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Li M, Yan Y, Zhang X, Zhang Y, Xu X, Zhang L, Lu L, Wang J, Zhang Y, Song Q, Zhao C. Scaffold compound L971 exhibits anti-inflammatory activities through inhibition of JAK/STAT and NFκB signalling pathways. J Cell Mol Med 2021; 25:6333-6347. [PMID: 34018320 PMCID: PMC8256347 DOI: 10.1111/jcmm.16609] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 04/22/2021] [Accepted: 04/26/2021] [Indexed: 12/17/2022] Open
Abstract
JAK/STAT and NFκB signalling pathways play essential roles in regulating inflammatory responses, which are important pathogenic factors of various serious immune-related diseases, and function individually or synergistically. To find prodrugs that can treat inflammation, we performed a preliminary high-throughput screening of 18 840 small molecular compounds and identified scaffold compound L971 which significantly inhibited JAK/STAT and NFκB driven luciferase activities. L971 could inhibit the constitutive and stimuli-dependent activation of STAT1, STAT3 and IκBα and could significantly down-regulate the proinflammatory gene expression in mouse peritoneal macrophages stimulated by LPS. Gene expression profiles upon L971 treatment were determined using high-throughput RNA sequencing, and significant differentially up-regulated and down-regulated genes were identified by DESeq analysis. The bioinformatic studies confirmed the anti-inflammatory effects of L971. Finally, L971 anti-inflammatory character was further verified in LPS-induced sepsis shock mouse model in vivo. Taken together, these data indicated that L971 could down-regulate both JAK/STAT and NFκB signalling activities and has the potential to treat inflammatory diseases such as sepsis shock.
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Affiliation(s)
- Mengyuan Li
- School of Medicine and PharmacyOcean University of ChinaQingdaoChina
| | - Yu Yan
- School of Medicine and PharmacyOcean University of ChinaQingdaoChina
| | - Xinxin Zhang
- Innovation Platform of Marine Drug Screening & EvaluationQingdao National Laboratory for Marine Science and TechnologyQingdaoChina
| | - Yidan Zhang
- School of Medicine and PharmacyOcean University of ChinaQingdaoChina
| | - Xiaohan Xu
- School of Medicine and PharmacyOcean University of ChinaQingdaoChina
| | - Lei Zhang
- School of Medicine and PharmacyOcean University of ChinaQingdaoChina
| | - Liangliang Lu
- School of Life ScienceLanzhou UniversityLanzhouChina
| | - Jie Wang
- School of Medicine and PharmacyOcean University of ChinaQingdaoChina
| | - Yazhuo Zhang
- School of Medicine and PharmacyOcean University of ChinaQingdaoChina
| | - Qiaoling Song
- School of Medicine and PharmacyOcean University of ChinaQingdaoChina
- Innovation Platform of Marine Drug Screening & EvaluationQingdao National Laboratory for Marine Science and TechnologyQingdaoChina
| | - Chenyang Zhao
- School of Medicine and PharmacyOcean University of ChinaQingdaoChina
- Innovation Platform of Marine Drug Screening & EvaluationQingdao National Laboratory for Marine Science and TechnologyQingdaoChina
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152
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Zhang W, Tang Z, Shi Y, Ji L, Chen X, Chen Y, Wang X, Wang M, Wang W, Li D. Association Between Gamma-Glutamyl Transferase, Total Bilirubin and Systemic Lupus Erythematosus in Chinese Women. Front Immunol 2021; 12:682400. [PMID: 34276670 PMCID: PMC8277571 DOI: 10.3389/fimmu.2021.682400] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Accepted: 05/25/2021] [Indexed: 12/26/2022] Open
Abstract
Background Systemic lupus erythematosus (SLE) affects many organs and systems of the human organism, at present, its specific pathogenesis is not completely clear, but inflammation is considered to be an important factor involved in the pathogenesis and progression of SLE. Gamma-glutamyl transpeptidase (GGT) and total bilirubin (TBIL) have different effects on inflammation: GGT has pro-inflammatory effects, on the contrary, TBIL has anti-inflammatory effects. Study has found that GGT and TBIL play opposite roles in metabolic diseases. However, the roles of them in SLE are unknown. Meanwhile, the relationship between GGT and SLE also remains unexplored. Method We recruited 341 SLE patients and 332 healthy individuals in Liaocheng People’s Hospital from August 2018 to May 2019. We diagnosed SLE using 2019 revised American College of Rheumatology (ACR) SLE criteria, and modeled the study outcomes using logistic regression to explore the respective relationship between GGT, TBIL and SLE. We also analyzed the interaction of GGT and TBIL in the progression of SLE. Results We found that the levels of CRP, IL-6 and TNF-α in the aggravated group were significantly higher than those in the unaggravated group, the levels of C3 and C4 in the aggravated group were significantly lower than those in the unaggravated group. According to Spearman correlation analysis, GGT is proportional to CRP (rs=0.417) and IL-6 (rs=0.412), inversely proportional to C3 (rs=-0.177) and C4 (rs=0.-132). TBIL was inversely proportional to CRP (rs=-0.328) and TNF(rs=-0.360), and positively proportional to C3 (rs=0.174) and C4 (rs=0.172). In the fully adjusted model, compared to the lowest quartile, the highest quartile of GGT exhibited a positive association with the risk of SLE aggravation (OR=2.99, 95% CI: 1.42–6.31, P<0.001). At the same time, compared to the highest quartile, the quartile lowest of TBIL exhibited a positive association with the risk of SLE aggravation (OR=2.66, 95% CI: 1.27–5.59, P<0.001) in the fully adjusted model. Through interaction analysis, we found that women with high GGT levels had an increased risk of SLE aggravation when they had a low level of TBIL (OR=3.68, 95% CI: 1.51–9.01, for women with Q1 TBIL and Q4 GGT compared to women with Q2-Q4 TBIL and Q1-Q3 GGT, P for interaction <0.001), the combined AUC value (AUCCOMBINED=0.711) of high GGT level and TBIL were higher than their respective values (AUCGGT=0.612, AUCTBIL=0.614). Conclusion We found that the effects of GGT and TBIL in the progression of SLE are opposite. High GGT level might be a risk factor for SLE aggravation, as GGT levels increased, so did the risk of SLE aggravation. At the same time, we found that low TBIL level might be a risk factor for SLE aggravation. Moreover, high GGT level and low TBIL level had a subadditive effect on the increased risk of SLE aggravation.
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Affiliation(s)
- Wenran Zhang
- Department of Epidemiology and Health Statistics, School of Public Health, Shandong First Medical University & Shandong Academy of Medical Sciences, Tai'an, China
| | - Zhaoyang Tang
- Department of Epidemiology and Health Statistics, School of Public Health, Shandong First Medical University & Shandong Academy of Medical Sciences, Tai'an, China
| | - Yanjun Shi
- Department of Rheumatology and Immunology, Liaocheng People's Hospital, Liao'cheng, China
| | - Long Ji
- Department of Epidemiology and Health Statistics, School of Public Health, Shandong First Medical University & Shandong Academy of Medical Sciences, Tai'an, China
| | - Xueyu Chen
- Department of Epidemiology and Health Statistics, School of Public Health, Shandong First Medical University & Shandong Academy of Medical Sciences, Tai'an, China
| | - Yanru Chen
- Department of Epidemiology and Health Statistics, School of Public Health, Shandong First Medical University & Shandong Academy of Medical Sciences, Tai'an, China
| | - Xiaohui Wang
- Department of Epidemiology and Health Statistics, School of Public Health, Shandong First Medical University & Shandong Academy of Medical Sciences, Tai'an, China
| | - Meng Wang
- Department of Epidemiology and Health Statistics, School of Public Health, Shandong First Medical University & Shandong Academy of Medical Sciences, Tai'an, China
| | - Wei Wang
- Department of Epidemiology and Health Statistics, School of Public Health, Shandong First Medical University & Shandong Academy of Medical Sciences, Tai'an, China
| | - Dong Li
- Department of Epidemiology and Health Statistics, School of Public Health, Shandong First Medical University & Shandong Academy of Medical Sciences, Tai'an, China.,Clinical Research Center, The Second Affiliated Hospital of Shandong First Medical University, Tai'an, China
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153
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Experimental Approaches to Evaluate Leukocyte-Endothelial Cell Interactions in Sepsis and Inflammation. Shock 2021; 53:585-595. [PMID: 32080065 DOI: 10.1097/shk.0000000000001407] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Sepsis is a life-threatening syndrome of organ dysfunction caused by a dysregulated host response to infection characterized by excessive neutrophil infiltration into vital organs. In sepsis, patients often die of organ failure and therapies directed against endothelial cell dysfunction and tissue damage are important targets for treatment of this disease. Novel approaches are required to understand the underlying pathophysiology of neutrophil dysregulation and neutrophil-endothelial cell interactions that play a critical role in the early course of organ damage and disruption of endothelial protective barrier. Here, we review methodologies that our laboratories have employed to study neutrophil-endothelial interaction and endothelial barrier function in in vivo and in vitro models of sepsis. We will focus on in vivo rodent models of sepsis and in vitro tools that use human cell culture models under static conditions and the more physiologically relevant biomimetic microfluidic assays. This Methods paper is based on our presentation in the Master Class Symposium at the 41st Annual Conference on Shock 2018.
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154
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Lung Transplantation, Pulmonary Endothelial Inflammation, and Ex-Situ Lung Perfusion: A Review. Cells 2021; 10:cells10061417. [PMID: 34200413 PMCID: PMC8229792 DOI: 10.3390/cells10061417] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 06/01/2021] [Accepted: 06/02/2021] [Indexed: 12/31/2022] Open
Abstract
Lung transplantation (LTx) is the gold standard treatment for end-stage lung disease; however, waitlist mortality remains high due to a shortage of suitable donor lungs. Organ quality can be compromised by lung ischemic reperfusion injury (LIRI). LIRI causes pulmonary endothelial inflammation and may lead to primary graft dysfunction (PGD). PGD is a significant cause of morbidity and mortality post-LTx. Research into preservation strategies that decrease the risk of LIRI and PGD is needed, and ex-situ lung perfusion (ESLP) is the foremost technological advancement in this field. This review addresses three major topics in the field of LTx: first, we review the clinical manifestation of LIRI post-LTx; second, we discuss the pathophysiology of LIRI that leads to pulmonary endothelial inflammation and PGD; and third, we present the role of ESLP as a therapeutic vehicle to mitigate this physiologic insult, increase the rates of donor organ utilization, and improve patient outcomes.
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155
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Lo LW, Chang CW, Chiang MF, Lin IY, Lin KI. Marginal Zone B Cells Assist With Neutrophil Accumulation to Fight Against Systemic Staphylococcus aureus Infection. Front Immunol 2021; 12:636818. [PMID: 34040603 PMCID: PMC8141640 DOI: 10.3389/fimmu.2021.636818] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Accepted: 04/13/2021] [Indexed: 12/15/2022] Open
Abstract
In addition to regulating immune responses by producing antibodies that confer humoral immunity, B cells can also affect these responses by producing cytokines. How B cells participate in the clearance of pathogenic infections via functions other than the production of pathogen-specific antibodies is still largely unknown. Marginal zone (MZ) B cells can quickly respond to bacterial invasion by providing the initial round of antibodies. After a bloodborne bacterial infection, neutrophils promptly migrate to the MZ. However, the mechanisms regulating neutrophil accumulation in the MZ during the initial phase of infection also remain obscure. Here, we found that MZ B cell-deficient mice are more susceptible to systemic Staphylococcus aureus (S. aureus) infection compared with wildtype mice. The expression levels of interleukin (IL)-6 and CXCL1/CXCL2 in MZ B cells increased significantly in mice at 3–4 h after infection with S. aureus, then decreased at 24 h post-infection. After systemic S. aureus infection, splenic neutrophils express increased CXCR2 levels. Our results from confocal microscopy imaging of thick-section staining demonstrate that neutrophils in wildtype mice form cell clusters and are in close contact with MZ B cells at 3 h post-infection. This neutrophil cluster formation shortly after infection was diminished in both MZ B cell-deficient mice and IL-6-deficient mice. Blocking the action of CXCL1/CXCL2 by injecting anti-CXCL1 and anti-CXCL2 antibodies 1 h before S. aureus infection significantly suppressed the recruitment of neutrophils to the MZ at 3 h post-infection. Compared with peptidoglycan stimulation alone, peptidoglycan stimulation with neutrophil co-culture further enhanced MZ B-cell activation and differentiation. Using a Förster resonance energy transfer by fluorescence lifetime imaging (FLIM-FRET) analysis, we observed evidence of a direct interaction between neutrophils and MZ B cells after peptidoglycan stimulation. Furthermore, neutrophil depletion in mice resulted in a reduced production of S. aureus-specific immunoglobulin (Ig)M at 24 h post-infection. Together, our results demonstrate that MZ B cells regulate the rapid neutrophil swarming into the spleen during the early phase of systemic S. aureus infection. Interaction with neutrophils assists MZ B cells with their differentiation into IgM-secreting cells and contributes to the clearance of systemic bacterial infections.
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Affiliation(s)
- Li-Wen Lo
- Graduate Institute of Immunology, College of Medicine, National Taiwan University, Taipei, Taiwan.,Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Chia-Wei Chang
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | | | - I-Ying Lin
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Kuo-I Lin
- Graduate Institute of Immunology, College of Medicine, National Taiwan University, Taipei, Taiwan.,Genomics Research Center, Academia Sinica, Taipei, Taiwan
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156
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Tang X, Jing T, Chen X, Wang T, Xie Y, Chen F, Wen Y, Chang J, Chen D, Ma W. Interleukin-17 mediates inflammatory tissue injury during orf development in goats. Vet Microbiol 2021; 258:109105. [PMID: 33991787 DOI: 10.1016/j.vetmic.2021.109105] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Accepted: 05/06/2021] [Indexed: 01/13/2023]
Abstract
Orf is an epithelial zoonotic infectious disease caused by orf virus (ORFV). Mounting studies have shown that IL-17-driven neutrophil inflammation plays a central role in inflammatory skin diseases. However, whether IL-17 plays a similar role and how does it work in the pathogenesis of orf is unclear. In this study, we found that during orf development, numerous inflammatory cells, especially neutrophils, infiltrated in the damaged lip tissue. Meanwhile, the production of IL-17 was increased in the lesion site. Further evidence showed that IL-17 potently stimulated the production of several chemokines that are crucial for neutrophil migration. In addition, IL-17 was mostly produced by CD4+ T cells and gamma delta T (γδ T) cells of the skin. In conclusion, the present study highlighted a critical role of IL-17-driven inflammation in the pathogenesis of orf and suggested that this cytokine may be a potential therapeutic target of this disease in goats.
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Affiliation(s)
- Xidian Tang
- Veterinary Immunology Laboratory, College of Veterinary Medicine, Northwest Agriculture and Forestry University, Yangling 712100, Shaanxi Province, China
| | - Tian Jing
- Veterinary Immunology Laboratory, College of Veterinary Medicine, Northwest Agriculture and Forestry University, Yangling 712100, Shaanxi Province, China
| | - Xi Chen
- Veterinary Immunology Laboratory, College of Veterinary Medicine, Northwest Agriculture and Forestry University, Yangling 712100, Shaanxi Province, China
| | - Tianxing Wang
- Veterinary Immunology Laboratory, College of Veterinary Medicine, Northwest Agriculture and Forestry University, Yangling 712100, Shaanxi Province, China
| | - Yanfei Xie
- Veterinary Immunology Laboratory, College of Veterinary Medicine, Northwest Agriculture and Forestry University, Yangling 712100, Shaanxi Province, China
| | - Fengqiang Chen
- Veterinary Immunology Laboratory, College of Veterinary Medicine, Northwest Agriculture and Forestry University, Yangling 712100, Shaanxi Province, China
| | - Ying Wen
- State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining 810016, Qinghai Province, China; College of Agriculture and Animal Husbandry, Qinghai University, Xining 810016, Qinghai Province, China
| | - Jianjun Chang
- State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining 810016, Qinghai Province, China; College of Agriculture and Animal Husbandry, Qinghai University, Xining 810016, Qinghai Province, China
| | - Dekun Chen
- Veterinary Immunology Laboratory, College of Veterinary Medicine, Northwest Agriculture and Forestry University, Yangling 712100, Shaanxi Province, China.
| | - Wentao Ma
- Veterinary Immunology Laboratory, College of Veterinary Medicine, Northwest Agriculture and Forestry University, Yangling 712100, Shaanxi Province, China.
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157
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Gierlikowska B, Stachura A, Gierlikowski W, Demkow U. Phagocytosis, Degranulation and Extracellular Traps Release by Neutrophils-The Current Knowledge, Pharmacological Modulation and Future Prospects. Front Pharmacol 2021; 12:666732. [PMID: 34017259 PMCID: PMC8129565 DOI: 10.3389/fphar.2021.666732] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Accepted: 04/19/2021] [Indexed: 12/15/2022] Open
Abstract
Neutrophils are crucial elements of innate immune system, which assure host defense via a range of effector functions, such as phagocytosis, degranulation, and NET formation. The latest literature clearly indicates that modulation of effector functions of neutrophils may affect the treatment efficacy. Pharmacological modulation may affect molecular mechanisms activating or suppressing phagocytosis, degranulation or NET formation. In this review, we describe the role of neutrophils in physiology and in the course of bacterial and viral infections, illustrating the versatility and plasticity of those cells. This review also focus on the action of plant extracts, plant-derived compounds and synthetic drugs on effector functions of neutrophils. These recent advances in the knowledge can help to devise novel therapeutic approaches via pharmacological modulation of the described processes.
