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Alipour S, Mardi A, Shajari N, Kazemi T, Sadeghi MR, Ahmadian Heris J, Masoumi J, Baradaran B. Unmasking the NLRP3 inflammasome in dendritic cells as a potential therapeutic target for autoimmunity, cancer, and infectious conditions. Life Sci 2024; 348:122686. [PMID: 38710282 DOI: 10.1016/j.lfs.2024.122686] [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: 01/17/2024] [Revised: 04/13/2024] [Accepted: 05/03/2024] [Indexed: 05/08/2024]
Abstract
Proper and functional immune response requires a complex interaction between innate and adaptive immune cells, which dendritic cells (DCs) are the primary actors in this coordination as professional antigen-presenting cells. DCs are armed with numerous pattern recognition receptors (PRRs) such as nucleotide-binding and oligomerization domain-like receptors (NLRs) like NLRP3, which influence the development of their activation state upon sensation of ligands. NLRP3 is a crucial component of the immune system for protection against tumors and infectious agents, because its activation leads to the assembly of inflammasomes that cause the formation of active caspase-1 and stimulate the maturation and release of proinflammatory cytokines. But, when NLRP3 becomes overactivated, it plays a pathogenic role in the progression of several autoimmune disorders. So, NLRP3 activation is strictly regulated by diverse signaling pathways that are mentioned in detail in this review. Furthermore, the role of NLRP3 in all of the diverse immune cells' subsets is briefly mentioned in this study because NLRP3 plays a pivotal role in modulating other immune cells which are accompanied by DCs' responses and subsequently influence differentiation of T cells to diverse T helper subsets and even impact on cytotoxic CD8+ T cells' responses. This review sheds light on the functional and therapeutic role of NLRP3 in DCs and its contribution to the occurrence and progression of autoimmune disorders, prevention of diverse tumors' development, and recognition and annihilation of various infectious agents. Furthermore, we highlight NLRP3 targeting potential for improving DC-based immunotherapeutic approaches, to be used for the benefit of patients suffering from these disorders.
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Affiliation(s)
- Shiva Alipour
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Immunology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran; Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Amirhossein Mardi
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Immunology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran; Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Neda Shajari
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Tohid Kazemi
- Department of Immunology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Reza Sadeghi
- Department of Molecular Medicine, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Javad Masoumi
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Behzad Baradaran
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Immunology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.
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2
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Liu X, Zheng Y, Meng Z, Wang H, Zhang Y, Xue D. Gene Regulation of Neutrophils Mediated Liver and Lung Injury through NETosis in Acute Pancreatitis. Inflammation 2024:10.1007/s10753-024-02071-w. [PMID: 38884700 DOI: 10.1007/s10753-024-02071-w] [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: 02/08/2024] [Revised: 05/18/2024] [Accepted: 05/30/2024] [Indexed: 06/18/2024]
Abstract
Acute pancreatitis (AP) is one of the most common gastrointestinal emergencies, often resulting in self-digestion, edema, hemorrhage, and even necrosis of pancreatic tissue. When AP progresses to severe acute pancreatitis (SAP), it often causes multi-organ damage, leading to a high mortality rate. However, the molecular mechanisms underlying SAP-mediated organ damage remain unclear. This study aims to systematically mine SAP data from public databases and combine experimental validation to identify key molecules involved in multi-organ damage caused by SAP. Retrieve transcriptomic data of mice pancreatic tissue for AP, lung and liver tissue for SAP, and corresponding normal tissue from the Gene Expression Omnibus (GEO) database. Conduct gene differential analysis using Limma and DEseq2 methods. Perform enrichment analysis using the clusterProfiler package in R software. Score immune cells and immune status in various organs using single-sample gene set enrichment analysis (ssGSEA). Evaluate mRNA expression levels of core genes using reverse transcription-polymerase chain reaction (RT-PCR) and immunohistochemistry. Validate serum amylase, TNF-α, IL-1β, and IL-6 levels in peripheral blood using enzyme-linked immunosorbent assay (ELISA), and detect the formation of neutrophil extracellular traps (NETs) in mice pancreatic, liver, and lung tissues using immunofluorescence. Differential analysis reveals that 46 genes exhibit expression dysregulation in mice pancreatic tissue for AP, liver and lung tissue for SAP, as well as peripheral blood in humans. Functional enrichment analysis indicates that these genes are primarily associated with neutrophil-related biological processes. ROC curve analysis indicates that 12 neutrophil-related genes have diagnostic potential for SAP. Immune infiltration analysis reveals high neutrophil infiltration in various organs affected by SAP. Single-cell sequencing analysis shows that these genes are predominantly expressed in neutrophils and macrophages. FPR1, ITGAM, and C5AR1 are identified as key genes involved in the formation of NETs and activation of neutrophils. qPCR and IHC results demonstrate upregulation of FPR1, ITGAM, and C5AR1 expression in pancreatic, liver, and lung tissues of mice with SAP. Immunofluorescence staining shows increased levels of neutrophils and NETs in SAP mice. Inhibition of NETs formation can alleviate the severity of SAP as well as the levels of inflammation in the liver and lung tissues. This study identified key genes involved in the formation of NETs, namely FPR1, ITGAM, and C5AR1, which are upregulated during multi-organ damage in SAP. Inhibition of NETs release effectively reduces the systemic inflammatory response and liver-lung damage in SAP. This research provides new therapeutic targets for the multi-organ damage associated with SAP.
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Affiliation(s)
- Xuxu Liu
- Department of General Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, China
- Key Laboratory of Hepatosplenic Surgery, Ministry of Education, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Yi Zheng
- Department of General Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, China
- Key Laboratory of Hepatosplenic Surgery, Ministry of Education, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Ziang Meng
- Department of General Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, China
- Key Laboratory of Hepatosplenic Surgery, Ministry of Education, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Heming Wang
- Department of General Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, China
- Key Laboratory of Hepatosplenic Surgery, Ministry of Education, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Yingmei Zhang
- Key Laboratory of Hepatosplenic Surgery, Ministry of Education, The First Affiliated Hospital of Harbin Medical University, Harbin, China.
| | - Dongbo Xue
- Department of General Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, China.
- Key Laboratory of Hepatosplenic Surgery, Ministry of Education, The First Affiliated Hospital of Harbin Medical University, Harbin, China.
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3
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Wu X, Yang Y. Neutrophil extracellular traps (NETs) and fibrotic diseases. Int Immunopharmacol 2024; 133:112085. [PMID: 38626550 DOI: 10.1016/j.intimp.2024.112085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Revised: 04/07/2024] [Accepted: 04/10/2024] [Indexed: 04/18/2024]
Abstract
Fibrosis, a common cause and serious outcome of organ failure that can affect any organ, is responsible for up to 45% of all deaths in various clinical settings. Both preclinical models and clinical trials investigating various organ systems have shown that fibrosis is a highly dynamic process. Although many studies have sought to gain understanding of the mechanism of fibrosis progression, their findings have been mixed. In recent years, increasing evidence indicates that neutrophil extracellular traps (NETs) are involved in many inflammatory and autoimmune disorders and participate in the regulation of fibrotic processes in various organs and systems. In this review, we summarize the current understanding of the role of NETs in fibrosis development and progression and their possibility as therapeutic targets.
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Affiliation(s)
- Xiaojiao Wu
- School of Pediatrics, Nanjing Medical University, Nanjing, China
| | - Yang Yang
- Department of Gastroenterology, Sir Run Run Hospital, Nanjing Medical University, Nanjing, China.
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4
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Bork F, Greve CL, Youn C, Chen S, N C Leal V, Wang Y, Fischer B, Nasri M, Focken J, Scheurer J, Engels P, Dubbelaar M, Hipp K, Zalat B, Szolek A, Wu MJ, Schittek B, Bugl S, Kufer TA, Löffler MW, Chamaillard M, Skokowa J, Kramer D, Archer NK, Weber ANR. naRNA-LL37 composite DAMPs define sterile NETs as self-propagating drivers of inflammation. EMBO Rep 2024:10.1038/s44319-024-00150-5. [PMID: 38783164 DOI: 10.1038/s44319-024-00150-5] [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: 08/24/2023] [Revised: 04/16/2024] [Accepted: 04/18/2024] [Indexed: 05/25/2024] Open
Abstract
Neutrophil extracellular traps (NETs) are a key antimicrobial feature of cellular innate immunity mediated by polymorphonuclear neutrophils (PMNs). NETs counteract microbes but are also linked to inflammation in atherosclerosis, arthritis, or psoriasis by unknown mechanisms. Here, we report that NET-associated RNA (naRNA) stimulates further NET formation in naive PMNs via a unique TLR8-NLRP3 inflammasome-dependent pathway. Keratinocytes respond to naRNA with expression of psoriasis-related genes (e.g., IL17, IL36) via atypical NOD2-RIPK signaling. In vivo, naRNA drives temporary skin inflammation, which is drastically ameliorated by genetic ablation of RNA sensing. Unexpectedly, the naRNA-LL37 'composite damage-associated molecular pattern (DAMP)' is pre-stored in resting neutrophil granules, defining sterile NETs as inflammatory webs that amplify neutrophil activation. However, the activity of the naRNA-LL37 DAMP is transient and hence supposedly self-limiting under physiological conditions. Collectively, upon dysregulated NET release like in psoriasis, naRNA sensing may represent both a potential cause of disease and a new intervention target.
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Affiliation(s)
- Francesca Bork
- Institute of Immunology, Department of Innate Immunity, University of Tübingen, Auf der Morgenstelle 15, 72076, Tübingen, Germany
| | - Carsten L Greve
- Institute of Immunology, Department of Innate Immunity, University of Tübingen, Auf der Morgenstelle 15, 72076, Tübingen, Germany
| | - Christine Youn
- Department of Dermatology, Johns Hopkins University School of Medicine, Baltimore, MD, 21231, USA
| | - Sirui Chen
- Institute of Immunology, Department of Innate Immunity, University of Tübingen, Auf der Morgenstelle 15, 72076, Tübingen, Germany
| | - Vinicius N C Leal
- Institute of Immunology, Department of Innate Immunity, University of Tübingen, Auf der Morgenstelle 15, 72076, Tübingen, Germany
- Laboratory of Immunogenetics, Department of Immunology, Institute of Biomedical Science, University of São Paulo (USP), São Paulo, SP, Brazil
| | - Yu Wang
- Department of Dermatology, Johns Hopkins University School of Medicine, Baltimore, MD, 21231, USA
| | - Berenice Fischer
- Department of Dermatology, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Masoud Nasri
- Division of Translational Oncology, Department of Oncology, Hematology, Clinical Immunology and Rheumatology, University Hospital Tübingen, Otfried-Müller Str. 10, 72076, Tübingen, Germany
| | - Jule Focken
- Department of Dermatology, University Hospital Tübingen, Liebermeisterstr. 25, 72076, Tübingen, Germany
| | - Jasmin Scheurer
- Department of Dermatology, University Hospital Tübingen, Liebermeisterstr. 25, 72076, Tübingen, Germany
| | - Pujan Engels
- Institute of Immunology, Department of Innate Immunity, University of Tübingen, Auf der Morgenstelle 15, 72076, Tübingen, Germany
| | - Marissa Dubbelaar
- Institute of Immunology, Department of Peptide-based Immunotherapy, University of Tübingen, Auf der Morgenstelle 15, 72076, Tübingen, Germany
- Quantitative Biology Center (QBiC), University of Tübingen, Auf der Morgenstelle 10, 72076, Tübingen, Germany
| | - Katharina Hipp
- Electron Microscopy Facility, Max Planck Institute for Biology Tübingen, Max-Planck-Ring 5, 72076, Tübingen, Germany
| | - Baher Zalat
- Institute of Immunology, Department of Innate Immunity, University of Tübingen, Auf der Morgenstelle 15, 72076, Tübingen, Germany
| | - Andras Szolek
- Institute of Immunology, Department of Innate Immunity, University of Tübingen, Auf der Morgenstelle 15, 72076, Tübingen, Germany
| | - Meng-Jen Wu
- Department of Dermatology, Johns Hopkins University School of Medicine, Baltimore, MD, 21231, USA
| | - Birgit Schittek
- Department of Dermatology, University Hospital Tübingen, Liebermeisterstr. 25, 72076, Tübingen, Germany
- iFIT - Cluster of Excellence (EXC 2180) "Image-Guided and Functionally Instructed Tumor Therapies", University of Tübingen, Tübingen, Germany
- CMFI - Cluster of Excellence (EXC 2124) "Controlling microbes to fight infection", University of Tübingen, Tübingen, Germany
| | - Stefanie Bugl
- Institute of Immunology, Department of Innate Immunity, University of Tübingen, Auf der Morgenstelle 15, 72076, Tübingen, Germany
| | - Thomas A Kufer
- Institute of Nutritional Medicine, Department of Immunology, University of Hohenheim, Fruwirthstr. 12, 70593, Stuttgart, Germany
| | - Markus W Löffler
- Institute of Immunology, Department of Peptide-based Immunotherapy, University of Tübingen, Auf der Morgenstelle 15, 72076, Tübingen, Germany
- iFIT - Cluster of Excellence (EXC 2180) "Image-Guided and Functionally Instructed Tumor Therapies", University of Tübingen, Tübingen, Germany
- Institute for Clinical and Experimental Transfusion Medicine, Medical Faculty, University of Tübingen, Otfried-Müller-Str. 4/1, 72076, Tübingen, Germany
| | - Mathias Chamaillard
- University of Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019 - UMR 8204 - CIIL - Centre d'Infection et d'Immunité de Lille, F-59000, Lille, France
| | - Julia Skokowa
- Division of Translational Oncology, Department of Oncology, Hematology, Clinical Immunology and Rheumatology, University Hospital Tübingen, Otfried-Müller Str. 10, 72076, Tübingen, Germany
- iFIT - Cluster of Excellence (EXC 2180) "Image-Guided and Functionally Instructed Tumor Therapies", University of Tübingen, Tübingen, Germany
| | - Daniela Kramer
- Department of Dermatology, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Nathan K Archer
- Department of Dermatology, Johns Hopkins University School of Medicine, Baltimore, MD, 21231, USA
| | - Alexander N R Weber
- Institute of Immunology, Department of Innate Immunity, University of Tübingen, Auf der Morgenstelle 15, 72076, Tübingen, Germany.
- iFIT - Cluster of Excellence (EXC 2180) "Image-Guided and Functionally Instructed Tumor Therapies", University of Tübingen, Tübingen, Germany.
- CMFI - Cluster of Excellence (EXC 2124) "Controlling microbes to fight infection", University of Tübingen, Tübingen, Germany.
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Wu J, Sun X, Jiang P. Metabolism-inflammasome crosstalk shapes innate and adaptive immunity. Cell Chem Biol 2024; 31:884-903. [PMID: 38759617 DOI: 10.1016/j.chembiol.2024.04.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 04/08/2024] [Accepted: 04/16/2024] [Indexed: 05/19/2024]
Abstract
Inflammasomes are a central component of innate immunity and play a vital role in regulating innate immune response. Activation of inflammasomes is also indispensable for adaptive immunity, modulating the development and response of adaptive immunity. Recently, increasing studies have shown that metabolic alterations and adaptations strongly influence and regulate the differentiation and function of the immune system. In this review, we will take a holistic view of how inflammasomes bridge innate and adaptive (especially T cell) immunity and how inflammasomes crosstalk with metabolic signals during the immune responses. And, special attention will be paid to the metabolic control of inflammasome-mediated interactions between innate and adaptive immunity in disease. Understanding the metabolic regulatory functions of inflammasomes would provide new insights into future research directions in this area and may help to identify potential targets for inflammasome-associated diseases and broaden therapeutic avenues.
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Affiliation(s)
- Jun Wu
- School of Pharmaceutical Sciences, Xiamen University, Xiamen 361102, Fujian, China; State Key Laboratory of Molecular Oncology, School of Life Sciences, Tsinghua University, Beijing 100084, China; Tsinghua-Peking Center for Life Sciences, Beijing 100084, China
| | - Xuan Sun
- State Key Laboratory of Molecular Oncology, School of Life Sciences, Tsinghua University, Beijing 100084, China; Tsinghua-Peking Center for Life Sciences, Beijing 100084, China
| | - Peng Jiang
- State Key Laboratory of Molecular Oncology, School of Life Sciences, Tsinghua University, Beijing 100084, China; Tsinghua-Peking Center for Life Sciences, Beijing 100084, China.
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Ri-Wen, Yang YH, Zhang TN, Liu CF, Yang N. Targeting epigenetic and post-translational modifications regulating pyroptosis for the treatment of inflammatory diseases. Pharmacol Res 2024; 203:107182. [PMID: 38614373 DOI: 10.1016/j.phrs.2024.107182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 04/09/2024] [Accepted: 04/10/2024] [Indexed: 04/15/2024]
Abstract
Inflammatory diseases, including infectious diseases, diabetes-related diseases, arthritis-related diseases, neurological diseases, digestive diseases, and tumor, continue to threaten human health and impose a significant financial burden despite advancements in clinical treatment. Pyroptosis, a pro-inflammatory programmed cell death pathway, plays an important role in the regulation of inflammation. Moderate pyroptosis contributes to the activation of native immunity, whereas excessive pyroptosis is associated with the occurrence and progression of inflammation. Pyroptosis is complicated and tightly controlled by various factors. Accumulating evidence has confirmed that epigenetic modifications and post-translational modifications (PTMs) play vital roles in the regulation of pyroptosis. Epigenetic modifications, which include DNA methylation and histone modifications (such as methylation and acetylation), and post-translational modifications (such as ubiquitination, phosphorylation, and acetylation) precisely manipulate gene expression and protein functions at the transcriptional and post-translational levels, respectively. In this review, we summarize the major pathways of pyroptosis and focus on the regulatory roles and mechanisms of epigenetic and post-translational modifications of pyroptotic components. We also illustrate these within pyroptosis-associated inflammatory diseases. In addition, we discuss the effects of novel therapeutic strategies targeting epigenetic and post-translational modifications on pyroptosis, and provide prospective insight into the regulation of pyroptosis for the treatment of inflammatory diseases.
