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Yada N, Zhang Q, Bignotti A, Gralnek SH, Sosnovske D, Hogan K, Ye Z, Zheng L, Zheng XL. Targeting neutrophil extracellular trap accumulation under flow in patients with immune-mediated thrombotic thrombocytopenic purpura. Blood Adv 2024; 8:2536-2551. [PMID: 38513079 PMCID: PMC11131081 DOI: 10.1182/bloodadvances.2023011617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 02/12/2024] [Accepted: 02/12/2024] [Indexed: 03/23/2024] Open
Abstract
ABSTRACT Neutrophil NETosis is a unique form of cell death, characterized by the release of decondensed chromatin and antimicrobial contents to the extracellular space, which is involved in inflammation and thrombosis. However, the role of NETosis in the pathogenesis of immune-mediated thrombotic thrombocytopenic purpura (iTTP) and how a targeted therapy affects the accumulation of neutrophil extracellular traps (NETs) under flow remain unknown. Flow cytometry demonstrated that the percentage of neutrophils undergoing NETosis in whole blood from patients with iTTP on admission was significantly increased, with a concurrent decrease in the capacity of inducible NETosis by shigatoxin. After therapy, the percentage of H3Cit+MPO+ neutrophils was significantly reduced, with an improvement in inducible NETosis in these patients. Additionally, little to no NET and thrombus formation was detected underflow in the whole blood from patients with iTTP when platelet counts were very low, but the NET and thrombus formation was dramatically increased following therapy when platelet counts rose to ≥50 × 109/L or were restored to normal with donor platelets. Similarly, there was no thrombus or NET accumulation under flow in the whole blood from vwf-/- mice, but NET accumulation was significantly higher in Adamts13-/- mice than in wild-type mice. Finally, recombinant ADAMTS13 or caplacizumab (or anfibatide) prevented NET and thrombus formation under flow in whole blood from patients with iTTP or from Adamts13-/- mice. These results indicate that neutrophil NETosis and NET formation depend on platelets and von Willebrand factor (VWF) in iTTP, and a targeted therapy such as recombinant ADAMTS13 or caplacizumab may prevent NET and thrombus formation under flow in iTTP.
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Affiliation(s)
- Noritaka Yada
- Department of Pathology and Laboratory Medicine, The University of Kansas Medical Center, Kansas City, KS
| | - Quan Zhang
- Department of Pathology and Laboratory Medicine, The University of Kansas Medical Center, Kansas City, KS
| | - Antonia Bignotti
- Department of Pathology and Laboratory Medicine, The University of Kansas Medical Center, Kansas City, KS
| | - Sarah H. Gralnek
- Department of Pathology and Laboratory Medicine, The University of Kansas Medical Center, Kansas City, KS
| | - Dennis Sosnovske
- Department of Pathology and Laboratory Medicine, The University of Kansas Medical Center, Kansas City, KS
| | - Keenan Hogan
- Department of Pathology and Laboratory Medicine, The University of Kansas Medical Center, Kansas City, KS
| | - Zhan Ye
- Department of Pathology and Laboratory Medicine, The University of Kansas Medical Center, Kansas City, KS
| | - Liang Zheng
- Department of Pathology and Laboratory Medicine, The University of Kansas Medical Center, Kansas City, KS
- Institute of Reproductive Medicine and Developmental Sciences, The University of Kansas Medical Center, Kansas City, KS
| | - X. Long Zheng
- Department of Pathology and Laboratory Medicine, The University of Kansas Medical Center, Kansas City, KS
- Institute of Reproductive Medicine and Developmental Sciences, The University of Kansas Medical Center, Kansas City, KS
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Schmidt H, Höpfer LM, Wohlgemuth L, Knapp CL, Mohamed AOK, Stukan L, Münnich F, Hüsken D, Koller AS, Stratmann AEP, Müller P, Braun CK, Fabricius D, Bode SFN, Huber-Lang M, Messerer DAC. Multimodal analysis of granulocytes, monocytes, and platelets in patients with cystic fibrosis before and after Elexacaftor-Tezacaftor-Ivacaftor treatment. Front Immunol 2023; 14:1180282. [PMID: 37457734 PMCID: PMC10347380 DOI: 10.3389/fimmu.2023.1180282] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Accepted: 05/15/2023] [Indexed: 07/18/2023] Open
Abstract
Cystic fibrosis (CF) is a monogenetic disease caused by an impairment of the cystic fibrosis transmembrane conductance regulator (CFTR). CF affects multiple organs and is associated with acute and chronic inflammation. In 2020, Elexacaftor-Tezacaftor-Ivacaftor (ETI) was approved to enhance and restore the remaining CFTR functionality. This study investigates cellular innate immunity, with a focus on neutrophil activation and phenotype, comparing healthy volunteers with patients with CF before (T1, n = 13) and after six months (T2, n = 11) of ETI treatment. ETI treatment reduced sweat chloride (T1: 95 mmol/l (83|108) vs. T2: 32 mmol/l (25|62), p < 0.01, median, first|third quartile) and significantly improved pulmonal function (FEV1 T1: 2.66 l (1.92|3.04) vs. T2: 3.69 l (3.00|4.03), p < 0.01). Moreover, there was a significant decrease in the biomarker human epididymis protein 4 (T1: 6.2 ng/ml (4.6|6.3) vs. T2: 3.0 ng/ml (2.2|3.7), p < 0.01) and a small but significant decrease in matrix metallopeptidase 9 (T1: 45.5 ng/ml (32.5|140.1) vs. T2: 28.2 ng/ml (18.2|33.6), p < 0.05). Neutrophil phenotype (CD10, CD11b, CD62L, and CD66b) and function (radical oxygen species generation, chemotactic and phagocytic activity) remained largely unaffected by ETI treatment. Likewise, monocyte phenotype and markers of platelet activation were similar at T1 and T2. In summary, the present study confirmed a positive impact on patients with CF after ETI treatment. However, neither beneficial nor harmful effects of ETI treatment on cellular innate immunity could be detected, possibly due to the study population consisting of patients with well-controlled CF.
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Affiliation(s)
- Hanna Schmidt
- Department of Pediatric and Adolescent Medicine, University Hospital Ulm, Ulm, Germany
| | - Larissa Melina Höpfer
- Institute of Clinical and Experimental Trauma Immunology, University Hospital Ulm, Ulm, Germany
| | - Lisa Wohlgemuth
- Institute of Clinical and Experimental Trauma Immunology, University Hospital Ulm, Ulm, Germany
| | - Christiane Leonie Knapp
- Institute of Clinical and Experimental Trauma Immunology, University Hospital Ulm, Ulm, Germany
| | | | - Laura Stukan
- Institute of Clinical and Experimental Trauma Immunology, University Hospital Ulm, Ulm, Germany
| | - Frederik Münnich
- Institute of Clinical and Experimental Trauma Immunology, University Hospital Ulm, Ulm, Germany
| | - Dominik Hüsken
- Institute of Clinical and Experimental Trauma Immunology, University Hospital Ulm, Ulm, Germany
| | | | | | - Paul Müller
- Institute of Clinical and Experimental Trauma Immunology, University Hospital Ulm, Ulm, Germany
| | - Christian Karl Braun
- Department of Pediatric and Adolescent Medicine, University Hospital Ulm, Ulm, Germany
- Institute of Transfusion Medicine, Ulm University, Ulm, Germany
- Institute of Clinical Transfusion Medicine and Immunogenetics Ulm, German Red Cross Blood Transfusion Service and University Hospital Ulm, Ulm, Germany
| | - Dorit Fabricius
- Department of Pediatric and Adolescent Medicine, University Hospital Ulm, Ulm, Germany
| | | | - Markus Huber-Lang
- Institute of Clinical and Experimental Trauma Immunology, University Hospital Ulm, Ulm, Germany
| | - David Alexander Christian Messerer
- Institute of Clinical and Experimental Trauma Immunology, University Hospital Ulm, Ulm, Germany
- Department of Transfusion Medicine and Hemostaseology, Friedrich-Alexander University Erlangen-Nuremberg, University Hospital Erlangen, Erlangen, Germany
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Richards GA, Theron AJ, van den Bout I, Anderson R, Feldman C, van Zyl Smit R, Chang JW, Tintinger GR. Comparison of the effects of electronic cigarette vapours and tobacco smoke extracts on human neutrophils in vitro. ERJ Open Res 2023; 9:00502-2022. [PMID: 37228295 PMCID: PMC10204819 DOI: 10.1183/23120541.00502-2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Accepted: 03/17/2023] [Indexed: 05/27/2023] Open
Abstract
Background Electronic cigarettes (ECs) are electronic aerosol delivery systems composed of nicotine and various chemicals, which are widely used to facilitate smoking cessation. Although ECs are considered safer than cigarettes, they do, however, contain chemical toxicants, some of which may interact with cells of the host's innate immune system of which neutrophils constitute a key component. Methods The current study was designed to compare the effects of aqueous EC aerosol extracts (ECEs; with or without nicotine) with those of cigarette smoke extract (CSE) on neutrophil and platelet reactivity in vitro. Neutrophil reactivity is characterised by the generation of reactive oxygen species (ROS), degranulation (elastase release) and the release of extracellular DNA (neutrophil extracellular trap (NET) formation: NETosis), which were measured using chemiluminescence, spectrophotometric and microscopic procedures, respectively. Platelet reactivity was measured according to the magnitude of upregulated expression of the adhesion molecule CD62P on activated cells using a flow cytometric procedure. Results Exposure of neutrophils to either ECEs or CSE caused a significant inhibition of ROS generation and elastase release by N-formyl-l-methionyl-l-leucyl-l-phenylalanine (1 µM)-activated neutrophils. Pre-treatment of neutrophils with CSE also resulted in a marked attenuation of phorbol 12-myristate 13-acetate (6.25 nM)-mediated release of extracellular DNA, which was unaffected by the ECEs. Similarly, CSE, but not the ECEs, inhibited the expression of CD62P by platelets activated with ADP (100 µM). Conclusions These observations suggest that ECE aerosols may inhibit some of the immuno-protective activities of neutrophils such as ROS production and elastase release by activated cells, the effect of which was not enhanced by inclusion of nicotine. The inhibitory effects of CSE were significantly more pronounced than those of ECEs, especially so for suppression of NET formation and platelet activation. If operative in vivo, these harmful immunosuppressive effects of ECEs may compromise intrinsic pulmonary antimicrobial defence mechanisms, albeit less so than cigarette smoke.
