1
|
Zielke C, Nielsen JE, Lin JS, Barron AE. Between good and evil: Complexation of the human cathelicidin LL-37 with nucleic acids. Biophys J 2024; 123:1316-1328. [PMID: 37919905 PMCID: PMC11163296 DOI: 10.1016/j.bpj.2023.10.035] [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: 08/30/2023] [Revised: 10/23/2023] [Accepted: 10/31/2023] [Indexed: 11/04/2023] Open
Abstract
The innate immune system provides a crucial first line of defense against invading pathogens attacking the body. As the only member of the human cathelicidin family, the antimicrobial peptide LL-37 has been shown to have antiviral, antifungal, and antibacterial properties. In complexation with nucleic acids, LL-37 is suggested to maintain its beneficial health effects while also acting as a condensation agent for the nucleic acid. Complexes formed by LL-37 and nucleic acids have been shown to be immunostimulatory with a positive impact on the human innate immune system. However, some studies also suggest that in some circumstances, LL-37/nucleic acid complexes may be a contributing factor to autoimmune disorders such as psoriasis and systemic lupus erythematosus. This review provides a comprehensive discussion of research highlighting the beneficial health effects of LL-37/nucleic acid complexes, as well as discussing observed detrimental effects. We will emphasize why it is important to investigate and elucidate structural characteristics, such as condensation patterns of nucleic acids within complexation, and their mechanisms of action, to shed light on the intricate physiological effects of LL-37 and the seemingly contradictory role of LL-37/nucleic acid complexes in the innate immune response.
Collapse
Affiliation(s)
- Claudia Zielke
- Department of Bioengineering, Stanford University, Schools of Medicine and of Engineering, Stanford, California
| | - Josefine Eilsø Nielsen
- Department of Bioengineering, Stanford University, Schools of Medicine and of Engineering, Stanford, California; Department of Science and Environment, Roskilde University, Roskilde, Denmark
| | - Jennifer S Lin
- Department of Bioengineering, Stanford University, Schools of Medicine and of Engineering, Stanford, California
| | - Annelise E Barron
- Department of Bioengineering, Stanford University, Schools of Medicine and of Engineering, Stanford, California.
| |
Collapse
|
2
|
Poto R, Marone G, Galli SJ, Varricchi G. Mast cells: a novel therapeutic avenue for cardiovascular diseases? Cardiovasc Res 2024; 120:681-698. [PMID: 38630620 PMCID: PMC11135650 DOI: 10.1093/cvr/cvae066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 11/28/2023] [Accepted: 01/08/2024] [Indexed: 04/19/2024] Open
Abstract
Mast cells are tissue-resident immune cells strategically located in different compartments of the normal human heart (the myocardium, pericardium, aortic valve, and close to nerves) as well as in atherosclerotic plaques. Cardiac mast cells produce a broad spectrum of vasoactive and proinflammatory mediators, which have potential roles in inflammation, angiogenesis, lymphangiogenesis, tissue remodelling, and fibrosis. Mast cells release preformed mediators (e.g. histamine, tryptase, and chymase) and de novo synthesized mediators (e.g. cysteinyl leukotriene C4 and prostaglandin D2), as well as cytokines and chemokines, which can activate different resident immune cells (e.g. macrophages) and structural cells (e.g. fibroblasts and endothelial cells) in the human heart and aorta. The transcriptional profiles of various mast cell populations highlight their potential heterogeneity and distinct gene and proteome expression. Mast cell plasticity and heterogeneity enable these cells the potential for performing different, even opposite, functions in response to changing tissue contexts. Human cardiac mast cells display significant differences compared with mast cells isolated from other organs. These characteristics make cardiac mast cells intriguing, given their dichotomous potential roles of inducing or protecting against cardiovascular diseases. Identification of cardiac mast cell subpopulations represents a prerequisite for understanding their potential multifaceted roles in health and disease. Several new drugs specifically targeting human mast cell activation are under development or in clinical trials. Mast cells and/or their subpopulations can potentially represent novel therapeutic targets for cardiovascular disorders.
Collapse
Affiliation(s)
- Remo Poto
- Department of Translational Medical Sciences, University of Naples Federico II, Via S. Pansini 5, Naples 80131, Italy
- World Allergy Organization (WAO), Center of Excellence (CoE), Via S. Pansini 5, Naples 80131, Italy
| | - Gianni Marone
- Department of Translational Medical Sciences, University of Naples Federico II, Via S. Pansini 5, Naples 80131, Italy
- World Allergy Organization (WAO), Center of Excellence (CoE), Via S. Pansini 5, Naples 80131, Italy
- Center for Basic and Clinical Immunology Research (CISI), University of Naples Federico II, Via S. Pansini 5, Naples 80131, Italy
- Institute of Experimental Endocrinology and Oncology ‘G. Salvatore’, National Research Council (CNR), Via S. Pansini 5, Naples 80131, Italy
| | - Stephen J Galli
- Department of Pathology and the Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, 291 Campus Dr, Stanford, CA, USA
- Department of Microbiology and Immunology, Stanford University School of Medicine, 291 Campus Dr, Stanford, CA, USA
| | - Gilda Varricchi
- Department of Translational Medical Sciences, University of Naples Federico II, Via S. Pansini 5, Naples 80131, Italy
- World Allergy Organization (WAO), Center of Excellence (CoE), Via S. Pansini 5, Naples 80131, Italy
- Center for Basic and Clinical Immunology Research (CISI), University of Naples Federico II, Via S. Pansini 5, Naples 80131, Italy
- Institute of Experimental Endocrinology and Oncology ‘G. Salvatore’, National Research Council (CNR), Via S. Pansini 5, Naples 80131, Italy
| |
Collapse
|
3
|
Saha S, Barik D, Biswas D. AMPs as Host-Directed Immunomodulatory Agents against Skin Infections Caused by Opportunistic Bacterial Pathogens. Antibiotics (Basel) 2024; 13:439. [PMID: 38786167 PMCID: PMC11117387 DOI: 10.3390/antibiotics13050439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 01/23/2024] [Accepted: 01/25/2024] [Indexed: 05/25/2024] Open
Abstract
Skin is the primary and largest protective organ of the human body. It produces a number of highly evolved arsenal of factors to counter the continuous assault of foreign materials and pathogens from the environment. One such potent factor is the repertoire of Antimicrobial Peptides (AMPs) that not only directly destroys invading pathogens, but also optimally modulate the immune functions of the body to counter the establishment and spread of infections. The canonical direct antimicrobial functions of these AMPs have been in focus for a long time to design principles for enhanced therapeutics, especially against the multi-drug resistant pathogens. However, in recent times the immunomodulatory functions performed by these peptides at sub-microbicidal concentrations have been a point of major focus in the field of host-directed therapeutics. Such strategies have the added benefit of not having the pathogens develop resistance against the immunomodulatory pathways, since the pathogens exploit these signaling pathways to obtain and survive within the host. Thus, this review summarizes the potent immunomodulatory effect of these AMPs on, specifically, the different host immune cells with the view of providing a platform of information that might help in designing studies to exploit and formulate effective host-directed adjunct therapeutic strategies that would synergies with drug regimens to counter the current diversity of drug-resistant skin opportunistic pathogens.
Collapse
Affiliation(s)
| | | | - Debabrata Biswas
- Institute of Life Sciences, NALCO Square, Bhubaneswar 751023, Odisha, India; (S.S.); (D.B.)
| |
Collapse
|
4
|
Gigon L, Müller P, Haenni B, Iacovache I, Barbo M, Gosheva G, Yousefi S, Soragni A, von Ballmoos C, Zuber B, Simon HU. Membrane damage by MBP-1 is mediated by pore formation and amplified by mtDNA. Cell Rep 2024; 43:114084. [PMID: 38583154 DOI: 10.1016/j.celrep.2024.114084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 12/28/2023] [Accepted: 03/25/2024] [Indexed: 04/09/2024] Open
Abstract
Eosinophils play a crucial role in host defense while also contributing to immunopathology through the release of inflammatory mediators. Characterized by distinctive cytoplasmic granules, eosinophils securely store and rapidly release various proteins exhibiting high toxicity upon extracellular release. Among these, major basic protein 1 (MBP-1) emerges as an important mediator in eosinophil function against pathogens and in eosinophil-associated diseases. While MBP-1 targets both microorganisms and host cells, its precise mechanism remains elusive. We demonstrate that formation of small pores by MBP-1 in lipid bilayers induces membrane permeabilization and disrupts potassium balance. Additionally, we reveal that mitochondrial DNA (mtDNA) present in eosinophil extracellular traps (EETs) amplifies MBP-1 toxic effects, underscoring the pivotal role of mtDNA in EETs. Furthermore, we present evidence indicating that absence of CpG methylation in mtDNA contributes to the regulation of MBP-1-mediated toxicity. Taken together, our data suggest that the mtDNA scaffold within extracellular traps promotes MBP-1 toxicity.
Collapse
Affiliation(s)
- Lea Gigon
- Institute of Pharmacology, University of Bern, 3010 Bern, Switzerland
| | - Philipp Müller
- Department of Chemistry, Biochemistry, and Pharmaceutical Sciences, University of Bern, 3012 Bern, Switzerland
| | - Beat Haenni
- Institute of Anatomy, University of Bern, 3012 Bern, Switzerland
| | - Ioan Iacovache
- Institute of Anatomy, University of Bern, 3012 Bern, Switzerland
| | - Maruša Barbo
- Institute of Pharmacology, University of Bern, 3010 Bern, Switzerland; Faculty of Pharmacy, University of Ljubljana, 1000 Ljubljana, Slovenia
| | - Gordana Gosheva
- Institute of Pharmacology, University of Bern, 3010 Bern, Switzerland; Faculty of Pharmacy, University of Ljubljana, 1000 Ljubljana, Slovenia
| | - Shida Yousefi
- Institute of Pharmacology, University of Bern, 3010 Bern, Switzerland
| | - Alice Soragni
- Department of Orthopedic Surgery, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Christoph von Ballmoos
- Department of Chemistry, Biochemistry, and Pharmaceutical Sciences, University of Bern, 3012 Bern, Switzerland
| | - Benoît Zuber
- Institute of Anatomy, University of Bern, 3012 Bern, Switzerland
| | - Hans-Uwe Simon
- Institute of Pharmacology, University of Bern, 3010 Bern, Switzerland; Institute of Biochemistry, Brandenburg Medical School, 16816 Neuruppin, Germany.
| |
Collapse
|
5
|
Xia J, Zhang Z, Huang Y, Wang Y, Liu G. Regulation of neutrophil extracellular traps in cancer. Int J Cancer 2024; 154:773-785. [PMID: 37815294 DOI: 10.1002/ijc.34750] [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: 05/12/2023] [Revised: 08/22/2023] [Accepted: 09/25/2023] [Indexed: 10/11/2023]
Abstract
Neutrophil extracellular trap (NET) is one of the defense functions of neutrophils, which has a rapid ability to kill infections and is also crucial in a variety of immune-associated diseases including infections, tumors and autoimmune diseases. Recent studies have shown that NETs are closely related to the development of tumors. The regulatory role of NETs in tumors has been of interest to researchers. In addition to awakening latent tumor cells, NETs can also promote the proliferation and development of tumor cells and their metastasis to other sites. At the same time, NETs also have the effect of inhibiting tumors. At present, there are some new advances in the impact of NETs on tumor development, which will provide a more theoretical basis for developing NET-targeted drugs. Therefore, this review just summarized the formation process of NETs, the regulation of tumor development and the treatment methods based on NETs.
Collapse
Affiliation(s)
- Jingxuan Xia
- Key Laboratory of Cell Proliferation and Regulation Biology, Ministry of Education, College of Life Sciences, Beijing Normal University, Beijing, China
| | - Zhiyuan Zhang
- Key Laboratory of Cell Proliferation and Regulation Biology, Ministry of Education, College of Life Sciences, Beijing Normal University, Beijing, China
| | - Yijin Huang
- Key Laboratory of Cell Proliferation and Regulation Biology, Ministry of Education, College of Life Sciences, Beijing Normal University, Beijing, China
| | - Yufei Wang
- Key Laboratory of Cell Proliferation and Regulation Biology, Ministry of Education, College of Life Sciences, Beijing Normal University, Beijing, China
| | - Guangwei Liu
- Key Laboratory of Cell Proliferation and Regulation Biology, Ministry of Education, College of Life Sciences, Beijing Normal University, Beijing, China
| |
Collapse
|
6
|
Ibrahim N, Bleichert S, Klopf J, Kurzreiter G, Hayden H, Knöbl V, Artner T, Krall M, Stiglbauer-Tscholakoff A, Oehler R, Petzelbauer P, Busch A, Bailey MA, Eilenberg W, Neumayer C, Brostjan C. Reducing Abdominal Aortic Aneurysm Progression by Blocking Neutrophil Extracellular Traps Depends on Thrombus Formation. JACC Basic Transl Sci 2024; 9:342-360. [PMID: 38559632 PMCID: PMC10978405 DOI: 10.1016/j.jacbts.2023.11.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 10/02/2023] [Accepted: 11/01/2023] [Indexed: 04/04/2024]
Abstract
Neutrophil extracellular traps (NETs) are implicated in the pathogenesis of abdominal aortic aneurysm (AAA), located in adventitia and intraluminal thrombus. We compared the therapeutic potential of targeting upstream or downstream effector molecules of NET formation in 2 murine AAA models based on angiotensin II or peri-adventitial elastase application. In both models, NETs were detected in formed aneurysms at treatment start. Although NET inhibitors failed in the elastase model, they prevented progression of angiotensin II-induced aneurysms with thrombus, which resembles established human disease (including thrombus development). Blockade of upstream NET mediators was more effective than interference with downstream NET molecules.
