151
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SAITO S, KELEL M. Oral administration of Lacticaseibacillus casei ATCC393 promotes angiogenesis by enhancing neutrophil activity in a murine hind-limb ischemia model. BIOSCIENCE OF MICROBIOTA, FOOD AND HEALTH 2023; 42:94-99. [PMID: 36660599 PMCID: PMC9816049 DOI: 10.12938/bmfh.2022-038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Accepted: 09/13/2022] [Indexed: 01/01/2023]
Abstract
Angiogenesis is a highly regulated biological event and requires the participation of neutrophils, which are innate immune cells, to initiate the systematic responses. Some strains of lactic acid bacteria (LAB) can be used for probiotics that provide functional modifications in our immune systems. Here, we show that oral administration of Lacticaseibacillus casei ATCC393 promoted inflammatory angiogenesis accompanied by enhanced neutrophil activity. Heat-killed L. casei (HK-LC) administration improved angiogenesis in a murine hind-limb ischemia (HLI) model. The recruitment and activity of neutrophils were enhanced by HK-LC administration under the HLI conditions. Our results provide novel evidence of an immunological contribution of LAB uptake in the prevention of or recovery from cardiovascular diseases.
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Affiliation(s)
- Suguru SAITO
- Institute of Biomedical Sciences (IBMS), Academia Sinica, 128
Academia Road, Section 2, Nankang, Taipei 115, Taiwan,Division of Virology, Department of Infection and Immunity,
Faculty of Medicine, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke-shi, Tochigi
329-0498, Japan,Department of Dentistry, Faculty of Medicine and Dentistry,
University of Alberta, Edmonton, Alberta T6G 2R7, Canada,*Corresponding author. Suguru Saito (E-mail: )
| | - Musin KELEL
- Institute of Biomedical Sciences (IBMS), Academia Sinica, 128
Academia Road, Section 2, Nankang, Taipei 115, Taiwan,Department of Biotechnology, College of Biological and
Chemical Engineering, Addis Ababa Science and Technology University, Addis Ababa,
Ethiopia
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152
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Modulations in human neutrophil metabolome and S-glutathionylation of glycolytic pathway enzymes during the course of extracellular trap formation. Biochim Biophys Acta Mol Basis Dis 2023; 1869:166581. [PMID: 36265832 DOI: 10.1016/j.bbadis.2022.166581] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 10/03/2022] [Accepted: 10/05/2022] [Indexed: 11/19/2022]
Abstract
Neutrophil extracellular trap formation (NETosis) has been irrefutably referred to as a distinct and unique form of active cell death with the purpose to counteract invading pathogens or augmenting the inflammatory cascade. Since the discovery, consistent efforts have been made to understand the various aspects of the initiation and sustenance of NETosis. In this study, using a global metabolomics approach during the phorbol 12-myristate 13-acetate (PMA) induced NETosis in human neutrophils, various metabolic pathways were found to be altered which includes intermediates related to, carbohydrate metabolism, and redox related metabolites, nucleic acid metabolism, and amino acids metabolism. Enrichment analysis of the metabolite sets highlighted the importance of the pentose phosphate pathway (PPP) and glutathione metabolism PMA-induced NETotic neutrophils. Further, analysis of the glutathyniolation status of neutrophil proteins by Matrix-assisted laser desorption/ionization-time of flight (MALDI-TOF) indicated six different glutathionylated proteins: among them, two metabolically important proteins were α-enolase and glyceraldehyde-3-phosphate dehydrogenase (GAPDH) with MALDI score 166 and 70 respectively. Other proteins were lactoferrin, β-actin, c-myc promoter-binding protein, and uracil DNA glycosylase with MALDI scores of 96, 167, 104, and 68 respectively. Besides, activation of signalling proteins involved in metabolic regulation is also correlated with NETosis. Altogether, a balance between reactive oxygen species-glutathione metabolism seems to regulate the activity of glycolytic enzymes such as GAPDH and α-enolase during PMA-induced NETosis in a time-dependent manner.
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153
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He J, Lin Z, Song C, Zhang R, Wang H, Yuan S, Bian X, Dong Q, Dou K. High absolute neutrophil count with type 2 diabetes is associated with adverse outcome in patients with coronary artery disease: A large-scale cohort study. Front Endocrinol (Lausanne) 2023; 14:1129633. [PMID: 37113481 PMCID: PMC10126907 DOI: 10.3389/fendo.2023.1129633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Accepted: 03/21/2023] [Indexed: 04/29/2023] Open
Abstract
Background Inflammatory processes crucially modulate the development, progression, and outcomes of coronary artery disease (CAD). Since hyperglycemia could alter inflammatory responses, this study aimed to investigate the effect of ANC, a novel and rapidly available inflammatory biomarker, on the prognosis of patients undergoing PCI with or without type 2 diabetes (T2D). Methods A total of 7,826 patients with CAD hospitalized for PCI at Fuwai Hospital were consecutively recruited. According to the median ANC value, patients were stratified as having high ANC (ANC-H) or low ANC (ANC-L) and were further classified into four groups by T2D. The primary endpoint was major adverse cardiovascular and cerebrovascular events (MACCEs), including all-cause mortality, myocardial infarction, stroke, and target vessel revascularization. Results During a median follow-up of 2.4 years, 509 (6.5%) MACCEs were documented. Diabetic patients with increased ANC were at significantly higher risk of MACCEs (aHR, 1.55; 95% CI, 1.21-1.99; P = 0.001) compared to those in the ANC-L/non-T2D group (P for interaction between T2D and ANC categories = 0.044). Meanwhile, multivariable regression analysis demonstrated the highest MACCE risk in diabetic patients with a higher level of ANC than others (P for trend <0.001). Conclusion This study suggests that stratification of patients with elevated ANC and T2D could provide prognostic information for CAD patients undergoing PCI.
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Affiliation(s)
- Jining He
- Cardiometabolic Medicine Center, State Key Laboratory of Cardiovascular Disease, Beijing, China
- Cardiometabolic Medicine Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Zhangyu Lin
- Cardiometabolic Medicine Center, State Key Laboratory of Cardiovascular Disease, Beijing, China
- Cardiometabolic Medicine Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Chenxi Song
- Cardiometabolic Medicine Center, State Key Laboratory of Cardiovascular Disease, Beijing, China
- Cardiometabolic Medicine Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Rui Zhang
- Cardiometabolic Medicine Center, State Key Laboratory of Cardiovascular Disease, Beijing, China
- Cardiometabolic Medicine Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Haoyu Wang
- Cardiometabolic Medicine Center, State Key Laboratory of Cardiovascular Disease, Beijing, China
- Cardiometabolic Medicine Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Sheng Yuan
- Cardiometabolic Medicine Center, State Key Laboratory of Cardiovascular Disease, Beijing, China
- Cardiometabolic Medicine Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xiaohui Bian
- Cardiometabolic Medicine Center, State Key Laboratory of Cardiovascular Disease, Beijing, China
- Cardiometabolic Medicine Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Qiuting Dong
- Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- *Correspondence: Kefei Dou, ; Qiuting Dong,
| | - Kefei Dou
- Cardiometabolic Medicine Center, State Key Laboratory of Cardiovascular Disease, Beijing, China
- Cardiometabolic Medicine Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- *Correspondence: Kefei Dou, ; Qiuting Dong,
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154
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Liao X, Lan Y, Wang W, Zhang J, Shao R, Yin Z, Gudmundsson GH, Bergman P, Mai K, Ai Q, Wan M. Vitamin D influences gut microbiota and acetate production in zebrafish ( Danio rerio) to promote intestinal immunity against invading pathogens. Gut Microbes 2023; 15:2187575. [PMID: 36879441 PMCID: PMC10012952 DOI: 10.1080/19490976.2023.2187575] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/08/2023] Open
Abstract
Although evidence has shown that vitamin D (VD) influences gut homeostasis, limited knowledge is available how VD regulates intestinal immunity against bacterial infection. In the present study, cyp2r1 mutant zebrafish, lacking the capacity to metabolize VD, and zebrafish fed a diet devoid of VD, were utilized as VD-deficient animal models. Our results confirmed that the expression of antimicrobial peptides (AMPs) and IL-22 was restrained and the susceptibility to bacterial infection was increased in VD-deficient zebrafish. Furthermore, VD induced AMP expression in zebrafish intestine by activating IL-22 signaling, which was dependent on the microbiota. Further analysis uncovered that the abundance of the acetate-producer Cetobacterium in VD-deficient zebrafish was reduced compared to WT fish. Unexpectedly, VD promoted the growth and acetate production of Cetobacterium somerae under culture in vitro. Importantly, acetate treatment rescued the suppressed expression of β-defensins in VD-deficient zebrafish. Finally, neutrophils contributed to VD-induced AMP expression in zebrafish. In conclusion, our study elucidated that VD modulated gut microbiota composition and production of short-chain fatty acids (SCFAs) in zebrafish intestine, leading to enhanced immunity.
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Affiliation(s)
- Xinmeng Liao
- Key Laboratory of Aquaculture Nutrition and Feed, Ministry of Agriculture & Key Laboratory of Mariculture, Ministry of Education, College of Fisheries, Ocean University of China, Qingdao, China
| | - Yawen Lan
- Key Laboratory of Aquaculture Nutrition and Feed, Ministry of Agriculture & Key Laboratory of Mariculture, Ministry of Education, College of Fisheries, Ocean University of China, Qingdao, China
| | - Wentao Wang
- Key Laboratory of Aquaculture Nutrition and Feed, Ministry of Agriculture & Key Laboratory of Mariculture, Ministry of Education, College of Fisheries, Ocean University of China, Qingdao, China
| | - Jinjin Zhang
- Key Laboratory of Aquaculture Nutrition and Feed, Ministry of Agriculture & Key Laboratory of Mariculture, Ministry of Education, College of Fisheries, Ocean University of China, Qingdao, China
| | - Rui Shao
- Key Laboratory of Aquaculture Nutrition and Feed, Ministry of Agriculture & Key Laboratory of Mariculture, Ministry of Education, College of Fisheries, Ocean University of China, Qingdao, China
| | - Zhan Yin
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China
| | - Gudmundur H Gudmundsson
- Department of Laboratory Medicine, Karolinska Institutet, Stockholm, Sweden.,Biomedical Center, University of Iceland, Reykjavik, Iceland
| | - Peter Bergman
- Department of Laboratory Medicine, Karolinska Institutet, Stockholm, Sweden.,The Immunodeficiency Unit, Infectious Disease Clinic, Karolinska University Hospital, Stockholm, Sweden
| | - Kangsen Mai
- Key Laboratory of Aquaculture Nutrition and Feed, Ministry of Agriculture & Key Laboratory of Mariculture, Ministry of Education, College of Fisheries, Ocean University of China, Qingdao, China.,Pilot National Laboratory of Marine Science and Technology, Qingdao, China
| | - Qinghui Ai
- Key Laboratory of Aquaculture Nutrition and Feed, Ministry of Agriculture & Key Laboratory of Mariculture, Ministry of Education, College of Fisheries, Ocean University of China, Qingdao, China.,Pilot National Laboratory of Marine Science and Technology, Qingdao, China
| | - Min Wan
- Key Laboratory of Aquaculture Nutrition and Feed, Ministry of Agriculture & Key Laboratory of Mariculture, Ministry of Education, College of Fisheries, Ocean University of China, Qingdao, China.,Pilot National Laboratory of Marine Science and Technology, Qingdao, China
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155
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Wang Y, Zhu CL, Li P, Liu Q, Li HR, Yu CM, Deng XM, Wang JF. The role of G protein-coupled receptor in neutrophil dysfunction during sepsis-induced acute respiratory distress syndrome. Front Immunol 2023; 14:1112196. [PMID: 36891309 PMCID: PMC9986442 DOI: 10.3389/fimmu.2023.1112196] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Accepted: 02/07/2023] [Indexed: 02/22/2023] Open
Abstract
Sepsis is defined as a life-threatening dysfunction due to a dysregulated host response to infection. It is a common and complex syndrome and is the leading cause of death in intensive care units. The lungs are most vulnerable to the challenge of sepsis, and the incidence of respiratory dysfunction has been reported to be up to 70%, in which neutrophils play a major role. Neutrophils are the first line of defense against infection, and they are regarded as the most responsive cells in sepsis. Normally, neutrophils recognize chemokines including the bacterial product N-formyl-methionyl-leucyl-phenylalanine (fMLP), complement 5a (C5a), and lipid molecules Leukotriene B4 (LTB4) and C-X-C motif chemokine ligand 8 (CXCL8), and enter the site of infection through mobilization, rolling, adhesion, migration, and chemotaxis. However, numerous studies have confirmed that despite the high levels of chemokines in septic patients and mice at the site of infection, the neutrophils cannot migrate to the proper target location, but instead they accumulate in the lungs, releasing histones, DNA, and proteases that mediate tissue damage and induce acute respiratory distress syndrome (ARDS). This is closely related to impaired neutrophil migration in sepsis, but the mechanism involved is still unclear. Many studies have shown that chemokine receptor dysregulation is an important cause of impaired neutrophil migration, and the vast majority of these chemokine receptors belong to the G protein-coupled receptors (GPCRs). In this review, we summarize the signaling pathways by which neutrophil GPCR regulates chemotaxis and the mechanisms by which abnormal GPCR function in sepsis leads to impaired neutrophil chemotaxis, which can further cause ARDS. Several potential targets for intervention are proposed to improve neutrophil chemotaxis, and we hope that this review may provide insights for clinical practitioners.
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Affiliation(s)
- Yi Wang
- Faculty of Anesthesiology, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Cheng-Long Zhu
- Faculty of Anesthesiology, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Peng Li
- Faculty of Anesthesiology, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Qiang Liu
- Faculty of Anesthesiology, Changhai Hospital, Naval Medical University, Shanghai, China.,Jiangsu Province Key Laboratory of Anesthesiology, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Hui-Ru Li
- Faculty of Anesthesiology, Changhai Hospital, Naval Medical University, Shanghai, China.,Faculty of Anesthesiology, Weifang Medical University, Weifang, Shandong, China
| | - Chang-Meng Yu
- Faculty of Anesthesiology, Changhai Hospital, Naval Medical University, Shanghai, China.,Jiangsu Province Key Laboratory of Anesthesiology, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Xiao-Ming Deng
- Faculty of Anesthesiology, Changhai Hospital, Naval Medical University, Shanghai, China.,Jiangsu Province Key Laboratory of Anesthesiology, Xuzhou Medical University, Xuzhou, Jiangsu, China.,Faculty of Anesthesiology, Weifang Medical University, Weifang, Shandong, China
| | - Jia-Feng Wang
- Faculty of Anesthesiology, Changhai Hospital, Naval Medical University, Shanghai, China
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156
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Fang Q, Stehr AM, Naschberger E, Knopf J, Herrmann M, Stürzl M. No NETs no TIME: Crosstalk between neutrophil extracellular traps and the tumor immune microenvironment. Front Immunol 2022; 13:1075260. [PMID: 36618417 PMCID: PMC9816414 DOI: 10.3389/fimmu.2022.1075260] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Accepted: 12/05/2022] [Indexed: 12/24/2022] Open
Abstract
The tumor immune microenvironment (TIME) controls tumorigenesis. Neutrophils are important components of TIME and control tumor progression and therapy resistance. Neutrophil extracellular traps (NETs) ejected by activated neutrophils are net-like structures composed of decondensed extracellular chromatin filaments decorated with a plethora of granules as well as cytoplasmic proteins. Many of these harbour post translational modifications. Cancer cells reportedly trigger NET formation, and conversely, NETs alter the TIME and promote tumor cell proliferation and migration. The specific interactions between NETs and TIME and the respective effects on tumor progression are still elusive. In certain tumors, a CD4+ T helper (Th) 2 cell-associated TIME induces NETs and exerts immunosuppressive functions via programmed death 1 (PD-1)/PD-L1, both associated with poorer prognosis. In other cases, NETs induce the proliferation of Th1 cells, associated with an improved prognosis in cancer. In addition, NETs can drive macrophage polarization and often rely on macrophages to promote cancer cell invasion and metastasis. In turn, macrophages can swiftly clear NETs in an immunologically silent manner. The aim of this review is to summarize the knowledge about the mutual interaction between NETs and TIME and its impact on tumor growth and therapy.
