory tract. Interestingly, infection and particle release were also detected in bronchial and bronchiolar epithelial cells although expression of the orthohantaviral receptor integrin β3 was not detectable in these cell types. In addition, replication kinetics and viral release demonstrate enormous donor-specific variations. CONCLUSIONS The human respiratory epithelium is among the first targets of orthohantaviral infection and may contribute to virus replication, dissemination and pathogenesis of HFRS-causing orthohantaviruses. Differences in initial pulmonary infection due to donor-specific factors may play a role in the observed broad variance of severity and symptoms of orthohantavirus disease in patients. The absence of detectable levels of integrin αVβ3 surface expression on bronchial and small airway epithelial cells indicates an alternate mode of orthohantaviral entry in these cells that is independent from integrin β3.
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Affiliation(s)
- Stefan Hägele
- Department of Nephrology, University of Heidelberg, Im Neuenheimer Feld 162, 69120, Heidelberg, Germany
| | - Christian Nusshag
- Department of Nephrology, University of Heidelberg, Im Neuenheimer Feld 162, 69120, Heidelberg, Germany
| | - Alexander Müller
- Department of Nephrology, University of Heidelberg, Im Neuenheimer Feld 162, 69120, Heidelberg, Germany
| | - Alexandra Baumann
- Department of Nephrology, University of Heidelberg, Im Neuenheimer Feld 162, 69120, Heidelberg, Germany
| | - Martin Zeier
- Department of Nephrology, University of Heidelberg, Im Neuenheimer Feld 162, 69120, Heidelberg, Germany
| | - Ellen Krautkrämer
- Department of Nephrology, University of Heidelberg, Im Neuenheimer Feld 162, 69120, Heidelberg, Germany.
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47
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Hantavirus infection-induced B cell activation elevates free light chains levels in circulation. PLoS Pathog 2021; 17:e1009843. [PMID: 34379707 PMCID: PMC8382192 DOI: 10.1371/journal.ppat.1009843] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 08/23/2021] [Accepted: 07/27/2021] [Indexed: 12/17/2022] Open
Abstract
In humans, orthohantaviruses can cause hemorrhagic fever with renal syndrome (HFRS) or hantavirus pulmonary syndrome (HPS). An earlier study reported that acute Andes virus HPS caused a massive and transient elevation in the number of circulating plasmablasts with specificity towards both viral and host antigens suggestive of polyclonal B cell activation. Immunoglobulins (Igs), produced by different B cell populations, comprise heavy and light chains; however, a certain amount of free light chains (FLCs) is constantly present in serum. Upregulation of FLCs, especially clonal species, associates with renal pathogenesis by fibril or deposit formations affecting the glomeruli, induction of epithelial cell disorders, or cast formation in the tubular network. We report that acute orthohantavirus infection increases the level of Ig FLCs in serum of both HFRS and HPS patients, and that the increase correlates with the severity of acute kidney injury in HFRS. The fact that the kappa to lambda FLC ratio in the sera of HFRS and HPS patients remained within the normal range suggests polyclonal B cell activation rather than proliferation of a single B cell clone. HFRS patients demonstrated increased urinary excretion of FLCs, and we found plasma cell infiltration in archival patient kidney biopsies that we speculate to contribute to the observed FLC excreta. Analysis of hospitalized HFRS patients’ peripheral blood mononuclear cells showed elevated plasmablast levels, a fraction of which stained positive for Puumala virus antigen. Furthermore, B cells isolated from healthy donors were susceptible to Puumala virus in vitro, and the virus infection induced increased production of Igs and FLCs. The findings propose that hantaviruses directly activate B cells, and that the ensuing intense production of polyclonal Igs and FLCs may contribute to acute hantavirus infection-associated pathological findings. Orthohantaviruses are globally spread zoonotic pathogens, which can cause hemorrhagic fever with renal syndrome (HFRS) and hantavirus pulmonary syndrome (HPS) with significant burden to human health. The pathogenesis mechanisms of orthohantavirus-caused diseases are not known in detail; however, excessive immune response towards the virus with concomitant pathological effects against host tissues appears to be a contributing factor. Here we report an increase of free immunoglobulin (Ig) light chains (FLCs), components required to make complete Ig molecules, in blood of acute HFRS and HPS. Samples collected during acute HFRS demonstrated increased FLCs levels in the urine and blood of patients hospitalized due the disease. Furthermore, the FLC levels positively correlated with markers of acute kidney injury. In addition, our results show that orthohantaviruses can infect and activate B cells to produce FLCs as well as whole Igs, which provides a mechanistic explanation of the increased FLC levels in patients. Taken together, our results suggest that aberrant antibody responses might play a role in the pathogenesis of orthohantavirus infections.