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Affiliation(s)
- Guy A. Richards
- Division of Critical Care, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Annette J. Theron
- Department of Immunology, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
| | - Iman van den Bout
- Centre of Neuroendocrinology, Department of Immunology, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
| | - Ronald Anderson
- Department of Immunology, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
| | - Charles Feldman
- Department of Internal Medicine, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Richard van Zyl Smit
- Department of Medicine, University of Cape Town, Groote Schuur Hospital, Cape Town, South Africa
| | - Ju-Wei Chang
- Department of Medicine, University of Cape Town, Groote Schuur Hospital, Cape Town, South Africa
| | - Gregory R. Tintinger
- Department of Internal Medicine, Steve Biko Academic Hospital and Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
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Yu M, Xiao G, Han L, Peng L, Wang H, He S, Lyu M, Zhu Y. QiShen YiQi and its components attenuate acute thromboembolic stroke and carotid thrombosis by inhibition of CD62P/PSGL-1-mediated platelet-leukocyte aggregate formation. Biomed Pharmacother 2023; 160:114323. [PMID: 36738500 DOI: 10.1016/j.biopha.2023.114323] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 01/20/2023] [Accepted: 01/26/2023] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND QiShen YiQi (QSYQ) dropping pill, a component-based Chinese medicine consisting of benefiting Qi (YQ) and activating blood (HX) components, has been reported to exert a beneficial effect on cerebral ischemia-induced stroke. However, its efficacy and pharmacological mechanism on acute thromboembolic stroke is not clear. PURPOSE This study is to explore the preventative effect and pharmacological mechanism of QSYQ and its YQ/HX components on the formation of platelet-leukocyte aggregation (PLA) in acute thromboembolic stroke. STUDY DESIGN AND METHODS In vivo thromboembolic stroke model and FeCl3-induced carotid arterial occlusion models were used. Immunohistochemistry, Western blot, RT-qPCR, and flow cytometry experiments were performed to reveal the pharmacological mechanisms of QSYQ and its YQ/HX components. RESULTS In thromboembolic stroke rats, QSYQ significantly attenuated infarct area, improved neurological recovery, reduced PLA formation, and inhibited P-selection (CD62P)/ P-selectin glycoprotein ligand-1 (PSGL-1) expressions. The YQ component preferentially down-regulated PSGL-1 expression in leukocyte, while the HX component preferentially down-regulated CD62P expression in platelet. In carotid arterial thrombosis mice, QSYQ and its YQ/HX components inhibited thrombus formation, prolonged vessel occlusion time, reduced circulating leukocytes and P-selectin expression. PLA formation and platelet/leukocyte adhesion to endothelial cell were also inhibited by QSYQ and its YQ/HX components in vitro. CONCLUSION QSYQ and YQ/HX components attenuated thromboembolic stroke and carotid thrombosis by decreasing PLA formation via inhibiting CD62P/PSGL-1 expressions. This study shed a new light on the prevention of thromboembolic stroke.
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Affiliation(s)
- Mingxing Yu
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Beihua South Road, JingHai District, Tianjin 301617, China
| | - Guangxu Xiao
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Beihua South Road, JingHai District, Tianjin 301617, China
| | - Linhong Han
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Beihua South Road, JingHai District, Tianjin 301617, China
| | - Li Peng
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Beihua South Road, JingHai District, Tianjin 301617, China
| | - Huanyi Wang
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Beihua South Road, JingHai District, Tianjin 301617, China
| | - Shuang He
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Beihua South Road, JingHai District, Tianjin 301617, China
| | - Ming Lyu
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Beihua South Road, JingHai District, Tianjin 301617, China.
| | - Yan Zhu
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Beihua South Road, JingHai District, Tianjin 301617, China.
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Hypercoagulability and Inflammatory Markers in a Case of Congenital Thrombotic Thrombocytopenic Purpura Complicated by Fetal Demise. J Clin Med 2022; 11:jcm11237115. [PMID: 36498688 PMCID: PMC9737388 DOI: 10.3390/jcm11237115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 11/29/2022] [Accepted: 11/29/2022] [Indexed: 12/02/2022] Open
Abstract
BACKGROUND Congenital thrombotic thrombocytopenic purpura (cTTP) is a rare disorder caused by an inherited genetic deficiency of ADAMTS13 and affects less than one per million individuals. Patients who are diagnosed with TTP during pregnancy are at increased risk of maternal and fetal complications including fetal demise. We present a case of a 32-year-old G3P0 (gravida 3, para 0) who presented at 20 weeks gestation with a new diagnosis of congenital TTP (cTTP) and fetal demise. METHODS We describe the pathophysiology of pregnancy complications in a patient with cTTP using platelet procoagulant membrane dynamics analysis and quantitative proteomic studies, compared to four pregnant patients with gestational hypertension, four pregnant patients with preeclampsia, and four healthy pregnant controls. RESULTS The cTTP patient had increased P-selectin, tissue factor expression, annexin-V binding on platelets and neutrophils, and localized thrombin generation, suggestive of hypercoagulability. Among 15 proteins that were upregulated, S100A8 and S100A9 were distinctly overexpressed. CONCLUSIONS There is platelet-neutrophil activation and interaction, platelet hypercoagulability, and proinflammation in our case of cTTP with fetal demise.
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6
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Li X, Gao Y, Liu J, Xujian Q, Luo Q, Huang Z, Li J. Validation of Serotransferrin in the Serum as Candidate Biomarkers for the Diagnosis of Pulmonary Tuberculosis by Label-Free LC/MS. ACS OMEGA 2022; 7:24174-24183. [PMID: 35874208 PMCID: PMC9301696 DOI: 10.1021/acsomega.2c00837] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
This study aimed to identify secreted protein biomarkers in serum from the label-free LC/MS proteomics of neutrophils in pulmonary tuberculosis (TB) patients for the diagnosis biomarkers of TB label-free LC/MS. The proteomic profiles of neutrophils from 15 active TB patients and 15 healthy controls (HCs) were analyzed using label-free LC/MS. We identified 358 differentially expressed proteins preliminarily, including 279 up-regulated proteins and 79 down-regulated proteins. Thirty-eight differentially expressed secreted proteins involved in the progress of platelet degranulation between TB patients and HCs were focused. Of these, serotransferrin (TRF), alpha-2-macroglobulin (AMG), alpha-1-antitrypsin (AAT), alpha-1-acid glycoprotein 1 (AAG), alpha-1-acid glycoprotein 2 (AGP2), and alpha-1B-glycoprotein (A1BG) were selected for further verification in the serum of additional 134 TB patients and 138 HCs by nephelometry and ELISA in the training set. Statistically significant differences of TRF (P < 0.0001), AAT (P < 0.0001), AAG (P < 0.0001), AGP2 (P < 0.0001), and A1BG (P = 0.0003) were observed. The serum concentration of TRF was down-regulated in TB patients compared with healthy controls, which was coincident with the proteomics results. An additional validation of TRF was performed in an independent cohort of patients with active TB (n = 46), patients with lung cancer (n = 37), 20 HCs, and patients with pneumonia (n = 35) in the test set by nephelometry. The serum expression levels of TRF in the TB patients showed lower levels compared with those in patients with pneumonia (P = 0.0125), lung cancer (P = 0.0005), HCs (P < 0.0001), and the non-TB controls (P < 0.0001). Furthermore, the AUC value of TRF was 0.647 with 90.22% sensitivity and 42.86% specificity in discriminating the TB group from the pneumonia group, 0.702 with 93.48% sensitivity and 47.16% specificity in discriminating the TB group from the lung cancer group, 0.894 with 91.30% sensitivity and 71.62% specificity in discriminating the TB group from all HCs, and 0.792 with 91.30% sensitivity and 58.90% specificity in discriminating the TB group from the non-TB controls. This study obtained the proteomic profiles of neutrophils in the TB patients and HCs, which contribute to a better understanding of the pathogenesis molecules existing in the neutrophils of pulmonary tuberculosis and provide candidate biomarkers for the diagnosis of pulmonary tuberculosis.