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Affiliation(s)
- Qi Fang
- Division of Molecular and Experimental Surgery, Translational Research Center, Department of Surgery, Friedrich-Alexander Universität (FAU) Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Antonia Margarethe Stehr
- Division of Molecular and Experimental Surgery, Translational Research Center, Department of Surgery, Friedrich-Alexander Universität (FAU) Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Elisabeth Naschberger
- Division of Molecular and Experimental Surgery, Translational Research Center, Department of Surgery, Friedrich-Alexander Universität (FAU) Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany,Comprehensive Cancer Center Erlangen-Europäische Metropolregion Nürnberg (EMN), Universitätsklinikum Erlangen, Erlangen, Germany
| | - Jasmin Knopf
- Department of Internal Medicine 3, Friedrich-Alexander Universität (FAU) Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany,Deutsches Zentrum für Immuntherapie (DZI), Friedrich-Alexander Universität (FAU) Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Martin Herrmann
- Department of Internal Medicine 3, Friedrich-Alexander Universität (FAU) Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany,Deutsches Zentrum für Immuntherapie (DZI), Friedrich-Alexander Universität (FAU) Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Michael Stürzl
- Division of Molecular and Experimental Surgery, Translational Research Center, Department of Surgery, Friedrich-Alexander Universität (FAU) Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany,Comprehensive Cancer Center Erlangen-Europäische Metropolregion Nürnberg (EMN), Universitätsklinikum Erlangen, Erlangen, Germany,*Correspondence: Michael Stürzl,
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157
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In Silico Prediction of Hub Genes Involved in Diabetic Kidney and COVID-19 Related Disease by Differential Gene Expression and Interactome Analysis. Genes (Basel) 2022; 13:genes13122412. [PMID: 36553678 PMCID: PMC9778100 DOI: 10.3390/genes13122412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Revised: 12/14/2022] [Accepted: 12/16/2022] [Indexed: 12/23/2022] Open
Abstract
Diabetic kidney disease (DKD) is a frequently chronic kidney pathology derived from diabetes comorbidity. This condition has irreversible damage and its risk factor increases with SARS-CoV-2 infection. The prognostic outcome for diabetic patients with COVID-19 is dismal, even with intensive medical treatment. However, there is still scarce information on critical genes involved in the pathophysiological impact of COVID-19 on DKD. Herein, we characterize differential expression gene (DEG) profiles and determine hub genes undergoing transcriptional reprogramming in both disease conditions. Out of 995 DEGs, we identified 42 shared with COVID-19 pathways. Enrichment analysis elucidated that they are significantly induced with implications for immune and inflammatory responses. By performing a protein-protein interaction (PPI) network and applying topological methods, we determine the following five hub genes: STAT1, IRF7, ISG15, MX1 and OAS1. Then, by network deconvolution, we determine their co-expressed gene modules. Moreover, we validate the conservancy of their upregulation using the Coronascape database (DB). Finally, tissue-specific regulation of the five predictive hub genes indicates that OAS1 and MX1 expression levels are lower in healthy kidney tissue. Altogether, our results suggest that these genes could play an essential role in developing severe outcomes of COVID-19 in DKD patients.
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158
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Varricchi G, Ferri S, Pepys J, Poto R, Spadaro G, Nappi E, Paoletti G, Virchow JC, Heffler E, Canonica WG. Biologics and airway remodeling in severe asthma. Allergy 2022; 77:3538-3552. [PMID: 35950646 PMCID: PMC10087445 DOI: 10.1111/all.15473] [Citation(s) in RCA: 71] [Impact Index Per Article: 35.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 08/03/2022] [Accepted: 08/05/2022] [Indexed: 01/28/2023]
Abstract
Asthma is a chronic inflammatory airway disease resulting in airflow obstruction, which in part can become irreversible to conventional therapies, defining the concept of airway remodeling. The introduction of biologics in severe asthma has led in some patients to the complete normalization of previously considered irreversible airflow obstruction. This highlights the need to distinguish a "fixed" airflow obstruction due to structural changes unresponsive to current therapies, from a "reversible" one as demonstrated by lung function normalization during biological therapies not previously obtained even with high-dose systemic glucocorticoids. The mechanisms by which exposure to environmental factors initiates the inflammatory responses that trigger airway remodeling are still incompletely understood. Alarmins represent epithelial-derived cytokines that initiate immunologic events leading to inflammatory airway remodeling. Biological therapies can improve airflow obstruction by addressing these airway inflammatory changes. In addition, biologics might prevent and possibly even revert "fixed" remodeling due to structural changes. Hence, it appears clinically important to separate the therapeutic effects (early and late) of biologics as a new paradigm to evaluate the effects of these drugs and future treatments on airway remodeling in severe asthma.
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Affiliation(s)
- Gilda Varricchi
- Department of Translational Medical Sciences, University of Naples Federico II, Naples, Italy.,Center for Basic and Clinical Immunology Research (CISI), University of Naples Federico II, Naples, Italy.,World Allergy Organization (WAO) Center of Excellence, Naples, Italy.,Institute of Experimental Endocrinology and Oncology (IEOS), National Research Council, Naples, Italy
| | - Sebastian Ferri
- Personalized Medicine Asthma and Allergy Unit - IRCCS Humanitas Research Hospital, Milan, Italy
| | - Jack Pepys
- Department of Biomedical Sciences, Humanitas University, Milan, Italy
| | - Remo Poto
- Department of Translational Medical Sciences, University of Naples Federico II, Naples, Italy.,Center for Basic and Clinical Immunology Research (CISI), University of Naples Federico II, Naples, Italy.,World Allergy Organization (WAO) Center of Excellence, Naples, Italy
| | - Giuseppe Spadaro
- Department of Translational Medical Sciences, University of Naples Federico II, Naples, Italy.,Center for Basic and Clinical Immunology Research (CISI), University of Naples Federico II, Naples, Italy.,World Allergy Organization (WAO) Center of Excellence, Naples, Italy
| | - Emanuele Nappi
- Personalized Medicine Asthma and Allergy Unit - IRCCS Humanitas Research Hospital, Milan, Italy.,Department of Biomedical Sciences, Humanitas University, Milan, Italy
| | - Giovanni Paoletti
- Personalized Medicine Asthma and Allergy Unit - IRCCS Humanitas Research Hospital, Milan, Italy.,Department of Biomedical Sciences, Humanitas University, Milan, Italy
| | | | - Enrico Heffler
- Personalized Medicine Asthma and Allergy Unit - IRCCS Humanitas Research Hospital, Milan, Italy.,Department of Biomedical Sciences, Humanitas University, Milan, Italy
| | - Walter G Canonica
- Personalized Medicine Asthma and Allergy Unit - IRCCS Humanitas Research Hospital, Milan, Italy.,Department of Biomedical Sciences, Humanitas University, Milan, Italy
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159
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Hajishengallis G, Chavakis T. Mechanisms and Therapeutic Modulation of Neutrophil-Mediated Inflammation. J Dent Res 2022; 101:1563-1571. [PMID: 35786033 PMCID: PMC9703529 DOI: 10.1177/00220345221107602] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
Neutrophils are abundant, short-lived myeloid cells that are readily recruitable to sites of inflammation, where they serve as first-line defense against infection and other types of insult to the host. In recent years, there has been increased understanding on the involvement of neutrophils in chronic inflammatory diseases, where they may act as direct effectors of destructive inflammation. However, destructive tissue inflammation is also instigated in settings of neutrophil paucity, suggesting that neutrophils also mediate critical homeostatic functions. The activity of neutrophils is regulated by a variety of local tissue factors. In addition, systemic metabolic conditions, such as hypercholesterolemia and hyperglycemia, affect the production and mobilization of neutrophils from the bone marrow. Moreover, according to the recently emerged concept of innate immune memory, the functions of neutrophils can be enhanced through the process of trained granulopoiesis. This process may have both beneficial and potentially destructive effects, depending on context, that is, protective against infections and tumors, while destructive in the context of chronic inflammatory conditions. Although we are far from a complete understanding of the mechanisms underlying the regulation and function of neutrophils, current insights enable the development of targeted therapeutic interventions that can restrain neutrophil-mediated inflammation in chronic inflammatory diseases, such as periodontitis.
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Affiliation(s)
- G. Hajishengallis
- Department of Basic and Translational Sciences, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - T. Chavakis
- Institute for Clinical Chemistry and Laboratory Medicine, University Hospital and Faculty of Medicine, Technische Universität Dresden, Dresden, Sachsen, Germany
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160
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Özcan A, Boyman O. Mechanisms regulating neutrophil responses in immunity, allergy, and autoimmunity. Allergy 2022; 77:3567-3583. [PMID: 36067034 PMCID: PMC10087481 DOI: 10.1111/all.15505] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 08/16/2022] [Accepted: 09/03/2022] [Indexed: 01/28/2023]
Abstract
Neutrophil granulocytes, or neutrophils, are the most abundant circulating leukocytes in humans and indispensable for antimicrobial immunity, as exemplified in patients with inborn and acquired defects of neutrophils. Neutrophils were long regarded as the foot soldiers of the immune system, solely destined to execute a set of effector functions against invading pathogens before undergoing apoptosis, the latter of which was ascribed to their short life span. This simplistic understanding of neutrophils has now been revised on the basis of insights gained from the use of mouse models and single-cell high-throughput techniques, revealing tissue- and context-specific roles of neutrophils in guiding immune responses. These studies also demonstrated that neutrophil responses were controlled by sophisticated feedback mechanisms, including directed chemotaxis of neutrophils to tissue-draining lymph nodes resulting in modulation of antimicrobial immunity and inflammation. Moreover, findings in mice and humans showed that neutrophil responses adapted to different deterministic cytokine signals, which controlled their migration and effector function as well as, notably, their biologic clock by affecting the kinetics of their aging. These mechanistic insights have important implications for health and disease in humans, particularly, in allergic diseases, such as atopic dermatitis and allergic asthma bronchiale, as well as in autoinflammatory and autoimmune diseases. Hence, our improved understanding of neutrophils sheds light on novel therapeutic avenues, focusing on molecularly defined biologic agents.
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Affiliation(s)
- Alaz Özcan
- Department of Immunology, University Hospital Zurich, Zurich, Switzerland
| | - Onur Boyman
- Department of Immunology, University Hospital Zurich, Zurich, Switzerland.,Faculty of Medicine, University of Zurich, Zurich, Switzerland.,Faculty of Science, University of Zurich, Zurich, Switzerland
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161
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Neutrophil Extracellular Traps in Asthma: Friends or Foes? Cells 2022; 11:cells11213521. [PMID: 36359917 PMCID: PMC9654069 DOI: 10.3390/cells11213521] [Citation(s) in RCA: 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.
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162
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Peng S, Gao J, Stojkov D, Yousefi S, Simon H. Established and emerging roles for mitochondria in neutrophils. Immunol Rev 2022; 314:413-426. [PMID: 36331270 DOI: 10.1111/imr.13158] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Neutrophils are the most abundant innate immune cells in human blood, emerging as important players in a variety of diseases. Mitochondria are bioenergetic, biosynthetic, and signaling organelles critical for cell fate and function. Mitochondria have been overlooked in neutrophil research owing to the conventional view that neutrophils contain few, if any, competent mitochondria and do not rely on these organelles for adenosine triphosphate production. A growing body of evidence suggests that mitochondria participate in neutrophil biology at many levels, ranging from neutrophil development to chemotaxis, effector function, and cell death. Moreover, mitochondria and mitochondrial components, such as mitochondrial deoxyribonucleic acid, can be released by neutrophils to eliminate infection and/or shape immune response, depending on the specific context. In this review, we provide an update on the functional role of mitochondria in neutrophils, highlight mitochondria as key players in modulating the neutrophil phenotype and function during infection and inflammation, and discuss the possibilities and challenges to exploit the unique aspects of mitochondria in neutrophils for disease treatment.
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Affiliation(s)
- Shuang Peng
- Institute of Pharmacology University of Bern Bern Switzerland
| | - Jian Gao
- Department of Molecular and Cellular Oncology The University of Texas MD Anderson Cancer Center Houston Texas USA
| | - Darko Stojkov
- Institute of Pharmacology University of Bern Bern Switzerland
| | - Shida Yousefi
- Institute of Pharmacology University of Bern Bern Switzerland
| | - Hans‐Uwe Simon
- Institute of Pharmacology University of Bern Bern Switzerland
- Department of Clinical Immunology and Allergology Sechenov University Moscow Russia
- Laboratory of Molecular Immunology, Institute of Fundamental Medicine and Biology Kazan Federal University Kazan Russia
- Institute of Biochemistry, Brandenburg Medical School Neuruppin Germany
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Giardia duodenalis trophozoites triggered bovine neutrophil extracellular traps formation dependent on P2X1 receptor and PAD4 in vitro. Vet Parasitol 2022; 312:109841. [DOI: 10.1016/j.vetpar.2022.109841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 11/14/2022] [Accepted: 11/17/2022] [Indexed: 11/21/2022]
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164
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Wang Z, Jenabian MA, Alexandrova Y, Pagliuzza A, Olivenstein R, Samarani S, Chomont N, Kembel SW, Costiniuk CT. Interplay between the Lung Microbiome, Pulmonary Immunity and Viral Reservoirs in People Living with HIV under Antiretroviral Therapy. Viruses 2022; 14:v14112395. [PMID: 36366495 PMCID: PMC9693210 DOI: 10.3390/v14112395] [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: 09/18/2022] [Revised: 10/19/2022] [Accepted: 10/27/2022] [Indexed: 01/31/2023] Open
Abstract
Pulmonary dysbiosis may predispose people living with HIV (PLWH) to chronic lung disease. Herein, we assessed whether intrapulmonary HIV reservoir size and immune disruption are associated with reduced bacterial lung diversity in PLWH. Bacterial DNA was extracted and PCR-amplified from cell-free bronchoalveolar lavage (BAL) fluid from 28 PLWH and 9 HIV-negative controls. Amplicon sequence variant (ASV) relative abundances and taxonomic identities were analyzed using joint species distribution modeling. HIV-DNA was quantified from blood and pulmonary CD4+ T-cells using ultra-sensitive qPCR. Immunophenotyping of BAL T-cells was performed using flow cytometry. Lung microbiome diversity was lower in smokers than non-smokers and microbiome composition was more variable in PLWH than HIV-negative individuals. Frequencies of effector memory BAL CD4+ and CD8+ T-cells positively correlated with abundance of several bacterial families while frequencies of BAL activated CD4+ T-cells negatively correlated with abundance of most lung bacterial families. Higher HIV-DNA levels in blood, but not in BAL, as well as frequencies of senescent CD4+ T-cells were associated with reduced bacterial diversity. These findings suggest that HIV infection may weaken the relationship between the lung microbiome and smoking status. Viral reservoir and immune activation levels may impact the lung microbiome, predisposing PLWH to pulmonary comorbidities.
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Affiliation(s)
- Zihui Wang
- Département des Sciences Biologiques, Université du Québec à Montréal (UQAM), Montreal, QC H2X 1Y4, Canada
| | - Mohammad-Ali Jenabian
- Département des Sciences Biologiques, Université du Québec à Montréal (UQAM), Montreal, QC H2X 1Y4, Canada
- Département de Microbiologie, Infectiologie et Immunologie, Université de Montréal, Montreal, QC H3T 1J4, Canada
| | - Yulia Alexandrova
- Département des Sciences Biologiques, Université du Québec à Montréal (UQAM), Montreal, QC H2X 1Y4, Canada
- Infectious Diseases and Immunity in Global Health Program, Research Institute of MUHC, Montreal, QC H4A 3J1, Canada
- Department of Microbiology and Immunology, McGill University, Montreal, QC H3A 2B4, Canada
| | | | | | - Suzanne Samarani
- Infectious Diseases and Immunity in Global Health Program, Research Institute of MUHC, Montreal, QC H4A 3J1, Canada
| | - Nicolas Chomont
- Département de Microbiologie, Infectiologie et Immunologie, Université de Montréal, Montreal, QC H3T 1J4, Canada
- Centre de Recherche du CHUM, Montreal, QC H2X 0A9, Canada
| | - Steven W. Kembel
- Département des Sciences Biologiques, Université du Québec à Montréal (UQAM), Montreal, QC H2X 1Y4, Canada
| | - Cecilia T. Costiniuk
- Infectious Diseases and Immunity in Global Health Program, Research Institute of MUHC, Montreal, QC H4A 3J1, Canada
- Department of Microbiology and Immunology, McGill University, Montreal, QC H3A 2B4, Canada
- Division of Infectious Diseases and Chronic Viral Illness Service, McGill University Health Centre, Montreal, QC H4A 3J1, Canada
- Correspondence: ; Tel.: +1-(514)-843-2090; Fax: +1-(514)-843-2092
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Zheng Y, Sefik E, Astle J, Karatepe K, Öz HH, Solis AG, Jackson R, Luo HR, Bruscia EM, Halene S, Shan L, Flavell RA. Human neutrophil development and functionality are enabled in a humanized mouse model. Proc Natl Acad Sci U S A 2022; 119:e2121077119. [PMID: 36269862 PMCID: PMC9618085 DOI: 10.1073/pnas.2121077119] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Accepted: 08/09/2022] [Indexed: 02/03/2023] Open
Abstract
Mice with a functional human immune system serve as an invaluable tool to study the development and function of the human immune system in vivo. A major technological limitation of all current humanized mouse models is the lack of mature and functional human neutrophils in circulation and tissues. To overcome this, we generated a humanized mouse model named MISTRGGR, in which the mouse granulocyte colony-stimulating factor (G-CSF) was replaced with human G-CSF and the mouse G-CSF receptor gene was deleted in existing MISTRG mice. By targeting the G-CSF cytokine-receptor axis, we dramatically improved the reconstitution of mature circulating and tissue-infiltrating human neutrophils in MISTRGGR mice. Moreover, these functional human neutrophils in MISTRGGR are recruited upon inflammatory and infectious challenges and help reduce bacterial burden. MISTRGGR mice represent a unique mouse model that finally permits the study of human neutrophils in health and disease.
