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Siow KM, Güngör M, Wrona D, Raimondi F, Pastukhov O, Tsapogas P, Menzi T, Schmitz M, Kulcsár PI, Schwank G, Schulz A, Jinek M, Modlich U, Siler U, Reichenbach J. Targeted knock-in of NCF1 cDNA into the NCF2 locus leads to myeloid phenotypic correction of p47 phox -deficient chronic granulomatous disease. MOLECULAR THERAPY. NUCLEIC ACIDS 2024; 35:102229. [PMID: 38952440 PMCID: PMC11215332 DOI: 10.1016/j.omtn.2024.102229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Accepted: 05/22/2024] [Indexed: 07/03/2024]
Abstract
p47 phox -deficient chronic granulomatous disease (p47-CGD) is a primary immunodeficiency caused by mutations in the neutrophil cytosolic factor 1 (NCF1) gene, resulting in defective NADPH oxidase function in phagocytes. Due to its complex genomic context, the NCF1 locus is not suited for safe gene editing with current genome editing technologies. Therefore, we developed a targeted NCF1 coding sequence knock-in by CRISPR-Cas9 ribonucleoprotein and viral vector template delivery, to restore p47 phox expression under the control of the endogenous NCF2 locus. NCF2 encodes for p67 phox , an NADPH oxidase subunit that closely interacts with p47 phox and is predominantly expressed in myeloid cells. This approach restored p47 phox expression and NADPH oxidase function in p47-CGD patient hematopoietic stem and progenitor cells (HSPCs) and in p47 phox -deficient mouse HSPCs, with the transgene expression following a myeloid differentiation pattern. Adeno-associated viral vectors performed favorably over integration-deficient lentiviral vectors for template delivery, with fewer off-target integrations and higher correction efficacy in HSPCs. Such myeloid-directed gene editing is promising for clinical CGD gene therapy, as it leads to the co-expression of p47 phox and p67 phox , ensuring spatiotemporal and near-physiological transgene expression in myeloid cells.
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Affiliation(s)
- Kah Mun Siow
- Division of Gene and Cell Therapy, Institute for Regenerative Medicine, University of Zurich, Schlieren, 8952 Zurich, Switzerland
| | - Merve Güngör
- Division of Gene and Cell Therapy, Institute for Regenerative Medicine, University of Zurich, Schlieren, 8952 Zurich, Switzerland
| | - Dominik Wrona
- Division of Gene and Cell Therapy, Institute for Regenerative Medicine, University of Zurich, Schlieren, 8952 Zurich, Switzerland
| | - Federica Raimondi
- Division of Gene and Cell Therapy, Institute for Regenerative Medicine, University of Zurich, Schlieren, 8952 Zurich, Switzerland
| | - Oleksandr Pastukhov
- Division of Gene and Cell Therapy, Institute for Regenerative Medicine, University of Zurich, Schlieren, 8952 Zurich, Switzerland
| | - Panagiotis Tsapogas
- Division of Gene and Cell Therapy, Institute for Regenerative Medicine, University of Zurich, Schlieren, 8952 Zurich, Switzerland
| | - Timon Menzi
- Division of Gene and Cell Therapy, Institute for Regenerative Medicine, University of Zurich, Schlieren, 8952 Zurich, Switzerland
| | - Michael Schmitz
- Department of Biochemistry, University of Zurich, 8057 Zurich, Switzerland
| | - Péter István Kulcsár
- Institute of Pharmacology and Toxicology, University of Zurich, 8057 Zurich, Switzerland
| | - Gerald Schwank
- Institute of Pharmacology and Toxicology, University of Zurich, 8057 Zurich, Switzerland
| | - Ansgar Schulz
- Department of Pediatrics, University Medical Center Ulm, 89075 Ulm, Germany
| | - Martin Jinek
- Department of Biochemistry, University of Zurich, 8057 Zurich, Switzerland
| | - Ute Modlich
- Division of Gene and Cell Therapy, Institute for Regenerative Medicine, University of Zurich, Schlieren, 8952 Zurich, Switzerland
| | - Ulrich Siler
- Division of Gene and Cell Therapy, Institute for Regenerative Medicine, University of Zurich, Schlieren, 8952 Zurich, Switzerland
- School of Life Sciences, Institute for Pharma Technology, University of Applied Sciences and Arts Northwestern Switzerland, 4132 Muttenz, Switzerland
| | - Janine Reichenbach
- Division of Gene and Cell Therapy, Institute for Regenerative Medicine, University of Zurich, Schlieren, 8952 Zurich, Switzerland
- Department of Somatic Gene Therapy, University Children’s Hospital Zurich, 8032 Zurich, Switzerland
- Center for Applied Biotechnology and Molecular Medicine (CABMM), University of Zurich, 8057 Zurich, Switzerland
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Chen J, Cao Y, Xiao J, Hong Y, Zhu Y. The emerging role of neutrophil extracellular traps in the progression of rheumatoid arthritis. Front Immunol 2024; 15:1438272. [PMID: 39221253 PMCID: PMC11361965 DOI: 10.3389/fimmu.2024.1438272] [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: 05/25/2024] [Accepted: 07/19/2024] [Indexed: 09/04/2024] Open
Abstract
Rheumatoid arthritis (RA) is a chronic autoimmune disease with a complex etiology. Neutrophil extracellular traps (NETs are NETwork protein structures activated by neutrophils to induce the cleavage and release of DNA-protein complexes). Current studies have shown the critical involvement of NETs in the progression of autoimmune diseases, Neutrophils mostly gather in the inflammatory sites of patients and participate in the pathogenesis of autoimmune diseases in various ways. NETs, as the activated state of neutrophils, have attracted much attention in immune diseases. Many molecules released in NETs are targeted autoantigens in autoimmune diseases, such as histones, citrulline peptides, and myeloperoxidase. All of these suggest that NETs have a direct causal relationship between the production of autoantigens and autoimmune diseases. For RA in particular, as a disorder of the innate and adaptive immune response, the pathogenesis of RA is inseparable from the generation of RA. In this article, we investigate the emerging role of NETs in the pathogenesis of RA and suggest that NETs may be an important target for the treatment of inflammatory autoimmune diseases.
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Affiliation(s)
- Jingjing Chen
- The Geriatrics, Graduate School of Anhui University of Chinese Medicine, Hefei, China
| | - Yang Cao
- The Geriatrics, Graduate School of Anhui University of Chinese Medicine, Hefei, China
| | - Jing Xiao
- The Geriatrics, Graduate School of Anhui University of Chinese Medicine, Hefei, China
| | - Yujie Hong
- The Geriatrics, Graduate School of Anhui University of Chinese Medicine, Hefei, China
| | - Yan Zhu
- The Geriatrics, The Second Affiliated Hospital of Anhui University of Chinese Medicine, Hefei, China
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Elhasid R, Baron S, Fidel V, Kaganov K, Shukrun R. Altered neutrophil extracellular traps formation among medical residents with sleep deprivation. Heliyon 2024; 10:e35470. [PMID: 39170531 PMCID: PMC11336760 DOI: 10.1016/j.heliyon.2024.e35470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2024] [Revised: 07/29/2024] [Accepted: 07/29/2024] [Indexed: 08/23/2024] Open
Abstract
Resident physicians on long-term night shifts often face sleep deprivation, affecting the immune response, notably neutrophils, vital to innate defense mechanisms. Sleep-deprived residents exhibit altered neutrophil counts and reduced phagocytosis and NADPH oxidase activity, critical to combating infections. Our study focused on neutrophil extracellular traps (NETs), a defense process against pathogens not previously linked to sleep loss. Results revealed that sleep-deprived residents exhibited a 19.8 % reduction in NET formation compared to hospital workers with regular sleep patterns (P < 0.01). Additionally, key NETs proteins, Neutrophil Elastase and Myeloperoxidase, were less active in sleep-deprived individuals (1.53mU; P < 0.01 and 0.95U; P < 0.001 decrease, accordingly). Interestingly, the ability to form NETs resumed to normal levels three months post-residency among pediatric residents. The causal relationship between reduced NETs due to sleep deprivation and the increased susceptibility to infections, as well as its implications for infection severity, is a critical area for further investigation.
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Affiliation(s)
- Ronit Elhasid
- Pediatric Hemato-Oncology Research Laboratory, Tel Aviv Medical Center, Tel Aviv, Israel
- Department of Pediatric Hemato-Oncology, Tel Aviv Medical Center, Tel Aviv, Israel
- Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Szilvia Baron
- Pediatric Hemato-Oncology Research Laboratory, Tel Aviv Medical Center, Tel Aviv, Israel
| | - Victoria Fidel
- Pediatric Hemato-Oncology Research Laboratory, Tel Aviv Medical Center, Tel Aviv, Israel
| | - Kira Kaganov
- Pediatric Hemato-Oncology Research Laboratory, Tel Aviv Medical Center, Tel Aviv, Israel
- Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Rachel Shukrun
- Pediatric Hemato-Oncology Research Laboratory, Tel Aviv Medical Center, Tel Aviv, Israel
- Department of Pediatric Hemato-Oncology, Tel Aviv Medical Center, Tel Aviv, Israel
- Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
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4
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Geng X, Wang DW, Li H. The pivotal role of neutrophil extracellular traps in cardiovascular diseases: Mechanisms and therapeutic implications. Biomed Pharmacother 2024; 179:117289. [PMID: 39151311 DOI: 10.1016/j.biopha.2024.117289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2024] [Revised: 08/05/2024] [Accepted: 08/08/2024] [Indexed: 08/19/2024] Open
Abstract
Cardiovascular diseases (CVDs) continue to pose a significant burden on global health, prominently contributing to morbidity and mortality rates worldwide. Recent years have witnessed an increasing recognition of the intricate involvement of neutrophil extracellular traps (NETs) in the pathology of diverse cardiovascular conditions. This review provides a comprehensive analysis of the multifaceted functions of NETs in cardiovascular diseases, shedding light on the impact on atherosclerosis, myocardial infarction, heart failure, myocarditis, atrial fibrillation, aortic stenosis, and the potential therapeutic avenues targeting NETs.
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Affiliation(s)
- Xinyu Geng
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Dao Wen Wang
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Huihui Li
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.
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O’Donovan CJ, Tan LT, Abidin MAZ, Roderick MR, Grammatikos A, Bernatoniene J. Diagnosis of Chronic Granulomatous Disease: Strengths and Challenges in the Genomic Era. J Clin Med 2024; 13:4435. [PMID: 39124702 PMCID: PMC11313294 DOI: 10.3390/jcm13154435] [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: 06/27/2024] [Revised: 07/17/2024] [Accepted: 07/24/2024] [Indexed: 08/12/2024] Open
Abstract
Chronic granulomatous disease (CGD) is a group of rare primary inborn errors of immunity characterised by a defect in the phagocyte respiratory burst, which leads to severe and life-threatening infective and inflammatory complications. Despite recent advances in our understanding of the genetic and molecular pathophysiology of X-linked and autosomal recessive CGD, and growth in the availability of functional and genetic testing, there remain significant barriers to early and accurate diagnosis. In the current review, we provide an up-to-date summary of CGD pathophysiology, underpinning current methods of diagnostic testing for CGD and closely related disorders. We present an overview of the benefits of early diagnosis and when to suspect and test for CGD. We discuss current and historical methods for functional testing of NADPH oxidase activity, as well as assays for measuring protein expression of NADPH oxidase subunits. Lastly, we focus on genetic and genomic methods employed to diagnose CGD, including gene-targeted panels, comprehensive genomic testing and ancillary methods. Throughout, we highlight general limitations of testing, and caveats specific to interpretation of results in the context of CGD and related disorders, and provide an outlook for newborn screening and the future.
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Affiliation(s)
- Conor J. O’Donovan
- Department of Paediatric Immunology and Infectious Diseases, Bristol Royal Hospital for Children, University Hospitals Bristol and Weston NHS Foundation Trust, Upper Maudlin Street, Bristol BS2 8BJ, UK
- School of Cellular and Molecular Medicine, University of Bristol, University Walk, Bristol BS8 1TD, UK
| | - Lay Teng Tan
- Department of Paediatric Immunology and Infectious Diseases, Bristol Royal Hospital for Children, University Hospitals Bristol and Weston NHS Foundation Trust, Upper Maudlin Street, Bristol BS2 8BJ, UK
- Department of Paediatrics, University Malaya Medical Center, Lembah Pantai, Kuala Lumpur 59100, Malaysia
| | - Mohd A. Z. Abidin
- Department of Paediatric Immunology and Infectious Diseases, Bristol Royal Hospital for Children, University Hospitals Bristol and Weston NHS Foundation Trust, Upper Maudlin Street, Bristol BS2 8BJ, UK
- Department of Paediatrics, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang 43400, Malaysia
| | - Marion R. Roderick
- Department of Paediatric Immunology and Infectious Diseases, Bristol Royal Hospital for Children, University Hospitals Bristol and Weston NHS Foundation Trust, Upper Maudlin Street, Bristol BS2 8BJ, UK
- School of Cellular and Molecular Medicine, University of Bristol, University Walk, Bristol BS8 1TD, UK
| | - Alexandros Grammatikos
- Department of Immunology, Southmead Hospital, North Bristol NHS Trust, Bristol BS10 5NB, UK
| | - Jolanta Bernatoniene
- Department of Paediatric Immunology and Infectious Diseases, Bristol Royal Hospital for Children, University Hospitals Bristol and Weston NHS Foundation Trust, Upper Maudlin Street, Bristol BS2 8BJ, UK
- School of Cellular and Molecular Medicine, University of Bristol, University Walk, Bristol BS8 1TD, UK
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6
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da Silva NM, Leite NPDM, Carvalho AE, Almeida VDD, Santos ÍKD, Cavalcanti JRLDP, Fernandes TAADM, Nascimento EGCD, Andrade MFD. The Role of Extracellular Traps in HIV Infection. AIDS Res Hum Retroviruses 2024; 40:308-316. [PMID: 37772695 DOI: 10.1089/aid.2022.0178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/30/2023] Open
Abstract
Human immunodeficiency virus (HIV) infection is still an important public health problem, which justifies the research of new therapies to combat it. Recent studies show that Extracellular Traps (ETs) are cellular mechanisms useful in the capture and destruction of some viruses, such as the HIV. Here, we show that neutrophils from peripheral blood, genital tissues, and placenta are activated when exposed to human immunodeficiency virus type 1 (HIV-1) and release Neutrophil Extracellular Traps (NETs). The NETs can capture, neutralize, and inactivate the virus and, also, protect other target cells from HIV infection, as long as the DNA and other constituents of the NETs remain intact. Further, the review indicates that the immunoprotective role of NETs in the context of HIV-1 infection is a promising finding for the development of new antiviral therapies. It is necessary, however, the development of studies that evaluate the tissue injury that NETs can cause and the biological relationships with other cells to improve them as therapeutic targets.