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Affiliation(s)
- Ri-Wen
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang 110004, China
| | - Yu-Hang Yang
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang 110004, China
| | - Tie-Ning Zhang
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang 110004, China
| | - Chun-Feng Liu
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang 110004, China.
| | - Ni Yang
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang 110004, China.
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7
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Van Bruggen S, Sheehy CE, Kraisin S, Frederix L, Wagner DD, Martinod K. Neutrophil peptidylarginine deiminase 4 plays a systemic role in obesity-induced chronic inflammation in mice. J Thromb Haemost 2024; 22:1496-1509. [PMID: 38325598 DOI: 10.1016/j.jtha.2024.01.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 12/29/2023] [Accepted: 01/16/2024] [Indexed: 02/09/2024]
Abstract
BACKGROUND Obesity is an increasing problem in our current society and is expected to keep rising in incidence. With its multiorigin, complex pathophysiology, it is difficult to treat and easy to acquire unnoticeably. During obesity, it has been established that the body is in a constant state of low-grade inflammation, thereby causing changes in immune cell physiology. OBJECTIVES Here, we investigated the influence of neutrophils, more specifically as a result of peptidylarginine deiminase 4 (PAD4) activity and the release of neutrophil extracellular traps (NETs), during obesity-induced chronic inflammation. METHODS Wild-type mice were placed on a high-fat diet (HFD) and investigated over a period of 10 weeks for NET formation and its impact on the heart. Neutrophil-selective PAD4 knockout (Ne-PAD4-/-) mice were studied in parallel. RESULTS As a result of high fat intake, we observed clear alteration in the priming status of isolated neutrophils toward NET release, including early stages of speck formation and histone citrullination of apoptosis-associated speck-like protein containing a CARD. Ne-PAD4-/- mice deficient in NET formation did not increase bodyweight to the same extent as their littermate controls, with Ne-PAD4-/- mice being leaner after 10 weeks of HFD feeding. Interestingly, obesity progression led to cardiac remodeling and diastolic dysfunction in wild-type mice after 10 weeks, while this remodeling and subsequent decrease in function were absent in Ne-PAD4-/- mice. Surprisingly, HFD did not alter NET content or thrombus formation in the inferior vena cava stenosis model. CONCLUSION Detrimental physiological effects, the result of obesity progression, can in part be attributed to neutrophil PAD4 and NETs in response to chronic inflammation.
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Affiliation(s)
- Stijn Van Bruggen
- Center for Vascular and Molecular Biology, Department of Cardiovascular Sciences, Katholieke Universiteit Leuven, Leuven, Belgium; Program in Cellular and Molecular Medicine, Boston Children's Hospital, Boston, Massachusetts, USA. http://www.twitter.com/Cardio_KULeuven
| | - Casey E Sheehy
- Program in Cellular and Molecular Medicine, Boston Children's Hospital, Boston, Massachusetts, USA
| | - Sirima Kraisin
- Center for Vascular and Molecular Biology, Department of Cardiovascular Sciences, Katholieke Universiteit Leuven, Leuven, Belgium. http://www.twitter.com/Cardio_KULeuven
| | - Liesbeth Frederix
- Center for Vascular and Molecular Biology, Department of Cardiovascular Sciences, Katholieke Universiteit Leuven, Leuven, Belgium. http://www.twitter.com/Cardio_KULeuven
| | - Denisa D Wagner
- Program in Cellular and Molecular Medicine, Boston Children's Hospital, Boston, Massachusetts, USA; Department of Pediatrics, Harvard Medical School, Boston, Massachusetts, USA; Division of Hematology/Oncology, Boston Children's Hospital, Boston, Massachusetts, USA.
| | - Kimberly Martinod
- Center for Vascular and Molecular Biology, Department of Cardiovascular Sciences, Katholieke Universiteit Leuven, Leuven, Belgium.
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Pucinelli CM, da Silva RAB, Nelson-Filho P, Lima RB, Lucisano MP, Marchesan JT, da Silva LAB. The effects of NLRP3 inflammasome inhibition or knockout in experimental apical periodontitis induced in mice. Clin Oral Investig 2024; 28:285. [PMID: 38684528 DOI: 10.1007/s00784-024-05691-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Accepted: 04/24/2024] [Indexed: 05/02/2024]
Abstract
OBJECTIVE To evaluate the effects of NLRP3 inflammasome inhibition or knockout in experimental apical periodontitis (AP) induced in mice. METHODS The experimental AP was induced by pulpal exposure. To evaluate NLRP3-specific inhibitor medication (MCC950), WT mice received intraperitoneal injections, while the control received PBS (n = 10). In addition, to evaluate NLRP3 knockout, 35 wild-type (WT) and 35 NLRP3-/- mice were divided into a control group (without pulpal exposure, n = 5) and three experimental groups: after 2, 14 and 42 days after pulpal exposure (n = 10). Microscopic and molecular analyzes were carried out using a significance level of 5%. RESULTS Exposure to MCC950 did not affect the periapical lesion size after 14 days (P = 0.584). However, exposed mice had a lower expression of IL-1β, IL-18 and caspase-1 (P = 0.010, 0.016 and 0.002, respectively). Moreover, NLRP3-/- mice showed a smaller periapical lesion after 14 and 42 days (P = 0.023 and 0.031, respectively), as well as a lower expression of IL-1β after 42 days (P < 0.001), of IL-18 and caspase-1 after 14 (P < 0.001 and 0.035, respectively) and 42 days (P = 0.002 and 0.002, respectively). NLRP3-/- mice also showed a lower mRNA for Il-1β, Il-18 and Casp1 after 2 (P = 0.002, 0.036 and 0.001, respectively) and 14 days (P = 0.002, 0.002 and 0.001, respectively). CONCLUSIONS NLRP3 inflammasome inhibition or knockout can attenuate the inflammatory events that result in the periapical lesion (AP) formation after pulpal exposure in mice. CLINICAL RELEVANCE The NLRP3 inflammasome may be a therapeutic target for AP, and new approaches may verify the impact of its inhibition (through intracanal medications or filling materials) on the bone repair process and treatment success.
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Affiliation(s)
- Carolina Maschietto Pucinelli
- Department of Pediatric Dentistry (DCI), School of Dentistry of Ribeirão Preto, University of São Paulo (FORP/USP), Avenida do Café, s/n, Vila Monte Alegre, Ribeirão Preto, São Paulo, Brazil
| | - Raquel Assed Bezerra da Silva
- Department of Pediatric Dentistry (DCI), School of Dentistry of Ribeirão Preto, University of São Paulo (FORP/USP), Avenida do Café, s/n, Vila Monte Alegre, Ribeirão Preto, São Paulo, Brazil
- Graduate Program in Pediatric Dentistry, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Paulo Nelson-Filho
- Department of Pediatric Dentistry (DCI), School of Dentistry of Ribeirão Preto, University of São Paulo (FORP/USP), Avenida do Café, s/n, Vila Monte Alegre, Ribeirão Preto, São Paulo, Brazil
- Graduate Program in Pediatric Dentistry, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Ricardo Barbosa Lima
- Department of Pediatric Dentistry (DCI), School of Dentistry of Ribeirão Preto, University of São Paulo (FORP/USP), Avenida do Café, s/n, Vila Monte Alegre, Ribeirão Preto, São Paulo, Brazil.
- Graduate Program in Pediatric Dentistry, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil.
| | - Marília Pacífico Lucisano
- Department of Pediatric Dentistry (DCI), School of Dentistry of Ribeirão Preto, University of São Paulo (FORP/USP), Avenida do Café, s/n, Vila Monte Alegre, Ribeirão Preto, São Paulo, Brazil
- Graduate Program in Pediatric Dentistry, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Julie Teresa Marchesan
- Department of Periodontology, School of Dentistry, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Léa Assed Bezerra da Silva
- Department of Pediatric Dentistry (DCI), School of Dentistry of Ribeirão Preto, University of São Paulo (FORP/USP), Avenida do Café, s/n, Vila Monte Alegre, Ribeirão Preto, São Paulo, Brazil
- Graduate Program in Pediatric Dentistry, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
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Mannherz HG, Budde H, Jarkas M, Hassoun R, Malek-Chudzik N, Mazur AJ, Skuljec J, Pul R, Napirei M, Hamdani N. Reorganization of the actin cytoskeleton during the formation of neutrophil extracellular traps (NETs). Eur J Cell Biol 2024; 103:151407. [PMID: 38555846 DOI: 10.1016/j.ejcb.2024.151407] [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: 08/10/2023] [Revised: 03/19/2024] [Accepted: 03/20/2024] [Indexed: 04/02/2024] Open
Abstract
We analyzed actin cytoskeleton alterations during NET extrusion by neutrophil-like dHL-60 cells and human neutrophils in the absence of DNase1 containing serum to avoid chromatin degradation and microfilament disassembly. NET-formation by dHL-60 cells and neutrophils was induced by Ionomycin or phorbol-12-myristat-13-acetate (PMA). Subsequent staining with anti-actin and TRITC-phalloidin showed depolymerization of the cortical F-actin at spatially confined areas, the NET extrusion sites, effected by transient activation of the monooxygenase MICAL-1 supported by the G-actin binding proteins cofilin, profilin, thymosin ß4 and probably the F-actin fragmenting activity of gelsolin and/or its fragments, which also decorated the formed NETs. MICAL-1 itself appeared to be proteolyzed by neutrophil elastase possibly to confine its activity to the NET-extrusion area. The F-actin oxidization activity of MICAL-1 is inhibited by Levosimendan leading to reduced NET-formation. Anti-gasdermin-D immunohistochemistry showed a cytoplasmic distribution in non-stimulated cells. After stimulation the NET-extrusion pore displayed reduced anti-gasdermin-D staining but accumulated underneath the plasma membrane of the remaining cell body. A similar distribution was observed for myosin that concentrated together with cortical F-actin along the periphery of the remaining cell body suggesting force production by acto-myosin interactions supporting NET expulsion as indicated by the inhibitory action of the myosin ATPase inhibitor blebbistatin. Isolated human neutrophils displayed differences in their content of certain cytoskeletal proteins. After stimulation neutrophils with high gelsolin content preferentially formed "cloud"-like NETs, whereas those with low or no gelsolin formed long "filamentous" NETs.
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Affiliation(s)
- Hans Georg Mannherz
- Department of Anatomy and Molecular Embryology, Medical Faculty, Ruhr-University Bochum, Germany; Department of Cellular and Translational Physiology, Institute of Physiology, Medical Faculty, Ruhr-University Bochum, and Molecular and Experimental Cardiology, Institute for Research and Education, St. Josef Hospital, Clinics of the Ruhr-University Bochum, Germany.
| | - Heidi Budde
- Department of Cellular and Translational Physiology, Institute of Physiology, Medical Faculty, Ruhr-University Bochum, and Molecular and Experimental Cardiology, Institute for Research and Education, St. Josef Hospital, Clinics of the Ruhr-University Bochum, Germany.
| | - Muhammad Jarkas
- Department of Cellular and Translational Physiology, Institute of Physiology, Medical Faculty, Ruhr-University Bochum, and Molecular and Experimental Cardiology, Institute for Research and Education, St. Josef Hospital, Clinics of the Ruhr-University Bochum, Germany.
| | - Roua Hassoun
- Department of Cellular and Translational Physiology, Institute of Physiology, Medical Faculty, Ruhr-University Bochum, and Molecular and Experimental Cardiology, Institute for Research and Education, St. Josef Hospital, Clinics of the Ruhr-University Bochum, Germany.
| | - Natalia Malek-Chudzik
- Department of Chemical Biology and Bioimaging, Faculty of Chemistry, University of Wroclaw, Poland.
| | - Antonina J Mazur
- Department of Cell Pathology, Faculty of Biotechnology, University of Wroclaw, Poland.
| | - Jelena Skuljec
- Department of Neurology, University Medicine Essen, Germany; Center for Translational Neuro- and Behavioral Sciences (C-TNBS), University Medicine Essen, Germany.
| | - Refik Pul
- Department of Neurology, University Medicine Essen, Germany; Center for Translational Neuro- and Behavioral Sciences (C-TNBS), University Medicine Essen, Germany.
| | - Markus Napirei
- Department of Anatomy and Molecular Embryology, Medical Faculty, Ruhr-University Bochum, Germany
| | - Nazha Hamdani
- Department of Cellular and Translational Physiology, Institute of Physiology, Medical Faculty, Ruhr-University Bochum, and Molecular and Experimental Cardiology, Institute for Research and Education, St. Josef Hospital, Clinics of the Ruhr-University Bochum, Germany; Department of Physiology, University Maastricht, Maastricht, the Netherlands; HCEMM-SU Cardiovascular Comorbidities Research Group, Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest 1089, Hungary.
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10
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Mattke J, Darden CM, Lawrence MC, Kuncha J, Shah YA, Kane RR, Naziruddin B. Toll-like receptor 4 in pancreatic damage and immune infiltration in acute pancreatitis. Front Immunol 2024; 15:1362727. [PMID: 38585277 PMCID: PMC10995222 DOI: 10.3389/fimmu.2024.1362727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Accepted: 03/11/2024] [Indexed: 04/09/2024] Open
Abstract
Acute pancreatitis is a complex inflammatory disease resulting in extreme pain and can result in significant morbidity and mortality. It can be caused by several factors ranging from genetics, alcohol use, gall stones, and ductal obstruction caused by calcification or neutrophil extracellular traps. Acute pancreatitis is also characterized by immune cell infiltration of neutrophils and M1 macrophages. Toll-like receptor 4 (TLR4) is a pattern recognition receptor that has been noted to respond to endogenous ligands such as high mobility group box 1 (HMGB1) protein and or exogenous ligands such as lipopolysaccharide both of which can be present during the progression of acute pancreatitis. This receptor can be found on a variety of cell types from endothelial cells to resident and infiltrating immune cells leading to production of pro-inflammatory cytokines as well as immune cell activation and maturation resulting in the furthering of pancreatic damage during acute pancreatitis. In this review we will address the various mechanisms mediated by TLR4 in the advancement of acute pancreatitis and how targeting this receptor could lead to improved outcomes for patients suffering from this condition.
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Affiliation(s)
- Jordan Mattke
- Baylor University, Institute of Biomedical Studies, Waco, TX, United States
| | - Carly M. Darden
- Baylor University Medical Center, Annette C. and Harold C. Simmons Transplant Institute, Dallas, TX, United States
| | - Michael C. Lawrence
- Islet Cell Laboratory, Baylor Scott and White Research Institute, Dallas, TX, United States
| | - Jayachandra Kuncha
- Islet Cell Laboratory, Baylor Scott and White Research Institute, Dallas, TX, United States
| | - Yumna Ali Shah
- Islet Cell Laboratory, Baylor Scott and White Research Institute, Dallas, TX, United States
| | - Robert R. Kane
- Baylor University, Institute of Biomedical Studies, Waco, TX, United States
| | - Bashoo Naziruddin
- Baylor University Medical Center, Annette C. and Harold C. Simmons Transplant Institute, Dallas, TX, United States
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11
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Feng Y, Bao X, Zhao J, Kang L, Sun X, Xu B. MSC-Derived Exosomes Mitigate Myocardial Ischemia/Reperfusion Injury by Reducing Neutrophil Infiltration and the Formation of Neutrophil Extracellular Traps. Int J Nanomedicine 2024; 19:2071-2090. [PMID: 38476275 PMCID: PMC10928923 DOI: 10.2147/ijn.s436925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Accepted: 02/14/2024] [Indexed: 03/14/2024] Open
Abstract
Introduction Acute inflammatory storm is a major cause of myocardial ischemia/reperfusion (I/R) injury, with no effective treatment currently available. The excessive aggregation of neutrophils is correlated with an unfavorable prognosis in acute myocardial infarction (AMI) patients. Exosomes derived from mesenchymal stromal cells (MSC-Exo) have certain immunomodulatory potential and might be a therapeutic application. Therefore, we investigated the protective role of MSC-Exo in modulating neutrophil infiltration and formation of neutrophil extracellular traps (NETs) following myocardial I/R injury. Methods Exosomes were isolated from the supernatant of MSCs using a gradient centrifugation method. We used flow cytometry, histochemistry, and immunofluorescence to detect the changes of neutrophils post-intravenous MSC-Exo injection. Additionally, cardiac magnetic resonance (CMR) and thioflavin S experiments were applied to detect microvascular obstruction (MVO). The NLR family pyrin domain containing 3 (NLRP3) inflammasome was examined for mechanism exploration. Primary neutrophils were extracted for in vitro experiment. Antibody of Ly6G was given to depleting the neutrophils in mice for verification the effect of MSC-Exo. Finally, we analyzed the MiRNA sequence of MSC-Exo and verified it in vitro. Results MSC-Exo administration reduced neutrophil infiltration and NETs formation after myocardial I/R. MSC-Exo treatment also could attenuate the activation of NLRP3 inflammasome both in vivo and in vitro. At the same time, the infarction size and MVO following I/R injury were reduced by MSC-Exo. Moreover, systemic depletion of neutrophils partly negated the therapeutic effects of MSC-Exo. Up-regulation of miR-199 in neutrophils has been shown to decrease the expression of NETs formation after stimulation. Discussion Our results demonstrated that MSC-Exo mitigated myocardial I/R injury in mice by modulating neutrophil infiltration and NETs formation. This study provides novel insights into the potential therapeutic application of MSC-Exo for myocardial ischemia/reperfusion injury.