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Affiliation(s)
- Yunjiang Zheng
- Department of Immunobiology, Yale University, New Haven, CT 06520
| | - Esen Sefik
- Department of Immunobiology, Yale University, New Haven, CT 06520
| | - John Astle
- Department of Immunobiology, Yale University, New Haven, CT 06520
- Department of Pathology, Medical College of Wisconsin, Milwaukee, WI 53226
| | - Kutay Karatepe
- Department of Cell Biology, Yale University, New Haven, CT 06520
- Yale Stem Cell Center, Yale University, New Haven, CT 06520
| | - Hasan H. Öz
- Section of Pediatric Pulmonology, Allergy, Immunology & Sleep Medicine, Department of Pediatrics, Yale University School of Medicine, New Haven, CT 06520
| | - Angel G. Solis
- Department of Immunobiology, Yale University, New Haven, CT 06520
- Department of Microbiology, University of Pennsylvania, Philadelphia, PA 19104
| | - Ruaidhrí Jackson
- Department of Immunobiology, Yale University, New Haven, CT 06520
- Department of Immunology, Harvard Medical School, Boston, MA 02115
| | - Hongbo R. Luo
- Department of Laboratory Medicine, The Stem Cell Program, Boston Children’s Hospital, Boston, MA 02115
- Department of Pathology, Harvard Medical School, Boston, MA 02115
| | - Emanuela M. Bruscia
- Section of Pediatric Pulmonology, Allergy, Immunology & Sleep Medicine, Department of Pediatrics, Yale University School of Medicine, New Haven, CT 06520
| | - Stephanie Halene
- Section of Hematology, Department of Internal Medicine, Yale Comprehensive Cancer Center, Yale University School of Medicine, New Haven, CT 06520
- Department of Pathology, Yale University School of Medicine, New Haven, CT 06520
| | - Liang Shan
- Department of Immunobiology, Yale University, New Haven, CT 06520
- Division of Infectious Diseases, Department of Medicine, Washington University School of Medicine in St. Louis, St. Louis, MO 63110
| | - Richard A. Flavell
- Department of Immunobiology, Yale University, New Haven, CT 06520
- Howard Hughes Medical Institute (HHMI), New Haven, CT 06520
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166
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Wan Y, Shen J, Ouyang J, Dong P, Hong Y, Liang L, Liu J. Bibliometric and visual analysis of neutrophil extracellular traps from 2004 to 2022. Front Immunol 2022; 13:1025861. [PMID: 36341351 PMCID: PMC9634160 DOI: 10.3389/fimmu.2022.1025861] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Accepted: 10/10/2022] [Indexed: 12/27/2022] Open
Abstract
Background Neutrophil extracellular traps (NETs) are specialized structures formed by neutrophils that were initially found to be important in killing pathogenic bacteria during infection. With the development of related research, the relationship between NETs and diseases such as sepsis, cancer, and systemic lupus erythematosus has received close attention. However, there is a lack of reports that comprehensively and objectively present the current status of NETs-related studies. Therefore, this study aims to visually analyze the current status and trends of NETs-related research by means of bibliometrics and knowledge mapping. Methods NETs-related articles and reviews were retrieved using the Web of Science core collection subject search, and bibliometric analysis was performed in Excel 365, CiteSpace, VOSviewer, and Bibliometrix (R-Tool of R-Studio). Results A total of 4866 publications from 2004 to 2022 were included in the bibliometric analysis. The number of publications shows an increasing trend from year to year. Collaborative network analysis shows that the United States and Germany are the most influential countries in this field, with the highest number of publications and citations. The journal with the most publications is Frontiers in Immunology. Brinkmann Volker is an authoritative author in this field, and his publication "Neutrophil extracellular traps kill bacteria" is the most frequently cited. The literature and keyword analysis shows that the relationship between NETs and diseases (hematological diseases, sepsis, cancer, etc.) and cell death (apoptosis, necroptosis, pyroptosis, etc.) is a popular research topic. Currently, NETs and SARS-CoV-2-related studies are at the forefront of the field. Conclusion This study is the first to visualize the research in NETs-related fields using bibliometric methods, revealing the trends and frontiers of NETs research. This study will provide valuable references for scholars to find research focus questions and partners.
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Affiliation(s)
- Yantong Wan
- Guangdong Provincial Key Laboratory of Proteomics, Department of Pathophysiology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Junyi Shen
- The Second Clinical Medical College, Southern Medical University, Guangzhou, China
| | - Jiafu Ouyang
- Guangdong Provincial Key Laboratory of Proteomics, Department of Pathophysiology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Peng Dong
- College of Anesthesiology, Southern Medical University, Guangzhou, China
| | - Yinghao Hong
- Guangdong Provincial Key Laboratory of Proteomics, Department of Pathophysiology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Lixin Liang
- Guangdong Provincial Key Laboratory of Proteomics, Department of Pathophysiology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Jinghua Liu
- Guangdong Provincial Key Laboratory of Proteomics, Department of Pathophysiology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China,*Correspondence: Jinghua Liu,
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167
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Van Roy Z, Kielian T. Exploring epigenetic reprogramming during central nervous system infection. Immunol Rev 2022; 311:112-129. [PMID: 35481573 PMCID: PMC9790395 DOI: 10.1111/imr.13079] [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: 03/31/2022] [Accepted: 04/06/2022] [Indexed: 12/31/2022]
Abstract
Epigenetics involves the study of various modes of adaptable transcriptional regulation, contributing to cell identity, characteristics, and function. During central nervous system (CNS) infection, epigenetic mechanisms can exert pronounced control over the maturation and antimicrobial properties of nearly every immune cell type. Epigenetics is a relatively new field, with the first mention of these marks proposed only a half-century ago and a substantial body of immunological epigenetic research emerging only in the last few decades. Here, we review the best-characterized epigenetic marks and their functions as well as illustrate how various immune cell populations responding to CNS infection utilize these marks to organize their activation state and inflammatory processes. We also discuss the metabolic and clinical implications of epigenetic marks and the rapidly expanding set of tools available to researchers that are enabling elucidation of increasingly detailed genetic regulatory pathways. These considerations paint an intricate picture of inflammatory regulation, where epigenetic marks influence genetic, signaling, and environmental elements to orchestrate a tailored immunological response to the threat at hand, cementing epigenetics as an important player in immunity.
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Affiliation(s)
- Zachary Van Roy
- Department of Pathology and MicrobiologyUniversity of Nebraska Medical CenterOmahaNebraskaUSA
| | - Tammy Kielian
- Department of Pathology and MicrobiologyUniversity of Nebraska Medical CenterOmahaNebraskaUSA
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Charlie-Silva I, Feitosa NM, Pontes LG, Fernandes BH, Nóbrega RH, Gomes JMM, Prata MNL, Ferraris FK, Melo DC, Conde G, Rodrigues LF, Aracati MF, Corrêa-Junior JD, Manrique WG, Superio J, Garcez AS, Conceição K, Yoshimura TM, Núñez SC, Eto SF, Fernandes DC, Freitas AZ, Ribeiro MS, Nedoluzhko A, Lopes-Ferreira M, Borra RC, Barcellos LJG, Perez AC, Malafaia G, Cunha TM, Belo MAA, Galindo-Villegas J. Plasma proteome responses in zebrafish following λ-carrageenan-Induced inflammation are mediated by PMN leukocytes and correlate highly with their human counterparts. Front Immunol 2022; 13:1019201. [PMID: 36248846 PMCID: PMC9559376 DOI: 10.3389/fimmu.2022.1019201] [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: 08/14/2022] [Accepted: 09/09/2022] [Indexed: 11/23/2022] Open
Abstract
Regulation of inflammation is a critical process for maintaining physiological homeostasis. The λ-carrageenan (λ-CGN) is a mucopolysaccharide extracted from the cell wall of red algae (Chondrus crispus) capable of inducing acute intestinal inflammation, which is translated into the production of acute phase reactants secreted into the blood circulation. However, the associated mechanisms in vertebrates are not well understood. Here, we investigated the crucial factors behind the inflammatory milieu of λ-CGN-mediated inflammation administered at 0, 1.75, and 3.5% (v/w) by i.p. injection into the peritoneal cavity of adult zebrafish (ZF) (Danio rerio). We found that polymorphonuclear leukocytes (neutrophils) and lymphocytes infiltrating the ZF peritoneal cavity had short-term persistence. Nevertheless, they generate a strong pattern of inflammation that affects systemically and is enough to produce edema in the cavity. Consistent with these findings, cell infiltration, which causes notable tissue changes, resulted in the overexpression of several acute inflammatory markers at the protein level. Using reversed-phase high-performance liquid chromatography followed by a hybrid linear ion-trap mass spectrometry shotgun proteomic approach, we identified 2938 plasma proteins among the animals injected with PBS and 3.5% λ-CGN. First, the bioinformatic analysis revealed the composition of the plasma proteome. Interestingly, 72 commonly expressed proteins were recorded among the treated and control groups, but, surprisingly, 2830 novel proteins were differentially expressed exclusively in the λ-CGN-induced group. Furthermore, from the commonly expressed proteins, compared to the control group 62 proteins got a significant (p < 0.05) upregulation in the λ-CGN-treated group, while the remaining ten proteins were downregulated. Next, we obtained the major protein-protein interaction networks between hub protein clusters in the blood plasma of the λ-CGN induced group. Moreover, to understand the molecular underpinnings of these effects based on the unveiled protein sets, we performed a bioinformatic structural similarity analysis and generated overlapping 3D reconstructions between ZF and humans during acute inflammation. Biological pathway analysis pointed to the activation and abundance of diverse classical immune and acute phase reactants, several catalytic enzymes, and varied proteins supporting the immune response. Together, this information can be used for testing and finding novel pharmacological targets to treat human intestinal inflammatory diseases.
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Affiliation(s)
| | - Natália M. Feitosa
- Integrated Laboratory of Translational Bioscience, Institute of Biodiversity and Sustainability, Federal University of Rio de Janeiro, Macaé, Brazil
| | | | - Bianca H. Fernandes
- Laboratório de Controle Genético e Sanitário, Faculdade de Medicina Universidade de São Paulo, São Paulo, Brazil
| | - Rafael H. Nóbrega
- Reproductive and Molecular Biology Group, Department of Morphology, Institute of Biosciences, São Paulo State University, São Paulo, Brazil
| | - Juliana M. M. Gomes
- Transplantation Immunobiology Lab, Department of Immunology, Institute of Biomedical Sciences, Universidade de São Paulo, São Paulo, Brazil
| | - Mariana N. L. Prata
- Department of Pharmacology, Instituto de CiênciasBiomédicas-Universidade Federal de Minas Gerais (ICB-UFMG), Belo Horizonte, Brazil
| | - Fausto K. Ferraris
- Department of Pharmacology and Toxicology, Oswaldo Cruz Foundation (FIOCRUZ), Rio de Janeiro, Brazil
| | - Daniela C. Melo
- Laboratory of Zebrafish from Federal de Minas Gerais (UFMG), Belo Horizonte, Brazil
| | - Gabriel Conde
- Department of Preventive Veterinary Medicine, São Paulo State University, São Paulo, Brazil
| | - Letícia F. Rodrigues
- Department of Preventive Veterinary Medicine, São Paulo State University, São Paulo, Brazil
| | - Mayumi F. Aracati
- Department of Preventive Veterinary Medicine, São Paulo State University, São Paulo, Brazil
| | - José D. Corrêa-Junior
- Department of Morphology, Instituto de CiênciasBiomédicas-Universidade Federal de Minas Gerais (ICB-UFMG), Belo Horizonte, Brazil
| | - Wilson G. Manrique
- Veterinary College, Federal University of Rondonia, Rolim de Moura, Brazil
| | - Joshua Superio
- Department of Aquaculture, Faculty of Biosciences and Aquaculture, Nord University, Bodø, Norway
| | | | - Katia Conceição
- Peptide Biochemistry Laboratory, Universidade Federal de São Paulo (UNIFESP), Sao Jose Dos Campos, Brazil
| | - Tania M. Yoshimura
- Center for Lasers and Applications, Instituto de PesquisasEnergéticas e Nucleares (IPEN-CNEN), Sao Paulo, Brazil
| | - Silvia C. Núñez
- University Brazil, São Paulo, Brazil
- University Brazil, Descalvado, Brazil
| | - Silas F. Eto
- Development and Innovation Laboratory, Center of Innovation and Development, Butantan Institute, São Paulo, Brazil
| | - Dayanne C. Fernandes
- Department of Preventive Veterinary Medicine, São Paulo State University, São Paulo, Brazil
| | - Anderson Z. Freitas
- Center for Lasers and Applications, Instituto de PesquisasEnergéticas e Nucleares (IPEN-CNEN), Sao Paulo, Brazil
| | - Martha S. Ribeiro
- Center for Lasers and Applications, Instituto de PesquisasEnergéticas e Nucleares (IPEN-CNEN), Sao Paulo, Brazil
| | - Artem Nedoluzhko
- Paleogenomics Laboratory, European University at Saint Petersburg, Saint Petersburg, Russia
| | | | - Ricardo C. Borra
- Department of Genetics and Evolution, Federal University of São Carlos, São Paulo, Brazil
| | - Leonardo J. G. Barcellos
- Postgraduate Program in Pharmacology, Federal University of Santa Maria, Rio Grande do Sul, Brazil
- Postgraduate Program in Bioexperimentation. University of Passo Fundo, Rio Grande do Sul, Brazil
| | - Andrea C. Perez
- Department of Pharmacology and Toxicology, Oswaldo Cruz Foundation (FIOCRUZ), Rio de Janeiro, Brazil
| | - Guilheme Malafaia
- Biological Research Laboratory, Goiano Federal Institute, Urutaí, Brazil
| | - Thiago M. Cunha
- Center of Research in Inflammatory Diseases, Ribeirão Preto Medical School, University of São Paulo, São Paulo, Brazil
- Department of Pharmacology, Ribeirão Preto Medical School, University of São Paulo, São Paulo, Brazil
| | - Marco A. A. Belo
- Department of Preventive Veterinary Medicine, São Paulo State University, São Paulo, Brazil
- University Brazil, São Paulo, Brazil
- University Brazil, Descalvado, Brazil
- *Correspondence: Marco A. A. Belo, ; Jorge Galindo-Villegas,
| | - Jorge Galindo-Villegas
- Department of Genomics, Faculty of Biosciences and Aquaculture, Nord University, Bodø, Norway
- *Correspondence: Marco A. A. Belo, ; Jorge Galindo-Villegas,
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169
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Danne C, Michaudel C, Skerniskyte J, Planchais J, Magniez A, Agus A, Michel ML, Lamas B, Da Costa G, Spatz M, Oeuvray C, Galbert C, Poirier M, Wang Y, Lapière A, Rolhion N, Ledent T, Pionneau C, Chardonnet S, Bellvert F, Cahoreau E, Rocher A, Arguello RR, Peyssonnaux C, Louis S, Richard ML, Langella P, El-Benna J, Marteyn B, Sokol H. CARD9 in neutrophils protects from colitis and controls mitochondrial metabolism and cell survival. Gut 2022; 72:1081-1092. [PMID: 36167663 DOI: 10.1136/gutjnl-2022-326917] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Accepted: 09/04/2022] [Indexed: 12/08/2022]
Abstract
OBJECTIVES Inflammatory bowel disease (IBD) results from a combination of genetic predisposition, dysbiosis of the gut microbiota and environmental factors, leading to alterations in the gastrointestinal immune response and chronic inflammation. Caspase recruitment domain 9 (Card9), one of the IBD susceptibility genes, has been shown to protect against intestinal inflammation and fungal infection. However, the cell types and mechanisms involved in the CARD9 protective role against inflammation remain unknown. DESIGN We used dextran sulfate sodium (DSS)-induced and adoptive transfer colitis models in total and conditional CARD9 knock-out mice to uncover which cell types play a role in the CARD9 protective phenotype. The impact of Card9 deletion on neutrophil function was assessed by an in vivo model of fungal infection and various functional assays, including endpoint dilution assay, apoptosis assay by flow cytometry, proteomics and real-time bioenergetic profile analysis (Seahorse). RESULTS Lymphocytes are not intrinsically involved in the CARD9 protective role against colitis. CARD9 expression in neutrophils, but not in epithelial or CD11c+cells, protects against DSS-induced colitis. In the absence of CARD9, mitochondrial dysfunction increases mitochondrial reactive oxygen species production leading to the premature death of neutrophilsthrough apoptosis, especially in oxidative environment. The decreased functional neutrophils in tissues might explain the impaired containment of fungi and increased susceptibility to intestinal inflammation. CONCLUSION These results provide new insight into the role of CARD9 in neutrophil mitochondrial function and its involvement in intestinal inflammation, paving the way for new therapeutic strategies targeting neutrophils.