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Affiliation(s)
- Natanias Macson da Silva
- Graduate Program in Health and Society, School of Health Sciences, University of Rio Grande do Norte State, Mossoro, Brazil
- Department of Biomedical Sciences, School of Health Sciences, University of Rio Grande do Norte State, Mossoro, Brazil
| | | | - Amanda Estevam Carvalho
- Multicenter Graduate Program in Biochemistry and Molecular Biology, School of Health Sciences, University of Rio Grande do Norte State, Mossoro, Brazil
| | - Valéria Duarte de Almeida
- Multicenter Graduate Program in Physiological Sciences, School of Health Sciences, University of Rio Grande do Norte State, Mossoro, Brazil
| | - Ísis Kelly Dos Santos
- Department of Physical Education, School of Physical Education, University of Rio Grande do Norte State, Mossoro, Brazil
| | - José Rodolfo Lopes de Paiva Cavalcanti
- Graduate Program in Health and Society, School of Health Sciences, University of Rio Grande do Norte State, Mossoro, Brazil
- Department of Biomedical Sciences, School of Health Sciences, University of Rio Grande do Norte State, Mossoro, Brazil
- Multicenter Graduate Program in Biochemistry and Molecular Biology, School of Health Sciences, University of Rio Grande do Norte State, Mossoro, Brazil
- Multicenter Graduate Program in Physiological Sciences, School of Health Sciences, University of Rio Grande do Norte State, Mossoro, Brazil
| | - Thales Allyrio Araújo de Medeiros Fernandes
- Graduate Program in Health and Society, School of Health Sciences, University of Rio Grande do Norte State, Mossoro, Brazil
- Department of Biomedical Sciences, School of Health Sciences, University of Rio Grande do Norte State, Mossoro, Brazil
- Multicenter Graduate Program in Biochemistry and Molecular Biology, School of Health Sciences, University of Rio Grande do Norte State, Mossoro, Brazil
- Multicenter Graduate Program in Physiological Sciences, School of Health Sciences, University of Rio Grande do Norte State, Mossoro, Brazil
| | - Ellany Gurgel Cosme do Nascimento
- Graduate Program in Health and Society, School of Health Sciences, University of Rio Grande do Norte State, Mossoro, Brazil
- Department of Biomedical Sciences, School of Health Sciences, University of Rio Grande do Norte State, Mossoro, Brazil
| | - Micássio Fernandes de Andrade
- Graduate Program in Health and Society, School of Health Sciences, University of Rio Grande do Norte State, Mossoro, Brazil
- Multicenter Graduate Program in Biochemistry and Molecular Biology, School of Health Sciences, University of Rio Grande do Norte State, Mossoro, Brazil
- Department of Health Sciences, School of Biological and Health Sciences, Federal Rural University of the Semi-arid, Mossoro, Brazil
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7
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King PT, Dousha L. Neutrophil Extracellular Traps and Respiratory Disease. J Clin Med 2024; 13:2390. [PMID: 38673662 PMCID: PMC11051312 DOI: 10.3390/jcm13082390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Revised: 03/26/2024] [Accepted: 04/17/2024] [Indexed: 04/28/2024] Open
Abstract
Extracellular traps made by neutrophils (NETs) and other leukocytes such as macrophages and eosinophils have a key role in the initial immune response to infection but are highly inflammatory and may contribute to tissue damage. They are particularly relevant to lung disease, with the pulmonary anatomy facilitating their ability to fully extend into the airways/alveolar space. There has been a rapid expansion in the number of published studies demonstrating their role in a variety of important respiratory diseases including chronic obstructive pulmonary disease, cystic fibrosis, bronchiectasis, asthma, pneumonia, COVID-19, rhinosinusitis, interstitial lung disease and lung cancer. The expression of NETs and other traps is a specific process, and diagnostic tests need to differentiate them from other inflammatory pathways/causes of cell death that are also characterised by the presence of extracellular DNA. The specific targeting of this pathway by relevant therapeutics may have significant clinical benefit; however, current clinical trials/evidence are at a very early stage. This review will provide a broad overview of the role of NETs and their possible treatment in respiratory disease.
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Affiliation(s)
- Paul T. King
- Monash Lung, Sleep, Allergy and Immunology, Monash Medical Centre, 246 Clayton Rd, Clayton, Melbourne, VIC 3168, Australia;
- Department of Medicine, Monash University, Clayton, Melbourne, VIC 3168, Australia
| | - Lovisa Dousha
- Monash Lung, Sleep, Allergy and Immunology, Monash Medical Centre, 246 Clayton Rd, Clayton, Melbourne, VIC 3168, Australia;
- Department of Medicine, Monash University, Clayton, Melbourne, VIC 3168, Australia
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8
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Zerbe CS, Holland SM. Functional neutrophil disorders: Chronic granulomatous disease and beyond. Immunol Rev 2024; 322:71-80. [PMID: 38429865 PMCID: PMC10950525 DOI: 10.1111/imr.13308] [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] [Indexed: 03/03/2024]
Abstract
Since their description by Metchnikoff in 1905, phagocytes have been increasingly recognized to be the entities that traffic to sites of infection and inflammation, engulf and kill infecting organisms, and clear out apoptotic debris all the while making antigens available and accessible to the lymphoid organs for future use. Therefore, phagocytes provide the gateway and the first check in host protection and immune response. Disorders in killing and chemotaxis lead not only to infection susceptibility, but also to autoimmunity. We aim to describe chronic granulomatous disease and the leukocyte adhesion deficiencies as well as myeloperoxidase deficiency and G6PD deficiency as paradigms of critical pathways.
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Affiliation(s)
- Christa S Zerbe
- Laboratory of Clinical Immunology, National Institutes of Allergy and Infectious Disease, The National Institutes of Health, Bethesda, Maryland, USA
| | - Steven M Holland
- Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, USA
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9
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Rodrigues VS, Trevisan LAC, Cintra BS, Pires RH, Ribeiro AB, Tavares DC, Oberhaus E, Ferreira JC. Effectiveness of photo-ozone therapy against equine Pythium insidiosum. J Equine Vet Sci 2024; 134:105030. [PMID: 38342358 DOI: 10.1016/j.jevs.2024.105030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2023] [Revised: 01/18/2024] [Accepted: 02/06/2024] [Indexed: 02/13/2024]
Abstract
Cutaneous pythiosis is a life-threatening infectious disease. Low-level laser therapy (LLLT) and ozone (O3) have been used individually in the treatment of infected wounds. The goals of the study were a) to characterize the antimicrobial action of the photo-ozone therapy (LLLT-O3) against equine Pythium insidiosum, and b) to assess the cytotoxic potential of the LLLT-O3 in keratinocytes. Specimens of pathogen were isolated from 10 horses. After culturing, 120 hyphae plugs were distributed among four groups (n=30 hyphae plugs/group): LLLT (laser irradiation for 160 sec;), O3 (exposition to O3 for 15 min;), LLLT-O3 (LLLT and O3 treatments in sequence) and control (untreated plugs). The hyphae growth was measured during the first 14 days post-treatment. Where there was an absence of hyphae growth, the plug was recultured for an additional 7 days. The cytotoxic potential of the treatments against HaCaT keratinocytes was assessed by colorimetric assays. The LLLT-O3 and O3 treatments inactivated, respectively, 92.3% (28/30) and 30% (9/30) of the samples. No growth was detected after 7 days reculture of inactivated hyphae plugs on new media. Hyphae growth was visualized in 100% of the control and LLLT hyphae plugs. The viability of HaCaT cells was not affected by the isolated treatments (LLLT and O3), while the LLLT-O3 showed slight cytotoxic effect (20%) when compared to the control group (P<0.05). Photo-ozone therapy inactivated equine P. insidiosum hyphae with minimal cytotoxicity in skin cells in vitro.
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Affiliation(s)
- V S Rodrigues
- Post-graduation Program in Animal Sciences, University of Franca, 201 Dr. Armando de Sáles Oliveira, Franca, SP, Brazil, 14404-600
| | - L A C Trevisan
- Post-graduation Program in Animal Sciences, University of Franca, 201 Dr. Armando de Sáles Oliveira, Franca, SP, Brazil, 14404-600
| | - B S Cintra
- Post-graduation Program in Animal Sciences, University of Franca, 201 Dr. Armando de Sáles Oliveira, Franca, SP, Brazil, 14404-600
| | - R H Pires
- Post-graduation Program in Animal Sciences, University of Franca, 201 Dr. Armando de Sáles Oliveira, Franca, SP, Brazil, 14404-600
| | - A B Ribeiro
- Post-graduation Program in Animal Sciences, University of Franca, 201 Dr. Armando de Sáles Oliveira, Franca, SP, Brazil, 14404-600
| | - D C Tavares
- Post-graduation Program in Animal Sciences, University of Franca, 201 Dr. Armando de Sáles Oliveira, Franca, SP, Brazil, 14404-600
| | - E Oberhaus
- School of Animal Sciences, Louisiana State University, 201D Animal & Food Sciences Lab Bldg., Baton Rouge, LA, USA, 70803
| | - J C Ferreira
- Post-graduation Program in Animal Sciences, University of Franca, 201 Dr. Armando de Sáles Oliveira, Franca, SP, Brazil, 14404-600.
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10
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Vinh DC. From Mendel to mycoses: Immuno-genomic warfare at the human-fungus interface. Immunol Rev 2024; 322:28-52. [PMID: 38069482 DOI: 10.1111/imr.13295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 11/06/2023] [Accepted: 11/14/2023] [Indexed: 03/20/2024]
Abstract
Fungi are opportunists: They particularly require a defect of immunity to cause severe or disseminated disease. While often secondary to an apparent iatrogenic cause, fungal diseases do occur in the absence of one, albeit infrequently. These rare cases may be due to an underlying genetic immunodeficiency that can present variably in age of onset, severity, or other infections, and in the absence of a family history of disease. They may also be due to anti-cytokine autoantibodies. This review provides a background on how human genetics or autoantibodies underlie cases of susceptibility to severe or disseminated fungal disease. Subsequently, the lessons learned from these inborn errors of immunity marked by fungal disease (IEI-FD) provide a framework to begin to mechanistically decipher fungal syndromes, potentially paving the way for precision therapy of the mycoses.
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Affiliation(s)
- Donald C Vinh
- Infectious Diseases - Hematology/Oncology/Transplant Clinical Program, Department of Medicine, McGill University Health Centre, Montreal, Quebec, Canada
- Centre of Excellence for Genetic Research in Infection and Immunity, Research Institute - McGill University Health Centre, Montreal, Quebec, Canada
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11
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Gibbings SL, Haist KC, Redente EF, Henson PM, Bratton DL. TNFα: TNFR1 signaling inhibits maturation and maintains the pro-inflammatory programming of monocyte-derived macrophages in murine chronic granulomatous disease. Front Immunol 2024; 15:1354836. [PMID: 38404573 PMCID: PMC10884288 DOI: 10.3389/fimmu.2024.1354836] [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: 12/13/2023] [Accepted: 01/24/2024] [Indexed: 02/27/2024] Open
Abstract
Introduction Loss of NADPH oxidase activity results in proinflammatory macrophages that contribute to hyperinflammation in Chronic Granulomatous Disease (CGD). Previously, it was shown in a zymosan-induced peritonitis model that gp91phox-/- (CGD) monocyte-derived macrophages (MoMacs) fail to phenotypically mature into pro-resolving MoMacs characteristic of wild type (WT) but retain the ability to do so when placed in the WT milieu. Accordingly, it was hypothesized that soluble factor(s) in the CGD milieu thwart appropriate programming. Methods We sought to identify key constituents using ex vivo culture of peritoneal inflammatory leukocytes and their conditioned media. MoMac phenotyping was performed via flow cytometry, measurement of efferocytic capacity and multiplex analysis of secreted cytokines. Addition of exogenous TNFα, TNFα neutralizing antibody and TNFR1-/- MoMacs were used to study the role of TNFα: TNFR1 signaling in MoMac maturation. Results More extensive phenotyping defined normal MoMac maturation and demonstrated failure of maturation of CGD MoMacs both ex vivo and in vivo. Protein components, and specifically TNFα, produced and released by CGD neutrophils and MoMacs into conditioned media was identified as critical to preventing maturation. Exogenous addition of TNFα inhibited WT MoMac maturation, and its neutralization allowed maturation of cultured CGD MoMacs. TNFα neutralization also reduced production of IL-1β, IL-6 and CXCL1 by CGD cells though these cytokines played no role in MoMac programming. MoMacs lacking TNFR1 matured more normally in the CGD milieu both ex vivo and following adoptive transfer in vivo. Discussion These data lend mechanistic insights into the utility of TNFα blockade in CGD and to other diseases where such therapy has been shown to be beneficial.
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Affiliation(s)
- Sophie L. Gibbings
- Department of Pediatrics, National Jewish Health, Denver, CO, United States
| | - Kelsey C. Haist
- Department of Pediatrics, National Jewish Health, Denver, CO, United States
| | - Elizabeth F. Redente
- Department of Pediatrics, National Jewish Health, Denver, CO, United States
- Department of Medicine, University of Colorado Denver, Aurora, CO, United States
| | - Peter M. Henson
- Department of Pediatrics, National Jewish Health, Denver, CO, United States
- Department of Medicine, University of Colorado Denver, Aurora, CO, United States
- Department of Immunology and Microbiology, University of Colorado Denver, Aurora, CO, United States
| | - Donna L. Bratton
- Department of Pediatrics, National Jewish Health, Denver, CO, United States
- Department of Pediatrics, University of Colorado Denver, Aurora, CO, United States
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12
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Tu H, Ren H, Jiang J, Shao C, Shi Y, Li P. Dying to Defend: Neutrophil Death Pathways and their Implications in Immunity. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2306457. [PMID: 38044275 PMCID: PMC10885667 DOI: 10.1002/advs.202306457] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 11/06/2023] [Indexed: 12/05/2023]
Abstract
Neutrophils, accounting for ≈70% of human peripheral leukocytes, are key cells countering bacterial and fungal infections. Neutrophil homeostasis involves a balance between cell maturation, migration, aging, and eventual death. Neutrophils undergo different death pathways depending on their interactions with microbes and external environmental cues. Neutrophil death has significant physiological implications and leads to distinct immunological outcomes. This review discusses the multifarious neutrophil death pathways, including apoptosis, NETosis, pyroptosis, necroptosis, and ferroptosis, and outlines their effects on immune responses and disease progression. Understanding the multifaceted aspects of neutrophil death, the intersections among signaling pathways and ramifications of immunity will help facilitate the development of novel therapeutic methods.
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Affiliation(s)
- Haiyue Tu
- The First Affiliated Hospital of Soochow UniversityState Key Laboratory of Radiation Medicine and ProtectionInstitutes for Translational MedicineSuzhou Medical College of Soochow UniversitySuzhouJiangsu215123China
| | - Haoyu Ren
- The First Affiliated Hospital of Soochow UniversityState Key Laboratory of Radiation Medicine and ProtectionInstitutes for Translational MedicineSuzhou Medical College of Soochow UniversitySuzhouJiangsu215123China
| | - Junjie Jiang
- The First Affiliated Hospital of Soochow UniversityState Key Laboratory of Radiation Medicine and ProtectionInstitutes for Translational MedicineSuzhou Medical College of Soochow UniversitySuzhouJiangsu215123China
| | - Changshun Shao
- The First Affiliated Hospital of Soochow UniversityState Key Laboratory of Radiation Medicine and ProtectionInstitutes for Translational MedicineSuzhou Medical College of Soochow UniversitySuzhouJiangsu215123China
| | - Yufang Shi
- The First Affiliated Hospital of Soochow UniversityState Key Laboratory of Radiation Medicine and ProtectionInstitutes for Translational MedicineSuzhou Medical College of Soochow UniversitySuzhouJiangsu215123China
| | - Peishan Li
- The First Affiliated Hospital of Soochow UniversityState Key Laboratory of Radiation Medicine and ProtectionInstitutes for Translational MedicineSuzhou Medical College of Soochow UniversitySuzhouJiangsu215123China
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13
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Aroca-Crevillén A, Vicanolo T, Ovadia S, Hidalgo A. Neutrophils in Physiology and Pathology. ANNUAL REVIEW OF PATHOLOGY 2024; 19:227-259. [PMID: 38265879 PMCID: PMC11060889 DOI: 10.1146/annurev-pathmechdis-051222-015009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2024]
Abstract
Infections, cardiovascular disease, and cancer are major causes of disease and death worldwide. Neutrophils are inescapably associated with each of these health concerns, by either protecting from, instigating, or aggravating their impact on the host. However, each of these disorders has a very different etiology, and understanding how neutrophils contribute to each of them requires understanding the intricacies of this immune cell type, including their immune and nonimmune contributions to physiology and pathology. Here, we review some of these intricacies, from basic concepts in neutrophil biology, such as their production and acquisition of functional diversity, to the variety of mechanisms by which they contribute to preventing or aggravating infections, cardiovascular events, and cancer. We also review poorly explored aspects of how neutrophils promote health by favoring tissue repair and discuss how discoveries about their basic biology inform the development of new therapeutic strategies.