Collapse
Affiliation(s)
- Nahla Ibrahim
- Division of Vascular Surgery, Department of General Surgery, Medical University of Vienna and University Hospital Vienna, Vienna, Austria
| | - Sonja Bleichert
- Division of Vascular Surgery, Department of General Surgery, Medical University of Vienna and University Hospital Vienna, Vienna, Austria
| | - Johannes Klopf
- Division of Vascular Surgery, Department of General Surgery, Medical University of Vienna and University Hospital Vienna, Vienna, Austria
| | - Gabriel Kurzreiter
- Division of Vascular Surgery, Department of General Surgery, Medical University of Vienna and University Hospital Vienna, Vienna, Austria
| | - Hubert Hayden
- Division of Vascular Surgery, Department of General Surgery, Medical University of Vienna and University Hospital Vienna, Vienna, Austria
| | - Viktoria Knöbl
- Division of Vascular Surgery, Department of General Surgery, Medical University of Vienna and University Hospital Vienna, Vienna, Austria
| | - Tyler Artner
- Division of Cardiology, Department of Internal Medicine II, Medical University of Vienna and University Hospital Vienna, Vienna, Austria
| | - Moritz Krall
- Division of Vascular Surgery, Department of General Surgery, Medical University of Vienna and University Hospital Vienna, Vienna, Austria
| | - Alexander Stiglbauer-Tscholakoff
- Division of Cardiovascular and Interventional Radiology, Division of Molecular and Gender Imaging, Department of Biomedical Imaging and Image Guided Therapy, Medical University of Vienna and University Hospital Vienna, Vienna, Austria
| | - Rudolf Oehler
- Division of Visceral Surgery, Department of General Surgery, Medical University of Vienna and University Hospital Vienna, Vienna, Austria
| | - Peter Petzelbauer
- Skin and Endothelium Research Division, Department of Dermatology, Medical University of Vienna and University Hospital Vienna, Vienna, Austria
| | - Albert Busch
- Department for Visceral, Thoracic and Vascular Surgery, Technical University of Dresden and University Hospital Carl-Gustav Carus, Dresden, Germany
| | - Marc A. Bailey
- Leeds Institute for Cardiovascular and Metabolic Medicine, School of Medicine, University of Leeds, Leeds, United Kingdom
- Leeds Vascular Institute, Leeds General Infirmary, Leeds, United Kingdom
| | - Wolf Eilenberg
- Division of Vascular Surgery, Department of General Surgery, Medical University of Vienna and University Hospital Vienna, Vienna, Austria
| | - Christoph Neumayer
- Division of Vascular Surgery, Department of General Surgery, Medical University of Vienna and University Hospital Vienna, Vienna, Austria
| | - Christine Brostjan
- Division of Vascular Surgery, Department of General Surgery, Medical University of Vienna and University Hospital Vienna, Vienna, Austria
| |
Collapse
|
7
|
Martínez-Cuevas FL, Cruz SL, González-Espinosa C. Methadone Requires the Co-Activation of μ-Opioid and Toll-Like-4 Receptors to Produce Extracellular DNA Traps in Bone-Marrow-Derived Mast Cells. Int J Mol Sci 2024; 25:2137. [PMID: 38396814 PMCID: PMC10889600 DOI: 10.3390/ijms25042137] [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: 01/19/2024] [Revised: 02/02/2024] [Accepted: 02/06/2024] [Indexed: 02/25/2024] Open
Abstract
Methadone is an effective and long-lasting analgesic drug that is also used in medication-assisted treatment for people with opioid use disorders. Although there is evidence that methadone activates μ-opioid and Toll-like-4 receptors (TLR-4s), its effects on distinct immune cells, including mast cells (MCs), are not well characterized. MCs express μ-opioid and Toll-like receptors (TLRs) and constitute an important cell lineage involved in allergy and effective innate immunity responses. In the present study, murine bone-marrow-derived mast cells (BMMCs) were treated with methadone to evaluate cell viability by flow cytometry, cell morphology with immunofluorescence and scanning electron microscopy, reactive oxygen species (ROS) production, and intracellular calcium concentration ([Ca2+]i) increase. We found that exposure of BMMCs to 0.5 mM or 1 mM methadone rapidly induced cell death by forming extracellular DNA traps (ETosis). Methadone-induced cell death depended on ROS formation and [Ca2+]i. Using pharmacological approaches and TLR4-defective BMMC cultures, we found that µ-opioid receptors were necessary for both methadone-induced ROS production and intracellular calcium increase. Remarkably, TLR4 receptors were also involved in methadone-induced ROS production as it did not occur in BMMCs obtained from TLR4-deficient mice. Finally, confocal microscopy images showed a significant co-localization of μ-opioid and TLR4 receptors that increased after methadone treatment. Our results suggest that methadone produces MCETosis by a mechanism requiring a novel crosstalk pathway between μ-opioid and TLR4 receptors.
Collapse
Affiliation(s)
- Frida L. Martínez-Cuevas
- Departamento de Farmacobiología, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (Cinvestav, IPN), Unidad Sede Sur, Calzada de los Tenorios No. 235, Col. Rinconada de las Hadas, México City CP 14330, Mexico;
| | - Silvia L. Cruz
- Departamento de Farmacobiología, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (Cinvestav, IPN), Unidad Sede Sur, Calzada de los Tenorios No. 235, Col. Rinconada de las Hadas, México City CP 14330, Mexico;
| | - Claudia González-Espinosa
- Departamento de Farmacobiología, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (Cinvestav, IPN), Unidad Sede Sur, Calzada de los Tenorios No. 235, Col. Rinconada de las Hadas, México City CP 14330, Mexico;
- Centro de Investigación Sobre el Envejecimiento, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (Cinvestav, IPN), Unidad Sede Sur, Calzada de los Tenorios, No. 235, Col. Rinconada de las Hadas, México City CP 14330, Mexico
| |
Collapse
|
8
|
Pan Q, Chen C, Yang YJ. Top Five Stories of the Cellular Landscape and Therapies of Atherosclerosis: Current Knowledge and Future Perspectives. Curr Med Sci 2024; 44:1-27. [PMID: 38057537 DOI: 10.1007/s11596-023-2818-2] [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: 07/25/2023] [Accepted: 10/22/2023] [Indexed: 12/08/2023]
Abstract
Atherosclerosis (AS) is characterized by impairment and apoptosis of endothelial cells, continuous systemic and focal inflammation and dysfunction of vascular smooth muscle cells, which is documented as the traditional cellular paradigm. However, the mechanisms appear much more complicated than we thought since a bulk of studies on efferocytosis, transdifferentiation and novel cell death forms such as ferroptosis, pyroptosis, and extracellular trap were reported. Discovery of novel pathological cellular landscapes provides a large number of therapeutic targets. On the other side, the unsatisfactory therapeutic effects of current treatment with lipid-lowering drugs as the cornerstone also restricts the efforts to reduce global AS burden. Stem cell- or nanoparticle-based strategies spurred a lot of attention due to the attractive therapeutic effects and minimized adverse effects. Given the complexity of pathological changes of AS, attempts to develop an almighty medicine based on single mechanisms could be theoretically challenging. In this review, the top stories in the cellular landscapes during the initiation and progression of AS and the therapies were summarized in an integrated perspective to facilitate efforts to develop a multi-targets strategy and fill the gap between mechanism research and clinical translation. The future challenges and improvements were also discussed.
Collapse
Affiliation(s)
- Qi Pan
- State Key Laboratory of Cardiovascular Disease, Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100037, China
| | - Cheng Chen
- State Key Laboratory of Cardiovascular Disease, Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100037, China
| | - Yue-Jin Yang
- State Key Laboratory of Cardiovascular Disease, Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100037, China.
| |
Collapse
|
9
|
Zmorzynski S, Kimicka-Szajwaj A, Szajwaj A, Czerwik-Marcinkowska J, Wojcierowski J. Genetic Changes in Mastocytes and Their Significance in Mast Cell Tumor Prognosis and Treatment. Genes (Basel) 2024; 15:137. [PMID: 38275618 PMCID: PMC10815783 DOI: 10.3390/genes15010137] [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: 12/14/2023] [Revised: 01/12/2024] [Accepted: 01/20/2024] [Indexed: 01/27/2024] Open
Abstract
Mast cell tumors are a large group of diseases occurring in dogs, cats, mice, as well as in humans. Systemic mastocytosis (SM) is a disease involving the accumulation of mast cells in organs. KIT gene mutations are very often seen in abnormal mast cells. In SM, high KIT/CD117 expression is observed; however, there are usually no KIT gene mutations present. Mastocytoma (MCT)-a form of cutaneous neoplasm-is common in animals but quite rare in humans. KIT/CD117 receptor mutations were studied as the typical changes for human mastocytosis. In 80% of human cases, the KIT gene substitution p.D816H was present. In about 25% of MCTs, metastasis was observed. Changes in the gene expression of certain genes, such as overexpression of the DNAJ3A3 gene, promote metastasis. In contrast, the SNORD93 gene blocks the expression of metastasis genes. The panel of miR-21-5p, miR-379, and miR-885 has a good efficiency in discriminating healthy and MCT-affected dogs, as well as MCT-affected dogs with and without nodal metastasis. Further studies on the pathobiology of mast cells can lead to clinical improvements, such as better MCT diagnosis and treatment. Our paper reviews studies on the topic of mast cells, which have been carried out over the past few years.
Collapse
|
10
|
Reyaz E, Puri N, Selvapandiyan A. Global Remodeling of Host Proteome in Response to Leishmania Infection. ACS Infect Dis 2024; 10:5-19. [PMID: 38084821 DOI: 10.1021/acsinfecdis.3c00492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2024]
Abstract
The protozoan parasite Leishmania possesses an intrinsic ability to modulate a multitude of pathways in the host, toward aiding its own proliferation. In response, the host reprograms its cellular, immunological, and metabolic machinery to evade the parasite's lethal impact. Besides inducing various antioxidant signaling pathways to counter the elevated stress response proteins like heme oxygenase-1 (HO-1), Leishmania also attempts to delay host cell apoptosis by promoting anti-apoptotic proteins like Bcl-2. The downstream modulation of apoptotic proteins is regulated by effector pathways, including the PI3K/Akt survival pathway, the mitogen-activated protein kinases (MAPKs) signaling pathway, and STAT phosphorylation. In addition, Leishmania assists in its infection in a time-dependent manner by modulating the level of various proteins of autophagic machinery. Immune effector cells, such as mast cells and neutrophils, entrap and kill the pathogen by secreting various granular proteins. In contrast, the host macrophages exert their leishmanicidal effect by secreting various cytokines, such as IL-2, IL-12, etc. An interplay of various signaling pathways occurs in an organized network that is highly specific to both pathogen and host species. This Review analyzes the modulation of expression of proteins, including the cytokines, providing a realistic approach toward understanding the pathophysiology of disease and predicting some prominent markers for disease intervention and vaccine support strategies.
Collapse
Affiliation(s)
- Enam Reyaz
- Department of Molecular Medicine, Jamia Hamdard, New Delhi 110062, India
| | - Niti Puri
- School of Life Sciences, Jawaharlal Nehru University, New Delhi 110067, India
| | | |
Collapse
|
11
|
Li S, Ying S, Wang Y, Lv Y, Qiao J, Fang H. Neutrophil extracellular traps and neutrophilic dermatosis: an update review. Cell Death Discov 2024; 10:18. [PMID: 38195543 PMCID: PMC10776565 DOI: 10.1038/s41420-023-01787-2] [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: 10/21/2023] [Revised: 12/08/2023] [Accepted: 12/19/2023] [Indexed: 01/11/2024] Open
Abstract
Neutrophils have both antimicrobial ability and pathogenic effect in the immune system, neutrophil extracellular traps (NETs) formation is one of the representative behaviors of their dual role. NETs formation was triggered by pathogen-related components and pathogen non-related proteins as cytokines to exert its effector functions. Recent studies indicate that the pathogenicity of NETs contributed to several skin diseases such as psoriasis, Stevens-Johnson syndrome, toxic epidermal necrolysis, and neutrophilic dermatosis. Especially in neutrophilic dermatosis, a heterogeneous group of inflammatory skin disorders characterized with sterile neutrophilic infiltrate on dermis, NETs formation was reported as the way of participation of neutrophils in the pathogenesis of these diseases. In this review, we describe the different processes of NETs formation, then summarized the most recent updates about the pathogenesis of neutrophilic dermatosis and the participation of NETs, including pyoderma gangrenosum and PAPA syndrome, Behçet syndrome, hidradenitis suppurativa, Sweet Syndrome, pustular dermatosis and other neutrophilic dermatosis. Furthermore, we discuss the link between NETs formation and the development of neutrophilic dermatosis.
Collapse
Affiliation(s)
- Sheng Li
- Department of Dermatology, The First Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang, China
| | - Shuni Ying
- Department of Dermatology, The First Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang, China
| | - Yuqian Wang
- Department of Dermatology, The First Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang, China
| | - Yelu Lv
- Department of Dermatology, The First Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang, China
| | - Jianjun Qiao
- Department of Dermatology, The First Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang, China.
| | - Hong Fang
- Department of Dermatology, The First Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang, China.
| |
Collapse
|
12
|
Rosell A, Karlström C, Dahlin JS, Boey D, Klimkowska M, Ax K, Thålin C, Ungerstedt J. No indication of aberrant neutrophil extracellular trap release in indolent or advanced systemic mastocytosis. Scand J Immunol 2024; 99:e13333. [PMID: 38112220 DOI: 10.1111/sji.13333] [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: 05/28/2023] [Revised: 09/13/2023] [Accepted: 09/16/2023] [Indexed: 12/21/2023]
Abstract
In disease states with chronic inflammation, there is a crosstalk between mast cells and neutrophil granulocytes in the inflamed microenvironment, which may be potentiated by tryptase. In systemic mastocytosis (SM), mast cells are constitutively active and tryptase is elevated in blood. Mast cell activation in SM leads to symptoms from various organs depending on where the active mast cells reside, for example, palpitations, flush, allergic symptoms including anaphylactic reactions, and osteoporosis. Whether neutrophil function is altered in SM is not well understood. In the current study, we assessed nucleosomal citrullinated histone H3 (H3Cit-DNA) as a proxy for neutrophil extracellular trap release in plasma from 55 patients with indolent and advanced SM. We observed a strong trend towards a correlation between leukocyte count, eosinophil count and neutrophil count and H3Cit-DNA levels in patients with advanced SM but not in indolent SM; however, no differences in H3Cit-DNA levels in SM patients compared with healthy controls. H3Cit-DNA levels did not correlate with SM disease burden, tryptase levels, history of anaphylaxis or presence of cutaneous mastocytosis; thus, there is no evidence of a general neutrophil extracellular trap release in SM. Interestingly, H3Cit-DNA levels and leukocyte counts were elevated in a subgroup of SM patients with aberrant mast cell CD2 expression, which warrants further investigation. In conclusion, we found no evidence of global increase in neutrophil extracellular trap release in SM.