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Affiliation(s)
- Camille Danne
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, Jouy-en-Josas, France .,Sorbonne Université, INSERM UMRS-938, Centre de Recherche Saint-Antoine, CRSA, AP-HP, Hôpital Saint-Antoine, Service de Gastroentérologie, F-75012 Paris, France.,Paris Center For Microbiome Medicine (PaCeMM) FHU, Paris, France
| | - Chloé Michaudel
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, Jouy-en-Josas, France.,Paris Center For Microbiome Medicine (PaCeMM) FHU, Paris, France
| | - Jurate Skerniskyte
- CNRS, UPR 9002, Université de Strasbourg, Institut de Biologie Moléculaire et Cellulaire, Architecture et Réactivité de l'ARN, Strasbourg, France
| | - Julien Planchais
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, Jouy-en-Josas, France.,Paris Center For Microbiome Medicine (PaCeMM) FHU, Paris, France
| | - Aurélie Magniez
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, Jouy-en-Josas, France.,Paris Center For Microbiome Medicine (PaCeMM) FHU, Paris, France
| | - Allison Agus
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, Jouy-en-Josas, France.,Paris Center For Microbiome Medicine (PaCeMM) FHU, Paris, France
| | - Marie-Laure Michel
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, Jouy-en-Josas, France.,Paris Center For Microbiome Medicine (PaCeMM) FHU, Paris, France
| | - Bruno Lamas
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, Jouy-en-Josas, France.,Paris Center For Microbiome Medicine (PaCeMM) FHU, Paris, France
| | - Gregory Da Costa
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, Jouy-en-Josas, France.,Paris Center For Microbiome Medicine (PaCeMM) FHU, Paris, France
| | - Madeleine Spatz
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, Jouy-en-Josas, France.,Paris Center For Microbiome Medicine (PaCeMM) FHU, Paris, France
| | - Cyriane Oeuvray
- Sorbonne Université, INSERM UMRS-938, Centre de Recherche Saint-Antoine, CRSA, AP-HP, Hôpital Saint-Antoine, Service de Gastroentérologie, F-75012 Paris, France.,Paris Center For Microbiome Medicine (PaCeMM) FHU, Paris, France
| | - Chloé Galbert
- Sorbonne Université, INSERM UMRS-938, Centre de Recherche Saint-Antoine, CRSA, AP-HP, Hôpital Saint-Antoine, Service de Gastroentérologie, F-75012 Paris, France.,Paris Center For Microbiome Medicine (PaCeMM) FHU, Paris, France
| | - Maxime Poirier
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, Jouy-en-Josas, France.,Paris Center For Microbiome Medicine (PaCeMM) FHU, Paris, France
| | - Yazhou Wang
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, Jouy-en-Josas, France.,Paris Center For Microbiome Medicine (PaCeMM) FHU, Paris, France
| | - Alexia Lapière
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, Jouy-en-Josas, France.,Paris Center For Microbiome Medicine (PaCeMM) FHU, Paris, France
| | - Nathalie Rolhion
- Sorbonne Université, INSERM UMRS-938, Centre de Recherche Saint-Antoine, CRSA, AP-HP, Hôpital Saint-Antoine, Service de Gastroentérologie, F-75012 Paris, France.,Paris Center For Microbiome Medicine (PaCeMM) FHU, Paris, France
| | - Tatiana Ledent
- Sorbonne Université, INSERM UMRS-938, Centre de Recherche Saint-Antoine, CRSA, AP-HP, Hôpital Saint-Antoine, Service de Gastroentérologie, F-75012 Paris, France
| | - Cédric Pionneau
- Sorbonne Université, INSERM, UMS PASS, Plateforme Postgénomique de la Pitié Salpêtrière (P3S), Paris, France
| | - Solenne Chardonnet
- Sorbonne Université, INSERM, UMS PASS, Plateforme Postgénomique de la Pitié Salpêtrière (P3S), Paris, France
| | - Floriant Bellvert
- MetaToul-MetaboHUB, National Infrastructure of Metabolomics & Fluxomics (ANR-11INBS-0010), 31077 Toulouse, France
| | - Edern Cahoreau
- MetaToul-MetaboHUB, National Infrastructure of Metabolomics & Fluxomics (ANR-11INBS-0010), 31077 Toulouse, France
| | - Amandine Rocher
- MetaToul-MetaboHUB, National Infrastructure of Metabolomics & Fluxomics (ANR-11INBS-0010), 31077 Toulouse, France
| | - Rafael Rose Arguello
- Aix Marseille Univ, CNRS, INSERM, CIML, Centre d'Immunologie de Marseille-Luminy, Marseille, France
| | - Carole Peyssonnaux
- Institut Cochin, INSERM, CNRS, Université de Paris, Laboratoire d'excellence GR-Ex, Paris, France
| | - Sabine Louis
- Institut Cochin, INSERM, CNRS, Université de Paris, Laboratoire d'excellence GR-Ex, Paris, France
| | - Mathias L Richard
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, Jouy-en-Josas, France.,Paris Center For Microbiome Medicine (PaCeMM) FHU, Paris, France
| | - Philippe Langella
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, Jouy-en-Josas, France.,Paris Center For Microbiome Medicine (PaCeMM) FHU, Paris, France
| | - Jamel El-Benna
- Université de Paris, INSERM-U1149, CNRS-ERL8252, Centre de Recherche sur l'Inflammation (CRI), Laboratoire d'excellence Inflamex, Faculté de Médecine Xavier Bichat, Paris, France
| | - Benoit Marteyn
- CNRS, UPR 9002, Université de Strasbourg, Institut de Biologie Moléculaire et Cellulaire, Architecture et Réactivité de l'ARN, Strasbourg, France.,University of Strasbourg Institute for Advanced Study (USIAS), Strasbourg, France.,Institut Pasteur, Université de Paris, Inserm 1225 Unité de Pathogenèse des Infections Vasculaires, 28 rue du Dr. Roux, 75724 Paris Cedex 15, France
| | - Harry Sokol
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, Jouy-en-Josas, France .,Sorbonne Université, INSERM UMRS-938, Centre de Recherche Saint-Antoine, CRSA, AP-HP, Hôpital Saint-Antoine, Service de Gastroentérologie, F-75012 Paris, France.,Paris Center For Microbiome Medicine (PaCeMM) FHU, Paris, France
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170
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Gaffney E, Murphy D, Walsh A, Connolly S, Basdeo SA, Keane J, Phelan JJ. Defining the role of neutrophils in the lung during infection: Implications for tuberculosis disease. Front Immunol 2022; 13:984293. [PMID: 36203565 PMCID: PMC9531133 DOI: 10.3389/fimmu.2022.984293] [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: 07/01/2022] [Accepted: 08/30/2022] [Indexed: 11/25/2022] Open
Abstract
Neutrophils are implicated in the pathogenesis of many diseases involving inflammation. Neutrophils are also critical to host defence and have a key role in the innate immune response to infection. Despite their efficiencies against a wide range of pathogens however, their ability to contain and combat Mycobacterium tuberculosis (Mtb) in the lung remains uncertain and contentious. The host response to Mtb infection is very complex, involving the secretion of various cytokines and chemokines from a wide variety of immune cells, including neutrophils, macrophages, monocytes, T cells, B cells, NK cells and dendritic cells. Considering the contributing role neutrophils play in the advancement of many diseases, understanding how an inflammatory microenvironment affects neutrophils, and how neutrophils interact with other immune cells, particularly in the context of the infected lung, may aid the design of immunomodulatory therapies. In the current review, we provide a brief overview of the mechanisms that underpin pathogen clearance by neutrophils and discuss their role in the context of Mtb and non-Mtb infection. Next, we examine the current evidence demonstrating how neutrophils interact with a range of human and non-human immune cells and how these interactions can differentially prime, activate and alter a repertoire of neutrophil effector functions. Furthermore, we discuss the metabolic pathways employed by neutrophils in modulating their response to activation, pathogen stimulation and infection. To conclude, we highlight knowledge gaps in the field and discuss plausible novel drug treatments that target host neutrophil metabolism and function which could hold therapeutic potential for people suffering from respiratory infections.
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171
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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.
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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,
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172
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Peng S, Stojkov D, Gao J, Oberson K, Latzin P, Casaulta C, Yousefi S, Simon HU. Nascent RHOH acts as a molecular brake on actomyosin-mediated effector functions of inflammatory neutrophils. PLoS Biol 2022; 20:e3001794. [PMID: 36108062 PMCID: PMC9514642 DOI: 10.1371/journal.pbio.3001794] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Revised: 09/27/2022] [Accepted: 08/11/2022] [Indexed: 12/22/2022] Open
Abstract
In contrast to molecular changes associated with increased inflammatory responses, little is known about intracellular counter-regulatory mechanisms that control signaling cascades associated with functional responses of neutrophils. Active RHO GTPases are typically considered as effector proteins that elicit cellular responses. Strikingly, we show here that RHOH, although being constitutively GTP-bound, limits neutrophil degranulation and the formation of neutrophil extracellular traps (NETs). Mechanistically, RHOH is induced under inflammatory conditions and binds to non-muscle myosin heavy chain IIA (NMHC IIA) in activated neutrophils in order to inhibit the transport of mitochondria and granules along actin filaments, which is partially reverted upon disruption of the interaction with NMHC IIA by introducing a mutation in RhoH at lysine 34 (RhoHK34A). In parallel, RHOH inhibits actin polymerization presumably by modulating RAC1 activity. In vivo studies using Rhoh-/- mice, demonstrate an increased antibacterial defense capability against Escherichia coli (E. coli). Collectively, our data reveal a previously undefined role of RHOH as a molecular brake for actomyosin-mediated neutrophil effector functions, which represents an intracellular regulatory axis involved in controlling the strength of an antibacterial inflammatory response.
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Affiliation(s)
- Shuang Peng
- Institute of Pharmacology, University of Bern, Bern, Switzerland
| | - Darko Stojkov
- Institute of Pharmacology, University of Bern, Bern, Switzerland
| | - Jian Gao
- State Key Laboratory of Pharmaceutical Biotechnology, Department of Biotechnology and Pharmaceutical Sciences, School of Life Sciences, Nanjing University, Nanjing, China
| | - Kevin Oberson
- Institute of Pharmacology, University of Bern, Bern, Switzerland
| | - Philipp Latzin
- Division of Respiratory Medicine, Department of Pediatrics, University Children’s Hospital of Bern, University of Bern, Bern, Switzerland
| | - Carmen Casaulta
- Division of Respiratory Medicine, Department of Pediatrics, University Children’s Hospital of Bern, University of Bern, Bern, Switzerland
| | - Shida Yousefi
- Institute of Pharmacology, University of Bern, Bern, Switzerland
| | - Hans-Uwe Simon
- Institute of Pharmacology, University of Bern, Bern, Switzerland
- Department of Clinical Immunology and Allergology, Sechenov University, Moscow, Russia
- Laboratory of Molecular Immunology, Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russia
- Institute of Biochemistry, Brandenburg Medical School, Neuruppin, Germany
- * E-mail:
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173
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Wang W, Liu Z, Zhang Y, Wang L, Meng D, Li X, Zhang J, Wu Y, Zhou X, Liu G. Benzyl butyl phthalate (BBP) induces lung injury and fibrosis through neutrophil extracellular traps. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 309:119743. [PMID: 35835272 DOI: 10.1016/j.envpol.2022.119743] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 06/16/2022] [Accepted: 07/06/2022] [Indexed: 06/15/2023]
Abstract
Benzyl butyl phthalate (BBP) is an extensively used plasticizer that has aroused widespread concern about its potential toxicity. Previous evidences demonstrate that BBP exposure is associated with asthma and impaired lung function. Accumulating data indicates that neutrophil extracellular traps (NETs), a particular manner of neutrophil death, play a vital role in the pathogenesis of respiratory diseases. However, the immunotoxicity effects of BBP in lung injury are unclear. Here, we aimed to investigate the potential impacts of BBP-induced NETs on lung injury and fibrosis. Mice treated with BBP exhibited significant lung injury, with alveolar hemorrhage, lung edema and increased neutrophil infiltration. Meanwhile, BBP promoted extensive neutrophil infiltration in bronchoalveolar lavage fluid and NETs deposition in lung tissues. Moreover, BBP clearly triggered NETs formation in vitro, which was confirmed by net-like structures decorated with myeloperoxidase and citrullinated histone H3. Furthermore, BBP fueled glucose uptake and ROS burst of neutrophils playing essential roles during NETs formation. Additionally, we proved that NETs could promote fibrogenesis in murine lung epithelial cells and observed lung fibrosis remarkably after BBP-induced injury. Taken together, our findings indicated that exposure to BBP could increase the risk for lung injury and fibrosis by disturbing innate immunity via NETs formation.
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Affiliation(s)
- Weili Wang
- Institute of Respiratory Disease, School of Medicine, Chongqing University, Chongqing, 400044, PR China; College of Bioengineering, Chongqing University, Chongqing, 400044, PR China
| | - Zhenyu Liu
- Department of Nephrology, The Key Laboratory of Kidney Disease of Chongqing, Xinqiao Hospital, Army Medical University, Chongqing, 400037, PR China
| | - Yu Zhang
- Institute of Immunology, College of Basic Medical Sciences, Army Medical University, Chongqing, 400037, PR China
| | - Liu Wang
- Institute of Respiratory Disease, School of Medicine, Chongqing University, Chongqing, 400044, PR China
| | - Dongwei Meng
- Institute of Immunology, College of Basic Medical Sciences, Army Medical University, Chongqing, 400037, PR China
| | - Xueqin Li
- Department of Nephrology, The Key Laboratory of Kidney Disease of Chongqing, Xinqiao Hospital, Army Medical University, Chongqing, 400037, PR China
| | - Jingbo Zhang
- Department of Nephrology, The Key Laboratory of Kidney Disease of Chongqing, Xinqiao Hospital, Army Medical University, Chongqing, 400037, PR China
| | - Yuzhang Wu
- Institute of Immunology, College of Basic Medical Sciences, Army Medical University, Chongqing, 400037, PR China
| | - Xinyuan Zhou
- Institute of Immunology, College of Basic Medical Sciences, Army Medical University, Chongqing, 400037, PR China
| | - Guoxiang Liu
- Institute of Respiratory Disease, School of Medicine, Chongqing University, Chongqing, 400044, PR China.
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174
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RNA methylation in immune cells. Adv Immunol 2022; 155:39-94. [PMID: 36357012 DOI: 10.1016/bs.ai.2022.08.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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175
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Han J, Tian Y, Wang M, Li Y, Yin J, Qu W, Yan C, Ding R, Guan Y, Wang Q. Proteomics unite traditional toxicological assessment methods to evaluate the toxicity of iron oxide nanoparticles. Front Pharmacol 2022; 13:1011065. [PMID: 36172182 PMCID: PMC9512491 DOI: 10.3389/fphar.2022.1011065] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Accepted: 08/22/2022] [Indexed: 11/23/2022] Open
Abstract
Iron oxide nanoparticles (IONPs) are the first generation of nanomaterials approved by the Food and Drug Administration for use as imaging agents and for the treatment of iron deficiency in chronic kidney disease. However, several IONPs-based imaging agents have been withdrawn because of toxic effects and the poor understanding of the underlying mechanisms. This study aimed to evaluate IONPs toxicity and to elucidate the underlying mechanism after intravenous administration in rats. Seven-week-old rats were intravenously administered IONPs at doses of 0, 10, 30, and 90 mg/kg body weight for 14 consecutive days. Toxicity and molecular perturbations were evaluated using traditional toxicological assessment methods and proteomics approaches, respectively. The administration of 90 mg/kg IONPs induced mild toxic effects, including abnormal clinical signs, lower body weight gain, changes in serum biochemical and hematological parameters, and increased organ coefficients in the spleen, liver, heart, and kidneys. Toxicokinetics, tissue distribution, histopathological, and transmission electron microscopy analyses revealed that the spleen was the primary organ for IONPs elimination from the systemic circulation and that the macrophage lysosomes were the main organelles of IONPs accumulation after intravenous administration. We identified 197 upregulated and 75 downregulated proteins in the spleen following IONPs administration by proteomics. Mechanically, the AKT/mTOR/TFEB signaling pathway facilitated autophagy and lysosomal activation in splenic macrophages. This is the first study to elucidate the mechanism of IONPs toxicity by combining proteomics with traditional methods for toxicity assessment.