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Affiliation(s)
- Barbara Gierlikowska
- Department of Laboratory Diagnostics and Clinical Immunology of Developmental Age, Medical University of Warsaw, Warsaw, Poland
| | - Albert Stachura
- Department of Methodology, Centre for Preclinical Research, Medical University of Warsaw, Warsaw, Poland.,Doctoral School, Medical University of Warsaw, Warsaw, Poland
| | - Wojciech Gierlikowski
- Department of Internal Medicine and Endocrinology, Medical University of Warsaw, Warsaw, Poland
| | - Urszula Demkow
- Department of Laboratory Diagnostics and Clinical Immunology of Developmental Age, Medical University of Warsaw, Warsaw, Poland
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158
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McElwain CJ, McCarthy FP, McCarthy CM. Gestational Diabetes Mellitus and Maternal Immune Dysregulation: What We Know So Far. Int J Mol Sci 2021; 22:4261. [PMID: 33923959 PMCID: PMC8073796 DOI: 10.3390/ijms22084261] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Revised: 04/06/2021] [Accepted: 04/14/2021] [Indexed: 02/07/2023] Open
Abstract
Gestational diabetes mellitus (GDM) is an obstetric complication that affects approximately 5-10% of all pregnancies worldwide. GDM is defined as any degree of glucose intolerance with onset or first recognition during pregnancy, and is characterized by exaggerated insulin resistance, a condition which is already pronounced in healthy pregnancies. Maternal hyperglycaemia ensues, instigating a 'glucose stress' response and concurrent systemic inflammation. Previous findings have proposed that both placental and visceral adipose tissue play a part in instigating and mediating this low-grade inflammatory response which involves altered infiltration, differentiation and activation of maternal innate and adaptive immune cells. The resulting maternal immune dysregulation is responsible for exacerbation of the condition and a further reduction in maternal insulin sensitivity. GDM pathology results in maternal and foetal adverse outcomes such as increased susceptibility to diabetes mellitus development and foetal neurological conditions. A clearer understanding of how these pathways originate and evolve will improve therapeutic targeting. In this review, we will explore the existing findings describing maternal immunological adaption in GDM in an attempt to highlight our current understanding of GDM-mediated immune dysregulation and identify areas where further research is required.
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Affiliation(s)
- Colm J. McElwain
- Department of Pharmacology and Therapeutics, Western Gateway Building, University College Cork, T12 XF62 Cork, Ireland;
| | - Fergus P. McCarthy
- Department of Obstetrics and Gynaecology, Cork University Maternity Hospital, T12 YE02 Cork, Ireland;
| | - Cathal M. McCarthy
- Department of Pharmacology and Therapeutics, Western Gateway Building, University College Cork, T12 XF62 Cork, Ireland;
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159
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Ulfig A, Bader V, Varatnitskaya M, Lupilov N, Winklhofer KF, Leichert LI. Hypochlorous acid-modified human serum albumin suppresses MHC class II - dependent antigen presentation in pro-inflammatory macrophages. Redox Biol 2021; 43:101981. [PMID: 33940547 PMCID: PMC8105673 DOI: 10.1016/j.redox.2021.101981] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 04/13/2021] [Accepted: 04/15/2021] [Indexed: 12/14/2022] Open
Abstract
Macrophages are innate immune cells that internalize and present exogenous antigens to T cells via MHC class II proteins. They operate at sites of infection in a highly inflammatory environment, generated in part by reactive oxygen species, in particular the strong oxidant hypochlorous acid (HOCl) produced in the neutrophil respiratory burst. HOCl effectively kills a broad range of pathogens but can also contribute to host tissue damage at sites of inflammation. To prevent tissue injury, HOCl is scavenged by human serum albumin (HSA) and other plasma proteins in interstitial fluids, leading to the formation of variously modified advanced oxidation products (AOPPs) with pro-inflammatory properties. Previously, we showed that HOCl-mediated N-chlorination converts HSA and other plasma proteins into efficient activators of the phagocyte respiratory burst, but the role of these AOPPs in antigen presentation by macrophages remained unclear. Here, we show that physiologically relevant amounts of N-chlorinated HSA can strongly impair the capacity of THP-1-derived macrophages to present antigens to antigen-specific T cells via MHC class II proteins at multiple stages. Initially, N-chlorinated HSA inhibits antigen internalization by converting antigens into scavenger receptor (SR) ligands and competing with the modified antigens for binding to SR CD36. Later steps of antigen presentation, such as intracellular antigen processing and MHC class II expression are negatively affected, as well. We propose that impaired processing of pathogens or exogenous antigens by immune cells at an initial stage of infection prevents antigen presentation in an environment potentially hostile to cells of the adaptive immune response, possibly shifting it towards locations removed from the actual insult, like the lymph nodes. On the flip side, excessive retardation or complete inhibition of antigen presentation by N-chlorinated plasma proteins could contribute to chronic infection and inflammation.
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Affiliation(s)
- Agnes Ulfig
- Ruhr University Bochum, Institute of Biochemistry and Pathobiochemistry - Microbial Biochemistry, Universitätsstrasse 150, 44780, Bochum, Germany
| | - Verian Bader
- Ruhr University Bochum, Institute of Biochemistry and Pathobiochemistry - Molecular Cell Biology, Universitätsstrasse 150, 44780, Bochum, Germany
| | - Marharyta Varatnitskaya
- Ruhr University Bochum, Institute of Biochemistry and Pathobiochemistry - Microbial Biochemistry, Universitätsstrasse 150, 44780, Bochum, Germany
| | - Natalie Lupilov
- Ruhr University Bochum, Institute of Biochemistry and Pathobiochemistry - Microbial Biochemistry, Universitätsstrasse 150, 44780, Bochum, Germany
| | - Konstanze F Winklhofer
- Ruhr University Bochum, Institute of Biochemistry and Pathobiochemistry - Molecular Cell Biology, Universitätsstrasse 150, 44780, Bochum, Germany
| | - Lars I Leichert
- Ruhr University Bochum, Institute of Biochemistry and Pathobiochemistry - Microbial Biochemistry, Universitätsstrasse 150, 44780, Bochum, Germany.
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160
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Jia J, Yang L, Cao Z, Wang M, Ma Y, Ma X, Liu Q, Teng J, Shi H, Liu H, Cheng X, Ye J, Su Y, Sun Y, Chi H, Liu T, Wang Z, Wan L, Yang C, Hu Q. Neutrophil-derived lipocalin-2 in adult-onset Still's disease: a novel biomarker of disease activity and liver damage. Rheumatology (Oxford) 2021; 60:304-315. [PMID: 32766690 PMCID: PMC7785307 DOI: 10.1093/rheumatology/keaa368] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 05/20/2020] [Indexed: 12/30/2022] Open
Abstract
OBJECTIVE Liver damage is a common manifestation and can be life-threatening in adult-onset Still's disease (AOSD), an autoinflammatory disease. The hallmark of AOSD is activation of neutrophils, whose infiltration in liver is suspected to promote tissue injury. Here we aimed to identify a candidate biomarker and to validate its association with liver damage in AOSD. METHODS Transcriptome analysis of neutrophils from treatment-naïve active AOSD patients and healthy donors was performed. Lipocalin-2 (LCN2) expression was assessed in neutrophils, plasma and liver biopsies of AOSD. The correlations of LCN2 with different variables and its ability to identify liver damage from AOSD patients were analysed. RESULTS LCN2, a novel biomarker in hepatic inflammation, was found to be upregulated in AOSD neutrophils by RNA sequencing and confirmed at the mRNA and protein levels. Plasma levels of LCN2 were significantly higher in AOSD patients than healthy controls, RA and SLE patients. Plasma LCN2 levels were closely correlated with inflammatory markers, systemic score, HScore and cytokines. Moreover, LCN2 levels were increased in active AOSD with liver involvement and independently associated with liver dysfunction. Enhanced expression of LCN2 was detected in liver biopsies from three patients with ongoing liver injury. Furthermore, the area under the curve value of LCN2 for identifying AOSD with liver injury from other liver diseases was 0.9694. CONCLUSION Our results reveal that neutrophils-derived LCN2 is higher in plasma and liver tissue in AOSD patients than in healthy controls, and it could serve as a potent biomarker for identifying AOSD with systemic inflammation, especially liver damage caused by hyperinflammation.
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Affiliation(s)
- Jinchao Jia
- Department of Rheumatology and Immunology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine
| | - Luyu Yang
- Department of General Surgery, Huashan Hospital, Cancer Metastasis Institute, Fudan University
| | - Zhujun Cao
- Department of Infectious Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine
| | - Mengyan Wang
- Department of Rheumatology and Immunology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine
| | - Yuning Ma
- Department of Rheumatology and Immunology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine
| | - Xiong Ma
- Division of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, State Key Laboratory for Oncogenes and Related Genes, Renji Hospital, School of Medicine, Shanghai Jiao Tong University; Shanghai Institute of Digestive Disease, Shanghai, China
| | - Qiaoyan Liu
- Division of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, State Key Laboratory for Oncogenes and Related Genes, Renji Hospital, School of Medicine, Shanghai Jiao Tong University; Shanghai Institute of Digestive Disease, Shanghai, China
| | - Jialin Teng
- Department of Rheumatology and Immunology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine
| | - Hui Shi
- Department of Rheumatology and Immunology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine
| | - Honglei Liu
- Department of Rheumatology and Immunology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine
| | - Xiaobing Cheng
- Department of Rheumatology and Immunology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine
| | - Junna Ye
- Department of Rheumatology and Immunology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine
| | - Yutong Su
- Department of Rheumatology and Immunology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine
| | - Yue Sun
- Department of Rheumatology and Immunology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine
| | - Huihui Chi
- Department of Rheumatology and Immunology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine
| | - Tingting Liu
- Department of Rheumatology and Immunology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine
| | - Zhihong Wang
- Department of Rheumatology and Immunology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine
| | - Liyan Wan
- Department of Rheumatology and Immunology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine
| | - Chengde Yang
- Department of Rheumatology and Immunology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine
| | - Qiongyi Hu
- Department of Rheumatology and Immunology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine
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Occurrence of Recurrent Aphthous Stomatitis (RAS) as a Rare Oral Manifestation in a Patient with Gilbert's Syndrome. Case Rep Dent 2021; 2021:6648729. [PMID: 33953989 PMCID: PMC8068538 DOI: 10.1155/2021/6648729] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Revised: 04/01/2021] [Accepted: 04/07/2021] [Indexed: 12/15/2022] Open
Abstract
Recurrent aphthous stomatitis is an ulcerative disease of the oral cavity and can occur in isolation or as a manifestation of many systemic diseases. It is a quite common entity and may hence often be overlooked as an isolated lesion. Gilbert's syndrome is a genetic disorder where a deficiency of an enzyme associated with the conjugation of bilirubin results in unconjugated hyperbilirubinemia. The disease is generally asymptomatic and is aggravated by certain trigger factors. No associated oral manifestations are known. In this case report, we discuss the concomitant presence of recurrent aphthous stomatitis in a patient of Gilbert's syndrome. The presence of such recurrent stomatitis may represent as an oral manifestation of Gilbert's syndrome. Early identification of these entities may improve the overall quality of life of the patient.
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162
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Johnson JB, Broszczak DA, Mani JS, Anesi J, Naiker M. A cut above the rest: oxidative stress in chronic wounds and the potential role of polyphenols as therapeutics. J Pharm Pharmacol 2021; 74:485-502. [PMID: 33822141 DOI: 10.1093/jpp/rgab038] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 02/11/2021] [Indexed: 12/15/2022]
Abstract
OBJECTIVES The pathophysiology of chronic wounds typically involves redox imbalance and inflammation pathway dysregulation, often with concomitant microbial infection. Endogenous antioxidants such as glutathione and tocopherols are notably reduced or absent, indicative of significant oxidative imbalance. However, emerging evidence suggests that polyphenols could be effective agents for the amelioration of this condition. This review aims to summarise the current state of knowledge surrounding redox imbalance in the chronic wound environment and the potential use of polyphenols for the treatment of chronic wounds. KEY FINDINGS Polyphenols provide a multi-faceted approach towards the treatment of chronic wounds. Firstly, their antioxidant activity allows direct neutralisation of harmful free radicals and reactive oxygen species, assisting in restoring redox balance. Upregulation of pro-healing and anti-inflammatory gene pathways and enzymes by specific polyphenols further acts to reduce redox imbalance and promote wound healing actions, such as proliferation, extracellular matrix deposition and tissue remodelling. Finally, many polyphenols possess antimicrobial activity, which can be beneficial for preventing or resolving infection of the wound site. SUMMARY Exploration of this diverse group of natural compounds may yield effective and economical options for the prevention or treatment of chronic wounds.
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Affiliation(s)
- Joel B Johnson
- School of Health, Medical and Applied Science, CQUniversity, Bruce Hwy, North Rockhampton, Queensland, Australia.,Centre for Indigenous Health Equity Research, CQUniversity, Bruce Hwy, North Rockhampton, Queensland, Australia
| | - Daniel A Broszczak
- School of Biomedical Sciences, Faculty of Health, Queensland University of Technology, Brisbane, Queensland, Australia.,Tissue Repair and Translational Physiology Program, Institute of Health and Biomedical Innovation, Queensland University of Technology, Kelvin Grove, Queensland, Australia
| | - Janice S Mani
- School of Health, Medical and Applied Science, CQUniversity, Bruce Hwy, North Rockhampton, Queensland, Australia.,Centre for Indigenous Health Equity Research, CQUniversity, Bruce Hwy, North Rockhampton, Queensland, Australia
| | - Jack Anesi
- School of Science, Psychology and Sport, Federation University Australia, Ballarat, Victoria, Australia
| | - Mani Naiker
- School of Health, Medical and Applied Science, CQUniversity, Bruce Hwy, North Rockhampton, Queensland, Australia.,Centre for Indigenous Health Equity Research, CQUniversity, Bruce Hwy, North Rockhampton, Queensland, Australia
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163
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Neutrophil-to-Lymphocyte Ratio as a Cardiovascular Risk Marker May Be Less Efficient in Women Than in Men. Biomolecules 2021; 11:biom11040528. [PMID: 33918155 PMCID: PMC8066649 DOI: 10.3390/biom11040528] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 03/22/2021] [Accepted: 03/30/2021] [Indexed: 12/21/2022] Open
Abstract
Cardiovascular disease (CVD) is the leading cause of death in women, although traditionally, it has been considered as a male dominated disease. Chronic inflammation plays a crucial role in the development of insulin resistance, diabetes type 2 and CVD. Since studies on women were scarce, in order to improve diagnosis and treatment of CVD, there is a need to improve understanding of the role of inflammation in the development of CVD in women. The neutrophil-to-lymphocyte ratio (NLR) is an inexpensive and widely available marker of inflammation, and has been studied in cardio-metabolic disorders. There is a paucity of data on sex specific differences in the lifetime course of NLR. Men and women differ to each other in sex hormones and characteristics of immune reaction and the expression of CVD. These factors can determine NLR values and their variations along the life course. In particular, menopause in women is a period associated with profound physiological and hormonal changes, and is coincidental with aging. An emergence of CV risk factors with aging, and age-related changes in the immune system, are factors that are associated with an increase in prevalence of CVD in both sexes. The aim of this review is to comprehend the available evidence on this issue, and to discuss sex specific differences in the lifetime course of NLR in the light of immune and inflammation mechanisms.
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164
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Gaissler V, Antunes FTT, Willand E, Duarte SBS, Pires CS, Machado RNF, de Oliveira IB, Pighinelli L, de Souza AH. The effects of Brazilian chitosan-based biomaterials on wound healing in rats. Tissue Cell 2021; 69:101476. [PMID: 33422862 DOI: 10.1016/j.tice.2020.101476] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Revised: 12/03/2020] [Accepted: 12/04/2020] [Indexed: 12/19/2022]
Abstract
The use of natural supplies is a resource to mimic an original extracellular matrix that allows for migration, proliferation, and cellular organization. Chitosan from Brazilian Atlantic Ocean had low protein, minerals percentage and excellent antibacterial activity. The aim of this study was to evaluate and to compare the effectiveness of different types of acids as solvents with Brazilian chitosan-membrane in the healing process of skin lesions. Experimental full-thickness 2 × 2 cm wounds were created on the dorsum skin of Wistar rats. The applied different treatments were saline, collagenase®, microcrystalline chitosan salt membrane (MCSM), microcrystalline chitosan acetic acid membrane (MCAAM), and microcrystalline chitosan hydrochloric acid membrane (MCHAM). The wound repairs were measured morphologically and histologically on days 0, 3, 7, 10, and 14. The exudate formation and the final wound contractions were similar in all of the groups. There were mild exudations in the groups with chitosan-membranes, despite the formation of crust under the membrane. This configured a serum hematic aspect, but there was no impact on the healing process. The MCHAM group had more favorable aspects that histologically showed the healing phases. A significant migration of neutrophils and macrophages seen by myeloperoxidade and Beta-N-Acetylglucosaminidase activities was evident in the chitosan groups, MCHAM and MCSM, respectively. Furthermore, the MCHAM group created its histological arrangement in a dense and more consistent manner.
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Affiliation(s)
- Vanessa Gaissler
- Graduate Program in Applied Genetics and Toxicology, Lutheran University of Brazil, Canoas, Rio Grande do Sul, Brazil
| | - Flavia Tasmin Techera Antunes
- Graduate Program in Cellular and Molecular Biology for the Health Sciences, Lutheran University of Brazil, Canoas, Rio Grande do Sul, Brazil
| | - Elenir Willand
- Department of Pharmacology, Lutheran University of Brazil, Canoas, Rio Grande do Sul, Brazil
| | | | - Cecilia Suzane Pires
- Department of Pharmacology, Lutheran University of Brazil, Canoas, Rio Grande do Sul, Brazil
| | | | | | - Luciano Pighinelli
- Department of Biomaterials, Lutheran University of Brazil, Canoas, Rio Grande do Sul, Brazil
| | - Alessandra Hubner de Souza
- Graduate Program in Applied Genetics and Toxicology, Lutheran University of Brazil, Canoas, Rio Grande do Sul, Brazil; Department of Pharmacology, Lutheran University of Brazil, Canoas, Rio Grande do Sul, Brazil; Graduate Program in Cellular and Molecular Biology for the Health Sciences, Lutheran University of Brazil, Canoas, Rio Grande do Sul, Brazil.