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Affiliation(s)
- Xue Li
- Department
of Clinical Laboratory, The First Affiliated
Hospital of Nanchang University; Institute of Infection and Immunity,
Nanchang University, Nanchang, Jiangxi 330006, China
| | - Yujie Gao
- Department
of Clinical Laboratory, The First Affiliated
Hospital of Nanchang University; Institute of Infection and Immunity,
Nanchang University, Nanchang, Jiangxi 330006, China
| | - Jun Liu
- Department
of Clinical Laboratory, The First Affiliated
Hospital of Nanchang University; Institute of Infection and Immunity,
Nanchang University, Nanchang, Jiangxi 330006, China
| | - Qing Xujian
- Department
of Clinical Laboratory, The First Affiliated
Hospital of Nanchang University; Institute of Infection and Immunity,
Nanchang University, Nanchang, Jiangxi 330006, China
| | - Qing Luo
- Department
of Clinical Laboratory, The First Affiliated
Hospital of Nanchang University; Institute of Infection and Immunity,
Nanchang University, Nanchang, Jiangxi 330006, China
| | - Zikun Huang
- Department
of Clinical Laboratory, The First Affiliated
Hospital of Nanchang University; Institute of Infection and Immunity,
Nanchang University, Nanchang, Jiangxi 330006, China
| | - Junming Li
- Department
of Clinical Laboratory, The First Affiliated
Hospital of Nanchang University; Institute of Infection and Immunity,
Nanchang University, Nanchang, Jiangxi 330006, China
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Lee RH, Ghalloussi D, Harousseau GL, Kenny JP, Kramer PA, Proamer F, Nieswandt B, Flick MJ, Gachet C, Casari C, Eckly A, Bergmeier W. Rasa3 deficiency minimally affects thrombopoiesis but promotes severe thrombocytopenia due to integrin-dependent platelet clearance. JCI Insight 2022; 7:e155676. [PMID: 35290242 PMCID: PMC9089782 DOI: 10.1172/jci.insight.155676] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Accepted: 03/09/2022] [Indexed: 01/26/2023] Open
Abstract
Platelet homeostasis is dependent on a tight regulation of both platelet production and clearance. The small GTPase Rap1 mediates platelet adhesion and hemostatic plug formation. However, Rap1 signaling is also critical for platelet homeostasis as both Rap1 deficiency and uninhibited Rap1 signaling lead to marked thrombocytopenia in mice. Here, we investigated the mechanism by which deficiency in Rasa3, a critical negative regulator of Rap1, causes macrothrombocytopenia in mice. Despite marked morphological and ultrastructural abnormalities, megakaryocytes in hypomorphic Rasa3hlb/hlb (R3hlb/hlb) or Rasa3-/- mice demonstrated robust proplatelet formation in vivo, suggesting that defective thrombopoiesis is not the main cause of thrombocytopenia. Rather, we observed that R3hlb/hlb platelets became trapped in the spleen marginal zone/red pulp interface, with evidence of platelet phagocytosis by macrophages. Clearance of mutant platelets was also observed in the liver, especially in splenectomized mice. Platelet count and platelet life span in Rasa3-mutant mice were restored by genetic or pharmacological approaches to inhibit the Rap1/talin1/αIIbβ3 integrin axis. A similar pattern of splenic clearance was observed in mice injected with anti-αIIbβ3 but not anti-glycoprotein Ibα platelet-depleting antibodies. In summary, we describe a potentially novel, integrin-based mechanism of platelet clearance that could be critical for our understanding of select inherited and acquired thrombocytopenias.
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Affiliation(s)
- Robert H. Lee
- Department of Biochemistry and Biophysics and
- Blood Research Center, School of Medicine, University of North Carolina at Chapel Hill, North Carolina, USA
| | - Dorsaf Ghalloussi
- Department of Biochemistry and Biophysics and
- Blood Research Center, School of Medicine, University of North Carolina at Chapel Hill, North Carolina, USA
| | | | | | | | - Fabienne Proamer
- Université de Strasbourg, INSERM, EFS Grand Est, BPPS UMR-S 1255, FMTS, F-67065 Strasbourg, France
| | - Bernhard Nieswandt
- Institute of Experimental Biomedicine I, University Hospital Würzburg, Würzburg, Germany
- Rudolf Virchow Center, University of Würzburg, Würzburg, Germany
| | - Matthew J. Flick
- Blood Research Center, School of Medicine, University of North Carolina at Chapel Hill, North Carolina, USA
- Department of Pathology and Laboratory Medicine, School of Medicine, University of North Carolina at Chapel Hill, North Carolina, USA
| | - Christian Gachet
- Université de Strasbourg, INSERM, EFS Grand Est, BPPS UMR-S 1255, FMTS, F-67065 Strasbourg, France
| | - Caterina Casari
- Department of Biochemistry and Biophysics and
- HITh, UMR_S1176, INSERM, Université Paris-Saclay, Le Kremlin-Bicêtre, France
| | - Anita Eckly
- Université de Strasbourg, INSERM, EFS Grand Est, BPPS UMR-S 1255, FMTS, F-67065 Strasbourg, France
| | - Wolfgang Bergmeier
- Department of Biochemistry and Biophysics and
- Blood Research Center, School of Medicine, University of North Carolina at Chapel Hill, North Carolina, USA
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8
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Hamad MA, Krauel K, Schanze N, Gauchel N, Stachon P, Nuehrenberg T, Zurek M, Duerschmied D. Platelet Subtypes in Inflammatory Settings. Front Cardiovasc Med 2022; 9:823549. [PMID: 35463762 PMCID: PMC9021412 DOI: 10.3389/fcvm.2022.823549] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2021] [Accepted: 03/09/2022] [Indexed: 12/24/2022] Open
Abstract
In addition to their essential role in hemostasis and thrombosis, platelets also modulate inflammatory reactions and immune responses. This is achieved by specialized surface receptors as well as secretory products including inflammatory mediators and cytokines. Platelets can support and facilitate the recruitment of leukocytes into inflamed tissue. The various properties of platelet function make it less surprising that circulating platelets are different within one individual. Platelets have different physical properties leading to distinct subtypes of platelets based either on their function (procoagulant, aggregatory, secretory) or their age (reticulated/immature, non-reticulated/mature). To understand the significance of platelet phenotypic variation, qualitatively distinguishable platelet phenotypes should be studied in a variety of physiological and pathological circumstances. The advancement in proteomics instrumentation and tools (such as mass spectrometry-driven approaches) improved the ability to perform studies beyond that of foundational work. Despite the wealth of knowledge around molecular processes in platelets, knowledge gaps in understanding platelet phenotypes in health and disease exist. In this review, we report an overview of the role of platelet subpopulations in inflammation and a selection of tools for investigating the role of platelet subpopulations in inflammation.