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Affiliation(s)
- Alejandra Aroca-Crevillén
- Cardiovascular Regeneration Program, Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Madrid, Spain;
| | - Tommaso Vicanolo
- Cardiovascular Regeneration Program, Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Madrid, Spain;
| | - Samuel Ovadia
- Vascular Biology and Therapeutics Program and Department of Immunobiology, Yale University, New Haven, USA
| | - Andrés Hidalgo
- Cardiovascular Regeneration Program, Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Madrid, Spain;
- Vascular Biology and Therapeutics Program and Department of Immunobiology, Yale University, New Haven, USA
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14
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Zhu W, Fan C, Dong S, Li X, Chen H, Zhou W. Neutrophil extracellular traps regulating tumorimmunity in hepatocellular carcinoma. Front Immunol 2023; 14:1253964. [PMID: 38173719 PMCID: PMC10764195 DOI: 10.3389/fimmu.2023.1253964] [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: 07/06/2023] [Accepted: 11/23/2023] [Indexed: 01/05/2024] Open
Abstract
As a component of the innate immune system, there is emerging evidence to suggest that neutrophils may play a critical role in the initiation and progression of hepatocellular carcinoma (HCC). Neutrophil extracellular traps (NETs) are web-like chromatin structures that protrude from the membranes during neutrophil activation. Recent research has shown that NETs, which are at the forefront of the renewed interest in neutrophil studies, are increasingly intertwined with HCC. By exploring the mechanisms of NETs in HCC, we aim to improve our understanding of the role of NETs and gain deeper insights into neutrophil biology. Therefore, this article provides a summary of key findings and discusses the emerging field of NETs in HCC.
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Affiliation(s)
- Weixiong Zhu
- The Second Clinical Medical College, Lanzhou University, Lanzhou, China
- Department of General Surgery, The Second Hospital of Lanzhou University, Lanzhou, China
| | - Chuanlei Fan
- The First Clinical Medical College, Lanzhou University, Lanzhou, China
| | - Shi Dong
- The Second Clinical Medical College, Lanzhou University, Lanzhou, China
- Department of General Surgery, The Second Hospital of Lanzhou University, Lanzhou, China
| | - Xin Li
- The Second Clinical Medical College, Lanzhou University, Lanzhou, China
- The First Clinical Medical College, Lanzhou University, Lanzhou, China
| | - Haofei Chen
- The Second Clinical Medical College, Lanzhou University, Lanzhou, China
- Department of General Surgery, The Second Hospital of Lanzhou University, Lanzhou, China
| | - Wence Zhou
- The Second Clinical Medical College, Lanzhou University, Lanzhou, China
- Department of General Surgery, The Second Hospital of Lanzhou University, Lanzhou, China
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15
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Unger L, Skoluda S, Backman E, Amulic B, Ponce‐Garcia FM, Etiaba CNC, Yellagunda S, Krüger R, von Bernuth H, Bylund J, Hube B, Naglik JR, Urban CF. Candida albicans induces neutrophil extracellular traps and leucotoxic hypercitrullination via candidalysin. EMBO Rep 2023; 24:e57571. [PMID: 37795769 PMCID: PMC10626426 DOI: 10.15252/embr.202357571] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 09/05/2023] [Accepted: 09/18/2023] [Indexed: 10/06/2023] Open
Abstract
The peptide toxin candidalysin, secreted by Candida albicans hyphae, promotes stimulation of neutrophil extracellular traps (NETs). However, candidalysin alone triggers a distinct mechanism for NET-like structures (NLS), which are more compact and less fibrous than canonical NETs. Candidalysin activates NADPH oxidase and calcium influx, with both processes contributing to morphological changes in neutrophils resulting in NLS formation. NLS are induced by leucotoxic hypercitrullination, which is governed by calcium-induced protein arginine deaminase 4 activation and initiation of intracellular signalling events in a dose- and time-dependent manner. However, activation of signalling by candidalysin does not suffice to trigger downstream events essential for NET formation, as demonstrated by lack of lamin A/C phosphorylation, an event required for activation of cyclin-dependent kinases that are crucial for NET release. Candidalysin-triggered NLS demonstrate anti-Candida activity, which is resistant to nuclease treatment and dependent on the deprivation of Zn2+ . This study reveals that C. albicans hyphae releasing candidalysin concurrently trigger canonical NETs and NLS, which together form a fibrous sticky network that entangles C. albicans hyphae and efficiently inhibits their growth.
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Affiliation(s)
- Lucas Unger
- Department of Clinical MicrobiologyUmeå UniversityUmeåSweden
- Umeå Centre for Microbial Research (UCMR)Umeå UniversityUmeåSweden
| | - Samuel Skoluda
- Department of Clinical MicrobiologyUmeå UniversityUmeåSweden
- Umeå Centre for Microbial Research (UCMR)Umeå UniversityUmeåSweden
| | - Emelie Backman
- Department of Clinical MicrobiologyUmeå UniversityUmeåSweden
- Umeå Centre for Microbial Research (UCMR)Umeå UniversityUmeåSweden
| | - Borko Amulic
- School of Cellular and Molecular MedicineUniversity of BristolBristolUK
| | | | - Chinelo NC Etiaba
- School of Cellular and Molecular MedicineUniversity of BristolBristolUK
| | - Sujan Yellagunda
- Department of Clinical MicrobiologyUmeå UniversityUmeåSweden
- Umeå Centre for Microbial Research (UCMR)Umeå UniversityUmeåSweden
| | - Renate Krüger
- Department of Pediatric Respiratory Medicine, Immunology and Critical Care MedicineCharité – Universitätsmedizin BerlinBerlinGermany
| | - Horst von Bernuth
- Department of Pediatric Respiratory Medicine, Immunology and Critical Care MedicineCharité – Universitätsmedizin BerlinBerlinGermany
- Department of ImmunologyLabor Berlin Labor Berlin – Charité Vivantes GmbHBerlinGermany
- Berlin Institute of Health at Charité – Universitätsmedizin BerlinBerlinGermany
- Charité – Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt‐Universität zu Berlin, and Berlin Institute of Health (BIH)Berlin‐Brandenburg Center for Regenerative Therapies (BCRT)BerlinGermany
| | - Johan Bylund
- Department of Oral Microbiology & Immunology, Institute of OdontologySahlgrenska Academy at University of GothenburgGothenburgSweden
| | - Bernhard Hube
- Department of Microbial Pathogenicity MechanismsLeibniz Institute for Natural Product Research and Infection Biology ‐ Hans‐Knoell‐InstituteJenaGermany
- Friedrich Schiller UniversityJenaGermany
| | - Julian R Naglik
- Centre for Host‐Microbiome Interactions, Faculty of Dentistry, Oral & Craniofacial SciencesKing's College LondonLondonUK
| | - Constantin F Urban
- Department of Clinical MicrobiologyUmeå UniversityUmeåSweden
- Umeå Centre for Microbial Research (UCMR)Umeå UniversityUmeåSweden
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16
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Fa P, Ke BG, Dupre A, Tsung A, Zhang H. The implication of neutrophil extracellular traps in nonalcoholic fatty liver disease. Front Immunol 2023; 14:1292679. [PMID: 38022519 PMCID: PMC10652891 DOI: 10.3389/fimmu.2023.1292679] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Accepted: 10/20/2023] [Indexed: 12/01/2023] Open
Abstract
Nonalcoholic fatty liver disease (NAFLD) is an expanding worldwide health concern, and the underlying mechanisms contributing to its progression still need further exploration. Neutrophil extracellular traps (NETs) are intricate formations comprised of nuclear constituents and diverse antimicrobial granules that are released into the extracellular milieu by activated neutrophils upon various triggers, which play a pivotal part in the onset and advancement of NAFLD. NETs actively participate in the genesis of NAFLD by fostering oxidative stress and inflammation, ultimately resulting in hepatic fat accumulation and the escalation of liver injury. Recent insights into the interaction with other hepatic immune populations and mediators, such as macrophages and T regulatory cells, have revealed several important mechanisms that can trigger further liver injury. In conclusion, the formation of NETs emerged as an important factor in the development of NAFLD, offering a promising target for innovative therapeutic approaches against this debilitating condition. This comprehensive review seeks to compile existing studies exploring the involvement of NETs in the genesis of NAFLD and their influence on the immune response throughout the progression of NAFLD.
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Affiliation(s)
- Pengyan Fa
- Department of Surgery, School of Medicine, University of Virginia, Charlottesville, VA, United States
| | - Benjamin G. Ke
- School of Medicine, University of Virginia, Charlottesville, VA, United States
| | - Abigail Dupre
- School of Medicine, University of Virginia, Charlottesville, VA, United States
| | - Allan Tsung
- Department of Surgery, School of Medicine, University of Virginia, Charlottesville, VA, United States
| | - Hongji Zhang
- Department of Surgery, School of Medicine, University of Virginia, Charlottesville, VA, United States
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17
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Zhang L, Zheng B, Bai Y, Zhou J, Zhang X, Yang Y, Yu J, Zhao H, Ma D, Wu H, Wen J. Exosomes-transferred LINC00668 Contributes to Thrombosis by Promoting NETs Formation in Inflammatory Bowel Disease. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2300560. [PMID: 37590310 PMCID: PMC10558653 DOI: 10.1002/advs.202300560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Revised: 06/03/2023] [Indexed: 08/19/2023]
Abstract
Epidemiological studies show an association between inflammatory bowel disease (IBD) and increased risk of thrombosis. However, how IBD influences thrombosis remains unknown. The current study shows that formation of neutrophil extracellular traps (NETs) significantly increased in the dextran sulfate sodium (DSS)-induced IBD mice, which in turn, contributes to thrombus formation in a NETs-dependent fashion. Furthermore, the exosomes isolated from the plasma of the IBD mice induce arterial and venous thrombosis in vivo. Importantly, proinflammatory factors-exposed intestinal epithelial cells (inflamed IECs) promote neutrophils to release NETs through their secreted exosomes. RNA sequencing revealed that LINC00668 is highly enriched in the inflamed IECs-derived exosomes. Mechanistically, LINC00668 facilitates the translocation of neutrophil elastase (NE) from the cytoplasmic granules to the nucleus via its interaction with NE in a sequence-specific manner, thereby inducing NETs release and thrombus formation. Importantly, berberine (BBR) suppresses the nuclear translocation of NE and subsequent NETs formation by inhibiting the interaction of LINC00668 with NE, thus exerting its antithrombotic effects. This study provides a novel pathobiological mechanism linking IBD and thrombosis by exosome-mediated NETs formation. Targeting LINC00668 can serve as a novel molecular treatment strategy to treat IBD-related thrombosis.
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Affiliation(s)
- Long Zhang
- Department of Biochemistry and Molecular BiologyThe Key Laboratory of Neural and Vascular BiologyMinistry of Education of ChinaHebei Medical UniversityShijiazhuang050017China
| | - Bin Zheng
- Department of Biochemistry and Molecular BiologyThe Key Laboratory of Neural and Vascular BiologyMinistry of Education of ChinaHebei Medical UniversityShijiazhuang050017China
| | - Yang Bai
- Department of Biochemistry and Molecular BiologyThe Key Laboratory of Neural and Vascular BiologyMinistry of Education of ChinaHebei Medical UniversityShijiazhuang050017China
| | - Jing Zhou
- Department of EndocrineThe Second Hospital of Hebei Medical UniversityShijiazhuang050017China
| | - Xin‐hua Zhang
- Department of Biochemistry and Molecular BiologyThe Key Laboratory of Neural and Vascular BiologyMinistry of Education of ChinaHebei Medical UniversityShijiazhuang050017China
- Institution of Chinese Integrative MedicineHebei Medical UniversityShijiazhuang050017China
| | - Yu‐qin Yang
- Department of Biochemistry and Molecular BiologyThe Key Laboratory of Neural and Vascular BiologyMinistry of Education of ChinaHebei Medical UniversityShijiazhuang050017China
| | - Jing Yu
- Department of RespiratoryThe Second Hospital of Hebei Medical UniversityShijiazhuang050017China
| | - Hong‐ye Zhao
- Department of Biochemistry and Molecular BiologyThe Key Laboratory of Neural and Vascular BiologyMinistry of Education of ChinaHebei Medical UniversityShijiazhuang050017China
| | - Dong Ma
- Department of Biochemistry and Molecular BiologyThe Key Laboratory of Neural and Vascular BiologyMinistry of Education of ChinaHebei Medical UniversityShijiazhuang050017China
| | - Han Wu
- Department of Biochemistry and Molecular BiologyThe Key Laboratory of Neural and Vascular BiologyMinistry of Education of ChinaHebei Medical UniversityShijiazhuang050017China
| | - Jin‐kun Wen
- Department of Biochemistry and Molecular BiologyThe Key Laboratory of Neural and Vascular BiologyMinistry of Education of ChinaHebei Medical UniversityShijiazhuang050017China
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18
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Yao M, Ma J, Wu D, Fang C, Wang Z, Guo T, Mo J. Neutrophil extracellular traps mediate deep vein thrombosis: from mechanism to therapy. Front Immunol 2023; 14:1198952. [PMID: 37680629 PMCID: PMC10482110 DOI: 10.3389/fimmu.2023.1198952] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Accepted: 08/10/2023] [Indexed: 09/09/2023] Open
Abstract
Deep venous thrombosis (DVT) is a part of venous thromboembolism (VTE) that clinically manifests as swelling and pain in the lower limbs. The most serious clinical complication of DVT is pulmonary embolism (PE), which has a high mortality rate. To date, its underlying mechanisms are not fully understood, and patients usually present with clinical symptoms only after the formation of the thrombus. Thus, it is essential to understand the underlying mechanisms of deep vein thrombosis for an early diagnosis and treatment of DVT. In recent years, many studies have concluded that Neutrophil Extracellular Traps (NETs) are closely associated with DVT. These are released by neutrophils and, in addition to trapping pathogens, can mediate the formation of deep vein thrombi, thereby blocking blood vessels and leading to the development of disease. Therefore, this paper describes the occurrence and development of NETs and discusses the mechanism of action of NETs on deep vein thrombosis. It aims to provide a direction for improved diagnosis and treatment of deep vein thrombosis in the near future.
