1
|
Yu J, Fu Y, Zhang N, Gao J, Zhang Z, Jiang X, Chen C, Wen Z. Extracellular histones promote TWIK2-dependent potassium efflux and associated NLRP3 activation in alveolar macrophages during sepsis-induced lung injury. Inflamm Res 2024:10.1007/s00011-024-01888-3. [PMID: 38733398 DOI: 10.1007/s00011-024-01888-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 03/15/2024] [Accepted: 04/16/2024] [Indexed: 05/13/2024] Open
Abstract
BACKGROUND AND AIM Sepsis-induced acute lung injury (ALI) is a complex and life-threatening condition lacking specific and efficient clinical treatments. Extracellular histones, identified as a novel type of damage-associated molecular patterns, have been implicated in the inflammatory process of ALI. However, further elucidation is needed regarding the precise mechanism through which extracellular histones induce inflammation. The aim of this study was to investigate whether extracellular histones can activate NLRP3 inflammasome-mediated inflammation in alveolar macrophages (AMs) by affecting TWIK2-dependent potassium efflux. METHODS AND RESULTS We conducted experiments using cecal ligation and puncture (CLP) C57BL/6 mice and extracellular histone-stimulated LPS-primed MH-S cells. The results demonstrated a significant increase in the levels of extracellular histones in the plasma and bronchoalveolar lavage fluid (BALF) of CLP mice. Furthermore, neutralizing extracellular histone mitigated lung injury and inflammation in CLP-induced ALI mice. In vitro studies confirmed that extracellular histones upregulated the expression of NLRP3 inflammasome activation-related proteins in MH-S cells, and this effect was dependent on increased potassium efflux mediated by the TWIK2 channel on the plasma membrane. Moreover, extracellular histones directly triggered a substantial influx of calcium, leading to increased Rab11 activity and facilitating the trafficking and location of TWIK2 to the plasma membrane. CONCLUSION These findings underscore the critical role of extracellular histone-induced upregulation of TWIK2 expression on the plasma membrane of alveolar macrophages (AMs). This upregulation leads to potassium efflux and subsequent activation of the NLRP3 inflammasome, ultimately exacerbating lung inflammation and injury during sepsis.
Collapse
Affiliation(s)
- Jing Yu
- Department of Anesthesiology, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Yu Fu
- Department of Anesthesiology, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Nan Zhang
- Department of Anesthesiology, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Jiameng Gao
- Department of Anesthesiology, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Zhiyuan Zhang
- Department of Anesthesiology, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Xuemei Jiang
- Department of Anesthesiology, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Chang Chen
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, China.
| | - Zongmei Wen
- Department of Anesthesiology, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, China.
| |
Collapse
|
2
|
Li Q, Nie H. Advances in lung ischemia/reperfusion injury: unraveling the role of innate immunity. Inflamm Res 2024; 73:393-405. [PMID: 38265687 DOI: 10.1007/s00011-023-01844-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 12/03/2023] [Accepted: 12/18/2023] [Indexed: 01/25/2024] Open
Abstract
BACKGROUND Lung ischemia/reperfusion injury (LIRI) is a common occurrence in clinical practice and represents a significant complication following pulmonary transplantation and various diseases. At the core of pulmonary ischemia/reperfusion injury lies sterile inflammation, where the innate immune response plays a pivotal role. This review aims to investigate recent advancements in comprehending the role of innate immunity in LIRI. METHODS A computer-based online search was performed using the PubMed database and Web of Science database for published articles concerning lung ischemia/reperfusion injury, cell death, damage-associated molecular pattern molecules (DAMPs), innate immune cells, innate immunity, inflammation. RESULTS During the process of lung ischemia/reperfusion, cellular injury even death can occur. When cells are injured or undergo cell death, endogenous ligands known as DAMPs are released. These molecules can be recognized and bound by pattern recognition receptors (PRRs), leading to the recruitment and activation of innate immune cells. Subsequently, a cascade of inflammatory responses is triggered, ultimately exacerbating pulmonary injury. These steps are complex and interrelated rather than being in a linear relationship. In recent years, significant progress has been made in understanding the immunological mechanisms of LIRI, involving novel types of cell death, the ability of receptors other than PRRs to recognize DAMPs, and a more detailed mechanism of action of innate immune cells in ischemia/reperfusion injury (IRI), laying the groundwork for the development of novel diagnostic and therapeutic approaches. CONCLUSIONS Various immune components of the innate immune system play critical roles in lung injury after ischemia/reperfusion. Preventing cell death and the release of DAMPs, interrupting DAMPs receptor interactions, disrupting intracellular inflammatory signaling pathways, and minimizing immune cell recruitment are essential for lung protection in LIRI.