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Affiliation(s)
- Muataz Ali Hamad
- Department of Cardiology and Angiology I, Heart Center, Faculty of Medicine, University of Freiburg, Freiburg im Breisgau, Germany
- Spemann Graduate School of Biology and Medicine (SGBM), University of Freiburg, Freiburg im Breisgau, Germany
- Faculty of Biology, University of Freiburg, Freiburg im Breisgau, Germany
| | - Krystin Krauel
- Department of Cardiology and Angiology I, Heart Center, Faculty of Medicine, University of Freiburg, Freiburg im Breisgau, Germany
- Department of Cardiology, Angiology, Haemostaseology, and Medical Intensive Care, University Medical Centre Mannheim, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Nancy Schanze
- Department of Cardiology and Angiology I, Heart Center, Faculty of Medicine, University of Freiburg, Freiburg im Breisgau, Germany
- Department of Cardiology, Angiology, Haemostaseology, and Medical Intensive Care, University Medical Centre Mannheim, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Nadine Gauchel
- Department of Cardiology and Angiology I, Heart Center, Faculty of Medicine, University of Freiburg, Freiburg im Breisgau, Germany
| | - Peter Stachon
- Department of Cardiology and Angiology I, Heart Center, Faculty of Medicine, University of Freiburg, Freiburg im Breisgau, Germany
| | - Thomas Nuehrenberg
- Department of Cardiology and Angiology II, Heart Center, Faculty of Medicine, University of Freiburg, Bad Krozingen, Germany
| | - Mark Zurek
- Department of Cardiology and Angiology II, Heart Center, Faculty of Medicine, University of Freiburg, Bad Krozingen, Germany
| | - Daniel Duerschmied
- Department of Cardiology and Angiology I, Heart Center, Faculty of Medicine, University of Freiburg, Freiburg im Breisgau, Germany
- Department of Cardiology, Angiology, Haemostaseology, and Medical Intensive Care, University Medical Centre Mannheim, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
- European Center for AngioScience (ECAS) and German Center for Cardiovascular Research (DZHK) Partner Site Heidelberg/Mannheim, Mannheim, Germany
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9
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Lecot P, Ardin M, Dussurgey S, Alcazer V, Moudombi L, Pereira Abrantes M, Hubert M, Swalduz A, Hernandez‐Vargas H, Viari A, Caux C, Michallet M. Gene signature of circulating platelet‐bound neutrophils is associated with poor prognosis in cancer patients. Int J Cancer 2022; 151:138-152. [PMID: 35253899 PMCID: PMC9311065 DOI: 10.1002/ijc.33991] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 02/08/2022] [Accepted: 02/17/2022] [Indexed: 11/15/2022]
Abstract
Beyond their critical role in hemostasis, platelets physically interact with neutrophils to form neutrophil‐platelet aggregates (NPAs), enhancing neutrophil effector functions during inflammation. NPAs may also promote disease worsening in various inflammatory diseases. However, characterization of NPAs in cancer remains totally unexplored. Using ImageStreamX (ISX) imaging flow cytometer, we were not only allowed able to detect CD15+ CD14− CD36+ ITGA2B+ NPAs in both healthy donors' (HDs) and cancer patients' bloods, but we also showed that NPAs result from the binding of platelets preferentially to low‐density neutrophils (LDNs) as opposed to normal‐density neutrophils (NDNs). By reanalyzing two independent public scRNAseq data of whole blood leukocytes from cancer patients and HDs, we could identify a subset of neutrophils with high platelet gene expression that may correspond to NPAs. Moreover, we showed that cancer patients' derived NPAs possessed a distinct molecular signature compared to the other neutrophil subsets, independently of platelet genes. Gene ontology (GO) term enrichment analysis of this NPAs‐associated neutrophil transcriptomic signature revealed a significant enrichment of neutrophil degranulation, chemotaxis and trans‐endothelial migration GO terms. Lastly, using The Cancer Genome Atlas (TCGA), we could show by multivariate Cox analysis that the NPAs‐associated neutrophil transcriptomic signature was associated with a worse patient prognosis in several cancer types. These results suggest that neutrophils from NPAs are systemically primed by platelets empowering them with cancer progression capacities once at tumor site. NPAs may therefore hold clinical utility as novel noninvasive blood prognostic biomarker in cancer patients with solid tumors.
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Affiliation(s)
- Pacôme Lecot
- TERI (Tumor Escape, Resistance and Immunity) Department, Centre de Recherche en Cancérologie de Lyon, Centre Léon Bérard, Université de Lyon, Université Claude Bernard Lyon 1, INSERM 1052, CNRS 5286 Lyon France
| | - Maude Ardin
- TERI (Tumor Escape, Resistance and Immunity) Department, Centre de Recherche en Cancérologie de Lyon, Centre Léon Bérard, Université de Lyon, Université Claude Bernard Lyon 1, INSERM 1052, CNRS 5286 Lyon France
| | - Sébastien Dussurgey
- Université de Lyon, SFR Biosciences, ENS de Lyon, Inserm US8, CNRS UMS3444, UCBL ‐ 50 Avenue Tony Garnier Lyon France
| | - Vincent Alcazer
- TERI (Tumor Escape, Resistance and Immunity) Department, Centre de Recherche en Cancérologie de Lyon, Centre Léon Bérard, Université de Lyon, Université Claude Bernard Lyon 1, INSERM 1052, CNRS 5286 Lyon France
| | - Lyvia Moudombi
- TERI (Tumor Escape, Resistance and Immunity) Department, Centre de Recherche en Cancérologie de Lyon, Centre Léon Bérard, Université de Lyon, Université Claude Bernard Lyon 1, INSERM 1052, CNRS 5286 Lyon France
| | - Manuela Pereira Abrantes
- TERI (Tumor Escape, Resistance and Immunity) Department, Centre de Recherche en Cancérologie de Lyon, Centre Léon Bérard, Université de Lyon, Université Claude Bernard Lyon 1, INSERM 1052, CNRS 5286 Lyon France
| | - Margaux Hubert
- TERI (Tumor Escape, Resistance and Immunity) Department, Centre de Recherche en Cancérologie de Lyon, Centre Léon Bérard, Université de Lyon, Université Claude Bernard Lyon 1, INSERM 1052, CNRS 5286 Lyon France
| | - Aurélie Swalduz
- Department of Lung and Thoracic Medical Oncology Centre Léon Bérard Lyon France
| | - Hector Hernandez‐Vargas
- TERI (Tumor Escape, Resistance and Immunity) Department, Centre de Recherche en Cancérologie de Lyon, Centre Léon Bérard, Université de Lyon, Université Claude Bernard Lyon 1, INSERM 1052, CNRS 5286 Lyon France
| | - Alain Viari
- Synergie Lyon Cancer, Plateforme de Bio‐informatique ‘Gilles Thomas’ Lyon France
| | - Christophe Caux
- TERI (Tumor Escape, Resistance and Immunity) Department, Centre de Recherche en Cancérologie de Lyon, Centre Léon Bérard, Université de Lyon, Université Claude Bernard Lyon 1, INSERM 1052, CNRS 5286 Lyon France
| | - Marie‐Cécile Michallet
- TERI (Tumor Escape, Resistance and Immunity) Department, Centre de Recherche en Cancérologie de Lyon, Centre Léon Bérard, Université de Lyon, Université Claude Bernard Lyon 1, INSERM 1052, CNRS 5286 Lyon France
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10
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Neutrophil-Derived Extracellular Vesicles Activate Platelets after Pneumolysin Exposure. Cells 2021; 10:cells10123581. [PMID: 34944089 PMCID: PMC8700313 DOI: 10.3390/cells10123581] [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: 11/03/2021] [Revised: 12/13/2021] [Accepted: 12/14/2021] [Indexed: 12/12/2022] Open
Abstract
Pneumolysin (PLY) is a pore-forming toxin of Streptococcus pneumoniae that contributes substantially to the inflammatory processes underlying pneumococcal pneumonia and lung injury. Host responses against S. pneumoniae are regulated in part by neutrophils and platelets, both individually and in cooperative interaction. Previous studies have shown that PLY can target both neutrophils and platelets, however, the mechanisms by which PLY directly affects these cells and alters their interactions are not completely understood. In this study, we characterize the effects of PLY on neutrophils and platelets and explore the mechanisms by which PLY may induce neutrophil–platelet interactions. In vitro studies demonstrated that PLY causes the formation of neutrophil extracellular traps (NETs) and the release of extracellular vesicles (EVs) from both human and murine neutrophils. In vivo, neutrophil EV (nEV) levels were increased in mice infected with S. pneumoniae. In platelets, treatment with PLY induced the cell surface expression of P-selectin (CD62P) and binding to annexin V and caused a significant release of platelet EVs (pl-EVs). Moreover, PLY-induced nEVs but not NETs promoted platelet activation. The pretreatment of nEVs with proteinase K inhibited platelet activation, indicating that the surface proteins of nEVs play a role in this process. Our findings demonstrate that PLY activates neutrophils and platelets to release EVs and support an important role for neutrophil EVs in modulating platelet functions in pneumococcal infections.
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11
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Jank M, von Niessen N, Olivier CB, Schmitt H, Anto-Michel N, Hilgendorf I, Bode C, Moser M, Esser JS, Zhou Q. Platelet Bone Morphogenetic Protein-4 Mediates Vascular Inflammation and Neointima Formation after Arterial Injury. Cells 2021; 10:2027. [PMID: 34440796 PMCID: PMC8394465 DOI: 10.3390/cells10082027] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 08/04/2021] [Accepted: 08/05/2021] [Indexed: 12/26/2022] Open
Abstract
The purpose of this study is to investigate the role of platelet bone morphogenetic proteins (BMP)-4 during vascular inflammation and remodeling in a mouse model of carotid wire injury. Transgenic mice with a platelet-specific deletion of BMP-4 (BMP4Plt-/-) were generated. Intravital microscopy was performed to evaluate leukocyte adhesion to the vessel wall. Expression of adhesion molecules and chemokines were analyzed. Platelet-leukocyte aggregates (PLAs) were evaluated using flow cytometry. For carotid wire injury, BMP4Plt-/- mice were further crossed with LDLr-/- mice (BMP4Plt-/-/LDLr-/-) and fed with a high cholesterol diet for 2-weeks. Carotid wire injury was performed, and re-endothelialization and neointimal formation were evaluated. In comparison to the control mice, stimulation with TNFα resulted in fewer rolling and adherent leukocytes to the vessel wall in the BMP4Plt-/- mice. mRNA and protein expression of P-selectin and adhesion molecules were reduced in the aorta of the BMP4Plt-/- mice. In platelets from the BMP4Plt-/- mice, the expression of P-selectin was reduced, and fewer PLA formations were measured than in the control mice. Loss of platelet BMP-4 further prevented neointima formation after carotid wire injury. Endothelial regeneration after injury was decelerated in the BMP4Plt-/- mice, and confirmed in-vitro, where the deletion of platelet BMP-4 inhibited endothelial cell proliferation and migration. We demonstrate for the first time that platelet BMP-4 is involved during vascular inflammation and remodeling. This is partially mediated by the inhibition of platelet activation, reduced expression of adhesion molecules and inflammatory responses. Our findings identify platelet BMP-4 as a mediator of vascular inflammation in early atherosclerosis and restenosis.