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Affiliation(s)
- Yuting Feng
- Department of Cardiology, Nanjing Drum Tower Hospital, State Key Laboratory of Pharmaceutical Biotechnology, Medical School of Nanjing University, Nanjing, People’s Republic of China
| | - Xue Bao
- Department of Cardiology, Nanjing Drum Tower Hospital, State Key Laboratory of Pharmaceutical Biotechnology, Medical School of Nanjing University, Nanjing, People’s Republic of China
| | - Jinxuan Zhao
- Department of Cardiology, Nanjing Drum Tower Hospital, State Key Laboratory of Pharmaceutical Biotechnology, Medical School of Nanjing University, Nanjing, People’s Republic of China
| | - Lina Kang
- Department of Cardiology, Nanjing Drum Tower Hospital, State Key Laboratory of Pharmaceutical Biotechnology, Medical School of Nanjing University, Nanjing, People’s Republic of China
| | - Xuan Sun
- Department of Cardiology, Nanjing Drum Tower Hospital, State Key Laboratory of Pharmaceutical Biotechnology, Medical School of Nanjing University, Nanjing, People’s Republic of China
| | - Biao Xu
- Department of Cardiology, Nanjing Drum Tower Hospital, State Key Laboratory of Pharmaceutical Biotechnology, Medical School of Nanjing University, Nanjing, People’s Republic of China
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12
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Huang L, Tan X, Xuan W, Luo Q, Xie L, Xi Y, Li R, Li L, Li F, Zhao M, Jiang Y, Wu X. Ficolin-A/2 Aggravated Severe Lung Injury through Neutrophil Extracellular Traps Mediated by Gasdermin D-Induced Pyroptosis. THE AMERICAN JOURNAL OF PATHOLOGY 2024:S0002-9440(24)00082-8. [PMID: 38442803 DOI: 10.1016/j.ajpath.2024.02.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 01/15/2024] [Accepted: 02/06/2024] [Indexed: 03/07/2024]
Abstract
Neutrophil extracellular traps (NETs) and pyroptosis are critical events in lung injury. This study investigated whether ficolin-A influences NET formation through pyroptosis to exacerbate lipopolysaccharide (LPS)-induced lung injury. The expression of ficolin-A/2, NETs, and pyroptosis-related molecules was investigated in animal and cell models. Knockout and knockdown (recombinant protein) methods were used to elucidate regulatory mechanisms. The Pearson correlation coefficient was used to analyze the correlation between ficolins and pyroptosis- and NET-related markers in clinical samples. In this study, ficolin-2 (similar to ficolin-A) showed significant overexpression in patients with acute respiratory distress syndrome. In vivo, knockout of ficolin-A, but not ficolin-B, attenuated lung inflammation and inhibited NET formation in the LPS-induced mouse model. DNase I further alleviated lung inflammation and NET formation in ficolin-A knockout mice. In vitro, neutrophils derived from Fcna-/- mice showed less pyroptosis and necroptosis than those from the control group after LPS stimulation. Additionally, gasdermin D knockdown or Nod-like receptor protein 3 inhibitor reduced NET formation. Addition of recombinant ficolin-2 protein to human peripheral blood neutrophils promoted NET formation and pyroptosis after LPS stimulation, whereas ficolin-2 knockdown had the opposite effect. Acute respiratory distress syndrome patients showed increased levels of pyroptosis- and NET-related markers, which were correlated positively with ficolin-2 levels. In conclusion, these results suggested that ficolin-A/2 exacerbated NET formation and LPS-induced lung injury via gasdermin D-mediated pyroptosis.
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Affiliation(s)
- Li Huang
- Department of Pediatrics, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, Henan, China; Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, Henan, China
| | - Xiaowu Tan
- Pulmonary and Critical Care Medicine, The Second Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Henan, China
| | - Weixia Xuan
- Department of Respiratory and Critical Care Medicine, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Qing Luo
- Pulmonary and Critical Care Medicine, The Second Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Henan, China
| | - Li Xie
- Pulmonary and Critical Care Medicine, The Second Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Henan, China
| | - Yunzhu Xi
- Pulmonary and Critical Care Medicine, The Second Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Henan, China
| | - Rong Li
- Pulmonary and Critical Care Medicine, The Second Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Henan, China
| | - Li Li
- Pulmonary and Critical Care Medicine, The Second Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Henan, China
| | - Feifan Li
- Pulmonary and Critical Care Medicine, The Second Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Henan, China
| | - Meiyun Zhao
- Pulmonary and Critical Care Medicine, The Second Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Henan, China
| | - Yongliang Jiang
- Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, Henan, China.
| | - Xu Wu
- Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha, Henan, China; Pulmonary and Critical Care Medicine, The Second Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Henan, China.
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13
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Bai L, Zhu J, Ma W, Li F, Zhao P, Zhang S. Neutrophil extracellular traps are involved in the occurrence of interstitial lung disease in a murine experimental autoimmune myositis model. Clin Exp Immunol 2024; 215:126-136. [PMID: 37681358 PMCID: PMC10847814 DOI: 10.1093/cei/uxad104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 07/25/2023] [Accepted: 09/06/2023] [Indexed: 09/09/2023] Open
Abstract
The excessive formation of neutrophil extracellular traps (NETs) has been demonstrated to be a pathogenic mechanism of idiopathic inflammatory myopathy (IIM)-associated interstitial lung disease (ILD). This study aimed to answer whether an experimental autoimmune myositis (EAM) model can be used to study IIM-ILD and whether NETs participate in the development of EAM-ILD. An EAM mouse model was established using skeletal muscle homogenate and pertussis toxin (PTX). The relationship between NETs and the ILD phenotype was determined via histopathological analysis. As NETs markers, serum cell-free DNA (cfDNA) and serum citrullinated histone 3 (Cit-H3)-DNA were tested. The healthy mouse was injected with PTX intraperitoneally to determine whether PTX intervention could induce NETs formation in vivo. Neutrophils isolated from the peripheral blood of healthy individuals were given different interventions to determine whether PTX and skeletal muscle homogenate can induce neutrophils to form NETs in vitro. EAM-ILD had three pathological phenotypes similar to IIM-ILD. Cit-H3, neutrophil myeloperoxidase, and neutrophil elastase were overexpressed in the lungs of EAM model mice. The serum cfDNA level and Cit-H3-DNA complex level were significantly increased in EAM model mice. Serum cfDNA levels were increased significantly in vivo intervention with PTX in mice. Both PTX and skeletal muscle homogenate-induced neutrophils to form NETs in vitro. EAM-ILD pathological phenotypes are similar to IIM-ILD, and NETs are involved in the development of ILD in a murine model of EAM. Thus, the EAM mouse model can be used as an ideal model targeting NETs to prevent and treat IIM-ILD.
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Affiliation(s)
- Ling Bai
- The Second Clinical Medical College, Lanzhou University, Lanzhou, China
| | - Jiarui Zhu
- Department of Cuiying Biomedical Research Center, Lanzhou University Second Hospital, Lanzhou, China
| | - Wenlan Ma
- The Second Clinical Medical College, Lanzhou University, Lanzhou, China
| | - Feifei Li
- The Second Clinical Medical College, Lanzhou University, Lanzhou, China
| | - Peipei Zhao
- The Second Clinical Medical College, Lanzhou University, Lanzhou, China
| | - Sigong Zhang
- Department of Rheumatology, Lanzhou University Second Hospital, Lanzhou, China
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14
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Zhang Y, Chen K, Wang M, Wang Z, Wang D, Niu J, Yang E, Li Y, Sun Y, Zhao P, Liu W, Lv Y, Hu X. Activated PRKCD-mediated neutrophil extracellular traps pathway may be the prothrombotic mechanism of neutrophils in polycythemia vera patients based on clinical retrospective analysis and bioinformatics study. Int Immunopharmacol 2024; 127:111366. [PMID: 38128308 DOI: 10.1016/j.intimp.2023.111366] [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: 09/07/2023] [Revised: 12/03/2023] [Accepted: 12/09/2023] [Indexed: 12/23/2023]
Abstract
Thrombosis is a major cause of morbimortality in patients with polycythemia vera (PV). Furthermore, neutrophils play a significant role in thrombosis, but their role in the pathogenetic mechanisms of PV is not well characterized. Therefore, we investigated the role and mechanisms by which neutrophils regulate thrombosis in PV patients. Univariate and multivariate logistic regression analysis of clinicopathological factors was performed to determine the independent risk factors of thrombosis in PV. Pearson's correlation analysis was performed to determine the relationship between absolute neutrophil count (ANC) and the hypercoagulable state in PV patients. Bioinformatics analysis of the GSE54644 dataset was used to identify hemostasis-related pathways in neutrophils of PV patients. Weighted gene co-expression network analysis (WGCNA) of the integrated dataset (GSE57793, GSE26049 and GSE61629) was used to identify neutrophils-related genes and pathways associated with thrombosis in PV. Ingenuity pathway analysis (IPA) was performed to identify the differentially activated pathways in PV patients with or without thrombosis using GSE47018 dataset. Our data showed increased ANC in PV patients. Multivariate logistic regression analysis showed that ANC was an independent risk factor for the thrombotic events in PV patients before or at diagnosis. ANC correlated with the hypercoagulable state in PV patients. Neutrophil extracellular traps (NETs) pathway was significantly enriched in the neutrophils of PV patients. IPA results demonstrated that PRKCD-mediated NETs pathway was hyperactivated in PV patients with thrombosis. In summary, ANC was an independent risk factor for the thrombotic events in PV patients before or at diagnosis, and PRKCD-mediated NETs pathway was aberrantly activated in the neutrophils of PV patients and was associated with the thrombotic events.
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Affiliation(s)
- Yanyu Zhang
- Department of Hematology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China; Graduate School, China Academy of Chinese Medical Sciences, Beijing, China
| | - Ke Chen
- Department of Hematology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Mingjing Wang
- Department of Hematology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Ziqing Wang
- Graduate School, Beijing University of Chinese Medicine, Beijing, China
| | - Dehao Wang
- Graduate School, Beijing University of Chinese Medicine, Beijing, China
| | - Jicong Niu
- Department of Hematology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China; Graduate School, China Academy of Chinese Medical Sciences, Beijing, China
| | - Erpeng Yang
- Department of Hematology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China; Graduate School, China Academy of Chinese Medical Sciences, Beijing, China
| | - Yumeng Li
- Department of Hematology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China; Graduate School, China Academy of Chinese Medical Sciences, Beijing, China
| | - Yan Sun
- Graduate School, Beijing University of Chinese Medicine, Beijing, China
| | - Pei Zhao
- Graduate School, Beijing University of Chinese Medicine, Beijing, China
| | - Weiyi Liu
- Department of Hematology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Yan Lv
- Department of Hematology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China.
| | - Xiaomei Hu
- Department of Hematology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China.
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15
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Ding R, Cheng J, Wei S, Qin X, Liu Y, Li H, Xie T, Chai H, Chen Z. Sequential transcriptomic alterations in the cerebral cortex of mice after cerebral venous sinus thrombosis. J Proteomics 2024; 291:105035. [PMID: 37918797 DOI: 10.1016/j.jprot.2023.105035] [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: 07/25/2023] [Revised: 10/17/2023] [Accepted: 10/18/2023] [Indexed: 11/04/2023]
Abstract
To investigate the expression alterations of specific genes that occur after venous stroke, we identified differentially expressed genes (DEGs) between sham and damaged cortical tissues at 2 and 7 days after induction of cerebral venous sinus thrombosis (CVST) model. The profiles of DEGs were analyzed using GO, KEGG, GSEA, and PPI, and the crucial gene was further verified by western blot and immunofluorescence. We found 969 and 883 DEGs at 2 and 7 days after CVST, respectively. A marked increase in biological-process categories, such as immune system process and inflammatory response, and a decrease in neuropeptide signaling pathway were observed both at 2 and 7 days post-CVST. The KEGG pathway was enriched to varying degrees on complement and coagulation cascades, cytokine-cytokine receptor interaction, and multiple immune-inflammatory signaling pathways at 2 and 7 days post-CVST, separately. Furthermore, GSEA highlights the potential roles of the NOD-like receptor signaling pathway and cytokine-cytokine receptor interaction in CVST. Importantly, numerous genes related to KEGG pathways above featured prominently in the PPI network analysis, with IL1b being one of the most conspicuous. These time-dependent alterations in gene profiles and enrichment pathways reveal the unique pathophysiological characteristics of CVST and indicate novel therapeutic targets for venous stroke. SIGNIFICANCE: Cerebral venous sinus thrombosis (CVST) is an underrated and potentially fatal cause of stroke with a reported mortality of 5-10% worldwide. Currently, in addition to anticoagulant and thrombolytic therapy, effective treatments targeting the injured brain parenchyma after CVST remain limited. Besides, accurate diagnostic markers are still sorely lacking. In the present study, we will detect the transcriptomic alterations of the cerebral cortex of mice post-CVST by RNA-sequencing, screen differentially expressed genes and abnormal pathways through bioinformatics methods, analyze the correlation of these signals and CVST pathology, and finally validate the key molecules through western blot and immunofluorescence assays. Collectively, the study aimed to offer a reference for the discovery of specific genes/pathway alterations in the damaged cortical tissues of CVST mice and further reveal the underlying pathogenesis, thereby providing evidence for the diagnosis and treatment of CVST.
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Affiliation(s)
- Rui Ding
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Jing Cheng
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Shanshan Wei
- Department of Oncology, Wuchang Hospital Affiliated to Wuhan University of Science and Technology, Wuhan 430063, China
| | - Xiaohong Qin
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Yaqi Liu
- Department of Cerebrovascular Surgery, The Third Affiliated Hospital of Sun Yat-Sen University, No 600 Tianhe Road, Guangzhou, 510630, Guangdong, China
| | - Haiyan Li
- Department of Cerebrovascular Surgery, The Third Affiliated Hospital of Sun Yat-Sen University, No 600 Tianhe Road, Guangzhou, 510630, Guangdong, China
| | - Teng Xie
- Department of Neurosurgery, Hanchuan Renmin Hospital, Hanchuan, Hubei 431600, China
| | - Huihui Chai
- Department of Cerebrovascular Surgery, The Third Affiliated Hospital of Sun Yat-Sen University, No 600 Tianhe Road, Guangzhou, 510630, Guangdong, China; Department of Neurosurgery, Huashan Hospital, Shanghai Medical College, Fudan University, National Center for Neurological Disorders, National Key Laboratory for Medical Neurobiology, Institutes of Brain Science, Shanghai Key Laboratory of Brain Function and Regeneration, Institute of Neurosurgery, MOE Frontiers Center for Brain Science, Shanghai 200040, China.
| | - Zhibiao Chen
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan 430060, China.
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16
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Salzmann M, Gibler P, Haider P, Brekalo M, Plasenzotti R, Filip T, Nistelberger R, Hartmann B, Wojta J, Hengstenberg C, Podesser BK, Kral-Pointner JB, Hohensinner PJ. Neutrophil extracellular traps induce persistent lung tissue damage via thromboinflammation without altering virus resolution in a mouse coronavirus model. J Thromb Haemost 2024; 22:188-198. [PMID: 37748582 DOI: 10.1016/j.jtha.2023.09.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 09/12/2023] [Accepted: 09/14/2023] [Indexed: 09/27/2023]
Abstract
BACKGROUND During infection, neutrophil extracellular traps (NETs) are associated with severity of pulmonary diseases such as acute respiratory disease syndrome. NETs induce subsequent immune responses, are directly cytotoxic to pulmonary cells, and are highly procoagulant. Anticoagulation treatment was shown to reduce in-hospital mortality, indicating thromboinflammatory complications. However, data are sparsely available on the involvement of NETs in secondary events after virus clearance, which can lead to persistent lung damage and postacute sequelae with chronic fatigue and dyspnea. OBJECTIVES This study focuses on late-phase events using a murine model of viral lung infection with postacute sequelae after virus resolution. METHODS C57BL/6JRj mice were infected intranasally with the betacoronavirus murine coronavirus (MCoV, strain MHV-A95), and tissue samples were collected after 2, 4, and 10 days. For NET modulation, mice were pretreated with OM-85 or GSK484 and DNase I were administered intraperitoneally between days 2 to 5 and days 4 to 7, respectively. RESULTS Rapid, platelet-attributed thrombus formation was followed by a second, late phase of thromboinflammation. This phase was characterized by negligible virus titers but pronounced tissue damage, apoptosis, oxidative DNA damage, and presence of NETs. Inhibition of NETs during the acute phase did not impact virus burden but decreased lung cell apoptosis by 67% and oxidative stress by 94%. Prevention of neutrophil activation by immune training before virus infection reduced damage by 75%, NETs by 31%, and pulmonary thrombi by 93%. CONCLUSION NETs are detrimental inducers of tissue damage during respiratory virus infection but do not contribute to virus clearance.
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Affiliation(s)
- Manuel Salzmann
- Department of Internal Medicine II/Cardiology, Medical University of Vienna, Vienna, Austria; Ludwig Boltzmann Institute for Cardiovascular Research, Vienna, Austria
| | - Patrizia Gibler
- Ludwig Boltzmann Institute for Cardiovascular Research, Vienna, Austria
| | - Patrick Haider
- Department of Internal Medicine II/Cardiology, Medical University of Vienna, Vienna, Austria
| | - Mira Brekalo
- Department of Internal Medicine II/Cardiology, Medical University of Vienna, Vienna, Austria
| | - Roberto Plasenzotti
- Core facility laboratory animal breeding and husbandry, Medical University of Vienna, Vienna, Austria
| | - Thomas Filip
- Core facility laboratory animal breeding and husbandry, Medical University of Vienna, Vienna, Austria
| | - Rebecca Nistelberger
- Core facility laboratory animal breeding and husbandry, Medical University of Vienna, Vienna, Austria
| | - Boris Hartmann
- Institute of Veterinary Disease Control, AGES, Mödling, Austria
| | - Johann Wojta
- Department of Internal Medicine II/Cardiology, Medical University of Vienna, Vienna, Austria; Ludwig Boltzmann Institute for Cardiovascular Research, Vienna, Austria
| | - Christian Hengstenberg
- Department of Internal Medicine II/Cardiology, Medical University of Vienna, Vienna, Austria
| | - Bruno K Podesser
- Ludwig Boltzmann Institute for Cardiovascular Research, Vienna, Austria; Center for Biomedical Research and Translational Surgery, Medical University of Vienna, Vienna, Austria
| | - Julia B Kral-Pointner
- Department of Internal Medicine II/Cardiology, Medical University of Vienna, Vienna, Austria
| | - Philipp J Hohensinner
- Ludwig Boltzmann Institute for Cardiovascular Research, Vienna, Austria; Center for Biomedical Research and Translational Surgery, Medical University of Vienna, Vienna, Austria.