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176
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Zhang T, Zhao J, Fu J, Chen G, Ma T. Improvement of the sepsis survival rate by adenosine 2a receptor antagonists depends on immune regulatory functions of regulatory T-cells. Front Immunol 2022; 13:996446. [PMID: 36148230 PMCID: PMC9485829 DOI: 10.3389/fimmu.2022.996446] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2022] [Accepted: 08/18/2022] [Indexed: 11/13/2022] Open
Abstract
Adenosine shows a significant immunosuppressive effect in sepsis via binding to the adenosine 2a receptor (A2aR). Both genetic deletion and pharmacological inhibition of the A2aR may improve survival in sepsis. However, available research on this protective mechanism is quite limited. We used an A2aR antagonist (ZM241385) to treat a cecal ligation and puncture model of normal mice or regulatory T-cell (Treg)-depletion mice and found that the protective effect of ZM241385 is dependent on Tregs. Mechanically, A2aR inactivation was associated with decreased frequencies and reduced function of Foxp3+ Tregs, as evidenced by Foxp3 and CTLA-4 expression and classical effector T-cell proliferative assays, suggesting Treg modulation is a potential protective mechanism against sepsis. Simultaneously, the function and quantity of abdominal neutrophils were improved with ZM241385 treatment. To see if a link exists between them, Tregs and neutrophils were co-cultured, and it was found that ZM241385 blocked the inhibitory effect of Tregs on neutrophils. According to our research, Tregs play a key role in how A2aR antagonists improve sepsis prognosis and bacterial clearance.
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Affiliation(s)
- Teng Zhang
- Department of General Surgery, Tianjin Medical University General Hospital, Tianjin, China
| | - Jie Zhao
- Department of Intensive Care Unit, Tianjin Medical University General Hospital, Tianjin, China
| | - Jingnan Fu
- Department of General Surgery, Tianjin Medical University General Hospital, Tianjin, China
| | - Guibing Chen
- Department of General Surgery, Tianjin Medical University General Hospital, Tianjin, China
| | - Tao Ma
- Department of General Surgery, Tianjin Medical University General Hospital, Tianjin, China
- *Correspondence: Tao Ma,
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177
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Takele Y, Adem E, Mulaw T, Müller I, Cotton JA, Kropf P. Following successful anti-leishmanial treatment, neutrophil counts, CD10 expression and phagocytic capacity remain reduced in visceral leishmaniasis patients co-infected with HIV. PLoS Negl Trop Dis 2022; 16:e0010681. [PMID: 35969625 PMCID: PMC9410551 DOI: 10.1371/journal.pntd.0010681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Revised: 08/25/2022] [Accepted: 07/20/2022] [Indexed: 11/18/2022] Open
Abstract
Visceral leishmaniasis (VL) patients co-infected with HIV (VL/HIV patients) experience frequent treatment failures, VL relapses, opportunistic infections, and higher mortality. Their immune system remains profoundly suppressed after clinical cure and they maintain higher parasite load. This is in contrast with patients with VL alone (VL patients). Since neutrophils play a critical role in the control of Leishmania replication and the regulation of immune responses, we tested the hypothesis that neutrophil activation status and effector functions are fully restored in VL, but not in VL/HIV patients. Our results show the neutrophil counts and all activation markers and effector functions tested in our study were reduced at the time of diagnosis in VL and VL/HIV patients as compared to controls. CD62L, CD63, arginase 1 expression levels and reactive oxygen species production were restored at the end of treatment in both groups. However, neutrophil counts, CD10 expression and phagocytosis remained significantly lower throughout follow-up in VL/HIV patients; suggesting that dysregulated neutrophils contribute to the impaired host defence against pathogens in VL/HIV patients.
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Affiliation(s)
- Yegnasew Takele
- Department of Infectious Disease, Imperial College London, London, United Kingdom
- Leishmaniasis Research and Treatment Centre, University of Gondar, Ethiopia
| | - Emebet Adem
- Leishmaniasis Research and Treatment Centre, University of Gondar, Ethiopia
| | - Tadele Mulaw
- Leishmaniasis Research and Treatment Centre, University of Gondar, Ethiopia
| | - Ingrid Müller
- Department of Infectious Disease, Imperial College London, London, United Kingdom
| | | | - Pascale Kropf
- Department of Infectious Disease, Imperial College London, London, United Kingdom
- * E-mail:
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178
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Cristinziano L, Modestino L, Capone M, Madonna G, Mallardo D, Giannarelli D, D’Angelo G, Ferrara AL, Loffredo S, Varricchi G, Vanella V, Festino L, Ascierto PA, Galdiero MR. PD-L1+ neutrophils as novel biomarkers for stage IV melanoma patients treated with nivolumab. Front Immunol 2022; 13:962669. [PMID: 36016960 PMCID: PMC9398490 DOI: 10.3389/fimmu.2022.962669] [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: 06/06/2022] [Accepted: 07/19/2022] [Indexed: 11/13/2022] Open
Abstract
Melanoma displays a rising incidence, and the mortality associated with metastatic form remains high. Monoclonal antibodies that block programmed death (PD-1) and PD Ligand 1 (PD-L1) network have revolutionized the history of metastatic disease. PD-L1 is expressed on several immune cells and can be also expressed on human neutrophils (PMNs). The role of peripheral blood PMNs as predictive biomarkers in anti-PD-1 therapy of melanoma is largely unknown. In this study, we aimed to determine activation status and PD-L1 expression on human neutrophils as possible novel biomarkers in stage IV melanoma patients (MPs). We found that PMNs from MPs displayed an activated phenotype and increased PD-L1 levels compared to healthy controls (HCs). Patients with lower PD-L1+ PMN frequencies displayed better progression-free survival (PFS) and overall survival (OS) compared to patients with high PD-L1+ PMN frequencies. Multivariate analysis showed that PD-L1+ PMNs predicted patient outcome in BRAF wild type MP subgroup but not in BRAF mutated MPs. PD-L1+ PMN frequency emerges as a novel biomarker in stage IV BRAF wild type MPs undergoing anti-PD-1 immunotherapy. Our findings suggest further evaluation of the role of neutrophil subsets and their mediators in melanoma patients undergoing immunotherapy.
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Affiliation(s)
- Leonardo Cristinziano
- Department of Translational Medical Sciences (DiSMeT), University of Naples Federico II, Naples, Italy
- Center for Basic and Clinical Immunology Research, Interdipartimental Center for basic and Clinical Immunology Research (CISI), University of Naples Federico II, Naples, Italy
- World Allergy Organization (WAO) Center of Excellence, University of Naples Federico II, Naples, Italy
| | - Luca Modestino
- Department of Translational Medical Sciences (DiSMeT), University of Naples Federico II, Naples, Italy
- Center for Basic and Clinical Immunology Research, Interdipartimental Center for basic and Clinical Immunology Research (CISI), University of Naples Federico II, Naples, Italy
- World Allergy Organization (WAO) Center of Excellence, University of Naples Federico II, Naples, Italy
| | - Mariaelena Capone
- Melanoma, Cancer Immunotherapy, and Development Therapeutics Unit, Istituto Nazionale Tumori IRCCS Fondazione “G. Pascale”, Naples, Italy
| | - Gabriele Madonna
- Melanoma, Cancer Immunotherapy, and Development Therapeutics Unit, Istituto Nazionale Tumori IRCCS Fondazione “G. Pascale”, Naples, Italy
| | - Domenico Mallardo
- Melanoma, Cancer Immunotherapy, and Development Therapeutics Unit, Istituto Nazionale Tumori IRCCS Fondazione “G. Pascale”, Naples, Italy
| | - Diana Giannarelli
- Clinical Trial Center, Biostatistics and Bioinformatics Unit, Scientific Direction, Istituti di Ricovero e Cura a Carattere Scientifico (IRCCS) Regina Elena National Cancer Institute, Rome, Italy
| | - Grazia D’Angelo
- Melanoma, Cancer Immunotherapy, and Development Therapeutics Unit, Istituto Nazionale Tumori IRCCS Fondazione “G. Pascale”, Naples, Italy
| | - Anne Lise Ferrara
- Department of Translational Medical Sciences (DiSMeT), University of Naples Federico II, Naples, Italy
- Center for Basic and Clinical Immunology Research, Interdipartimental Center for basic and Clinical Immunology Research (CISI), University of Naples Federico II, Naples, Italy
- World Allergy Organization (WAO) Center of Excellence, University of Naples Federico II, Naples, Italy
- Institute of Experimental Endocrinology and Oncology, Istituto per l'Endocrinologia e l'Oncologia Sperimentale (IEOS), National Research Council (CNR), Naples, Italy
| | - Stefania Loffredo
- Department of Translational Medical Sciences (DiSMeT), University of Naples Federico II, Naples, Italy
- Center for Basic and Clinical Immunology Research, Interdipartimental Center for basic and Clinical Immunology Research (CISI), University of Naples Federico II, Naples, Italy
- World Allergy Organization (WAO) Center of Excellence, University of Naples Federico II, Naples, Italy
- Institute of Experimental Endocrinology and Oncology, Istituto per l'Endocrinologia e l'Oncologia Sperimentale (IEOS), National Research Council (CNR), Naples, Italy
| | - Gilda Varricchi
- Department of Translational Medical Sciences (DiSMeT), University of Naples Federico II, Naples, Italy
- Center for Basic and Clinical Immunology Research, Interdipartimental Center for basic and Clinical Immunology Research (CISI), University of Naples Federico II, Naples, Italy
- World Allergy Organization (WAO) Center of Excellence, University of Naples Federico II, Naples, Italy
- Institute of Experimental Endocrinology and Oncology, Istituto per l'Endocrinologia e l'Oncologia Sperimentale (IEOS), National Research Council (CNR), Naples, Italy
| | - Vito Vanella
- Melanoma, Cancer Immunotherapy, and Development Therapeutics Unit, Istituto Nazionale Tumori IRCCS Fondazione “G. Pascale”, Naples, Italy
| | - Lucia Festino
- Melanoma, Cancer Immunotherapy, and Development Therapeutics Unit, Istituto Nazionale Tumori IRCCS Fondazione “G. Pascale”, Naples, Italy
| | - Paolo Antonio Ascierto
- Melanoma, Cancer Immunotherapy, and Development Therapeutics Unit, Istituto Nazionale Tumori IRCCS Fondazione “G. Pascale”, Naples, Italy
| | - Maria Rosaria Galdiero
- Department of Translational Medical Sciences (DiSMeT), University of Naples Federico II, Naples, Italy
- Center for Basic and Clinical Immunology Research, Interdipartimental Center for basic and Clinical Immunology Research (CISI), University of Naples Federico II, Naples, Italy
- World Allergy Organization (WAO) Center of Excellence, University of Naples Federico II, Naples, Italy
- Institute of Experimental Endocrinology and Oncology, Istituto per l'Endocrinologia e l'Oncologia Sperimentale (IEOS), National Research Council (CNR), Naples, Italy
- *Correspondence: Maria Rosaria Galdiero,
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179
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Zhang M, Wang Z, Shao Y, Zhao Y, Liu Z. Complement-Opsonized NIR-IIb Emissive Immunotracers for Dynamically Monitoring Neutrophils in Inflammation-Related Diseases. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2203477. [PMID: 35793262 DOI: 10.1002/adma.202203477] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2022] [Revised: 06/29/2022] [Indexed: 06/15/2023]
Abstract
Real-time monitoring of neutrophil dynamics is crucial for timely diagnosis and effective treatment of inflammation-related diseases, which requires a reliable tracer for in vivo tracking of neutrophils. However, immunotracers for neutrophils are extremely limited because of the difficulty in labeling the cells. Inspired by the natural biological function of the complement system, a strategy of enhancing the complement C3 opsonization of lanthanide-doped nanoparticles (LnNPs) by modulating their surface chemistry, thus developing a near infrared-IIb emissive nanotracer for neutrophils, is reported herein. Four kinds of surface-modified LnNPs are fabricated, among which phospholipids DOPG-modified LnNPs (LnNPs@PG) with weak antifouling ability and hydroxyl groups adsorb more complement C3 proteins and form covalent linkages with C3b active fragments under inflammation conditions, inducing enhanced complement C3 opsonization. Therefore, LnNPs@PG with enhanced complement C3 opsonization are capable of efficiently labeling inflammation-stimulated neutrophils in vivo through complement-receptors-mediated phagocytosis and achieve dynamic monitoring neutrophils during cutaneous wound healing and cerebral ischemia/reperfusion.
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Affiliation(s)
- Meng Zhang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Zijun Wang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Yunlong Shao
- Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry and Chemistry Engineering, Beijing University of Technology, Beijing, 100124, China
| | - Yaoyao Zhao
- Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry and Chemistry Engineering, Beijing University of Technology, Beijing, 100124, China
| | - Zhihong Liu
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
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180
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Salvianolic Acid A Protects against Lipopolysaccharide-Induced Acute Lung Injury by Inhibiting Neutrophil NETosis. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:7411824. [PMID: 35910849 PMCID: PMC9334034 DOI: 10.1155/2022/7411824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 06/21/2022] [Accepted: 06/26/2022] [Indexed: 11/24/2022]
Abstract
Salvianolic acid A (SAA) is one of bioactive polyphenol extracted from a Salvia miltiorrhiza (Danshen), which was widely used to treat cardiovascular disease in traditional Chinese medicine. SAA has been reported to be protective in cardiovascular disease and ischemia injury, with anti-inflammatory and antioxidative effect, but its role in acute lung injury (ALI) is still unknown. In this study, we sought to investigate the therapeutic effects of SAA in a murine model of lipopolysaccharide- (LPS-) induced ALI. The optimal dose of SAA was determined by comparing the attenuation of lung injury score after administration of SAA at three different doses (low, 5 mg/kg; medium, 10 mg/kg; and, high 15 mg/kg). Dexamethasone (DEX) was used as a positive control for SAA. Here, we showed that the therapeutic effect of SAA (10 mg/kg) against LPS-induced pathologic injury in the lungs was comparable to DEX. SAA and DEX attenuated the increased W/D ratio and the protein level, counts of total cells and neutrophils, and cytokine levels in the BALF of ALI mice similarly. The oxidative stress was also relieved by SAA and DEX according to the superoxide dismutase and malondialdehyde. NET level in the lungs was elevated in the injured lung while SAA and DEX reduced it significantly. LPS induced phosphorylation of Src, Raf, MEK, and ERK in the lungs, which was inhibited by SAA and DEX. NET level and phosphorylation level of Src/Raf/MEK/ERK pathway in the neutrophils from acute respiratory distress syndrome (ARDS) patients were also inhibited by SAA and DEX in vitro, but the YEEI peptide reversed the protective effect of SAA completely. The inhibition of NET release by SAA was also reversed by YEEI peptide in LPS-challenged neutrophils from healthy volunteers. Our data demonstrated that SAA ameliorated ALI via attenuating inflammation, oxidative stress, and neutrophil NETosis. The mechanism of such protective effect might involve the inhibition of Src activation.
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181
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Sewnath CA, Behrens LM, van Egmond M. Targeting myeloid cells with bispecific antibodies as novel immunotherapies of cancer. Expert Opin Biol Ther 2022; 22:983-995. [PMID: 35854649 DOI: 10.1080/14712598.2022.2098675] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
INTRODUCTION Most bispecific antibody (BsAb) therapies focus on stimulating the adaptive immune system, in particular T cells, to promote tumor cell killing. Another method to promote tumor eradication is through the engagement of myeloid cells, including macrophages and neutrophils, which are abundantly present and possess intrinsic cytotoxic mechanisms for tumor cell killing, making them interesting effector cells to recruit for BsAb therapy. AREAS COVERED In this review, we describe the evolving knowledge of the role of macrophages and neutrophils in cancer in scientific literature. Moreover, we address the BsAbs that have been developed over the years to recruit these cell types as effector cells in immunotherapy of cancer. This includes the discussion of BsAbs that target Fc receptors (i.e. FcγR and FcαRI) to induce antibody-dependent cellular phagocytosis (ADCP) by macrophages or trogoptosis via neutrophils, as well as BsAbs that interfere with checkpoint inhibition, including the SIRPα-CD47 pathway. EXPERT OPINION Elucidating the complexity of macrophage and neutrophil heterogeneity in cancer may help to specifically enlist the cytotoxic ability of these cells through targeting Fc receptors and checkpoint pathways, which may further enhance anti-cancer immunity.