Collapse
Affiliation(s)
- Qingqing Li
- Department of Respiratory and Critical Care Medicine, Renmin Hospital of Wuhan University, 238 Jiefang Road, Wuchang District, Wuhan, 430060, China
| | - Hanxiang Nie
- Department of Respiratory and Critical Care Medicine, Renmin Hospital of Wuhan University, 238 Jiefang Road, Wuchang District, Wuhan, 430060, China.
| |
Collapse
|
3
|
Tsoneva DK, Ivanov MN, Vinciguerra M. Liquid Liver Biopsy for Disease Diagnosis and Prognosis. J Clin Transl Hepatol 2023; 11:1520-1541. [PMID: 38161500 PMCID: PMC10752811 DOI: 10.14218/jcth.2023.00040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Revised: 05/24/2023] [Accepted: 06/07/2023] [Indexed: 01/03/2024] Open
Abstract
Liver diseases are a major burden worldwide, the scope of which is expected to further grow in the upcoming years. Clinically relevant liver dysfunction-related blood markers such as alanine aminotransferase and aspartate aminotransferase have limited accuracy. Nowadays, liver biopsy remains the gold standard for several liver-related pathologies, posing a risk of complication due to its invasive nature. Liquid biopsy is a minimally invasive approach, which has shown substantial potential in the diagnosis, prognosis, and monitoring of liver diseases by detecting disease-associated particles such as proteins and RNA molecules in biological fluids. Histones are the core components of the nucleosomes, regulating essential cellular processes, including gene expression and DNA repair. Following cell death or activation of immune cells, histones are released in the extracellular space and can be detected in circulation. Histones are stable in circulation, have a long half-life, and retain their post-translational modifications. Here, we provide an overview of the current research on histone-mediated liquid biopsy methods for liver diseases, with a focus on the most common detection methods.
Collapse
Affiliation(s)
- Desislava K. Tsoneva
- Department of Medical Genetics, Medical University of Varna, Varna, Bulgaria
- Department of Stem Cell Biology and Transplantology, Research Institute, Medical University of Varna, Varna, Bulgaria
| | - Martin N. Ivanov
- Department of Stem Cell Biology and Transplantology, Research Institute, Medical University of Varna, Varna, Bulgaria
- Department of Anatomy and Cell Biology, Research Institute, Medical University of Varna, Varna, Bulgaria
| | - Manlio Vinciguerra
- Department of Stem Cell Biology and Transplantology, Research Institute, Medical University of Varna, Varna, Bulgaria
- Faculty of Health, Liverpool John Moores University, Liverpool, United Kingdom
| |
Collapse
|
4
|
Cao XY, Aimaier R, Yang J, Yang J, Chen ZY, Zhao JJ, Yin L, Zhang Q, You J, Zhang H, Li HR, Chen JY, Mao QC, Yang LP, Yu F, Zhao HP, Zhao HX. Effect of bacillus subtilis strain Z15 secondary metabolites on immune function in mice. BMC Genomics 2023; 24:273. [PMID: 37208602 PMCID: PMC10198031 DOI: 10.1186/s12864-023-09313-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Accepted: 04/14/2023] [Indexed: 05/21/2023] Open
Abstract
BACKGROUND Previous studies have shown that secondary metabolites of Bacillus subtilis strain Z15 (BS-Z15) are effective in treating fungal infections in mice. To evaluate whether it also modulates immune function in mice to exert antifungal effects, we investigated the effect of BS-Z15 secondary metabolites on both the innate and adaptive immune functions of mice, and explored its molecular mechanism through blood transcriptome analysis. RESULTS The study showed that BS-Z15 secondary metabolites increased the number of monocytes and platelets in the blood, improved natural killer (NK) cell activity and phagocytosis of monocytes-macrophages, increased the conversion rate of lymphocytes in the spleen, the number of T lymphocytes and the antibody production capacity of mice, and increased the levels of Interferon gamma (IFN-γ), Interleukin-6 (IL-6), Immunoglobulin G (IgG) and Immunoglobulin M (IgM) in plasma. The blood transcriptome analysis revealed 608 differentially expressed genes following treatment with BS-Z15 secondary metabolites, all of which were significantly enriched in the Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) terms for immune-related entries and pathways such as Tumor Necrosis Factor (TNF) and Toll-like receptor (TLR) signaling pathways, and upregulated expression levels of immune-related genes such as Complement 1q B chain (C1qb), Complement 4B (C4b), Tetracyclin Resistant (TCR) and Regulatory Factor X, 5 (RFX5). CONCLUSIONS BS-Z15 secondary metabolites were shown to enhance innate and adaptive immune function in mice, laying a theoretical foundation for its development and application in the field of immunity.
Collapse
Affiliation(s)
- Xi-Yuan Cao
- Xinjiang Key Laboratory of Special Species Conservation and Regulatory Biology, College of Life Science, Xinjiang Normal University, Urumqi, China
| | - Reyihanguli Aimaier
- Xinjiang Key Laboratory of Special Species Conservation and Regulatory Biology, College of Life Science, Xinjiang Normal University, Urumqi, China
| | - Jun Yang
- Xinjiang Key Laboratory of Special Species Conservation and Regulatory Biology, College of Life Science, Xinjiang Normal University, Urumqi, China
| | - Jing Yang
- Xinjiang Key Laboratory of Special Species Conservation and Regulatory Biology, College of Life Science, Xinjiang Normal University, Urumqi, China
| | - Zhong-Yi Chen
- Xinjiang Key Laboratory of Special Species Conservation and Regulatory Biology, College of Life Science, Xinjiang Normal University, Urumqi, China
| | - Jing-Jing Zhao
- Xinjiang Key Laboratory of Special Species Conservation and Regulatory Biology, College of Life Science, Xinjiang Normal University, Urumqi, China
| | - Li Yin
- Beijing Key Laboratory of Gene Resource and Molecular Development, College of Life Sciences, Beijing Normal University, Beijing, China
| | - Qi Zhang
- Beijing Key Laboratory of Gene Resource and Molecular Development, College of Life Sciences, Beijing Normal University, Beijing, China
| | - Jia You
- Xinjiang Key Laboratory of Special Species Conservation and Regulatory Biology, College of Life Science, Xinjiang Normal University, Urumqi, China
| | - Hui Zhang
- Xinjiang Key Laboratory of Special Species Conservation and Regulatory Biology, College of Life Science, Xinjiang Normal University, Urumqi, China
| | - Hao-Ran Li
- Xinjiang Key Laboratory of Special Species Conservation and Regulatory Biology, College of Life Science, Xinjiang Normal University, Urumqi, China
| | - Jia-Yi Chen
- Xinjiang Key Laboratory of Special Species Conservation and Regulatory Biology, College of Life Science, Xinjiang Normal University, Urumqi, China
| | - Qing-Chen Mao
- Xinjiang Key Laboratory of Special Species Conservation and Regulatory Biology, College of Life Science, Xinjiang Normal University, Urumqi, China
| | - Li-Ping Yang
- Xinjiang Key Laboratory of Special Species Conservation and Regulatory Biology, College of Life Science, Xinjiang Normal University, Urumqi, China
| | - Fei Yu
- Xinjiang Key Laboratory of Special Species Conservation and Regulatory Biology, College of Life Science, Xinjiang Normal University, Urumqi, China.