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165
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Transcriptional Profiling Reveals Kidney Neutrophil Heterogeneity in Both Healthy People and ccRCC Patients. J Immunol Res 2021; 2021:5598627. [PMID: 33791390 PMCID: PMC7984911 DOI: 10.1155/2021/5598627] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 01/31/2021] [Accepted: 02/24/2021] [Indexed: 12/13/2022] Open
Abstract
Neutrophil is known to critically impact the development of renal diseases (e.g., the clear cell renal cell carcinoma (ccRCC)), whereas the heterogeneity of neutrophils in ccRCC remains unclear. In the present study, kidney biopsies from healthy donors and ccRCC tissues were collected for single-cell RNA sequencing (scRNA-seq). In addition, the subpopulations of neutrophils in a healthy kidney and in the tumor microenvironment (TME) of ccRCC were expressed and then analyzed. The genes reported previously were mapped to all subpopulations identified here. On that basis, biological theme comparison and Gene Set Enrichment Analysis (GSEA) were employed to reveal and compare relevant biological functions. In a healthy kidney, neutrophils exhibit two subpopulations: one is more associated with renal autoimmunity, probably acting as therapeutic target; the other is suggested to resist infectious microorganisms. It is noteworthy that six subpopulations were identified in ccRCC biopsy, and two were more relevant to autoimmunity, while the other four are more relevant to the tumor pathology. Besides, ccRCC neutrophil could resist anticancer immune therapies of ipilimumab and pembrolizumab for their low/no expressions of CTLA-4, PD-1, and PD-L1. Thus, this study can help understand the heterogeneity and pathological significance of neutrophils in renal diseases.
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166
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Pegoraro NS, Camponogara C, Cruz L, Oliveira SM. Oleic acid exhibits an expressive anti-inflammatory effect in croton oil-induced irritant contact dermatitis without the occurrence of toxicological effects in mice. JOURNAL OF ETHNOPHARMACOLOGY 2021; 267:113486. [PMID: 33091495 DOI: 10.1016/j.jep.2020.113486] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 10/15/2020] [Accepted: 10/16/2020] [Indexed: 06/11/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Cutaneous inflammatory diseases, such as irritant contact dermatitis, are usually treated with topical corticosteroids, which cause systemic and local adverse effects limiting their use. Thus, the discovery of new therapeutic alternatives able to effectively treat skin inflammatory disorders, without causing adverse effects, is urgently needed. AIM OF THE STUDY To investigate the topical anti-inflammatory effect of oleic acid (OA), a monounsaturated fatty acid, into Pemulen® TR2-based semisolid dosage forms, employing a croton oil-induced irritant contact dermatitis model in mice. MATERIALS AND METHODS Male Swiss mice were submitted to skin inflammation protocols by acute and repeated applications of croton oil. The anti-inflammatory activity of Pemulen® TR2 hydrogels containing OA was evaluated by assessing oedema, inflammatory cell infiltration, and pro-inflammatory cytokine IL-1β levels. The mechanisms of action of OA were evaluated using cytokine IL-1β application or pretreatment with the glucocorticoid antagonist mifepristone. Possible toxic effects of OA were also assessed. RESULTS Pemulen® TR2 3% OA inhibited the acute ear oedema [maximal inhibition (Imax) = 76.41 ± 5.69%], similarly to dexamethasone (Imax = 84.94 ± 2.16%), and also inhibited ear oedema after repeated croton oil application with Imax = 85.75 ± 3.08%, similar to dexamethasone (Imax = 81.03 ± 4.66%) on the day 7 of the experiment. Croton oil increased myeloperoxidase activity, which was inhibited by Pemulen® TR2 3% OA (Imax = 71.37 ± 10.97%) and by 0.5% dexamethasone (Imax = 96.31 ± 3.73%). Pemulen® TR2 3% OA also prevented the increase in pro-inflammatory cytokine IL-1β levels induced by croton oil (Imax = 94.18 ± 12.03%), similar to 0.5% dexamethasone (Imax = 87.21 ± 10.58%). Besides, both Pemulen® TR2 3% OA and 0.5% dexamethasone inhibited IL-1β-induced ear oedema with an Imax of 80.58 ± 2.45% and 77.46 ± 1.92%, respectively. OA and dexamethasone anti-inflammatory effects were prevented by 100% and 91.43 ± 5.43%, respectively, after pretreatment with mifepristone. No adverse effects were related to Pemulen® TR2 3% OA administration. CONCLUSIONS OA demonstrated anti-inflammatory efficacy similar to dexamethasone, clinically used to treat skin inflammatory conditions, without presenting adverse effects.
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Affiliation(s)
- Natháli Schopf Pegoraro
- Graduate Program in Biological Sciences: Biochemistry Toxicology, Center of Natural and Exact Sciences, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Camila Camponogara
- Graduate Program in Biological Sciences: Biochemistry Toxicology, Center of Natural and Exact Sciences, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Letícia Cruz
- Graduate Program in Pharmaceutical Sciences, Center of Health Sciences, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Sara Marchesan Oliveira
- Graduate Program in Biological Sciences: Biochemistry Toxicology, Center of Natural and Exact Sciences, Federal University of Santa Maria, Santa Maria, RS, Brazil.
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167
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Passelli K, Billion O, Tacchini-Cottier F. The Impact of Neutrophil Recruitment to the Skin on the Pathology Induced by Leishmania Infection. Front Immunol 2021; 12:649348. [PMID: 33732265 PMCID: PMC7957080 DOI: 10.3389/fimmu.2021.649348] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Accepted: 02/04/2021] [Indexed: 12/29/2022] Open
Abstract
Leishmania (L.) are obligate intracellular protozoan parasites that cause the leishmaniases, a spectrum of neglected infectious vector-borne diseases with a broad range of clinical manifestations ranging from local cutaneous, to visceral forms of the diseases. The parasites are deposited in the mammalian skin during the blood meal of an infected female phlebotomine sand fly. The skin is a complex organ acting as the first line of physical and immune defense against pathogens. Insults to skin integrity, such as that occurring during insect feeding, induces the local secretion of pro-inflammatory molecules generating the rapid recruitment of neutrophils. At the site of infection, skin keratinocytes play a first role in host defense contributing to the recruitment of inflammatory cells to the infected dermis, of which neutrophils are the first recruited cells. Although neutrophils efficiently kill various pathogens including Leishmania, several Leishmania species have developed mechanisms to survive in these cells. In addition, through their rapid release of cytokines, neutrophils modulate the skin microenvironment at the site of infection, a process shaping the subsequent development of the adaptive immune response. Neutrophils may also be recruited later on in unhealing forms of cutaneous leishmaniasis and to the spleen and liver in visceral forms of the disease. Here, we will review the mechanisms involved in neutrophil recruitment to the skin following Leishmania infection focusing on the role of keratinocytes in this process. We will also discuss the distinct involvement of neutrophils in the outcome of leishmaniasis.
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Affiliation(s)
- Katiuska Passelli
- Department of Biochemistry, WHO Collaborative Centre for Research and Training in Immunology, University of Lausanne, Lausanne, Switzerland
| | - Oaklyne Billion
- Department of Biochemistry, WHO Collaborative Centre for Research and Training in Immunology, University of Lausanne, Lausanne, Switzerland
| | - Fabienne Tacchini-Cottier
- Department of Biochemistry, WHO Collaborative Centre for Research and Training in Immunology, University of Lausanne, Lausanne, Switzerland
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168
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Rossi JF, Lu ZY, Massart C, Levon K. Dynamic Immune/Inflammation Precision Medicine: The Good and the Bad Inflammation in Infection and Cancer. Front Immunol 2021; 12:595722. [PMID: 33708198 PMCID: PMC7940508 DOI: 10.3389/fimmu.2021.595722] [Citation(s) in RCA: 63] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Accepted: 01/11/2021] [Indexed: 12/13/2022] Open
Abstract
Normal or “good” inflammation process starts from a local cellular response against injury or any infectious agent, with the activation of neutrophils, macrophages, Langerhans cells, dendritic cells, and innate immune cells. Cytokines and chemokines are produced to amplify the local inflammatory process followed by the migration of immune cells to the regional lymph nodes where adaptive immune response is initiated. Systemic inflammation enhances the biological response to mobilize additional cells from central and peripheral immune/hematopoietic system. Local mechanisms to limit inflammation are initiated and lead to healing. During the normal inflammatory process, there is a balance between the production of inflammatory chemokines/cytokines such as Tumor Necrosis Factor (TNF)-α, interleukin (IL)-6 and IL-1 and the production of compounds that limit inflammation and have an immune suppressive effect, such as IL-10 and Transforming Factor (TGF) β. IL-6 and IL-6/soluble IL-6 Receptor (R) complex stimulate liver cells to produce inflammatory proteins, which represents the systemic inflammation response. The magnitude and the duration of the systemic inflammatory response are linked to the cause, under genetic and epigenetic control. Significant inflammation as seen in septic shock, in severe forms of infections or in certain active cancers, represents the “bad inflammation”, correlated with a poor prognosis. In addition, the persistence of a chronic smoldering inflammation may lead to pathological situations which are observed in the majority of inflammatory, degenerative, dysmetabolic, or dysimmune diseases and cancer. Chronic smoldering inflammation is a cross between different pathological situations possibly linked. In addition, within the tumor microenvironment, inflammatory process results from different cellular mechanisms modulated by metabolic and vascular changes. On the contrary, a limited and balanced inflammation initiates the normal immune response, including the adaptive response which amplifies any immunotherapy, including vaccines. Immune checkpoint inhibitors and chimeric antigen receptor (CAR) T-cells are associated with cytokine release syndrome, a clinical risk leading to the use of anti-cytokine drugs. Nowadays, it is time to monitor the dynamic inflammatory process for a better immune precision medicine in both infections and cancer.
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Affiliation(s)
- Jean-François Rossi
- Hématologie-Immunothérapie, Institut du Cancer Avignon-Provence, Sainte Catherine, Avignon, France.,Faculté de médecine Montpellier, Université de Montpellier, Montpellier, France
| | - Zhao Yang Lu
- Unité de Thérapie Cellulaire, CHU Montpellier Saint-Eloi, Montpellier, France
| | | | - Kalle Levon
- New York University (NYU) Tandon School of Engineering, Six Metrotech Center, Brooklyn, NY, United States
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169
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Owusu SB, Hudik E, Férard C, Dupré-Crochet S, Addison ECDK, Preko K, Bizouarn T, Houée-Levin C, Baciou L. Radiation-induced reactive oxygen species partially assemble neutrophil NADPH oxidase. Free Radic Biol Med 2021; 164:76-84. [PMID: 33387605 DOI: 10.1016/j.freeradbiomed.2020.12.233] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 12/09/2020] [Accepted: 12/19/2020] [Indexed: 02/05/2023]
Abstract
Neutrophils are key cells from the innate immune system that destroy invading bacteria or viruses, thanks mainly to the non-mitochondrial reactive oxygen species (ROS) generated by the enzyme NADPH oxidase. Our aim was to study the response of neutrophils to situations of oxidative stress with emphasis on the impact on the NADPH oxidase complex. To mimic oxidative stress, we used gamma irradiation that generated ROS (OH•, O2•- and H2O2) in a quantitative controlled manner. We showed that, although irradiation induces shorter half-lives of neutrophil (reduced by at least a factor of 2), it triggers a pre-activation of surviving neutrophils. This is detectable by the production of a small but significant amount of superoxide anions, proportional to the dose (about 3 times that of sham). Investigations at the molecular level showed that this ROS increase was generated by the NADPH oxidase enzyme after neutrophils irradiation. The NADPH oxidase complex undergoes an incomplete assembly which includes p47phox and p67phox but excludes the G-protein Rac. Importantly, this irradiation-induced pre-activation is capable of considerably improving neutrophil reactivity. Indeed, we have observed that this leads to an increase in the production of ROS and the capacity of phagocytosis, leading to the conclusion that radiation induced ROS clearly behave as neutrophil primers.
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Affiliation(s)
- Stephenson B Owusu
- Institut de Chimie Physique UMR 8000, CNRS, Université Paris-Saclay, 91405, Orsay Cedex, France; Department of Physics, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Elodie Hudik
- Institut de Chimie Physique UMR 8000, CNRS, Université Paris-Saclay, 91405, Orsay Cedex, France
| | - Céline Férard
- Institut de Chimie Physique UMR 8000, CNRS, Université Paris-Saclay, 91405, Orsay Cedex, France
| | - Sophie Dupré-Crochet
- Institut de Chimie Physique UMR 8000, CNRS, Université Paris-Saclay, 91405, Orsay Cedex, France
| | - Eric C D K Addison
- Department of Physics, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana; Medical Physics Department, Oncology Directorate, Komfo Anokye Teaching Hospital, Kumasi, Ghana
| | - Kwasi Preko
- Department of Physics, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Tania Bizouarn
- Institut de Chimie Physique UMR 8000, CNRS, Université Paris-Saclay, 91405, Orsay Cedex, France
| | - Chantal Houée-Levin
- Institut de Chimie Physique UMR 8000, CNRS, Université Paris-Saclay, 91405, Orsay Cedex, France
| | - Laura Baciou
- Institut de Chimie Physique UMR 8000, CNRS, Université Paris-Saclay, 91405, Orsay Cedex, France.
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170
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Gaurav R, Mikuls TR, Thiele GM, Nelson AJ, Niu M, Guda C, Eudy JD, Barry AE, Wyatt TA, Romberger DJ, Duryee MJ, England BR, Poole JA. High-throughput analysis of lung immune cells in a combined murine model of agriculture dust-triggered airway inflammation with rheumatoid arthritis. PLoS One 2021; 16:e0240707. [PMID: 33577605 PMCID: PMC7880471 DOI: 10.1371/journal.pone.0240707] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Accepted: 12/18/2020] [Indexed: 01/10/2023] Open
Abstract
Rheumatoid arthritis (RA)-associated lung disease is a leading cause of mortality in RA, yet the mechanisms linking lung disease and RA remain unknown. Using an established murine model of RA-associated lung disease combining collagen-induced arthritis (CIA) with organic dust extract (ODE)-induced airway inflammation, differences among lung immune cell populations were analyzed by single cell RNA-sequencing. Additionally, four lung myeloid-derived immune cell populations including macrophages, monocytes/macrophages, monocytes, and neutrophils were isolated by fluorescence cell sorting and gene expression was determined by NanoString analysis. Unsupervised clustering revealed 14 discrete clusters among Sham, CIA, ODE, and CIA+ODE treatment groups: 3 neutrophils (inflammatory, resident/transitional, autoreactive/suppressor), 5 macrophages (airspace, differentiating/recruited, recruited, resident/interstitial, and proliferative airspace), 2 T-cells (differentiating and effector), and a single cluster each of inflammatory monocytes, dendritic cells, B-cells and natural killer cells. Inflammatory monocytes, autoreactive/suppressor neutrophils, and recruited/differentiating macrophages were predominant with arthritis induction (CIA and CIA+ODE). By specific lung cell isolation, several interferon-related and autoimmune genes were disproportionately expressed among CIA and CIA+ODE (e.g. Oasl1, Oas2, Ifit3, Gbp2, Ifi44, and Zbp1), corresponding to RA and RA-associated lung disease. Monocytic myeloid-derived suppressor cells were reduced, while complement genes (e.g. C1s1 and Cfb) were uniquely increased in CIA+ODE mice across cell populations. Recruited and inflammatory macrophages/monocytes and neutrophils expressing interferon-, autoimmune-, and complement-related genes might contribute towards pro-fibrotic inflammatory lung responses following airborne biohazard exposures in setting of autoimmune arthritis and could be predictive and/or targeted to reduce disease burden.
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Affiliation(s)
- Rohit Gaurav
- Division of Allergy and Immunology, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, United States of America
- * E-mail:
| | - Ted R. Mikuls
- Veterans Affairs Nebraska-Western Iowa Health Care System, Research Service, Omaha, NE, United States of America
- Division of Rheumatology & Immunology, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, United States of America
| | - Geoffrey M. Thiele
- Veterans Affairs Nebraska-Western Iowa Health Care System, Research Service, Omaha, NE, United States of America
- Division of Rheumatology & Immunology, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, United States of America
| | - Amy J. Nelson
- Division of Allergy and Immunology, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, United States of America
| | - Meng Niu
- Department of Genetics, Cell Biology and Anatomy, University of Nebraska Medical Center, Omaha, NE, United States of America
| | - Chittibabu Guda
- Department of Genetics, Cell Biology and Anatomy, University of Nebraska Medical Center, Omaha, NE, United States of America
| | - James D. Eudy
- Department of Genetics, Cell Biology and Anatomy, University of Nebraska Medical Center, Omaha, NE, United States of America
| | - Austin E. Barry
- Division of Allergy and Immunology, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, United States of America
| | - Todd A. Wyatt
- Veterans Affairs Nebraska-Western Iowa Health Care System, Research Service, Omaha, NE, United States of America
- Division of Pulmonary, Critical Care & Sleep, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, United States of America
- Department of Environmental, Agricultural & Occupational Health, College of Public Health, University of Nebraska Medical Center, Omaha, NE, United States of America
- Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, United States of America
| | - Debra J. Romberger
- Veterans Affairs Nebraska-Western Iowa Health Care System, Research Service, Omaha, NE, United States of America
- Division of Pulmonary, Critical Care & Sleep, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, United States of America
| | - Michael J. Duryee
- Veterans Affairs Nebraska-Western Iowa Health Care System, Research Service, Omaha, NE, United States of America
- Division of Rheumatology & Immunology, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, United States of America
| | - Bryant R. England
- Veterans Affairs Nebraska-Western Iowa Health Care System, Research Service, Omaha, NE, United States of America
- Division of Rheumatology & Immunology, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, United States of America
| | - Jill A. Poole
- Division of Allergy and Immunology, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, United States of America
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171
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Tansi FL, Fröbel F, Maduabuchi WO, Steiniger F, Westermann M, Quaas R, Teichgräber UK, Hilger I. Effect of Matrix-Modulating Enzymes on The Cellular Uptake of Magnetic Nanoparticles and on Magnetic Hyperthermia Treatment of Pancreatic Cancer Models In Vivo. NANOMATERIALS 2021; 11:nano11020438. [PMID: 33572222 PMCID: PMC7915425 DOI: 10.3390/nano11020438] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Revised: 01/10/2021] [Accepted: 02/03/2021] [Indexed: 12/18/2022]
Abstract
Magnetic hyperthermia can cause localized thermal eradication of several solid cancers. However, a localized and homogenous deposition of high concentrations of magnetic nanomaterials into the tumor stroma and tumor cells is mostly required. Poorly responsive cancers such as the pancreatic adenocarcinomas are hallmarked by a rigid stroma and poor perfusion to therapeutics and nanomaterials. Hence, approaches that enhance the infiltration of magnetic nanofluids into the tumor stroma convey potentials to improve thermal tumor therapy. We studied the influence of the matrix-modulating enzymes hyaluronidase and collagenase on the uptake of magnetic nanoparticles by pancreatic cancer cells and 3D spheroids thereof, and the overall impact on magnetic heating and cell death. Furthermore, we validated the effect of hyaluronidase on magnetic hyperthermia treatment of heterotopic pancreatic cancer models in mice. Treatment of cultured cells with the enzymes caused higher uptake of magnetic nanoparticles (MNP) as compared to nontreated cells. For example, hyaluronidase caused a 28% increase in iron deposits per cell. Consequently, the thermal doses (cumulative equivalent minutes at 43 °C, CEM43) increased by 15–23% as compared to heat dose achieved for cells treated with magnetic hyperthermia without using enzymes. Likewise, heat-induced cell death increased. In in vivo studies, hyaluronidase-enhanced infiltration and distribution of the nanoparticles in the tumors resulted in moderate heating levels (CEM43 of 128 min as compared to 479 min) and a slower, but persistent decrease in tumor volumes over time after treatment, as compared to comparable treatment without hyaluronidase. The results indicate that hyaluronidase, in particular, improves the infiltration of magnetic nanoparticles into pancreatic cancer models, impacts their thermal treatment and cell depletion, and hence, will contribute immensely in the fight against pancreatic and many other adenocarcinomas.