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Affiliation(s)
- Celine An Sewnath
- Department of Molecular Cell Biology and Immunology, Amsterdam UMC, Vrije Universiteit Amsterdam De Boelelaan, Amsterdam, The Netherlands.,Cancer Biology and Immunology Program, Cancer Centre Amsterdam, Amsterdam, The Netherlands.,Cancer Immunology Program, Amsterdam Institute for Infection and Immunity, Amsterdam, The Netherlands
| | - Leonie M Behrens
- Department of Molecular Cell Biology and Immunology, Amsterdam UMC, Vrije Universiteit Amsterdam De Boelelaan, Amsterdam, The Netherlands.,Cancer Biology and Immunology Program, Cancer Centre Amsterdam, Amsterdam, The Netherlands.,Cancer Immunology Program, Amsterdam Institute for Infection and Immunity, Amsterdam, The Netherlands
| | - Marjolein van Egmond
- Department of Molecular Cell Biology and Immunology, Amsterdam UMC, Vrije Universiteit Amsterdam De Boelelaan, Amsterdam, The Netherlands.,Cancer Biology and Immunology Program, Cancer Centre Amsterdam, Amsterdam, The Netherlands.,Cancer Immunology Program, Amsterdam Institute for Infection and Immunity, Amsterdam, The Netherlands.,Department of Surgery, Amsterdam UMC, Vrije Universiteit Amsterdam De Boelelaan, Amsterdam, The Netherlands
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182
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Wang G, Wang J, Niu C, Zhao Y, Wu P. Neutrophils: New Critical Regulators of Glioma. Front Immunol 2022; 13:927233. [PMID: 35860278 PMCID: PMC9289230 DOI: 10.3389/fimmu.2022.927233] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2022] [Accepted: 06/06/2022] [Indexed: 11/22/2022] Open
Abstract
In cancer, neutrophils are an important part of the tumour microenvironment (TME). Previous studies have shown that circulating and infiltrating neutrophils are associated with malignant progression and immunosuppression in gliomas. However, recent studies have shown that neutrophils have an antitumour effect. In this review, we focus on the functional roles of neutrophils in the circulation and tumour sites in patients with glioma. The mechanisms of neutrophil recruitment, immunosuppression and the differentiation of neutrophils are discussed. Finally, the potential of neutrophils as clinical biomarkers and therapeutic targets is highlighted. This review can help us gain a deeper and systematic understanding of the role of neutrophils, and provide new insights for treatment in gliomas.
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Affiliation(s)
- Guanyu Wang
- Department of Neurosurgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Jinpeng Wang
- Department of Urology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Chaoshi Niu
- Department of Neurosurgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
- Anhui Provincial Stereotactic Neurosurgical Institute, Hefei, China
- Anhui Province Key Laboratory of Brain Function and Brain Disease, Hefei, China
- Anhui Provincial Clinical Research Center for Neurosurgical Disease, Hefei, China
- *Correspondence: Pengfei Wu, ; Yan Zhao, ; Chaoshi Niu,
| | - Yan Zhao
- Department of Neurosurgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
- *Correspondence: Pengfei Wu, ; Yan Zhao, ; Chaoshi Niu,
| | - Pengfei Wu
- Department of Neurosurgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
- Anhui Provincial Stereotactic Neurosurgical Institute, Hefei, China
- Anhui Province Key Laboratory of Brain Function and Brain Disease, Hefei, China
- Anhui Provincial Clinical Research Center for Neurosurgical Disease, Hefei, China
- Anhui Province Key Laboratory of Translational Cancer Research, Bengbu Medical College, Bengbu, China
- *Correspondence: Pengfei Wu, ; Yan Zhao, ; Chaoshi Niu,
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183
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Afonina IS, Hoffmann E. Infection and immunity: ‘There Are Things Out There You (Don't) Need To Know About’. FEBS J 2022; 289:3920-3925. [DOI: 10.1111/febs.16569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Accepted: 06/30/2022] [Indexed: 11/28/2022]
Affiliation(s)
- Inna S. Afonina
- Unit of Molecular Signal Transduction in Inflammation VIB‐UGent Center for Inflammation Research Ghent Belgium
- Department of Biomedical Molecular Biology Ghent University Belgium
| | - Eik Hoffmann
- Institute Pasteur Lille Center for Infection and Immunity of Lille (CIIL) France
- European Regimen Accelerator for Tuberculosis (ERA4TB), Innovative Medicines Initiative 2 Joint Undertaking (JU no. 853989)
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184
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Kang SH, Ham HY, Hong CW, Song DK. Glycine induces enhancement of bactericidal activity of neutrophils. THE KOREAN JOURNAL OF PHYSIOLOGY & PHARMACOLOGY 2022; 26:229-238. [PMID: 35766001 PMCID: PMC9247710 DOI: 10.4196/kjpp.2022.26.4.229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 03/30/2022] [Accepted: 04/13/2022] [Indexed: 11/21/2022]
Abstract
Severe bacterial infections are frequently accompanied by depressed neutrophil functions. Thus, agents that increase the microbicidal activity of neutrophils could add to a direct antimicrobial therapy. Lysophosphatidylcholine augments neutrophil bactericidal activity via the glycine (Gly)/glycine receptor (GlyR) α2/TRPM2/p38 mitogen-activated protein kinase (MAPK) pathway. However, the direct effect of glycine on neutrophil bactericidal activity was not reported. In this study, the effect of glycine on neutrophil bactericidal activity was examined. Glycine augmented bactericidal activity of human neutrophils (EC50 = 238 μM) in a strychnine (a GlyR antagonist)-sensitive manner. Glycine augmented bacterial clearance in mice, which was also blocked by strychnine (0.4 mg/kg, s.c.). Glycine enhanced NADPH oxidase-mediated reactive oxygen species (ROS) production and TRPM2-mediated [Ca2+]i increase in neutrophils that had taken up E. coli. Glycine augmented Lucifer yellow uptake (fluid-phase pinocytosis) and azurophil granule-phagosome fusion in neutrophils that had taken up E. coli in an SB203580 (a p38 MAPK inhibitor)-sensitive manner. These findings indicate that glycine augments neutrophil microbicidal activity by enhancing azurophil granule-phagosome fusion via the GlyRα2/ROS/calcium/p38 MAPK pathway. We suggest that glycine could be a useful agent for increasing neutrophil bacterial clearance.
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Affiliation(s)
- Shin-Hae Kang
- Department of Pharmacology, College of Medicine, Hallym University, Chuncheon 24252, Korea
| | - Hwa-Yong Ham
- Department of Pharmacology, College of Medicine, Hallym University, Chuncheon 24252, Korea
| | - Chang-Won Hong
- Department of Physiology, School of Medicine, Kyungpook National University, Daegu 41944, Korea
| | - Dong-Keun Song
- Department of Pharmacology, College of Medicine, Hallym University, Chuncheon 24252, Korea
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185
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Liu Y, Song R, Zhao L, Lu Z, Li Y, Zhan X, Lu F, Yang J, Niu Y, Cao X. m 6A demethylase ALKBH5 is required for antibacterial innate defense by intrinsic motivation of neutrophil migration. Signal Transduct Target Ther 2022; 7:194. [PMID: 35764614 PMCID: PMC9240034 DOI: 10.1038/s41392-022-01020-z] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Revised: 05/05/2022] [Accepted: 05/06/2022] [Indexed: 12/29/2022] Open
Abstract
Neutrophil migration into the site of infection is necessary for antibacterial innate defense, whereas impaired neutrophil migration may result in excessive inflammation and even sepsis. The neutrophil migration directed by extracellular signals such as chemokines has been extensively studied, yet the intrinsic mechanism for determining neutrophil ability to migrate needs further investigation. N6-methyladenosine (m6A) RNA modification is important in immunity and inflammation, and our preliminary data indicate downregulation of RNA m6A demethylase alkB homolog 5 (ALKBH5) in neutrophils during bacterial infection. Whether m6A modification and ALKBH5 might intrinsically modulate neutrophil innate response remain unknown. Here we report that ALKBH5 is required for antibacterial innate defense by enhancing intrinsic ability of neutrophil migration. We found that deficiency of ALKBH5 increased mortality of mice with polymicrobial sepsis induced by cecal ligation and puncture (CLP), and Alkbh5-deficient CLP mice exhibited higher bacterial burden and massive proinflammatory cytokine production in the peritoneal cavity and blood because of less neutrophil migration. Alkbh5-deficient neutrophils had lower CXCR2 expression, thus exhibiting impaired migration toward chemokine CXCL2. Mechanistically, ALKBH5-mediated m6A demethylation empowered neutrophils with high migration capability through altering the RNA decay, consequently regulating protein expression of its targets, neutrophil migration-related molecules, including increased expression of neutrophil migration-promoting CXCR2 and NLRP12, but decreased expression of neutrophil migration-suppressive PTGER4, TNC, and WNK1. Our findings reveal a previously unknown role of ALKBH5 in imprinting migration-promoting transcriptome signatures in neutrophils and intrinsically promoting neutrophil migration for antibacterial defense, highlighting the potential application of targeting neutrophil m6A modification in controlling bacterial infections.
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Affiliation(s)
- Yang Liu
- Department of Immunology, Institute of Basic Medical Sciences, Peking Union Medical College, Chinese Academy of Medical Sciences, 100005, Beijing, China. .,Frontier Research Center for Cell Response, Institute of Immunology, College of Life Sciences, Nankai University, 300071, Tianjin, China.
| | - Renjie Song
- Department of Immunology, Institute of Basic Medical Sciences, Peking Union Medical College, Chinese Academy of Medical Sciences, 100005, Beijing, China
| | - Lu Zhao
- Department of Immunology, Institute of Basic Medical Sciences, Peking Union Medical College, Chinese Academy of Medical Sciences, 100005, Beijing, China
| | - Zhike Lu
- School of Life Sciences, Westlake University, 310024, Hangzhou, China
| | - Yini Li
- School of Life Sciences, Westlake University, 310024, Hangzhou, China
| | - Xinyi Zhan
- Department of Immunology, Institute of Basic Medical Sciences, Peking Union Medical College, Chinese Academy of Medical Sciences, 100005, Beijing, China
| | - Fengjiao Lu
- Department of Immunology, Institute of Basic Medical Sciences, Peking Union Medical College, Chinese Academy of Medical Sciences, 100005, Beijing, China
| | - Jiang Yang
- Department of Immunology, Institute of Basic Medical Sciences, Peking Union Medical College, Chinese Academy of Medical Sciences, 100005, Beijing, China
| | - Yamei Niu
- Department of Pathology, Institute of Basic Medical Sciences, Peking Union Medical College, Chinese Academy of Medical Sciences, 100005, Beijing, China
| | - Xuetao Cao
- Department of Immunology, Institute of Basic Medical Sciences, Peking Union Medical College, Chinese Academy of Medical Sciences, 100005, Beijing, China. .,Frontier Research Center for Cell Response, Institute of Immunology, College of Life Sciences, Nankai University, 300071, Tianjin, China.
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186
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Piatek P, Namiecinska M, Lewkowicz N, Kulińska-Michalska M, Jabłonowski Z, Matysiak M, Dulska J, Michlewska S, Wieczorek M, Lewkowicz P. Changes Within H3K4me3-Marked Histone Reveal Molecular Background of Neutrophil Functional Plasticity. Front Immunol 2022; 13:906311. [PMID: 35757755 PMCID: PMC9229595 DOI: 10.3389/fimmu.2022.906311] [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: 03/29/2022] [Accepted: 05/16/2022] [Indexed: 11/13/2022] Open
Abstract
Neutrophils are a heterogenous population capable of both antimicrobial functions and suppressor ones, however, no specific pattern of transcription factors controlling this plasticity has been identified. We observed rapid changes in the neutrophil status after stimulation with LPS, pre-activating concentration of TNF-α, or IL-10. Chromatin immunoprecipitation sequencing (ChIP-Seq) analysis of histone H3K4me3 allowed us to identify various transcriptional start sites (TSSs) associated with plasticity and heterogeneity of human neutrophils. Gene Ontology analysis demonstrated great variation within target genes responsible for neutrophil activation, cytokine production, apoptosis, histone remodelling as well as NF-κB transcription factor pathways. These data allowed us to assign specific target genes positioned by H3K4me3-marked histone with a different pattern of gene expression related to NF-κB pathways, apoptosis, and a specific profile of cytokines/chemokines/growth factors realised by neutrophils stimulated by LPS, IL-10, or TNF-α. We discovered IL-10-induced apoptotic neutrophils being transcriptionally active cells capable of switching the profile of cytokines/chemokines/growth factors desired in resolving inflammation via non-canonical NF-κB pathway with simultaneous inhibition of canonical NF-κB pathway. As apoptotic/suppressive neutrophils induced by IL-10 via positioning genes within H3K4me3-marked histone were transcriptionally active, newly described DNA binding sites can be considered as potential targets for immunotherapy.
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Affiliation(s)
- Paweł Piatek
- Department of Immunogenetics, Medical University of Lodz, Lodz, Poland
| | | | - Natalia Lewkowicz
- Department of Periodontology and Oral Mucosal Diseases, Medical University of Lodz, Lodz, Poland
| | | | | | - Mariola Matysiak
- Department of Neurology, Medical University of Lodz, Lodz, Poland
| | | | - Sylwia Michlewska
- Laboratory of Microscopic Imaging and Specialized Biological Techniques, Faculty of Biology and Environmental Protection, University of Lodz, Lodz, Poland
| | - Marek Wieczorek
- Department of Neurobiology, Faculty of Biology and Environmental Protection, University of Lodz, Lodz, Poland
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187
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Arya SB, Chen S, Jordan-Javed F, Parent CA. Ceramide-rich microdomains facilitate nuclear envelope budding for non-conventional exosome formation. Nat Cell Biol 2022; 24:1019-1028. [PMID: 35739317 DOI: 10.1038/s41556-022-00934-8] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Accepted: 05/05/2022] [Indexed: 02/06/2023]
Abstract
Neutrophils migrating towards chemoattractant gradients amplify their recruitment range by releasing the secondary chemoattractant leukotriene B4 (LTB4) refs. 1,2. We previously demonstrated that LTB4 and its synthesizing enzymes, 5-lipoxygenase (5-LO), 5-LO activating protein (FLAP) and leukotriene A4 hydrolase, are packaged and released in exosomes3. Here we report that the biogenesis of the LTB4-containing exosomes originates at the nuclear envelope (NE) of activated neutrophils. We show that the neutral sphingomyelinase 1 (nSMase1)-mediated generation of ceramide-enriched lipid-ordered microdomains initiates the clustering of the LTB4-synthesizing enzymes on the NE. We isolated and analysed exosomes from activated neutrophils and established that the FLAP/5-LO-positive exosome population is distinct from that of the CD63-positive exosome population. Furthermore, we observed a strong co-localization between ALIX and FLAP at the periphery of nuclei and within cytosolic vesicles. We propose that the initiation of NE curvature and bud formation is mediated by nSMase1-dependent ceramide generation, which leads to FLAP and ALIX recruitment. Together, these observations elucidate the mechanism for LTB4 secretion and identify a non-conventional pathway for exosome generation.
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Affiliation(s)
- Subhash B Arya
- Department of Pharmacology, University of Michigan Medical School, Ann Arbor, MI, USA.,Life Sciences Institute, University of Michigan, Ann Arbor, MI, USA
| | - Song Chen
- Department of Pharmacology, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Fatima Jordan-Javed
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Carole A Parent
- Department of Pharmacology, University of Michigan Medical School, Ann Arbor, MI, USA. .,Life Sciences Institute, University of Michigan, Ann Arbor, MI, USA. .,Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI, USA. .,Rogel Cancer Center, University of Michigan, Ann Arbor, MI, USA.