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Affiliation(s)
- Mengting Yao
- The First Clinical College, Gannan Medical University, Ganzhou, Jiangxi, China
- Department of Orthopedic Surgery, The First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, China
| | - Jiacheng Ma
- The First Clinical College, Gannan Medical University, Ganzhou, Jiangxi, China
- Department of Orthopedic Surgery, The First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, China
| | - Dongwen Wu
- The First Clinical College, Gannan Medical University, Ganzhou, Jiangxi, China
- Department of Orthopedic Surgery, The First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, China
| | - Chucun Fang
- The First Clinical College, Gannan Medical University, Ganzhou, Jiangxi, China
- Department of Orthopedic Surgery, The First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, China
| | - Zilong Wang
- The First Clinical College, Gannan Medical University, Ganzhou, Jiangxi, China
- Department of Orthopedic Surgery, The First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, China
| | - Tianting Guo
- Department of Orthopedics, Guangdong Provincial People’s Hospital Ganzhou Hospital, Ganzhou Municipal Hospital, Ganzhou, Jiangxi, China
| | - Jianwen Mo
- Department of Orthopedic Surgery, The First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, China
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19
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Melbouci D, Haidar Ahmad A, Decker P. Neutrophil extracellular traps (NET): not only antimicrobial but also modulators of innate and adaptive immunities in inflammatory autoimmune diseases. RMD Open 2023; 9:e003104. [PMID: 37562857 PMCID: PMC10423839 DOI: 10.1136/rmdopen-2023-003104] [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: 02/24/2023] [Accepted: 05/14/2023] [Indexed: 08/12/2023] Open
Abstract
Polymorphonuclear neutrophils (PMN) represent one of the first lines of defence against invading pathogens and are the most abundant leucocytes in the circulation. Generally described as pro-inflammatory cells, recent data suggest that PMN also have immunomodulatory capacities. In response to certain stimuli, activated PMN expel neutrophil extracellular traps (NET), structures made of DNA and associated proteins. Although originally described as an innate immune mechanism fighting bacterial infection, NET formation (or probably rather an excess of NET together with impaired clearance of NET) may be deleterious. Indeed, NET have been implicated in the development of several inflammatory and autoimmune diseases as rheumatoid arthritis or systemic lupus erythematosus, as well as fibrosis or cancer. They have been suggested as a source of (neo)autoantigens or regulatory proteins like proteases or to act as a physical barrier. Different mechanisms of NET formation have been described, leading to PMN death or not, depending on the stimulus. Interestingly, NET may be both pro-inflammatory and anti-inflammatory and this probably partly depends on the mechanism, and thus the stimuli, triggering NET formation. Within this review, we will describe the pro-inflammatory and anti-inflammatory activities of NET and especially how NET may modulate immune responses.
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Affiliation(s)
- Dyhia Melbouci
- Inserm UMR 1125, Li2P, Université Sorbonne Paris Nord-Campus de Bobigny, Bobigny, Île-de-France, France
| | - Ahmad Haidar Ahmad
- Inserm UMR 1125, Li2P, Université Sorbonne Paris Nord-Campus de Bobigny, Bobigny, Île-de-France, France
| | - Patrice Decker
- Inserm UMR 1125, Li2P, Université Sorbonne Paris Nord-Campus de Bobigny, Bobigny, Île-de-France, France
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20
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Okeke EB, Louttit C, Snyder CM, Moon JJ. Neutrophils and neutrophil extracellular traps in cancer: promising targets for engineered nanomaterials. Drug Deliv Transl Res 2023; 13:1882-1895. [PMID: 36182992 PMCID: PMC10066838 DOI: 10.1007/s13346-022-01243-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/21/2022] [Indexed: 01/07/2023]
Abstract
Neutrophils are the most abundant white blood cells in circulation and constitute up to 60% of circulating leukocytes. Neutrophils play a significant role in host defense against pathogens through various mechanisms, including phagocytosis, production of antimicrobial proteins, and formation of neutrophil extracellular traps (NETs). Recently, the role of neutrophils and NETs in cancer has generated significant interest, as accumulating evidence suggests that neutrophils and NETs contribute to cancer progression and are associated with adverse patient outcomes. In this review, we will first highlight the roles of neutrophils and NETs in cancer progression and metastasis and discuss new drug delivery approaches to target and modulate neutrophils and NETs for cancer therapeutics.
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Affiliation(s)
- Emeka B Okeke
- Department of Biology, State University of New York at Fredonia, Fredonia, NY, 14063, USA.
- Department of Pharmaceutical Sciences, University of Michigan, Ann Arbor, MI, 48109, USA.
- Biointerfaces Institute, University of Michigan, Ann Arbor, MI, 48109, USA.
| | - Cameron Louttit
- Biointerfaces Institute, University of Michigan, Ann Arbor, MI, 48109, USA
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Caitlin M Snyder
- Department of Biology, State University of New York at Fredonia, Fredonia, NY, 14063, USA
| | - James J Moon
- Department of Pharmaceutical Sciences, University of Michigan, Ann Arbor, MI, 48109, USA.
- Biointerfaces Institute, University of Michigan, Ann Arbor, MI, 48109, USA.
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI, 48109, USA.
- Department of Chemical Engineering, University of Michigan, Ann Arbor, MI, 48109, USA.
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21
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Oliveira TKF, Oliveira-Silva J, Linhares-Lacerda L, da Silva Fraga-Junior V, Benjamim CF, Guimaraes-Costa AB, Saraiva EM. Leishmania infantum Axenic Amastigotes Induce Human Neutrophil Extracellular Traps and Resist NET-Mediated Killing. Trop Med Infect Dis 2023; 8:336. [PMID: 37505632 PMCID: PMC10385766 DOI: 10.3390/tropicalmed8070336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Revised: 06/16/2023] [Accepted: 06/18/2023] [Indexed: 07/29/2023] Open
Abstract
Neutrophils are multifaceted cells that, upon activation, release meshes of chromatin associated with different proteins, known as neutrophil extracellular traps (NETs). Leishmania amazonensis promastigotes and amastigotes induce NET release, and we have identified the signaling pathways involved in NET extrusion activated by promastigotes. Amastigotes maintain the infection in vertebrate hosts, and we have shown the association of NETs with amastigotes in human biopsies of cutaneous leishmaniasis. However, the interaction of amastigotes and neutrophils remains poorly understood. Our study aimed to characterize the pathways involved in the formation of NETs induced by axenic amastigotes from L. infantum, the causal agent of visceral leishmaniasis. Human neutrophils pretreated with signaling pathway inhibitors were incubated with amastigotes, and NET release was quantified in the culture supernatant. Amastigote viability was checked after incubation with NETs. We found that the release of NETs by neutrophils stimulated with these amastigotes requires the participation of elastase and peptidyl arginine deaminase and the involvement of PI3K, ROS, and calcium. Moreover, amastigotes are not susceptible to NET-mediated killing. Altogether, these findings improve our comprehension of the signaling pathways implicated in the interaction between amastigotes and human neutrophils.
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Affiliation(s)
- Thamara K F Oliveira
- Laboratório de Imunologia das Leishmanioses, Instituto de Microbiologia Paulo de Góes, Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil
| | - Jullyanna Oliveira-Silva
- Laboratório de Imunologia das Leishmanioses, Instituto de Microbiologia Paulo de Góes, Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil
| | - Leandra Linhares-Lacerda
- Laboratório de Imunologia das Leishmanioses, Instituto de Microbiologia Paulo de Góes, Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil
| | - Vanderlei da Silva Fraga-Junior
- Laboratório de Imunologia Molecular e Celular, Instituto de Biofísica Carlos Chagas Filho, Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil
| | - Claudia F Benjamim
- Laboratório de Imunologia Molecular e Celular, Instituto de Biofísica Carlos Chagas Filho, Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil
| | - Anderson B Guimaraes-Costa
- Laboratório de Imunologia das Leishmanioses, Instituto de Microbiologia Paulo de Góes, Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil
| | - Elvira M Saraiva
- Laboratório de Imunologia das Leishmanioses, Instituto de Microbiologia Paulo de Góes, Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil
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22
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Youn C, Pontaza C, Wang Y, Dikeman DA, Joyce DP, Alphonse MP, Wu MJ, Nolan SJ, Anany MA, Ahmadi M, Young J, Tocaj A, Garza LA, Wajant H, Miller LS, Archer NK. Neutrophil-intrinsic TNF receptor signaling orchestrates host defense against Staphylococcus aureus. SCIENCE ADVANCES 2023; 9:eadf8748. [PMID: 37327341 PMCID: PMC10275602 DOI: 10.1126/sciadv.adf8748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Accepted: 05/11/2023] [Indexed: 06/18/2023]
Abstract
Staphylococcus aureus is the leading cause of skin and soft tissue infections and is a major health burden due to the emergence of antibiotic-resistant strains. To address the unmet need of alternative treatments to antibiotics, a better understanding of the protective immune mechanisms against S. aureus skin infection is warranted. Here, we report that tumor necrosis factor (TNF) promoted protection against S. aureus in the skin, which was mediated by bone marrow-derived immune cells. Furthermore, neutrophil-intrinsic TNF receptor (TNFR) signaling directed immunity against S. aureus skin infections. Mechanistically, TNFR1 promoted neutrophil recruitment to the skin, whereas TNFR2 prevented systemic bacterial dissemination and directed neutrophil antimicrobial functions. Treatment with a TNFR2 agonist showed therapeutic efficacy against S. aureus and Pseudomonas aeruginosa skin infections, which involved increased neutrophil extracellular trap formation. Our findings revealed nonredundant roles for TNFR1 and TNFR2 in neutrophils for immunity against S. aureus and can be therapeutically targeted for protection against bacterial skin infections.
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Affiliation(s)
- Christine Youn
- Department of Dermatology, Johns Hopkins University School of Medicine, 1550 Orleans Street, Baltimore, MD 21287, USA
| | - Cristina Pontaza
- Department of Dermatology, Johns Hopkins University School of Medicine, 1550 Orleans Street, Baltimore, MD 21287, USA
| | - Yu Wang
- Department of Dermatology, Johns Hopkins University School of Medicine, 1550 Orleans Street, Baltimore, MD 21287, USA
| | - Dustin A. Dikeman
- Department of Dermatology, Johns Hopkins University School of Medicine, 1550 Orleans Street, Baltimore, MD 21287, USA
| | - Daniel P. Joyce
- Department of Dermatology, Johns Hopkins University School of Medicine, 1550 Orleans Street, Baltimore, MD 21287, USA
| | - Martin P. Alphonse
- Department of Dermatology, Johns Hopkins University School of Medicine, 1550 Orleans Street, Baltimore, MD 21287, USA
| | - Meng-Jen Wu
- Department of Dermatology, Johns Hopkins University School of Medicine, 1550 Orleans Street, Baltimore, MD 21287, USA
| | - Sabrina J. Nolan
- Department of Dermatology, Johns Hopkins University School of Medicine, 1550 Orleans Street, Baltimore, MD 21287, USA
| | - Mohamed A. Anany
- Division of Molecular Internal Medicine, Department of Internal Medicine II, University Hospital Würzburg, Würzburg 97080, Germany
- Department of Microbial Biotechnology, Institute of Biotechnology, National Research Center, El Buhouth Street, Dokki, 12622 Giza, Egypt
| | - Michael Ahmadi
- Department of Dermatology, Johns Hopkins University School of Medicine, 1550 Orleans Street, Baltimore, MD 21287, USA
| | - Jeremy Young
- Department of Dermatology, Johns Hopkins University School of Medicine, 1550 Orleans Street, Baltimore, MD 21287, USA
| | - Aron Tocaj
- Department of Dermatology, Johns Hopkins University School of Medicine, 1550 Orleans Street, Baltimore, MD 21287, USA
| | - Luis A. Garza
- Department of Dermatology, Johns Hopkins University School of Medicine, 1550 Orleans Street, Baltimore, MD 21287, USA
| | - Harald Wajant
- Division of Molecular Internal Medicine, Department of Internal Medicine II, University Hospital Würzburg, Würzburg 97080, Germany
| | - Lloyd S. Miller
- Department of Dermatology, Johns Hopkins University School of Medicine, 1550 Orleans Street, Baltimore, MD 21287, USA
| | - Nathan K. Archer
- Department of Dermatology, Johns Hopkins University School of Medicine, 1550 Orleans Street, Baltimore, MD 21287, USA
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23
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Vago JP, Zaidan I, Perucci LO, Brito LF, Teixeira LC, Silva CMS, Miranda TC, Melo EM, Bruno AS, Queiroz-Junior CM, Sugimoto MA, Tavares LP, Grossi LC, Borges IN, Schneider AH, Baik N, Schneider AH, Talvani A, Ferreira RG, Alves-Filho JC, Nobre V, Teixeira MM, Parmer RJ, Miles LA, Sousa LP. Plasmin and plasminogen prevent sepsis severity by reducing neutrophil extracellular traps and systemic inflammation. JCI Insight 2023; 8:e166044. [PMID: 36917195 PMCID: PMC10243804 DOI: 10.1172/jci.insight.166044] [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: 10/06/2022] [Accepted: 03/08/2023] [Indexed: 03/16/2023] Open
Abstract
Sepsis is a lethal syndrome characterized by systemic inflammation and abnormal coagulation. Despite therapeutic advances, sepsis mortality remains substantially high. Herein, we investigated the role of the plasminogen/plasmin (Plg/Pla) system during sepsis. Plasma levels of Plg were significantly lower in mice subjected to severe compared with nonsevere sepsis, whereas systemic levels of IL-6, a marker of sepsis severity, were higher in severe sepsis. Plg levels correlated negatively with IL-6 in both septic mice and patients, whereas plasminogen activator inhibitor-1 levels correlated positively with IL-6. Plg deficiency render mice susceptible to nonsevere sepsis induced by cecal ligation and puncture (CLP), resulting in greater numbers of neutrophils and M1 macrophages, liver fibrin(ogen) deposition, lower efferocytosis, and increased IL-6 and neutrophil extracellular trap (NET) release associated with organ damage. Conversely, inflammatory features, fibrin(ogen), and organ damage were substantially reduced, and efferocytosis was increased by exogenous Pla given during CLP- and LPS-induced endotoxemia. Plg or Pla protected mice from sepsis-induced lethality and enhanced the protective effect of antibiotics. Mechanistically, Plg/Pla-afforded protection was associated with regulation of NET release, requiring Pla-protease activity and lysine binding sites. Plg/Pla are important host-protective players during sepsis, controlling local and systemic inflammation and collateral organ damage.