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Affiliation(s)
- Felista L. Tansi
- Department of Experimental Radiology, Institute of Diagnostic and Interventional Radiology, Jena University Hospital—Friedrich Schiller University Jena, Am Klinikum 1, 07747 Jena, Germany; (F.F.); (W.O.M.)
- Correspondence: (F.L.T.); (I.H.); Tel.: +49-3641-9324993 (F.L.T.); +49-3641-9325921 (I.H.)
| | - Filipp Fröbel
- Department of Experimental Radiology, Institute of Diagnostic and Interventional Radiology, Jena University Hospital—Friedrich Schiller University Jena, Am Klinikum 1, 07747 Jena, Germany; (F.F.); (W.O.M.)
| | - Wisdom O. Maduabuchi
- Department of Experimental Radiology, Institute of Diagnostic and Interventional Radiology, Jena University Hospital—Friedrich Schiller University Jena, Am Klinikum 1, 07747 Jena, Germany; (F.F.); (W.O.M.)
| | - Frank Steiniger
- Center for Electron Microscopy, Jena University Hospital—Friedrich Schiller University Jena, Ziegelmuehlenweg 1, 07743 Jena, Germany; (F.S.); (M.W.)
| | - Martin Westermann
- Center for Electron Microscopy, Jena University Hospital—Friedrich Schiller University Jena, Ziegelmuehlenweg 1, 07743 Jena, Germany; (F.S.); (M.W.)
| | | | - Ulf K. Teichgräber
- Institute of Diagnostic and Interventional Radiology, Jena University Hospital—Friedrich Schiller University Jena, Am Klinikum 1, 07747 Jena, Germany;
| | - Ingrid Hilger
- Department of Experimental Radiology, Institute of Diagnostic and Interventional Radiology, Jena University Hospital—Friedrich Schiller University Jena, Am Klinikum 1, 07747 Jena, Germany; (F.F.); (W.O.M.)
- Correspondence: (F.L.T.); (I.H.); Tel.: +49-3641-9324993 (F.L.T.); +49-3641-9325921 (I.H.)
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172
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Interplay between ESKAPE Pathogens and Immunity in Skin Infections: An Overview of the Major Determinants of Virulence and Antibiotic Resistance. Pathogens 2021; 10:pathogens10020148. [PMID: 33540588 PMCID: PMC7912840 DOI: 10.3390/pathogens10020148] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 01/26/2021] [Accepted: 01/27/2021] [Indexed: 12/16/2022] Open
Abstract
The skin is the largest organ in the human body, acting as a physical and immunological barrier against pathogenic microorganisms. The cutaneous lesions constitute a gateway for microbial contamination that can lead to chronic wounds and other invasive infections. Chronic wounds are considered as serious public health problems due the related social, psychological and economic consequences. The group of bacteria known as ESKAPE (Enterococcus faecium, Staphylococcus aureus, Klebsiella pneumoniae, Acinetobacter baumannii, Pseudomonas aeruginosa and Enterobacter sp.) are among the most prevalent bacteria in cutaneous infections. These pathogens have a high level of incidence in hospital environments and several strains present phenotypes of multidrug resistance. In this review, we discuss some important aspects of skin immunology and the involvement of ESKAPE in wound infections. First, we introduce some fundamental aspects of skin physiology and immunology related to cutaneous infections. Following this, the major virulence factors involved in colonization and tissue damage are highlighted, as well as the most frequently detected antimicrobial resistance genes. ESKAPE pathogens express several virulence determinants that overcome the skin's physical and immunological barriers, enabling them to cause severe wound infections. The high ability these bacteria to acquire resistance is alarming, particularly in the hospital settings where immunocompromised individuals are exposed to these pathogens. Knowledge about the virulence and resistance markers of these species is important in order to develop new strategies to detect and treat their associated infections.
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173
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Narla S, Azzam M, Townsend S, Vellaichamy G, Marzano AV, Alavi A, Lowes MA, Hamzavi IH. Identifying key components and therapeutic targets of the immune system in hidradenitis suppurativa with an emphasis on neutrophils. Br J Dermatol 2021; 184:1004-1013. [PMID: 32893875 DOI: 10.1111/bjd.19538] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 08/05/2020] [Accepted: 08/29/2020] [Indexed: 12/13/2022]
Abstract
Hidradenitis suppurativa (HS) is a chronic, inflammatory, recurrent and debilitating skin disease of the hair follicle unit that typically develops after puberty. The disorder is characterized by comedones, painful inflammatory nodules, abscesses, dermal tunnels and scarring, with a predilection for intertriginous areas of the body (axillae, inguinal and anogenital regions). Recruitment of neutrophils to HS lesion sites may play an essential role in the development of the painful inflammatory nodules and abscesses that characterize the disease. This is a review of the major mediators involved in the recruitment of neutrophils to sites of active inflammation, including bacterial components (endotoxins, exotoxins, capsule fragments, etc.), the complement pathway anaphylatoxins C3a and C5a, tumour necrosis factor-alpha, interleukin (IL)-17, IL-8 (CXCL8), IL-36, IL-1, lipocalin-2, leukotriene B4, platelet-activating factor, kallikreins, matrix metalloproteinases, and myeloperoxidase inhibitors. Pharmacological manipulation of the various pathways involved in the process of neutrophil recruitment and activation could allow for successful control and stabilization of HS lesions and the remission of active, severe flares.
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Affiliation(s)
- S Narla
- Department of Dermatology, Henry Ford Hospital, Detroit, MI, USA
| | - M Azzam
- University of Nevada School of Medicine, Reno, NV, USA
| | - S Townsend
- Wayne State School of Medicine, Detroit, MI, USA
| | | | - A V Marzano
- Dermatology Unit, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Milan, Italy.,Department of Physiopathology and Transplantation, Università degli Studi di Milano, Milan, Italy
| | - A Alavi
- Division of Dermatology, Department of Medicine, Women's College Hospital, University of Toronto, Toronto, ON, Canada
| | - M A Lowes
- The Rockefeller University, New York, NY, USA
| | - I H Hamzavi
- Department of Dermatology, Henry Ford Hospital, Detroit, MI, USA
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174
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Kido T, Hachisuka E, Suka M, Yanagisawa H. Interleukin-4 Administration or Zinc Supplementation Is Effective in Preventing Zinc Deficiency-Induced Hemolytic Anemia and Splenomegaly. Biol Trace Elem Res 2021; 199:668-681. [PMID: 32405687 DOI: 10.1007/s12011-020-02172-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Accepted: 04/24/2020] [Indexed: 10/24/2022]
Abstract
Nutritional zinc deficiency aggravates inflammation, subsequently causing anemia and splenomegaly in rats; however, the mechanism underlying such splenomegaly remains poorly understood. Therefore, in this study, we aimed to elucidate the mechanisms underlying the splenomegaly and anemia occurring in zinc-deficient rats and investigate whether these effects of zinc deficiency could be reversed by interleukin (IL)-4 administration or zinc supplementation. Five-week-old male Sprague-Dawley rats were fed a standard diet; fed a zinc-deficient diet (n = 7 each) and injected with saline or IL-4; or fed a zinc-deficient diet for 6 weeks followed by a standard diet for 4 weeks thereafter. White blood cells, segmented neutrophils, platelets, CD4+ T cells, CD11b/c+ granulocytes, CINC/GRO+ cells, and myeloperoxidase-positive cells in the blood and spleen of the zinc-deficient rats were significantly higher than those in all the other groups. Conversely, red blood cells, hemoglobin, hematocrit, mean corpuscular volume, mean corpuscular hemoglobin, mean corpuscular hemoglobin concentration, lymphocytes, and CD8+ T cells in the blood of the zinc-deficient rats were significantly lower than those in the other groups. Furthermore, serum aspartate aminotransferase, lactate dehydrogenase, indirect bilirubin concentrations, and erythrocyte osmotic fragility in the zinc-deficient rats were significantly higher than those in the other groups. Moreover, zinc deficiency significantly decreased the GATA1 protein levels in the spleen. Collectively, these results indicate that zinc deficiency aggravates the inflammatory response and causes hemolytic anemia and splenomegaly. Importantly, IL-4 administration and zinc supplementation can reverse the zinc deficiency-induced hemolytic anemia and splenomegaly.
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Affiliation(s)
- Takamasa Kido
- Department of Public Health and Environmental Medicine, Faculty of Medicine, The Jikei University School of Medicine, 3-25-8 Nishishimbashi, Minato-ku, Tokyo, 105-8461, Japan
| | - Eri Hachisuka
- Department of Public Health and Environmental Medicine, Faculty of Medicine, The Jikei University School of Medicine, 3-25-8 Nishishimbashi, Minato-ku, Tokyo, 105-8461, Japan
| | - Machi Suka
- Department of Public Health and Environmental Medicine, Faculty of Medicine, The Jikei University School of Medicine, 3-25-8 Nishishimbashi, Minato-ku, Tokyo, 105-8461, Japan
| | - Hiroyuki Yanagisawa
- Department of Public Health and Environmental Medicine, Faculty of Medicine, The Jikei University School of Medicine, 3-25-8 Nishishimbashi, Minato-ku, Tokyo, 105-8461, Japan.
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175
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Mulder PPG, Vlig M, Boekema BKHL, Stoop MM, Pijpe A, van Zuijlen PPM, de Jong E, van Cranenbroek B, Joosten I, Koenen HJPM, Ulrich MMW. Persistent Systemic Inflammation in Patients With Severe Burn Injury Is Accompanied by Influx of Immature Neutrophils and Shifts in T Cell Subsets and Cytokine Profiles. Front Immunol 2021; 11:621222. [PMID: 33584717 PMCID: PMC7879574 DOI: 10.3389/fimmu.2020.621222] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2020] [Accepted: 12/11/2020] [Indexed: 12/14/2022] Open
Abstract
Severe burn injury causes local and systemic immune responses that can persist up to months, and can lead to systemic inflammatory response syndrome, organ damage and long-term sequalae such as hypertrophic scarring. To prevent these pathological conditions, a better understanding of the underlying mechanisms is essential. In this longitudinal study, we analyzed the temporal peripheral blood immune profile of 20 burn wound patients admitted to the intensive care by flow cytometry and secretome profiling, and compared this to data from 20 healthy subjects. The patient cohort showed signs of systemic inflammation and persistently high levels of pro-inflammatory soluble mediators, such as IL-6, IL-8, MCP-1, MIP-1β, and MIP-3α, were measured. Using both unsupervised and supervised flow cytometry techniques, we observed a continuous release of neutrophils and monocytes into the blood for at least 39 days. Increased numbers of immature neutrophils were present in peripheral blood in the first three weeks after injury (0.1–2.8 × 106/ml after burn vs. 5 × 103/ml in healthy controls). Total lymphocyte numbers did not increase, but numbers of effector T cells as well as regulatory T cells were increased from the second week onward. Within the CD4+ T cell population, elevated numbers of CCR4+CCR6- and CCR4+CCR6+ cells were found. Altogether, these data reveal that severe burn injury induced a persistent innate inflammatory response, including a release of immature neutrophils, and shifts in the T cell composition toward an overall more pro-inflammatory phenotype, thereby continuing systemic inflammation and increasing the risk of secondary complications.
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Affiliation(s)
- Patrick P G Mulder
- Preclinical Research, Association of Dutch Burn Centres (ADBC), Beverwijk, Netherlands.,Laboratory of Medical Immunology, Department of Laboratory Medicine, Radboud University Medical Center, Nijmegen, Netherlands
| | - Marcel Vlig
- Preclinical Research, Association of Dutch Burn Centres (ADBC), Beverwijk, Netherlands
| | - Bouke K H L Boekema
- Preclinical Research, Association of Dutch Burn Centres (ADBC), Beverwijk, Netherlands
| | | | - Anouk Pijpe
- Burn Center, Red Cross Hospital, Beverwijk, Netherlands
| | - Paul P M van Zuijlen
- Burn Center, Red Cross Hospital, Beverwijk, Netherlands.,Department of Plastic and Reconstructive Surgery, Red Cross Hospital, Beverwijk, Netherlands.,Department of Plastic, Reconstructive and Hand Surgery, Amsterdam Movement Sciences Amsterdam UMC, Location VUmc, Amsterdam, Netherlands.,Pediatric Surgical Centre, Emma Children's Hospital, Amsterdam UMC, University of Amsterdam, Vrije Universiteit, Amsterdam, Netherlands
| | - Evelien de Jong
- Burn Center, Red Cross Hospital, Beverwijk, Netherlands.,Department of Intensive Care, Red Cross Hospital, Beverwijk, Netherlands
| | - Bram van Cranenbroek
- Laboratory of Medical Immunology, Department of Laboratory Medicine, Radboud University Medical Center, Nijmegen, Netherlands
| | - Irma Joosten
- Laboratory of Medical Immunology, Department of Laboratory Medicine, Radboud University Medical Center, Nijmegen, Netherlands
| | - Hans J P M Koenen
- Laboratory of Medical Immunology, Department of Laboratory Medicine, Radboud University Medical Center, Nijmegen, Netherlands
| | - Magda M W Ulrich
- Preclinical Research, Association of Dutch Burn Centres (ADBC), Beverwijk, Netherlands.,Department of Plastic, Reconstructive and Hand Surgery, Amsterdam Movement Sciences Amsterdam UMC, Location VUmc, Amsterdam, Netherlands
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176
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Johnson WE, Odom A, Cintron C, Muthaiah M, Knudsen S, Joseph N, Babu S, Lakshminarayanan S, Jenkins DF, Zhao Y, Nankya E, Horsburgh CR, Roy G, Ellner J, Sarkar S, Salgame P, Hochberg NS. Comparing tuberculosis gene signatures in malnourished individuals using the TBSignatureProfiler. BMC Infect Dis 2021; 21:106. [PMID: 33482742 PMCID: PMC7821401 DOI: 10.1186/s12879-020-05598-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Accepted: 11/09/2020] [Indexed: 12/12/2022] Open
Abstract
Background Gene expression signatures have been used as biomarkers of tuberculosis (TB) risk and outcomes. Platforms are needed to simplify access to these signatures and determine their validity in the setting of comorbidities. We developed a computational profiling platform of TB signature gene sets and characterized the diagnostic ability of existing signature gene sets to differentiate active TB from LTBI in the setting of malnutrition. Methods We curated 45 existing TB-related signature gene sets and developed our TBSignatureProfiler software toolkit that estimates gene set activity using multiple enrichment methods and allows visualization of single- and multi-pathway results. The TBSignatureProfiler software is available through Bioconductor and on GitHub. For evaluation in malnutrition, we used whole blood gene expression profiling from 23 severely malnourished Indian individuals with TB and 15 severely malnourished household contacts with latent TB infection (LTBI). Severe malnutrition was defined as body mass index (BMI) < 16 kg/m2 in adults and based on weight-for-height Z scores in children < 18 years. Gene expression was measured using RNA-sequencing. Results The comparison and visualization functions from the TBSignatureProfiler showed that TB gene sets performed well in malnourished individuals; 40 gene sets had statistically significant discriminative power for differentiating TB from LTBI, with area under the curve ranging from 0.662–0.989. Three gene sets were not significantly predictive. Conclusion Our TBSignatureProfiler is a highly effective and user-friendly platform for applying and comparing published TB signature gene sets. Using this platform, we found that existing gene sets for TB function effectively in the setting of malnutrition, although differences in gene set applicability exist. RNA-sequencing gene sets should consider comorbidities and potential effects on diagnostic performance. Supplementary Information The online version contains supplementary material available at 10.1186/s12879-020-05598-z.