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188
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Mazzitelli I, Bleichmar L, Melucci C, Gerber PP, Toscanini A, Cuestas ML, Diaz FE, Geffner J. High Salt Induces a Delayed Activation of Human Neutrophils. Front Immunol 2022; 13:831844. [PMID: 35720394 PMCID: PMC9204211 DOI: 10.3389/fimmu.2022.831844] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Accepted: 05/11/2022] [Indexed: 01/18/2023] Open
Abstract
High salt (NaCl) concentrations are found in a number of tissues under physiological and pathological conditions. Here, we analyzed the effects induced by high salt on the function of human neutrophils. The culture of neutrophils in medium supplemented with high salt (50 mM NaCl) for short periods (30-120 min) inhibited the ability of conventional agonists to induce the production of IL-8 and the activation of respiratory burst. By contrast, exposure to high salt for longer periods (6-18 h) resulted in the activation of neutrophils revealed by the production of high levels of IL-8, the activation of the respiratory burst, and a marked synergistic effect on the production of TNF-α induced by LPS. Increasing osmolarity of the culture medium by the addition of sorbitol or mannitol (100 mM) was shown to be completely unable to stimulate neutrophil responses, suggesting that high sodium but not an increased osmolarity mediates the activation on neutrophils responses. A similar biphasic effect was observed when the function of monocytes was analyzed. Short term exposure to high salt suppressed IL-8 and TNF-α production induced by LPS while culture for longer periods triggered the production of IL-8 but not TNF-α in the absence of LPS stimulation. Contradictory results have been published regarding how high salt modulates neutrophil function. Our results suggest that the modulation of neutrophil function by high salt is strongly dependent on the exposure time.
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Affiliation(s)
- Ignacio Mazzitelli
- Instituto de Investigaciones Biomédicas en Retrovirus y SIDA (INBIRS), Consejo Nacional de Investigaciones Cientìficas y Tecnològicas (CONICET), Facultad de Medicina, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Lucía Bleichmar
- Instituto de Investigaciones Biomédicas en Retrovirus y SIDA (INBIRS), Consejo Nacional de Investigaciones Cientìficas y Tecnològicas (CONICET), Facultad de Medicina, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Claudia Melucci
- Instituto de Investigaciones Biomédicas en Retrovirus y SIDA (INBIRS), Consejo Nacional de Investigaciones Cientìficas y Tecnològicas (CONICET), Facultad de Medicina, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Pehuén Pereyra Gerber
- Cambridge Institute for Therapeutic Immunology and Infectious Disease (CITIID), Jeffrey Cheah Biomedical Centre, University of Cambridge, Cambridge, United Kingdom
| | - Agustina Toscanini
- Microbiología y Parasitología Médica
Instituto de Investigaciones en Microbiología y Parasitología Médica (IMPAM), Consejo Nacional de Investigaciones Cientìficas y Tecnològicas (CONICET), Facultad de Medicina, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - María Luján Cuestas
- Microbiología y Parasitología Médica
Instituto de Investigaciones en Microbiología y Parasitología Médica (IMPAM), Consejo Nacional de Investigaciones Cientìficas y Tecnològicas (CONICET), Facultad de Medicina, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Fernando Erra Diaz
- Instituto de Investigaciones Biomédicas en Retrovirus y SIDA (INBIRS), Consejo Nacional de Investigaciones Cientìficas y Tecnològicas (CONICET), Facultad de Medicina, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Jorge Geffner
- Instituto de Investigaciones Biomédicas en Retrovirus y SIDA (INBIRS), Consejo Nacional de Investigaciones Cientìficas y Tecnològicas (CONICET), Facultad de Medicina, Universidad de Buenos Aires, Buenos Aires, Argentina
- *Correspondence: Jorge Geffner,
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189
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Entenberg D, Filippou PS, Karagiannis GS. Emerging Roles of Immune Cells in Cancer Development and Progression. Cancers (Basel) 2022; 14:cancers14112642. [PMID: 35681622 PMCID: PMC9179853 DOI: 10.3390/cancers14112642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Accepted: 05/18/2022] [Indexed: 11/16/2022] Open
Abstract
Immune cells are a major constituent of the tumor microenvironment, and participate in interactions with tumor cells to promote the acquisition of critical hallmarks of cancer [...].
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Affiliation(s)
- David Entenberg
- Department of Pathology, Albert Einstein College of Medicine/Montefiore Medical Center, Bronx, New York, NY 10461, USA
- Integrated Imaging Program, Albert Einstein College of Medicine/Montefiore Medical Center, Bronx, New York, NY 10461, USA
- Gruss-Lipper Biophotonics Center, Albert Einstein College of Medicine/Montefiore Medical Center, Bronx, New York, NY 10461, USA
- Tumor Microenvironment and Metastasis Program, Albert Einstein Cancer Center, Bronx, New York, NY 10461, USA
- Correspondence: (D.E.); (P.S.F.); (G.S.K.)
| | - Panagiota S. Filippou
- School of Health & Life Sciences, Teesside University, Middlesbrough TS1 3BX, UK
- National Horizons Centre, Teesside University, 38 John Dixon Ln, Darlington DL1 1HG, UK
- Correspondence: (D.E.); (P.S.F.); (G.S.K.)
| | - George S. Karagiannis
- Integrated Imaging Program, Albert Einstein College of Medicine/Montefiore Medical Center, Bronx, New York, NY 10461, USA
- Gruss-Lipper Biophotonics Center, Albert Einstein College of Medicine/Montefiore Medical Center, Bronx, New York, NY 10461, USA
- Tumor Microenvironment and Metastasis Program, Albert Einstein Cancer Center, Bronx, New York, NY 10461, USA
- Department of Microbiology & Immunology, Albert Einstein College of Medicine, Bronx, New York, NY 10461, USA
- Correspondence: (D.E.); (P.S.F.); (G.S.K.)
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190
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Prat-Luri B, Neal C, Passelli K, Ganga E, Amore J, Firmino-Cruz L, Petrova TV, Müller AJ, Tacchini-Cottier F. The C5a-C5aR1 complement axis is essential for neutrophil recruitment to draining lymph nodes via high endothelial venules in cutaneous leishmaniasis. Cell Rep 2022; 39:110777. [PMID: 35508133 DOI: 10.1016/j.celrep.2022.110777] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 02/24/2022] [Accepted: 04/11/2022] [Indexed: 01/02/2023] Open
Abstract
Neutrophils are specialized innate immune cells known for their ability to fight pathogens. However, the mechanisms of neutrophil trafficking to lymph nodes are not fully clear. Using a murine model of dermal infection with Leishmania parasites, we observe a transient neutrophil influx in draining lymph nodes despite sustained recruitment to the infection site. Cell-tracking experiments, together with intravital two-photon microscopy, indicate that neutrophil recruitment to draining lymph nodes occurs minimally through lymphatics from the infected dermis, but mostly through blood vessels via high endothelial venules. Mechanistically, neutrophils do not respond to IL-1β or macrophage-derived molecules. Instead, they are guided by the C5a-C5aR1 axis, using L-selectin and integrins, to extravasate into the draining lymph node parenchyma. We also report that C5, the C5a precursor, is locally produced in the draining lymph node by lymphatic endothelial cells. Our data establish and detail organ-specific mechanisms of neutrophil trafficking.
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Affiliation(s)
- Borja Prat-Luri
- Department of Immunobiology, WHO Collaborative Center for Research and Training in Immunology, University of Lausanne, Epalinges, Switzerland.
| | - Christopher Neal
- Department of Immunobiology, WHO Collaborative Center for Research and Training in Immunology, University of Lausanne, Epalinges, Switzerland
| | - Katiuska Passelli
- Department of Immunobiology, WHO Collaborative Center for Research and Training in Immunology, University of Lausanne, Epalinges, Switzerland
| | - Emma Ganga
- Department of Immunobiology, WHO Collaborative Center for Research and Training in Immunology, University of Lausanne, Epalinges, Switzerland
| | - Jonas Amore
- Otto-von-Guericke-University Magdeburg and Helmholtz Centre for Infection Research Braunschweig, Magdeburg, Germany
| | - Luan Firmino-Cruz
- Department of Immunobiology, WHO Collaborative Center for Research and Training in Immunology, University of Lausanne, Epalinges, Switzerland
| | - Tatiana V Petrova
- Department of Oncology, University of Lausanne, Epalinges, Switzerland; Ludwig Institute for Cancer Research Lausanne, Epalinges, Switzerland
| | - Andreas J Müller
- Otto-von-Guericke-University Magdeburg and Helmholtz Centre for Infection Research Braunschweig, Magdeburg, Germany
| | - Fabienne Tacchini-Cottier
- Department of Immunobiology, WHO Collaborative Center for Research and Training in Immunology, University of Lausanne, Epalinges, Switzerland.
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191
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Liu R, Luo C, Pang Z, Zhang J, Ruan S, Wu M, Wang L, Sun T, Li N, Han L, Shi J, Huang Y, Guo W, Peng S, Zhou W, Gao H. Advances of nanoparticles as drug delivery systems for disease diagnosis and treatment. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.05.032] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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192
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Induction of functional neutrophils from mouse fibroblasts by thymidine through enhancement of Tet3 activity. Cell Mol Immunol 2022; 19:619-633. [PMID: 35301470 PMCID: PMC9061759 DOI: 10.1038/s41423-022-00842-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 01/27/2022] [Indexed: 11/08/2022] Open
Abstract
Neutrophils are derived from bone marrow hematopoietic stem cells (HSCs) and are the largest population among circulating white blood cells in humans, acting as the first line of defense against invading pathogens. Whether neutrophils can be generated by transdifferentiation strategies is unknown. Here, we show that thymidine induces the conversion of mouse fibroblasts to neutrophils. Induced neutrophils (iNeus) showed antibacterial effects and did not undergo malignant transformation in vivo. Importantly, iNeu transplantation cured neutropenia in mice in vivo. Mechanistically, thymidine mediates iNeu conversion by enhancing Tet3 activity. Tet3 initiates the expression of the neutrophil fate decision factors Cebpδ and Rfx1 that drive the transdifferentiation of mouse fibroblasts to neutrophils. Therefore, the induction of functional neutrophils by chemicals may provide a potential therapeutic strategy for patients with neutropenia patients and infectious diseases.Fibroblasts; Neutrophils; Thymidine; Transdifferentiation; Tet3.
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193
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McCrae KR, Swaidani S, Diaz-Montero CM, Khorana AA. Old is new again: emergence of thromboembolic complications in cancer patients on immunotherapy. Thromb Res 2022; 213:S51-S57. [PMID: 36061419 PMCID: PMC9435305 DOI: 10.1016/j.thromres.2022.01.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Cancer immunotherapy has emerged as one of the most important new treatments for cancer in many years, moving rapidly to front-line therapy for several cancers. Cancer immunotherapy is based on treatment with immune checkpoint inhibitors (ICI), which are monoclonal antibodies directed toward immunoregulatory proteins including PD-1, PD-L1 and CTLA-4. ICI inhibit interactions between these proteins and their ligands, disabling physiologic immune regulatory networks and enhancing anti-tumor immunity. However, since the immune response cannot be directed specifically to the tumor, ICI are associated with immune-related adverse events (irAEs) resulting from immune-mediated attack of normal tissues. We and others have reported a high incidence of thrombosis in patients treated with ICI, which may approach 20%. Given the rapidly increasing use of ICIs, it is clear that ICI-Associated Thrombosis (IAT) is a major emerging clinical problem. However, there is a remarkable knowledge gap concerning mechanisms of IAT. IAT may be a composite irAE resulting from activation of blood and vascular cells, leading to thromboinflammation. Cancer itself is an inflammatory disorder, and inducing further inflammation through ICI administration may stimulate procoagulant activity by multiple cell types. Moreover, some blood and vascular cells express ICI target proteins. Here, we review the results of several studies describing the clinical manifestations of IAT, as well as our recent studies demonstrating that elevated levels of myeloid derived suppressor cells and inflammatory cytokines may serve as biomarkers of IAT. It is hoped that the concepts reviewed here may stimulate further research into this important clinical problem.
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Affiliation(s)
- Keith R McCrae
- Department of Hematology & Medical Oncology, Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH
- Department of Cardiovascular & Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, OH
| | - Shadi Swaidani
- Department of Cardiovascular & Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, OH
| | - C Marcela Diaz-Montero
- Center for Immunotherapy & Precision Immuno-Oncology, Lerner Research Institute, Cleveland Clinic, Cleveland, OH
| | - Alok A Khorana
- Department of Hematology & Medical Oncology, Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH
- Department of Cardiovascular & Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, OH
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194
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Lipid metabolism and neutrophil function. Cell Immunol 2022; 377:104546. [DOI: 10.1016/j.cellimm.2022.104546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 05/12/2022] [Accepted: 05/19/2022] [Indexed: 11/22/2022]
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195
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Farias-Jofre M, Romero R, Galaz J, Xu Y, Tao L, Demery-Poulos C, Arenas-Hernandez M, Bhatti G, Liu Z, Kawahara N, Kanninen T, Shaffer Z, Chaiworapongsa T, Theis KR, Tarca AL, Gomez-Lopez N. Pregnancy tailors endotoxin-induced monocyte and neutrophil responses in the maternal circulation. Inflamm Res 2022; 71:653-668. [PMID: 35445873 PMCID: PMC9021564 DOI: 10.1007/s00011-022-01569-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 03/24/2022] [Accepted: 03/25/2022] [Indexed: 01/29/2023] Open
Abstract
Objective To comprehensively characterize monocyte and neutrophil responses to E. coli and its product [lipopolysaccharide (LPS) or endotoxin] in vitro during pregnancy. Material or subjects Peripheral blood was collected from pregnant women during the third trimester (n = 20) and from non-pregnant women (n = 20). Methods The number, phagocytic activity, and reactive oxygen species (ROS) production of peripheral monocytes and neutrophils were investigated using flow cytometry. The phenotypes of peripheral monocytes and neutrophils after acute or chronic LPS stimulation were also determined using flow cytometry. Cytokine profiles were quantified for LPS-stimulated peripheral blood mononuclear cells (PBMCs) and a whole blood TruCulture® system using a multiplex immunoassay. Results Increased number, phagocytic activity, and ROS production capacity of monocytes and neutrophils were found in pregnant compared to non-pregnant women. Additionally, specific subsets of pro-inflammatory monocytes (IL-6+CD14+ or MIP-1α+CD14+ cells) and neutrophils (IL-1β+CD15+ or MIP-1β+CD15+ cells) were increased in pregnant women in response to acute LPS stimulation. Moreover, distinct subsets of intermediate-activated monocytes expressing CD142, IL-6, and IL-1RA were increased in pregnant women upon chronic LPS stimulation. Last, pregnant women displayed a different cytokine profile than non-pregnant women in LPS-stimulated PBMCs and in whole blood. Conclusions Pregnancy tailors the immune responses of circulating monocytes and neutrophils to endotoxin, a Gram-negative bacterial product. Supplementary Information The online version contains supplementary material available at 10.1007/s00011-022-01569-z.
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Affiliation(s)
- Marcelo Farias-Jofre
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS), Detroit, MI, 48201, USA.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, 275 E. Hancock, Detroit, MI, 48201, USA.,Division of Obstetrics and Gynecology, School of Medicine, Faculty of Medicine, Pontificia Universidad Catolica de Chile, 8330024, Santiago, Chile
| | - Roberto Romero
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS), Detroit, MI, 48201, USA. .,Department of Obstetrics and Gynecology, University of Michigan, Ann Arbor, MI, 48109, USA. .,Department of Epidemiology and Biostatistics, Michigan State University, East Lansing, Michigan, 48824, USA. .,Center for Molecular Medicine and Genetics, Wayne State University, Detroit, MI, 48201, USA. .,Detroit Medical Center, Detroit, MI, 48201, USA.
| | - Jose Galaz
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS), Detroit, MI, 48201, USA.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, 275 E. Hancock, Detroit, MI, 48201, USA.,Division of Obstetrics and Gynecology, School of Medicine, Faculty of Medicine, Pontificia Universidad Catolica de Chile, 8330024, Santiago, Chile
| | - Yi Xu
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS), Detroit, MI, 48201, USA.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, 275 E. Hancock, Detroit, MI, 48201, USA
| | - Li Tao
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS), Detroit, MI, 48201, USA.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, 275 E. Hancock, Detroit, MI, 48201, USA
| | - Catherine Demery-Poulos
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS), Detroit, MI, 48201, USA.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, 275 E. Hancock, Detroit, MI, 48201, USA
| | - Marcia Arenas-Hernandez
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS), Detroit, MI, 48201, USA.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, 275 E. Hancock, Detroit, MI, 48201, USA
| | - Gaurav Bhatti
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS), Detroit, MI, 48201, USA.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, 275 E. Hancock, Detroit, MI, 48201, USA
| | - Zhenjie Liu
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS), Detroit, MI, 48201, USA.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, 275 E. Hancock, Detroit, MI, 48201, USA
| | - Naoki Kawahara
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS), Detroit, MI, 48201, USA.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, 275 E. Hancock, Detroit, MI, 48201, USA
| | - Tomi Kanninen
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS), Detroit, MI, 48201, USA.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, 275 E. Hancock, Detroit, MI, 48201, USA
| | - Zachary Shaffer
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS), Detroit, MI, 48201, USA.,Department of Physiology, Wayne State University School of Medicine, Detroit, MI, 48201, USA
| | - Tinnakorn Chaiworapongsa
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS), Detroit, MI, 48201, USA.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, 275 E. Hancock, Detroit, MI, 48201, USA
| | - Kevin R Theis
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS), Detroit, MI, 48201, USA.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, 275 E. Hancock, Detroit, MI, 48201, USA.,Department of Biochemistry, Microbiology and Immunology, Wayne State University School of Medicine, Detroit, MI, 48201, USA
| | - Adi L Tarca
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS), Detroit, MI, 48201, USA.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, 275 E. Hancock, Detroit, MI, 48201, USA.,Department of Computer Science, Wayne State University College of Engineering, Detroit, MI, 48201, USA
| | - Nardhy Gomez-Lopez
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS), Detroit, MI, 48201, USA. .,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, 275 E. Hancock, Detroit, MI, 48201, USA. .,Department of Biochemistry, Microbiology and Immunology, Wayne State University School of Medicine, Detroit, MI, 48201, USA.