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Affiliation(s)
- Marietta Jank
- University Heart Center Freiburg—Bad Krozingen, Department of Cardiology and Angiology I, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany; (M.J.); (N.v.N.); (C.B.O.); (H.S.); (N.A.-M.); (I.H.); (C.B.); (M.M.); (J.S.E.)
| | - Nikolaus von Niessen
- University Heart Center Freiburg—Bad Krozingen, Department of Cardiology and Angiology I, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany; (M.J.); (N.v.N.); (C.B.O.); (H.S.); (N.A.-M.); (I.H.); (C.B.); (M.M.); (J.S.E.)
| | - Christoph B. Olivier
- University Heart Center Freiburg—Bad Krozingen, Department of Cardiology and Angiology I, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany; (M.J.); (N.v.N.); (C.B.O.); (H.S.); (N.A.-M.); (I.H.); (C.B.); (M.M.); (J.S.E.)
| | - Hannah Schmitt
- University Heart Center Freiburg—Bad Krozingen, Department of Cardiology and Angiology I, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany; (M.J.); (N.v.N.); (C.B.O.); (H.S.); (N.A.-M.); (I.H.); (C.B.); (M.M.); (J.S.E.)
| | - Nathaly Anto-Michel
- University Heart Center Freiburg—Bad Krozingen, Department of Cardiology and Angiology I, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany; (M.J.); (N.v.N.); (C.B.O.); (H.S.); (N.A.-M.); (I.H.); (C.B.); (M.M.); (J.S.E.)
| | - Ingo Hilgendorf
- University Heart Center Freiburg—Bad Krozingen, Department of Cardiology and Angiology I, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany; (M.J.); (N.v.N.); (C.B.O.); (H.S.); (N.A.-M.); (I.H.); (C.B.); (M.M.); (J.S.E.)
- University Heart Center Freiburg—Bad Krozingen, Institute for Experimental Cardiovascular Medicine, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany
| | - Christoph Bode
- University Heart Center Freiburg—Bad Krozingen, Department of Cardiology and Angiology I, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany; (M.J.); (N.v.N.); (C.B.O.); (H.S.); (N.A.-M.); (I.H.); (C.B.); (M.M.); (J.S.E.)
| | - Martin Moser
- University Heart Center Freiburg—Bad Krozingen, Department of Cardiology and Angiology I, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany; (M.J.); (N.v.N.); (C.B.O.); (H.S.); (N.A.-M.); (I.H.); (C.B.); (M.M.); (J.S.E.)
| | - Jennifer S. Esser
- University Heart Center Freiburg—Bad Krozingen, Department of Cardiology and Angiology I, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany; (M.J.); (N.v.N.); (C.B.O.); (H.S.); (N.A.-M.); (I.H.); (C.B.); (M.M.); (J.S.E.)
| | - Qian Zhou
- University Heart Center Freiburg—Bad Krozingen, Department of Cardiology and Angiology I, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany; (M.J.); (N.v.N.); (C.B.O.); (H.S.); (N.A.-M.); (I.H.); (C.B.); (M.M.); (J.S.E.)
- Department of Medicine, Division of Cardiology, University Hospital Basel, 4031 Basel, Switzerland
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12
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Platelets as drivers of ischemia/reperfusion injury after stroke. Blood Adv 2021; 5:1576-1584. [PMID: 33687431 DOI: 10.1182/bloodadvances.2020002888] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Accepted: 02/01/2021] [Indexed: 12/14/2022] Open
Abstract
Ischemic stroke is a leading cause of morbidity and mortality worldwide and, despite reperfusion either via thrombolysis or thrombectomy, stroke patients often suffer from lifelong disabilities. These persistent neurological deficits may be improved by treating the ischemia/reperfusion (I/R) injury that occurs following ischemic stroke. There are currently no approved therapies to treat I/R injury, and thus it is imperative to find new targets to decrease the burden of ischemic stroke and related diseases. Platelets, cell fragments from megakaryocytes, are primarily known for their role in hemostasis. More recently, investigators have studied the nonhemostatic role of platelets in inflammatory pathologies, such as I/R injury after ischemic stroke. In this review, we seek to provide an overview of how I/R can lead to platelet activation and how activated platelets, in turn, can exacerbate I/R injury after stroke. We will also discuss potential mechanisms by which platelets may ameliorate I/R injury.
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13
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Hug S, Bernhard S, Stratmann AEP, Erber M, Wohlgemuth L, Knapp CL, Bauer JM, Vidoni L, Fauler M, Föhr KJ, Radermacher P, Hoffmann A, Huber-Lang M, Messerer DAC. Activation of Neutrophil Granulocytes by Platelet-Activating Factor Is Impaired During Experimental Sepsis. Front Immunol 2021; 12:642867. [PMID: 33796110 PMCID: PMC8007865 DOI: 10.3389/fimmu.2021.642867] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Accepted: 02/15/2021] [Indexed: 11/13/2022] Open
Abstract
Platelet-activating factor (PAF) is an important mediator of the systemic inflammatory response. In the case of sepsis, proper activation and function of neutrophils as the first line of cellular defense are based on a well-balanced physiological response. However, little is known about the role of PAF in cellular changes of neutrophils during sepsis. Therefore, this study investigates the reaction patterns of neutrophils induced by PAF with a focus on membrane potential (MP), intracellular pH, and cellular swelling under physiological and pathophysiological conditions and hypothesizes that the PAF-mediated response of granulocytes is altered during sepsis. The cellular response of granulocytes including MP, intracellular pH, cellular swelling, and other activation markers were analyzed by multiparametric flow cytometry. In addition, the chemotactic activity and the formation of platelet-neutrophil complexes after exposure to PAF were investigated. The changes of the (electro-)physiological response features were translationally verified in a human ex vivo whole blood model of endotoxemia as well as during polymicrobial porcine sepsis. In neutrophils from healthy human donors, PAF elicited a rapid depolarization, an intracellular alkalization, and an increase in cell size in a time- and dose-dependent manner. Mechanistically, the alkalization was dependent on sodium-proton exchanger 1 (NHE1) activity, while the change in cellular shape was sodium flux- but only partially NHE1-dependent. In a pathophysiological altered environment, the PAF-induced response of neutrophils was modulated. Acidifying the extracellular pH in vitro enhanced PAF-mediated depolarization, whereas the increases in cell size and intracellular pH were largely unaffected. Ex vivo exposure of human whole blood to lipopolysaccharide diminished the PAF-induced intracellular alkalization and the change in neutrophil size. During experimental porcine sepsis, depolarization of the MP was significantly impaired. Additionally, there was a trend for increased cellular swelling, whereas intracellular alkalization remained stable. Overall, an impaired (electro-)physiological response of neutrophils to PAF stimulation represents a cellular hallmark of those cells challenged during systemic inflammation. Furthermore, this altered response may be indicative of and causative for the development of neutrophil dysfunction during sepsis.