| | - He-Ping Zhao
- Beijing Key Laboratory of Gene Resource and Molecular Development, College of Life Sciences, Beijing Normal University, Beijing, China.
| | - Hui-Xin Zhao
- Xinjiang Key Laboratory of Special Species Conservation and Regulatory Biology, College of Life Science, Xinjiang Normal University, Urumqi, China.
| |
Collapse
|
5
|
Abstract
The highly conserved histones in different species seem to represent a very ancient and universal innate host defense system against microorganisms in the biological world. Histones are the essential part of nuclear matter and act as a control switch for DNA transcription. However, histones are also found in the cytoplasm, cell membranes, and extracellular fluid, where they function as host defenses and promote inflammatory responses. In some cases, extracellular histones can act as damage-associated molecular patterns (DAMPs) and bind to pattern recognition receptors (PRRs), thereby triggering innate immune responses and causing initial organ damage. Histones and their fragments serve as antimicrobial peptides (AMPs) to directly eliminate bacteria, viruses, fungi, and parasites in vitro and in vivo. Histones are also involved in phagocytes-related innate immune response as components of neutrophil extracellular traps (NETs), neutrophil activators, and plasminogen receptors. In addition, as a considerable part of epigenetic regulation, histone modifications play a vital role in regulating the innate immune response and expression of corresponding defense genes. Here, we review the regulatory role of histones in innate immune response, which provides a new strategy for the development of antibiotics and the use of histones as therapeutic targets for inflammatory diseases, sepsis, autoimmune diseases, and COVID-19.
Collapse
Affiliation(s)
- Xia Li
- Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, Institute of Pathogenic Biology, Hengyang Medical College, University of South China, Hengyang, Hunan, China
| | - Youyuan Ye
- Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, Institute of Pathogenic Biology, Hengyang Medical College, University of South China, Hengyang, Hunan, China
| | - Kailan Peng
- Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, Institute of Pathogenic Biology, Hengyang Medical College, University of South China, Hengyang, Hunan, China
| | - Zhuo Zeng
- Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, Institute of Pathogenic Biology, Hengyang Medical College, University of South China, Hengyang, Hunan, China
| | - Li Chen
- Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, Institute of Pathogenic Biology, Hengyang Medical College, University of South China, Hengyang, Hunan, China
| | - Yanhua Zeng
- Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, Institute of Pathogenic Biology, Hengyang Medical College, University of South China, Hengyang, Hunan, China,Department of Dermatology and Venereology, The First Affiliated Hospital, University of South China, Hengyang, Hunan, China,*Correspondence: Yanhua Zeng, ;
| |
Collapse
|
6
|
Abstract
Systemic autoimmune diseases are characterized by the failure of the immune system to differentiate self from non-self. These conditions are associated with significant morbidity and mortality, and they can affect many organs and systems, having significant clinical heterogeneity. Recent discoveries have highlighted that neutrophils, and in particular the neutrophil extracellular traps that they can release upon activation, can have central roles in the initiation and perpetuation of systemic autoimmune disorders and orchestrate complex inflammatory responses that lead to organ damage. Dysregulation of neutrophil cell death can lead to the modification of autoantigens and their presentation to the adaptive immune system. Furthermore, subsets of neutrophils that seem to be more prevalent in patients with systemic autoimmune disorders can promote vascular damage and increased oxidative stress. With the emergence of new technologies allowing for improved assessments of neutrophils, the complexity of neutrophil biology and its dysregulation is now starting to be understood. In this Review, we provide an overview of the roles of neutrophils in systemic autoimmune and autoinflammatory diseases and address putative therapeutic targets that may be explored based on this new knowledge.