Collapse
Affiliation(s)
- Axel Rosell
- Center for Hematology and Regenerative Medicine (HERM), NEO, Department of Medicine, Huddinge, Karolinska Institutet, Stockholm, Sweden
- Department of Clinical Sciences, Danderyd Hospital, Karolinska Institutet, Stockholm, Sweden
- ME Hematology, Karolinska University Hospital, Stockholm, Sweden
| | - Cecilia Karlström
- Center for Hematology and Regenerative Medicine (HERM), NEO, Department of Medicine, Huddinge, Karolinska Institutet, Stockholm, Sweden
- ME Hematology, Karolinska University Hospital, Stockholm, Sweden
| | - Joakim S Dahlin
- Center for Molecular Medicine, Department of Medicine Solna, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
| | - Daryl Boey
- Center for Molecular Medicine, Department of Medicine Solna, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
| | - Monika Klimkowska
- Pathology Unit, Department of Laboratory Medicine, Karolinska Institutet, Stockholm, Sweden
- Department of Clinical Pathology and Cytology, Karolinska University Hospital, Stockholm, Sweden
| | - Kajsa Ax
- Center for Hematology and Regenerative Medicine (HERM), NEO, Department of Medicine, Huddinge, Karolinska Institutet, Stockholm, Sweden
| | - Charlotte Thålin
- Department of Clinical Sciences, Danderyd Hospital, Karolinska Institutet, Stockholm, Sweden
| | - Johanna Ungerstedt
- Center for Hematology and Regenerative Medicine (HERM), NEO, Department of Medicine, Huddinge, Karolinska Institutet, Stockholm, Sweden
- ME Hematology, Karolinska University Hospital, Stockholm, Sweden
| |
Collapse
|
13
|
Zhu W, Fan C, Dong S, Li X, Chen H, Zhou W. Neutrophil extracellular traps regulating tumorimmunity in hepatocellular carcinoma. Front Immunol 2023; 14:1253964. [PMID: 38173719 PMCID: PMC10764195 DOI: 10.3389/fimmu.2023.1253964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Accepted: 11/23/2023] [Indexed: 01/05/2024] Open
Abstract
As a component of the innate immune system, there is emerging evidence to suggest that neutrophils may play a critical role in the initiation and progression of hepatocellular carcinoma (HCC). Neutrophil extracellular traps (NETs) are web-like chromatin structures that protrude from the membranes during neutrophil activation. Recent research has shown that NETs, which are at the forefront of the renewed interest in neutrophil studies, are increasingly intertwined with HCC. By exploring the mechanisms of NETs in HCC, we aim to improve our understanding of the role of NETs and gain deeper insights into neutrophil biology. Therefore, this article provides a summary of key findings and discusses the emerging field of NETs in HCC.
Collapse
Affiliation(s)
- Weixiong Zhu
- The Second Clinical Medical College, Lanzhou University, Lanzhou, China
- Department of General Surgery, The Second Hospital of Lanzhou University, Lanzhou, China
| | - Chuanlei Fan
- The First Clinical Medical College, Lanzhou University, Lanzhou, China
| | - Shi Dong
- The Second Clinical Medical College, Lanzhou University, Lanzhou, China
- Department of General Surgery, The Second Hospital of Lanzhou University, Lanzhou, China
| | - Xin Li
- The Second Clinical Medical College, Lanzhou University, Lanzhou, China
- The First Clinical Medical College, Lanzhou University, Lanzhou, China
| | - Haofei Chen
- The Second Clinical Medical College, Lanzhou University, Lanzhou, China
- Department of General Surgery, The Second Hospital of Lanzhou University, Lanzhou, China
| | - Wence Zhou
- The Second Clinical Medical College, Lanzhou University, Lanzhou, China
- Department of General Surgery, The Second Hospital of Lanzhou University, Lanzhou, China
| |
Collapse
|
14
|
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.
Collapse
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
| |
Collapse
|
15
|
Kubota T. An Emerging Role for Anti-DNA Antibodies in Systemic Lupus Erythematosus. Int J Mol Sci 2023; 24:16499. [PMID: 38003689 PMCID: PMC10671047 DOI: 10.3390/ijms242216499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 11/15/2023] [Accepted: 11/17/2023] [Indexed: 11/26/2023] Open
Abstract
Anti-DNA antibodies are hallmark autoantibodies produced in systemic lupus erythematosus (SLE), but their pathogenetic role is not fully understood. Accumulating evidence suggests that some anti-DNA antibodies enter different types of live cells and affect the pathophysiology of SLE by stimulating or impairing these cells. Circulating neutrophils in SLE are activated by a type I interferon or other stimuli and are primed to release neutrophil extracellular traps (NETs) on additional stimulation. Anti-DNA antibodies are also involved in this process and may induce NET release. Thereafter, they bind and protect extracellular DNA in the NETs from digestion by nucleases, resulting in increased NET immunogenicity. This review discusses the pathogenetic role of anti-DNA antibodies in SLE, mainly focusing on recent progress in the two research fields concerning antibody penetration into live cells and NETosis.
Collapse
Affiliation(s)
- Tetsuo Kubota
- Department of Medical Technology, Tsukuba International University, Tsuchiura 300-0051, Ibaraki, Japan
| |
Collapse
|
16
|
Drab D, Santocki M, Opydo M, Kolaczkowska E. Impact of endogenous and exogenous nitrogen species on macrophage extracellular trap (MET) formation by bone marrow-derived macrophages. Cell Tissue Res 2023; 394:361-377. [PMID: 37789240 PMCID: PMC10638184 DOI: 10.1007/s00441-023-03832-z] [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: 12/12/2022] [Accepted: 09/26/2023] [Indexed: 10/05/2023]
Abstract
Macrophage extracellular traps (METs) represent a novel defense mechanism in the antimicrobial arsenal of macrophages. However, mechanisms of MET formation are still poorly understood and this is at least partially due to the lack of reliable and reproducible models. Thus, we aimed at establishing a protocol of MET induction by bone marrow-derived macrophages (BMDMs) obtained from cryopreserved and then thawed bone marrow (BM) mouse cells. We report that BMDMs obtained in this way were morphologically (F4/80+) and functionally (expression of inducible nitric oxide (NO) synthase and NO production) differentiated and responded to various stimuli of bacterial (lipopolysaccharide, LPS), fungal (zymosan) and chemical (PMA) origin. Importantly, BMDMs were successfully casting METs composed of extracellular DNA (extDNA) serving as their backbone to which proteins such as H2A.X histones and matrix metalloproteinase 9 (MMP-9) were attached. In rendered 3D structure of METs, extDNA and protein components were embedded in each other. Since studies had shown the involvement of oxygen species in MET release, we aimed at studying if reactive nitrogen species (RNS) such as NO are also involved in MET formation. By application of NOS inhibitor - L-NAME or nitric oxide donor (SNAP), we studied the involvement of endogenous and exogenous RNS in traps release. We demonstrated that L-NAME halted MET formation upon stimulation with LPS while SNAP alone induced it. The latter phenomenon was further enhanced in the presence of LPS. Taken together, our findings demonstrate that BMDMs obtained from cryopreserved BM cells are capable of forming METs in an RNS-dependent manner.
Collapse
Affiliation(s)
- Dominika Drab
- Laboratory of Experimental Hematology, Institute of Zoology and Biomedical Research, Jagiellonian University, 30-387, Krakow, Poland
- Doctoral School of Exact and Natural Sciences, Jagiellonian University, Krakow, Poland
| | - Michal Santocki
- Laboratory of Experimental Hematology, Institute of Zoology and Biomedical Research, Jagiellonian University, 30-387, Krakow, Poland
| | - Malgorzata Opydo
- Laboratory of Experimental Hematology, Institute of Zoology and Biomedical Research, Jagiellonian University, 30-387, Krakow, Poland
| | - Elzbieta Kolaczkowska
- Laboratory of Experimental Hematology, Institute of Zoology and Biomedical Research, Jagiellonian University, 30-387, Krakow, Poland.
| |
Collapse
|
17
|
Gigon L, Fettrelet T, Miholic M, McLeish KR, Yousefi S, Stojkov D, Simon HU. Syntaxin-4 and SNAP23 are involved in neutrophil degranulation, but not in the release of mitochondrial DNA during NET formation. Front Immunol 2023; 14:1272699. [PMID: 37885878 PMCID: PMC10599146 DOI: 10.3389/fimmu.2023.1272699] [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: 08/04/2023] [Accepted: 09/26/2023] [Indexed: 10/28/2023] Open
Abstract
Neutrophils are a specialized subset of white blood cells, which have the ability to store pre-formed mediators in their cytoplasmic granules. Neutrophils are well-known effector cells involved in host protection against pathogens through diverse mechanisms such as phagocytosis, degranulation, extracellular traps, and oxidative burst. In this study, we provide evidence highlighting the significance of the SNARE proteins syntaxin-4 and synaptosomal-associated protein (SNAP) 23 in the release of azurophilic granules, specific granules, and the production of reactive oxygen species in human neutrophils. In contrast, the specific blockade of either syntaxin-4 or SNAP23 did not prevent the release of mitochondrial dsDNA in the process of neutrophil extracellular trap (NET) formation. These findings imply that degranulation and the release of mitochondrial dsDNA involve at least partially distinct molecular pathways in neutrophils.
Collapse
Affiliation(s)
- Lea Gigon
- Institute of Pharmacology, University of Bern, Bern, Switzerland
| | | | - Marta Miholic
- Institute of Pharmacology, University of Bern, Bern, Switzerland
- Faculty of Pharmacy, University of Ljubljana, Ljubljana, Slovenia
| | - Kenneth R. McLeish
- Department of Medicine, University of Louisville School of Medicine, Louisville, KY, United States
| | - Shida Yousefi
- Institute of Pharmacology, University of Bern, Bern, Switzerland
| | - Darko Stojkov
- Institute of Pharmacology, University of Bern, Bern, Switzerland
| | - Hans-Uwe Simon
- Institute of Pharmacology, University of Bern, Bern, Switzerland
- Institute of Biochemistry, Brandenburg Medical School, Neuruppin, Germany
| |
Collapse
|
18
|
Tada H, Nishioka T, Ishiyama R, Song LT, Onoue S, Kawahara K, Nemoto E, Matsushita K, Sugawara S. Macrophage migration inhibitory factor-mediated mast cell extracellular traps induce inflammatory responses upon Fusobacterium nucleatum infection. Biochem Biophys Res Commun 2023; 674:90-96. [PMID: 37413710 DOI: 10.1016/j.bbrc.2023.06.060] [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: 06/07/2023] [Accepted: 06/17/2023] [Indexed: 07/08/2023]
Abstract
Mast cell extracellular traps (MCETs) released by mast cells contribute to host defense. In this study, we investigated the effects of MCETs released from mast cells after infection with a periodontal pathogen Fusobacterium nucleatum. We found that F. nucleatum induced MCET release from mast cells, and that MCETs expressed macrophage migration inhibitory factor (MIF). Notably, MIF bound to MCETs induced proinflammatory cytokine production by monocytic cells. These findings suggest that MIF expressed on MCETs, released from mast cells upon infection with F. nucleatum, promotes inflammatory responses that may be associated with the pathogenesis of periodontal disease.
Collapse
Affiliation(s)
- Hiroyuki Tada
- Division of Oral Immunology, Tohoku University Graduate School of Dentistry, Sendai 980-8575, Japan.
| | - Takashi Nishioka
- Liaison Center for Innovative Dentistry, Division of Advanced Education Development, Tohoku University Graduate School of Dentistry, Sendai 980-8575, Japan; Oral and Maxillofacial Radiology, Tohoku University Hospital, Sendai 980-8575, Japan
| | - Rina Ishiyama
- Division of Oral Immunology, Tohoku University Graduate School of Dentistry, Sendai 980-8575, Japan
| | - Li-Ting Song
- Division of Oral Immunology, Tohoku University Graduate School of Dentistry, Sendai 980-8575, Japan; Hospital of Stomatology, School of Dentistry, Tianjin Medical University, Tianjin 300070, China
| | - Sakura Onoue
- Department of Biosciences, College of Science and Engineering, Kanto Gakuin University, Yokohama 236-8501, Japan
| | - Kazuyoshi Kawahara
- Department of Biosciences, College of Science and Engineering, Kanto Gakuin University, Yokohama 236-8501, Japan
| | - Eiji Nemoto
- Division of Periodontology and Endodontology, Tohoku University Graduate School of Dentistry, Sendai 980-8575, Japan
| | - Kenji Matsushita
- Department of Oral Disease Research, National Center for Geriatrics and Gerontology, Obu 474-8511, Japan
| | - Shunji Sugawara
- Division of Oral Immunology, Tohoku University Graduate School of Dentistry, Sendai 980-8575, Japan
| |
Collapse
|
19
|
Vorobjeva NV, Chelombitko MA, Sud’ina GF, Zinovkin RA, Chernyak BV. Role of Mitochondria in the Regulation of Effector Functions of Granulocytes. Cells 2023; 12:2210. [PMID: 37759432 PMCID: PMC10526294 DOI: 10.3390/cells12182210] [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: 07/30/2023] [Revised: 09/03/2023] [Accepted: 09/04/2023] [Indexed: 09/29/2023] Open
Abstract
Granulocytes (neutrophils, eosinophils, and basophils) are the most abundant circulating cells in the innate immune system. Circulating granulocytes, primarily neutrophils, can cross the endothelial barrier and activate various effector mechanisms to combat invasive pathogens. Eosinophils and basophils also play an important role in allergic reactions and antiparasitic defense. Granulocytes also regulate the immune response, wound healing, and tissue repair by releasing of various cytokines and lipid mediators. The effector mechanisms of granulocytes include the production of reactive oxygen species (ROS), degranulation, phagocytosis, and the formation of DNA-containing extracellular traps. Although all granulocytes are primarily glycolytic and have only a small number of mitochondria, a growing body of evidence suggests that mitochondria are involved in all effector functions as well as in the production of cytokines and lipid mediators and in apoptosis. It has been shown that the production of mitochondrial ROS controls signaling pathways that mediate the activation of granulocytes by various stimuli. In this review, we will briefly discuss the data on the role of mitochondria in the regulation of effector and other functions of granulocytes.