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Affiliation(s)
- Juliana P. Vago
- Signaling in Inflammation Laboratory, Department of Clinical and Toxicological Analysis, Faculty of Pharmacy, and
- Department of Morphology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, California, USA
| | - Isabella Zaidan
- Signaling in Inflammation Laboratory, Department of Clinical and Toxicological Analysis, Faculty of Pharmacy, and
| | - Luiza O. Perucci
- Department of Biological Sciences, Universidade Federal de Ouro Preto, Ouro Preto, Brazil
| | - Larissa Froede Brito
- Signaling in Inflammation Laboratory, Department of Clinical and Toxicological Analysis, Faculty of Pharmacy, and
| | - Lívia C.R. Teixeira
- Signaling in Inflammation Laboratory, Department of Clinical and Toxicological Analysis, Faculty of Pharmacy, and
| | - Camila Meirelles Souza Silva
- Department of Pharmacology, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - Thaís C. Miranda
- Signaling in Inflammation Laboratory, Department of Clinical and Toxicological Analysis, Faculty of Pharmacy, and
| | - Eliza M. Melo
- Department of Biochemistry and Immunology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Alexandre S. Bruno
- Department of Pharmacology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Celso Martins Queiroz-Junior
- Department of Biochemistry and Immunology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Michelle A. Sugimoto
- Signaling in Inflammation Laboratory, Department of Clinical and Toxicological Analysis, Faculty of Pharmacy, and
- Department of Biochemistry and Immunology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Luciana P. Tavares
- Department of Biochemistry and Immunology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Laís C. Grossi
- Signaling in Inflammation Laboratory, Department of Clinical and Toxicological Analysis, Faculty of Pharmacy, and
| | - Isabela N. Borges
- Hospital of Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Ayda Henriques Schneider
- Department of Pharmacology, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - Nagyung Baik
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, California, USA
| | - Ayda H. Schneider
- Department of Pharmacology, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - André Talvani
- Department of Biological Sciences, Universidade Federal de Ouro Preto, Ouro Preto, Brazil
| | - Raphael G. Ferreira
- Department of Pharmacology, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - José C. Alves-Filho
- Department of Pharmacology, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - Vandack Nobre
- Hospital of Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Mauro M. Teixeira
- Department of Biochemistry and Immunology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Robert J. Parmer
- Department of Medicine, Veterans Administration San Diego Healthcare System and University of California, San Diego, California, USA
| | - Lindsey A. Miles
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, California, USA
| | - Lirlândia P. Sousa
- Signaling in Inflammation Laboratory, Department of Clinical and Toxicological Analysis, Faculty of Pharmacy, and
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Rejeski K, Blumenberg V, Iacoboni G, Lopez-Corral L, Kharboutli S, Hernani R, Petrera A, Müller N, Hildebrand F, Frölich L, Karschnia P, Schmidt C, Cordas dos Santos DM, Piñana JL, Müller F, Martin AA, Dreyling M, von Bergwelt-Baildon M, Barba P, Subklewe M, Bücklein VL. Identifying Early Infections in the Setting of CRS With Routine and Exploratory Serum Proteomics and the HT10 Score Following CD19 CAR-T for Relapsed/Refractory B-NHL. Hemasphere 2023; 7:e858. [PMID: 37038465 PMCID: PMC10082278 DOI: 10.1097/hs9.0000000000000858] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Accepted: 02/06/2023] [Indexed: 04/08/2023] Open
Abstract
Early fever after chimeric antigen receptor T-cell (CAR-T) therapy can reflect both an infection or cytokine release syndrome (CRS). Identifying early infections in the setting of CRS and neutropenia represents an unresolved clinical challenge. In this retrospective observational analysis, early fever events (day 0-30) were characterized as infection versus CRS in 62 patients treated with standard-of-care CD19.CAR-T for relapsed/refractory B-cell non-Hodgkin lymphoma. Routine serum inflammatory markers (C-reactive protein [CRP], interleukin-6 [IL-6], procalcitonin [PCT]) were recorded daily. Exploratory plasma proteomics were performed longitudinally in 52 patients using a multiplex proximity extension assay (Olink proteomics). Compared with the CRSonly cohort, we noted increased event-day IL-6 (median 2243 versus 64 pg/mL, P = 0.03) and particularly high PCT levels (median 1.6 versus 0.3 µg/L, P < 0.0001) in the patients that developed severe infections. For PCT, an optimal discriminatory threshold of 1.5 µg/L was established (area under the receiver operating characteristic curve [AUCROC] = 0.78). Next, we incorporated day-of-fever PCT levels with the patient-individual CAR-HEMATOTOX score. In a multicenter validation cohort (n = 125), we confirmed the discriminatory capacity of this so-called HT10 score for early infections at first fever (AUCROC = 0.87, P < 0.0001, sens. 86%, spec. 86%). Additionally, Olink proteomics revealed pronounced immune dysregulation and endothelial dysfunction in patients with severe infections as evidenced by an increased ANGPT2/1 ratio and an altered CD40/CD40L-axis. In conclusion, the high discriminatory capacity of the HT10 score for infections highlights the advantage of dynamic risk assessment and supports the incorporation of PCT into routine inflammatory panels. Candidate markers from Olink proteomics may further refine risk-stratification. If validated prospectively, the score will enable risk-adapted decisions on antibiotic use.
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25
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Efficacy and Safety of Interferon-Gamma in Chronic Granulomatous Disease: a Systematic Review and Meta-analysis. J Clin Immunol 2023; 43:578-584. [PMID: 36385358 DOI: 10.1007/s10875-022-01391-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Accepted: 10/20/2022] [Indexed: 11/17/2022]
Abstract
BACKGROUND Chronic granulomatous disease (CGD) is a primary immunodeficiency with increased susceptibility to several bacteria, fungi, and mycobacteria, caused by defective or null superoxide production by the NADPH oxidase enzymatic complex. Accepted treatment consists mainly of antimicrobial prophylaxis. The role of human recombinant subcutaneous interferon-gamma (IFNγ) is less clear since the available evidence on its efficacy derives mainly from a single clinical trial that has been challenged. OBJECTIVE We aimed to assess the efficacy and safety of IFNγ as an added treatment for CGD when compared to antimicrobial prophylaxis alone. METHODS A literature search was conducted using MeSH terms "Chronic granulomatous disease" AND ("interferon gamma" OR "interferon-gamma"), as well as antibiotics, placebo, no therapy, clinical trial, and trial, on MEDLINE, EMBASE, LILACS, WHOs, CENTRAL, KOREAMED, The Cochrane Library, clinicaltrials.gov, and abstracts from meetings, from 1976 to July 2022. We included clinical trials (CT) and prospective follow-up studies and registered the number of serious infections (requiring hospitalization and IV antibiotics) and deaths, adverse events, and autoimmune complications, in patients treated for CGD with antimicrobial prophylaxis plus IFN-γ, versus antimicrobial prophylaxis alone. We assessed the quality of the studies using risk of bias and STROBE. We performed a meta-analysis by calculating both Peto's odds ratio (OR) and risk reduction (RR) through the Mantel-Haenszel method with a fixed-effect model, using Review Manager 5.4, and we reported the number needed to treat (NNT). RESULTS We identified 54 matches from databases and 4 from other sources. We excluded 12 duplicates, 7 titles, and 9 abstracts for relevance, after which we had 30 eligible studies. Twenty-four were then excluded after reading the full text. Six papers were included: one randomized CT and 5 follow-up studies. In total, 324 patients with Chronic granulomatous disease were followed for 319 months under treatment with antibiotic prophylaxis plus interferon-gamma or placebo (or antibiotic prophylaxis alone), reported between the years 1991 and 2016. Three of the studies included a control group, allowing for the aggregate analysis of efficacy (prevention of serious infections). The aggregate OR was 0.49, with a 95% confidence interval of 0.19 to 1.23. The risk ratio for serious infection was 0.56 (95%CI 0.35-0.90) under IFN-γ. The meta-analysis thus favors interferon-gamma for a risk reduction of serious infection. DISCUSSION The results from this meta-analysis support the use of IFN-γ in the treatment of patients with CGD. However, we found insufficient clinical evidence and believe more clinical trials are needed to better assess the efficacy and long-term safety of IFN-γ.
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26
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Fan J, Jiang T, He D. Emerging insights into the role of ferroptosis in the pathogenesis of autoimmune diseases. Front Immunol 2023; 14:1120519. [PMID: 37063835 PMCID: PMC10097931 DOI: 10.3389/fimmu.2023.1120519] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2022] [Accepted: 03/17/2023] [Indexed: 04/01/2023] Open
Abstract
Ferroptosis, a novel type of regulated cell death mediated by iron-dependent lipid oxidation, was discovered a decade ago. Significant progress has been made in our knowledge of ferroptosis and immune dysfunction. This review covers recent advancements in the interaction of ferroptosis and the immune system, with an emphasis on autoimmune diseases. The critical regulators of ferroptosis are summarized in the context of reactive oxygen species biology, lipid metabolism, and iron homeostasis. The molecular crosstalk between ferroptosis and different immune cells is also highlighted. Future research is expected to yield new insights into the mechanisms governing ferroptosis and its potential therapeutic benefits in autoimmune diseases.
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Affiliation(s)
- Junyu Fan
- Department of Rheumatology, Guanghua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Department of Rheumatology, Shanghai Guanghua Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai, China
| | - Ting Jiang
- Department of Rheumatology, Guanghua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Department of Rheumatology, Shanghai Guanghua Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai, China
| | - Dongyi He
- Department of Rheumatology, Guanghua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Department of Rheumatology, Shanghai Guanghua Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai, China
- Institute of Arthritis Research in Integrative Medicine, Shanghai Academy of Traditional Chinese Medicine, Shanghai, China
- *Correspondence: Dongyi He,
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27
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Lv X, Tang W, Qin J, Wang W, Dong J, Wei Y. The crosslinks between ferroptosis and autophagy in asthma. Front Immunol 2023; 14:1140791. [PMID: 37063888 PMCID: PMC10090423 DOI: 10.3389/fimmu.2023.1140791] [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: 01/09/2023] [Accepted: 03/17/2023] [Indexed: 03/31/2023] Open
Abstract
Autophagy is an evolutionarily conserved cellular process capable of degrading various biological molecules and organelles via the lysosomal pathway. Ferroptosis is a type of oxidative stress-dependent regulated cell death associated with the iron accumulation and lipid peroxidation. The crosslinks between ferroptosis and autophagy have been focused on since the dependence of ferroptosis on autophagy was discovered. Although the research and theories on the relationship between autophagy and ferroptosis remain scattered and fragmented, the crosslinks between these two forms of regulated cell death are closely related to the treatment of various diseases. Thereof, asthma as a chronic inflammatory disease has a tight connection with the occurrence of ferroptosis and autophagy since the crosslinked signal pathways may be the crucial regulators or exactly regulated by cells and secretion in the immune system. In addition, non-immune cells associated with asthma are also closely related to autophagy and ferroptosis. Further studies of cross-linking asthma inflammation with crosslinked signaling pathways may provide us with several key molecules that regulate asthma through specific regulators. The crosslinks between autophagy and ferroptosis provide us with a new perspective to interpret and understand the manifestations of asthma, potential drug discovery targets, and new therapeutic options to effectively intervene in the imbalance caused by abnormal inflammation in asthma. Herein, we introduce the main molecular mechanisms of ferroptosis, autophagy, and asthma, describe the role of crosslinks between ferroptosis and autophagy in asthma based on their common regulatory cells or molecules, and discuss potential drug discovery targets and therapeutic applications in the context of immunomodulatory and symptom alleviation.
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Affiliation(s)
- Xiaodi Lv
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai, China
- Institutes of Integrative Medicine, Fudan University, Shanghai, China
| | - Weifeng Tang
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai, China
- Institutes of Integrative Medicine, Fudan University, Shanghai, China
| | - Jingjing Qin
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai, China
- Institutes of Integrative Medicine, Fudan University, Shanghai, China
| | - Wenqian Wang
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai, China
- Institutes of Integrative Medicine, Fudan University, Shanghai, China
| | - Jingcheng Dong
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai, China
- Institutes of Integrative Medicine, Fudan University, Shanghai, China
- *Correspondence: Ying Wei, ; Jingcheng Dong,
| | - Ying Wei
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai, China
- Institutes of Integrative Medicine, Fudan University, Shanghai, China
- *Correspondence: Ying Wei, ; Jingcheng Dong,
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28
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Sarden N, Yipp BG. Virus-associated fungal infections and lost immune resistance. Trends Immunol 2023; 44:305-318. [PMID: 36890064 DOI: 10.1016/j.it.2023.02.004] [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: 01/24/2023] [Revised: 02/13/2023] [Accepted: 02/14/2023] [Indexed: 03/08/2023]
Abstract
Invasive fungal infections are an increasing threat to human health. Of recent concern is the emergence of influenza- or SARS-CoV-2-virus-associated invasive fungal infections. Understanding acquired susceptibilities to fungi requires consideration of the collective and newly explored roles of adaptive, innate, and natural immunity. Neutrophils are known to provide host resistance, but new concepts are emerging that implicate innate antibodies, the actions of specialized B1 B cell subsets, and B cell-neutrophil crosstalk in mediating antifungal host resistance. Based on emerging evidence, we propose that virus infections impact on neutrophil and innate B cell resistance against fungi, leading to invasive infections. These concepts provide novel approaches to developing candidate therapeutics with the aim of restoring natural and humoral immunity and boosting neutrophil resistance against fungi.
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Affiliation(s)
- Nicole Sarden
- Calvin, Phoebe, and Joan Snyder Institute for Chronic Diseases, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada; Department of Critical Care Medicine, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Bryan G Yipp
- Calvin, Phoebe, and Joan Snyder Institute for Chronic Diseases, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada; Department of Critical Care Medicine, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.
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29
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Segal BH, Giridharan T, Suzuki S, Khan ANH, Zsiros E, Emmons TR, Yaffe MB, Gankema AAF, Hoogeboom M, Goetschalckx I, Matlung HL, Kuijpers TW. Neutrophil interactions with T cells, platelets, endothelial cells, and of course tumor cells. Immunol Rev 2023; 314:13-35. [PMID: 36527200 PMCID: PMC10174640 DOI: 10.1111/imr.13178] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Neutrophils sense microbes and host inflammatory mediators, and traffic to sites of infection where they direct a broad armamentarium of antimicrobial products against pathogens. Neutrophils are also activated by damage-associated molecular patterns (DAMPs), which are products of cellular injury that stimulate the innate immune system through pathways that are similar to those activated by microbes. Neutrophils and platelets become activated by injury, and cluster and cross-signal to each other with the cumulative effect of driving antimicrobial defense and hemostasis. In addition, neutrophil extracellular traps are extracellular chromatin and granular constituents that are generated in response to microbial and damage motifs and are pro-thrombotic and injurious. Although neutrophils can worsen tissue injury, neutrophils may also have a role in facilitating wound repair following injury. A central theme of this review relates to how critical functions of neutrophils that evolved to respond to infection and damage modulate the tumor microenvironment (TME) in ways that can promote or limit tumor progression. Neutrophils are reprogrammed by the TME, and, in turn, can cross-signal to tumor cells and reshape the immune landscape of tumors. Importantly, promising new therapeutic strategies have been developed to target neutrophil recruitment and function to make cancer immunotherapy more effective.
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Affiliation(s)
- Brahm H Segal
- Department of Internal Medicine, Roswell Park Comprehensive Cancer Center, Buffalo, New York, USA
- Department of Immunology, Roswell Park Comprehensive Cancer Center, Buffalo, New York, USA
- Department of Medicine, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, New York, USA
| | - Thejaswini Giridharan
- Department of Immunology, Roswell Park Comprehensive Cancer Center, Buffalo, New York, USA
| | - Sora Suzuki
- Department of Immunology, Roswell Park Comprehensive Cancer Center, Buffalo, New York, USA
| | - Anm Nazmul H Khan
- Department of Internal Medicine, Roswell Park Comprehensive Cancer Center, Buffalo, New York, USA
| | - Emese Zsiros
- Department of Gynecologic Oncology, Roswell Park Comprehensive Cancer Center, Buffalo, New York, USA
| | - Tiffany R Emmons
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
| | - Michael B Yaffe
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
- Surgical Oncology Program, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Angela A F Gankema
- Department of Molecular Hematology, Sanquin Research, University of Amsterdam, Amsterdam, The Netherlands
| | - Mark Hoogeboom
- Department of Molecular Hematology, Sanquin Research, University of Amsterdam, Amsterdam, The Netherlands
| | - Ines Goetschalckx
- Department of Molecular Hematology, Sanquin Research, University of Amsterdam, Amsterdam, The Netherlands
| | - Hanke L Matlung
- Department of Molecular Hematology, Sanquin Research, University of Amsterdam, Amsterdam, The Netherlands
| | - Taco W Kuijpers
- Department of Molecular Hematology, Sanquin Research, University of Amsterdam, Amsterdam, The Netherlands
- Department of Pediatric Immunology, Rheumatology and Infectious Disease, Emma Children's Hospital Amsterdam University Medical Center (Amsterdam UMC), University of Amsterdam, Amsterdam, The Netherlands
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30
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Uriarte SM, Hajishengallis G. Neutrophils in the periodontium: Interactions with pathogens and roles in tissue homeostasis and inflammation. Immunol Rev 2023; 314:93-110. [PMID: 36271881 PMCID: PMC10049968 DOI: 10.1111/imr.13152] [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] [Indexed: 11/28/2022]
Abstract
Neutrophils are of key importance in periodontal health and disease. In their absence or when they are functionally defective, as occurs in certain congenital disorders, affected individuals develop severe forms of periodontitis in early age. These observations imply that the presence of immune-competent neutrophils is essential to homeostasis. However, the presence of supernumerary or hyper-responsive neutrophils, either because of systemic priming or innate immune training, leads to imbalanced host-microbe interactions in the periodontium that culminate in dysbiosis and inflammatory tissue breakdown. These disease-provoking imbalanced interactions are further exacerbated by periodontal pathogens capable of subverting neutrophil responses to their microbial community's benefit and the host's detriment. This review attempts a synthesis of these findings for an integrated view of the neutrophils' ambivalent role in periodontal disease and, moreover, discusses how some of these concepts underpin the development of novel therapeutic approaches to treat periodontal disease.