Collapse
|
7
|
Schrader JM, Stanisavljevic A, Xu F, Van Nostrand WE. Distinct Brain Proteomic Signatures in Cerebral Small Vessel Disease Rat Models of Hypertension and Cerebral Amyloid Angiopathy. J Neuropathol Exp Neurol 2022; 81:731-745. [PMID: 35856898 PMCID: PMC9803909 DOI: 10.1093/jnen/nlac057] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Cerebral small vessel diseases (CSVDs) are prominent contributors to vascular cognitive impairment and dementia and can arise from a range of etiologies. Cerebral amyloid angiopathy (CAA) and hypertension (HTN), both prevalent in the elderly population, lead to cerebral microhemorrhages, macrohemorrhages, and white matter damage. However, their respective underlying mechanisms and molecular events are poorly understood. Here, we show that the transgenic rat model of CAA type 1 (rTg-DI) exhibits perivascular inflammation that is lacking in the spontaneously hypertensive stroke-prone (SHR-SP) rat model of HTN. Alternatively, SHR-SP rats display notable dilation of arteriolar perivascular spaces. Comparative proteomics analysis revealed few shared altered proteins, with key proteins such as ANXA3, H2A, and HTRA1 unique to rTg-DI rats, and Nt5e, Flot-1 and Flot-2 unique to SHR-SP rats. Immunolabeling confirmed that upregulation of ANXA3, HTRA1, and neutrophil extracellular trap proteins were distinctly associated with rTg-DI rats. Pathway analysis predicted activation of TGF-β1 and TNFα in rTg-DI rat brain, while insulin signaling was reduced in the SHR-SP rat brain. Thus, we report divergent protein signatures associated with distinct cerebral vessel pathologies in the SHR-SP and rTg-DI rat models and provide new mechanistic insight into these different forms of CSVD.
Collapse
Affiliation(s)
- Joseph M Schrader
- From the George and Anne Ryan Institute for Neuroscience,Department of Biomedical and Pharmaceutical Sciences, University of Rhode Island, Kingston, Rhode Island, USA
| | - Aleksandra Stanisavljevic
- From the George and Anne Ryan Institute for Neuroscience,Department of Biomedical and Pharmaceutical Sciences, University of Rhode Island, Kingston, Rhode Island, USA
| | - Feng Xu
- From the George and Anne Ryan Institute for Neuroscience,Department of Biomedical and Pharmaceutical Sciences, University of Rhode Island, Kingston, Rhode Island, USA
| | - William E Van Nostrand
- Send correspondence to: William E. Van Nostrand, PhD, George and Anne Ryan Institute for Neuroscience, Department of Biomedical and Pharmaceutical Sciences, University of Rhode Island, 130 Flagg Road, Kingston, RI 02881, USA; E-mail:
| |
Collapse
|
8
|
Arnaud M, Demonchy J, Arrii E, Luperto M, Lion J, Fodil S, Pons S, Mooney N, Zafrani L. Endothelial Cells Activated by Extracellular Histones Promote Foxp3 + Suppressive Treg Cells In Vitro. Int J Mol Sci 2022; 23:ijms23094527. [PMID: 35562918 PMCID: PMC9103825 DOI: 10.3390/ijms23094527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 04/13/2022] [Accepted: 04/15/2022] [Indexed: 11/16/2022] Open
Abstract
Histones are widely recognized as pro-inflammatory mediators upon their release from the nucleus into the extracellular space. However, their impact on endothelial cell immunogenicity is unknown. Endothelial cells, Human Microvascular Endothelial cells 1 (HMEC1), have been exposed to recombinant histones in order to study their effect on the endothelial phenotype. We then studied the differentiation of CD4+-T lymphocytes subpopulations after three days of interaction with endothelial cells in vitro and observed that histone-treated endothelial cells differentiate a suppressive FoxP3+ T regulator subpopulation that expressed Human Leucocyte Antigen DR (HLA-DR) and Cytotoxic T-Lymphocyte-Associated protein 4 (CTLA4). Toll-Like Receptor 4 (TLR4) inhibition significantly decreased the expansion of these Treg cells. Moreover, blockade of Interleukin (IL)-6 and Intercellular Adhesion Molecule (ICAM)-1 in cocultures significantly decreased the expansion of Tregs, suggesting an IL-6 and ICAM-1 dependent pathway. Thus, beyond their inflammatory effects, extracellular histones may induce an increase of immunosuppressive Treg population via their action on endothelial cells. Further studies are needed to evaluate the impact on immunosuppression of an increase of peripheral suppressive Treg via endothelial cell activation by histones in vivo.
Collapse
Affiliation(s)
- Marine Arnaud
- Human Immunology, Pathophysiology and Immunotherapy, INSERM U 976, University Paris Cite, 75010 Paris, France; (M.A.); (J.D.); (E.A.); (M.L.); (J.L.); (S.F.); (S.P.); (N.M.)
| | - Jordane Demonchy
- Human Immunology, Pathophysiology and Immunotherapy, INSERM U 976, University Paris Cite, 75010 Paris, France; (M.A.); (J.D.); (E.A.); (M.L.); (J.L.); (S.F.); (S.P.); (N.M.)
| | - Eden Arrii
- Human Immunology, Pathophysiology and Immunotherapy, INSERM U 976, University Paris Cite, 75010 Paris, France; (M.A.); (J.D.); (E.A.); (M.L.); (J.L.); (S.F.); (S.P.); (N.M.)
| | - Marta Luperto
- Human Immunology, Pathophysiology and Immunotherapy, INSERM U 976, University Paris Cite, 75010 Paris, France; (M.A.); (J.D.); (E.A.); (M.L.); (J.L.); (S.F.); (S.P.); (N.M.)
| | - Julien Lion
- Human Immunology, Pathophysiology and Immunotherapy, INSERM U 976, University Paris Cite, 75010 Paris, France; (M.A.); (J.D.); (E.A.); (M.L.); (J.L.); (S.F.); (S.P.); (N.M.)