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Affiliation(s)
- Stefan Hug
- Institute of Clinical and Experimental Trauma Immunology, University Hospital of Ulm, Ulm, Germany
| | - Stefan Bernhard
- Institute of Clinical and Experimental Trauma Immunology, University Hospital of Ulm, Ulm, Germany
| | | | - Maike Erber
- Institute of Clinical and Experimental Trauma Immunology, University Hospital of Ulm, Ulm, Germany
| | - Lisa Wohlgemuth
- Institute of Clinical and Experimental Trauma Immunology, University Hospital of Ulm, Ulm, Germany
| | - Christiane Leonie Knapp
- Institute of Clinical and Experimental Trauma Immunology, University Hospital of Ulm, Ulm, Germany
| | - Jonas Martin Bauer
- Institute of Clinical and Experimental Trauma Immunology, University Hospital of Ulm, Ulm, Germany
| | - Laura Vidoni
- Institute of Clinical and Experimental Trauma Immunology, University Hospital of Ulm, Ulm, Germany
| | - Michael Fauler
- Institute of General Physiology, University of Ulm, Ulm, Germany
| | - Karl Josef Föhr
- Department of Anesthesiology and Intensive Care Medicine, University Hospital of Ulm, Ulm, Germany
| | - Peter Radermacher
- Institute of Anesthesiological Pathophysiology and Process Development, University Hospital of Ulm, Ulm, Germany
| | - Andrea Hoffmann
- Institute of Anesthesiological Pathophysiology and Process Development, University Hospital of Ulm, Ulm, Germany
| | - Markus Huber-Lang
- Institute of Clinical and Experimental Trauma Immunology, University Hospital of Ulm, Ulm, Germany
| | - David Alexander Christian Messerer
- Institute of Clinical and Experimental Trauma Immunology, University Hospital of Ulm, Ulm, Germany.,Department of Anesthesiology and Intensive Care Medicine, University Hospital of Ulm, Ulm, Germany.,Institute of Anesthesiological Pathophysiology and Process Development, University Hospital of Ulm, Ulm, Germany
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14
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Messerer DAC, Vidoni L, Erber M, Stratmann AEP, Bauer JM, Braun CK, Hug S, Adler A, Nilsson Ekdahl K, Nilsson B, Barth E, Radermacher P, Huber-Lang M. Animal-Free Human Whole Blood Sepsis Model to Study Changes in Innate Immunity. Front Immunol 2020; 11:571992. [PMID: 33178198 PMCID: PMC7592114 DOI: 10.3389/fimmu.2020.571992] [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: 06/12/2020] [Accepted: 09/21/2020] [Indexed: 12/29/2022] Open
Abstract
Studying innate immunity in humans is crucial for understanding its role in the pathophysiology of systemic inflammation, particularly in the complex setting of sepsis. Therefore, we standardized a step-by-step process from the venipuncture to the transfer in a human model system, while closely monitoring the inflammatory response for up to three hours. We designed an animal-free, human whole blood sepsis model using a commercially available, simple to use, tubing system. First, we analyzed routine clinical parameters, including cell count and blood gas analysis. Second, we demonstrated that extracellular activation markers (e.g., CD11b and CD62l) as well as intracellular metabolic (intracellular pH) and functional (generation of radical oxygen species) features remained stable after incubation in the whole blood model. Third, we mimicked systemic inflammation during early sepsis by exposure of whole blood to pathogen-associated molecular patterns. Stimulation with lipopolysaccharide revealed the capability of the model system to evoke a sepsis-like inflammatory phenotype of innate immunity. In summary, the presented model serves as a convenient, economic, and reliable platform to study innate immunity in human whole blood, which may yield clinically important insights.
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Affiliation(s)
- David Alexander Christian Messerer
- Institute of Clinical and Experimental Trauma Immunology, University Hospital of Ulm, Ulm, Germany.,Department of Anesthesiology and Intensive Care Medicine, University Hospital of Ulm, Ulm, Germany
| | - Laura Vidoni
- Institute of Clinical and Experimental Trauma Immunology, University Hospital of Ulm, Ulm, Germany
| | - Maike Erber
- Institute of Clinical and Experimental Trauma Immunology, University Hospital of Ulm, Ulm, Germany
| | | | - Jonas Martin Bauer
- Institute of Clinical and Experimental Trauma Immunology, University Hospital of Ulm, Ulm, Germany
| | - Christian Karl Braun
- Institute of Clinical and Experimental Trauma Immunology, University Hospital of Ulm, Ulm, Germany
| | - Stefan Hug
- Institute of Clinical and Experimental Trauma Immunology, University Hospital of Ulm, Ulm, Germany
| | - Anna Adler
- Rudbeck Laboratory, Department of Immunology, Genetics and Pathology, Uppsala, Sweden
| | - Kristina Nilsson Ekdahl
- Rudbeck Laboratory, Department of Immunology, Genetics and Pathology, Uppsala, Sweden.,Centre of Biomaterials Chemistry, Linnaeus University, Kalmar, Sweden
| | - Bo Nilsson
- Rudbeck Laboratory, Department of Immunology, Genetics and Pathology, Uppsala, Sweden
| | - Eberhard Barth
- Department of Anesthesiology and Intensive Care Medicine, University Hospital of Ulm, Ulm, Germany
| | - Peter Radermacher
- Institute for Anesthesiologic Pathophysiology and Process Engineering, Ulm University, Ulm, Germany
| | - Markus Huber-Lang
- Institute of Clinical and Experimental Trauma Immunology, University Hospital of Ulm, Ulm, Germany
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15
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Li JL, Zarbock A, Hidalgo A. Platelets as autonomous drones for hemostatic and immune surveillance. J Exp Med 2020; 214:2193-2204. [PMID: 28720569 PMCID: PMC5551582 DOI: 10.1084/jem.20170879] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Revised: 06/26/2017] [Accepted: 07/06/2017] [Indexed: 12/13/2022] Open
Abstract
Platelets participate in many important physiological processes, including hemostasis and immunity. However, despite their broad participation in these evolutionarily critical roles, the anucleate platelet is uniquely mammalian. In contrast with the large nucleated equivalents in lower vertebrates, we find that the design template for the evolutionary specialization of platelets shares remarkable similarities with human-engineered unmanned aerial vehicles in terms of overall autonomy, maneuverability, and expendability. Here, we review evidence illustrating how platelets are uniquely suited for surveillance and the manner in which they consequently provide various types of support to other cell types.
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Affiliation(s)
- Jackson LiangYao Li
- Area of Developmental and Cell Biology, Centro Nacional de Investigaciones Cardiovasculares Carlos III, Madrid, Spain.,Singapore Immunology Network, Agency for Science, Technology and Research, Singapore, Singapore
| | - Alexander Zarbock
- Department of Anesthesiology, Intensive Care, and Pain Medicine, University of Münster, Münster, Germany
| | - Andrés Hidalgo
- Area of Developmental and Cell Biology, Centro Nacional de Investigaciones Cardiovasculares Carlos III, Madrid, Spain.,Institute for Cardiovascular Prevention, Ludwig-Maximillians-University, Munich, Germany
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16
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Mauler M, Herr N, Schoenichen C, Witsch T, Marchini T, Härdtner C, Koentges C, Kienle K, Ollivier V, Schell M, Dorner L, Wippel C, Stallmann D, Normann C, Bugger H, Walther P, Wolf D, Ahrens I, Lämmermann T, Ho-Tin-Noé B, Ley K, Bode C, Hilgendorf I, Duerschmied D. Platelet Serotonin Aggravates Myocardial Ischemia/Reperfusion Injury via Neutrophil Degranulation. Circulation 2019; 139:918-931. [PMID: 30586717 DOI: 10.1161/circulationaha.118.033942] [Citation(s) in RCA: 87] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
BACKGROUND Platelets store large amounts of serotonin that they release during thrombus formation or acute inflammation. This facilitates hemostasis and modulates the inflammatory response. METHODS Infarct size, heart function, and inflammatory cell composition were analyzed in mouse models of myocardial reperfusion injury with genetic and pharmacological depletion of platelet serotonin. These studies were complemented by in vitro serotonin stimulation assays of platelets and leukocytes in mice and men, and by measuring plasma serotonin levels and leukocyte activation in patients with acute coronary syndrome. RESULTS Platelet-derived serotonin induced neutrophil degranulation with release of myeloperoxidase and hydrogen peroxide (H2O2) and increased expression of membrane-bound leukocyte adhesion molecule CD11b, leading to enhanced inflammation in the infarct area and reduced myocardial salvage. In patients hospitalized with acute coronary syndrome, plasmatic serotonin levels correlated with CD11b expression on neutrophils and myeloperoxidase plasma levels. Long-term serotonin reuptake inhibition-reported to protect patients with depression from cardiovascular events-resulted in the depletion of platelet serotonin stores in mice. These mice displayed a reduction in neutrophil degranulation and preserved cardiac function. In line, patients with depression using serotonin reuptake inhibition, presented with suppressed levels of CD11b surface expression on neutrophils and lower myeloperoxidase levels in blood. CONCLUSIONS Taken together, we identify serotonin as a potent therapeutic target in neutrophil-dependent thromboinflammation during myocardial reperfusion injury.