Collapse
Affiliation(s)
- Nina V. Vorobjeva
- Department Immunology, Biology Faculty, Lomonosov Moscow State University, 119234 Moscow, Russia;
| | - Maria A. Chelombitko
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119992 Moscow, Russia; (M.A.C.); (R.A.Z.)
- The Russian Clinical Research Center for Gerontology, Ministry of Healthcare of the Russian Federation, Pirogov Russian National Research Medical University, 129226 Moscow, Russia
| | - Galina F. Sud’ina
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119992 Moscow, Russia; (M.A.C.); (R.A.Z.)
| | - Roman A. Zinovkin
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119992 Moscow, Russia; (M.A.C.); (R.A.Z.)
- The Russian Clinical Research Center for Gerontology, Ministry of Healthcare of the Russian Federation, Pirogov Russian National Research Medical University, 129226 Moscow, Russia
| | - Boris V. Chernyak
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119992 Moscow, Russia; (M.A.C.); (R.A.Z.)
| |
Collapse
|
20
|
Liu Y, Liang J, Li JW, Xing LH, Li FX, Wang N, Wu YJ, Ma YZ, Xing ZR, Jiang X, Zhang XY, Lei ZX, Wang X, Yu SX. Phagocyte extracellular traps formation contributes to host defense against Clostridium perfringens infection. Cytokine 2023; 169:156276. [PMID: 37339556 DOI: 10.1016/j.cyto.2023.156276] [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: 05/03/2022] [Revised: 06/10/2023] [Accepted: 06/12/2023] [Indexed: 06/22/2023]
Abstract
Clostridium perfringens (C. perfringens) is an important Gram-positive anaerobic spore-forming pathogen that provokes life-threatening gas gangrene and acute enterotoxaemia, although it colonizes as a component of the symbiotic bacteria in humans and animals. However, the mechanisms by which C. perfringens is cleared from the host remains poorly understood, thereby impeding the development of novel strategies for control this infection. Here, we uncover a beneficial effect of extracellular traps (ETs) formation on bacterial killing and clearance by phagocytes. C. perfringens strain ATCC13124, and wild-type isolates CP1 and CP3 markedly trigger ETs formation in macrophages and neutrophils. As expected, visualization of DNA decorated with histone, myeloperoxidase (MPO) and neutrophils elastase (NE) in C. perfringens-triggered classical ETs structures. Notably, the bacteria-induced ETs formation is an ERK1/2-, P38 MAPK-, store-operated calcium entry (SOCE)-, NADPH oxidase-, histone-, NE-, and MPO-dependent process, and is independent of LDH activity. Meanwhile, the defect of bactericidal activity is mediated by impairing ETs formation in phagocytes. Moreover, In vivo studies indicated that degradation of ETs by DNase I administration leads to a defect in the protection against experimental gas gangrene, with higher mortality rates, exacerbated tissue damage, and more bacterial colonization. Together, these results suggest that phagocyte ETs formation is essential for the host defense against C. perfringens infection.
Collapse
Affiliation(s)
- Yang Liu
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, College of Life Sciences, Inner Mongolia University, Hohhot 010070, China; Animal Husbandry Institute, Agriculture and Animal Husbandry Academy of Inner Mongolia, Hohhot 010031, China
| | - Jing Liang
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, College of Life Sciences, Inner Mongolia University, Hohhot 010070, China
| | - Jian-Wei Li
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, College of Life Sciences, Inner Mongolia University, Hohhot 010070, China
| | - Li-Hua Xing
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, College of Life Sciences, Inner Mongolia University, Hohhot 010070, China
| | - Fen-Xin Li
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, College of Life Sciences, Inner Mongolia University, Hohhot 010070, China
| | - Na Wang
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, College of Life Sciences, Inner Mongolia University, Hohhot 010070, China
| | - Yu-Jing Wu
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, College of Life Sciences, Inner Mongolia University, Hohhot 010070, China
| | - Yu-Ze Ma
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, College of Life Sciences, Inner Mongolia University, Hohhot 010070, China
| | - Zhao-Rui Xing
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, College of Life Sciences, Inner Mongolia University, Hohhot 010070, China
| | - Xue Jiang
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, College of Life Sciences, Inner Mongolia University, Hohhot 010070, China
| | - Xin-Yue Zhang
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, College of Life Sciences, Inner Mongolia University, Hohhot 010070, China
| | - Zheng-Xuan Lei
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, College of Life Sciences, Inner Mongolia University, Hohhot 010070, China
| | - Xiao Wang
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, College of Life Sciences, Inner Mongolia University, Hohhot 010070, China.
| | - Shui-Xing Yu
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, College of Life Sciences, Inner Mongolia University, Hohhot 010070, China.
| |
Collapse
|
21
|
Dileepan KN, Raveendran VV, Sharma R, Abraham H, Barua R, Singh V, Sharma R, Sharma M. Mast cell-mediated immune regulation in health and disease. Front Med (Lausanne) 2023; 10:1213320. [PMID: 37663654 PMCID: PMC10470157 DOI: 10.3389/fmed.2023.1213320] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Accepted: 07/17/2023] [Indexed: 09/05/2023] Open
Abstract
Mast cells are important components of the immune system, and they perform pro-inflammatory as well as anti-inflammatory roles in the complex process of immune regulation in health and disease. Because of their strategic perivascular localization, sensitivity and adaptability to the microenvironment, and ability to release a variety of preformed and newly synthesized effector molecules, mast cells perform unique functions in almost all organs. Additionally, Mast cells express a wide range of surface and cytoplasmic receptors which enable them to respond to a variety of cytokines, chemicals, and pathogens. The mast cell's role as a cellular interface between external and internal environments as well as between vasculature and tissues is critical for protection and repair. Mast cell interactions with different immune and nonimmune cells through secreted inflammatory mediators may also turn in favor of disease promoting agents. First and forefront, mast cells are well recognized for their multifaceted functions in allergic diseases. Reciprocal communication between mast cells and endothelial cells in the presence of bacterial toxins in chronic/sub-clinical infections induce persistent vascular inflammation. We have shown that mast cell proteases and histamine induce endothelial inflammatory responses that are synergistically amplified by bacterial toxins. Mast cells have been shown to exacerbate vascular changes in normal states as well as in chronic or subclinical infections, particularly among cigarette smokers. Furthermore, a potential role of mast cells in SARS-CoV-2-induced dysfunction of the capillary-alveolar interface adds to the growing understanding of mast cells in viral infections. The interaction between mast cells and microglial cells in the brain further highlights their significance in neuroinflammation. This review highlights the significant role of mast cells as the interface that acts as sensor and early responder through interactions with cells in systemic organs and the nervous system.
Collapse
Affiliation(s)
- Kottarappat N. Dileepan
- Division of Allergy, Clinical Immunology and Rheumatology, Department of Medicine, The University of Kansas Medical Center, Kansas City, KS, United States
| | - Vineesh V. Raveendran
- Division of Allergy, Clinical Immunology and Rheumatology, Department of Medicine, The University of Kansas Medical Center, Kansas City, KS, United States
| | - Rishi Sharma
- Department of Medicine, School of Medicine, University of Missouri, Kansas City, MO, United States
| | - Harita Abraham
- Division of Allergy, Clinical Immunology and Rheumatology, Department of Medicine, The University of Kansas Medical Center, Kansas City, KS, United States
| | - Rajat Barua
- Cardiology Section, Kansas City Veterans Affairs Medical Center, Kansas City, MO, United States
| | - Vikas Singh
- Neurology Section, Kansas City Veterans Affairs Medical Center, Kansas City, MO, United States
| | - Ram Sharma
- Research and Development Service, Kansas City Veterans Affairs Medical Center, Kansas City, MO, United States
| | - Mukut Sharma
- Research and Development Service, Kansas City Veterans Affairs Medical Center, Kansas City, MO, United States
- Midwest Veterans’ Biomedical Research Foundation (MVBRF), Kansas City VA Medical Center, Kansas, MO, United States
| |
Collapse
|
22
|
Carmona-Rocha E, Puig L. The biological basis of disease recurrence in psoriasis. Ital J Dermatol Venerol 2023; 158:279-291. [PMID: 37404193 DOI: 10.23736/s2784-8671.23.07583-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/06/2023]
Abstract
Despite the amazing advances produced in our understanding of the pathogenesis of psoriasis, which have led to a therapeutic revolution, our knowledge of the mechanisms of relapse and elicitation of lesions is just starting to unravel. This narrative review tours the different cell types and mechanisms involved in the priming, maintenance, and relapse of psoriasis vulgaris. Our discussion includes dendritic cells, T cells, tissue resident memory cells and mast cells, with a foray into the epigenetic mechanisms of inflammatory memory in keratinocytes. Increasing knowledge is providing a glimpse of a potential therapeutic window of opportunity in psoriasis, providing long term remission and eventual modification of the natural history of the disease.
Collapse
Affiliation(s)
- Elena Carmona-Rocha
- Department of Dermatology, Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Lluís Puig
- Department of Dermatology, Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain -
| |
Collapse
|
23
|
Melbouci D, Haidar Ahmad A, Decker P. Neutrophil extracellular traps (NET): not only antimicrobial but also modulators of innate and adaptive immunities in inflammatory autoimmune diseases. RMD Open 2023; 9:e003104. [PMID: 37562857 PMCID: PMC10423839 DOI: 10.1136/rmdopen-2023-003104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Accepted: 05/14/2023] [Indexed: 08/12/2023] Open
Abstract
Polymorphonuclear neutrophils (PMN) represent one of the first lines of defence against invading pathogens and are the most abundant leucocytes in the circulation. Generally described as pro-inflammatory cells, recent data suggest that PMN also have immunomodulatory capacities. In response to certain stimuli, activated PMN expel neutrophil extracellular traps (NET), structures made of DNA and associated proteins. Although originally described as an innate immune mechanism fighting bacterial infection, NET formation (or probably rather an excess of NET together with impaired clearance of NET) may be deleterious. Indeed, NET have been implicated in the development of several inflammatory and autoimmune diseases as rheumatoid arthritis or systemic lupus erythematosus, as well as fibrosis or cancer. They have been suggested as a source of (neo)autoantigens or regulatory proteins like proteases or to act as a physical barrier. Different mechanisms of NET formation have been described, leading to PMN death or not, depending on the stimulus. Interestingly, NET may be both pro-inflammatory and anti-inflammatory and this probably partly depends on the mechanism, and thus the stimuli, triggering NET formation. Within this review, we will describe the pro-inflammatory and anti-inflammatory activities of NET and especially how NET may modulate immune responses.
Collapse
Affiliation(s)
- Dyhia Melbouci
- Inserm UMR 1125, Li2P, Université Sorbonne Paris Nord-Campus de Bobigny, Bobigny, Île-de-France, France
| | - Ahmad Haidar Ahmad
- Inserm UMR 1125, Li2P, Université Sorbonne Paris Nord-Campus de Bobigny, Bobigny, Île-de-France, France
| | - Patrice Decker
- Inserm UMR 1125, Li2P, Université Sorbonne Paris Nord-Campus de Bobigny, Bobigny, Île-de-France, France
| |
Collapse
|
24
|
Richards CM, McRae SA, Ranger AL, Klegeris A. Extracellular histones as damage-associated molecular patterns in neuroinflammatory responses. Rev Neurosci 2023; 34:533-558. [PMID: 36368030 DOI: 10.1515/revneuro-2022-0091] [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: 07/26/2022] [Accepted: 10/18/2022] [Indexed: 07/20/2023]
Abstract
The four core histones H2A, H2B, H3, H4, and the linker histone H1 primarily bind DNA and regulate gene expression within the nucleus. Evidence collected mainly from the peripheral tissues illustrates that histones can be released into the extracellular space by activated or damaged cells. In this article, we first summarize the innate immune-modulatory properties of extracellular histones and histone-containing complexes, such as nucleosomes, and neutrophil extracellular traps (NETs), described in peripheral tissues. There, histones act as damage-associated molecular patterns (DAMPs), which are a class of endogenous molecules that trigger immune responses by interacting directly with the cellular membranes and activating pattern recognition receptors (PRRs), such as toll-like receptors (TLR) 2, 4, 9 and the receptor for advanced glycation end-products (RAGE). We then focus on the available evidence implicating extracellular histones as DAMPs of the central nervous system (CNS). It is becoming evident that histones are present in the brain parenchyma after crossing the blood-brain barrier (BBB) or being released by several types of brain cells, including neurons, microglia, and astrocytes. However, studies on the DAMP-like effects of histones on CNS cells are limited. For example, TLR4 is the only known molecular target of CNS extracellular histones and their interactions with other PRRs expressed by brain cells have not been observed. Nevertheless, extracellular histones are implicated in the pathogenesis of a variety of neurological disorders characterized by sterile neuroinflammation; therefore, detailed studies on the role these proteins and their complexes play in these pathologies could identify novel therapeutic targets.
Collapse
Affiliation(s)
- Christy M Richards
- Department of Biology, University of British Columbia Okanagan Campus, Kelowna V1V 1V7, BC, Canada
| | - Seamus A McRae
- Department of Biology, University of British Columbia Okanagan Campus, Kelowna V1V 1V7, BC, Canada
| | - Athena L Ranger
- Department of Biology, University of British Columbia Okanagan Campus, Kelowna V1V 1V7, BC, Canada
| | - Andis Klegeris
- Department of Biology, University of British Columbia Okanagan Campus, Kelowna V1V 1V7, BC, Canada
| |
Collapse
|
25
|
Mihele DM, Nistor PA, Bruma G, Mitran CI, Mitran MI, Condrat CE, Tovaru M, Tampa M, Georgescu SR. Mast Cell Activation Syndrome Update-A Dermatological Perspective. J Pers Med 2023; 13:1116. [PMID: 37511729 PMCID: PMC10381535 DOI: 10.3390/jpm13071116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 06/26/2023] [Accepted: 07/05/2023] [Indexed: 07/30/2023] Open
Abstract
Mast cells (MCs) are infamous for their role in potentially fatal anaphylaxis reactions. In the last two decades, a more complex picture has emerged, as it has become obvious that MCs are much more than just IgE effectors of anaphylaxis. MCs are defenders against a host of infectious and toxic aggressions (their interactions with other components of the immune system are not yet fully understood) and after the insult has ended, MCs continue to play a role in inflammation regulation and tissue repair. Unfortunately, MC involvement in pathology is also significant. Apart from their role in allergies, MCs can proliferate clonally to produce systemic mastocytosis. They have also been implicated in excessive fibrosis, keloid scaring, graft rejection and chronic inflammation, especially at the level of the skin and gut. In recent years, the term MC activation syndrome (MCAS) was proposed to account for symptoms caused by MC activation, and clear diagnostic criteria have been defined. However, not all authors agree with these criteria, as some find them too restrictive, potentially leaving much of the MC-related pathology unaccounted for. Here, we review the current knowledge on the physiological and pathological roles of MCs, with a dermatological emphasis, and discuss the MCAS classification.