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17
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Nappi F. To Gain Insights into the Pathophysiological Mechanisms of the Thrombo-Inflammatory Process in the Atherosclerotic Plaque. Int J Mol Sci 2023; 25:47. [PMID: 38203218 PMCID: PMC10778759 DOI: 10.3390/ijms25010047] [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: 11/17/2023] [Revised: 12/17/2023] [Accepted: 12/17/2023] [Indexed: 01/12/2024] Open
Abstract
Thromboinflammation, the interplay between thrombosis and inflammation, is a significant pathway that drives cardiovascular and autoimmune diseases, as well as COVID-19. SARS-CoV-2 causes inflammation and blood clotting issues. Innate immune cells have emerged as key modulators of this process. Neutrophils, the most predominant white blood cells in humans, are strategically positioned to promote thromboinflammation. By releasing decondensed chromatin structures called neutrophil extracellular traps (NETs), neutrophils can initiate an organised cell death pathway. These structures are adorned with histones, cytoplasmic and granular proteins, and have cytotoxic, immunogenic, and prothrombotic effects that can hasten disease progression. Protein arginine deiminase 4 (PAD4) catalyses the citrullination of histones and is involved in the release of extracellular DNA (NETosis). The neutrophil inflammasome is also required for this process. Understanding the link between the immunological function of neutrophils and the procoagulant and proinflammatory activities of monocytes and platelets is important in understanding thromboinflammation. This text discusses how vascular blockages occur in thromboinflammation due to the interaction between neutrophil extracellular traps and ultra-large VWF (von Willebrand Factor). The activity of PAD4 is important for understanding the processes that drive thromboinflammation by linking the immunological function of neutrophils with the procoagulant and proinflammatory activities of monocytes and platelets. This article reviews how vaso-occlusive events in thrombo-inflammation occur through the interaction of neutrophil extracellular traps with von Willebrand factor. It highlights the relevance of PAD4 in neutrophil inflammasome assembly and neutrophil extracellular traps in thrombo-inflammatory diseases such as atherosclerosis and cardiovascular disease. Interaction between platelets, VWF, NETs and inflammasomes is critical for the progression of thromboinflammation in several diseases and was recently shown to be active in COVID-19.
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Affiliation(s)
- Francesco Nappi
- Department of Cardiac Surgery, Centre Cardiologique du Nord, 93200 Saint-Denis, France
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18
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Durand NC, Kim HG, Patel VN, Turnbull MT, Siegel JL, Hodge DO, Tawk RG, Meschia JF, Freeman WD, Zubair AC. Mesenchymal Stem Cell Therapy in Acute Intracerebral Hemorrhage: A Dose-Escalation Safety and Tolerability Trial. Neurocrit Care 2023:10.1007/s12028-023-01897-w. [PMID: 38114796 DOI: 10.1007/s12028-023-01897-w] [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: 06/26/2023] [Accepted: 11/15/2023] [Indexed: 12/21/2023]
Abstract
BACKGROUND We conducted a preliminary phase I, dose-escalating, safety, and tolerability trial in the population of patients with acute intracerebral hemorrhage (ICH) by using human allogeneic bone marrow-derived mesenchymal stem/stromal cells. METHODS Eligibility criteria included nontraumatic supratentorial hematoma less than 60 mL and Glasgow Coma Scale score greater than 5. All patients were monitored in the neurosciences intensive care unit for safety and tolerability of mesenchymal stem/stromal cell infusion and adverse events. We also explored the use of cytokines as biomarkers to assess responsiveness to the cell therapy. We screened 140 patients, enrolling 9 who met eligibility criteria into three dose groups: 0.5 million cells/kg, 1 million cells/kg, and 2 million cells/kg. RESULTS Intravenous administration of allogeneic bone marrow-derived mesenchymal stem/stromal cells to treat patients with acute ICH is feasible and safe. CONCLUSIONS Future larger randomized, placebo-controlled ICH studies are necessary to validate this study and establish the effectiveness of this therapeutic approach in the treatment of patients with ICH.
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Affiliation(s)
- Nisha C Durand
- Center for Regenerative Biotherapeutics, Mayo Clinic, 4500 San Pablo Road, Jacksonville, FL, 32224, USA.
- Human Cellular Therapy Laboratory, Mayo Clinic, Jacksonville, FL, USA.
| | - H G Kim
- Clinical Research Intern Scholar Program, Mayo Clinic, Jacksonville, FL, USA
| | - Vishal N Patel
- Division of Neuroradiology, Mayo Clinic, Jacksonville, FL, USA
| | - Marion T Turnbull
- Research Collaborator in the Department of Neurology, Mayo Clinic, Jacksonville, FL, USA
| | - Jason L Siegel
- Department of Critical Care Medicine, Mayo Clinic, Jacksonville, FL, USA
| | - David O Hodge
- Biostatistics Unit, Mayo Clinic, Jacksonville, FL, USA
| | - Rabih G Tawk
- Department of Neurologic Surgery, Mayo Clinic, Jacksonville, FL, USA
| | | | - W David Freeman
- Department of Critical Care Medicine, Mayo Clinic, Jacksonville, FL, USA
- Department of Neurologic Surgery, Mayo Clinic, Jacksonville, FL, USA
- Department of Neurology, Mayo Clinic, Jacksonville, FL, USA
| | - Abba C Zubair
- Center for Regenerative Biotherapeutics, Mayo Clinic, 4500 San Pablo Road, Jacksonville, FL, 32224, USA
- Department of Laboratory Medicine and Pathology, Center for Regenerative Biotherapeutics, Mayo Clinic, Jacksonville, FL, USA
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19
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Liu Y, Wang R, Song C, Ding S, Zuo Y, Yi K, Li N, Wang B, Geng Q. Crosstalk between neutrophil extracellular traps and immune regulation: insights into pathobiology and therapeutic implications of transfusion-related acute lung injury. Front Immunol 2023; 14:1324021. [PMID: 38162674 PMCID: PMC10755469 DOI: 10.3389/fimmu.2023.1324021] [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: 10/18/2023] [Accepted: 11/27/2023] [Indexed: 01/03/2024] Open
Abstract
Transfusion-related acute lung injury (TRALI) is the leading cause of transfusion-associated death, occurring during or within 6 hours after transfusion. Reports indicate that TRALI can be categorized as having or lacking acute respiratory distress syndrome (ARDS) risk factors. There are two types of TRALI in terms of its pathogenesis: antibody-mediated and non-antibody-mediated. The key initiation steps involve the priming and activation of neutrophils, with neutrophil extracellular traps (NETs) being established as effector molecules formed by activated neutrophils in response to various stimuli. These NETs contribute to the production and release of reactive oxygen species (ROS) and participate in the destruction of pulmonary vascular endothelial cells. The significant role of NETs in TRALI is well recognized, offering a potential pathway for TRALI treatment. Moreover, platelets, macrophages, endothelial cells, and complements have been identified as promoters of NET formation. Concurrently, studies have demonstrated that the storage of platelets and concentrated red blood cells (RBC) can induce TRALI through bioactive lipids. In this article, recent clinical and pre-clinical studies on the pathophysiology and pathogenesis of TRALI are reviewed to further illuminate the mechanism through which NETs induce TRALI. This review aims to propose new therapeutic strategies for TRALI, with the hope of effectively improving its poor prognosis.
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Affiliation(s)
- Yi Liu
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, China
| | - Rong Wang
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Congkuan Song
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, China
| | - Song Ding
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, China
| | - Yifan Zuo
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, China
| | - Ke Yi
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, China
| | - Ning Li
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, China
| | - Bo Wang
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, China
| | - Qing Geng
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, China
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20
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Zhang H, Gao J, Tang Y, Jin T, Tao J. Inflammasomes cross-talk with lymphocytes to connect the innate and adaptive immune response. J Adv Res 2023; 54:181-193. [PMID: 36681114 DOI: 10.1016/j.jare.2023.01.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Revised: 10/15/2022] [Accepted: 01/13/2023] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND Innate and adaptive immunity are two different parts of the immune system that have different characteristics and work together to provide immune protection. Inflammasomes are a major part of the innate immune system that are expressed widely in myeloid cells and are responsible for inflammatory responses. Recent studies have shown that inflammasomes are also expressed and activated in lymphocytes, especially in T and B cells, to regulate the adaptive immune response. Activation of inflammasomes is also under the control of lymphocytes. Therefore, we propose that inflammasomes act as a bridge and they provide crosstalk between the innate and adaptive immune systems to obtain a fine balance in immune responses. AIM OF REVIEW This review systematially summarizes the interaction between inflammasomes and lymphocytes and describes the crosstalk between the innate and adaptive immune systems induced by inflammasomes, with the aim of providing new directions and important areas for further research. KEY SCIENTIFIC CONCEPTS OF REVIEW When considering the novel function of inflammasomes in various lymphocytes, attention should be given to the activity of specific inflammasomes in studies of lymphocyte function. Moreover, research on the function of various inflammasomes in lymphocytes will help advance knowledge on the mechanisms and treatment of various diseases, including autoimmune diseases and tumors. In addition, when studying inflammatory responses, inflammasomes in both lymphocytes and myeloid cells need to be considered.
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Affiliation(s)
- Hongliang Zhang
- Department of Rheumatology and Immunology, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China; College of Medicine and Health, Lishui University, No. 1 Xueyuan Road, Liandu District, Lishui 323000, China
| | - Jie Gao
- Department of Rheumatology and Immunology, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Yujie Tang
- Department of Rheumatology and Immunology, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Tengchuan Jin
- Laboratory of Structural Immunology, CAS Key Laboratory of Innate Immunity and Chronic Disease, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China.
| | - Jinhui Tao
- Department of Rheumatology and Immunology, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China.
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21
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Kumar R, Patil G, Dayal S. NLRP3-Induced NETosis: A Potential Therapeutic Target for Ischemic Thrombotic Diseases? Cells 2023; 12:2709. [PMID: 38067137 PMCID: PMC10706381 DOI: 10.3390/cells12232709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 11/22/2023] [Accepted: 11/24/2023] [Indexed: 12/18/2023] Open
Abstract
Ischemic thrombotic disease, characterized by the formation of obstructive blood clots within arteries or veins, is a condition associated with life-threatening events, such as stroke, myocardial infarction, deep vein thrombosis, and pulmonary embolism. The conventional therapeutic strategy relies on treatments with anticoagulants that unfortunately pose an inherent risk of bleeding complications. These anticoagulants primarily target clotting factors, often overlooking upstream events, including the release of neutrophil extracellular traps (NETs). Neutrophils are integral components of the innate immune system, traditionally known for their role in combating pathogens through NET formation. Emerging evidence has now revealed that NETs contribute to a prothrombotic milieu by promoting platelet activation, increasing thrombin generation, and providing a scaffold for clot formation. Additionally, NET components enhance clot stability and resistance to fibrinolysis. Clinical and preclinical studies have underscored the mechanistic involvement of NETs in the pathogenesis of thrombotic complications, since the clots obtained from patients and experimental models consistently exhibit the presence of NETs. Given these insights, the inhibition of NETs or NET formation is emerging as a promising therapeutic approach for ischemic thrombotic diseases. Recent investigations also implicate a role for the nucleotide-binding oligomerization domain (NOD)-like receptor family pyrin domain-containing 3 (NLRP3) inflammasome as a mediator of NETosis and thrombosis, suggesting that NLRP3 inhibition may also hold potential for mitigating thrombotic events. Therefore, future preclinical and clinical studies aimed at identifying and validating NLRP3 inhibition as a novel therapeutic intervention for thrombotic disorders are imperative.
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Affiliation(s)
- Rahul Kumar
- Department of Internal Medicine, University of Iowa Carver College of Medicine, Iowa City, IA 52242, USA; (R.K.); (G.P.)
- Department of Biotechnology, GITAM School of Sciences, GITAM (Deemed to be) University, Visakhapatnam 530045, India
| | - Gokul Patil
- Department of Internal Medicine, University of Iowa Carver College of Medicine, Iowa City, IA 52242, USA; (R.K.); (G.P.)
| | - Sanjana Dayal
- Department of Internal Medicine, University of Iowa Carver College of Medicine, Iowa City, IA 52242, USA; (R.K.); (G.P.)
- Holden Comprehensive Cancer Center, University of Iowa Carver College of Medicine, Iowa City, IA 52242, USA
- Iowa City VA Healthcare System, Iowa City, IA 52246, USA
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22
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Du C, Cai N, Dong J, Xu C, Wang Q, Zhang Z, Li J, Huang C, Ma T. Uncovering the role of cytoskeleton proteins in the formation of neutrophil extracellular traps. Int Immunopharmacol 2023; 123:110607. [PMID: 37506501 DOI: 10.1016/j.intimp.2023.110607] [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: 05/03/2023] [Revised: 06/23/2023] [Accepted: 07/03/2023] [Indexed: 07/30/2023]
Abstract
Neutrophils are a type of lymphocyte involved in innate immune defense. In response to specific stimuli, these phagocytic cells undergo a unique form of cell death, NETosis, during which they release neutrophil extracellular traps (NETs) composed of modified chromatin structures decorated with cytoplasmic and granular proteins. Multiple proteins and pathways have been implicated in the formation of NETs. The cytoskeleton, an interconnected network of filamentous polymers and regulatory proteins, plays a crucial role in resisting deformation, transporting intracellular cargo, and changing shape during movement of eukaryotic cells. It may also have evolved to defend eukaryotic organisms against infection. Recent research focuses on understanding the mechanisms underlying NETs formation and how cytoskeletal networks contribute to this process, by identifying enzymes that trigger NETosis or interact with NETs and influence cellular behavior through cytoskeletal dynamics. An enhanced understanding of the complex relationship between the cytoskeleton and NET formation will provide a framework for future research and the development of targeted therapeutic strategies, and supports the notion that the long-lived cytoskeleton structures may have a lasting impact on this area of research.
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Affiliation(s)
- Changlin Du
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Na Cai
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Jiahui Dong
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Chuanting Xu
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Qi Wang
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Zhenming Zhang
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Jun Li
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Cheng Huang
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China.
| | - Taotao Ma
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China.
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23
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Heger LA, Schommer N, Fukui S, Van Bruggen S, Sheehy CE, Chu L, Rajagopal S, Sivanandhan D, Ewenstein B, Wagner DD. Inhibition of protein arginine deiminase 4 prevents inflammation-mediated heart failure in arthritis. Life Sci Alliance 2023; 6:e202302055. [PMID: 37500179 PMCID: PMC10374941 DOI: 10.26508/lsa.202302055] [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: 03/23/2023] [Revised: 07/13/2023] [Accepted: 07/14/2023] [Indexed: 07/29/2023] Open
Abstract
Rheumatoid arthritis is a prototypic inflammatory condition with affected patients being at greater risk of incident heart failure (HF). Targeting innate immune cell function in the pathogenesis of HF bears the potential to guide the development of future therapies. A collagen-induced arthritis (CIA) model in DBA/1 J mice was used to generate arthritis. Mice with CIA developed concentric hypertrophic myocardial remodeling, left ventricular (LV) diastolic dysfunction, and HF with elevated plasma B-type natriuretic peptide levels but preserved LV ejection fraction. Key features of HF in CIA were increased infiltration of activated neutrophils, deposition of neutrophil extracellular traps in the myocardium, and increased tissue levels of the proinflammatory cytokine IL-1β. Specific inhibition of protein arginine deiminase 4 (PAD4) by an orally available inhibitor (JBI-589), administered after the onset of clinical arthritis, prevented HF with reduced neutrophil infiltration. We identify PAD4-mediated neutrophil activation and recruitment as the key thromboinflammatory pathway driving HF development in arthritis. Targeting PAD4 may be a viable therapeutic approach for the prevention of HF secondary to chronic inflammation.