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Affiliation(s)
- Silvia M. Uriarte
- Department of Oral Immunology and Infectious Diseases, School of Dentistry, University of Louisville, Louisville, KY, USA
| | - George Hajishengallis
- Department of Basic and Translational Sciences, Laboratory of Innate Immunity and Inflammation, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA, USA
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31
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Nunoi H, Nakamura H, Nishimura T, Matsukura M. Recent topics and advanced therapies in chronic granulomatous disease. Hum Cell 2023; 36:515-527. [PMID: 36534309 DOI: 10.1007/s13577-022-00846-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Accepted: 12/06/2022] [Indexed: 12/23/2022]
Abstract
Chronic granulomatous disease (CGD) is a primary immunodeficiency characterized by the inability of phagocytes to produce reactive oxygen species (ROS) owing to a defect in any of the five components (CYBB/gp91phox, CYBA/p22phox, NCF1/p47phox, NCF2/p67phox, and NCF4/p40phox) and a concomitant regulatory component of Rac1/2 and CYBC1/Eros of the nicotinamide adenine dinucleotide phosphate (NADPH) oxidase complex. Patients with CGD are at an increased risk of life-threatening infections caused by catalase-positive bacteria and fungi and of inflammatory complications such as CGD colitis. Antimicrobial and azole antifungal prophylaxes have considerably reduced the incidence and severity of bacterial and improved fungal infections and overall survival. CGD studies have revealed the precise epidemiology and role of NADPH oxidase in innate immunity which has led to a new understanding of the importance of phagocyte oxygen metabolism in various host-defense systems and the fields leading to cell death processes. Moreover, ROS plays central roles in the determination of cell fate as secondary messengers and by modifying of various signaling molecules. According to this increasing knowledge about the effects of ROS on the inflammasomal system, immunomodulatory treatments, such as IFN-γ and anti-IL-1 antibodies, have been established. This review covers the current topics in CGD and the relationship between ROS and ROS-mediated pathophysiological phenomena. In addition to the shirt summary of hematopoietic stem cell transplantation and gene therapy, we introduce a novel ROS-producing enzyme replacement therapy using PEG-fDAO to compensate for NADPH oxidase deficiency.
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Affiliation(s)
- Hiroyuki Nunoi
- Division of Pediatrics, Faculty of Medicine, University of Miyazaki, 5200 Kihara, Kiyotake-cho, Miyazaki-City, Miyazaki, 889-1692, Japan. .,Aisenkai Nichinan Hospital, 3649-2 Kazeta, Nichinan-City, Miyazaki, 887-0034, Japan.
| | - Hideki Nakamura
- Laboratory of Environmental Science and Technology, Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Nishi-Ku, Kumamoto City, 860-0082, Japan
| | - Toyoki Nishimura
- Division of Pediatrics, Faculty of Medicine, University of Miyazaki, 5200 Kihara, Kiyotake-cho, Miyazaki-City, Miyazaki, 889-1692, Japan
| | - Makoto Matsukura
- Laboratory of Clinical Pharmacology and Therapeutics, Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Nishi-Ku, Kumamoto City, 860-0082, Japan
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Stojkov D, Claus MJ, Kozlowski E, Oberson K, Schären OP, Benarafa C, Yousefi S, Simon HU. NET formation is independent of gasdermin D and pyroptotic cell death. Sci Signal 2023; 16:eabm0517. [PMID: 36693132 DOI: 10.1126/scisignal.abm0517] [Citation(s) in RCA: 21] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Neutrophil extracellular traps (NETs) are DNA scaffolds coated with granule proteins that are released by neutrophils to ensnare and kill bacteria. NET formation occurs in response to many stimuli through independent molecular pathways. Although NET release has been equated to a form of lytic cell death, live neutrophils can rapidly release antimicrobial NETs. Gasdermin D (GSDMD), which causes pyroptotic death in macrophages, is thought to be required for NET formation by neutrophils. Through experiments with known physiological activators of NET formation and ligands that activate canonical and noncanonical inflammasome signaling pathways, we demonstrated that Gsdmd-deficient mouse neutrophils were as competent as wild-type mouse neutrophils in producing NETs. Furthermore, GSDMD was not cleaved in wild-type neutrophils during NET release in response to inflammatory mediators. We found that activation of both canonical and noncanonical inflammasome signaling pathways resulted in GSDMD cleavage in wild-type neutrophils but was not associated with cell death. Moreover, NET formation as a result of either pathway of inflammasome activation did not require GSDMD. Together, these data suggest that NETs can be formed by viable neutrophils after inflammasome activation and that this function does not require GSDMD.
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Affiliation(s)
- Darko Stojkov
- Institute of Pharmacology, University of Bern, Bern, Switzerland
| | - Meike J Claus
- Institute of Pharmacology, University of Bern, Bern, Switzerland
| | | | - Kevin Oberson
- Institute of Pharmacology, University of Bern, Bern, Switzerland
| | - Olivier P Schären
- Institute for Infectious Diseases, University of Bern, Bern, Switzerland
| | - Charaf Benarafa
- Institute of Virology and Immunology, Mittelhäusern, Switzerland.,Department of Infectious Diseases and Pathology, Vetsuisse Faculty, University of Bern, Bern, Switzerland
| | - Shida Yousefi
- Institute of Pharmacology, University of Bern, Bern, Switzerland
| | - Hans-Uwe Simon
- Institute of Pharmacology, University of Bern, Bern, Switzerland.,Department of Clinical Immunology and Allergology, Sechenov University, Moscow, Russia.,Laboratory of Molecular Immunology, Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russia.,Institute of Biochemistry, Medical School Brandenburg, Neuruppin, Germany
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Li H, Liu L, Wang J, Zhao W. The emerging role of neutrophil extracellular traps in endometritis. Front Immunol 2023; 14:1153851. [PMID: 37033951 PMCID: PMC10073465 DOI: 10.3389/fimmu.2023.1153851] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Accepted: 03/01/2023] [Indexed: 04/11/2023] Open
Abstract
Endometritis is a kind of common obstetric disease in women, usually caused by various pathogenic bacteria. Neutrophil infiltration is one of the most important pathological features of endometritis. Neutrophils can reach the uterine cavity through the endometrium, and make early response to the infection caused by the pathogen. Neutrophil extracellular traps (NETs), a meshwork of chromatin fibers extruded by neutrophils, have a role in entrapping microbial pathogens. It has been confirmed that NETs have a strong antibacterial effect and play crucial roles in the occurrence and development of various diseases. However, while killing pathogenic bacteria, excessive NETs formation may cause immune damage to the body. NETs are present in endometrium of female domestic animals in different physiological periods, especially post-mating, postpartum and in the presence of lesions, especially in endometritis. Meanwhile, NETs and its products might contribute to a reduction in physical clearance and persistent endometritis. In brief, NETs is a double-edged sword and it may play a different role in the development of endometritis, which may be beneficial or harmful, and its specific mechanism needs further study. Here we provide an overview of the role of NETs in the development of endometritis and the regulatory role of selenium on NETs formation and endometritis.
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Affiliation(s)
- Hongyan Li
- Department of Urology, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Ling Liu
- Department of Pediatrics, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
| | - Junrong Wang
- Department of Obstetrics and Gynecology, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
| | - Weiliang Zhao
- Department of Anesthesiology, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
- *Correspondence: Weiliang Zhao,
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Recent Insights into Neutrophil Extracellular Traps in Cardiovascular Diseases. J Clin Med 2022; 11:jcm11226662. [PMID: 36431139 PMCID: PMC9698501 DOI: 10.3390/jcm11226662] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 11/07/2022] [Accepted: 11/08/2022] [Indexed: 11/13/2022] Open
Abstract
Neutrophils are primary effector cells of the innate immune system. Emerging evidence has consistently shown that activated neutrophils produce and release neutrophil extracellular traps (NETs) that play roles in immunity and non-infectious diseases. NETs are composed of DNA and proteins and serve as a structural platform for pathogen sequestration and degradation. In contrast to their protective role during pathogenic infection, NETs are pathologically involved in cardiovascular disease (CVD). In this review, we introduce the formation, release, and clearance of NETs and the regulatory mechanisms of NETs formation, followed by an overview of the clinical evidence for the involvement of NETs in CVD. Because atherosclerosis is a fundamental part of the pathogenesis of CVD, we chose to focus on the mechanisms by which NETs promote endothelial cell damage and collaborate with macrophages and platelets to accelerate plaque progression and thrombosis. Finally, we present options for clinical intervention to inhibit NETs production and release in the treatment of CVD. In conclusion, this review integrates the latest findings and provides new insights into NETs, which represent a novel biomarker and therapeutic target in clinical practice.
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35
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Chen H, Xu X, Tang Q, Ni L, Cao S, Hao Y, Wang L, Hu X. (+)-Borneol inhibits the generation of reactive oxygen species and neutrophil extracellular traps induced by phorbol-12-myristate-13-acetate. Front Pharmacol 2022; 13:1023450. [PMID: 36419617 PMCID: PMC9676272 DOI: 10.3389/fphar.2022.1023450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Accepted: 10/19/2022] [Indexed: 11/09/2022] Open
Abstract
Background and purpose: Neutrophil extracellular traps (NETs) are special web-like structures that can be generated in both infectious and noninfectious diseases. Previous studies showed that reactive oxygen species (ROS) were crucial in the formation of NETs (NETosis). The purpose of this study is to evaluate the effect of (+)-borneol, an antioxidant, on NETosis. Methods: Human neutrophils were stimulated with phorbol-12-myristate-13-acetate (PMA) to induce NETosis in vitro. Neutrophils treated with (+)-borneol at three different time points (−30 min, 0, and 30 min) associated with PMA stimulation were used to examine the effect of (+)-borneol on the formation of NETs. The ROS generation of neutrophils was also measured to explore the potential mechanism of the inhibitory effect of (+)-borneol on NETosis. Results: (+)-Borneol pretreatment inhibited NETosis induced by PMA. Immunofluorescence staining visualized and confirmed the inhibitory effect. (+)-Borneol inhibited the burst of ROS in neutrophils caused by PMA. Suppressing NADPH oxidase or protein kinase C (PKC) eliminated the effect of (+)-borneol on NETosis. Moreover, inhibiting Toll-like receptor 2 (TLR2) led to increased NETosis which can be inhibited by (+)-borneol. Conclusion: (+)-Borneol decreases the ROS level in activated neutrophils and inhibits NETosis triggered by PMA stimulation in vitro. (+)-Borneol therapy may be effective in some NET-dependent conditions.
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Affiliation(s)
- Hanze Chen
- Department of Neurology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Xinxin Xu
- Department of Neurology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Qiwen Tang
- Department of Neurology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Linhui Ni
- Department of Neurology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Shuxia Cao
- Department of Neurology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Yonggang Hao
- Department of Neurology, Dushu Lake Hospital Affiliated to Soochow University, Suzhou, China
| | - Li Wang
- Department of Neurology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- *Correspondence: Li Wang, ; Xingyue Hu,
| | - Xingyue Hu
- Department of Neurology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- *Correspondence: Li Wang, ; Xingyue Hu,
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Peng S, Gao J, Stojkov D, Yousefi S, Simon H. Established and emerging roles for mitochondria in neutrophils. Immunol Rev 2022; 314:413-426. [PMID: 36331270 DOI: 10.1111/imr.13158] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Neutrophils are the most abundant innate immune cells in human blood, emerging as important players in a variety of diseases. Mitochondria are bioenergetic, biosynthetic, and signaling organelles critical for cell fate and function. Mitochondria have been overlooked in neutrophil research owing to the conventional view that neutrophils contain few, if any, competent mitochondria and do not rely on these organelles for adenosine triphosphate production. A growing body of evidence suggests that mitochondria participate in neutrophil biology at many levels, ranging from neutrophil development to chemotaxis, effector function, and cell death. Moreover, mitochondria and mitochondrial components, such as mitochondrial deoxyribonucleic acid, can be released by neutrophils to eliminate infection and/or shape immune response, depending on the specific context. In this review, we provide an update on the functional role of mitochondria in neutrophils, highlight mitochondria as key players in modulating the neutrophil phenotype and function during infection and inflammation, and discuss the possibilities and challenges to exploit the unique aspects of mitochondria in neutrophils for disease treatment.
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Affiliation(s)
- Shuang Peng
- Institute of Pharmacology University of Bern Bern Switzerland
| | - Jian Gao
- Department of Molecular and Cellular Oncology The University of Texas MD Anderson Cancer Center Houston Texas USA
| | - Darko Stojkov
- Institute of Pharmacology University of Bern Bern Switzerland
| | - Shida Yousefi
- Institute of Pharmacology University of Bern Bern Switzerland
| | - Hans‐Uwe Simon
- Institute of Pharmacology University of Bern Bern Switzerland
- Department of Clinical Immunology and Allergology Sechenov University Moscow Russia
- Laboratory of Molecular Immunology, Institute of Fundamental Medicine and Biology Kazan Federal University Kazan Russia
- Institute of Biochemistry, Brandenburg Medical School Neuruppin Germany
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Schoen J, Euler M, Schauer C, Schett G, Herrmann M, Knopf J, Yaykasli KO. Neutrophils' Extracellular Trap Mechanisms: From Physiology to Pathology. Int J Mol Sci 2022; 23:12855. [PMID: 36361646 PMCID: PMC9653572 DOI: 10.3390/ijms232112855] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 10/20/2022] [Accepted: 10/21/2022] [Indexed: 07/30/2023] Open
Abstract
Neutrophils are an essential part of the innate immune system and the first line of defense against invading pathogens. They phagocytose, release granular contents, produce reactive oxygen species, and form neutrophil extracellular traps (NETs) to fight pathogens. With the characterization of NETs and their components, neutrophils were identified as players of the innate adaptive crosstalk. This has placed NETs at the center not only of physiological but also pathological processes. Aside from their role in pathogen uptake and clearance, NETs have been demonstrated to contribute to the resolution of inflammation by forming aggregated NETs able to degrade inflammatory mediators. On the other hand, NETs have the potential to foster severe pathological conditions. When homeostasis is disrupted, they occlude vessels and ducts, serve as sources of autoantigens and danger or damage associated molecular patterns, directly damage tissues, and exaggerate complement activity and inflammation. This review focusses on the understanding of NETs from their formation to their functions in both physiological and pathological processes.