Collapse
Affiliation(s)
- Dana Mihaela Mihele
- Dermatology Department, Carol Davila University of Medicine and Pharmacy, 8 Eroii Sanitari Blvd, 050474 Bucharest, Romania
- Dermatology Department, Victor Babes Clinical Hospital of Infectious and Tropical Diseases, 030303 Bucharest, Romania
| | - Paul Andrei Nistor
- Internal Medicine Department, Emergency University Hospital Bucharest, 169 Independence Blvd, 050098 Bucharest, Romania
| | - Gabriela Bruma
- Dermatology Department, Victor Babes Clinical Hospital of Infectious and Tropical Diseases, 030303 Bucharest, Romania
| | - Cristina Iulia Mitran
- Microbiology Department, Carol Davila University of Medicine and Pharmacy, 8 Eroii Sanitari Blvd, 050474 Bucharest, Romania
| | - Madalina Irina Mitran
- Microbiology Department, Carol Davila University of Medicine and Pharmacy, 8 Eroii Sanitari Blvd, 050474 Bucharest, Romania
| | - Carmen Elena Condrat
- Fetal Medicine Excellence Research Center, Alessandrescu-Rusescu National Institute for Mother and Child Health, 020395 Bucharest, Romania
- Department of Obstetrics and Gynecology, Carol Davila University of Medicine and Pharmacy, 8 Eroii Sanitari Blvd, 050474 Bucharest, Romania
| | - Mihaela Tovaru
- Dermatology Department, Carol Davila University of Medicine and Pharmacy, 8 Eroii Sanitari Blvd, 050474 Bucharest, Romania
- Dermatology Department, Victor Babes Clinical Hospital of Infectious and Tropical Diseases, 030303 Bucharest, Romania
| | - Mircea Tampa
- Dermatology Department, Carol Davila University of Medicine and Pharmacy, 8 Eroii Sanitari Blvd, 050474 Bucharest, Romania
- Dermatology Department, Victor Babes Clinical Hospital of Infectious and Tropical Diseases, 030303 Bucharest, Romania
| | - Simona Roxana Georgescu
- Dermatology Department, Carol Davila University of Medicine and Pharmacy, 8 Eroii Sanitari Blvd, 050474 Bucharest, Romania
- Dermatology Department, Victor Babes Clinical Hospital of Infectious and Tropical Diseases, 030303 Bucharest, Romania
| |
Collapse
|
26
|
Lyu Z, Yang P, Lei J, Zhao J. Biological Function of Antimicrobial Peptides on Suppressing Pathogens and Improving Host Immunity. Antibiotics (Basel) 2023; 12:1037. [PMID: 37370356 DOI: 10.3390/antibiotics12061037] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 06/04/2023] [Accepted: 06/07/2023] [Indexed: 06/29/2023] Open
Abstract
The emergence of drug-resistant genes and concerns about food safety caused by the overuse of antibiotics are becoming increasingly prominent. There is an urgent need for effective alternatives to antibiotics in the fields of livestock production and human medicine. Antimicrobial peptides can effectively replace antibiotics to kill pathogens and enhance the immune functions of the host, and pathogens cannot easily produce genes that are resistant to them. The ability of antimicrobial peptides (AMPs) to kill pathogens is associated with their structure and physicochemical properties, such as their conformation, electrical charges, hydrophilicity, and hydrophobicity. AMPs regulate the activity of immunological cells and stimulate the secretion of inflammatory cytokines via the activation of the NF-κB and MAPK signaling pathways. However, there are still some limitations to the application of AMPs in the fields of livestock production and human medicine, including a restricted source base, high costs of purification and expression, and the instability of the intestines of animals and humans. This review summarizes the information on AMPs as effective antibiotic substitutes to improve the immunological functions of the host through suppressing pathogens and regulating inflammatory responses. Potential challenges for the commercial application of AMPs in animal husbandry and human medicine are discussed.
Collapse
Affiliation(s)
- Zhiqian Lyu
- Guangdong Haid Group Co., Ltd., Guangzhou 511400, China
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Pan Yang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Jian Lei
- Guangdong Haid Group Co., Ltd., Guangzhou 511400, China
- Qingyuan Haibei BIO-TECH Co., Ltd., Qingyuan 511853, China
| | - Jinbiao Zhao
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| |
Collapse
|
27
|
Liu Y, Dai D, Abbasi M, Mereuta OM, Gamb SI, Kadirvel R, Kallmes DF, Brinjikji W. An in vitro model for Extracellular DNA Traps (ETs)-rich Human Thrombus Analogs. J Neurointerv Surg 2023; 15:589-593. [PMID: 35483911 PMCID: PMC11094997 DOI: 10.1136/neurintsurg-2022-018790] [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: 02/08/2022] [Accepted: 04/16/2022] [Indexed: 11/03/2022]
Abstract
BACKGROUND Extracellular DNA traps (ETs) have important implications in both thrombosis and thrombolysis. Thus, developing benchtop thrombus analogs that recapitulate clinical ETs is potentially of great value for preclinical development and testing of thrombolytic agents and thrombectomy devices. In this study, we aimed to develop ETs-rich thrombus analogs for preclinical testing. METHODS Red blood cell (RBC)-rich, fibrin-rich, and platelet-rich thrombus analogs were created using human whole blood, platelet-poor plasma, and platelet-rich plasma obtained from the blood bank following institutional approval. Peripheral blood mononuclear cells (9.9×106 cells/mL) isolated from human whole blood and lipopolysaccharide (1 µg/mL) were added to induce ETs. Histochemical, immunohistochemistry and immunofluorescence were used to identify thrombus components and ETs. Scanning electronic microscopy was used to investigate the ultrastructure of the thrombus analogs. The thrombus compositions, morphologic features of ETs and citrullinated histone H3 (H3Cit) expression were compared with those of thrombi retrieved from patients by thrombectomy. RESULTS ETs-rich thrombus analogs were more compacted th-an the ETs-poor thrombus analogs. ETs were identified in both ETs-rich thrombus analogs and patient thrombi showing morphologic features including nuclear lobulation, nuclear swelling, diffused chromatin within cytoplasm, DNA/chromatin extending intracellularly and extracellularly, and extracellular chromatin patches and bundles. In the ETs-poor thrombus analogs, ETs were not observed and H3Cit expression was absent to minimal. The compositions and H3Cit expression in the ETs-rich thrombus analogs fell in the range of patient thrombi. CONCLUSIONS ETs-rich thrombus analogs can be consistently created in vitro and may benefit the preclinical development and testing of new thrombolytic agents and thrombectomy devices.
Collapse
Affiliation(s)
- Yang Liu
- Radiology, Mayo Clinic, Rochester, Minnesota, USA
- Global Institute of Future Technology, Shanghai Jiao Tong University, Shanghai, China
| | - Daying Dai
- Radiology, Mayo Clinic, Rochester, Minnesota, USA
| | - Mehdi Abbasi
- Radiology, Mayo Clinic, Rochester, Minnesota, USA
| | | | - Scott I Gamb
- Electron Microscopy Core Facility, Mayo Clinic, Rochester, Minnesota, USA
| | | | | | | |
Collapse
|
28
|
Frolova AS, Chepikova OE, Deviataikina AS, Solonkina AD, Zamyatnin AA. New Perspectives on the Role of Nuclear Proteases in Cell Death Pathways. BIOLOGY 2023; 12:797. [PMID: 37372081 DOI: 10.3390/biology12060797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 05/26/2023] [Accepted: 05/29/2023] [Indexed: 06/29/2023]
Abstract
Multiple factors can trigger cell death via various pathways, and nuclear proteases have emerged as essential regulators of these processes. While certain nuclear proteases have been extensively studied and their mechanisms of action are well understood, others remain poorly characterized. Regulation of nuclear protease activity is a promising therapeutic strategy that could selectively induce favorable cell death pathways in specific tissues or organs. Thus, by understanding the roles of newly discovered or predicted nuclear proteases in cell death processes, we can identify new pharmacological targets for improving therapeutic outcomes. In this article, we delved into the role of nuclear proteases in several types of cell death and explore potential avenues for future research and therapeutic development.
Collapse
Affiliation(s)
- Anastasia S Frolova
- Institute of Molecular Medicine, Sechenov First Moscow State Medical University, 119991 Moscow, Russia
- Scientific Center for Genetics and Life Sciences, Division of Biotechnology, Sirius University of Science and Technology, 354340 Sochi, Russia
| | - Olga E Chepikova
- Institute of Molecular Medicine, Sechenov First Moscow State Medical University, 119991 Moscow, Russia
- Scientific Center for Genetics and Life Sciences, Division of Biotechnology, Sirius University of Science and Technology, 354340 Sochi, Russia
| | - Anna S Deviataikina
- Institute of Biodesign and Complex Systems Modeling, Sechenov First Moscow State Medical University, 119435 Moscow, Russia
| | - Alena D Solonkina
- Institute of Biodesign and Complex Systems Modeling, Sechenov First Moscow State Medical University, 119435 Moscow, Russia
| | - Andrey A Zamyatnin
- Institute of Molecular Medicine, Sechenov First Moscow State Medical University, 119991 Moscow, Russia
- Scientific Center for Genetics and Life Sciences, Division of Biotechnology, Sirius University of Science and Technology, 354340 Sochi, Russia
- Faculty of Bioengineering and Bioinformatics, Lomonosov Moscow State University, 119992 Moscow, Russia
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119992 Moscow, Russia
| |
Collapse
|
29
|
Rinaldi G, de Haro NÁ, Fernando AJ, Desbois AP, Robb CT, Rossi AG. Fish Erythrocyte Extracellular Traps (FEETs) are an evolutionarily conserved cellular process triggered by different stimuli. FISH & SHELLFISH IMMUNOLOGY 2023; 136:108638. [PMID: 36842638 DOI: 10.1016/j.fsi.2023.108638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 09/16/2022] [Accepted: 02/22/2023] [Indexed: 06/18/2023]
Abstract
Fish erythrocytes remain nucleated, unlike mammalian erythrocytes that undergo enucleation during maturation. Besides oxygen transport, fish erythrocytes are capable of several immune defence processes and thus these cells are candidates for carrying out ETotic responses. ETosis is an evolutionarily conserved innate immune defence process found in both vertebrates and invertebrates, which involves the extrusion of DNA studded with antimicrobial effector proteins into the extracellular space that traps and kills microorganisms. In this present report, we demonstrate that erythrocytes from Danio rerio (zebrafish) produce ETotic-like responses when exposed to both chemical and physiological inducers of ETosis. Furthermore, erythrocytes from Salmo salar (Atlantic salmon) behaved in a similar way. We have termed these ET-like formations, as Fish Erythrocyte Extracellular Traps (FEETs). Several inducers of mammalian ETosis, such as the protein kinase C (PKC) activator phorbol 12-myristate 13-acetate (PMA) and the calcium ionophore ionomycin, induced FEETs. Moreover, we found that FEETs depend on the activation of PKC and generation of mitochondrial reactive oxygen species (mROS). This present report is the first demonstration that fish erythrocytes can exhibit ETotic-like responses, unveiling a previously unknown function, which sheds new light on the innate immune arsenal of these cells.
Collapse
Affiliation(s)
- Giulia Rinaldi
- Centre for Inflammation Research, Queen's Medical Research Institute, The University of Edinburgh, Edinburgh, EH16 4TJ, Scotland, UK
| | - Neila Álvarez de Haro
- Institute of Aquaculture, Faculty of Natural Sciences, University of Stirling, Stirling, FK9 4LA, Scotland, UK
| | - Anuruddika J Fernando
- Centre for Inflammation Research, Queen's Medical Research Institute, The University of Edinburgh, Edinburgh, EH16 4TJ, Scotland, UK
| | - Andrew P Desbois
- Institute of Aquaculture, Faculty of Natural Sciences, University of Stirling, Stirling, FK9 4LA, Scotland, UK
| | - Calum T Robb
- Centre for Inflammation Research, Queen's Medical Research Institute, The University of Edinburgh, Edinburgh, EH16 4TJ, Scotland, UK
| | - Adriano G Rossi
- Centre for Inflammation Research, Queen's Medical Research Institute, The University of Edinburgh, Edinburgh, EH16 4TJ, Scotland, UK.
| |
Collapse
|
30
|
Tutanov O, Shefer A, Tsentalovich Y, Tamkovich S. Comparative Analysis of Molecular Functions and Biological Role of Proteins from Cell-Free DNA-Protein Complexes Circulating in Plasma of Healthy Females and Breast Cancer Patients. Int J Mol Sci 2023; 24:ijms24087279. [PMID: 37108441 PMCID: PMC10138639 DOI: 10.3390/ijms24087279] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2023] [Revised: 04/05/2023] [Accepted: 04/12/2023] [Indexed: 04/29/2023] Open
Abstract
Cell-free DNA (cfDNA) circulates in the bloodstream packed in membrane-coated structures (such as apoptotic bodies) or bound to proteins. To identify proteins involved in the formation of deoxyribonucleoprotein complexes circulating in the blood, native complexes were isolated using affinity chromatography with immobilized polyclonal anti-histone antibodies from plasma of healthy females (HFs) and breast cancer patients (BCPs). It was found that the nucleoprotein complexes (NPCs) from HF plasma samples contained shorter DNA fragments (~180 bp) than BCP NPCs. However, the share of DNA in the NPCs from cfDNA in blood plasma in HFs and BCPs did not differ significantly, as well as the share of NPC protein from blood plasma total protein. Proteins were separated by SDS-PAGE and identified by MALDI-TOF mass spectrometry. Bioinformatic analysis showed that in the presence of a malignant tumor, the proportion of proteins involved in ion channels, protein binding, transport, and signal transduction increased in the composition of blood-circulating NPCs. Moreover, 58 (35%) proteins are differentially expressed in a number of malignant neoplasms in the NPCs of BCPs. Identified NPC proteins from BCP blood can be recommended for further testing as breast cancer diagnostic/prognostic biomarkers or as being useful in developing gene-targeted therapy approaches.