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Affiliation(s)
- Lukas A Heger
- Program in Cellular and Molecular Medicine, Boston Children's Hospital, Boston, MA, USA
- Department of Pediatrics, Harvard Medical School, Boston, MA, USA
- Departement of Cardiology and Angiology, University Hospital Freiburg Bad Krozingen, Freiburg, Germany
| | - Nicolas Schommer
- Program in Cellular and Molecular Medicine, Boston Children's Hospital, Boston, MA, USA
- Departement of Cardiology and Angiology, University Hospital Freiburg Bad Krozingen, Freiburg, Germany
| | - Shoichi Fukui
- Program in Cellular and Molecular Medicine, Boston Children's Hospital, Boston, MA, USA
- Department of Pediatrics, Harvard Medical School, Boston, MA, USA
| | - Stijn Van Bruggen
- Program in Cellular and Molecular Medicine, Boston Children's Hospital, Boston, MA, USA
- Center of Molecular and Vascular Biology, Department of Cardiovascular Science, KU Leuven, Leuven, Belgium
| | - Casey E Sheehy
- Program in Cellular and Molecular Medicine, Boston Children's Hospital, Boston, MA, USA
| | - Long Chu
- Program in Cellular and Molecular Medicine, Boston Children's Hospital, Boston, MA, USA
| | | | | | - Bruce Ewenstein
- Program in Cellular and Molecular Medicine, Boston Children's Hospital, Boston, MA, USA
- Department of Pediatrics, Harvard Medical School, Boston, MA, USA
| | - Denisa D Wagner
- Program in Cellular and Molecular Medicine, Boston Children's Hospital, Boston, MA, USA
- Department of Pediatrics, Harvard Medical School, Boston, MA, USA
- Division of Hematology/Oncology, Boston Children's Hospital, Boston, MA, USA
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24
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Scavo MP, Negro R, Arrè V, Depalo N, Carrieri L, Rizzi F, Mastrogiacomo R, Serino G, Notarnicola M, De Nunzio V, Lippolis T, Pesole PL, Coletta S, Armentano R, Curri ML, Giannelli G. The oleic/palmitic acid imbalance in exosomes isolated from NAFLD patients induces necroptosis of liver cells via the elongase-6/RIP-1 pathway. Cell Death Dis 2023; 14:635. [PMID: 37752143 PMCID: PMC10522611 DOI: 10.1038/s41419-023-06161-9] [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: 05/30/2023] [Revised: 09/06/2023] [Accepted: 09/15/2023] [Indexed: 09/28/2023]
Abstract
Excessive toxic lipid accumulation in hepatocytes underlies the development of non-alcoholic fatty liver disease (NAFLD), phenotypically characterized by necrosis and steato-fibrosis, whose molecular mechanism is not yet fully understood. Patients with NAFLD display an imbalanced palmitic (PA) to oleic acid (OA) ratio. Moreover, increasing experimental evidence points out a relevant involvement of the exosomal content in disease progression. Aim of the study was to highlight the PA/OA imbalance within circulating exosomes, the subsequent intracellular alterations, and the impact on NALFD. Liver cells were challenged with exosomes isolated from both healthy subjects and NAFLD patients. The exosomal PA/OA ratio was artificially modified, and biological effects were evaluated. A NAFLD-derived exosomal PA/OA imbalance impacts liver cell cycle and cell viability. OA-modified NAFLD-derived exosomes restored cellular viability and proliferation, whereas the inclusion of PA into healthy subjects-derived exosomes negatively affected cell viability. Moreover, while OA reduced the phosphorylation and activation of the necroptosis marker, Receptor-interacting protein 1 (phospho-RIP-1), PA induced the opposite outcome, alongside increased levels of stress fibers, such as vimentin and fibronectin. Administration of NAFLD-derived exosomes led to increased expression of Elongase 6 (ELOVL6), Stearoyl-CoA desaturase 1 (SCD1), Tumor necrosis factor α (TNF-α), Mixed-lineage-kinase-domain-like-protein (MLKL) and RIP-1 in the hepatocytes, comparable to mRNA levels in the hepatocytes of NAFLD patients reported in the Gene Expression Omnibus (GEO) database. Genetic and pharmacological abrogation of ELOVL6 elicited a reduced expression of downstream molecules TNF-α, phospho-RIP-1, and phospho-MLKL upon administration of NAFLD-derived exosomes. Lastly, mice fed with high-fat diet exhibited higher phospho-RIP-1 than mice fed with control diet. Targeting the Elongase 6-RIP-1 signaling pathway offers a novel therapeutic approach for the treatment of the NALFD-induced exosomal PA/OA imbalance.
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Affiliation(s)
- Maria Principia Scavo
- Personalized Medicine Laboratory, National Institute of Gastroenterology "S. de Bellis", IRCCS Research Hospital, Via Turi 27, Castellana Grotte, 70013, Bari, Italy.
| | - Roberto Negro
- Personalized Medicine Laboratory, National Institute of Gastroenterology "S. de Bellis", IRCCS Research Hospital, Via Turi 27, Castellana Grotte, 70013, Bari, Italy.
| | - Valentina Arrè
- Personalized Medicine Laboratory, National Institute of Gastroenterology "S. de Bellis", IRCCS Research Hospital, Via Turi 27, Castellana Grotte, 70013, Bari, Italy
| | - Nicoletta Depalo
- Institute for Chemical-Physical Processes (IPCF)-CNR SS Bari, Via Orabona 4, 70125, Bari, Italy
| | - Livianna Carrieri
- Personalized Medicine Laboratory, National Institute of Gastroenterology "S. de Bellis", IRCCS Research Hospital, Via Turi 27, Castellana Grotte, 70013, Bari, Italy
| | - Federica Rizzi
- Institute for Chemical-Physical Processes (IPCF)-CNR SS Bari, Via Orabona 4, 70125, Bari, Italy
| | - Rita Mastrogiacomo
- Institute for Chemical-Physical Processes (IPCF)-CNR SS Bari, Via Orabona 4, 70125, Bari, Italy
- Dipartimento di Chimica, Università degli Studi di Bari Aldo Moro, Via Orabona 4, 70125, Bari, Italy
| | - Grazia Serino
- Experimental Immunopathology Laboratory, National Institute of Gastroenterology "S. de Bellis" IRCCS Research Hospital, Via Turi 27, Castellana Grotte, 70013, Bari, Italy
| | - Maria Notarnicola
- Laboratory of Nutritional Biochemistry, National Institute of Gastroenterology "S. de Bellis", IRCCS Research Hospital, Via Turi 27, Castellana Grotte, 70013, Bari, Italy
| | - Valentina De Nunzio
- Laboratory of Nutritional Biochemistry, National Institute of Gastroenterology "S. de Bellis", IRCCS Research Hospital, Via Turi 27, Castellana Grotte, 70013, Bari, Italy
| | - Tamara Lippolis
- Laboratory of Nutritional Biochemistry, National Institute of Gastroenterology "S. de Bellis", IRCCS Research Hospital, Via Turi 27, Castellana Grotte, 70013, Bari, Italy
| | - Pasqua Letizia Pesole
- Department of Pathology, "S. de Bellis" IRCCS Research Hospital, Via Turi 27, Castellana Grotte, 70013, Bari, Italy
| | - Sergio Coletta
- Department of Pathology, "S. de Bellis" IRCCS Research Hospital, Via Turi 27, Castellana Grotte, 70013, Bari, Italy
| | - Raffaele Armentano
- Department of Pathology, "S. de Bellis" IRCCS Research Hospital, Via Turi 27, Castellana Grotte, 70013, Bari, Italy
| | - Maria Lucia Curri
- Institute for Chemical-Physical Processes (IPCF)-CNR SS Bari, Via Orabona 4, 70125, Bari, Italy
- Dipartimento di Chimica, Università degli Studi di Bari Aldo Moro, Via Orabona 4, 70125, Bari, Italy
| | - Gianluigi Giannelli
- Scientific Direction, National Institute of Gastroenterology "S. de Bellis" IRCCS Research Hospital, Via Turi 27, Castellana Grotte, 70013, Bari, Italy
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25
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Li X, Xiao S, Filipczak N, Yalamarty SSK, Shang H, Zhang J, Zheng Q. Role and Therapeutic Targeting Strategies of Neutrophil Extracellular Traps in Inflammation. Int J Nanomedicine 2023; 18:5265-5287. [PMID: 37746050 PMCID: PMC10516212 DOI: 10.2147/ijn.s418259] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2023] [Accepted: 08/29/2023] [Indexed: 09/26/2023] Open
Abstract
Neutrophil extracellular traps (NETs) are large DNA reticular structures secreted by neutrophils and decorated with histones and antimicrobial proteins. As a key mechanism for neutrophils to resist microbial invasion, NETs play an important role in the killing of microorganisms (bacteria, fungi, and viruses). Although NETs are mostly known for mediating microbial killing, increasing evidence suggests that excessive NETs induced by stimulation of physical and chemical components, microorganisms, and pathological factors can exacerbate inflammation and organ damage. This review summarizes the induction and role of NETs in inflammation and focuses on the strategies of inhibiting NETosis and the mechanisms involved in pathogen evasion of NETs. Furthermore, herbal medicine inhibitors and nanodelivery strategies improve the efficiency of inhibition of excessive levels of NETs.
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Affiliation(s)
- Xiang Li
- National Pharmaceutical Engineering Center for Solid Preparation in Chinese Herbal Medicine, Jiangxi University of Chinese Medicine, Nanchang, Jiangxi, People’s Republic of China
| | - Shanghua Xiao
- Key Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Chinese Medicine, Nanchang, Jiangxi, People’s Republic of China
| | - Nina Filipczak
- Center for Pharmaceutical Biotechnology and Nanomedicine, Northeastern University, Boston, MA, USA
| | | | - Hongming Shang
- Department of Biochemistry & Chemical Biology, Vanderbilt University, Nashville, TN, USA
| | - Jing Zhang
- Key Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Chinese Medicine, Nanchang, Jiangxi, People’s Republic of China
| | - Qin Zheng
- Key Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Chinese Medicine, Nanchang, Jiangxi, People’s Republic of China
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26
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Potere N, Garrad E, Kanthi Y, Di Nisio M, Kaplanski G, Bonaventura A, Connors JM, De Caterina R, Abbate A. NLRP3 inflammasome and interleukin-1 contributions to COVID-19-associated coagulopathy and immunothrombosis. Cardiovasc Res 2023; 119:2046-2060. [PMID: 37253117 PMCID: PMC10893977 DOI: 10.1093/cvr/cvad084] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 01/30/2023] [Accepted: 02/21/2023] [Indexed: 06/01/2023] Open
Abstract
Immunothrombosis-immune-mediated activation of coagulation-is protective against pathogens, but excessive immunothrombosis can result in pathological thrombosis and multiorgan damage, as in severe coronavirus disease 2019 (COVID-19). The NACHT-, LRR-, and pyrin domain-containing protein 3 (NLRP3) inflammasome produces major proinflammatory cytokines of the interleukin (IL)-1 family, IL-1β and IL-18, and induces pyroptotic cell death. Activation of the NLRP3 inflammasome pathway also promotes immunothrombotic programs including release of neutrophil extracellular traps and tissue factor by leukocytes, and prothrombotic responses by platelets and the vascular endothelium. NLRP3 inflammasome activation occurs in patients with COVID-19 pneumonia. In preclinical models, NLRP3 inflammasome pathway blockade restrains COVID-19-like hyperinflammation and pathology. Anakinra, recombinant human IL-1 receptor antagonist, showed safety and efficacy and is approved for the treatment of hypoxaemic COVID-19 patients with early signs of hyperinflammation. The non-selective NLRP3 inhibitor colchicine reduced hospitalization and death in a subgroup of COVID-19 outpatients but is not approved for the treatment of COVID-19. Additional COVID-19 trials testing NLRP3 inflammasome pathway blockers are inconclusive or ongoing. We herein outline the contribution of immunothrombosis to COVID-19-associated coagulopathy, and review preclinical and clinical evidence suggesting an engagement of the NLRP3 inflammasome pathway in the immunothrombotic pathogenesis of COVID-19. We also summarize current efforts to target the NLRP3 inflammasome pathway in COVID-19, and discuss challenges, unmet gaps, and the therapeutic potential that inflammasome-targeted strategies may provide for inflammation-driven thrombotic disorders including COVID-19.
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Affiliation(s)
- Nicola Potere
- Department of Medicine and Ageing Sciences, ‘G. d’Annunzio’ University, Via Luigi Polacchi 11, Chieti 66100, Italy
| | - Evan Garrad
- Laboratory of Vascular Thrombosis and Inflammation, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, USA
- University of Missouri School of Medicine, Columbia, MO, USA
| | - Yogendra Kanthi
- Laboratory of Vascular Thrombosis and Inflammation, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, USA
| | - Marcello Di Nisio
- Department of Medicine and Ageing Sciences, ‘G. d’Annunzio’ University, Via Luigi Polacchi 11, Chieti 66100, Italy
| | - Gilles Kaplanski
- Aix-Marseille Université, INSERM, INRAE, Marseille, France
- Division of Internal Medicine and Clinical Immunology, Assistance Publique - Hôpitaux de Marseille, Hôpital Conception, Aix-Marseille Université, Marseille, France
| | - Aldo Bonaventura
- Department of Internal Medicine, Medicina Generale 1, Medical Center, Ospedale di Circolo e Fondazione Macchi, ASST Sette Laghi, Varese, Italy
| | - Jean Marie Connors
- Division of Hematology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Raffaele De Caterina
- University Cardiology Division, Pisa University Hospital, Pisa, Italy
- Chair and Postgraduate School of Cardiology, University of Pisa, Pisa, Italy
- Fondazione Villa Serena per la Ricerca, Città Sant’Angelo, Pescara, Italy
| | - Antonio Abbate
- Robert M. Berne Cardiovascular Research Center, Department of Medicine, Division of Cardiovascular Medicine, University of Virginia, 415 Lane Rd (MR5), PO Box 801394, Charlottesville, VA 22903, USA
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Potere N, Abbate A, Kanthi Y, Carrier M, Toldo S, Porreca E, Di Nisio M. Inflammasome Signaling, Thromboinflammation, and Venous Thromboembolism. JACC Basic Transl Sci 2023; 8:1245-1261. [PMID: 37791298 PMCID: PMC10544095 DOI: 10.1016/j.jacbts.2023.03.017] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 03/06/2023] [Accepted: 03/07/2023] [Indexed: 10/05/2023]
Abstract
Venous thromboembolism (VTE) remains a major health burden despite anticoagulation advances, suggesting incomplete management of pathogenic mechanisms. The NLRP3 (NACHT-, LRR- and pyrin domain-containing protein 3) inflammasome, interleukin (IL)-1, and pyroptosis are emerging contributors to the inflammatory pathogenesis of VTE. Inflammasome pathway activation occurs in patients with VTE. In preclinical models, inflammasome signaling blockade reduces venous thrombogenesis and vascular injury, suggesting that this therapeutic approach may potentially maximize anticoagulation benefits, protecting from VTE occurrence, recurrence, and ensuing post-thrombotic syndrome. The nonselective NLRP3 inhibitor colchicine and the anti-IL-1β agent canakinumab reduce atherothrombosis without increasing bleeding. Rosuvastatin reduces primary venous thrombotic events at least in part through lipid-lowering independent mechanisms, paving the way to targeted anti-inflammatory strategies in VTE. This review outlines recent preclinical and clinical evidence supporting a role for inflammasome pathway activation in venous thrombosis, and discusses the, yet unexplored, therapeutic potential of modulating inflammasome signaling to prevent and manage VTE.
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Affiliation(s)
- Nicola Potere
- Department of Medicine and Ageing Sciences, “G. d'Annunzio” University, Chieti, Italy
| | - Antonio Abbate
- Robert M. Berne Cardiovascular Research Center, Department of Medicine, Division of Cardiovascular Medicine, University of Virginia, Charlottesville, Virginia, USA
| | - Yogendra Kanthi
- Vascular Thrombosis & Inflammation Section, Division of Intramural Research, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Marc Carrier
- Department of Medicine, Ottawa Hospital Research Institute, University of Ottawa, Ottawa, Ontario, Canada
| | - Stefano Toldo
- Robert M. Berne Cardiovascular Research Center, Department of Medicine, Division of Cardiovascular Medicine, University of Virginia, Charlottesville, Virginia, USA
| | - Ettore Porreca
- Department of Innovative Technologies in Medicine and Dentistry, School of Medicine and Health Sciences, “G. d'Annunzio” University, Chieti, Italy
| | - Marcello Di Nisio
- Department of Medicine and Ageing Sciences, “G. d'Annunzio” University, Chieti, Italy
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Van Bruggen S, Jarrot PA, Thomas E, Sheehy CE, Silva CMS, Hsu AY, Cunin P, Nigrovic PA, Gomes ER, Luo HR, Waterman CM, Wagner DD. NLRP3 is essential for neutrophil polarization and chemotaxis in response to leukotriene B4 gradient. Proc Natl Acad Sci U S A 2023; 120:e2303814120. [PMID: 37603754 PMCID: PMC10468616 DOI: 10.1073/pnas.2303814120] [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: 03/10/2023] [Accepted: 07/21/2023] [Indexed: 08/23/2023] Open
Abstract
Neutrophil recruitment to sites of infection and inflammation is an essential process in the early innate immune response. Upon activation, a subset of neutrophils rapidly assembles the multiprotein complex known as the NLRP3 inflammasome. The NLRP3 inflammasome forms at the microtubule organizing center, which promotes the formation of interleukin (IL)-1β and IL-18, essential cytokines in the immune response. We recently showed that mice deficient in NLRP3 (NLRP3-/-) have reduced neutrophil recruitment to the peritoneum in a model of thioglycolate-induced peritonitis. Here, we tested the hypothesis that this diminished recruitment could be, in part, the result of defects in neutrophil chemotaxis. We find that NLRP3-/- neutrophils show loss of cell polarization, as well as reduced directionality and velocity of migration toward increasing concentrations of leukotriene B4 (LTB4) in a chemotaxis assay in vitro, which was confirmed through intravital microscopy of neutrophil migration toward a laser-induced burn injury of the liver. Furthermore, pharmacologically blocking NLRP3 inflammasome assembly with MCC950 in vitro reduced directionality but preserved nondirectional movement, indicating that inflammasome assembly is specifically required for polarization and directional chemotaxis, but not cell motility per se. In support of this, pharmacological breakdown of the microtubule cytoskeleton via nocodazole treatment induced cell polarization and restored nondirectional cell migration in NLRP3-deficient neutrophils in the LTB4 gradient. Therefore, NLRP3 inflammasome assembly is required for establishment of cell polarity to guide the directional chemotactic migration of neutrophils.