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Affiliation(s)
- Maximilian Mauler
- Faculty of Biology (M.M., K.K.), University of Freiburg, Germany.,Faculty of Medicine (M.M., N.H., C.S., T.W., T.M., C.H., C.K., M.S., L.D., C.W., D.S., C.N., H.B., D.W., C.B., I.H., D.D.), University of Freiburg, Germany.,Department of Cardiology and Angiology I, Heart Center (M.M., N.H., C.S., T.M., C.H., C.K., M.S., L.D., C.W., D.S., H.B., D.W., I.A., C.B., I.H., D.D.), University of Freiburg, Germany
| | - Nadine Herr
- Faculty of Medicine (M.M., N.H., C.S., T.W., T.M., C.H., C.K., M.S., L.D., C.W., D.S., C.N., H.B., D.W., C.B., I.H., D.D.), University of Freiburg, Germany.,Department of Cardiology and Angiology I, Heart Center (M.M., N.H., C.S., T.M., C.H., C.K., M.S., L.D., C.W., D.S., H.B., D.W., I.A., C.B., I.H., D.D.), University of Freiburg, Germany
| | - Claudia Schoenichen
- Faculty of Medicine (M.M., N.H., C.S., T.W., T.M., C.H., C.K., M.S., L.D., C.W., D.S., C.N., H.B., D.W., C.B., I.H., D.D.), University of Freiburg, Germany.,Department of Cardiology and Angiology I, Heart Center (M.M., N.H., C.S., T.M., C.H., C.K., M.S., L.D., C.W., D.S., H.B., D.W., I.A., C.B., I.H., D.D.), University of Freiburg, Germany
| | - Thilo Witsch
- Faculty of Medicine (M.M., N.H., C.S., T.W., T.M., C.H., C.K., M.S., L.D., C.W., D.S., C.N., H.B., D.W., C.B., I.H., D.D.), University of Freiburg, Germany
| | - Timoteo Marchini
- Faculty of Medicine (M.M., N.H., C.S., T.W., T.M., C.H., C.K., M.S., L.D., C.W., D.S., C.N., H.B., D.W., C.B., I.H., D.D.), University of Freiburg, Germany.,Department of Cardiology and Angiology I, Heart Center (M.M., N.H., C.S., T.M., C.H., C.K., M.S., L.D., C.W., D.S., H.B., D.W., I.A., C.B., I.H., D.D.), University of Freiburg, Germany
| | - Carmen Härdtner
- Faculty of Medicine (M.M., N.H., C.S., T.W., T.M., C.H., C.K., M.S., L.D., C.W., D.S., C.N., H.B., D.W., C.B., I.H., D.D.), University of Freiburg, Germany.,Department of Cardiology and Angiology I, Heart Center (M.M., N.H., C.S., T.M., C.H., C.K., M.S., L.D., C.W., D.S., H.B., D.W., I.A., C.B., I.H., D.D.), University of Freiburg, Germany
| | - Christoph Koentges
- Faculty of Medicine (M.M., N.H., C.S., T.W., T.M., C.H., C.K., M.S., L.D., C.W., D.S., C.N., H.B., D.W., C.B., I.H., D.D.), University of Freiburg, Germany.,Department of Cardiology and Angiology I, Heart Center (M.M., N.H., C.S., T.M., C.H., C.K., M.S., L.D., C.W., D.S., H.B., D.W., I.A., C.B., I.H., D.D.), University of Freiburg, Germany
| | - Korbinian Kienle
- Faculty of Biology (M.M., K.K.), University of Freiburg, Germany.,Max Planck Institute of Immunobiology and Epigenetics, Group Immune Cell Dynamics (K.K., T.L.), Germany
| | - Véronique Ollivier
- INSERM Unit 1148, University Paris Diderot (V.O., B.H-T-N.), France.,Laboratory for Vascular Translational Science, Sorbonne Paris Cité (V.O., B.H-T-N.), France
| | - Maximilian Schell
- Faculty of Medicine (M.M., N.H., C.S., T.W., T.M., C.H., C.K., M.S., L.D., C.W., D.S., C.N., H.B., D.W., C.B., I.H., D.D.), University of Freiburg, Germany.,Department of Cardiology and Angiology I, Heart Center (M.M., N.H., C.S., T.M., C.H., C.K., M.S., L.D., C.W., D.S., H.B., D.W., I.A., C.B., I.H., D.D.), University of Freiburg, Germany
| | - Ludwig Dorner
- Faculty of Medicine (M.M., N.H., C.S., T.W., T.M., C.H., C.K., M.S., L.D., C.W., D.S., C.N., H.B., D.W., C.B., I.H., D.D.), University of Freiburg, Germany.,Department of Cardiology and Angiology I, Heart Center (M.M., N.H., C.S., T.M., C.H., C.K., M.S., L.D., C.W., D.S., H.B., D.W., I.A., C.B., I.H., D.D.), University of Freiburg, Germany
| | - Christopher Wippel
- Faculty of Medicine (M.M., N.H., C.S., T.W., T.M., C.H., C.K., M.S., L.D., C.W., D.S., C.N., H.B., D.W., C.B., I.H., D.D.), University of Freiburg, Germany.,Department of Cardiology and Angiology I, Heart Center (M.M., N.H., C.S., T.M., C.H., C.K., M.S., L.D., C.W., D.S., H.B., D.W., I.A., C.B., I.H., D.D.), University of Freiburg, Germany
| | - Daniela Stallmann
- Faculty of Medicine (M.M., N.H., C.S., T.W., T.M., C.H., C.K., M.S., L.D., C.W., D.S., C.N., H.B., D.W., C.B., I.H., D.D.), University of Freiburg, Germany.,Department of Cardiology and Angiology I, Heart Center (M.M., N.H., C.S., T.M., C.H., C.K., M.S., L.D., C.W., D.S., H.B., D.W., I.A., C.B., I.H., D.D.), University of Freiburg, Germany
| | - Claus Normann
- Faculty of Medicine (M.M., N.H., C.S., T.W., T.M., C.H., C.K., M.S., L.D., C.W., D.S., C.N., H.B., D.W., C.B., I.H., D.D.), University of Freiburg, Germany.,Department of Psychiatry, University Medical Center Freiburg (C.N.), Germany
| | - Heiko Bugger
- Faculty of Medicine (M.M., N.H., C.S., T.W., T.M., C.H., C.K., M.S., L.D., C.W., D.S., C.N., H.B., D.W., C.B., I.H., D.D.), University of Freiburg, Germany.,Department of Cardiology and Angiology I, Heart Center (M.M., N.H., C.S., T.M., C.H., C.K., M.S., L.D., C.W., D.S., H.B., D.W., I.A., C.B., I.H., D.D.), University of Freiburg, Germany
| | - Paul Walther
- Central Facility for Electron Microscopy, Ulm University; Ulm, Germany (P.W.)
| | - Dennis Wolf
- Faculty of Medicine (M.M., N.H., C.S., T.W., T.M., C.H., C.K., M.S., L.D., C.W., D.S., C.N., H.B., D.W., C.B., I.H., D.D.), University of Freiburg, Germany.,Department of Cardiology and Angiology I, Heart Center (M.M., N.H., C.S., T.M., C.H., C.K., M.S., L.D., C.W., D.S., H.B., D.W., I.A., C.B., I.H., D.D.), University of Freiburg, Germany.,La Jolla Institute for Allergy and Immunology, La Jolla, CA (D.W., K.L.)
| | - Ingo Ahrens
- Department of Cardiology and Angiology I, Heart Center (M.M., N.H., C.S., T.M., C.H., C.K., M.S., L.D., C.W., D.S., H.B., D.W., I.A., C.B., I.H., D.D.), University of Freiburg, Germany
| | - Tim Lämmermann
- Max Planck Institute of Immunobiology and Epigenetics, Group Immune Cell Dynamics (K.K., T.L.), Germany
| | - Benoît Ho-Tin-Noé
- INSERM Unit 1148, University Paris Diderot (V.O., B.H-T-N.), France.,Laboratory for Vascular Translational Science, Sorbonne Paris Cité (V.O., B.H-T-N.), France
| | - Klaus Ley
- La Jolla Institute for Allergy and Immunology, La Jolla, CA (D.W., K.L.)
| | - Christoph Bode
- Faculty of Medicine (M.M., N.H., C.S., T.W., T.M., C.H., C.K., M.S., L.D., C.W., D.S., C.N., H.B., D.W., C.B., I.H., D.D.), University of Freiburg, Germany.,Department of Cardiology and Angiology I, Heart Center (M.M., N.H., C.S., T.M., C.H., C.K., M.S., L.D., C.W., D.S., H.B., D.W., I.A., C.B., I.H., D.D.), University of Freiburg, Germany
| | - Ingo Hilgendorf
- Faculty of Medicine (M.M., N.H., C.S., T.W., T.M., C.H., C.K., M.S., L.D., C.W., D.S., C.N., H.B., D.W., C.B., I.H., D.D.), University of Freiburg, Germany.,Department of Cardiology and Angiology I, Heart Center (M.M., N.H., C.S., T.M., C.H., C.K., M.S., L.D., C.W., D.S., H.B., D.W., I.A., C.B., I.H., D.D.), University of Freiburg, Germany
| | - Daniel Duerschmied
- Faculty of Medicine (M.M., N.H., C.S., T.W., T.M., C.H., C.K., M.S., L.D., C.W., D.S., C.N., H.B., D.W., C.B., I.H., D.D.), University of Freiburg, Germany.,Department of Cardiology and Angiology I, Heart Center (M.M., N.H., C.S., T.M., C.H., C.K., M.S., L.D., C.W., D.S., H.B., D.W., I.A., C.B., I.H., D.D.), University of Freiburg, Germany
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17
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Esiaba I, Mousselli I, M. Faison G, M. Angeles D, S. Boskovic D. Platelets in the Newborn. NEONATAL MEDICINE 2019. [DOI: 10.5772/intechopen.86715] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
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18
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Circulating platelet-neutrophil aggregates as risk factor for deep venous thrombosis. ACTA ACUST UNITED AC 2019; 57:707-715. [DOI: 10.1515/cclm-2018-0909] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Accepted: 10/28/2018] [Indexed: 01/30/2023]
Abstract
Abstract
Background
Platelet-neutrophil aggregates (PNAs) are fundamental mechanisms linking hemostasis and inflammatory processes. Elevated level of PNAs have been reported in inflammatory diseases and coronary artery diseases. However, studies on the correlation between PNAs formation and deep venous thrombosis (DVT) are not available.