| | - Sofiane Fodil
- Human Immunology, Pathophysiology and Immunotherapy, INSERM U 976, University Paris Cite, 75010 Paris, France; (M.A.); (J.D.); (E.A.); (M.L.); (J.L.); (S.F.); (S.P.); (N.M.)
| | - Stéphanie Pons
- Human Immunology, Pathophysiology and Immunotherapy, INSERM U 976, University Paris Cite, 75010 Paris, France; (M.A.); (J.D.); (E.A.); (M.L.); (J.L.); (S.F.); (S.P.); (N.M.)
| | - Nuala Mooney
- Human Immunology, Pathophysiology and Immunotherapy, INSERM U 976, University Paris Cite, 75010 Paris, France; (M.A.); (J.D.); (E.A.); (M.L.); (J.L.); (S.F.); (S.P.); (N.M.)
| | - Lara Zafrani
- Human Immunology, Pathophysiology and Immunotherapy, INSERM U 976, University Paris Cite, 75010 Paris, France; (M.A.); (J.D.); (E.A.); (M.L.); (J.L.); (S.F.); (S.P.); (N.M.)
- Medical Intensive Care Unit, Assistance Publique des Hôpitaux de Paris, Saint Louis Hospital, 75010 Paris, France
- Correspondence:
| |
Collapse
|
9
|
Sanders NL, Martin IMC, Sharma A, Jones MR, Quinton LJ, Bosmann M, Mizgerd JP. Neutrophil Extracellular Traps as an Exacerbating Factor in Bacterial Pneumonia. Infect Immun 2022; 90:e0049121. [PMID: 35130455 DOI: 10.1128/IAI.00491-21] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Neutrophils are capable of extruding neutrophil extracellular traps (NETs), a network of granule proteins and chromatin material, upon activation. NETs provide defense against extracellular microbes, but histones in NETs can also induce cytotoxicity and activate inflammatory responses. The relevance of NETs to bacterial pneumonias is beginning to be defined. In the present study, we found that the extracellular concentration of citrullinated histone H3, a component of NETs, was elevated in bronchoalveolar lavage fluid recovered from mice with diverse bacterial pneumonias and correlated with neutrophil infiltration and cell death in the lungs as well as levels of H4. Because the histone H4 component of NETs is sufficient to stimulate inflammation, we tested its effects in the air spaces of the lungs. Recombinant histone H4 in the noninflamed lung produced only modest effects, but in the setting of neutrophilic inflammation, H4 substantially increased pulmonary neutrophils, NETs, necrosis, and edema. However, blockade of histone H4 with a monoclonal antibody during pneumonia did not significantly alter measures of lung damage. Taken together, these results implicate NETs and extracellular histone H4 in exacerbating the lung injury resulting from bacterial pneumonia.
Collapse
|
10
|
Blanter M, Cockx M, Wittebols L, Abouelasrar Salama S, De Bondt M, Berghmans N, Pörtner N, Vanbrabant L, Lorent N, Gouwy M, Boon M, Struyf S. Sputum from patients with primary ciliary dyskinesia contains high numbers of dysfunctional neutrophils and inhibits efferocytosis. Respir Res 2022; 23:359. [PMID: 36528664 PMCID: PMC9758951 DOI: 10.1186/s12931-022-02280-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Accepted: 12/05/2022] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Primary ciliary dyskinesia (PCD) is a genetic disorder characterized by recurrent airway infection and inflammation. There is no cure for PCD and to date there are no specific treatments available. Neutrophils are a crucial part of the immune system and are known to be dysfunctional in many inflammatory diseases. So far, the role of the neutrophils in PCD airways is largely unknown. The purpose of this study was to investigate the phenotype and function of airway neutrophils in PCD, and compare them to blood neutrophils. METHODS Paired peripheral blood and spontaneously expectorated sputum samples from patients with PCD (n = 32) and a control group of patients with non-PCD, non-cystic fibrosis bronchiectasis (n = 5) were collected. The expression of neutrophil-specific surface receptors was determined by flow cytometry. Neutrophil function was assessed by measuring the extent of actin polymerization, production of reactive oxygen species (ROS) and release of neutrophil extracellular traps (NETs) in response to activating stimuli. RESULTS Sputum neutrophils displayed a highly activated phenotype and were unresponsive to stimuli that would normally induce ROS production, actin polymerization and the expulsion of NETs. In addition, PCD sputum displayed high activity of neutrophil elastase, and impaired the efferocytosis by healthy donor macrophages. CONCLUSIONS Sputum neutrophils in PCD are dysfunctional and likely contribute to ongoing inflammation in PCD airways. Further research should focus on anti-inflammatory therapies and stimulation of efferocytosis as a strategy to treat PCD.