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48
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Coagulopathy in Acute Puumala Hantavirus Infection. Viruses 2021; 13:v13081553. [PMID: 34452419 PMCID: PMC8402851 DOI: 10.3390/v13081553] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 07/27/2021] [Accepted: 08/02/2021] [Indexed: 12/26/2022] Open
Abstract
Puumala hantavirus (PUUV) causes a hemorrhagic fever with renal syndrome (HFRS), also called nephropathia epidemica (NE), which is mainly endemic in Europe and Russia. The clinical features include a low platelet count, altered coagulation, endothelial activation, and acute kidney injury (AKI). Multiple connections between coagulation pathways and inflammatory mediators, as well as complement and kallikrein–kinin systems, have been reported. The bleeding symptoms are usually mild. PUUV-infected patients also have an increased risk for disseminated intravascular coagulation (DIC) and thrombosis.
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49
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Varricchi G, Modestino L, Poto R, Cristinziano L, Gentile L, Postiglione L, Spadaro G, Galdiero MR. Neutrophil extracellular traps and neutrophil-derived mediators as possible biomarkers in bronchial asthma. Clin Exp Med 2021; 22:285-300. [PMID: 34342773 PMCID: PMC9110438 DOI: 10.1007/s10238-021-00750-8] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Accepted: 07/25/2021] [Indexed: 12/21/2022]
Abstract
Neutrophils (PMNs) contain and release a powerful arsenal of mediators, including several granular enzymes, reactive oxygen species (ROS) and neutrophil extracellular traps (NETs). Although airway neutrophilia is associated with severity, poor response to glucocorticoids and exacerbations, the pathophysiological role of neutrophils in asthma remains poorly understood. Twenty-four patients with asthma and 22 healthy controls (HCs) were prospectively recruited. Highly purified peripheral blood neutrophils (> 99%) were evaluated for ROS production and activation status upon stimulation with lipopolysaccharide (LPS), N-formylmethionyl-leucyl-phenylalanine (fMLP) and phorbol 12-myristate 13-acetate (PMA). Plasma levels of myeloperoxidase (MPO), CXCL8, matrix metalloproteinase-9 (MMP-9), granulocyte–monocyte colony-stimulating factor (GM-CSF) and vascular endothelial growth factor (VEGF-A) were measured by ELISA. Plasma concentrations of citrullinated histone H3 (CitH3) and circulating free DNA (dsDNA) were evaluated as NET biomarkers. Activated PMNs from asthmatics displayed reduced ROS production and activation status compared to HCs. Plasma levels of MPO, MMP-9 and CXCL8 were increased in asthmatics compared to HCs. CitH3 and dsDNA plasma levels were increased in asthmatics compared to controls and the CitH3 concentrations were inversely correlated to the % decrease in FEV1/FVC in asthmatics. These findings indicate that neutrophils and their mediators could have an active role in asthma pathophysiology.