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Affiliation(s)
- Stijn Van Bruggen
- Program in Cellular and Molecular Medicine, Boston Children’s Hospital, Boston, MA02115
- Department of Pediatrics, Harvard Medical School, Boston, MA02115
- Whitman Center, Marine Biological Laboratory, Chicago University, Woods Hole, MA02543
| | - Pierre-André Jarrot
- Program in Cellular and Molecular Medicine, Boston Children’s Hospital, Boston, MA02115
- Department of Pediatrics, Harvard Medical School, Boston, MA02115
| | - Eline Thomas
- Department of Life Science Technology, Imec, Leuven3001, Belgium
- Department of Biophysics, Katholieke Universiteit Leuven, Leuven3000, Belgium
| | - Casey E. Sheehy
- Program in Cellular and Molecular Medicine, Boston Children’s Hospital, Boston, MA02115
| | - Camila M. S. Silva
- Program in Cellular and Molecular Medicine, Boston Children’s Hospital, Boston, MA02115
- Department of Pediatrics, Harvard Medical School, Boston, MA02115
| | - Alan Y. Hsu
- Department of Pathology, Harvard Medical School, Boston, MA02115
- Department of Pathology, Dana-Farber/Harvard Cancer Center, Boston, MA02115
- Department of Laboratory Medicine, Boston Children’s Hospital, Boston, MA02115
| | - Pierre Cunin
- Division of Immunology, Department of Pediatrics, Boston Children’s Hospital, Harvard Medical School, Boston, MA02115
| | - Peter A. Nigrovic
- Division of Immunology, Department of Pediatrics, Boston Children’s Hospital, Harvard Medical School, Boston, MA02115
- Division of Rheumatology, Inflammation, and Immunity, Department of Medicine, Brigham and Women’s Hospital, Boston, MA02115
| | - Edgar R. Gomes
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina da Universidade de Lisboa, Lisbon1649-028, Portugal
| | - Hongbo R. Luo
- Department of Pathology, Harvard Medical School, Boston, MA02115
- Department of Pathology, Dana-Farber/Harvard Cancer Center, Boston, MA02115
- Department of Laboratory Medicine, Boston Children’s Hospital, Boston, MA02115
| | - Clare M. Waterman
- Whitman Center, Marine Biological Laboratory, Chicago University, Woods Hole, MA02543
- Cell Biology and Physiology Center, National Heart, Lung, and Blood Institute of the NIH, Bethesda, MD20892
| | - Denisa D. Wagner
- Program in Cellular and Molecular Medicine, Boston Children’s Hospital, Boston, MA02115
- Department of Pediatrics, Harvard Medical School, Boston, MA02115
- Whitman Center, Marine Biological Laboratory, Chicago University, Woods Hole, MA02543
- Division of Hematology/Oncology, Boston Children’s Hospital, Boston, MA02115
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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: 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: 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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Li S, Wang H, Shao Q. The central role of neutrophil extracellular traps (NETs) and by-products in COVID-19 related pulmonary thrombosis. Immun Inflamm Dis 2023; 11:e949. [PMID: 37647446 PMCID: PMC10461423 DOI: 10.1002/iid3.949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 06/26/2023] [Accepted: 07/08/2023] [Indexed: 09/01/2023] Open
Abstract
Extracellular trap networks (neutrophil extracellular traps [NETs]) of polymorphonuclear neutrophils are mesh-like substances that prevent the spread of pathogens. They primarily consist of DNA skeletons, histones, granule components, and cytoplasmic proteins. NETs formation requires a certain environment and there are different pathways for NETs production. However, it is still not clear how severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) promotes NETs. NETs exert antiinflammatory effects through immune response, while they can also lead to certain adverse outcomes, such as the development of immunothrombosis. Coronavirus disease 2019 (COVID-19) is an inflammatory reaction affecting various organs caused by SARS-CoV-2, especially the lungs. NETs production and disease severity are linked with unique neutrophil clusters by single-cell RNA sequencing. NETs might exert an anti-inflammatory role in the initial stage of lung tissue inflammation. Nevertheless, numerous studies and cases have shown that they can also result in pulmonary thrombosis. There is mounting evidence that NETs are tightly related with COVID-19 pulmonary thrombosis, and many studies on the mechanisms are involved. The role and mechanism of NETs in the development of pulmonary thrombosis will be the main topics of this manuscript. Additionally, we address the potential targeting of NETs in COVID-19 patients.
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Affiliation(s)
- Shi Li
- Department of ImmunologySchool of Medicine, Jiangsu UniversityZhenjiangJiangsuChina
| | - Hui Wang
- Department of ImmunologySchool of Medicine, Jiangsu UniversityZhenjiangJiangsuChina
| | - Qixiang Shao
- Department of ImmunologySchool of Medicine, Jiangsu UniversityZhenjiangJiangsuChina
- Department of Medical Microbiology and Immunology, Institute of Medical Genetics and Reproductive Immunity, School of Medical Science and Laboratory MedicineJiangsu College of NursingHuai'anJiangsuChina
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31
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Ma W, Zhu J, Bai L, Zhao P, Li F, Zhang S. The role of neutrophil extracellular traps and proinflammatory damage-associated molecular patterns in idiopathic inflammatory myopathies. Clin Exp Immunol 2023; 213:202-208. [PMID: 37289984 PMCID: PMC10361739 DOI: 10.1093/cei/uxad059] [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: 02/11/2023] [Revised: 04/13/2023] [Accepted: 05/25/2023] [Indexed: 06/10/2023] Open
Abstract
Idiopathic inflammatory myopathies (IIMs) are a group of systemic autoimmune diseases characterized by immune-mediated muscle injury. Abnormal neutrophil extracellular traps (NETs) can be used as a biomarker of IIM disease activity, but the mechanism of NET involvement in IIMs needs to be elucidated. Important components of NETs, including high-mobility group box 1, DNA, histones, extracellular matrix, serum amyloid A, and S100A8/A9, act as damage-associated molecular patterns (DAMPs) to promote inflammation in IIMs. NETs can act on different cells to release large amounts of cytokines and activate the inflammasome, which can subsequently aggravate the inflammatory response. Based on the idea that NETs may be proinflammatory DAMPs of IIMs, we describe the role of NETs, DAMPs, and their interaction in the pathogenesis of IIMs and discuss the possible targeted treatment strategies in IIMs.
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Affiliation(s)
- Wenlan Ma
- The Second Clinical Medical College, Lanzhou University, Lanzhou, China
| | - Jiarui Zhu
- Department of Cuiying Biomedical Research Center, Lanzhou University Second Hospital, Lanzhou, China
| | - Ling Bai
- The Second Clinical Medical College, Lanzhou University, Lanzhou, China
| | - Peipei Zhao
- The Second Clinical Medical College, Lanzhou University, Lanzhou, China
| | - Feifei Li
- The Second Clinical Medical College, Lanzhou University, Lanzhou, China
| | - Sigong Zhang
- Department of Rheumatology, Lanzhou University Second Hospital, Lanzhou, China
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Wu Y, Wen X, Xia Y, Yu X, Lou Y. LncRNAs and regulated cell death in tumor cells. Front Oncol 2023; 13:1170336. [PMID: 37313458 PMCID: PMC10258353 DOI: 10.3389/fonc.2023.1170336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Accepted: 05/17/2023] [Indexed: 06/15/2023] Open
Abstract
Regulated Cell Death (RCD) is a mode of cell death that occurs through drug or genetic intervention. The regulation of RCDs is one of the significant reasons for the long survival time of tumor cells and poor prognosis of patients. Long non-coding RNAs (lncRNAs) which are involved in the regulation of tumor biological processes, including RCDs occurring on tumor cells, are closely related to tumor progression. In this review, we describe the mechanisms of eight different RCDs which contain apoptosis, necroptosis, pyroptosis, NETosis, entosis, ferroptosis, autosis and cuproptosis. Meanwhile, their respective roles in the tumor are aggregated. In addition, we outline the literature that is related to the regulatory relationships between lncRNAs and RCDs in tumor cells, which is expected to provide new ideas for tumor diagnosis and treatment.
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Abstract
The CANTOS (Canakinumab Anti-inflammatory Thrombosis Outcome Study) and colchicine trials suggest an important role of inflammasomes and their major product IL-1β (interleukin 1β) in human atherosclerotic cardiovascular disease. Moreover, studies in mouse models indicate a causal role of inflammasomes and IL-1β in atherosclerosis. However, recent studies have led to a more granular view of the role of inflammasomes in atherosclerosis. Studies in hyperlipidemic mouse models suggest that prominent activation of the NLRP3 inflammasome requires a second hit such as defective cholesterol efflux, defective DNA repair, clonal hematopoiesis or diabetes. Similarly in humans some mutations promoting clonal hematopoiesis increase coronary artery disease risk in part by promoting inflammasome activation. Recent studies in mice and humans point to a wider role of the AIM2 (absent in melanoma 2) inflammasome in promoting cardiovascular disease including in some forms of clonal hematopoiesis and diabetes. These developments suggest a precision medicine approach in which treatments targeting inflammasomes or IL-1β might be best employed in clinical settings involving increased inflammasome activation.
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Affiliation(s)
- Alan R Tall
- Division of Molecular Medicine, Department of Medicine, Columbia University Irving Medical Center, New York (A.R.T.)
| | - Karin E Bornfeldt
- Division of Metabolism, Endocrinology and Nutrition, Department of Medicine, University of Washington Medicine Diabetes Institute, University of Washington, Seattle (K.E.B.)
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Zdanyte M, Borst O, Münzer P. NET-(works) in arterial and venous thrombo-occlusive diseases. Front Cardiovasc Med 2023; 10:1155512. [PMID: 37283578 PMCID: PMC10239889 DOI: 10.3389/fcvm.2023.1155512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 05/02/2023] [Indexed: 06/08/2023] Open
Abstract
Formation of Neutrophil Extracellular Traps (NETosis), accompanied by the release of extracellular decondensed chromatin and pro-inflammatory as well as pro-thrombotic factors, is a pivotal element in the development and progression of thrombo-occlusive diseases. While the process of NETosis is based on complex intracellular signalling mechanisms, it impacts a wide variety of cells including platelets, leukocytes and endothelial cells. Consequently, although initially mainly associated with venous thromboembolism, NETs also affect and mediate atherothrombosis and its acute complications in the coronary, cerebral and peripheral arterial vasculature. In this context, besides deep vein thrombosis and pulmonary embolism, NETs in atherosclerosis and especially its acute complications such as myocardial infarction and ischemic stroke gained a lot of attention in the cardiovascular research field in the last decade. Thus, since the effect of NETosis on platelets and thrombosis in general is extensively discussed in other review articles, this review focusses on the translational and clinical relevance of NETosis research in cardiovascular thrombo-occlusive diseases. Consequently, after a brief summary of the neutrophil physiology and the cellular and molecular mechanisms underlying NETosis are presented, the role of NETosis in atherosclerotic and venous thrombo-occlusive diseases in chronic and acute settings are discussed. Finally, potential prevention and treatment strategies of NET-associated thrombo-occlusive diseases are considered.
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Affiliation(s)
- Monika Zdanyte
- DFG Heisenberg Group Thrombocardiology, Eberhard Karl University Tübingen, Tübingen, Germany
- Department of Cardiology and Angiology, University Hospital Tübingen, Tübingen, Germany
| | - Oliver Borst
- DFG Heisenberg Group Thrombocardiology, Eberhard Karl University Tübingen, Tübingen, Germany
- Department of Cardiology and Angiology, University Hospital Tübingen, Tübingen, Germany
| | - Patrick Münzer
- DFG Heisenberg Group Thrombocardiology, Eberhard Karl University Tübingen, Tübingen, Germany
- Department of Cardiology and Angiology, University Hospital Tübingen, Tübingen, Germany
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Wang M, Yu F, Chang W, Zhang Y, Zhang L, Li P. Inflammasomes: a rising star on the horizon of COVID-19 pathophysiology. Front Immunol 2023; 14:1185233. [PMID: 37251383 PMCID: PMC10213254 DOI: 10.3389/fimmu.2023.1185233] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Accepted: 05/02/2023] [Indexed: 05/31/2023] Open
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is a contagious respiratory virus that is the cause of the coronavirus disease 2019 (COVID-19) pandemic which has posed a serious threat to public health. COVID-19 is characterized by a wide spectrum of clinical manifestations, ranging from asymptomatic infection to mild cold-like symptoms, severe pneumonia or even death. Inflammasomes are supramolecular signaling platforms that assemble in response to danger or microbial signals. Upon activation, inflammasomes mediate innate immune defense by favoring the release of proinflammatory cytokines and triggering pyroptotic cell death. Nevertheless, abnormalities in inflammasome functioning can result in a variety of human diseases such as autoimmune disorders and cancer. A growing body of evidence has showed that SARS-CoV-2 infection can induce inflammasome assembly. Dysregulated inflammasome activation and consequent cytokine burst have been associated with COVID-19 severity, alluding to the implication of inflammasomes in COVID-19 pathophysiology. Accordingly, an improved understanding of inflammasome-mediated inflammatory cascades in COVID-19 is essential to uncover the immunological mechanisms of COVID-19 pathology and identify effective therapeutic approaches for this devastating disease. In this review, we summarize the most recent findings on the interplay between SARS-CoV-2 and inflammasomes and the contribution of activated inflammasomes to COVID-19 progression. We dissect the mechanisms involving the inflammasome machinery in COVID-19 immunopathogenesis. In addition, we provide an overview of inflammasome-targeted therapies or antagonists that have potential clinical utility in COVID-19 treatment.
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Affiliation(s)
- Man Wang
- *Correspondence: Man Wang, ; Peifeng Li,
| | | | | | | | | | - Peifeng Li
- *Correspondence: Man Wang, ; Peifeng Li,
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36
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Yalcinkaya M, Fotakis P, Liu W, Endo-Umeda K, Dou H, Abramowicz S, Xiao T, Libby P, Wang N, Tall AR, Westerterp M. Cholesterol accumulation in macrophages drives NETosis in atherosclerotic plaques via IL-1β secretion. Cardiovasc Res 2023; 119:969-981. [PMID: 36537208 PMCID: PMC10153645 DOI: 10.1093/cvr/cvac189] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 10/04/2022] [Accepted: 11/04/2022] [Indexed: 12/24/2022] Open
Abstract
AIMS Neutrophil extracellular trap formation (NETosis) increases atherosclerotic plaque vulnerability and athero-thrombosis. However, mechanisms promoting NETosis during atherogenesis are poorly understood. We have shown that cholesterol accumulation due to myeloid cell deficiency of the cholesterol transporters ATP Binding Cassette A1 and G1 (ABCA1/G1) promotes NLRP3 inflammasome activation in macrophages and neutrophils and induces prominent NETosis in atherosclerotic plaques. We investigated whether NETosis is a cell-intrinsic effect in neutrophils or is mediated indirectly by cellular crosstalk from macrophages to neutrophils involving IL-1β. METHODS AND RESULTS We generated mice with neutrophil or macrophage-specific Abca1/g1 deficiency (S100A8CreAbca1fl/flAbcg1fl/fl or CX3CR1CreAbca1fl/flAbcg1fl/fl mice, respectively), and transplanted their bone marrow into low-density lipoprotein receptor knockout mice. We then fed the mice a cholesterol-rich diet. Macrophage, but not neutrophil Abca1/g1 deficiency activated inflammasomes in macrophages and neutrophils, reflected by caspase-1 cleavage, and induced NETosis in plaques. NETosis was suppressed by administering an interleukin (IL)-1β neutralizing antibody. The extent of NETosis in plaques correlated strongly with the degree of neutrophil accumulation, irrespective of blood neutrophil counts, and neutrophil accumulation was decreased by IL-1β antagonism. In vitro, IL-1β or media transferred from Abca1/g1-deficient macrophages increased NETosis in both control and Abca1/Abcg1 deficient neutrophils. This cell-extrinsic effect of IL-1β on NETosis was blocked by an NLRP3 inhibitor. CONCLUSION These studies establish a new link between inflammasome-mediated IL-1β production in macrophages and NETosis in atherosclerotic plaques. Macrophage-derived IL-1β appears to increase NETosis both by increasing neutrophil recruitment to plaques and by promoting neutrophil NLRP3 inflammasome activation.