Collapse
Affiliation(s)
- Oleg Tutanov
- V. Zelman Institute for Medicine and Psychology, Novosibirsk State University, 630090 Novosibirsk, Russia
| | - Aleksei Shefer
- V. Zelman Institute for Medicine and Psychology, Novosibirsk State University, 630090 Novosibirsk, Russia
| | - Yuri Tsentalovich
- International Tomography Center, Siberian Branch of Russian Academy of Sciences, 630090 Novosibirsk, Russia
| | - Svetlana Tamkovich
- V. Zelman Institute for Medicine and Psychology, Novosibirsk State University, 630090 Novosibirsk, Russia
| |
Collapse
|
31
|
Castaño M, Tomás-Pérez S, González-Cantó E, Aghababyan C, Mascarós-Martínez A, Santonja N, Herreros-Pomares A, Oto J, Medina P, Götte M, Mc Cormack BA, Marí-Alexandre J, Gilabert-Estellés J. Neutrophil Extracellular Traps and Cancer: Trapping Our Attention with Their Involvement in Ovarian Cancer. Int J Mol Sci 2023; 24:ijms24065995. [PMID: 36983067 PMCID: PMC10056926 DOI: 10.3390/ijms24065995] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 03/17/2023] [Accepted: 03/20/2023] [Indexed: 03/30/2023] Open
Abstract
Neutrophils, the most abundant circulating leukocytes, play a well-known role in defense against pathogens through phagocytosis and degranulation. However, a new mechanism involving the release of neutrophil extracellular traps (NETs) composed of DNA, histones, calprotectin, myeloperoxidase, and elastase, among others, has been described. The so-called NETosis process can occur through three different mechanisms: suicidal, vital, and mitochondrial NETosis. Apart from their role in immune defense, neutrophils and NETs have been involved in physiopathological conditions, highlighting immunothrombosis and cancer. Notably, neutrophils can either promote or inhibit tumor growth in the tumor microenvironment depending on cytokine signaling and epigenetic modifications. Several neutrophils' pro-tumor strategies involving NETs have been documented, including pre-metastatic niche formation, increased survival, inhibition of the immune response, and resistance to oncologic therapies. In this review, we focus on ovarian cancer (OC), which remains the second most incidental but the most lethal gynecologic malignancy, partly due to the presence of metastasis, often omental, at diagnosis and the resistance to treatment. We deepen the state-of-the-art on the participation of NETs in OC metastasis establishment and progression and their involvement in resistance to chemo-, immuno-, and radiotherapies. Finally, we review the current literature on NETs in OC as diagnostic and/or prognostic markers, and their contribution to disease progression at early and advanced stages. The panoramic view provided in this article might pave the way for enhanced diagnostic and therapeutic strategies to improve the prognosis of cancer patients and, specifically, OC patients.
Collapse
Affiliation(s)
- María Castaño
- Haemostasis, Thrombosis, Arteriosclerosis and Vascular Biology Research Group, Medical Research Institute Hospital La Fe, 46026 Valencia, Spain
| | - Sarai Tomás-Pérez
- Research Laboratory in Biomarkers in Reproduction, Gynaecology, and Obstetrics, Research Foundation of the General University Hospital of Valencia, 46014 Valencia, Spain
| | - Eva González-Cantó
- Research Laboratory in Biomarkers in Reproduction, Gynaecology, and Obstetrics, Research Foundation of the General University Hospital of Valencia, 46014 Valencia, Spain
| | - Cristina Aghababyan
- Research Laboratory in Biomarkers in Reproduction, Gynaecology, and Obstetrics, Research Foundation of the General University Hospital of Valencia, 46014 Valencia, Spain
- Department of Obstetrics and Gynecology, General University Hospital of Valencia Consortium, 46014 Valencia, Spain
| | - Andrea Mascarós-Martínez
- Department of Pathology, General University Hospital of Valencia Consortium, 46014 Valencia, Spain
| | - Nuria Santonja
- Department of Pathology, General University Hospital of Valencia Consortium, 46014 Valencia, Spain
| | | | - Julia Oto
- Haemostasis, Thrombosis, Arteriosclerosis and Vascular Biology Research Group, Medical Research Institute Hospital La Fe, 46026 Valencia, Spain
- Department of Gynecology and Obstetrics, Münster University Hospital, 48149 Münster, Germany
| | - Pilar Medina
- Haemostasis, Thrombosis, Arteriosclerosis and Vascular Biology Research Group, Medical Research Institute Hospital La Fe, 46026 Valencia, Spain
| | - Martin Götte
- Department of Gynecology and Obstetrics, Münster University Hospital, 48149 Münster, Germany
| | - Bárbara Andrea Mc Cormack
- Research Laboratory in Biomarkers in Reproduction, Gynaecology, and Obstetrics, Research Foundation of the General University Hospital of Valencia, 46014 Valencia, Spain
| | - Josep Marí-Alexandre
- Research Laboratory in Biomarkers in Reproduction, Gynaecology, and Obstetrics, Research Foundation of the General University Hospital of Valencia, 46014 Valencia, Spain
- Department of Pathology, General University Hospital of Valencia Consortium, 46014 Valencia, Spain
| | - Juan Gilabert-Estellés
- Research Laboratory in Biomarkers in Reproduction, Gynaecology, and Obstetrics, Research Foundation of the General University Hospital of Valencia, 46014 Valencia, Spain
- Department of Obstetrics and Gynecology, General University Hospital of Valencia Consortium, 46014 Valencia, Spain
- Department of Pediatrics, Obstetrics, and Gynaecology, University of Valencia, 46014 Valencia, Spain
| |
Collapse
|
32
|
Yang W, Li Y, Boraschi D. Association between Microorganisms and Microplastics: How Does It Change the Host-Pathogen Interaction and Subsequent Immune Response? Int J Mol Sci 2023; 24:ijms24044065. [PMID: 36835476 PMCID: PMC9963316 DOI: 10.3390/ijms24044065] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 12/05/2022] [Accepted: 12/06/2022] [Indexed: 02/22/2023] Open
Abstract
Plastic pollution is a significant problem worldwide because of the risks it poses to the equilibrium and health of the environment as well as to human beings. Discarded plastic released into the environment can degrade into microplastics (MPs) due to various factors, such as sunlight, seawater flow, and temperature. MP surfaces can act as solid scaffolds for microorganisms, viruses, and various biomolecules (such as LPS, allergens, and antibiotics), depending on the MP characteristics of size/surface area, chemical composition, and surface charge. The immune system has efficient recognition and elimination mechanisms for pathogens, foreign agents, and anomalous molecules, including pattern recognition receptors and phagocytosis. However, associations with MPs can modify the physical, structural, and functional characteristics of microbes and biomolecules, thereby changing their interactions with the host immune system (in particular with innate immune cells) and, most likely, the features of the subsequent innate/inflammatory response. Thus, exploring differences in the immune response to microbial agents that have been modified by interactions with MPs is meaningful in terms of identifying new possible risks to human health posed by anomalous stimulation of immune reactivities.
Collapse
Affiliation(s)
- Wenjie Yang
- Shenzhen Institute of Advanced Technology (SIAT), Chinese Academy of Sciences (CAS), Shenzhen 518071, China
- China-Italy Joint Laboratory of Pharmacobiotechnology for Medical Immunomodulation, Shenzhen 518055, China
| | - Yang Li
- Shenzhen Institute of Advanced Technology (SIAT), Chinese Academy of Sciences (CAS), Shenzhen 518071, China
- China-Italy Joint Laboratory of Pharmacobiotechnology for Medical Immunomodulation, Shenzhen 518055, China
| | - Diana Boraschi
- Shenzhen Institute of Advanced Technology (SIAT), Chinese Academy of Sciences (CAS), Shenzhen 518071, China
- China-Italy Joint Laboratory of Pharmacobiotechnology for Medical Immunomodulation, Shenzhen 518055, China
- Institute of Biochemistry and Cell Biology, National Research Council, 80131 Naples, Italy
- Stazione Zoologica Anton Dohrn, 80132 Naples, Italy
- Correspondence:
| |
Collapse
|
33
|
Tsoneva DK, Ivanov MN, Conev NV, Manev R, Stoyanov DS, Vinciguerra M. Circulating Histones to Detect and Monitor the Progression of Cancer. Int J Mol Sci 2023; 24:ijms24020942. [PMID: 36674455 PMCID: PMC9860657 DOI: 10.3390/ijms24020942] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 12/26/2022] [Accepted: 12/29/2022] [Indexed: 01/06/2023] Open
Abstract
Liquid biopsies have emerged as a minimally invasive cancer detection and monitoring method, which could identify cancer-related alterations in nucleosome or histone levels and modifications in blood, saliva, and urine. Histones, the core component of the nucleosome, are essential for chromatin compaction and gene expression modulation. Increasing evidence suggests that circulating histones and histone complexes, originating from cell death or immune cell activation, could act as promising biomarkers for cancer detection and management. In this review, we provide an overview of circulating histones as a powerful liquid biopsy approach and methods for their detection. We highlight current knowledge on circulating histones in hematologic malignancies and solid cancer, with a focus on their role in cancer dissemination, monitoring, and tumorigenesis. Last, we describe recently developed strategies to identify cancer tissue-of-origin in blood plasma based on nucleosome positioning, inferred from nucleosomal DNA fragmentation footprint, which is independent of the genetic landscape.
Collapse
Affiliation(s)
- Desislava K. Tsoneva
- Department of Medical Genetics, Faculty of Medicine, Medical University of Varna, 9000 Varna, Bulgaria
- Department of Stem Cell Biology and Transplantology, Research Institute, Medical University of Varna, 9000 Varna, Bulgaria
| | - Martin N. Ivanov
- Department of Stem Cell Biology and Transplantology, Research Institute, Medical University of Varna, 9000 Varna, Bulgaria
- Department of Anatomy and Cell Biology, Research Institute, Medical University of Varna, 9000 Varna, Bulgaria
| | - Nikolay Vladimirov Conev
- Clinic of Medical Oncology, UMHAT “St. Marina”, 1 “Hristo Smirnenski” Blvd., 9000 Varna, Bulgaria
- Department of Propedeutics of Internal Diseases, Medical University of Varna, 9000 Varna, Bulgaria
| | - Rostislav Manev
- Clinic of Medical Oncology, UMHAT “St. Marina”, 1 “Hristo Smirnenski” Blvd., 9000 Varna, Bulgaria
- Department of Propedeutics of Internal Diseases, Medical University of Varna, 9000 Varna, Bulgaria
| | - Dragomir Svetozarov Stoyanov
- Clinic of Medical Oncology, UMHAT “St. Marina”, 1 “Hristo Smirnenski” Blvd., 9000 Varna, Bulgaria
- Department of Propedeutics of Internal Diseases, Medical University of Varna, 9000 Varna, Bulgaria
| | - Manlio Vinciguerra
- Department of Stem Cell Biology and Transplantology, Research Institute, Medical University of Varna, 9000 Varna, Bulgaria
- Correspondence:
| |
Collapse
|
34
|
van der Elst G, Varol H, Hermans M, Baan CC, Duong-van Huyen JP, Hesselink DA, Kramann R, Rabant M, Reinders MEJ, von der Thüsen JH, van den Bosch TPP, Clahsen-van Groningen MC. The mast cell: A Janus in kidney transplants. Front Immunol 2023; 14:1122409. [PMID: 36891297 PMCID: PMC9986315 DOI: 10.3389/fimmu.2023.1122409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Accepted: 01/30/2023] [Indexed: 02/22/2023] Open
Abstract
Mast cells (MCs) are innate immune cells with a versatile set of functionalities, enabling them to orchestrate immune responses in various ways. Aside from their known role in allergy, they also partake in both allograft tolerance and rejection through interaction with regulatory T cells, effector T cells, B cells and degranulation of cytokines and other mediators. MC mediators have both pro- and anti-inflammatory actions, but overall lean towards pro-fibrotic pathways. Paradoxically, they are also seen as having potential protective effects in tissue remodeling post-injury. This manuscript elaborates on current knowledge of the functional diversity of mast cells in kidney transplants, combining theory and practice into a MC model stipulating both protective and harmful capabilities in the kidney transplant setting.
Collapse
Affiliation(s)
- G van der Elst
- Department of Pathology and Clinical Bioinformatics, Erasmus University Center Rotterdam, Rotterdam, Netherlands
| | - H Varol
- Department of Pathology and Clinical Bioinformatics, Erasmus University Center Rotterdam, Rotterdam, Netherlands
| | - M Hermans
- Department of Internal Medicine, Division of Allergy and Clinical Immunology, Erasmus University Medical Center Rotterdam, Rotterdam, Netherlands
| | - C C Baan
- Department of Internal Medicine, Division of Nephrology and Transplantation, Erasmus University Medical Center Rotterdam, Rotterdam, Netherlands
| | | | - D A Hesselink
- Department of Internal Medicine, Division of Nephrology and Transplantation, Erasmus University Medical Center Rotterdam, Rotterdam, Netherlands
| | - R Kramann
- Department of Internal Medicine, Division of Nephrology and Transplantation, Erasmus University Medical Center Rotterdam, Rotterdam, Netherlands.,Institute of Experimental Medicine and Systems Biology, RWTH Aachen University, Aachen, Germany.,Division of Nephrology and Clinical Immunology, RWTH Aachen University Hospital, Aachen, Germany
| | - M Rabant
- Department of Pathology, Necker Hospital, APHP, Paris, France
| | - M E J Reinders
- Department of Internal Medicine, Division of Nephrology and Transplantation, Erasmus University Medical Center Rotterdam, Rotterdam, Netherlands
| | - J H von der Thüsen
- Department of Pathology and Clinical Bioinformatics, Erasmus University Center Rotterdam, Rotterdam, Netherlands
| | - T P P van den Bosch
- Department of Pathology and Clinical Bioinformatics, Erasmus University Center Rotterdam, Rotterdam, Netherlands
| | - M C Clahsen-van Groningen
- Department of Pathology and Clinical Bioinformatics, Erasmus University Center Rotterdam, Rotterdam, Netherlands.,Institute of Experimental Medicine and Systems Biology, RWTH Aachen University, Aachen, Germany
| |
Collapse
|
35
|
Zhang JG, Chen W, Zhou CK, Ma K, Liu ZZ, Gao Y, Lin XQ, Yang YJ. IFI204 protects host defense against Staphylococcus aureus-induced pneumonia by promoting extracellular traps formation. Exp Cell Res 2023; 422:113415. [PMID: 36379277 DOI: 10.1016/j.yexcr.2022.113415] [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: 08/08/2022] [Revised: 10/26/2022] [Accepted: 11/09/2022] [Indexed: 11/14/2022]
Abstract
Interferon-inducible protein 204 (IFI204) is an intracellular DNA receptor that can recognize DNA viruses and intracellular bacteria. Extracellular traps (ETs) have been recognized as an indispensable antimicrobial barrier that play an indispensable role in bacterial, fungal, parasitic, and viral infections. However, how ETs form and the mechanisms by which IFI204 function in Staphylococcus aureus pneumonia are still unclear. Moreover, by in vitro experiments, we proved that IFI204 deficiency decreases the formation of ETs induced by Staphylococcus aureus in a NOX-independent manner. More importantly, Deoxyribonuclease I (DNase I) treatment significantly inhibited the formation of ETs. IFI204 contributed to ETs formation by promoting citrullination of histone H3 and the expression of PAD4 (peptidylarginine deiminase 4). Altogether, these findings highlight the potential importance of IFI204 for host defense against S. aureus USA300-TCH1516 infection.