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Affiliation(s)
- W Evan Johnson
- Division of Computational Biomedicine, Boston University School of Medicine, Boston, MA, USA. .,Bioinformatics Program, Boston University, Boston, MA, USA. .,Division of Computational Biomedicine and Bioinformatics Program, Boston University, Boston, MA, USA.
| | - Aubrey Odom
- Division of Computational Biomedicine, Boston University School of Medicine, Boston, MA, USA.,Bioinformatics Program, Boston University, Boston, MA, USA.,Division of Computational Biomedicine and Bioinformatics Program, Boston University, Boston, MA, USA
| | | | | | | | - Noyal Joseph
- Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India
| | - Senbagavalli Babu
- Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India
| | | | - David F Jenkins
- Division of Computational Biomedicine, Boston University School of Medicine, Boston, MA, USA.,Bioinformatics Program, Boston University, Boston, MA, USA.,Division of Computational Biomedicine and Bioinformatics Program, Boston University, Boston, MA, USA
| | - Yue Zhao
- Division of Computational Biomedicine, Boston University School of Medicine, Boston, MA, USA.,Bioinformatics Program, Boston University, Boston, MA, USA.,Division of Computational Biomedicine and Bioinformatics Program, Boston University, Boston, MA, USA
| | - Ethel Nankya
- Division of Computational Biomedicine, Boston University School of Medicine, Boston, MA, USA.,Bioinformatics Program, Boston University, Boston, MA, USA.,Division of Computational Biomedicine and Bioinformatics Program, Boston University, Boston, MA, USA
| | - C Robert Horsburgh
- Department of Epidemiology, Boston University School of Public Health, Boston, MA, USA
| | - Gautam Roy
- Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India
| | - Jerrold Ellner
- Department of Medicine, Center for Emerging Pathogens, Rutgers New Jersey Medical School, Newark, NJ, USA
| | - Sonali Sarkar
- Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India
| | - Padmini Salgame
- Department of Medicine, Center for Emerging Pathogens, Rutgers New Jersey Medical School, Newark, NJ, USA
| | - Natasha S Hochberg
- Boston Medical Center, Boston, MA, USA.,Department of Epidemiology, Boston University School of Public Health, Boston, MA, USA.,Section of Infectious Diseases, Boston University School of Medicine, Boston, MA, USA
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177
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Lai KH, Chen PJ, Chen CC, Yang SH, El-Shazly M, Chang YC, Wu YH, Wu YH, Wang YH, Hsieh HL, Hwang TL. Lophatherum gracile Brongn. attenuates neutrophilic inflammation through inhibition of JNK and calcium. JOURNAL OF ETHNOPHARMACOLOGY 2021; 264:113224. [PMID: 32800928 DOI: 10.1016/j.jep.2020.113224] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 07/05/2020] [Accepted: 07/25/2020] [Indexed: 06/11/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Lophatherum gracile Brongn. (L. gracile) has been long used in traditional herbal medicine to clinically clear heat, disinhibit dampness, and treat inflammation. However, the effect of L. gracile on the activation of human neutrophils remains unclear. AIM OF THE STUDY The aim of current study is to investigate the anti-inflammatory properties of L. gracile extract (LGE) in N-formyl-methionyl-leucyl-phenylalanine (fMLF)-induced activation of human neutrophils. MATERIALS AND METHODS Superoxide anion generation and elastase release were estimated by spectrophotometry. A series of signaling pathways including mitogen-activated protein kinases (MAPKs) and protein kinase B (Akt), as well as calcium mobilization were studied by Western blot analysis and spectrofluorometry. RESULTS Our experimental results indicated that the nontoxic dosage of LGE does-dependently inhibited the fMLF-induced superoxide anion (O2•-) generation, elastase release, CD11b expression, adhesion, and chemotactic migration in human neutrophils. LGE selectively inhibited the fMLF-induced phosphorylation of JNK but not p38, ERK, or Akt in human neutrophils. LGE also decreased the intracellular Ca2+ levels ([Ca2+]i) in fMLF-activated human neutrophils. However, a specific JNK inhibitor inhibited the fMLF-induced O2•- generation and CD11b expression, but it had no effect on [Ca2+]i in human neutrophils. CONCLUSIONS LGE exhibited anti-inflammatory activities in fMLF-activated human neutrophils. The pharmacological mechanisms of LGE-repressed neutrophilic inflammation were through two independent pathways, JNK signaling and calcium mobilization. Our results suggested that LGE holds the potential to be developed as an anti-inflammatory botanical medicine.
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Affiliation(s)
- Kuei-Hung Lai
- Research Center for Chinese Herbal Medicine, Graduate Institute of Health Industry Technology, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan, 33303, Taiwan; Graduate Institute of Pharmacognosy, College of Pharmacy, Taipei Medical University, Taipei, 11031, Taiwan.
| | - Po-Jen Chen
- Department of Cosmetic Science, Providence University, Taichung, 43301, Taiwan.
| | - Chih-Chuan Chen
- Graduate Institute of Natural Products, School of Traditional Chinese Medicine, Chang Gung University, Taoyuan, 33302, Taiwan.
| | - Sien-Hung Yang
- Center for Traditional Chinese Medicine, Chang Gung Memorial Hospital, Taoyuan, 33305, Taiwan; School of Traditional Chinese Medicine, Chang Gung University, Taoyuan, 33302, Taiwan.
| | - Mohamed El-Shazly
- Department of Pharmacognosy and Natural Products Chemistry, Faculty of Pharmacy, Ain-Shams University, Organization of African Unity Street, Abassia, Cairo, 11566, Egypt; Department of Pharmaceutical Biology, Faculty of Pharmacy and Biotechnology, German University in Cairo, Cairo, 11432, Egypt.
| | - Yu-Chia Chang
- Research Center for Chinese Herbal Medicine, Graduate Institute of Health Industry Technology, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan, 33303, Taiwan.
| | - Yi-Hsuan Wu
- Research Center for Chinese Herbal Medicine, Graduate Institute of Health Industry Technology, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan, 33303, Taiwan.
| | - Yi-Hsiu Wu
- Graduate Institute of Natural Products, School of Traditional Chinese Medicine, Chang Gung University, Taoyuan, 33302, Taiwan.
| | - Yi-Hsuan Wang
- Graduate Institute of Natural Products, School of Traditional Chinese Medicine, Chang Gung University, Taoyuan, 33302, Taiwan.
| | - Hsi-Lung Hsieh
- Research Center for Chinese Herbal Medicine, Graduate Institute of Health Industry Technology, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan, 33303, Taiwan; Department of Nursing, Division of Basic Medical Sciences, Chang Gung University of Science and Technology, Taoyuan, 33303, Taiwan; Department of Neurology, Chang Gung Memorial Hospital, Taoyuan, 33305, Taiwan.
| | - Tsong-Long Hwang
- Research Center for Chinese Herbal Medicine, Graduate Institute of Health Industry Technology, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan, 33303, Taiwan; Graduate Institute of Natural Products, School of Traditional Chinese Medicine, Chang Gung University, Taoyuan, 33302, Taiwan; Research Center for Food and Cosmetic Safety, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan, 33303, Taiwan; Department of Anaesthesiology, Chang Gung Memorial Hospital, Taoyuan, 33305, Taiwan; Department of Chemical Engineering, Ming Chi University of Technology, New Taipei City, 24301, Taiwan.
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178
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Kiss N, Minderjahn M, Reismann J, Svensson J, Wester T, Hauptmann K, Schad M, Kallarackal J, von Bernuth H, Reismann M. Use of gene expression profiling to identify candidate genes for pretherapeutic patient classification in acute appendicitis. BJS Open 2021; 5:6073400. [PMID: 33609379 PMCID: PMC7893459 DOI: 10.1093/bjsopen/zraa045] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 10/06/2020] [Accepted: 10/24/2020] [Indexed: 12/11/2022] Open
Abstract
Background Phlegmonous and gangrenous appendicitis represent independent pathophysiological entities with different clinical courses ranging from spontaneous resolution to septic disease. However, reliable predictive methods for these clinical phenotypes have not yet been established. In an attempt to provide pathophysiological insights into the matter, a genomewide gene expression analysis was undertaken in patients with acute appendicitis. Methods Peripheral blood mononuclear cells were isolated and, after histological confirmation of PA or GA, analysed for genomewide gene expression profiling using RNA microarray technology and subsequent pathway analysis. Results Samples from 29 patients aged 7–17 years were included. Genomewide gene expression analysis was performed on 13 samples of phlegmonous and 16 of gangrenous appendicitis. From a total of 56 666 genes, 3594 were significantly differently expressed. Distinct interaction between T and B cells in the phlegmonous appendicitis group was suggested by overexpression of T cell receptor α and β subunits, CD2, CD3, MHC II, CD40L, and the B cell markers CD72 and CD79, indicating an antiviral mechanism. In the gangrenous appendicitis group, expression of genes delineating antibacterial mechanisms was found. Conclusion These results provide evidence for different and independent gene expression in phlegmonous and gangrenous appendicitis in general, but also suggest distinct immunological patterns for the respective entities. In particular, the findings are compatible with previous evidence of spontaneous resolution in phlegmonous and progressive disease in gangrenous appendicitis.
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Affiliation(s)
- N Kiss
- Department of Paediatric Surgery, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - M Minderjahn
- Department of Paediatric Surgery, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - J Reismann
- Department of Paediatric Surgery, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - J Svensson
- Department of Paediatric Surgery, Astrid Lindgren Children's Hospital, Karolinska University Hospital, Stockholm, Sweden
| | - T Wester
- Department of Paediatric Surgery, Astrid Lindgren Children's Hospital, Karolinska University Hospital, Stockholm, Sweden
| | - K Hauptmann
- Institute of Pathology, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - M Schad
- OakLabs, Hennigsdorf, Germany
| | | | - H von Bernuth
- Department of Paediatric Pulmonology and Immunology, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - M Reismann
- Department of Paediatric Surgery, Charité - Universitätsmedizin Berlin, Berlin, Germany
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179
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Klopf J, Brostjan C, Eilenberg W, Neumayer C. Neutrophil Extracellular Traps and Their Implications in Cardiovascular and Inflammatory Disease. Int J Mol Sci 2021; 22:ijms22020559. [PMID: 33429925 PMCID: PMC7828090 DOI: 10.3390/ijms22020559] [Citation(s) in RCA: 121] [Impact Index Per Article: 40.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 01/04/2021] [Accepted: 01/07/2021] [Indexed: 02/07/2023] Open
Abstract
Neutrophils are primary effector cells of innate immunity and fight infection by phagocytosis and degranulation. Activated neutrophils also release neutrophil extracellular traps (NETs) in response to a variety of stimuli. These NETs are net-like complexes composed of cell-free DNA, histones and neutrophil granule proteins. Besides the evolutionarily conserved mechanism to capture and eliminate pathogens, NETs are also associated with pathophysiological processes of various diseases. Here, we elucidate the mechanisms of NET formation and their different implications in disease. We focused on autoinflammatory and cardiovascular disorders as the leading cause of death. Neutrophil extracellular traps are not only present in various cardiovascular diseases but play an essential role in atherosclerotic plaque formation, arterial and venous thrombosis, as well as in the development and progression of abdominal aortic aneurysms. Furthermore, NETosis can be considered as a source of autoantigens and maintains an inflammatory milieu promoting autoimmune diseases. Indeed, there is further need for research into the balance between NET induction, inhibition, and degradation in order to pharmacologically target NETs and their compounds without impairing the patient’s immune defense. This review may be of interest to both basic scientists and clinicians to stimulate translational research and innovative clinical approaches.
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180
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Ischemia-reperfusion Injury in the Transplanted Lung: A Literature Review. Transplant Direct 2021; 7:e652. [PMID: 33437867 PMCID: PMC7793349 DOI: 10.1097/txd.0000000000001104] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 11/04/2020] [Accepted: 11/06/2020] [Indexed: 02/07/2023] Open
Abstract
Lung ischemia-reperfusion injury (LIRI) and primary graft dysfunction are leading causes of morbidity and mortality among lung transplant recipients. Although extensive research endeavors have been undertaken, few preventative and therapeutic treatments have emerged for clinical use. Novel strategies are still needed to improve outcomes after lung transplantation. In this review, we discuss the underlying mechanisms of transplanted LIRI, potential modifiable targets, current practices, and areas of ongoing investigation to reduce LIRI and primary graft dysfunction in lung transplant recipients.
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181
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Rawat K, Syeda S, Shrivastava A. Neutrophil-derived granule cargoes: paving the way for tumor growth and progression. Cancer Metastasis Rev 2021; 40:221-244. [PMID: 33438104 PMCID: PMC7802614 DOI: 10.1007/s10555-020-09951-1] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Accepted: 12/22/2020] [Indexed: 01/31/2023]
Abstract
Neutrophils are the key cells of our innate immune system mediating host defense via a range of effector functions including phagocytosis, degranulation, and NETosis. For this, they employ an arsenal of anti-microbial cargoes packed in their readily mobilizable granule subsets. Notably, the release of granule content is tightly regulated; however, under certain circumstances, their unregulated release can aggravate tissue damage and could be detrimental to the host. Several constituents of neutrophil granules have also been associated with various inflammatory diseases including cancer. In cancer setting, their excessive release may modulate tissue microenvironment which ultimately leads the way for tumor initiation, growth and metastasis. Neutrophils actively infiltrate within tumor tissues, wherein they show diverse phenotypic and functional heterogeneity. While most studies are focused at understanding the phenotypic heterogeneity of neutrophils, their functional heterogeneity, much of which is likely orchestrated by their granule cargoes, is beginning to emerge. Therefore, a better understanding of neutrophil granules and their cargoes will not only shed light on their diverse role in cancer but will also reveal them as novel therapeutic targets. This review provides an overview on existing knowledge of neutrophil granules and detailed insight into the pathological relevance of their cargoes in cancer. In addition, we also discuss the therapeutic approach for targeting neutrophils or their microenvironment in disease setting that will pave the way forward for future research.
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Affiliation(s)
- Kavita Rawat
- grid.8195.50000 0001 2109 4999Department of Zoology, University of Delhi, Delhi, 110007 India
| | - Saima Syeda
- grid.8195.50000 0001 2109 4999Department of Zoology, University of Delhi, Delhi, 110007 India
| | - Anju Shrivastava
- grid.8195.50000 0001 2109 4999Department of Zoology, University of Delhi, Delhi, 110007 India
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182
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Ulfig A, Leichert LI. The effects of neutrophil-generated hypochlorous acid and other hypohalous acids on host and pathogens. Cell Mol Life Sci 2021; 78:385-414. [PMID: 32661559 PMCID: PMC7873122 DOI: 10.1007/s00018-020-03591-y] [Citation(s) in RCA: 109] [Impact Index Per Article: 36.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 06/21/2020] [Accepted: 07/01/2020] [Indexed: 12/15/2022]
Abstract
Neutrophils are predominant immune cells that protect the human body against infections by deploying sophisticated antimicrobial strategies including phagocytosis of bacteria and neutrophil extracellular trap (NET) formation. Here, we provide an overview of the mechanisms by which neutrophils kill exogenous pathogens before we focus on one particular weapon in their arsenal: the generation of the oxidizing hypohalous acids HOCl, HOBr and HOSCN during the so-called oxidative burst by the enzyme myeloperoxidase. We look at the effects of these hypohalous acids on biological systems in general and proteins in particular and turn our attention to bacterial strategies to survive HOCl stress. HOCl is a strong inducer of protein aggregation, which bacteria can counteract by chaperone-like holdases that bind unfolding proteins without the need for energy in the form of ATP. These chaperones are activated by HOCl through thiol oxidation (Hsp33) or N-chlorination of basic amino acid side-chains (RidA and CnoX) and contribute to bacterial survival during HOCl stress. However, neutrophil-generated hypohalous acids also affect the host system. Recent studies have shown that plasma proteins act not only as sinks for HOCl, but get actively transformed into modulators of the cellular immune response through N-chlorination. N-chlorinated serum albumin can prevent aggregation of proteins, stimulate immune cells, and act as a pro-survival factor for immune cells in the presence of cytotoxic antigens. Finally, we take a look at the emerging role of HOCl as a potential signaling molecule, particularly its role in neutrophil extracellular trap formation.
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Affiliation(s)
- Agnes Ulfig
- Ruhr University Bochum, Institute for Biochemistry and Pathobiochemistry-Microbial Biochemistry, Universitätsstrasse 150, 44780, Bochum, Germany
| | - Lars I Leichert
- Ruhr University Bochum, Institute for Biochemistry and Pathobiochemistry-Microbial Biochemistry, Universitätsstrasse 150, 44780, Bochum, Germany.
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183
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Seree-Aphinan C, Vichitkunakorn P, Navakanitworakul R, Khwannimit B. Distinguishing Sepsis From Infection by Neutrophil Dysfunction: A Promising Role of CXCR2 Surface Level. Front Immunol 2020; 11:608696. [PMID: 33424860 PMCID: PMC7785795 DOI: 10.3389/fimmu.2020.608696] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Accepted: 11/19/2020] [Indexed: 12/24/2022] Open
Abstract
Sepsis is one of the well-established diseases with specific patterns of neutrophil dysfunctions. Previous studies demonstrated sepsis-related neutrophil dysfunctions in comparison with subjects without infection. Since sepsis and infection are recently recognized as distinctive processes, whether these neutrophil dysfunctions are associated with sepsis or infection are not known. Therefore, we longitudinally compared neutrophil functions, widely-cited as exhibiting sepsis-related changes, between patients with septic shock and infection. The surface level of cluster of differentiation 64 (CD64), C-C motif chemokine receptor 2 (CCR2), C-X-C motif chemokine receptor 2 (CXCR2); apoptosis; and NETosis were measured from peripheral blood neutrophils for seven consecutive days using flow cytometry. The between-group comparisons of neutrophil functions were made both on a day-by-day basis and as linear regression between time and measured neutrophil functions (sepsis status included as model predictors). Our study found that, among neutrophil functions studied, only CXCR2 surface level is associated with sepsis. At disease onset, CXCR2 level decrease, with a dose-response relationship with clinical severity. Its level reverts to resemble infected patients by the end of the week. The relationship between CD64 surface level, CCR2 surface level, NETosis, and sepsis are mediated through the effect of infection. Apoptosis activity between these groups are similar, hence, not sepsis-related.