Collapse
Affiliation(s)
- Marfa Blanter
- grid.5596.f0000 0001 0668 7884Laboratory of Molecular Immunology, Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, University of Leuven, 3000 Leuven, Belgium
| | - Maaike Cockx
- grid.5596.f0000 0001 0668 7884Laboratory of Molecular Immunology, Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, University of Leuven, 3000 Leuven, Belgium
| | - Liesel Wittebols
- grid.5596.f0000 0001 0668 7884Laboratory of Molecular Immunology, Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, University of Leuven, 3000 Leuven, Belgium
| | - Sara Abouelasrar Salama
- grid.5596.f0000 0001 0668 7884Laboratory of Molecular Immunology, Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, University of Leuven, 3000 Leuven, Belgium
| | - Mirre De Bondt
- grid.5596.f0000 0001 0668 7884Laboratory of Molecular Immunology, Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, University of Leuven, 3000 Leuven, Belgium
| | - Nele Berghmans
- grid.5596.f0000 0001 0668 7884Laboratory of Molecular Immunology, Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, University of Leuven, 3000 Leuven, Belgium
| | - Noëmie Pörtner
- grid.5596.f0000 0001 0668 7884Laboratory of Molecular Immunology, Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, University of Leuven, 3000 Leuven, Belgium
| | - Lotte Vanbrabant
- grid.5596.f0000 0001 0668 7884Laboratory of Molecular Immunology, Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, University of Leuven, 3000 Leuven, Belgium
| | - Natalie Lorent
- grid.410569.f0000 0004 0626 3338Pneumology and Cystic Fibrosis Unit, Department of Pneumology, University Hospitals Leuven, 3000 Leuven, Belgium
| | - Mieke Gouwy
- grid.5596.f0000 0001 0668 7884Laboratory of Molecular Immunology, Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, University of Leuven, 3000 Leuven, Belgium
| | - Mieke Boon
- grid.410569.f0000 0004 0626 3338Pediatric Pneumology and Cystic Fibrosis Unit, Department of Pediatrics, University Hospitals Leuven, 3000 Leuven, Belgium
| | - Sofie Struyf
- grid.5596.f0000 0001 0668 7884Laboratory of Molecular Immunology, Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, University of Leuven, 3000 Leuven, Belgium
| |
Collapse
|
11
|
Schrader JM, Xu F, Van Nostrand WE. Distinct brain regional proteome changes in the rTg-DI rat model of cerebral amyloid angiopathy. J Neurochem 2021; 159:273-291. [PMID: 34218440 DOI: 10.1111/jnc.15463] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 06/02/2021] [Accepted: 06/30/2021] [Indexed: 12/23/2022]
Abstract
Cerebral amyloid angiopathy (CAA), a prevalent cerebral small vessel disease in the elderly and a common comorbidity of Alzheimer's disease, is characterized by cerebral vascular amyloid accumulation, cerebral infarction, microbleeds, and intracerebral hemorrhages and is a prominent contributor to vascular cognitive impairment and dementia. Here, we investigate proteome changes associated with specific pathological features in several brain regions of rTg-DI rats, a preclinical model of CAA. Whereas varying degrees of microvascular amyloid and associated neuroinflammation are found in several brain regions, the presence of microbleeds and occluded small vessels is largely restricted to the thalamic region of rTg-DI rats, indicating different levels of CAA and associated pathologies occur in distinct brain regions in this model. Here, using SWATHLC-MS/MS, we report specific proteomic analysis of isolated brain regions and employ pathway analysis to correlate regionally specific proteomic changes with uniquely implicated molecular pathways. Pathway analysis suggested common activation of tumor necrosis factor α (TNFα), abnormal nervous system morphology, and neutrophil degranulation in all three regions. Activation of transforming growth factor-β1 (TGF-β1) was common to the hippocampus and thalamus, which share high CAA loads, while the thalamus, which uniquely exhibits thrombotic events, additionally displayed activation of thrombin and aggregation of blood cells. Thus, we present significant and new insight into the cerebral proteome changes found in distinct brain regions with differential CAA-related pathologies of rTg-DI rats and provide new information on potential pathogenic mechanisms associated with these regional disease processes.
Collapse
Affiliation(s)
- Joseph M Schrader
- Department of Biomedical and Pharmaceutical Sciences, George & Anne Ryan Institute for Neuroscience, University of Rhode Island, Kingston, RI, USA
| | - Feng Xu
- Department of Biomedical and Pharmaceutical Sciences, George & Anne Ryan Institute for Neuroscience, University of Rhode Island, Kingston, RI, USA
| | - William E Van Nostrand
- Department of Biomedical and Pharmaceutical Sciences, George & Anne Ryan Institute for Neuroscience, University of Rhode Island, Kingston, RI, USA
| |
Collapse
|
12
|
Shi L, Aymonnier K, Wagner DD. Neutrophil stimulation with citrullinated histone H4 slows down calcium influx and reduces NET formation compared with native histone H4. PLoS One 2021; 16:e0251726. [PMID: 33999963 DOI: 10.1371/journal.pone.0251726] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Accepted: 05/03/2021] [Indexed: 12/12/2022] Open
Abstract
Peptidylarginine deiminase 4 (PAD4) catalyzes posttranslational modification of many target proteins through converting protein arginine or mono-methylarginine to citrulline. Neutrophil extracellular trap (NET) formation is the most dramatic manifestation of PAD4-mediated hypercitrullination reaction in neutrophils, which is characterized by the release of nuclear chromatin to form a chromatin network in the extracellular space. Histones H4, one of the major protein components of chromatin, is released into the extracellular space during sepsis, trauma, and ischemia-reperfusion injury and can also be released during the process of NET formation, along with its citrullinated form. The present study showed that histone H4 can induce NET formation in a calcium and PAD4 dependent manner. Histone H4 caused permeabilization of the neutrophil membrane and sustained rise in intracellular calcium that is necessary for activation of PAD4. In comparison, citrullinated histone H4 induced less calcium influx compared with its native form, leading to reduced NET formation. These studies suggest that citrullinated histone H4 could serve as a brake in the pathology of NETs, slowing down the vicious circle between histone H4 and NETs.