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Affiliation(s)
- Mustafa Yalcinkaya
- Division of Molecular Medicine, Department of Medicine, Columbia University Irving Medical Center, 630 West 168 Street P&S 8-401, New York, NY 10032, USA
| | - Panagiotis Fotakis
- Division of Molecular Medicine, Department of Medicine, Columbia University Irving Medical Center, 630 West 168 Street P&S 8-401, New York, NY 10032, USA
| | - Wenli Liu
- Division of Molecular Medicine, Department of Medicine, Columbia University Irving Medical Center, 630 West 168 Street P&S 8-401, New York, NY 10032, USA
| | - Kaori Endo-Umeda
- Division of Molecular Medicine, Department of Medicine, Columbia University Irving Medical Center, 630 West 168 Street P&S 8-401, New York, NY 10032, USA
- Division of Biochemistry, Department of Biomedical Sciences, Nihon University School of Medicine, 30-1 Oyaguchi-kamicho, Itabashi-ku, Tokyo 173-8610, Japan
| | - Huijuan Dou
- Division of Molecular Medicine, Department of Medicine, Columbia University Irving Medical Center, 630 West 168 Street P&S 8-401, New York, NY 10032, USA
| | - Sandra Abramowicz
- Division of Molecular Medicine, Department of Medicine, Columbia University Irving Medical Center, 630 West 168 Street P&S 8-401, New York, NY 10032, USA
| | - Tong Xiao
- Division of Molecular Medicine, Department of Medicine, Columbia University Irving Medical Center, 630 West 168 Street P&S 8-401, New York, NY 10032, USA
| | - Peter Libby
- Department of Medicine, Cardiovascular Division, Brigham and Women’s Hospital, Harvard Medical School, 75 Francis Street, Boston, MA 02115, USA
| | - Nan Wang
- Division of Molecular Medicine, Department of Medicine, Columbia University Irving Medical Center, 630 West 168 Street P&S 8-401, New York, NY 10032, USA
| | - Alan R Tall
- Division of Molecular Medicine, Department of Medicine, Columbia University Irving Medical Center, 630 West 168 Street P&S 8-401, New York, NY 10032, USA
| | - Marit Westerterp
- Division of Molecular Medicine, Department of Medicine, Columbia University Irving Medical Center, 630 West 168 Street P&S 8-401, New York, NY 10032, USA
- Department of Pediatrics, University Medical Center Groningen, University of Groningen, Antonius Deusinglaan 1, 9713AV Groningen, The Netherlands
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Baragetti A, Da Dalt L, Moregola A, Svecla M, Terenghi O, Mattavelli E, De Gaetano LN, Uboldi P, Catapano AL, Norata GD. Neutrophil aging exacerbates high fat diet induced metabolic alterations. Metabolism 2023; 144:155576. [PMID: 37116643 DOI: 10.1016/j.metabol.2023.155576] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 04/14/2023] [Accepted: 04/20/2023] [Indexed: 04/30/2023]
Abstract
BACKGROUND High fat diet (HFD) chronically hyper-activate the myeloid cell precursors, but whether it affects the neutrophil aging is unknown. PURPOSE We characterized how HFD impacts neutrophil aging, infiltration in metabolic tissues and if this aging, in turn, modulates the development of metabolic alterations. We immunophenotyped neutrophils and characterized the metabolic responses in physiology (wild-type mice, WT) and in mice with constitutively aged neutrophils (MRP8 driven conditional deletion of CXCR4; herein CXCR4fl/flCre+) or with constitutively fresh neutrophils (MRP8 driven conditional deletion of CXCR2; CXCR2fl/flCre+), following 20 weeks of HFD feeding (45 % kcal from fat). FINDINGS After 20 weeks HFD, the gluco-metabolic profile of CXCR4fl/flCre+ mice was comparable to that of WT mice, while CXCR2fl/flCre+ mice were protected from metabolic alterations. CXCR4fl/flCre+ infiltrated more, but CXCR2fl/flCre+ neutrophils infiltrated less, in liver and visceral adipose tissue (VAT). As consequence, while CXCR4fl/flCre+ resulted into hepatic "suicidal" neutrophils extracellular traps (NETs) and altered immune cell architecture in VAT, CXCR2fl/flCre+ promoted proresolutive hepatic NETs and reduced accumulation of pro-inflammatory macrophages in VAT. In humans, higher Cxcl12 (CXCR4 ligand) plasma levels correlated with visceral adiposity while higher levels of Cxcl1, the ligand of CXCR2, correlated with indexes of hepatic steatosis, adiposity and metabolic syndrome. CONCLUSIONS Neutrophil aging might contribute to the development of HFD induced metabolic disorders.
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Affiliation(s)
- Andrea Baragetti
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milan, Italy
| | - Lorenzo Da Dalt
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milan, Italy
| | - Annalisa Moregola
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milan, Italy
| | - Monika Svecla
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milan, Italy
| | - Ottavia Terenghi
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milan, Italy
| | - Elisa Mattavelli
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milan, Italy; SISA Centre for the Study of Atherosclerosis, Bassini Hospital, Cinisello Balsamo, Italy
| | - Lucia Nicolini De Gaetano
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milan, Italy; IRCCS Multimedica Hospital, Milan, Italy
| | - Patrizia Uboldi
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milan, Italy
| | - Alberico Luigi Catapano
- SISA Centre for the Study of Atherosclerosis, Bassini Hospital, Cinisello Balsamo, Italy; IRCCS Multimedica Hospital, Milan, Italy
| | - Giuseppe Danilo Norata
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milan, Italy; SISA Centre for the Study of Atherosclerosis, Bassini Hospital, Cinisello Balsamo, Italy.
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Chakraborty S, Tabrizi Z, Bhatt NN, Franciosa SA, Bracko O. A Brief Overview of Neutrophils in Neurological Diseases. Biomolecules 2023; 13:biom13050743. [PMID: 37238612 DOI: 10.3390/biom13050743] [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: 03/13/2023] [Revised: 04/21/2023] [Accepted: 04/23/2023] [Indexed: 05/28/2023] Open
Abstract
Neutrophils are the most abundant leukocyte in circulation and are the first line of defense after an infection or injury. Neutrophils have a broad spectrum of functions, including phagocytosis of microorganisms, the release of pro-inflammatory cytokines and chemokines, oxidative burst, and the formation of neutrophil extracellular traps. Traditionally, neutrophils were thought to be most important for acute inflammatory responses, with a short half-life and a more static response to infections and injury. However, this view has changed in recent years showing neutrophil heterogeneity and dynamics, indicating a much more regulated and flexible response. Here we will discuss the role of neutrophils in aging and neurological disorders; specifically, we focus on recent data indicating the impact of neutrophils in chronic inflammatory processes and their contribution to neurological diseases. Lastly, we aim to conclude that reactive neutrophils directly contribute to increased vascular inflammation and age-related diseases.
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Affiliation(s)
| | - Zeynab Tabrizi
- Department of Biology, University of Miami, Coral Gables, FL 33146, USA
| | | | | | - Oliver Bracko
- Department of Biology, University of Miami, Coral Gables, FL 33146, USA
- Department of Neurology, University of Miami-Miller School of Medicine, Miami, FL 33136, USA
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Yang S, Feng Y, Chen L, Wang Z, Chen J, Ni Q, Guo X, Zhang L, Xue G. Disulfiram accelerates diabetic foot ulcer healing by blocking NET formation via suppressing the NLRP3/Caspase-1/GSDMD pathway. Transl Res 2023; 254:115-127. [PMID: 36336332 DOI: 10.1016/j.trsl.2022.10.008] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/10/2022] [Revised: 10/26/2022] [Accepted: 10/30/2022] [Indexed: 11/05/2022]
Abstract
Diabetic foot ulcer (DFU) is among the most frequent complications of diabetes and is associated with significant morbidity and mortality. Excessive neutrophil extracellular traps (NETs) delay wound healing in diabetic patients. Therefore, interventions targeting NET release need to be developed to effectively prevent NET-based wound healing impairment. Gasdermin D (GSDMD), a pore-forming protein acts as a central executioner of inflammatory cell death and can activate inflammasomes in neutrophils to release NETs. A precise understanding of the mechanism underlying NET-mediated delay in diabetic wound healing may be valuable in identifying potential therapeutic targets to improve clinical outcomes. In this study, we reported that neutrophils were more susceptible to NETosis in diabetic wound environments of patients with DFU. By in vitro experiments and using in vivo mouse models of diabetic wound healing (wide-type, Nlrp3-/-, Casp-1-/-, and Gsdmd-/- mice), we demonstrated that NLRP3/caspase-1/GSDMD pathway on activation controls NET release by neutrophils in diabetic wound tissue. Furthermore, inhibition of GSDMD with disulfiram or genic deletion of Gsdmd abrogated NET formation, thereby accelerating diabetic wound healing. Disulfiram could inhibit NETs-mediated diabetic foot ulcer healing impairment by suppressing the NLRP3/Caspase-1/GSDMD pathway. In summary, our findings uncover a novel therapeutic role of disulfiram in inhibiting NET formation, which is of considerable value in accelerating wound healing in patients with DFU.
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Affiliation(s)
- Shuofei Yang
- Department of Vascular Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
| | - Yu Feng
- Department of Endocrinology, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Liang Chen
- Department of Vascular Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Zheyu Wang
- Department of Vascular Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Jiaquan Chen
- Department of Vascular Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Qihong Ni
- Department of Vascular Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Xiangjiang Guo
- Department of Vascular Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Lan Zhang
- Department of Vascular Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
| | - Guanhua Xue
- Department of Vascular Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
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40
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Iwaniuk A, Jablonska E. Neutrophils in Health and Disease: From Receptor Sensing to Inflammasome Activation. Int J Mol Sci 2023; 24:ijms24076340. [PMID: 37047314 PMCID: PMC10094305 DOI: 10.3390/ijms24076340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 03/22/2023] [Accepted: 03/25/2023] [Indexed: 03/30/2023] Open
Abstract
Neutrophils—polymorphonuclear cells (PMNs) are the cells of the initial immune response and make up the majority of leukocytes in the peripheral blood. After activation, these cells modify their functional status to meet the needs at the site of action or according to the agent causing injury. They receive signals from their surroundings and “plan” the course of the response in both temporal and spatial contexts. PMNs dispose of intracellular signaling pathways that allow them to perform a wide range of functions associated with the development of inflammatory processes. In addition to these cells, some protein complexes, known as inflammasomes, also have a special role in the development and maintenance of inflammation. These complexes participate in the proteolytic activation of key pro-inflammatory cytokines, such as IL-1β and IL-18. In recent years, there has been significant progress in the understanding of the structure and molecular mechanisms behind the activation of inflammasomes and their participation in the pathogenesis of numerous diseases. The available reports focus primarily on macrophages and dendritic cells. According to the literature, the activation of inflammasomes in neutrophils and the associated death type—pyroptosis—is regulated in a different manner than in other cells. The present work is a review of the latest reports concerning the course of inflammasome activation and inflammatory cytokine secretion in response to pathogens in neutrophils, as well as the role of these mechanisms in the pathogenesis of selected diseases.
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41
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Scharf RE, Anaya JM. Post-COVID Syndrome in Adults-An Overview. Viruses 2023; 15:675. [PMID: 36992384 PMCID: PMC10056158 DOI: 10.3390/v15030675] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 02/28/2023] [Accepted: 03/01/2023] [Indexed: 03/08/2023] Open
Abstract
This article provides an overview of various aspects related to post-COVID syndrome. Apart from its prevalence, symptoms and sequelae, risk determinants, and psychosocial implications, the pathogenesis of post-COVID condition is discussed in more detail. A focus on thrombo-inflammation in SARS-CoV-2 infection, the role of neutrophil extracellular traps, and the prevalence of venous thromboembolism is made. Moreover, COVID-19 and post-COVID syndrome in immunocompromising conditions, and the impact of vaccination on the prevention and treatment of post-COVID symptoms are reviewed. Autoimmunity is a hallmark of post-COVID syndrome, and, therefore, is another focus of this article. Thus, misdirected cellular and humoral immune responses can enhance the risk of latent autoimmunity in post-COVID syndrome. Facing the high prevalence of COVID-19 cases worldwide, it can be assumed that autoimmune disorders will increase globally over the next few years. Recent advances in identifying genetically determined variants may open the avenue for a better understanding of the susceptibility to and severity of SARS-CoV-2 infection and post-COVID syndrome.
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Affiliation(s)
- Rüdiger E. Scharf
- Current Address: Department of Medicine, Division of Cardiology, Angiology, Hemostasis and Internal Intensive Care Medicine, University Medical Center Mannheim, University of Heidelberg, D-68167 Mannheim, Germany
- Harvard Medical School, Program in Cellular and Molecular Medicine, Boston Children’s Hospital, Karp Family Research Laboratories, Boston, MA 02115, USA
- Institute of Transplantation Diagnostics and Cell Therapy, Division of Hemostasis, Hemotherapy and Transfusion Medicine, Heinrich Heine University Medical Center, D-40225 Düsseldorf, Germany
| | - Juan-Manuel Anaya
- Current Affiliation & Address: National Academy of Medicine of Colombia, Bogotá 110221, Colombia
- Health Research and Innovation Center at Coosalud, Cartagena 130001, Colombia
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Abstract
PURPOSE OF REVIEW This short review is intended to highlight the potential role of inflammation as a key pathological driver, rather than a mere consequence, of nephrolithiasis. Although there is clearly a strong likelihood that the relationship is bidirectional, and that kidney stone-triggered inflammation can establish a vicious cycle of tissue injury and stone formation. RECENT FINDINGS These consist of data from both recent preclinical and clinical studies demonstrating the importance of inflammation in models of stone disease and in kidney tissue from patients with nephrolithiasis, and as a potential driver of disease recurrence and a suitable treatment target. In particular, the role of immune cells and their relationship to the NLRP3 inflammasome is becoming clearer, as well as the potential contribution to tissue injury and stone formation of the pro-inflammatory cytokines interleukin-1β and interleukin-18. SUMMARY This concept is not new and raises the possibility that targeting inflammation directly may prove to be a novel and suitable means of treatment for at least some types of kidney stone, and in certain clinical settings, both acutely and as prevention, especially in those patients experiencing recurrent stone episodes and/or who have a well defined metabolic cause such as uric acid or calcium oxalate stones.
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Affiliation(s)
- Giovanna Capolongo
- Department of Translational Medical Sciences, University of Campania "L. Vanvitelli", Naples
| | - Pietro Manuel Ferraro
- Dipartimento Universitario di Medicina e Chirurgia Traslazionale, Università Cattolica del Sacro Cuore, Roma, Italia
| | - Robert Unwin
- Department of Renal Medicine, Royal Free Hospital, University College London (UCL), London, UK
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43
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Salzmann M, Platzer H, Mussbacher M, Derler M, Lenz M, Haider P, Brekalo M, Kral-Pointner JB, Kastl S, Speidl WS, Preissner KT, Schubert U, Bischoff M, Uhrin P, Wojta J, Hohensinner PJ. Staphylococcus aureus extracellular adherence protein (Eap) reduces immune cell phenotype in developing but not in established atherosclerotic lesions. Biochim Biophys Acta Mol Basis Dis 2023; 1869:166616. [PMID: 36513287 DOI: 10.1016/j.bbadis.2022.166616] [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: 08/23/2022] [Revised: 11/15/2022] [Accepted: 11/28/2022] [Indexed: 12/14/2022]
Abstract
Atherosclerosis is a chronic, inflammatory disease of the vessel wall where triggered immune cells bind to inflamed endothelium, extravasate and sustain local inflammation. Leukocyte adhesion and extravasation are mediated by adhesion molecules expressed by activated endothelial cells, like intercellular adhesion molecule 1 (ICAM-1). Extracellular adherence protein (Eap) from Staphylococcus aureus binds to a plethora of extracellular matrix proteins, including ICAM-1 and its ligands macrophage-1 antigen (Mac-1, αMβ2) and lymphocyte function-associated antigen 1 (LFA-1, αLβ2), thereby disrupting the interaction between leukocytes and endothelial cells. We aimed to use Eap to inhibit the interaction of leukocytes with activated endothelial cells in settings of developing and established atherosclerosis in apolipoprotein E (ApoE) deficient mice on high-fat diet. In developing atherosclerosis, Eap treatment reduced circulating platelet-neutrophil aggregates as well as infiltration of T cells and neutrophils into the growing plaque, accompanied by reduced formation of neutrophil extracellular traps (NETs). However, plaque size did not change. Intervention treatment with Eap of already established plaques did not result in cellular or morphological plaque changes, whereas T cell infiltration was increased and thereby again modulated by Eap. We conclude that although Eap leads to cellular changes in developing plaques, clinical implications might be limited as patients are usually treated at a more advanced stage of disease progression. Hence, usage of Eap might be an interesting mechanistic tool for cellular infiltration during plaque development in basic research but not a clinical target.
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Affiliation(s)
- Manuel Salzmann
- Department of Internal Medicine II/Division of Cardiology, Medical University of Vienna, Waehringer Guertel 18-20, 1090 Vienna, Austria; Ludwig Boltzmann Institute for Cardiovascular Research, Waehringer Guertel 18-20, 1090 Vienna, Austria.
| | - Harald Platzer
- Department of Internal Medicine II/Division of Cardiology, Medical University of Vienna, Waehringer Guertel 18-20, 1090 Vienna, Austria.
| | - Marion Mussbacher
- Department of Pharmacology and Toxicology, University of Graz, Humboldtstraße 46, 8010 Graz, Austria.
| | - Martina Derler
- Department of Pharmacology and Toxicology, University of Graz, Humboldtstraße 46, 8010 Graz, Austria.
| | - Max Lenz
- Department of Internal Medicine II/Division of Cardiology, Medical University of Vienna, Waehringer Guertel 18-20, 1090 Vienna, Austria.
| | - Patrick Haider
- Department of Internal Medicine II/Division of Cardiology, Medical University of Vienna, Waehringer Guertel 18-20, 1090 Vienna, Austria.
| | - Mira Brekalo
- Department of Internal Medicine II/Division of Cardiology, Medical University of Vienna, Waehringer Guertel 18-20, 1090 Vienna, Austria.
| | - Julia B Kral-Pointner
- Department of Internal Medicine II/Division of Cardiology, Medical University of Vienna, Waehringer Guertel 18-20, 1090 Vienna, Austria; Ludwig Boltzmann Institute for Cardiovascular Research, Waehringer Guertel 18-20, 1090 Vienna, Austria.
| | - Stefan Kastl
- Department of Internal Medicine II/Division of Cardiology, Medical University of Vienna, Waehringer Guertel 18-20, 1090 Vienna, Austria.
| | - Walter S Speidl
- Department of Internal Medicine II/Division of Cardiology, Medical University of Vienna, Waehringer Guertel 18-20, 1090 Vienna, Austria; Ludwig Boltzmann Institute for Cardiovascular Research, Waehringer Guertel 18-20, 1090 Vienna, Austria.
| | - Klaus T Preissner
- Department of Cardiology, Kerckhoff Heart Research Institute, Justus-Liebig-University, Aulweg 129, 35392 Giessen, Germany; Department of Biochemistry, Medical Faculty, Justus-Liebig-University, Friedrichstrasse 24, 35392 Giessen, Germany.
| | - Uwe Schubert
- Department of Biochemistry, Medical Faculty, Justus-Liebig-University, Friedrichstrasse 24, 35392 Giessen, Germany.
| | - Markus Bischoff
- Institute of Medical Microbiology and Hygiene, Saarland University, Kirrberger Straße 100, 66424 Homburg, Germany.
| | - Pavel Uhrin
- Center for Physiology and Pharmacology, Schwarzspanierstraße 17A, 1090 Vienna, Austria.
| | - Johann Wojta
- Department of Internal Medicine II/Division of Cardiology, Medical University of Vienna, Waehringer Guertel 18-20, 1090 Vienna, Austria; Ludwig Boltzmann Institute for Cardiovascular Research, Waehringer Guertel 18-20, 1090 Vienna, Austria.
| | - Philipp J Hohensinner
- Ludwig Boltzmann Institute for Cardiovascular Research, Waehringer Guertel 18-20, 1090 Vienna, Austria; Center for Biomedical Research, Medical University of Vienna, Waehringer Guertel 18-20, 1090 Vienna, Austria.