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Affiliation(s)
- Gilda Varricchi
- Department of Translational Medical Sciences, University of Naples Federico II, 80131, Naples, Italy
- Center for Basic and Clinical Immunology Research (CISI), University of Naples Federico II, 80131, Naples, Italy
- World Allergy Organization (WAO) Center of Excellence, 80131, Naples, Italy
- Institute of Experimental Endocrinology and Oncology (IEOS), National Research Council, 80131, Naples, Italy
| | - Luca Modestino
- Department of Translational Medical Sciences, University of Naples Federico II, 80131, Naples, Italy
- Center for Basic and Clinical Immunology Research (CISI), University of Naples Federico II, 80131, Naples, Italy
- World Allergy Organization (WAO) Center of Excellence, 80131, Naples, Italy
| | - Remo Poto
- Department of Translational Medical Sciences, University of Naples Federico II, 80131, Naples, Italy
- Center for Basic and Clinical Immunology Research (CISI), University of Naples Federico II, 80131, Naples, Italy
- World Allergy Organization (WAO) Center of Excellence, 80131, Naples, Italy
| | - Leonardo Cristinziano
- Department of Translational Medical Sciences, University of Naples Federico II, 80131, Naples, Italy
- Center for Basic and Clinical Immunology Research (CISI), University of Naples Federico II, 80131, Naples, Italy
- World Allergy Organization (WAO) Center of Excellence, 80131, Naples, Italy
| | - Luca Gentile
- Department of Molecular Medicine and Medical Biotechnologies, University of Naples Federico II, 80131, Naples, Italy
| | - Loredana Postiglione
- Department of Translational Medical Sciences, University of Naples Federico II, 80131, Naples, Italy
- Center for Basic and Clinical Immunology Research (CISI), University of Naples Federico II, 80131, Naples, Italy
- World Allergy Organization (WAO) Center of Excellence, 80131, Naples, Italy
| | - Giuseppe Spadaro
- Department of Translational Medical Sciences, University of Naples Federico II, 80131, Naples, Italy
- Center for Basic and Clinical Immunology Research (CISI), University of Naples Federico II, 80131, Naples, Italy
- World Allergy Organization (WAO) Center of Excellence, 80131, Naples, Italy
| | - Maria Rosaria Galdiero
- Department of Translational Medical Sciences, University of Naples Federico II, 80131, Naples, Italy.
- Center for Basic and Clinical Immunology Research (CISI), University of Naples Federico II, 80131, Naples, Italy.
- World Allergy Organization (WAO) Center of Excellence, 80131, Naples, Italy.
- Institute of Experimental Endocrinology and Oncology (IEOS), National Research Council, 80131, Naples, Italy.
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50
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Niedźwiedzka-Rystwej P, Grywalska E, Hrynkiewicz R, Bębnowska D, Wołącewicz M, Majchrzak A, Parczewski M. Interplay between Neutrophils, NETs and T-Cells in SARS-CoV-2 Infection-A Missing Piece of the Puzzle in the COVID-19 Pathogenesis? Cells 2021; 10:1817. [PMID: 34359987 PMCID: PMC8304299 DOI: 10.3390/cells10071817] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2021] [Revised: 07/15/2021] [Accepted: 07/16/2021] [Indexed: 02/07/2023] Open
Abstract
Since the end of 2019, a new, dangerous virus has caused the deaths of more than 3 million people. Efforts to fight the disease remain multifaceted and include prophylactic strategies (vaccines), the development of antiviral drugs targeting replication, and the mitigation of the damage associated with exacerbated immune responses (e.g., interleukin-6-receptor inhibitors). However, numerous uncertainties remain, making it difficult to lower the mortality rate, especially among critically ill patients. While looking for a new means of understanding the pathomechanisms of the disease, we asked a question-is our immunity key to resolving these uncertainties? In this review, we attempt to answer this question, and summarize, interpret, and discuss the available knowledge concerning the interplay between neutrophils, neutrophil extracellular traps (NETs), and T-cells in COVID-19. These are considered to be the first line of defense against pathogens and, thus, we chose to emphasize their role in SARS-CoV-2 infection. Although immunologic alterations are the subject of constant research, they are poorly understood and often underestimated. This review provides background information for the expansion of research on the novel, immunity-oriented approach to diagnostic and treatment possibilities.
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Affiliation(s)
| | - Ewelina Grywalska
- Department of Clinical Immunology and Immunotherapy, Medical University of Lublin, 20-093 Lublin, Poland;
| | - Rafał Hrynkiewicz
- Institute of Biology, University of Szczecin, 71-412 Szczecin, Poland; (R.H.); (D.B.)
| | - Dominika Bębnowska
- Institute of Biology, University of Szczecin, 71-412 Szczecin, Poland; (R.H.); (D.B.)
| | - Mikołaj Wołącewicz
- Department of Environmental Microbiology and Biotechnology, University of Warsaw, 02-096 Warsaw, Poland;
| | - Adam Majchrzak
- Department of Pediatric Infectious Diseases, Independent Public Regional Hospital in Szczecin, 71-455 Szczecin, Poland;
| | - Miłosz Parczewski
- Department of Infectious, Tropical Diseases and Immune Deficiency, Pomeranian Medical University in Szczecin, 71-455 Szczecin, Poland;
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