Collapse
|
13
|
Moiana M, Aranda F, de Larrañaga G. A focus on the roles of histones in health and diseases. Clin Biochem 2021; 94:12-19. [PMID: 33895124 DOI: 10.1016/j.clinbiochem.2021.04.019] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 04/13/2021] [Accepted: 04/18/2021] [Indexed: 11/28/2022]
Abstract
Over time, the knowledge on the role of histones has significantly changed. Initially, histones were only known as DNA packaging proteins but later, it was discovered that they act extracellularly as powerful antimicrobial agents and also as potentially self-detrimental agents. Indeed, histones were found to be the most abundant proteins within neutrophil extracellular traps what ultimately highlighted their microbicidal function. In addition, extracellular histones proved to be involved in triggering exacerbated inflammatory and coagulation responses, depending on the cell type affected. Consequently, several investigations were conducted towards studying the potential of histones and their derivatives as either biomarkers or therapeutic target candidates in different diseases in which inflammation and thrombosis have a key pathophysiological role, such as sepsis, thrombosis and different types of cancer. The main objective of this review is to summarize and discuss the current state of the art with regard to both beneficial and harmful roles of histones and also their possible use as biomarkers and therapeutic targets.
Collapse
Affiliation(s)
- Mauro Moiana
- Hemostasis and Thrombosis Laboratory, Hospital of Infectious Diseases "F. J. Muñiz", Buenos Aires, Argentina
| | - Federico Aranda
- Hemostasis and Thrombosis Laboratory, Hospital of Infectious Diseases "F. J. Muñiz", Buenos Aires, Argentina
| | - Gabriela de Larrañaga
- Hemostasis and Thrombosis Laboratory, Hospital of Infectious Diseases "F. J. Muñiz", Buenos Aires, Argentina.
| |
Collapse
|
14
|
Li Y, Wan D, Luo X, Song T, Wang Y, Yu Q, Jiang L, Liao R, Zhao W, Su B. Circulating Histones in Sepsis: Potential Outcome Predictors and Therapeutic Targets. Front Immunol 2021; 12:650184. [PMID: 33868288 PMCID: PMC8044749 DOI: 10.3389/fimmu.2021.650184] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Accepted: 03/11/2021] [Indexed: 02/05/2023] Open
Abstract
Sepsis is defined as a life-threatening organ dysfunction caused by a dysregulated host response to infection and is associated with high morbidity and mortality. Circulating histones (CHs), a group of damage-associated molecular pattern molecules mainly derived from neutrophil extracellular traps, play a crucial role in sepsis by mediating inflammation response, organ injury and death through Toll-like receptors or inflammasome pathways. Herein, we first elucidate the molecular mechanisms of histone-induced inflammation amplification, endothelium injury and cascade coagulation activation, and discuss the close correlation between elevated level of CHs and disease severity as well as mortality in patients with sepsis. Furthermore, current state-of-the-art on anti-histone therapy with antibodies, histone-binding proteins (namely recombinant thrombomodulin and activated protein C), and heparin is summarized to propose promising approaches for sepsis treatment.
Collapse
Affiliation(s)
- Yupei Li
- Department of Nephrology of West China Hospital, Institute for Disaster Management and Reconstruction, Sichuan University, Chengdu, China.,Department of Emergency Medicine of West China Hospital, Disaster Medical Center, Sichuan University, Chengdu, China.,Med-X Center for Materials, Sichuan University, Chengdu, China
| | - Dingyuan Wan
- West China School of Medicine, Sichuan University, Chengdu, China
| | - Xinyao Luo
- West China School of Medicine, Sichuan University, Chengdu, China
| | - Tao Song
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, China
| | - Yiran Wang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, China
| | - Qiao Yu
- Department of Nephrology of West China Hospital, Institute for Disaster Management and Reconstruction, Sichuan University, Chengdu, China.,Department of Emergency Medicine of West China Hospital, Disaster Medical Center, Sichuan University, Chengdu, China.,Med-X Center for Materials, Sichuan University, Chengdu, China
| | - Luojia Jiang
- Department of Nephrology of West China Hospital, Institute for Disaster Management and Reconstruction, Sichuan University, Chengdu, China
| | - Ruoxi Liao
- Department of Nephrology of West China Hospital, Institute for Disaster Management and Reconstruction, Sichuan University, Chengdu, China
| | - Weifeng Zhao
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, China
| | - Baihai Su
- Department of Nephrology of West China Hospital, Institute for Disaster Management and Reconstruction, Sichuan University, Chengdu, China.,Department of Emergency Medicine of West China Hospital, Disaster Medical Center, Sichuan University, Chengdu, China.,Med-X Center for Materials, Sichuan University, Chengdu, China.,West China School of Medicine, Sichuan University, Chengdu, China
| |
Collapse
|
15
|
Hsieh IN, White M, Hoeksema M, Deluna X, Hartshorn K. Histone H4 potentiates neutrophil inflammatory responses to influenza A virus: Down-modulation by H4 binding to C-reactive protein and Surfactant protein D. PLoS One 2021; 16:e0247605. [PMID: 33635872 PMCID: PMC7909658 DOI: 10.1371/journal.pone.0247605] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Accepted: 02/10/2021] [Indexed: 01/05/2023] Open
Abstract
Neutrophils participate in the early phase of the innate response to uncomplicated influenza A virus (IAV) infection but also are a major component in later stages of severe IAV or COVID 19 infection where neutrophil extracellular traps (NETs) and associated cell free histones are highly pro-inflammatory. It is likely that IAV interacts with histones during infection. We show that histone H4 binds to IAV and aggregates viral particles. In addition, histone H4 markedly potentiates IAV induced neutrophil respiratory burst responses. Prior studies have shown reactive oxidants to be detrimental during severe IAV infection. C reactive protein (CRP) and surfactant protein D (SP-D) rise during IAV infection. We now show that both of these innate immune proteins bind to histone H4 and significantly down regulate respiratory burst and other responses to histone H4. Isolated constructs composed only of the neck and carbohydrate recognition domain of SP-D also bind to histone H4 and partially limit neutrophil responses to it. These studies indicate that complexes formed of histones and IAV are a potent neutrophil activating stimulus. This finding could account for excess inflammation during IAV or other severe viral infections. The ability of CRP and SP-D to bind to histone H4 may be part of a protective response against excessive inflammation in vivo.