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Affiliation(s)
- Chutima Seree-Aphinan
- Department of Internal Medicine, Faculty of Medicine, Prince of Songkla University, Songkhla, Thailand
| | - Polathep Vichitkunakorn
- Department of Family and Preventive Medicine, Faculty of Medicine, Prince of Songkla University, Songkhla, Thailand
| | | | - Bodin Khwannimit
- Division of Critical Care Medicine, Department of Internal Medicine, Faculty of Medicine, Prince of Songkla University, Songkhla, Thailand
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184
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Paul AM, Cheng-Campbell M, Blaber EA, Anand S, Bhattacharya S, Zwart SR, Crucian BE, Smith SM, Meller R, Grabham P, Beheshti A. Beyond Low-Earth Orbit: Characterizing Immune and microRNA Differentials following Simulated Deep Spaceflight Conditions in Mice. iScience 2020; 23:101747. [PMID: 33376970 PMCID: PMC7756144 DOI: 10.1016/j.isci.2020.101747] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 10/16/2020] [Accepted: 10/26/2020] [Indexed: 12/21/2022] Open
Abstract
Spaceflight missions can cause immune system dysfunction in astronauts with little understanding of immune outcomes in deep space. This study assessed immune responses in mice following ground-based, simulated deep spaceflight conditions, compared with data from astronauts on International Space Station missions. For ground studies, we simulated microgravity using the hindlimb unloaded mouse model alone or in combination with acute simulated galactic cosmic rays or solar particle events irradiation. Immune profiling results revealed unique immune diversity following each experimental condition, suggesting each stressor results in distinct circulating immune responses, with clear consequences for deep spaceflight. Circulating plasma microRNA sequence analysis revealed involvement in immune system dysregulation. Furthermore, a large astronaut cohort showed elevated inflammation during low-Earth orbit missions, thereby supporting our simulated ground experiments in mice. Herein, circulating immune biomarkers are defined by distinct deep space irradiation types coupled to simulated microgravity and could be targets for future space health initiatives.
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Affiliation(s)
- Amber M. Paul
- Universities Space Research Association, Columbia, MD 21046, USA
- Space Biosciences Division, NASA Ames Research Center, Moffett Field, CA 94043, USA
| | - Margareth Cheng-Campbell
- Department of Biomedical Engineering, Center for Biotechnology & Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, USA
| | - Elizabeth A. Blaber
- Space Biosciences Division, NASA Ames Research Center, Moffett Field, CA 94043, USA
- Department of Biomedical Engineering, Center for Biotechnology & Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, USA
| | - Sulekha Anand
- Department of Biological Sciences, San Jose State University, San Jose, CA 95112, USA
| | | | - Sara R. Zwart
- Department of Preventive Medicine and Community Health, University of Texas Medical Branch, Galveston, TX 77555, USA
| | | | | | - Robert Meller
- Department of Neurobiology/Pharmacology, Morehouse School of Medicine, Atlanta, GA 30310, USA
| | - Peter Grabham
- Center for Radiological Research, Columbia University, New York, NY 10027, USA
| | - Afshin Beheshti
- KBR, Space Biosciences Division, NASA Ames Research Center, Moffett Field, CA 94043, USA
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185
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Boyer H, Mortimore G. Anti-neutrophil cytoplasmic antibodies-associated vasculitis: a guide and case study. BRITISH JOURNAL OF NURSING (MARK ALLEN PUBLISHING) 2020; 29:1333-1340. [PMID: 33325285 DOI: 10.12968/bjon.2020.29.22.1333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Vasculitis is a relatively rare and poorly understood condition causing inflammation of the blood vessels, which in turn can affect a patient's respiratory and renal systems. In some cases, ocular involvement can cause loss of sight and hearing loss may also be a red flag for vasculitis, which, if not treated early, can cause complete hearing loss. Anti-neutrophil cytoplasmic antibodies (ANCA)-associated vasculitis (AAV) is a group comprising granulomatosis with polyangiitis (GPA), microscopic polyangiitis (MPA) and eosinophilic granulomatosis (EGP). AAV is fatal if untreated and as increased risk escalates with age, coupled with a decline in renal function, these are the principal predictors of poor outcome. Vital roles for nursing vasculitis patients lie in managing inflammation and pain, as these distressing symptoms are prevalent in the disease. Because of the multiple complications that can occur with vasculitis, treatment-related information is a high priority for these patients. As nurses are well placed to deliver information, value lies in their role in reducing the negative impacts on treatment regimens and compliance that accompany patients' poor insight into their condition.
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Affiliation(s)
- Helena Boyer
- Trainee Advanced Clinical Practitioner, Royal Derby Hospital
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186
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Stakenborg M, Verstockt B, Meroni E, Goverse G, De Simone V, Verstockt S, Di Matteo M, Czarnewski P, Villablanca EJ, Ferrante M, Boeckxstaens GE, Mazzone M, Vermeire S, Matteoli G. Neutrophilic HGF-MET Signalling Exacerbates Intestinal Inflammation. J Crohns Colitis 2020; 14:1748-1758. [PMID: 32556102 DOI: 10.1093/ecco-jcc/jjaa121] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
BACKGROUND AND AIMS Ulcerative colitis [UC] is associated with excessive neutrophil infiltration and collateral tissue damage, but the link is not yet completely understood. Since c-MET receptor tyrosine kinase [MET] is required for neutrophil chemoattraction and cytotoxicity in response to its ligand hepatocyte growth factor [HGF], we aimed to identify the function of HGF-MET signalling in neutrophils in UC patients and in mice during intestinal inflammation. METHODS Serum and colonic biopsies from healthy controls and UC patients with active [Mayo endoscopic subscore 2-3] and inactive [Mayo endoscopic subscore 0-1] disease were collected to assess the level of serum and colonic HGF. Disease progression and immune cell infiltration were assessed during dextran sodium sulphate [DSS] colitis in wild-type and MRP8-Cre MET-LoxP mice. RESULTS Increased mucosal HGF expression was detected in patients with active UC, and in mice during the inflammatory phase of DSS colitis. Similarly, serum HGF was significantly increased in active UC patients and positively correlated with C-reactive protein and blood neutrophil counts. Flow cytometric analysis also demonstrated an upregulation of colonic MET+ neutrophils during DSS colitis. Genetic ablation of MET in neutrophils reduced the severity of DSS-induced colitis. Concomitantly, there was a decreased number of TH17 cells, which could be due to a decreased production of IL-1β by MET-deficient neutrophils. CONCLUSIONS These data highlight the central role of neutrophilic HGF-MET signalling in exacerbating damage during intestinal inflammation. Hence, selective blockade of this pathway in neutrophils could be considered as a novel therapeutic approach in UC.
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Affiliation(s)
- Michelle Stakenborg
- Department of Chronic Diseases, Metabolism and Ageing [CHROMETA], Translational Research Center for Gastrointestinal Disorders [TARGID], KU Leuven, Belgium
| | - Bram Verstockt
- Department of Chronic Diseases, Metabolism and Ageing [CHROMETA], Translational Research Center for Gastrointestinal Disorders [TARGID], KU Leuven, Belgium.,Department of Gastroenterology and Hepatology, University Hospitals Leuven, Leuven, Belgium
| | - Elisa Meroni
- Department of Chronic Diseases, Metabolism and Ageing [CHROMETA], Translational Research Center for Gastrointestinal Disorders [TARGID], KU Leuven, Belgium
| | - Gera Goverse
- Department of Chronic Diseases, Metabolism and Ageing [CHROMETA], Translational Research Center for Gastrointestinal Disorders [TARGID], KU Leuven, Belgium
| | - Veronica De Simone
- Department of Chronic Diseases, Metabolism and Ageing [CHROMETA], Translational Research Center for Gastrointestinal Disorders [TARGID], KU Leuven, Belgium
| | - Sare Verstockt
- Department of Chronic Diseases, Metabolism and Ageing [CHROMETA], Translational Research Center for Gastrointestinal Disorders [TARGID], KU Leuven, Belgium
| | - Mario Di Matteo
- Laboratory of Tumor Inflammation and Angiogenesis, Center for Cancer Biology, VIB, Leuven, Belgium.,Laboratory of Tumor Inflammation and Angiogenesis, Department of Oncology, Center for Cancer Biology, KU Leuven, Leuven, Belgium
| | - Paulo Czarnewski
- Department of Medicine, Immunology and Allergy division, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
| | - Eduardo J Villablanca
- Department of Medicine, Immunology and Allergy division, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
| | - Marc Ferrante
- Department of Chronic Diseases, Metabolism and Ageing [CHROMETA], Translational Research Center for Gastrointestinal Disorders [TARGID], KU Leuven, Belgium.,Department of Gastroenterology and Hepatology, University Hospitals Leuven, Leuven, Belgium
| | - Guy E Boeckxstaens
- Department of Chronic Diseases, Metabolism and Ageing [CHROMETA], Translational Research Center for Gastrointestinal Disorders [TARGID], KU Leuven, Belgium
| | - Massimiliano Mazzone
- Laboratory of Tumor Inflammation and Angiogenesis, Center for Cancer Biology, VIB, Leuven, Belgium.,Laboratory of Tumor Inflammation and Angiogenesis, Department of Oncology, Center for Cancer Biology, KU Leuven, Leuven, Belgium
| | - Séverine Vermeire
- Department of Chronic Diseases, Metabolism and Ageing [CHROMETA], Translational Research Center for Gastrointestinal Disorders [TARGID], KU Leuven, Belgium.,Department of Gastroenterology and Hepatology, University Hospitals Leuven, Leuven, Belgium
| | - Gianluca Matteoli
- Department of Chronic Diseases, Metabolism and Ageing [CHROMETA], Translational Research Center for Gastrointestinal Disorders [TARGID], KU Leuven, Belgium
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187
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Peruzzi B, Bencini S, Capone M, Mazzoni A, Maggi L, Salvati L, Vanni A, Orazzini C, Nozzoli C, Morettini A, Poggesi L, Pieralli F, Peris A, Bartoloni A, Vannucchi AM, Liotta F, Caporale R, Cosmi L, Annunziato F. Quantitative and qualitative alterations of circulating myeloid cells and plasmacytoid DC in SARS-CoV-2 infection. Immunology 2020; 161:345-353. [PMID: 32870529 PMCID: PMC7692244 DOI: 10.1111/imm.13254] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Revised: 08/19/2020] [Accepted: 08/21/2020] [Indexed: 12/12/2022] Open
Abstract
SARS-CoV-2 is responsible for a new infectious disease (COVID-19) in which individuals can either remain asymptomatic or progress from mild to severe clinical conditions including acute respiratory distress syndrome and multiple organ failure. The immune mechanisms that potentially orchestrate the pathology in SARS-CoV-2 infection are complex and only partially understood. There is still paucity of data on the features of myeloid cells involved in this viral infection. For this reason, we investigated the different activation status profiles and the subset distribution of myeloid cells and their correlation with disease progression in 40 COVID-19 patients at different stages of disease. COVID-19 patients showed a decrease in the absolute number of plasmacytoid and myeloid dendritic cells, different subset distribution of monocytes and different activation patterns of both monocytes and neutrophils, coupled to a significant reduction of HLA-DR monocyte levels. We found that some of these alterations are typical of all COVID-19 patients, while some others vary at different stages of the disease and correlate with biochemical parameters of inflammation. Collectively, these data suggest that not only the lymphoid, but also the myeloid compartment, is severely affected by SARS-CoV-2 infection.
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Affiliation(s)
- Benedetta Peruzzi
- Flow Cytometry Diagnostic Center and Immunotherapy (CDCI)AOU CareggiFlorenceItaly
| | - Sara Bencini
- Flow Cytometry Diagnostic Center and Immunotherapy (CDCI)AOU CareggiFlorenceItaly
| | - Manuela Capone
- Department of Clinical and Experimental MedicineUniversity of FlorenceFlorenceItaly
| | - Alessio Mazzoni
- Department of Clinical and Experimental MedicineUniversity of FlorenceFlorenceItaly
| | - Laura Maggi
- Department of Clinical and Experimental MedicineUniversity of FlorenceFlorenceItaly
| | - Lorenzo Salvati
- Department of Clinical and Experimental MedicineUniversity of FlorenceFlorenceItaly
| | - Anna Vanni
- Department of Clinical and Experimental MedicineUniversity of FlorenceFlorenceItaly
| | - Chiara Orazzini
- Flow Cytometry Diagnostic Center and Immunotherapy (CDCI)AOU CareggiFlorenceItaly
| | | | | | - Loredana Poggesi
- Department of Clinical and Experimental MedicineUniversity of FlorenceFlorenceItaly
- Internal Medicine Unit 3AOU CareggiFlorenceItaly
| | | | | | - Alessandro Bartoloni
- Department of Clinical and Experimental MedicineUniversity of FlorenceFlorenceItaly
- Infectious and Tropical Diseases UnitAOU CareggiFlorenceItaly
| | - Alessandro Maria Vannucchi
- Department of Clinical and Experimental MedicineUniversity of FlorenceFlorenceItaly
- Center for Research and Innovation on Myeloproliferative Neoplasms (CRIMM)SOD HematologyUniversity of Florence and AOU CareggiFlorenceItaly
| | - Francesco Liotta
- Department of Clinical and Experimental MedicineUniversity of FlorenceFlorenceItaly
- Immunology and Cell Therapy UnitAOU CareggiFlorenceItaly
| | - Roberto Caporale
- Flow Cytometry Diagnostic Center and Immunotherapy (CDCI)AOU CareggiFlorenceItaly
| | - Lorenzo Cosmi
- Department of Clinical and Experimental MedicineUniversity of FlorenceFlorenceItaly
- Immunology and Cell Therapy UnitAOU CareggiFlorenceItaly
| | - Francesco Annunziato
- Flow Cytometry Diagnostic Center and Immunotherapy (CDCI)AOU CareggiFlorenceItaly
- Department of Clinical and Experimental MedicineUniversity of FlorenceFlorenceItaly
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188
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Clark SE, Schmidt RL, Aguilera ER, Lenz LL. IL-10-producing NK cells exacerbate sublethal Streptococcus pneumoniae infection in the lung. Transl Res 2020; 226:70-82. [PMID: 32634590 PMCID: PMC7572800 DOI: 10.1016/j.trsl.2020.07.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 06/27/2020] [Accepted: 07/01/2020] [Indexed: 02/07/2023]
Abstract
Lung inflammation is tightly controlled to balance microbial clearance with the tissue damage that accompanies this response. Bacterial pathogens including Streptococcus pneumoniae (S. pneumoniae) modulate immune regulation by promoting secretion of the anti-inflammatory cytokine IL-10. The important cellular sources of IL-10 that impact protection against different bacterial infections are not well characterized. We find that S. pneumoniaeactivates IL-10 secretion from natural killer (NK) cells in the lung, which restrict host protection in a mouse model of sublethal infection. Direct transfer of wild-type NK cells into the lungs of IL-10-deficient mice drives bacterial expansion, identifying NK cells as a critical source of IL-10 promoting S. pneumoniae infection. The S. pneumoniae virulence protein Spr1875 was found to elicit NK cell IL-10 production in purified cells and in the lungs of live animals. These findings reveal therapeutic targets to combat bacterial-driven immune regulation in the lung.
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Affiliation(s)
- Sarah E Clark
- Department of Otolaryngology, University of Colorado School of Medicine, Aurora, Colorado.
| | - Rebecca L Schmidt
- Department of Biomedical Sciences, National Jewish Health, Denver, Colorado; Department of Biology and Chemistry, Upper Iowa University, Fayette, Iowa
| | - Elizabeth R Aguilera
- Department of Immunology and Microbiology, University of Colorado School of Medicine, Aurora, Colorado
| | - Laurel L Lenz
- Department of Biomedical Sciences, National Jewish Health, Denver, Colorado; Department of Immunology and Microbiology, University of Colorado School of Medicine, Aurora, Colorado
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189
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Evani SJ, Karna SLR, Seshu J, Leung KP. Pirfenidone regulates LPS mediated activation of neutrophils. Sci Rep 2020; 10:19936. [PMID: 33203891 PMCID: PMC7672086 DOI: 10.1038/s41598-020-76271-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Accepted: 09/24/2020] [Indexed: 12/16/2022] Open
Abstract
Excessive inflammation or its absence may result in impaired wound healing. Neutrophils are among the first innate immune cells to arrive at the injury site. They participate in infection control and debris removal to initiate healing. If not timely resolved, neutrophils can cause excessive tissue inflammation and damage. Drugs with anti-inflammatory and anti-fibrotic effects are of promise for improving healing by balancing the primary defensive functions and excessive tissue damage actions. Of interest, pirfenidone (Pf), an FDA approved anti-fibrotic drug to treat idiopathic pulmonary fibrosis, has been shown to ameliorate inflammation in several animal models including mouse deep partial-thickness burn wounds. However, there is a lack of mechanistic insights into Pf drug action on inflammatory cells such as neutrophils. Here, we examined the treatment effects of Pf on LPS-stimulated neutrophils as a model of non-sterile inflammation. Firstly, Pf reduced chemotaxis and production of pro-inflammatory ROS, cytokines, and chemokines by LPS-activated neutrophils. Secondly, Pf increased anti-inflammatory IL-1RA and reduced neutrophil degranulation, phagocytosis, and NETosis. Thirdly, Pf affected downstream signaling kinases which might directly or indirectly influence neutrophil responses to LPS. In conclusion, the results suggest that Pf lessens the inflammatory phenotypes of LPS-activated neutrophils.
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Affiliation(s)
- Shankar J Evani
- Division of Combat Wound Repair, U.S. Army Institute of Surgical Research, 3698 Chambers Pass, Building 3610, JBSA Fort Sam Houston, San Antonio, TX, 78234-7767, USA
| | - S L Rajasekhar Karna
- Division of Combat Wound Repair, U.S. Army Institute of Surgical Research, 3698 Chambers Pass, Building 3610, JBSA Fort Sam Houston, San Antonio, TX, 78234-7767, USA
| | - Janakiram Seshu
- South Texas Center for Emerging Infectious Diseases (STCEID) and Department of Biology, The University of Texas at San Antonio, One UTSA Circle, San Antonio, TX, USA
| | - Kai P Leung
- Division of Combat Wound Repair, U.S. Army Institute of Surgical Research, 3698 Chambers Pass, Building 3610, JBSA Fort Sam Houston, San Antonio, TX, 78234-7767, USA.