Collapse
Affiliation(s)
- Jian-Gang Zhang
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun, 130062, China
| | - Wei Chen
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun, 130062, China
| | - Cheng-Kai Zhou
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun, 130062, China
| | - Ke Ma
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun, 130062, China
| | - Zhen-Zhen Liu
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun, 130062, China
| | - Yu Gao
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun, 130062, China
| | - Xiao-Qi Lin
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun, 130062, China
| | - Yong-Jun Yang
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun, 130062, China.
| |
Collapse
|
36
|
Poto R, Gambardella AR, Marone G, Schroeder JT, Mattei F, Schiavoni G, Varricchi G. Basophils from allergy to cancer. Front Immunol 2022; 13:1056838. [PMID: 36578500 PMCID: PMC9791102 DOI: 10.3389/fimmu.2022.1056838] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Accepted: 11/21/2022] [Indexed: 12/14/2022] Open
Abstract
Human basophils, first identified over 140 years ago, account for just 0.5-1% of circulating leukocytes. While this scarcity long hampered basophil studies, innovations during the past 30 years, beginning with their isolation and more recently in the development of mouse models, have markedly advanced our understanding of these cells. Although dissimilarities between human and mouse basophils persist, the overall findings highlight the growing importance of these cells in health and disease. Indeed, studies continue to support basophils as key participants in IgE-mediated reactions, where they infiltrate inflammatory lesions, release pro-inflammatory mediators (histamine, leukotriene C4: LTC4) and regulatory cytokines (IL-4, IL-13) central to the pathogenesis of allergic diseases. Studies now report basophils infiltrating various human cancers where they play diverse roles, either promoting or hampering tumorigenesis. Likewise, this activity bears remarkable similarity to the mounting evidence that basophils facilitate wound healing. In fact, both activities appear linked to the capacity of basophils to secrete IL-4/IL-13, with these cytokines polarizing macrophages toward the M2 phenotype. Basophils also secrete several angiogenic factors (vascular endothelial growth factor: VEGF-A, amphiregulin) consistent with these activities. In this review, we feature these newfound properties with the goal of unraveling the increasing importance of basophils in these diverse pathobiological processes.
Collapse
Affiliation(s)
- Remo Poto
- Department of Translational Medical Sciences, University of Naples Federico II, Naples, Italy,Department of Oncology and Molecular Medicine, Istituto Superiore di Sanità, Rome, Italy,World Allergy Organization (WAO), Center of Excellence (CoE), Naples, Italy
| | - Adriana Rosa Gambardella
- Department of Translational Medical Sciences, University of Naples Federico II, Naples, Italy,Department of Oncology and Molecular Medicine, Istituto Superiore di Sanità, Rome, Italy
| | - Gianni Marone
- Department of Translational Medical Sciences, University of Naples Federico II, Naples, Italy,World Allergy Organization (WAO), Center of Excellence (CoE), Naples, Italy,Center for Basic and Clinical Immunology Research (CISI), University of Naples Federico II, Naples, Italy,Institute of Experimental Endocrinology and Oncology “G. Salvatore”, National Research Council (CNR), Naples, Italy
| | - John T. Schroeder
- Department of Medicine, Division of Allergy and Clinical Immunology, Johns Hopkins Asthma and Allergy Center, Johns Hopkins University, Baltimore, MD, United States
| | - Fabrizio Mattei
- Department of Oncology and Molecular Medicine, Istituto Superiore di Sanità, Rome, Italy
| | - Giovanna Schiavoni
- Department of Oncology and Molecular Medicine, Istituto Superiore di Sanità, Rome, Italy,*Correspondence: Gilda Varricchi, ; Giovanna Schiavoni,
| | - Gilda Varricchi
- Department of Translational Medical Sciences, University of Naples Federico II, Naples, Italy,World Allergy Organization (WAO), Center of Excellence (CoE), Naples, Italy,Center for Basic and Clinical Immunology Research (CISI), University of Naples Federico II, Naples, Italy,Institute of Experimental Endocrinology and Oncology “G. Salvatore”, National Research Council (CNR), Naples, Italy,*Correspondence: Gilda Varricchi, ; Giovanna Schiavoni,
| |
Collapse
|
37
|
Tembhre MK, Sriwastva MK, Hote MP, Srivastava S, Solanki P, Imran S, Lakshmy R, Sharma A, Jaiswal K, Upadhyay AD. Interleukin-33 Induces Neutrophil Extracellular Trap (NET) Formation and Macrophage Necroptosis via Enhancing Oxidative Stress and Secretion of Proatherogenic Factors in Advanced Atherosclerosis. Antioxidants (Basel) 2022; 11:antiox11122343. [PMID: 36552551 PMCID: PMC9774908 DOI: 10.3390/antiox11122343] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Revised: 11/16/2022] [Accepted: 11/24/2022] [Indexed: 11/29/2022] Open
Abstract
Interleukin-33 (IL-33) acts as an 'alarmin', and its role has been demonstrated in driving immune regulation and inflammation in many human diseases. However, the precise mechanism of action of IL-33 in regulating neutrophil and macrophage functioning is not defined in advanced atherosclerosis (aAT) patients. Further, the role of IL-33 in neutrophil extracellular trap (NET) formation in aAT and its consequent effect on macrophage function is not known. In the present study, we recruited n = 52 aAT patients and n = 52 control subjects. The neutrophils were isolated from both groups via ficoll/percoll-based density gradient centrifugation. The effect of IL-33 on the NET formation ability of the neutrophils was determined in both groups. Monocytes, isolated via a positive selection method, were used to differentiate them into macrophages from each of the study subjects and were challenged by IL-33-primed NETs, followed by the measurement of oxidative stress by calorimetric assay and the expression of the proinflammatory molecules by quantitative PCR (qPCR). Transcript and protein expression was determined by qPCR and immunofluorescence/ELISA, respectively. The increased expression of IL-33R (ST-2) was observed in the neutrophils, along with an increased serum concentration of IL-33 in aAT compared to the controls. IL-33 exacerbates NET formation via specifically upregulating CD16 expression in aAT. IL-33-primed NETs/neutrophils increased the cellular oxidative stress levels in the macrophages, leading to enhanced macrophage necroptosis and the release of atherogenic factors and matrix metalloproteinases (MMPs) in aAT compared to the controls. These findings suggested a pathogenic effect of the IL-33/ST-2 pathway in aAT patients by exacerbating NET formation and macrophage necroptosis, thereby facilitating the release of inflammatory factors and the release of MMPs that may be critical for the destabilization/rupture of atherosclerotic plaques in aAT. Targeting the IL-33/ST-2-NETs axis may be a promising therapeutic target for preventing plaque instability/rupture and its adverse complications in aAT.
Collapse
Affiliation(s)
- Manoj Kumar Tembhre
- Department of Cardiac Biochemistry, All India Institute of Medical Sciences (AIIMS), New Delhi 110029, India
- Correspondence: ; Tel.: +91-880-050-2994
| | | | - Milind Padmakar Hote
- Department of Cardiothoracic & Vascular Surgery, C. T. Centre, AIIMS, New Delhi 110029, India
| | - Shikha Srivastava
- Department of Microbiology & Immunology, University of Louisville, Louisville, KY 40202, USA
| | - Priyanka Solanki
- Department of Cardiac Biochemistry, All India Institute of Medical Sciences (AIIMS), New Delhi 110029, India
| | - Shafaque Imran
- Department of Cardiac Biochemistry, All India Institute of Medical Sciences (AIIMS), New Delhi 110029, India
| | - Ramakrishnan Lakshmy
- Department of Cardiac Biochemistry, All India Institute of Medical Sciences (AIIMS), New Delhi 110029, India
| | - Alpana Sharma
- Department of Biochemistry, AIIMS, New Delhi 110029, India
| | - Kailash Jaiswal
- Department of Cardiac Biochemistry, All India Institute of Medical Sciences (AIIMS), New Delhi 110029, India
| | | |
Collapse
|
38
|
Platelet-Neutrophil Association in NETs-Rich Areas in the Retrieved AIS Patient Thrombi. Int J Mol Sci 2022; 23:ijms232214477. [PMID: 36430952 PMCID: PMC9694992 DOI: 10.3390/ijms232214477] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 11/08/2022] [Accepted: 11/10/2022] [Indexed: 11/23/2022] Open
Abstract
Histological structure of thrombi is a strong determinant of the outcome of vascular recanalization therapy, the only treatment option for acute ischemic stroke (AIS) patients. A total of 21 AIS patients from this study after undergoing non-enhanced CT scan and multimodal MRI were treated with mechanical stent-based and manual aspiration thrombectomy, and thromboembolic retrieved from a cerebral artery. Complementary histopathological and imaging analyses were performed to understand their composition with a specific focus on fibrin, von Willebrand factor, and neutrophil extracellular traps (NETs). Though distinct RBC-rich and platelet-rich areas were found, AIS patient thrombi were overwhelmingly platelet-rich, with 90% of thrombi containing <40% total RBC-rich contents (1.5 to 37%). Structurally, RBC-rich areas were simple, consisting of tightly packed RBCs in thin fibrin meshwork with sparsely populated nucleated cells and lacked any substantial von Willebrand factor (VWF). Platelet-rich areas were structurally more complex with thick fibrin meshwork associated with VWF. Plenty of leukocytes populated the platelet-rich areas, particularly in the periphery and border areas between platelet-rich and RBC-rich areas. Platelet-rich areas showed abundant activated neutrophils (myeloperoxidase+ and neutrophil-elastase+) containing citrullinated histone-decorated DNA. Citrullinated histone-decorated DNA also accumulated extracellularly, pointing to NETosis by the activated neutrophils. Notably, NETs-containing areas showed strong reactivity to VWF, platelets, and high-mobility group box 1 (HMGB1), signifying a close interplay between these components.
Collapse
|
39
|
Neutrophil Extracellular Traps in Asthma: Friends or Foes? Cells 2022; 11:cells11213521. [PMID: 36359917 PMCID: PMC9654069 DOI: 10.3390/cells11213521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 11/04/2022] [Accepted: 11/05/2022] [Indexed: 11/09/2022] Open
Abstract
Asthma is a chronic inflammatory disease characterized by variable airflow limitation and airway hyperresponsiveness. A plethora of immune and structural cells are involved in asthma pathogenesis. The roles of neutrophils and their mediators in different asthma phenotypes are largely unknown. Neutrophil extracellular traps (NETs) are net-like structures composed of DNA scaffolds, histones and granular proteins released by activated neutrophils. NETs were originally described as a process to entrap and kill a variety of microorganisms. NET formation can be achieved through a cell-death process, termed NETosis, or in association with the release of DNA from viable neutrophils. NETs can also promote the resolution of inflammation by degrading cytokines and chemokines. NETs have been implicated in the pathogenesis of various non-infectious conditions, including autoimmunity, cancer and even allergic disorders. Putative surrogate NET biomarkers (e.g., double-strand DNA (dsDNA), myeloperoxidase-DNA (MPO-DNA), and citrullinated histone H3 (CitH3)) have been found in different sites/fluids of patients with asthma. Targeting NETs has been proposed as a therapeutic strategy in several diseases. However, different NETs and NET components may have alternate, even opposite, consequences on inflammation. Here we review recent findings emphasizing the pathogenic and therapeutic potential of NETs in asthma.
Collapse
|
40
|
Zhou XY, Chen K, Zhang JA. Mast cells as important regulators in the development of psoriasis. Front Immunol 2022; 13:1022986. [PMID: 36405690 PMCID: PMC9669610 DOI: 10.3389/fimmu.2022.1022986] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Accepted: 10/24/2022] [Indexed: 08/22/2023] Open
Abstract
Psoriasis is a chronic inflammatory immune skin disease mediated by genetic and environmental factors. As a bridge between innate and adaptive immunity, mast cells are involved in the initiation, development, and maintenance of psoriasis by interactions and communication with a variety of cells. The current review describes interactions of mast cells with T cells, Tregs, keratinocytes, adipocytes, and sensory neurons in psoriasis to emphasize the important role of mast cell-centered cell networks in psoriasis.