Collapse
Affiliation(s)
- I-Ni Hsieh
- Department of Medicine, Section of Hematology Oncology, Boston University School of Medicine, Boston, Massachusetts, United States of America
| | - Mitchell White
- Department of Medicine, Section of Hematology Oncology, Boston University School of Medicine, Boston, Massachusetts, United States of America
| | | | - Xavier Deluna
- Department of Medicine, Section of Hematology Oncology, Boston University School of Medicine, Boston, Massachusetts, United States of America
| | - Kevan Hartshorn
- Department of Medicine, Section of Hematology Oncology, Boston University School of Medicine, Boston, Massachusetts, United States of America
- * E-mail:
| |
Collapse
|
16
|
Messerer DAC, Schmidt H, Frick M, Huber-Lang M. Ion and Water Transport in Neutrophil Granulocytes and Its Impairment during Sepsis. Int J Mol Sci 2021; 22:1699. [PMID: 33567720 PMCID: PMC7914618 DOI: 10.3390/ijms22041699] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 01/30/2021] [Accepted: 02/01/2021] [Indexed: 12/11/2022] Open
Abstract
Neutrophil granulocytes are the vanguard of innate immunity in response to numerous pathogens. Their activity drives the clearance of microbe- and damage-associated molecular patterns, thereby contributing substantially to the resolution of inflammation. However, excessive stimulation during sepsis leads to cellular unresponsiveness, immunological dysfunction, bacterial expansion, and subsequent multiple organ dysfunction. During the short lifespan of neutrophils, they can become significantly activated by complement factors, cytokines, and other inflammatory mediators. Following stimulation, the cells respond with a defined (electro-)physiological pattern, including depolarization, calcium influx, and alkalization as well as with increased metabolic activity and polarization of the actin cytoskeleton. Activity of ion transport proteins and aquaporins is critical for multiple cellular functions of innate immune cells, including chemotaxis, generation of reactive oxygen species, and phagocytosis of both pathogens and tissue debris. In this review, we first describe the ion transport proteins and aquaporins involved in the neutrophil ion-water fluxes in response to chemoattractants. We then relate ion and water flux to cellular functions with a focus on danger sensing, chemotaxis, phagocytosis, and oxidative burst and approach the role of altered ion transport protein expression and activity in impaired cellular functions and cell death during systemic inflammation as in sepsis.
Collapse
Affiliation(s)
- David Alexander Christian Messerer
- Institute of Clinical and Experimental Trauma-Immunology, University Hospital of Ulm, 89081 Ulm, Germany;
- Department of Anesthesiology and Intensive Care Medicine, University Hospital of Ulm, 89081 Ulm, Germany
| | - Hanna Schmidt
- Institute of General Physiology, Ulm University, 89081 Ulm, Germany; (H.S.); (M.F.)
- Department of Pediatrics and Adolescent Medicine, University Hospital of Ulm, 89081 Ulm, Germany
| | - Manfred Frick
- Institute of General Physiology, Ulm University, 89081 Ulm, Germany; (H.S.); (M.F.)
| | - Markus Huber-Lang
- Institute of Clinical and Experimental Trauma-Immunology, University Hospital of Ulm, 89081 Ulm, Germany;
| |
Collapse
|
17
|
Abstract
There is abundant evidence that the innate immune response to influenza A virus (IAV) is highly complex and plays a key role in protection against IAV induced infection and illness. Unfortunately it also clear that aspects of innate immunity can lead to severe morbidity or mortality from IAV, including inflammatory lung injury, bacterial superinfection, and exacerbation of reactive airways disease. We review broadly the virus and host factors that result in adverse outcomes from IAV and show evidence that inflammatory responses can become damaging even apart from changes in viral replication per se, with special focus on the positive and adverse effects of neutrophils and monocytes. We then evaluate in detail the role of soluble innate inhibitors including surfactant protein D and antimicrobial peptides that have a potential dual capacity for down-regulating viral replication and also inhibiting excessive inflammatory responses and how these innate host factors could possibly be harnessed to treat IAV infection. Where appropriate we draw comparisons and contrasts the SARS-CoV viruses and IAV in an effort to point out where the extensive knowledge existing regarding severe IAV infection could help guide research into severe COVID 19 illness or vice versa.
Collapse
Affiliation(s)
- Kevan L Hartshorn
- Section of Hematology Oncology, Boston University School of Medicine, Boston, MA, United States
| |
Collapse
|