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190
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Das U, Bhuniya A, Roy AK, Gmeiner WH, Ghosh S. Hairpin Oligonucleotide Can Functionalize Gold Nanorods for in Vivo Application Delivering Cytotoxic Nucleotides and Curcumin: A Comprehensive Study in Combination with Near-Infrared Laser. ACS OMEGA 2020; 5:28463-28474. [PMID: 33195896 PMCID: PMC7658950 DOI: 10.1021/acsomega.0c02288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Accepted: 09/30/2020] [Indexed: 06/11/2023]
Abstract
We prepared a multimodality nanocomplex by functionalizing gold nanorods (GNRs) with a cytotoxic nucleoside, 5-fluoro-2'-deoxyuridine (FdU) containing a DNA hairpin, along with complexation of pleiotropic molecule curcumin. Conjugates were investigated for anti-tumor activity using an Ehrlich carcinoma model in combination with 808 nm laser irradiation. We demonstrated that hairpin-functionalized GNRs are suitable for intravenous administration, including delivery of cytotoxic nucleotides and curcumin. Curcumin binding with FdU-hairpin-functionalized GNRs displayed improved anti-tumor activity in part by inducing a lymphocyte-mediated immune response. The complex showed notable photothermal activity in vitro; however, 808 nm laser irradiation of the tumor following treatment with the complex did not increase the anti-tumor effect significantly. Biodistribution studies depicted that the nanoconjugates localized primarily in the sinusoidal structures of the liver and spleen with minimal tumor accumulation. Curcumin complexation alleviated the reduction in the RBC count that was observed for the conjugate without curcumin, especially in combination with laser irradiation. Localization of FdU-hairpin-GNR conjugates in the liver and spleen evoked an inflammatory response, which was mitigated by curcumin complexation. However, no functional abnormality was found in the liver in any case. Curcumin binding also notably decreased nanoconjugate accumulation in lungs and significantly reduced inflammation. Biodistribution studies were consistent with previous reports, suggesting that optimization of the GNR size and surface coating is required for more efficient tumor localization via the enhanced permeability and retention (EPR) effect. Our studies demonstrate that DNA/RNA hairpins are suitable for GNR surface functionalization and enable delivery of cytotoxic nucleotides as well as curcumin in vivo with potential for synergistic anti-cancer therapy.
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Affiliation(s)
- Upasana Das
- Department
of Anti-Cancer Drug Development and Chemotherapy, Chittaranjan National Cancer Institute, 37 S.P. Mukherjee Road, Kolkata 700026, India
| | - Avishek Bhuniya
- Department
of Immunoregulation and Immunodiagnostics, Chittaranjan National Cancer Institute, 37 S.P. Mukherjee Road, Kolkata 700026, India
| | - Anup K. Roy
- Department
of Pathology, Nil Ratan Sircar Medical College
and Hospital, Kolkata 700014, India
| | - William H. Gmeiner
- Department
of Cancer Biology, Wake Forest School of
Medicine, Winston-Salem, North Carolina 27157, United States
| | - Supratim Ghosh
- Department
of Anti-Cancer Drug Development and Chemotherapy, Chittaranjan National Cancer Institute, 37 S.P. Mukherjee Road, Kolkata 700026, India
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191
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Fujimura S, Higuchi Y, Usami Y, Yamaura M, Higuchi T, Terasawa F, Okumura N. Changes in serum citrullinated fibrinogen concentration associated with the phase of bacteremia patients. Clin Chim Acta 2020; 512:127-134. [PMID: 33159950 DOI: 10.1016/j.cca.2020.10.038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 10/20/2020] [Accepted: 10/30/2020] [Indexed: 11/17/2022]
Abstract
BACKGROUND Citrullinated fibrinogen (C-Fbg) has been detected in rheumatoid arthritis; however, few studies have reported the role of C-Fbg in other inflammatory diseases. This study aimed to clarify the changes in serum C-Fbg associated with the bacteremia phase. METHODS We measured serum C-Fbg concentration in bacteremia patients. C-Fbg levels at each phase of bacteremia, classified by white blood cell (WBC) count and neutrophil left shift change, were compared with those of healthy control (HC). The correlation between C-Fbg concentration and certain inflammatory markers, or citrullinated histone H3 concentration was assessed. Multiple linear regression (MLR) analysis was used to examine the association of log C-Fbg with certain inflammatory markers. RESULT Serum C-Fbg levels were significantly higher in bacteremia patients than in HC (p < 0.001) and positively correlated with WBC and neutrophil count. Further, C-Fbg levels were significantly higher in phases III and IV of bacteremia than in HC (p < 0.001). MLR analysis indicated that log C-Fbg had a stronger relationship with log neutrophil counts than other certain inflammatory markers (p < 0.01). CONCLUSION Serum C-Fbg levels increased in bacteremia patients, and this was consistent with an influx of neutrophils into the blood stream in accordance with the bacteremia phase.
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Affiliation(s)
- Satoshi Fujimura
- Department of Health and Medical Sciences, Graduate School of Medicine, Shinshu University, Matsumoto, Japan
| | - Yumiko Higuchi
- Department of Health and Medical Sciences, Graduate School of Medicine, Shinshu University, Matsumoto, Japan; Department of Biomedical Laboratory Sciences, Shinshu University School of Medicine, Matsumoto, Japan.
| | - Yoko Usami
- Department of Laboratory Medicine, Shinshu University Hospital, Matsumoto, Japan
| | - Makoto Yamaura
- Department of Health and Medical Sciences, Graduate School of Medicine, Shinshu University, Matsumoto, Japan; Department of Laboratory Medicine, Shinshu University Hospital, Matsumoto, Japan
| | - Tsukasa Higuchi
- Department of General Pediatrics, Nagano Children's Hospital, Azumino, Japan
| | - Fumiko Terasawa
- Faculty of Health and Medical Sciences, Department of Medical Technology and Clinical Engineering, Hokuriku University, Kanazawa, Japan
| | - Nobuo Okumura
- Department of Health and Medical Sciences, Graduate School of Medicine, Shinshu University, Matsumoto, Japan; Department of Biomedical Laboratory Sciences, Shinshu University School of Medicine, Matsumoto, Japan
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192
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Liu Q, Gao Y, Ou Q, Xu Y, Zhou Z, Li T, Lu Y, Sun F, Zhou X, Li Y, Shao L, Zhang W. Differential expression of CD64 in patients with Mycobacterium tuberculosis infection: A potential biomarker for clinical diagnosis and prognosis. J Cell Mol Med 2020; 24:13961-13972. [PMID: 33164320 PMCID: PMC7753880 DOI: 10.1111/jcmm.16004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 09/20/2020] [Accepted: 10/02/2020] [Indexed: 11/29/2022] Open
Abstract
To evaluate the clinical utility of neutrophil (n)CD64 index to diagnose pulmonary tuberculosis (PTB) and extrapulmonary TB (ePTB) and to predict the outcome of Mycobacterium tuberculosis infection. We recruited 189 patients with active TB and 140 controls and measured the differential expression of nCD64 index using flow cytometry. The receiver operating characteristics (ROC) curve analysis was performed to estimate the diagnostic performance of the nCD64 index and T‐SPOT.TB assay for the diagnosis of TB. Furthermore, we analysed whether the nCD64 index in patients with TB was correlated with inflammatory indicators. Finally, we assessed the prognosis of patients by following the dynamic changes of the nCD64 index once a week. The nCD64 index was significantly higher in active TB group (PTB and ePTB), than in the anti‐TB and healthy controls (HC) groups. The sensitivity and specificity of nCD64 index for the differential diagnosis of PTB and pneumonia (PN) patients were 68.33% and 77.55%, respectively. The sensitivity and specificity of nCD64 index for the diagnosis of tuberculous meningitis (TBM) were 53.85% and 100%, respectively. Furthermore, there was a weak correlation between the nCD64 index and inflammatory indicators. More importantly, with the improvement in patient condition, the nCD64 index started to decline in the first week of anti‐TB therapy and significantly decreased at 4 weeks after treatment. Our study demonstrated that the CD64 assay is a rapid, non‐invasive and stable method for clinical application, and the nCD64 index can serve as a potential biomarker for the diagnosis and prognosis of TB.
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Affiliation(s)
- Qianqian Liu
- Department of Infectious Diseases, Huashan Hospital, Fudan University, Shanghai, China
| | - Yan Gao
- Department of Infectious Diseases, Huashan Hospital, Fudan University, Shanghai, China
| | - Qinfang Ou
- Department of Pulmonary Diseases, Wuxi Infectious Diseases Hospital, Wuxi, China
| | - Yuzhen Xu
- Department of Infectious Diseases, Huashan Hospital, Fudan University, Shanghai, China
| | - Zhe Zhou
- Department of Infectious Diseases, Huashan Hospital, Fudan University, Shanghai, China
| | - Ting Li
- BD Medical Devices (Shanghai) Co., Ltd, Shanghai, China
| | - Yi Lu
- Shanghai Qianghan Medical Devices Co., Ltd, Shanghai, China
| | - Feng Sun
- Department of Infectious Diseases, Huashan Hospital, Fudan University, Shanghai, China
| | - Xian Zhou
- Department of Infectious Diseases, Huashan Hospital, Fudan University, Shanghai, China
| | - Yang Li
- Department of Infectious Diseases, Huashan Hospital, Fudan University, Shanghai, China
| | - Lingyun Shao
- Department of Infectious Diseases, Huashan Hospital, Fudan University, Shanghai, China
| | - Wenhong Zhang
- Department of Infectious Diseases, Huashan Hospital, Fudan University, Shanghai, China.,Key Laboratory of Medical Molecular Virology (MOE/MOH), Institutes of Biomedical Science, Shanghai Medical College, Fudan University, Shanghai, China.,State Key Laboratory of Genetic Engineering, School of Life Science, Fudan University, Shanghai, China.,National Clinical Research Center for Aging and Medicine, Huashan Hospital, Fudan University, Shanghai, China
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193
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Bedel C, Korkut M, Avcı A, Uzun A. Immature Granulocyte Count and Percentage as New Predictors of Mortality in Patients with Upper Gastrointestinal Bleeding. Indian J Crit Care Med 2020; 24:794-798. [PMID: 33132562 PMCID: PMC7584826 DOI: 10.5005/jp-journals-10071-23563] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Aims Early identification of patients at risk of adverse outcomes may increase the survival rates in patients with upper gastrointestinal bleeding (UGIB), but this can be difficult to predict in emergencies. The aim of the study is to evaluate immature granulocyte (IG), which can be obtained from simple hemogram tests in patients with UGIB, in terms of clinical use and as a mortality marker. Materials and methods The patients diagnosed with UGIB between March 1, 2019, and September 30, 2019, were evaluated retrospectively. Demographic characteristics, causes of hemorrhage, clinical presentations, hemogram, and biochemistry values at ED admission and 30-day mortality status of the patients were examined. We divided the patients into groups according to their mortality status, and the groups were compared among themselves in terms of parameters. Results A total of 213 patients who met the inclusion criteria were included in the study. Of these patients, 139 (65.3%) were male and the mean age was 65.05 ± 16.7 years. Fifteen (7%) of them were in the nonsurvival group, while 198 (93%) were in the survival group. The efficacy of both the IG count (IGC) and IG% in predicting mortality was statistically significant (p = 0.002, p = 0.008, respectively). The sensitivity and specificity for the IGC were found as 60% and 84.4; for the IG%, they were found as 66.7% and 75.7%, respectively. Conclusion IGC and IG% are independent risk factors for the 30-day mortality status. These measurements are obtained from simple hemogram tests and may be useful for the evaluation of mortality in patients with UGIB. How to cite this article Bedel C, Korkut M, Avcı A, Uzun A. Immature Granulocyte Count and Percentage as New Predictors of Mortality in Patients with Upper Gastrointestinal Bleeding. Indian J Crit Care Med 2020;24(9):794-798.
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Affiliation(s)
- Cihan Bedel
- Department of Emergency Medicine, Health Science University Antalya Training and Research Hospital, Antalya, Turkey
| | - Mustafa Korkut
- Department of Emergency Medicine, Health Science University Antalya Training and Research Hospital, Antalya, Turkey
| | - Ali Avcı
- Department of Emergency Medicine, Karaman State Hospital, Karaman, Turkey
| | - Ahmet Uzun
- Department of Emergency Medicine, Karabük University Training and Research Hospital, Karabük, Turkey
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194
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Gomes TL, Quiazon KM, Kotake M, Fujise Y, Ohizumi H, Itoh N, Yoshinaga T. Anisakis spp. in toothed and baleen whales from Japanese waters with notes on their potential role as biological tags. Parasitol Int 2020; 80:102228. [PMID: 33147496 DOI: 10.1016/j.parint.2020.102228] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Accepted: 10/05/2020] [Indexed: 10/23/2022]
Abstract
In this study, Anisakis nematodes isolated from toothed and baleen whales from localities around Japan were molecularly (PCR-RFLP) identified. In Wakayama, common bottlenose dolphins (Tursiops truncatus) were infected with A. simplex sensu stricto (s.s.), A. typica and A. pegreffii, while A. typica was the only species found in pantropical spotted dolphin (Stenella attenuata) and striped dolphin (S. coeruleoalba). Offshore common minke whales (Balaenoptera acutorostrata) and sei whales (B. borealis) were almost exclusively infected with A. simplex s.s.. However, in common minke whales from two Hokkaido localities, mature worms mostly consisted of A. simplex s.s. in some individuals and of A. pegreffii in others, but immature worms were mainly A. simplex s.s.. Gross and histopathological examination on gastric mucosa attached by anisakids resulted in mild and superficial reactions by the two baleen whale species in contrast to severe inflammatory reaction associated with ulcer formations by common bottlenose dolphin. Host specificity and adaptability of Anisakis spp. in these baleen and toothed whales were discussed from the points of view of adult worm size, worm population and pathological reactions by hosts. Interestingly, most of the common minke whales predominantly harboring mature A. pegreffii adults belonged to the Yellow Sea - East China Sea stock (J stock), which migrates through the Sea of Japan, whereas most of those mainly parasitized by mature A. simplex s.s. adults were from the Okhotsk Sea - West Pacific stock (O stock), mostly inhabiting the Pacific side, suggesting that these sibling species may have utility as biological tags to differentiate whale stocks. These results represent the first definitive host records for A. pegreffi in the Northwestern Pacific Ocean.
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Affiliation(s)
- Tiago Leandro Gomes
- Department of Aquatic Bioscience, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Karl Marx Quiazon
- Department of Aquatic Bioscience, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan; Freshwater Aquaculture Center and College of Fisheries, Central Luzon State University, Science City of Muñoz, Nueva Ecija 3120, Philippines
| | - Maho Kotake
- Department of Aquatic Bioscience, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Yoshihiro Fujise
- The Cetacean Research Institute, 4-5 Toyomi-cho, Chuo-ku, Tokyo 104-0055, Japan
| | - Hiroshi Ohizumi
- School of Marine Science and Technology, Tokai University, 3-20-1 Orido, Shimizu-ku, Shizuoka 424-8610, Japan
| | - Naoki Itoh
- Department of Aquatic Bioscience, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Tomoyoshi Yoshinaga
- Department of Aquatic Bioscience, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan.
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195
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Paul AM, Mhatre SD, Cekanaviciute E, Schreurs AS, Tahimic CGT, Globus RK, Anand S, Crucian BE, Bhattacharya S. Neutrophil-to-Lymphocyte Ratio: A Biomarker to Monitor the Immune Status of Astronauts. Front Immunol 2020; 11:564950. [PMID: 33224136 PMCID: PMC7667275 DOI: 10.3389/fimmu.2020.564950] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2020] [Accepted: 10/12/2020] [Indexed: 12/14/2022] Open
Abstract
A comprehensive understanding of spaceflight factors involved in immune dysfunction and the evaluation of biomarkers to assess in-flight astronaut health are essential goals for NASA. An elevated neutrophil-to-lymphocyte ratio (NLR) is a potential biomarker candidate, as leukocyte differentials are altered during spaceflight. In the reduced gravity environment of space, rodents and astronauts displayed elevated NLR and granulocyte-to-lymphocyte ratios (GLR), respectively. To simulate microgravity using two well-established ground-based models, we cultured human whole blood-leukocytes in high-aspect rotating wall vessels (HARV-RWV) and used hindlimb unloaded (HU) mice. Both HARV-RWV simulation of leukocytes and HU-exposed mice showed elevated NLR profiles comparable to spaceflight exposed samples. To assess mechanisms involved, we found the simulated microgravity HARV-RWV model resulted in an imbalance of redox processes and activation of myeloperoxidase-producing inflammatory neutrophils, while antioxidant treatment reversed these effects. In the simulated microgravity HU model, mitochondrial catalase-transgenic mice that have reduced oxidative stress responses showed reduced neutrophil counts, NLR, and a dampened release of selective inflammatory cytokines compared to wildtype HU mice, suggesting simulated microgravity induced oxidative stress responses that triggered inflammation. In brief, both spaceflight and simulated microgravity models caused elevated NLR, indicating this as a potential biomarker for future in-flight immune health monitoring.