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Affiliation(s)
- Janina Schoen
- Department of Internal Medicine 3—Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, 91054 Erlangen, Germany
- Deutsches Zentrum für Immuntherapie (DZI), Friedrich-Alexander-University Erlangen-Nürnberg and Universitätsklinikum Erlangen, 91054 Erlangen, Germany
| | - Maximilien Euler
- Department of Internal Medicine 3—Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, 91054 Erlangen, Germany
- Deutsches Zentrum für Immuntherapie (DZI), Friedrich-Alexander-University Erlangen-Nürnberg and Universitätsklinikum Erlangen, 91054 Erlangen, Germany
| | - Christine Schauer
- Department of Internal Medicine 3—Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, 91054 Erlangen, Germany
- Deutsches Zentrum für Immuntherapie (DZI), Friedrich-Alexander-University Erlangen-Nürnberg and Universitätsklinikum Erlangen, 91054 Erlangen, Germany
| | - Georg Schett
- Department of Internal Medicine 3—Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, 91054 Erlangen, Germany
- Deutsches Zentrum für Immuntherapie (DZI), Friedrich-Alexander-University Erlangen-Nürnberg and Universitätsklinikum Erlangen, 91054 Erlangen, Germany
| | - Martin Herrmann
- Department of Internal Medicine 3—Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, 91054 Erlangen, Germany
- Deutsches Zentrum für Immuntherapie (DZI), Friedrich-Alexander-University Erlangen-Nürnberg and Universitätsklinikum Erlangen, 91054 Erlangen, Germany
| | - Jasmin Knopf
- Department of Internal Medicine 3—Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, 91054 Erlangen, Germany
- Deutsches Zentrum für Immuntherapie (DZI), Friedrich-Alexander-University Erlangen-Nürnberg and Universitätsklinikum Erlangen, 91054 Erlangen, Germany
| | - Kursat Oguz Yaykasli
- Department of Internal Medicine 3—Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, 91054 Erlangen, Germany
- Deutsches Zentrum für Immuntherapie (DZI), Friedrich-Alexander-University Erlangen-Nürnberg and Universitätsklinikum Erlangen, 91054 Erlangen, Germany
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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: 100] [Impact Index Per Article: 50.0] [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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39
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Niyonsaba F. Editorial: The role of neutrophils and its NETosis in autoimmunity and autoinflammation. Front Immunol 2022; 13:1035624. [DOI: 10.3389/fimmu.2022.1035624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Accepted: 09/12/2022] [Indexed: 11/13/2022] Open
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40
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Zhong H, Lu RY, Wang Y. Neutrophil extracellular traps in fungal infections: A seesaw battle in hosts. Front Immunol 2022; 13:977493. [PMID: 36189199 PMCID: PMC9515532 DOI: 10.3389/fimmu.2022.977493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Accepted: 08/24/2022] [Indexed: 11/13/2022] Open
Abstract
Fungal infections are a growing health care challenge. Neutrophils play a key role in defense against fungal infections. There are many effective ways for neutrophils to eliminate fungal invaders, such as phagocytosis, oxidative bursts, and the formation of extracellular traps. This process has received considerable attention and has made rapid progress since neutrophil extracellular traps (NETs) formation was described. Here, we describe the formation, induction, and function of NETs, as well as fungal strategies against NETs hunting. We highlight the effects of NETs on common fungal pathogens and how these pathogens survive.
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41
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Liang C, Lian N, Li M. The emerging role of neutrophil extracellular traps in fungal infection. Front Cell Infect Microbiol 2022; 12:900895. [PMID: 36034717 PMCID: PMC9411525 DOI: 10.3389/fcimb.2022.900895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 07/25/2022] [Indexed: 11/13/2022] Open
Abstract
Fungal infections are global public health problems and can lead to substantial human morbidity and mortality. Current antifungal therapy is not satisfactory, especially for invasive, life-threatening fungal infections. Modulating the antifungal capacity of the host immune system is a feasible way to combat fungal infections. Neutrophils are key components of the innate immune system that resist fungal pathogens by releasing reticular extracellular structures called neutrophil extracellular traps (NETs). When compared with phagocytosis and oxidative burst, NETs show better capability in terms of trapping large pathogens, such as fungi. This review will summarize interactions between fungal pathogens and NETs. Molecular mechanisms of fungi-induced NETs formation and defensive strategies used by fungi are also discussed.
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Affiliation(s)
- Chuting Liang
- Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and Sexually Transmitted Infections (STIs), Chinese Academy of Medical Sciences and Peking Union Medical College, Institute of Dermatology, Nanjing, China
| | - Ni Lian
- Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and Sexually Transmitted Infections (STIs), Chinese Academy of Medical Sciences and Peking Union Medical College, Institute of Dermatology, Nanjing, China
| | - Min Li
- Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and Sexually Transmitted Infections (STIs), Chinese Academy of Medical Sciences and Peking Union Medical College, Institute of Dermatology, Nanjing, China
- Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
- *Correspondence: Min Li,
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42
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Feng X, Song Y, Sun Z, Loor JJ, Jiang Q, Gao C, Liu S, Yang Y, Du X, Wang Z, Liu G, Li X. Palmitic acid hinders extracellular traps of neutrophil from postpartum dairy cow in vitro. J Dairy Sci 2022; 105:8286-8297. [PMID: 35965126 DOI: 10.3168/jds.2021-21405] [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: 10/09/2021] [Accepted: 05/12/2022] [Indexed: 11/19/2022]
Abstract
Peripartum dairy cows experience negative energy balance, characterized by high concentrations of blood free fatty acids (FFA) and immune dysfunction. Palmitic acid (PA), the most abundant saturated fatty acid in cow blood, is not only an energy precursor, but causes cellular dysfunction when in excess. Neutrophil extracellular traps (NET) are one of the arsenals of weapons neutrophils use to fight invading pathogens. However, given the marked increase in circulating PA during the peripartum period, it remains to be determined what effect (if any) PA has on NET release. Thus, the objective of this study was to evaluate the effect of PA on NET release and the underlying mechanism in vitro. Phorbol-12-myristate-13-acetate (PMA; 100 ng/mL, 3 h) was used to induce the release of NET in vitro. We isolated neutrophils from the peripheral blood of 5 healthy postpartum dairy cows with similar parity (median = 3, range = 2-4), milk yield (median = 27.84 kg/d per cow, range = 25.79-31.43 kg/d per cow), days in milk (median = 7 d, range = 4-10 d), and serum FFA <0.25 mM, β-hydroxybutyric acid <0.6 mM, and glucose >3.5 mM. Inhibition of double-stranded DNA (dsDNA) level, a marker of NET release, in response to PA was used to determine an optimal incubation time and concentration for in vitro experiments. Cells were maintained in RPMI-1640 basic medium without phenol red, treated with 600 μM PA for different times (4, 5, 6, and 7 h) in the presence or absence of PMA. There was a decrease for dsDNA level in the supernatant due to increased duration of PA treatment, with a peak response at 6 h. Thus, 6 h was selected as the challenge time. Then, cells were treated with different concentrations of PA (100, 200, 400, and 600 μM) for 6 h in the presence or absence of PMA. There was a decrease for dsDNA level in the supernatant due to increased dose of PA, with a peak response at 400 μM. Finally, 400 μM PA for 6 h was selected as the treatment for subsequent experiments. Protein abundance of citrullinated histone in the presence or absence of PMA was markedly lower in response to incubation with PA. Morphological observations by laser confocal microscopy and scanning electron microscopy showed that the ratio of NET-releasing cells decreased in response to incubation with PA. Autophagy is a potential key intermediate process in the regulation of NET by PA. To investigate the effect of PA on autophagy, we used chloroquine to block lysosomal degradation. Exogenous PA led to accumulation of sequestosome-1 and microtubule-associated protein 1 light chain 3-II, and no further accumulation in the presence of chloroquine, all of which suggested an impairment of autophagic flux. To verify the role of autophagy in NET, we used rapamycin to promote autophagic flux; 100 nM rapamycin attenuated the suppressive effect of PA on NET release indicated by greater dsDNA levels, accumulation of citrullinated histone, and ratio of NET-releasing neutrophils. Overall, these data demonstrate PA inhibits NET release by suppressing autophagic flux, which provides information for understanding the immune dysfunction in postpartum cows.
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Affiliation(s)
- Xiancheng Feng
- State Key Laboratory for Zoonotic Diseases, Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, 5333 Xi'an Road, Changchun, Jilin Province, 130062, China
| | - Yuxiang Song
- State Key Laboratory for Zoonotic Diseases, Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, 5333 Xi'an Road, Changchun, Jilin Province, 130062, China
| | - Zhen'ai Sun
- State Key Laboratory for Zoonotic Diseases, Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, 5333 Xi'an Road, Changchun, Jilin Province, 130062, China
| | - Juan J Loor
- Mammalian NutriPhysioGenomics, Department of Animal Sciences and Division of Nutritional Sciences, University of Illinois, Urbana 61801
| | - Qianming Jiang
- Mammalian NutriPhysioGenomics, Department of Animal Sciences and Division of Nutritional Sciences, University of Illinois, Urbana 61801
| | - Chen Gao
- Experiment Management Center, Dezhou University, Dezhou, Shandong Province, 253000, China
| | - Siyuan Liu
- State Key Laboratory for Zoonotic Diseases, Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, 5333 Xi'an Road, Changchun, Jilin Province, 130062, China
| | - Yuchen Yang
- State Key Laboratory for Zoonotic Diseases, Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, 5333 Xi'an Road, Changchun, Jilin Province, 130062, China
| | - Xiliang Du
- State Key Laboratory for Zoonotic Diseases, Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, 5333 Xi'an Road, Changchun, Jilin Province, 130062, China
| | - Zhe Wang
- State Key Laboratory for Zoonotic Diseases, Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, 5333 Xi'an Road, Changchun, Jilin Province, 130062, China
| | - Guowen Liu
- State Key Laboratory for Zoonotic Diseases, Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, 5333 Xi'an Road, Changchun, Jilin Province, 130062, China.
| | - Xinwei Li
- State Key Laboratory for Zoonotic Diseases, Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, 5333 Xi'an Road, Changchun, Jilin Province, 130062, China.
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Palamenghi M, De Luca M, De Rosa L. The steep uphill path leading to ex vivo gene therapy for genodermatoses. Am J Physiol Cell Physiol 2022; 323:C896-C906. [PMID: 35912986 DOI: 10.1152/ajpcell.00117.2022] [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: 11/22/2022]
Abstract
Cell therapy, gene therapy and tissue engineering have the potential to revolutionize the field of regenerative medicine. In particular, gene therapy is understood as the therapeutical correction of mutated genes by addition of a correct copy of the gene or site-specific gene modifications. Gene correction of somatic stem cells sustaining renewing tissues is critical to ensure long-term clinical success of ex vivo gene therapy. To date, remarkable clinical outcomes arose from combined ex vivo cell and gene therapy of different genetic diseases, such as immunodeficiencies and genodermatoses. Despite the efforts of researchers around the world, only few of these advanced approaches has yet made it to routine therapy. In fact, gene therapy poses one of the greatest technical challenges in modern medicine, spanning safety and efficacy issues, regulatory constraints, registration and market access, all of which need to be addressed to make the therapy available to rare disease patients. In this review, we survey at some of the main challenges in the development of combined cell and gene therapy of genetic skin diseases.
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Affiliation(s)
- Michele Palamenghi
- Centre for Regenerative Medicine "Stefano Ferrari", University of Modena and Reggio Emilia, Modena, Italy
| | - Michele De Luca
- Centre for Regenerative Medicine "Stefano Ferrari", University of Modena and Reggio Emilia, Modena, Italy
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A Fun-Guide to Innate Immune Responses to Fungal Infections. J Fungi (Basel) 2022; 8:jof8080805. [PMID: 36012793 PMCID: PMC9409918 DOI: 10.3390/jof8080805] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 07/26/2022] [Accepted: 07/28/2022] [Indexed: 11/22/2022] Open
Abstract
Immunocompromised individuals are at high risk of developing severe fungal infections with high mortality rates, while fungal pathogens pose little risk to most healthy people. Poor therapeutic outcomes and growing antifungal resistance pose further challenges for treatments. Identifying specific immunomodulatory mechanisms exploited by fungal pathogens is critical for our understanding of fungal diseases and development of new therapies. A gap currently exists between the large body of literature concerning the innate immune response to fungal infections and the potential manipulation of host immune responses to aid clearance of infection. This review considers the innate immune mechanisms the host deploys to prevent fungal infection and how these mechanisms fail in immunocompromised hosts. Three clinically relevant fungal pathogens (Candida albicans, Cryptococcus spp. and Aspergillus spp.) will be explored. This review will also examine potential mechanisms of targeting the host therapeutically to improve outcomes of fungal infection.
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Chen F, Liu Y, Shi Y, Zhang J, Liu X, Liu Z, Lv J, Leng Y. The emerging role of neutrophilic extracellular traps in intestinal disease. Gut Pathog 2022; 14:27. [PMID: 35733158 PMCID: PMC9214684 DOI: 10.1186/s13099-022-00497-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2021] [Accepted: 05/19/2022] [Indexed: 11/10/2022] Open
Abstract
Neutrophil extracellular traps (NETs) are extracellular reticular fibrillar structures composed of DNA, histones, granulins and cytoplasmic proteins that are delivered externally by neutrophils in response to stimulation with various types of microorganisms, cytokines and host molecules, etc. NET formation has been extensively demonstrated to trap, immobilize, inactivate and kill invading microorganisms and acts as a form of innate response against pathogenic invasion. However, NETs are a double-edged sword. In the event of imbalance between NET formation and clearance, excessive NETs not only directly inflict tissue lesions, but also recruit pro-inflammatory cells or proteins that promote the release of inflammatory factors and magnify the inflammatory response further, driving the progression of many human diseases. The deleterious effects of excessive release of NETs on gut diseases are particularly crucial as NETs are more likely to be disrupted by neutrophils infiltrating the intestinal epithelium during intestinal disorders, leading to intestinal injury, and in addition, NETs and their relevant molecules are capable of directly triggering the death of intestinal epithelial cells. Within this context, a large number of NETs have been reported in several intestinal diseases, including intestinal infections, inflammatory bowel disease, intestinal ischemia–reperfusion injury, sepsis, necrotizing enterocolitis, and colorectal cancer. Therefore, the formation of NET would have to be strictly monitored to prevent their mediated tissue damage. In this review, we summarize the latest knowledge on the formation mechanisms of NETs and their pathophysiological roles in a variety of intestinal diseases, with the aim of providing an essential directional guidance and theoretical basis for clinical interventions in the exploration of mechanisms underlying NETs and targeted therapies.
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Affiliation(s)
- Feng Chen
- The First Clinical Medical College of Lanzhou University, Lanzhou, 730000, Gansu, People's Republic of China
| | - Yongqiang Liu
- The First Clinical Medical College of Lanzhou University, Lanzhou, 730000, Gansu, People's Republic of China.,Department of Anesthesiology, First Hospital of Lanzhou University, Lanzhou, 730000, Gansu, People's Republic of China
| | - Yajing Shi
- The First Clinical Medical College of Lanzhou University, Lanzhou, 730000, Gansu, People's Republic of China
| | - Jianmin Zhang
- The First Clinical Medical College of Lanzhou University, Lanzhou, 730000, Gansu, People's Republic of China
| | - Xin Liu
- The First Clinical Medical College of Lanzhou University, Lanzhou, 730000, Gansu, People's Republic of China.,Department of Anesthesiology, First Hospital of Lanzhou University, Lanzhou, 730000, Gansu, People's Republic of China
| | - Zhenzhen Liu
- The First Clinical Medical College of Lanzhou University, Lanzhou, 730000, Gansu, People's Republic of China
| | - Jipeng Lv
- The First Clinical Medical College of Lanzhou University, Lanzhou, 730000, Gansu, People's Republic of China
| | - Yufang Leng
- The First Clinical Medical College of Lanzhou University, Lanzhou, 730000, Gansu, People's Republic of China. .,Department of Anesthesiology, First Hospital of Lanzhou University, Lanzhou, 730000, Gansu, People's Republic of China.