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196
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Li DD, Jawale CV, Zhou C, Lin L, Trevejo-Nunez GJ, Rahman SA, Mullet SJ, Das J, Wendell SG, Delgoffe GM, Lionakis MS, Gaffen SL, Biswas PS. Fungal sensing enhances neutrophil metabolic fitness by regulating antifungal Glut1 activity. Cell Host Microbe 2022; 30:530-544.e6. [PMID: 35316647 PMCID: PMC9026661 DOI: 10.1016/j.chom.2022.02.017] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 12/10/2021] [Accepted: 02/16/2022] [Indexed: 12/30/2022]
Abstract
Combating fungal pathogens poses metabolic challenges for neutrophils, key innate cells in anti-Candida albicans immunity, yet how host-pathogen interactions cause remodeling of the neutrophil metabolism is unclear. We show that neutrophils mediate renal immunity to disseminated candidiasis by upregulating glucose uptake via selective expression of glucose transporter 1 (Glut1). Mechanistically, dectin-1-mediated recognition of β-glucan leads to activation of PKCδ, which triggers phosphorylation, localization, and early glucose transport by a pool of pre-formed Glut1 in neutrophils. These events are followed by increased Glut1 gene transcription, leading to more sustained Glut1 accumulation, which is also dependent on the β-glucan/dectin-1/CARD9 axis. Card9-deficient neutrophils show diminished glucose incorporation in candidiasis. Neutrophil-specific Glut1-ablated mice exhibit increased mortality in candidiasis caused by compromised neutrophil phagocytosis, reactive oxygen species (ROS), and neutrophil extracellular trap (NET) formation. In human neutrophils, β-glucan triggers metabolic remodeling and enhances candidacidal function. Our data show that the host-pathogen interface increases glycolytic activity in neutrophils by regulating Glut1 expression, localization, and function.
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Affiliation(s)
- De-Dong Li
- Division of Rheumatology & Clinical Immunology, Department of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Chetan V Jawale
- Division of Rheumatology & Clinical Immunology, Department of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Chunsheng Zhou
- Division of Rheumatology & Clinical Immunology, Department of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Li Lin
- Division of Rheumatology & Clinical Immunology, Department of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Giraldina J Trevejo-Nunez
- Division of Infectious Diseases, Department of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Syed A Rahman
- Center for Systems Immunology, Departments of Immunology and Computational & Systems Biology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Steven J Mullet
- Department of Immunology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Jishnu Das
- Center for Systems Immunology, Departments of Immunology and Computational & Systems Biology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Stacy G Wendell
- Department of Immunology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Greg M Delgoffe
- Department of Pharmacology & Chemical Biology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Michail S Lionakis
- Fungal Pathogenesis Section, National Institute of Allergy and Infectious Diseases, Bethesda, MD, USA
| | - Sarah L Gaffen
- Division of Rheumatology & Clinical Immunology, Department of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Partha S Biswas
- Division of Rheumatology & Clinical Immunology, Department of Medicine, University of Pittsburgh, Pittsburgh, PA, USA.
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197
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Watanabe R, Hashimoto M. Aging-Related Vascular Inflammation: Giant Cell Arteritis and Neurological Disorders. Front Aging Neurosci 2022; 14:843305. [PMID: 35493934 PMCID: PMC9039280 DOI: 10.3389/fnagi.2022.843305] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2021] [Accepted: 03/22/2022] [Indexed: 12/16/2022] Open
Abstract
Aging is characterized by the functional decline of the immune system and constitutes the primary risk factor for infectious diseases, cardiovascular disorders, cancer, and neurodegenerative disorders. Blood vessels are immune-privileged sites and consist of endothelial cells, vascular smooth muscle cells, macrophages, dendritic cells, fibroblasts, and pericytes, among others. Aging also termed senescence inevitably affects blood vessels, making them vulnerable to inflammation. Atherosclerosis causes low-grade inflammation from the endothelial side; whereas giant cell arteritis (GCA) causes intense inflammation from the adventitial side. GCA is the most common autoimmune vasculitis in the elderly characterized by the formation of granulomas composed of T cells and macrophages in medium- and large-sized vessels. Recent studies explored the pathophysiology of GCA at unprecedented resolutions, and shed new light on cellular signaling pathways and metabolic fitness in wall-destructive T cells and macrophages. Moreover, recent reports have revealed that not only can cerebrovascular disorders, such as stroke and ischemic optic neuropathy, be initial or coexistent manifestations of GCA, but the same is true for dementia and neurodegenerative disorders. In this review, we first outline how aging affects vascular homeostasis. Subsequently, we review the updated pathophysiology of GCA and explain the similarities and differences between vascular aging and GCA. Then, we introduce the possible link between T cell aging, neurological aging, and GCA. Finally, we discuss therapeutic strategies targeting both senescence and vascular inflammation.
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198
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Mihlan M, Glaser KM, Epple MW, Lämmermann T. Neutrophils: Amoeboid Migration and Swarming Dynamics in Tissues. Front Cell Dev Biol 2022; 10:871789. [PMID: 35478973 PMCID: PMC9038224 DOI: 10.3389/fcell.2022.871789] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 03/03/2022] [Indexed: 01/02/2023] Open
Abstract
Neutrophils are key cells of our innate immune response with essential roles for eliminating bacteria and fungi from tissues. They are also the prototype of an amoeboid migrating leukocyte. As one of the first blood-recruited immune cell types during inflammation and infection, these cells can invade almost any tissue compartment. Once in the tissue, neutrophils undergo rapid shape changes and migrate at speeds higher than most other immune cells. They move in a substrate-independent manner in interstitial spaces and do not follow predetermined tissue paths. Instead, neutrophil navigation is largely shaped by the chemokine and chemoattractant milieu around them. This highlights the decisive role of attractant-sensing G-protein coupled receptors (GPCRs) and downstream molecular pathways for controlling amoeboid neutrophil movement in tissues. A diverse repertoire of cell-surface expressed GPCRs makes neutrophils the perfect sentinel cell type to sense and detect danger-associated signals released from wounds, inflamed interstitium, dying cells, complement factors or directly from tissue-invading microbes. Moreover, neutrophils release attractants themselves, which allows communication and coordination between individual cells of a neutrophil population. GPCR-mediated positive feedback mechanisms were shown to underlie neutrophil swarming, a population response that amplifies the recruitment of amoeboid migrating neutrophils to sites of tissue injury and infection. Here we discuss recent findings and current concepts that counteract excessive neutrophil accumulation and swarm formation. In particular, we will focus on negative feedback control mechanisms that terminate neutrophil swarming to maintain the delicate balance between tissue surveillance, host protection and tissue destruction.
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Affiliation(s)
- Michael Mihlan
- Max Planck Institute of Immunobiology and Epigenetics, Freiburg, Germany
| | - Katharina M. Glaser
- Max Planck Institute of Immunobiology and Epigenetics, Freiburg, Germany
- International Max Planck Research School for Immunobiology, Epigenetics and Metabolism (IMPRS-IEM), Freiburg, Germany
- Faculty of Biology, University of Freiburg, Freiburg, Germany
| | - Maximilian W. Epple
- Max Planck Institute of Immunobiology and Epigenetics, Freiburg, Germany
- International Max Planck Research School for Immunobiology, Epigenetics and Metabolism (IMPRS-IEM), Freiburg, Germany
- Faculty of Biology, University of Freiburg, Freiburg, Germany
| | - Tim Lämmermann
- Max Planck Institute of Immunobiology and Epigenetics, Freiburg, Germany
- *Correspondence: Tim Lämmermann,
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199
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Blanter M, Cambier S, De Bondt M, Vanbrabant L, Pörtner N, Abouelasrar Salama S, Metzemaekers M, Marques PE, Struyf S, Proost P, Gouwy M. Method Matters: Effect of Purification Technology on Neutrophil Phenotype and Function. Front Immunol 2022; 13:820058. [PMID: 35222394 PMCID: PMC8866851 DOI: 10.3389/fimmu.2022.820058] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Accepted: 01/19/2022] [Indexed: 12/14/2022] Open
Abstract
Neutrophils are the most abundant leukocytes in human blood and the first cells responding to infection and injury. Due to their limited ex vivo lifespan and the impossibility to cryopreserve or expand them in vitro, neutrophils need to be purified from fresh blood for immediate use in experiments. Importantly, neutrophil purification methods may artificially modify the phenotype and functional characteristics of the isolated cells. The aim of this study was to expose the effects of ‘classical’ density-gradient purification versus the more expensive but faster immunomagnetic isolation on neutrophil phenotype and functionality. We found that in the absence of inflammatory stimuli, density-gradient-derived neutrophils showed increased polarization responses as well as enhanced release of reactive oxygen species (ROS), neutrophil extracellular traps (NETs) and granular proteins compared to cells derived from immunomagnetic isolation, which yields mostly quiescent neutrophils. Upon exposure to pro-inflammatory mediators, immunomagnetic isolation-derived neutrophils were significantly more responsive in polarization, ROS production, phagocytosis, NETosis and degranulation assays, in comparison to density-gradient-derived cells. We found no difference in chemotactic response in Multiscreen and under-agarose migration assays, but Boyden assays showed reduced chemotaxis of immunomagnetic isolation-derived neutrophils. Finally, we confirmed that density-gradient purification induces artificial activation of neutrophils, evidenced by e.g. higher expression of CD66b, formyl peptide receptor 1 (FPR1) and CD35, and the appearance of a separate neutrophil population expressing surface molecules atypical for neutrophils (e.g. CXCR3, MHC-II and CD14). Based on these results, we recommend using immunomagnetic separation of neutrophils for studying neutrophil polarization, phagocytosis, ROS production, degranulation and NETosis, whereas for Boyden chemotaxis assays, the density-gradient purification is more suitable.
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Affiliation(s)
- Marfa Blanter
- Laboratory of Molecular Immunology, Department of Microbiology, Immunology and Transplantation, Rega Institute, KU Leuven, Leuven, Belgium
| | - Seppe Cambier
- Laboratory of Molecular Immunology, Department of Microbiology, Immunology and Transplantation, Rega Institute, KU Leuven, Leuven, Belgium
| | - Mirre De Bondt
- Laboratory of Molecular Immunology, Department of Microbiology, Immunology and Transplantation, Rega Institute, KU Leuven, Leuven, Belgium
| | - Lotte Vanbrabant
- Laboratory of Molecular Immunology, Department of Microbiology, Immunology and Transplantation, Rega Institute, KU Leuven, Leuven, Belgium
| | - Noëmie Pörtner
- Laboratory of Molecular Immunology, Department of Microbiology, Immunology and Transplantation, Rega Institute, KU Leuven, Leuven, Belgium
| | - Sara Abouelasrar Salama
- Laboratory of Molecular Immunology, Department of Microbiology, Immunology and Transplantation, Rega Institute, KU Leuven, Leuven, Belgium
| | - Mieke Metzemaekers
- Laboratory of Molecular Immunology, Department of Microbiology, Immunology and Transplantation, Rega Institute, KU Leuven, Leuven, Belgium
| | - Pedro Elias Marques
- Laboratory of Molecular Immunology, Department of Microbiology, Immunology and Transplantation, Rega Institute, KU Leuven, Leuven, Belgium
| | - Sofie Struyf
- Laboratory of Molecular Immunology, Department of Microbiology, Immunology and Transplantation, Rega Institute, KU Leuven, Leuven, Belgium
| | - Paul Proost
- Laboratory of Molecular Immunology, Department of Microbiology, Immunology and Transplantation, Rega Institute, KU Leuven, Leuven, Belgium
| | - Mieke Gouwy
- Laboratory of Molecular Immunology, Department of Microbiology, Immunology and Transplantation, Rega Institute, KU Leuven, Leuven, Belgium
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Bomfim LGS, Magalhães LS, Rodrigues LS, Barreto AS, Santos CNO, dos Santos PL, Corrêa CB, Fukutani KF, Filho DC, da Silva AM, Lipscomb MW, de Moura TR. TREM-1 Expression on the Surface of Neutrophils in Patients With Visceral Leishmaniasis Is Associated With Immunopathogenesis. Front Cell Infect Microbiol 2022; 12:863986. [PMID: 35402286 PMCID: PMC8988227 DOI: 10.3389/fcimb.2022.863986] [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: 01/27/2022] [Accepted: 02/21/2022] [Indexed: 11/16/2022] Open
Abstract
Visceral leishmaniasis (VL) is a systemic chronic and potentially fatal disease for humans. Mechanisms related to the dysregulation of the inflammatory response may be involved in both the pathogenesis and prognosis of VL. Triggering Receptor Expressed on Myeloid Cells-1 (TREM-1) is a receptor constitutively expressed on neutrophils and monocyte subsets. The protein serves to regulate and amplify inflammatory responses. This study aimed to evaluate the expression profile of TREM-1 on the surface of neutrophils from patients with VL at varying time points during leishmanicidal treatment. For this purpose, neutrophils were isolated from the peripheral blood of patients with VL at different stages of treatment, which include 0, 7, and 30 days after treatment. Surface TREM-1 expression was assessed by immunophenotyping neutrophil populations. In addition, the association of TREM-1 expression on the surface of neutrophils with clinical and laboratory parameters and serum levels of inflammatory mediators was also evaluated. Results demonstrate a lower surface expression of TREM-1 in VL patients in the absence of treatment. However, increased levels of TREM-1 expression were observed 7 and 30 days after the start of treatment, with levels similar to those of healthy controls. TREM-1 expression was directly correlated with lymphocyte and erythrocyte count and indirectly correlated with spleen and liver size. Furthermore, elevated levels of TREM-1 expression were also correlated with lower serum levels of interleukin (IL)-22. Taken together, these results suggest that infection by Leishmania infantum leads to depressed TREM-1 expression on the neutrophil surface and may contribute to the inflammatory imbalance that characterizes active VL disease.
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Affiliation(s)
| | - Lucas Sousa Magalhães
- Laboratory of Molecular Biology and Immunology, Federal University of Sergipe, Aracaju, Brazil
| | | | - Aline Silva Barreto
- Laboratory of Molecular Biology and Immunology, Federal University of Sergipe, Aracaju, Brazil
| | - Camilla Natália Oliveira Santos
- Health Sciences Graduate Program, Federal University of Sergipe, Aracaju, Brazil
- Laboratory of Molecular Biology and Immunology, Federal University of Sergipe, Aracaju, Brazil
| | - Priscila Lima dos Santos
- Health Sciences Graduate Program, Federal University of Sergipe, Aracaju, Brazil
- Department of Health Education, Federal University of Sergipe, Lagarto, Brazil
| | - Cristiane Bani Corrêa
- Health Sciences Graduate Program, Federal University of Sergipe, Aracaju, Brazil
- Department of Morphology, Federal University of Sergipe, São Cristóvão, Brazil
| | | | - Dalmo Correia Filho
- Health Sciences Graduate Program, Federal University of Sergipe, Aracaju, Brazil
| | | | | | - Tatiana Rodrigues de Moura
- Health Sciences Graduate Program, Federal University of Sergipe, Aracaju, Brazil
- Department of Morphology, Federal University of Sergipe, São Cristóvão, Brazil
- *Correspondence: Tatiana Rodrigues de Moura,
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