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44
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Leal VNC, Andrade MMS, Teixeira FME, Cambui RAG, Roa MEGV, Marra LG, Yamada SM, Alberca RW, Gozzi-Silva SC, Yendo TM, Netto LC, Duarte AJS, Sato MN, Pontillo A. Severe COVID-19 patients show a dysregulation of the NLRP3 inflammasome in circulating neutrophils. Scand J Immunol 2023; 97:e13247. [PMID: 36541819 DOI: 10.1111/sji.13247] [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: 09/14/2022] [Revised: 11/15/2022] [Accepted: 12/15/2022] [Indexed: 12/24/2022]
Abstract
SARS-CoV-2 triggers inflammasome-dependent release of pro-inflammatory cytokine IL-1β and pyroptosis, therefore, contributes to the huge inflammatory response observed in severe COVID-19 patients. Less is known about the engagement of inflammasome in neutrophils, main players in tissue injury and severe infection. We studied the activation of the inflammasome in neutrophils from severe COVID-19 patients and assessed its consequence in term of cells contribution to disease pathogenesis. We demonstrated that NLRP3 inflammasome is dramatically activated in neutrophils from severe COVID-19 patients and that the specific inhibition of NLRP3 reverts neutrophils' activation. Next, the stimulation of severe patients' neutrophils with common NLRP3 stimuli was not able to further activate the inflammasome, possibly due to exhaustion or increased percentage of circulating immature neutrophils. Collectively, our results demonstrate that the NLRP3 inflammasome is hyperactivated in severe COVID-19 neutrophils and its exhaustion may be responsible for the increased susceptibility to subsequent (and possibly lethal) infections. Our findings thus include a novel piece in the complex puzzle of COVID-19 pathogenesis.
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Affiliation(s)
- Vinicius N C Leal
- Laboratório de Imunogenética, Departamento de Imunologia, Instituto de Ciências Biomédicas/ICB, Universidade de São Paulo/USP, São Paulo, Brazil
| | - Milena M S Andrade
- Laboratório de Investigação Médica em Dermatologia e Imunodeficiências (LIM-56), Departamento de Dermatologia, Hospital das Clínicas e Faculdade de Medicina/HCFMUSP, São Paulo, Brazil
| | - Franciane M E Teixeira
- Laboratório de Investigação Médica em Dermatologia e Imunodeficiências (LIM-56), Departamento de Dermatologia, Hospital das Clínicas e Faculdade de Medicina/HCFMUSP, São Paulo, Brazil
| | - Raylane A G Cambui
- Laboratório de Imunogenética, Departamento de Imunologia, Instituto de Ciências Biomédicas/ICB, Universidade de São Paulo/USP, São Paulo, Brazil
| | - Mariela E G V Roa
- Laboratório de Imunogenética, Departamento de Imunologia, Instituto de Ciências Biomédicas/ICB, Universidade de São Paulo/USP, São Paulo, Brazil
| | - Letícia G Marra
- Laboratório de Imunogenética, Departamento de Imunologia, Instituto de Ciências Biomédicas/ICB, Universidade de São Paulo/USP, São Paulo, Brazil
| | - Suemy M Yamada
- Laboratório de Imunogenética, Departamento de Imunologia, Instituto de Ciências Biomédicas/ICB, Universidade de São Paulo/USP, São Paulo, Brazil
| | - Ricardo W Alberca
- Laboratório de Investigação Médica em Dermatologia e Imunodeficiências (LIM-56), Departamento de Dermatologia, Hospital das Clínicas e Faculdade de Medicina/HCFMUSP, São Paulo, Brazil
| | - Sarah C Gozzi-Silva
- Laboratório de Investigação Médica em Dermatologia e Imunodeficiências (LIM-56), Departamento de Dermatologia, Hospital das Clínicas e Faculdade de Medicina/HCFMUSP, São Paulo, Brazil
| | - Tatiana M Yendo
- Departamento de Dermatologia, Instituto de Medicina Tropical, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil
| | - Lucas C Netto
- Unidade Terapia Intensiva, Hospital das Clínicas/FMUSP, São Paulo, Brazil
| | - Alberto J S Duarte
- Laboratório de Investigação Médica em Dermatologia e Imunodeficiências (LIM-56), Departamento de Dermatologia, Hospital das Clínicas e Faculdade de Medicina/HCFMUSP, São Paulo, Brazil
| | - Maria N Sato
- Laboratório de Investigação Médica em Dermatologia e Imunodeficiências (LIM-56), Departamento de Dermatologia, Hospital das Clínicas e Faculdade de Medicina/HCFMUSP, São Paulo, Brazil
| | - Alessandra Pontillo
- Laboratório de Imunogenética, Departamento de Imunologia, Instituto de Ciências Biomédicas/ICB, Universidade de São Paulo/USP, São Paulo, Brazil
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Poli V, Zanoni I. Neutrophil intrinsic and extrinsic regulation of NETosis in health and disease. Trends Microbiol 2023; 31:280-293. [PMID: 36344311 PMCID: PMC9974585 DOI: 10.1016/j.tim.2022.10.002] [Citation(s) in RCA: 32] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 10/09/2022] [Accepted: 10/10/2022] [Indexed: 11/08/2022]
Abstract
Neutrophil extracellular traps (NETs) evolved to protect the host against microbial infections and are formed by a web-like structure of DNA that is decorated with antimicrobial effectors. Due to their potent inflammatory functions, NETs also cause tissue damage and can favor and/or aggravate inflammatory diseases. This multipronged activity of NETs requires that the induction, release, and degradation of NETs are tightly regulated. Here we describe the key pathways that are intrinsic to neutrophils and regulate NETosis, and we review the most recent findings on how neutrophil extrinsic factors participate in the formation of NETs. In particular, we emphasize how bystander cells contribute to modifying the capacity of neutrophils to undergo NETosis. Finally, we discuss how these neutrophil extrinsic processes can be harnessed to protect the host against the excessive inflammation elicited by uncontrolled NET release.
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Affiliation(s)
- Valentina Poli
- Harvard Medical School, Boston Children's Hospital, Division of Immunology, Division of Gastroenterology, Boston, MA, USA
| | - Ivan Zanoni
- Harvard Medical School, Boston Children's Hospital, Division of Immunology, Division of Gastroenterology, Boston, MA, USA.
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46
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Dubyak GR, Miller BA, Pearlman E. Pyroptosis in neutrophils: Multimodal integration of inflammasome and regulated cell death signaling pathways. Immunol Rev 2023; 314:229-249. [PMID: 36656082 PMCID: PMC10407921 DOI: 10.1111/imr.13186] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Pyroptosis is a proinflammatory mode of lytic cell death mediated by accumulation of plasma membrane (PM) macropores composed of gasdermin-family (GSDM) proteins. It facilitates two major functions in innate immunity: (i) elimination of intracellular replicative niches for pathogenic bacteria; and (ii) non-classical secretion of IL-1 family cytokines that amplify host-beneficial inflammatory responses to microbial infection or tissue damage. Physiological roles for gasdermin D (GSDMD) in pyroptosis and IL-1β release during inflammasome signaling have been extensively characterized in macrophages. This involves cleavage of GSDMD by caspase-1 to generate GSDMD macropores that mediate IL-1β efflux and progression to pyroptotic lysis. Neutrophils, which rapidly accumulate in large numbers at sites of tissue infection or damage, become the predominant local source of IL-1β in coordination with their potent microbiocidal capacity. Similar to macrophages, neutrophils express GSDMD and utilize the same spectrum of diverse inflammasome platforms for caspase-1-mediated cleavage of GSDMD. Distinct from macrophages, neutrophils possess a remarkable capacity to resist progression to GSDMD-dependent pyroptotic lysis to preserve their viability for efficient microbial killing while maintaining GSDMD-dependent mechanisms for export of bioactive IL-1β. Rather, neutrophils employ cell-specific mechanisms to conditionally engage GSDMD-mediated pyroptosis in response to bacterial pathogens that use neutrophils as replicative niches. GSDMD and pyroptosis have also been mechanistically linked to induction of NETosis, a signature neutrophil pathway that expels decondensed nuclear DNA into extracellular compartments for immobilization and killing of microbial pathogens. This review summarizes a rapidly growing number of recent studies that have produced new insights, unexpected mechanistic nuances, and some controversies regarding the regulation of, and roles for, neutrophil inflammasomes, pyroptosis, and GSDMs in diverse innate immune responses.
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Affiliation(s)
- George R. Dubyak
- Department of Physiology and Biophysics, School of Medicine, Case Western Reserve University, Cleveland, Ohio, USA
| | - Brandon A. Miller
- Department of Physiology and Biophysics, School of Medicine, Case Western Reserve University, Cleveland, Ohio, USA
| | - Eric Pearlman
- Department of Ophthalmology, University of California, Irvine, California, USA
- Department of Physiology and Biophysics, University of California, Irvine, California, USA
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Putative Role of Neutrophil Extracellular Trap Formation in Chronic Myeloproliferative Neoplasms. Int J Mol Sci 2023; 24:ijms24054497. [PMID: 36901933 PMCID: PMC10003516 DOI: 10.3390/ijms24054497] [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: 02/04/2023] [Revised: 02/17/2023] [Accepted: 02/20/2023] [Indexed: 03/03/2023] Open
Abstract
Myeloproliferative neoplasms (MPNs) are hematologic malignancies characterized by gene mutations that promote myeloproliferation and resistance to apoptosis via constitutively active signaling pathways, with Janus kinase 2-signal transducers and the activators of transcription (JAK-STAT) axis as a core part. Chronic inflammation has been described as a pivot for the development and advancement of MPNs from early stage cancer to pronounced bone marrow fibrosis, but there are still unresolved questions regarding this issue. The MPN neutrophils are characterized by upregulation of JAK target genes, they are in a state of activation and with deregulated apoptotic machinery. Deregulated neutrophil apoptotic cell death supports inflammation and steers them towards secondary necrosis or neutrophil extracellular trap (NET) formation, a trigger of inflammation both ways. NETs in proinflammatory bone marrow microenvironment induce hematopoietic precursor proliferation, which has an impact on hematopoietic disorders. In MPNs, neutrophils are primed for NET formation, and even though it seems obvious for NETs to intervene in the disease progression by supporting inflammation, no reliable data are available. We discuss in this review the potential pathophysiological relevance of NET formation in MPNs, with the intention of contributing to a better understanding of how neutrophils and neutrophil clonality can orchestrate the evolution of a pathological microenvironment in MPNs.
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Gajendran C, Fukui S, Sadhu NM, Zainuddin M, Rajagopal S, Gosu R, Gutch S, Fukui S, Sheehy CE, Chu L, Vishwakarma S, Jeyaraj DA, Hallur G, Wagner DD, Sivanandhan D. Alleviation of arthritis through prevention of neutrophil extracellular traps by an orally available inhibitor of protein arginine deiminase 4. Sci Rep 2023; 13:3189. [PMID: 36823444 PMCID: PMC9950073 DOI: 10.1038/s41598-023-30246-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Accepted: 02/20/2023] [Indexed: 02/25/2023] Open
Abstract
Protein arginine deiminases (PAD) 4 is an enzyme that catalyzes citrullination of protein and its role in autoimmune diseases has been established through clinical genetics and gene knock out studies in mice. Further, studies with PAD4 - deficient mice have shown that PAD4 deficiency does not lead to increased infection or immune suppression, which makes PAD4 an attractive therapeutic target for auto-immune and inflammatory diseases. PAD4 has critical enzymatic role of promoting chromatin decondensation and neutrophil extracellular traps (NETs) formation that is associated with a number of immune-mediated pathological conditions. Here, we present a non-covalent PAD4 inhibitor JBI-589 with high PAD4 isoform selectivity and delineated its binding mode at 2.88 Å resolution by X-ray crystallography. We confirmed its effectiveness in inhibiting NET formation in vitro. Additionally, by using two mouse arthritis models for human rheumatoid arthritis (RA), the well-known disease associated with PAD4 clinically, we established its efficacy in vivo. These results suggest that JBI-589 would be beneficial for both PAD4 and NET-associated pathological conditions.
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Affiliation(s)
| | - Shoichi Fukui
- Program in Cellular and Molecular Medicine, Boston Children's Hospital, Boston, MA, 02115, USA
- Department of Pediatrics, Harvard Medical School, Boston, MA, 02115, USA
| | | | | | | | | | - Sarah Gutch
- Program in Cellular and Molecular Medicine, Boston Children's Hospital, Boston, MA, 02115, USA
| | - Saeko Fukui
- Program in Cellular and Molecular Medicine, Boston Children's Hospital, Boston, MA, 02115, USA
| | - Casey E Sheehy
- Program in Cellular and Molecular Medicine, Boston Children's Hospital, Boston, MA, 02115, USA
| | - Long Chu
- Program in Cellular and Molecular Medicine, Boston Children's Hospital, Boston, MA, 02115, USA
| | | | | | | | - Denisa D Wagner
- Program in Cellular and Molecular Medicine, Boston Children's Hospital, Boston, MA, 02115, USA
- Department of Pediatrics, Harvard Medical School, Boston, MA, 02115, USA
- Division of Hematology/Oncology, Boston Children's Hospital, Boston, MA, 02125, USA
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Neutrophil Extracellular Traps Release following Hypoxic-Ischemic Brain Injury in Newborn Rats Treated with Therapeutic Hypothermia. Int J Mol Sci 2023; 24:ijms24043598. [PMID: 36835009 PMCID: PMC9966013 DOI: 10.3390/ijms24043598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 02/01/2023] [Accepted: 02/08/2023] [Indexed: 02/17/2023] Open
Abstract
The peripheral immune system plays a critical role in neuroinflammation of the central nervous system after an insult. Hypoxic-ischemic encephalopathy (HIE) induces a strong neuroinflammatory response in neonates, which is often associated with exacerbated outcomes. In adult models of ischemic stroke, neutrophils infiltrate injured brain tissue immediately after an ischemic insult and aggravate inflammation via various mechanisms, including neutrophil extracellular trap (NETs) formation. In this study, we used a neonatal model of experimental hypoxic-ischemic (HI) brain injury and demonstrated that circulating neutrophils were rapidly activated in neonatal blood. We observed an increased infiltration of neutrophils in the brain after exposure to HI. After treatment with either normothermia (NT) or therapeutic hypothermia (TH), we observed a significantly enhanced expression level of the NETosis marker Citrullinated H3 (Cit-H3), which was significantly more pronounced in animals treated with TH than in those treated with NT. NETs and NLR family pyrin domain containing 3 (NLRP-3) inflammasome assembly are closely linked in adult models of ischemic brain injury. In this study, we observed an increase in the activation of the NLRP-3 inflammasome at the time points analyzed, particularly immediately after TH, when we observed a significant increase in NETs structures in the brain. Together, these results suggest the important pathological functions of early arriving neutrophils and NETosis following neonatal HI, particularly after TH treatment, which is a promising starting point for the development of potential new therapeutic targets for neonatal HIE.
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Salgar S, Bolívar BE, Flanagan JM, Anum SJ, Bouchier-Hayes L. The NLRP3 inflammasome fires up heme-induced inflammation in hemolytic conditions. Transl Res 2023; 252:34-44. [PMID: 36041706 DOI: 10.1016/j.trsl.2022.08.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 07/29/2022] [Accepted: 08/21/2022] [Indexed: 01/14/2023]
Abstract
Overactive inflammatory responses are central to the pathophysiology of many hemolytic conditions including sickle cell disease. Excessive hemolysis leads to elevated serum levels of heme due to saturation of heme scavenging mechanisms. Extracellular heme has been shown to activate the NLRP3 inflammasome, leading to activation of caspase-1 and release of pro-inflammatory cytokines IL-1β and IL-18. Heme also activates the non-canonical inflammasome pathway, which may contribute to NLRP3 inflammasome formation and leads to pyroptosis, a type of inflammatory cell death. Some clinical studies indicate there is a benefit to blocking the NLRP3 inflammasome pathway in patients with sickle cell disease and other hemolytic conditions. However, a thorough understanding of the mechanisms of heme-induced inflammasome activation is needed to fully leverage this pathway for clinical benefit. This review will explore the mechanisms of heme-induced NLRP3 inflammasome activation and the role of this pathway in hemolytic conditions including sickle cell disease.
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Affiliation(s)
- Suruchi Salgar
- Department of Pediatrics, Division of Hematology-Oncology, Baylor College of Medicine, Houston, Texas; Texas Children's Hospital William T. Shearer Center for Human Immunobiology, Houston, Texas
| | - Beatriz E Bolívar
- Department of Pediatrics, Division of Hematology-Oncology, Baylor College of Medicine, Houston, Texas; Texas Children's Hospital William T. Shearer Center for Human Immunobiology, Houston, Texas; Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas
| | - Jonathan M Flanagan
- Department of Pediatrics, Division of Hematology-Oncology, Baylor College of Medicine, Houston, Texas; Texas Children's Hospital William T. Shearer Center for Human Immunobiology, Houston, Texas
| | - Shaniqua J Anum
- Department of Pediatrics, Division of Hematology-Oncology, Baylor College of Medicine, Houston, Texas; Texas Children's Hospital William T. Shearer Center for Human Immunobiology, Houston, Texas
| | - Lisa Bouchier-Hayes
- Department of Pediatrics, Division of Hematology-Oncology, Baylor College of Medicine, Houston, Texas; Texas Children's Hospital William T. Shearer Center for Human Immunobiology, Houston, Texas; Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas.
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