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Wang X, Fan D, Cao X, Ye Q, Wang Q, Zhang M, Xiao C. The Role of Reactive Oxygen Species in the Rheumatoid Arthritis-Associated Synovial Microenvironment. Antioxidants (Basel) 2022; 11:antiox11061153. [PMID: 35740050 PMCID: PMC9220354 DOI: 10.3390/antiox11061153] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 06/06/2022] [Accepted: 06/09/2022] [Indexed: 12/21/2022] Open
Abstract
Rheumatoid arthritis (RA) is an inflammatory disease that begins with a loss of tolerance to modified self-antigens and immune system abnormalities, eventually leading to synovitis and bone and cartilage degradation. Reactive oxygen species (ROS) are commonly used as destructive or modifying agents of cellular components or they act as signaling molecules in the immune system. During the development of RA, a hypoxic and inflammatory situation in the synovium maintains ROS generation, which can be sustained by increased DNA damage and malfunctioning mitochondria in a feedback loop. Oxidative stress caused by abundant ROS production has also been shown to be associated with synovitis in RA. The goal of this review is to examine the functions of ROS and related molecular mechanisms in diverse cells in the synovial microenvironment of RA. The strategies relying on regulating ROS to treat RA are also reviewed.
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Affiliation(s)
- Xing Wang
- School of Clinical Medicine, China-Japan Friendship Hospital, Beijing University of Chinese Medicine, Beijing 100029, China; (X.W.); (Q.Y.); (Q.W.)
- Institute of Clinical Medicine, China-Japan Friendship Hospital, Beijing 100029, China; (D.F.); (X.C.); (M.Z.)
| | - Danping Fan
- Institute of Clinical Medicine, China-Japan Friendship Hospital, Beijing 100029, China; (D.F.); (X.C.); (M.Z.)
- Graduate School of Peking Union Medical College, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China
| | - Xiaoxue Cao
- Institute of Clinical Medicine, China-Japan Friendship Hospital, Beijing 100029, China; (D.F.); (X.C.); (M.Z.)
- Graduate School of Peking Union Medical College, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China
| | - Qinbin Ye
- School of Clinical Medicine, China-Japan Friendship Hospital, Beijing University of Chinese Medicine, Beijing 100029, China; (X.W.); (Q.Y.); (Q.W.)
- Institute of Clinical Medicine, China-Japan Friendship Hospital, Beijing 100029, China; (D.F.); (X.C.); (M.Z.)
| | - Qiong Wang
- School of Clinical Medicine, China-Japan Friendship Hospital, Beijing University of Chinese Medicine, Beijing 100029, China; (X.W.); (Q.Y.); (Q.W.)
- Institute of Clinical Medicine, China-Japan Friendship Hospital, Beijing 100029, China; (D.F.); (X.C.); (M.Z.)
| | - Mengxiao Zhang
- Institute of Clinical Medicine, China-Japan Friendship Hospital, Beijing 100029, China; (D.F.); (X.C.); (M.Z.)
| | - Cheng Xiao
- Institute of Clinical Medicine, China-Japan Friendship Hospital, Beijing 100029, China; (D.F.); (X.C.); (M.Z.)
- Department of Emergency, China-Japan Friendship Hospital, Beijing 100029, China
- Correspondence: or
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Zhu H, Yu Q, Ouyang H, Zhang R, Li J, Xian R, Wang K, Li X, Cao C. Antagonistic Effect of Selenium on Fumonisin B1 Promotes Neutrophil Extracellular Traps Formation in Chicken Neutrophils. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:5911-5920. [PMID: 35535747 DOI: 10.1021/acs.jafc.2c01329] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Neutrophils are an important component of the innate immune system, and one of their defense mechanisms, neutrophil extracellular traps (NETs), is a hot topic of the current research. This study explored the effects of fumonisin B1 (FB1) on chicken neutrophil production of NETs and its possible molecular mechanism of action. Scanning electron microscopy and fluorescence microscopy were used to observe morphological changes in neutrophils, and a fluorescence microplate reader was used to detect reactive oxygen species (ROS) and extracellular DNA release from neutrophils. Quantitative PCR (qPCR) and western blot were used to determine the expression levels of selenoproteins. The results indicate that FB1 inhibited the zymosan-induced formation of NETs in chicken neutrophils by preventing ROS burst and histone H3 (H3) and neutrophil elastase (NE) release. Moreover, the mRNA expression levels of glutathione peroxidase (GPX), thioredoxin reductase (TXNRD), and deiodinase (DIO) were downregulated in the FB1 group. The protein expression levels of GPX1, GPX2, GPX3, DIO3, and TXNRD1 were consistent with the changes in their gene expressions, suggesting an abnormal selenoprotein expression in response to the toxic effects of FB1. Conversely, selenium (Se) supplementation reduced the toxic effects of FB1 and restored the NETs formation, indicating that Se can be used as a potential drug to prevent and control FB1 toxicity in livestock farming.
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Affiliation(s)
- Huquan Zhu
- School of Life Sciences and Engineering, Foshan University, Foshan 528225, Guangdong, China
| | - Qinfang Yu
- School of Life Sciences and Engineering, Foshan University, Foshan 528225, Guangdong, China
| | - Huimin Ouyang
- School of Life Sciences and Engineering, Foshan University, Foshan 528225, Guangdong, China
| | - Ruofan Zhang
- School of Life Sciences and Engineering, Foshan University, Foshan 528225, Guangdong, China
| | - Jinhong Li
- School of Life Sciences and Engineering, Foshan University, Foshan 528225, Guangdong, China
| | - Runxi Xian
- School of Life Sciences and Engineering, Foshan University, Foshan 528225, Guangdong, China
| | - Kai Wang
- School of Life Sciences and Engineering, Foshan University, Foshan 528225, Guangdong, China
| | - Xinran Li
- School of Life Sciences and Engineering, Foshan University, Foshan 528225, Guangdong, China
- Foshan University Veterinary Teaching Hospital, Foshan 528225, Guangdong, China
| | - Changyu Cao
- School of Life Sciences and Engineering, Foshan University, Foshan 528225, Guangdong, China
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Shen W, Oladejo AO, Ma X, Jiang W, Zheng J, Imam BH, Wang S, Wu X, Ding X, Ma B, Yan Z. Inhibition of Neutrophil Extracellular Traps Formation by Cl-Amidine Alleviates Lipopolysaccharide-Induced Endometritis and Uterine Tissue Damage. Animals (Basel) 2022; 12:1151. [PMID: 35565576 PMCID: PMC9100562 DOI: 10.3390/ani12091151] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 04/17/2022] [Accepted: 04/27/2022] [Indexed: 02/05/2023] Open
Abstract
Endometritis is a common disease that affects the production in dairy cows and leads to severe losses in the dairy industry. Neutrophil extracellular traps (NETs) formation promotes pathogenic invasions of the lumen of the tissue, leading to inflammatory diseases such as mastitis, pancreatitis, and septic infection. However, research that could show the relationship between NETs and endometritis is scarce. Cl-amidine has been shown to ameliorate the disease squealing and clinical manifestation in various disease models. In this study, we investigated the role of NETs in LPS-triggered endometritis in rats and evaluated the therapeutic efficiency of Cl-amidine. An LPS-induced endometritis model in rats was established and found that the formation of NETs can be detected in the rat's uterine tissues in vivo. In addition, Cl-amidine treatment can inhibit NETs construction in LPS-induced endometritis in rats. Myeloperoxidase (MPO) activity assay indicated that Cl-amidine treatment remarkably alleviated the inflammatory cell infiltrations and attenuated the damage to the uterine tissue. The Western blot results indicated that Cl-amidine decreased the expression of citrullinated Histone H3 (Cit-H3) and high-mobility group box 1 protein (HMGB1) protein in LPS-induced rat endometritis. The ELISA test indicated that Cl-amidine treatment significantly inhibited the expression of the pro-inflammatory cytokines IL-1β, IL-6, and TNF-α. The NETs were determined by Quant-iTTMPicoGreen dsDNA kit®, which indicated that Cl-amidine significantly inhibited the NETs in rat serum. All results showed that Cl-amidine effectively reduced the expression of Cit-H3 and HMGB1 proteins by inhibiting the formation of NETs, thereby attenuating the inflammatory response to LPS-induced endometritis in rats. Hence, Cl-amidine could be a potential candidate for the treatment of endometritis.
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Affiliation(s)
- Wenxiang Shen
- Lanzhou Institute of Husbandry and Pharmaceutical Science, Chinese Academy of Agricultural Science, Lanzhou 730050, China; (W.S.); (A.O.O.); (X.M.); (W.J.); (J.Z.); (B.H.I.); (S.W.); (X.W.); (X.D.)
- College of Veterinary Medicine, Northwest A&F University, Yangling District, Xianyang 712100, China
| | - Ayodele Olaolu Oladejo
- Lanzhou Institute of Husbandry and Pharmaceutical Science, Chinese Academy of Agricultural Science, Lanzhou 730050, China; (W.S.); (A.O.O.); (X.M.); (W.J.); (J.Z.); (B.H.I.); (S.W.); (X.W.); (X.D.)
- Department of Animal Health Technology, Oyo State College of Agriculture and Technology, Igboora 201103, Nigeria
| | - Xiaoyu Ma
- Lanzhou Institute of Husbandry and Pharmaceutical Science, Chinese Academy of Agricultural Science, Lanzhou 730050, China; (W.S.); (A.O.O.); (X.M.); (W.J.); (J.Z.); (B.H.I.); (S.W.); (X.W.); (X.D.)
- College of Veterinary Medicine, Inner Mongolia Agricultural University, Hohhot 010010, China
| | - Wei Jiang
- Lanzhou Institute of Husbandry and Pharmaceutical Science, Chinese Academy of Agricultural Science, Lanzhou 730050, China; (W.S.); (A.O.O.); (X.M.); (W.J.); (J.Z.); (B.H.I.); (S.W.); (X.W.); (X.D.)
| | - Juanshan Zheng
- Lanzhou Institute of Husbandry and Pharmaceutical Science, Chinese Academy of Agricultural Science, Lanzhou 730050, China; (W.S.); (A.O.O.); (X.M.); (W.J.); (J.Z.); (B.H.I.); (S.W.); (X.W.); (X.D.)
- College of Veterinary Medicine, Northwest A&F University, Yangling District, Xianyang 712100, China
| | - Bereket Habte Imam
- Lanzhou Institute of Husbandry and Pharmaceutical Science, Chinese Academy of Agricultural Science, Lanzhou 730050, China; (W.S.); (A.O.O.); (X.M.); (W.J.); (J.Z.); (B.H.I.); (S.W.); (X.W.); (X.D.)
- Department of Veterinary Science, Hamelmalo Agricultural College, Keren P.O. Box 397, Eritrea
| | - Shengyi Wang
- Lanzhou Institute of Husbandry and Pharmaceutical Science, Chinese Academy of Agricultural Science, Lanzhou 730050, China; (W.S.); (A.O.O.); (X.M.); (W.J.); (J.Z.); (B.H.I.); (S.W.); (X.W.); (X.D.)
| | - Xiaohu Wu
- Lanzhou Institute of Husbandry and Pharmaceutical Science, Chinese Academy of Agricultural Science, Lanzhou 730050, China; (W.S.); (A.O.O.); (X.M.); (W.J.); (J.Z.); (B.H.I.); (S.W.); (X.W.); (X.D.)
| | - Xuezhi Ding
- Lanzhou Institute of Husbandry and Pharmaceutical Science, Chinese Academy of Agricultural Science, Lanzhou 730050, China; (W.S.); (A.O.O.); (X.M.); (W.J.); (J.Z.); (B.H.I.); (S.W.); (X.W.); (X.D.)
| | - Baohua Ma
- College of Veterinary Medicine, Northwest A&F University, Yangling District, Xianyang 712100, China
| | - Zuoting Yan
- Lanzhou Institute of Husbandry and Pharmaceutical Science, Chinese Academy of Agricultural Science, Lanzhou 730050, China; (W.S.); (A.O.O.); (X.M.); (W.J.); (J.Z.); (B.H.I.); (S.W.); (X.W.); (X.D.)
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Gibbings SL, Haist KC, Nick H, Frasch SC, Glass TH, Vestal B, Danhorn T, Mould KJ, Henson PM, Bratton DL. Heightened turnover and failed maturation of monocyte-derived macrophages in murine chronic granulomatous disease. Blood 2022; 139:1707-1721. [PMID: 34699591 PMCID: PMC8931516 DOI: 10.1182/blood.2021011798] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Accepted: 10/06/2021] [Indexed: 11/20/2022] Open
Abstract
Loss of NADPH oxidase activity leads to altered phagocyte responses and exaggerated inflammation in chronic granulomatous disease (CGD). We sought to assess the effects of Nox2 absence on monocyte-derived macrophages (MoMacs) in gp91phox-/y mice during zymosan-induced peritonitis. MoMacs from CGD and wild-type (WT) peritonea were characterized over time after zymosan injection. Although numbers lavaged from both genotypes were virtually identical, there were marked differences in maturation: newly recruited WT MoMacs rapidly enlarged and matured, losing Ly6C and gaining MHCII, CD206, and CD36, whereas CGD MoMacs remained small and were mostly Ly6C+MHCII-. RNA-sequencing analyses showed few intrinsic differences between genotypes in newly recruited MoMacs but significant differences with time. WT MoMacs displayed changes in metabolism, adhesion, and reparative functions, whereas CGD MoMacs remained inflammatory. PKH dye labeling revealed that although WT MoMacs were mostly recruited within the first 24 hours and remained in the peritoneum while maturing and enlarging, CGD monocytes streamed into the peritoneum for days, with many migrating to the diaphragm where they were found in fibrin(ogen) clots surrounding clusters of neutrophils in nascent pyogranulomata. Importantly, these observations seemed to be driven by milieu: adoptive transfer of CGD MoMacs into inflamed peritonea of WT mice resulted in immunophenotypic maturation and normal behavior, whereas altered maturation/behavior of WT MoMacs resulted from transfer into inflamed peritonea of CGD mice. In addition, Nox2-deficient MoMacs behaved similarly to their Nox2-sufficient counterparts within the largely WT milieu of mixed bone marrow chimeras. These data show persistent recruitment with fundamental failure of MoMac maturation in CGD.
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Affiliation(s)
| | - Kelsey C Haist
- Department of Pediatrics, National Jewish Health, Denver, CO
- Department of Immunology/Microbiology, University of Colorado Denver, Aurora, CO
| | - Heidi Nick
- Department of Pediatrics, National Jewish Health, Denver, CO
| | | | - Teagan H Glass
- Department of Pediatrics, National Jewish Health, Denver, CO
| | | | | | - Kara J Mould
- Department of Medicine, National Jewish Health, Denver, CO
- Department of Pulmonary and Critical Care Medicine, University of Colorado Denver, Aurora, CO
- Department of Medicine, National Jewish Health, Denver, CO; and
| | - Peter M Henson
- Department of Pediatrics, National Jewish Health, Denver, CO
- Department of Immunology/Microbiology, University of Colorado Denver, Aurora, CO
- Department of Medicine, National Jewish Health, Denver, CO
| | - Donna L Bratton
- Department of Pediatrics, National Jewish Health, Denver, CO
- Department of Pediatrics, University of Colorado Denver, Aurora, CO
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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: 13] [Impact Index Per Article: 6.5] [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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