Collapse
Affiliation(s)
| | | | - Jia-An Zhang
- Institute of Dermatology, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Chinese Academy of Medical Science and Peking Union Medical College, Nanjing, China
| |
Collapse
|
41
|
Thompson-Souza GA, Vasconcelos CRI, Neves JS. Eosinophils: Focus on DNA extracellular traps. Life Sci 2022; 311:121191. [DOI: 10.1016/j.lfs.2022.121191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 11/08/2022] [Accepted: 11/09/2022] [Indexed: 11/13/2022]
|
42
|
Appelgren D, O’Sullivan KM. Editorial: The role of leukocyte extracellular traps in Inflammation and autoimmunity. Front Immunol 2022; 13:1075026. [PMID: 36389784 PMCID: PMC9664385 DOI: 10.3389/fimmu.2022.1075026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Accepted: 10/24/2022] [Indexed: 01/25/2023] Open
Affiliation(s)
- Daniel Appelgren
- Department of Health, Medicine and Caring Sciences, Linköping University, Linköping, Sweden
| | - Kim Maree O’Sullivan
- Centre for Inflammatory Diseases, Department of Medicine, Monash University, Melbourne, VIC, Australia,*Correspondence: Kim Maree O’Sullivan,
| |
Collapse
|
43
|
Zhang F, Li Y, Wu J, Zhang J, Cao P, Sun Z, Wang W. The role of extracellular traps in ischemia reperfusion injury. Front Immunol 2022; 13:1022380. [PMID: 36211432 PMCID: PMC9533173 DOI: 10.3389/fimmu.2022.1022380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Accepted: 08/31/2022] [Indexed: 11/29/2022] Open
Abstract
In response to strong signals, several types of immune cells release extracellular traps (ETs), which are web-like structures consisting of DNA decorated with various protein substances. This process is most commonly observed in neutrophils. Over the past two decades, ET formation has been recognized as a unique mechanism of host defense and pathogen destruction. However, the role of ETs in sterile inflammation has only been studied extensively in recent years. Ischemia reperfusion injury (IRI) is a type of sterile inflammatory injury. Several studies have reported that ETs have an important role in IRI in various organs. In this review, we describe the release of ETs by various types of immune cells and focus on the mechanism underlying the formation of neutrophil ETs (NETs). In addition, we summarize the role of ETs in IRI in different organs and their effects on tumors. Finally, we discuss the value of ETs as a potential therapeutic target for organ IRI and present possible challenges in conducting studies on IRI-related ETs as well as future research directions and prospects.
Collapse
Affiliation(s)
- Feilong Zhang
- Department of Urology, Beijing Chao-yang Hospital, Capital Medical University, Beijing, China
- Institute of Urology, Capital Medical University, Beijing, China
| | - Yuqing Li
- Department of Urology, Beijing Chao-yang Hospital, Capital Medical University, Beijing, China
- Institute of Urology, Capital Medical University, Beijing, China
| | - Jiyue Wu
- Department of Urology, Beijing Chao-yang Hospital, Capital Medical University, Beijing, China
- Institute of Urology, Capital Medical University, Beijing, China
| | - Jiandong Zhang
- Department of Urology, Beijing Chao-yang Hospital, Capital Medical University, Beijing, China
- Institute of Urology, Capital Medical University, Beijing, China
| | - Peng Cao
- Department of Urology, Beijing Chao-yang Hospital, Capital Medical University, Beijing, China
- Institute of Urology, Capital Medical University, Beijing, China
| | - Zejia Sun
- Department of Urology, Beijing Chao-yang Hospital, Capital Medical University, Beijing, China
- Institute of Urology, Capital Medical University, Beijing, China
| | - Wei Wang
- Department of Urology, Beijing Chao-yang Hospital, Capital Medical University, Beijing, China
- Institute of Urology, Capital Medical University, Beijing, China
- *Correspondence: Wei Wang,
| |
Collapse
|
44
|
Zhong H, Lu RY, Wang Y. Neutrophil extracellular traps in fungal infections: A seesaw battle in hosts. Front Immunol 2022; 13:977493. [PMID: 36189199 PMCID: PMC9515532 DOI: 10.3389/fimmu.2022.977493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Accepted: 08/24/2022] [Indexed: 11/13/2022] Open
Abstract
Fungal infections are a growing health care challenge. Neutrophils play a key role in defense against fungal infections. There are many effective ways for neutrophils to eliminate fungal invaders, such as phagocytosis, oxidative bursts, and the formation of extracellular traps. This process has received considerable attention and has made rapid progress since neutrophil extracellular traps (NETs) formation was described. Here, we describe the formation, induction, and function of NETs, as well as fungal strategies against NETs hunting. We highlight the effects of NETs on common fungal pathogens and how these pathogens survive.
Collapse
|
45
|
Liu Y, Xing LH, Li FX, Wang N, Ma YZ, Li JW, Wu YJ, Liang J, Lei YX, Wang XY, Meng FH, Yang YJ, Li GP, Wang X, Yu SX. Mixed lineage kinase-like protein protects against Clostridium perfringens infection by enhancing NLRP3 inflammasome-extracellular traps axis. iScience 2022; 25:105121. [PMID: 36185365 PMCID: PMC9515590 DOI: 10.1016/j.isci.2022.105121] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 07/16/2022] [Accepted: 09/07/2022] [Indexed: 12/02/2022] Open
Abstract
Despite intense research in understanding Clostridium perfringens (C. perfringens) pathogenesis, the mechanisms by which it is cleared from the host are largely unclarified. In C. perfringens gas gangrene and enterocolitis model, Mlkl -/- mice, lacking mixed lineage kinase-like protein (MLKL), are more susceptible to C. perfringens infection. Mlkl deficiency results in a defect in inflammasome activation, and IL-18 and IL-1β releases. Exogenous administration of recombinant IL-18 is able to rescue the susceptibility of Mlkl -/- mice. Notably, K+ efflux-dependent NLRP3 inflammasome signaling downstream of active MLKL promotes bacterial killing and clearance. Interestingly, the defect of bactericidal activity is also mediated by decreased classical extracellular trap formation in the absence of Mlkl. Our results demonstrate that MLKL mediates extracellular trap formation in a NLRP3 inflammasome-dependent manner. These findings highlight the requirement of MLKL for host defense against C. perfringens infection through enhancing NLRP3 inflammasome-extracellular traps axis.
Collapse
Affiliation(s)
- Yang Liu
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, College of Life Sciences, Inner Mongolia University, Hohhot 010070, China
| | - Li-Hua Xing
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, College of Life Sciences, Inner Mongolia University, Hohhot 010070, China
| | - Fen-Xin Li
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, College of Life Sciences, Inner Mongolia University, Hohhot 010070, China
| | - Na Wang
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, College of Life Sciences, Inner Mongolia University, Hohhot 010070, China
| | - Yu-Ze Ma
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, College of Life Sciences, Inner Mongolia University, Hohhot 010070, China
| | - Jian-Wei Li
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, College of Life Sciences, Inner Mongolia University, Hohhot 010070, China
| | - Yu-Jing Wu
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, College of Life Sciences, Inner Mongolia University, Hohhot 010070, China
| | - Jing Liang
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, College of Life Sciences, Inner Mongolia University, Hohhot 010070, China
| | - Yu-Xin Lei
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, College of Life Sciences, Inner Mongolia University, Hohhot 010070, China
| | - Xue-Yin Wang
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, College of Life Sciences, Inner Mongolia University, Hohhot 010070, China
| | - Fan-Hua Meng
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, College of Life Sciences, Inner Mongolia University, Hohhot 010070, China
| | - Yong-Jun Yang
- Key Laboratory of Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Guang-Peng Li
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, College of Life Sciences, Inner Mongolia University, Hohhot 010070, China
| | - Xiao Wang
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, College of Life Sciences, Inner Mongolia University, Hohhot 010070, China,Corresponding author
| | - Shui-Xing Yu
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, College of Life Sciences, Inner Mongolia University, Hohhot 010070, China,Corresponding author
| |
Collapse
|
46
|
Han T, Tang H, Lin C, Shen Y, Yan D, Tang X, Guo D. Extracellular traps and the role in thrombosis. Front Cardiovasc Med 2022; 9:951670. [PMID: 36093130 PMCID: PMC9452724 DOI: 10.3389/fcvm.2022.951670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Accepted: 08/05/2022] [Indexed: 11/13/2022] Open
Abstract
Thrombotic complications pose serious health risks worldwide. A significant change in our understanding of the pathophysiology of thrombosis has occurred since the discovery of extracellular traps (ETs) and their prothrombotic properties. As a result of immune cells decondensing chromatin into extracellular fibers, ETs promote thrombus formation by acting as a scaffold that activates platelets and coagulates them. The involvement of ETs in thrombosis has been reported in various thrombotic conditions including deep vein thrombosis (DVT), pulmonary emboli, acute myocardial infarction, aucte ischemic stroke, and abdominal aortic aneurysms. This review summarizes the existing evidence of ETs in human and animal model thrombi. The authors described studies showing the existence of ETs in venous or arterial thrombi. In addition, we studied potential novel therapeutic opportunities related to the resolution or prevention of thrombosis by targeting ETs.
Collapse
|
47
|
Zhao J, Jin J. Neutrophil extracellular traps: New players in cancer research. Front Immunol 2022; 13:937565. [PMID: 36059520 PMCID: PMC9437524 DOI: 10.3389/fimmu.2022.937565] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Accepted: 08/02/2022] [Indexed: 11/13/2022] Open
Abstract
NETs are chromatin-derived webs extruded from neutrophils as a result of either infection or sterile stimulation using chemicals, cytokines, or microbes. In addition to the classical role that NETs play in innate immunity against infection and injuries, NETs have been implicated extensively in cancer progression, metastatic dissemination, and therapy resistance. The purpose of this review is to describe recent investigations into NETs and the roles they play in tumor biology and to explore their potential as therapeutic targets in cancer treatment.
Collapse
Affiliation(s)
- Junjie Zhao
- Department of General Surgery, Changsha Hospital Affiliated to Hunan Normal University/The Fourth Hospital of Changsha, Changsha, China
- *Correspondence: Junjie Zhao, ; Jiaqi Jin,
| | - Jiaqi Jin
- Department of Neurosurgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
- *Correspondence: Junjie Zhao, ; Jiaqi Jin,
| |
Collapse
|
48
|
NETosis and Nucleosome Biomarkers in Septic Shock and Critical COVID-19 Patients: An Observational Study. Biomolecules 2022; 12:biom12081038. [PMID: 36008932 PMCID: PMC9405965 DOI: 10.3390/biom12081038] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 07/22/2022] [Accepted: 07/23/2022] [Indexed: 02/04/2023] Open
Abstract
Background: Neutrophil extracellular traps’ (NETs’) formation is a mechanism of defense that neutrophils deploy as an alternative to phagocytosis, to constrain the spread of microorganisms. Aim: The aim was to evaluate biomarkers of NETs’ formation in a patient cohort admitted to intensive care unit (ICU) due to infection. Methods: Forty-six septic shock patients, 22 critical COVID-19 patients and 48 matched control subjects were recruited. Intact nucleosomes containing histone 3.1 (Nu.H3.1), or citrullinated histone H3R8 (Nu.Cit-H3R8), free citrullinated histone (Cit-H3), neutrophil elastase (NE) and myeloperoxidase (MPO) were measured. Results: Significant differences in Nu.H3.1 and NE levels were observed between septic shock and critical COVID-19 subjects as well as with controls (p-values < 0.05). The normalization of nucleosome levels according to the neutrophil count improved the discrimination between septic shock and critical COVID-19 patients. The ratio of Nu.Cit-H3R8 to Nu.H3.1 allowed the determination of nucleosome citrullination degree, presumably by PAD4. Conclusions: H3.1 and Cit-H3R8 nucleosomes appear to be interesting markers of global cell death and neutrophil activation when combined. Nu.H3.1 permits the evaluation of disease severity and differs between septic shock and critical COVID-19 patients, reflecting two distinct potential pathological processes in these conditions.
Collapse
|
49
|
Pfister H. Neutrophil Extracellular Traps and Neutrophil-Derived Extracellular Vesicles: Common Players in Neutrophil Effector Functions. Diagnostics (Basel) 2022; 12:diagnostics12071715. [PMID: 35885618 PMCID: PMC9323717 DOI: 10.3390/diagnostics12071715] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 07/07/2022] [Accepted: 07/12/2022] [Indexed: 02/06/2023] Open
Abstract
Neutrophil granulocytes are a central component of the innate immune system. In recent years, they have gained considerable attention due to newly discovered biological effector functions and their involvement in various pathological conditions. They have been shown to trigger mechanisms that can either promote or inhibit the development of autoimmunity, thrombosis, and cancer. One mechanism for their modulatory effect is the release of extracellular vesicles (EVs), that trigger appropriate signaling pathways in immune cells and other target cells. In addition, activated neutrophils can release bactericidal DNA fibers decorated with proteins from neutrophil granules (neutrophil extracellular traps, NETs). While NETs are very effective in limiting pathogens, they can also cause severe damage if released in excess or cleared inefficiently. Since NETs and EVs share a variety of neutrophil molecules and initially act in the same microenvironment, differential biochemical and functional analysis is particularly challenging. This review focuses on the biochemical and functional parallels and the extent to which the overlapping spectrum of effector molecules has an impact on biological and pathological effects.
Collapse
Affiliation(s)
- Heiko Pfister
- Munich Biomarker Research Center, Institute of Laboratory Medicine, German Heart Center Munich, Technical University Munich, D-80636 Munich, Germany
| |
Collapse
|
50
|
Colciaghi F, Costanza M. Unveiling Leukocyte Extracellular Traps in Inflammatory Responses of the Central Nervous System. Front Immunol 2022; 13:915392. [PMID: 35844591 PMCID: PMC9283689 DOI: 10.3389/fimmu.2022.915392] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Accepted: 06/07/2022] [Indexed: 11/13/2022] Open
Abstract
Over the past nearly two decades, increasing evidence has uncovered how immune cells can actively extrude genetic material to entrap invading pathogens or convey sterile inflammatory signals that contribute to shaping immune responses. Originally identified in neutrophils, the release of decondensed chromatin fibers decorated with antimicrobial proteins, called extracellular traps (ETs), has been recognized as a specific form of programmed inflammatory cell death, which is now known to occur in several other leukocytes. Subsequent reports have shown that self-DNA can be extruded from immune cells even in the absence of cell death phenomena. More recent data suggest that ETs formation could exacerbate neuroinflammation in several disorders of the central nervous system (CNS). This review article provides an overview of the varied types, sources, and potential functions of extracellular DNA released by immune cells. Key evidence suggesting the involvement of ETs in neurodegenerative, traumatic, autoimmune, and oncological disorders of the CNS will be discussed, outlining ongoing challenges and drawing potentially novel lines of investigation.
Collapse
Affiliation(s)
- Francesca Colciaghi
- Epilepsy Unit, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Massimo Costanza
- Molecular Neuro-Oncology Unit, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
- *Correspondence: Massimo Costanza,
| |
Collapse
|