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Affiliation(s)
- Amber M Paul
- Space Biosciences Division, NASA Ames Research Center, Moffett Field, CA, United States.,Universities Space Research Association, Columbia, MD, United States
| | - Siddhita D Mhatre
- Space Biosciences Division, NASA Ames Research Center, Moffett Field, CA, United States.,COSMIAC Research Center, University of New Mexico, Albuquerque, NM, United States.,KBR, Houston, TX, United States
| | - Egle Cekanaviciute
- Space Biosciences Division, NASA Ames Research Center, Moffett Field, CA, United States
| | - Ann-Sofie Schreurs
- Space Biosciences Division, NASA Ames Research Center, Moffett Field, CA, United States
| | - Candice G T Tahimic
- Space Biosciences Division, NASA Ames Research Center, Moffett Field, CA, United States.,COSMIAC Research Center, University of New Mexico, Albuquerque, NM, United States.,Department of Biology, University of North Florida, Jacksonville, FL, United States
| | - Ruth K Globus
- Space Biosciences Division, NASA Ames Research Center, Moffett Field, CA, United States
| | - Sulekha Anand
- Department of Biological Sciences, San Jose State University, San Jose, CA, United States
| | - Brian E Crucian
- Biomedical Research and Environmental Sciences Division, NASA Johnson Science Center, Houston, TX, United States
| | - Sharmila Bhattacharya
- Space Biosciences Division, NASA Ames Research Center, Moffett Field, CA, United States
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196
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Polymorphonuclear neutrophil leukocytes in snakebite envenoming. Toxicon 2020; 187:188-197. [DOI: 10.1016/j.toxicon.2020.09.006] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Revised: 09/12/2020] [Accepted: 09/14/2020] [Indexed: 12/23/2022]
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197
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Carissimo G, Xu W, Kwok I, Abdad MY, Chan YH, Fong SW, Puan KJ, Lee CYP, Yeo NKW, Amrun SN, Chee RSL, How W, Chan S, Fan BE, Andiappan AK, Lee B, Rötzschke O, Young BE, Leo YS, Lye DC, Renia L, Ng LG, Larbi A, Ng LF. Whole blood immunophenotyping uncovers immature neutrophil-to-VD2 T-cell ratio as an early marker for severe COVID-19. Nat Commun 2020; 11:5243. [PMID: 33067472 PMCID: PMC7568554 DOI: 10.1038/s41467-020-19080-6] [Citation(s) in RCA: 120] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Accepted: 09/22/2020] [Indexed: 01/08/2023] Open
Abstract
SARS-CoV-2 is the novel coronavirus responsible for the current COVID-19 pandemic. Severe complications are observed only in a small proportion of infected patients but the cellular mechanisms underlying this progression are still unknown. Comprehensive flow cytometry of whole blood samples from 54 COVID-19 patients reveals a dramatic increase in the number of immature neutrophils. This increase strongly correlates with disease severity and is associated with elevated IL-6 and IP-10 levels, two key players in the cytokine storm. The most pronounced decrease in cell counts is observed for CD8 T-cells and VD2 γδ T-cells, which both exhibit increased differentiation and activation. ROC analysis reveals that the count ratio of immature neutrophils to VD2 (or CD8) T-cells predicts pneumonia onset (0.9071) as well as hypoxia onset (0.8908) with high sensitivity and specificity. It would thus be a useful prognostic marker for preventive patient management and improved healthcare resource management.
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Affiliation(s)
- Guillaume Carissimo
- Infectious Disease Horizontal Technology Center, Agency for Science, Technology and Research, Immunos, Biopolis, 138648, Singapore.
- Singapore Immunology Network, Agency for Science, Technology and Research, Immunos, Biopolis, 138648, Singapore.
| | - Weili Xu
- Singapore Immunology Network, Agency for Science, Technology and Research, Immunos, Biopolis, 138648, Singapore
| | - Immanuel Kwok
- Singapore Immunology Network, Agency for Science, Technology and Research, Immunos, Biopolis, 138648, Singapore
| | - Mohammad Yazid Abdad
- National Centre for Infectious Diseases, 16 Jalan Tan Tock Seng, 308442, Singapore, Singapore
| | - Yi-Hao Chan
- Infectious Disease Horizontal Technology Center, Agency for Science, Technology and Research, Immunos, Biopolis, 138648, Singapore
- Singapore Immunology Network, Agency for Science, Technology and Research, Immunos, Biopolis, 138648, Singapore
| | - Siew-Wai Fong
- Infectious Disease Horizontal Technology Center, Agency for Science, Technology and Research, Immunos, Biopolis, 138648, Singapore
- Singapore Immunology Network, Agency for Science, Technology and Research, Immunos, Biopolis, 138648, Singapore
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore, 117543
| | - Kia Joo Puan
- Singapore Immunology Network, Agency for Science, Technology and Research, Immunos, Biopolis, 138648, Singapore
| | - Cheryl Yi-Pin Lee
- Infectious Disease Horizontal Technology Center, Agency for Science, Technology and Research, Immunos, Biopolis, 138648, Singapore
- Singapore Immunology Network, Agency for Science, Technology and Research, Immunos, Biopolis, 138648, Singapore
| | - Nicholas Kim-Wah Yeo
- Infectious Disease Horizontal Technology Center, Agency for Science, Technology and Research, Immunos, Biopolis, 138648, Singapore
- Singapore Immunology Network, Agency for Science, Technology and Research, Immunos, Biopolis, 138648, Singapore
| | - Siti Naqiah Amrun
- Infectious Disease Horizontal Technology Center, Agency for Science, Technology and Research, Immunos, Biopolis, 138648, Singapore
- Singapore Immunology Network, Agency for Science, Technology and Research, Immunos, Biopolis, 138648, Singapore
| | - Rhonda Sin-Ling Chee
- Infectious Disease Horizontal Technology Center, Agency for Science, Technology and Research, Immunos, Biopolis, 138648, Singapore
- Singapore Immunology Network, Agency for Science, Technology and Research, Immunos, Biopolis, 138648, Singapore
| | - Wilson How
- Singapore Immunology Network, Agency for Science, Technology and Research, Immunos, Biopolis, 138648, Singapore
| | - Stephrene Chan
- Department of Haematology, Tan Tock Seng Hospital, 11 Jalan Tan Tock Seng, 308433, Singapore, Singapore
- Department of Laboratory Medicine, Khoo Teck Puat Hospital, Singapore, Singapore
- Lee Kong Chian School of Medicine, Singapore, Singapore
- Yong Loo Lin School of Medicine, Singapore, Singapore
| | - Bingwen Eugene Fan
- Department of Haematology, Tan Tock Seng Hospital, 11 Jalan Tan Tock Seng, 308433, Singapore, Singapore
- Department of Laboratory Medicine, Khoo Teck Puat Hospital, Singapore, Singapore
- Lee Kong Chian School of Medicine, Singapore, Singapore
- Yong Loo Lin School of Medicine, Singapore, Singapore
| | - Anand Kumar Andiappan
- Singapore Immunology Network, Agency for Science, Technology and Research, Immunos, Biopolis, 138648, Singapore
| | - Bernett Lee
- Singapore Immunology Network, Agency for Science, Technology and Research, Immunos, Biopolis, 138648, Singapore
| | - Olaf Rötzschke
- Singapore Immunology Network, Agency for Science, Technology and Research, Immunos, Biopolis, 138648, Singapore
| | - Barnaby Edward Young
- National Centre for Infectious Diseases, 16 Jalan Tan Tock Seng, 308442, Singapore, Singapore
- Department of Infectious Diseases, Tan Tock Seng Hospital, 11 Jalan Tan Tock Seng, 308433, Singapore, Singapore
- Lee Kong Chian School of Medicine, Nanyang Technological University, 11 Mandalay Road, 308232, Singapore, Singapore
| | - Yee-Sin Leo
- National Centre for Infectious Diseases, 16 Jalan Tan Tock Seng, 308442, Singapore, Singapore
- Department of Infectious Diseases, Tan Tock Seng Hospital, 11 Jalan Tan Tock Seng, 308433, Singapore, Singapore
- Lee Kong Chian School of Medicine, Nanyang Technological University, 11 Mandalay Road, 308232, Singapore, Singapore
- Yong Loo Lin School of Medicine, National University of Singapore and National University Health System, 10 Medical Drive, 117597, Singapore, Singapore
- Saw Swee Hock School of Public Health, National University Singapore, 12 Science Drive 2, 117549, Singapore, Singapore
| | - David Chien Lye
- National Centre for Infectious Diseases, 16 Jalan Tan Tock Seng, 308442, Singapore, Singapore
- Department of Infectious Diseases, Tan Tock Seng Hospital, 11 Jalan Tan Tock Seng, 308433, Singapore, Singapore
- Lee Kong Chian School of Medicine, Nanyang Technological University, 11 Mandalay Road, 308232, Singapore, Singapore
- Yong Loo Lin School of Medicine, National University of Singapore and National University Health System, 10 Medical Drive, 117597, Singapore, Singapore
| | - Laurent Renia
- Infectious Disease Horizontal Technology Center, Agency for Science, Technology and Research, Immunos, Biopolis, 138648, Singapore
- Singapore Immunology Network, Agency for Science, Technology and Research, Immunos, Biopolis, 138648, Singapore
| | - Lai Guan Ng
- Singapore Immunology Network, Agency for Science, Technology and Research, Immunos, Biopolis, 138648, Singapore
| | - Anis Larbi
- Singapore Immunology Network, Agency for Science, Technology and Research, Immunos, Biopolis, 138648, Singapore
| | - Lisa Fp Ng
- Infectious Disease Horizontal Technology Center, Agency for Science, Technology and Research, Immunos, Biopolis, 138648, Singapore.
- Singapore Immunology Network, Agency for Science, Technology and Research, Immunos, Biopolis, 138648, Singapore.
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, 8 Medical Drive, 117596, Singapore, Singapore.
- Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, 8 West Derby Street, Liverpool, L7 3EA, UK.
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198
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Varatnitskaya M, Degrossoli A, Leichert LI. Redox regulation in host-pathogen interactions: thiol switches and beyond. Biol Chem 2020; 402:299-316. [PMID: 33021957 DOI: 10.1515/hsz-2020-0264] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Accepted: 09/29/2020] [Indexed: 12/23/2022]
Abstract
Our organism is exposed to pathogens on a daily basis. Owing to this age-old interaction, both pathogen and host evolved strategies to cope with these encounters. Here, we focus on the consequences of the direct encounter of cells of the innate immune system with bacteria. First, we will discuss the bacterial strategies to counteract powerful reactive species. Our emphasis lies on the effects of hypochlorous acid (HOCl), arguably the most powerful oxidant produced inside the phagolysosome of professional phagocytes. We will highlight individual examples of proteins in gram-negative bacteria activated by HOCl via thiol-disulfide switches, methionine sulfoxidation, and N-chlorination of basic amino acid side chains. Second, we will discuss the effects of HOCl on proteins of the host. Recent studies have shown that both host and bacteria address failing protein homeostasis by activation of chaperone-like holdases through N-chlorination. After discussing the role of individual proteins in the HOCl-defense, we will turn our attention to the examination of effects on host and pathogen on a systemic level. Recent studies using genetically encoded redox probes and redox proteomics highlight differences in redox homeostasis in host and pathogen and give first hints at potential cellular HOCl signaling beyond thiol-disulfide switch mechanisms.
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Affiliation(s)
- Marharyta Varatnitskaya
- Institute for Biochemistry and Pathobiochemistry - Microbial Biochemistry, Ruhr University Bochum, Bochum, Germany
| | - Adriana Degrossoli
- Faculty of Health Science - Health Science Department, Federal University of Lavras, Lavras, Brazil
| | - Lars I Leichert
- Institute for Biochemistry and Pathobiochemistry - Microbial Biochemistry, Ruhr University Bochum, Bochum, Germany
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199
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Zhao J, Chen Y, Dong L, Li X, Dong R, Zhou D, Wang C, Guo X, Zhang J, Xue Z, Xi Q, Zhang L, Yang G, Li Y, Zhang R. Arctigenin protects mice from thioglycollate-induced acute peritonitis. Pharmacol Res Perspect 2020; 8:e00660. [PMID: 32960513 PMCID: PMC7507838 DOI: 10.1002/prp2.660] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 08/27/2020] [Accepted: 08/27/2020] [Indexed: 11/13/2022] Open
Abstract
Acute peritonitis is an acute inflammatory response of the peritoneal cavity to physical injury and chemical stimulation. Timely resolution of this response is critical to prevent further damage to the body, which can eventually lead to more severe chronic inflammation. Arctigenin (ATG) is the main active ingredient of the Chinese medicine Arctium lappa. In recent years, there have been an increasing number of studies on the anti-inflammatory effect of ATG, but there have been few studies on the effect of ATG on acute inflammation, especially in acute peritonitis, which has not been reported. In this study, a mouse model of experimental acute peritonitis induced by thioglycolate (TG) solution was used to study the protective anti-inflammatory effect of ATG against acute peritonitis and the relevant mechanism. Our results showed that, after 12 hours of TG treatment, ATG significantly reduced inflammatory cell infiltration in mouse tissues and inhibited the secretion and expression of interleukin-6 (IL-6) and tumor necrosis factor alpha (TNF-α) in mice. ATG significantly reduced the percentage of CD11b+ Ly6G+ neutrophils and F4/80+ macrophages in the spleen and peritoneal exudate. In addition, ATG significantly inhibited the expression of the chemokines CCL3 and CCL4 and the adhesion molecule CD62L on the surface of CD11b-positive monocytes. ATG was observed to inhibit the phosphorylation of p65 and p38 in LPS-stimulated RAW264.7 cells. In conclusion, ATG can improve the symptoms of TG-induced acute peritonitis through immune regulation. ATG can reduce the inflammatory response in TG-induced acute peritonitis in mice.
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Affiliation(s)
- Jingyi Zhao
- Guangdong Province Key Laboratory for Biotechnology Drug CandidatesInstitute of Basic Medical Sciences and Department of BiotechnologySchool of Life Sciences and BiopharmaceuticsGuangdong Pharmaceutical UniversityGuangzhouChina
| | - Ying Chen
- Guangdong Province Key Laboratory for Biotechnology Drug CandidatesInstitute of Basic Medical Sciences and Department of BiotechnologySchool of Life Sciences and BiopharmaceuticsGuangdong Pharmaceutical UniversityGuangzhouChina
| | - Lijun Dong
- Guangdong Province Key Laboratory for Biotechnology Drug CandidatesInstitute of Basic Medical Sciences and Department of BiotechnologySchool of Life Sciences and BiopharmaceuticsGuangdong Pharmaceutical UniversityGuangzhouChina
| | - Xin Li
- Guangdong Province Key Laboratory for Biotechnology Drug CandidatesInstitute of Basic Medical Sciences and Department of BiotechnologySchool of Life Sciences and BiopharmaceuticsGuangdong Pharmaceutical UniversityGuangzhouChina
| | - Ruijie Dong
- Department of ImmunologyKey Laboratory of Immune Microenvironment and Diseases of Educational Ministry of ChinaTianjin Medical UniversityTianjinChina
| | - Dongmei Zhou
- Department of ImmunologyKey Laboratory of Immune Microenvironment and Diseases of Educational Ministry of ChinaTianjin Medical UniversityTianjinChina
| | - Chengzhi Wang
- Department of ImmunologyKey Laboratory of Immune Microenvironment and Diseases of Educational Ministry of ChinaTianjin Medical UniversityTianjinChina
| | - Xiangdong Guo
- Department of ImmunologyKey Laboratory of Immune Microenvironment and Diseases of Educational Ministry of ChinaTianjin Medical UniversityTianjinChina
| | - Jieyou Zhang
- Department of ImmunologyKey Laboratory of Immune Microenvironment and Diseases of Educational Ministry of ChinaTianjin Medical UniversityTianjinChina
| | - Zhenyi Xue
- Department of ImmunologyKey Laboratory of Immune Microenvironment and Diseases of Educational Ministry of ChinaTianjin Medical UniversityTianjinChina
| | - Qing Xi
- Department of ImmunologyKey Laboratory of Immune Microenvironment and Diseases of Educational Ministry of ChinaTianjin Medical UniversityTianjinChina
| | - Lijuan Zhang
- Department of ImmunologyKey Laboratory of Immune Microenvironment and Diseases of Educational Ministry of ChinaTianjin Medical UniversityTianjinChina
| | - Guangze Yang
- Department of ImmunologyKey Laboratory of Immune Microenvironment and Diseases of Educational Ministry of ChinaTianjin Medical UniversityTianjinChina
| | - Yan Li
- Guangdong Province Key Laboratory for Biotechnology Drug CandidatesInstitute of Basic Medical Sciences and Department of BiotechnologySchool of Life Sciences and BiopharmaceuticsGuangdong Pharmaceutical UniversityGuangzhouChina
| | - Rongxin Zhang
- Guangdong Province Key Laboratory for Biotechnology Drug CandidatesInstitute of Basic Medical Sciences and Department of BiotechnologySchool of Life Sciences and BiopharmaceuticsGuangdong Pharmaceutical UniversityGuangzhouChina
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Dehghani T, Panitch A. Endothelial cells, neutrophils and platelets: getting to the bottom of an inflammatory triangle. Open Biol 2020; 10:200161. [PMID: 33050789 PMCID: PMC7653352 DOI: 10.1098/rsob.200161] [Citation(s) in RCA: 22] [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: 06/08/2020] [Accepted: 09/22/2020] [Indexed: 02/06/2023] Open
Abstract
Severe fibrotic and thrombotic events permeate the healthcare system, causing suffering for millions of patients with inflammatory disorders. As late-state consequences of chronic inflammation, fibrosis and thrombosis are the culmination of pathological interactions of activated endothelium, neutrophils and platelets after vessel injury. Coupling of these three cell types ensures a pro-coagulant, cytokine-rich environment that promotes the capture, activation and proliferation of circulating immune cells and recruitment of key pro-fibrotic cell types such as myofibroblasts. As the first responders to sterile inflammatory injury, it is important to understand how endothelial cells, neutrophils and platelets help create this environment. There has been a growing interest in this intersection over the past decade that has helped shape the development of therapeutics to target these processes. Here, we review recent insights into how neutrophils, platelets and endothelial cells guide the development of pathological vessel repair that can also result in underlying tissue fibrosis. We further discuss recent efforts that have been made to translate this knowledge into therapeutics and provide perspective as to how a compound or combination therapeutics may be most efficacious when tackling fibrosis and thrombosis that is brought upon by chronic inflammation.
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Affiliation(s)
| | - Alyssa Panitch
- Department of Biomedical Engineering, University of California, Davis, 451 Health Sciences Drive, GBSF 2303, Davis, CA, USA
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