Methods
A total of 92 participants were involved in this study, including 32 cases with DVT and 60 cases without DVT. Blood samples coagulated by K2-EDTA or sodium citrate were prepared for blood cell count and blood smears. PNAs and platelet activation were measured using flow cytometry. The correlation between platelet activation level and PNAs level was analyzed by linear regression. Receiver operating characteristic (ROC) analysis was performed, assessing the prognostic performance of PNAs to predict potential risk of DVT occurrence.
Results
PNAs was found in the blood smears of patients with DVT. Significant increased level of PNAs was identified in DVT group (medium 8.43%, interquartile range [IQR] 4.11%–15.69%), compared with that in control group (5.16%, IQR 2.40–9.60, p<0.01). The DVT group also showed a dramatic elevated level of total platelet activation (medium 16.06%, IQR 6.04–22.05) vs. control group (11.26%, IQR 5.54–19.99, p<0.05). The PNAs level was correlated with total platelet activation (r2=0.58, p<0.0001). A significantly high odds ratio (OR) of DVT occurrence was identified when the level of PNAs was higher than 7.4% (OR 3.60, 95% confidence interval [CI] 1.463–8.838, p<0.01).
Conclusions
An elevated level of PNAs was associated with risk of DVT occurrence, which might be a suitable marker predicting DVT development.
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19
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Esiaba I, Angeles DM, Milford TAM, Salto LM, Payne KJ, Kidder MY, Boskovic DS. Platelet-Neutrophil Interactions Are Lower in Cord Blood of Premature Newborns. Neonatology 2019; 115:149-155. [PMID: 30481769 PMCID: PMC6559727 DOI: 10.1159/000494103] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Accepted: 09/27/2018] [Indexed: 01/20/2023]
Abstract
OBJECTIVE To quantify platelet-neutrophil interaction by flow cytometry, in newborn cord blood, as a function of gestational age. RATIONALE Little is known about platelet function markers in the newborn, and developmental variations in these markers are not well described. METHODS Cord blood samples were obtained from 64 newborns between 23 and 40 weeks' gestation. The neonates were grouped into three categories: preterm (< 34 weeks' gestation, n = 21), late preterm (34 to < 37 weeks' gestation, n = 22), and term (≥37 weeks' gestation, n = 21). We monitored the expression of P-selectin and the formation of platelet-neutrophil aggregates (PNAs) by flow cytometry while using adenosine 5'-diphosphate (ADP) or thrombin receptor-activating peptide (TRAP) as agonists. RESULTS PNAs were significantly lower in preterm compared to term neonates after TRAP or ADP stimulations (11.5 ± 5.2% vs. 19.9 ± 9.1%, p < 0.001, or 24.0 ± 10.1% vs. 39.1 ± 18.2%, p = 0.008, respectively). The expression of P-selectin also tended to be lower in preterm neonates, with significant positive correlations between P-selectin expression and PNA formation. CONCLUSIONS The potential formation of PNAs correlates with gestational age. This suggests that the development of functional competencies of platelets and neutrophils continues throughout gestation, progressively enabling interactions between them.
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Affiliation(s)
- Ijeoma Esiaba
- Department of Earth and Biological Sciences, School of Medicine, Loma Linda University, Loma Linda, California, USA
| | - Danilyn M Angeles
- Division of Physiology, Department of Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, California, USA
| | - Terry-Ann M Milford
- Division of Anatomy, Department of Pathology and Human Anatomy, School of Medicine, Loma Linda University, Loma Linda, California, USA
| | - Lorena M Salto
- Center for Health Disparities and Molecular Medicine, School of Medicine, Loma Linda University, Loma Linda, California, USA
| | - Kimberly J Payne
- Division of Anatomy, Department of Pathology and Human Anatomy, School of Medicine, Loma Linda University, Loma Linda, California, USA
| | - Melissa Y Kidder
- Department of Obstetrics and Gynecology, School of Medicine, Loma Linda University, Loma Linda, California, USA
| | - Danilo S Boskovic
- Department of Earth and Biological Sciences, School of Medicine, Loma Linda University, Loma Linda, California, USA, .,Division of Biochemistry, Department of Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, California, USA,
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20
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Rigg RA, Healy LD, Chu TT, Ngo ATP, Mitrugno A, Zilberman-Rudenko J, Aslan JE, Hinds MT, Vecchiarelli LD, Morgan TK, Gruber A, Temple KJ, Lindsley CW, Duvernay MT, Hamm HE, McCarty OJT. Protease-activated receptor 4 activity promotes platelet granule release and platelet-leukocyte interactions. Platelets 2018; 30:126-135. [PMID: 30560697 DOI: 10.1080/09537104.2017.1406076] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Human platelets express two protease-activated receptors (PARs), PAR1 (F2R) and PAR4 (F2RL3), which are activated by a number of serine proteases that are generated during pathological events and cause platelet activation. Recent interest has focused on PAR4 as a therapeutic target, given PAR4 seems to promote experimental thrombosis and procoagulant microparticle formation, without a broadly apparent role in hemostasis. However, it is not yet known whether PAR4 activity plays a role in platelet-leukocyte interactions, which are thought to contribute to both thrombosis and acute or chronic thrombo-inflammatory processes. We sought to determine whether PAR4 activity contributes to granule secretion from activated platelets and platelet-leukocyte interactions. We performed in vitro and ex vivo studies of platelet granule release and platelet-leukocyte interactions in the presence of PAR4 agonists including PAR4 activating peptide, thrombin, cathepsin G, and plasmin in combination with small-molecule PAR4 antagonists. Activation of human platelets with thrombin, cathepsin G, or plasmin potentiated platelet dense granule secretion that was specifically impaired by PAR4 inhibitors. Platelet-leukocyte interactions and platelet P-selectin exposure the following stimulation with PAR4 agonists were also impaired by activated PAR4 inhibition in either a purified system or in whole blood. These results indicate PAR4-specific promotion of platelet granule release and platelet-leukocyte aggregate formation and suggest that pharmacological control of PAR4 activity could potentially attenuate platelet granule release or platelet-leukocyte interaction-mediated pathological processes.
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Affiliation(s)
- Rachel A Rigg
- a Department of Biomedical Engineering , School of Medicine, Oregon Health & Science University , Portland , OR , USA
| | - Laura D Healy
- b Department of Cell, Developmental & Cancer Biology , School of Medicine, Oregon Health & Science University , Portland , OR , USA
| | - Tiffany T Chu
- a Department of Biomedical Engineering , School of Medicine, Oregon Health & Science University , Portland , OR , USA
| | - Anh T P Ngo
- a Department of Biomedical Engineering , School of Medicine, Oregon Health & Science University , Portland , OR , USA
| | - Annachiara Mitrugno
- a Department of Biomedical Engineering , School of Medicine, Oregon Health & Science University , Portland , OR , USA
| | - Jevgenia Zilberman-Rudenko
- a Department of Biomedical Engineering , School of Medicine, Oregon Health & Science University , Portland , OR , USA
| | - Joseph E Aslan
- d Department of Biochemistry and Molecular Biology , School of Medicine, Oregon Health & Science University , Portland , OR , USA.,e Knight Cardiovascular Institute , School of Medicine, Oregon Health & Science University , Portland , OR , USA
| | - Monica T Hinds
- a Department of Biomedical Engineering , School of Medicine, Oregon Health & Science University , Portland , OR , USA
| | - Lisa Dirling Vecchiarelli
- f Department of Pathology , School of Medicine, Oregon Health & Science University , Portland , OR , USA
| | - Terry K Morgan
- f Department of Pathology , School of Medicine, Oregon Health & Science University , Portland , OR , USA
| | - András Gruber
- a Department of Biomedical Engineering , School of Medicine, Oregon Health & Science University , Portland , OR , USA.,c Division of Hematology & Medical Oncology , School of Medicine, Oregon Health & Science University , Portland , OR , USA
| | - Kayla J Temple
- g Department of Pharmacology , Vanderbilt University School of Medicine , Nashville , TN , USA.,h Vanderbilt Center for Neuroscience Drug Discovery , Nashville , TN , USA
| | - Craig W Lindsley
- g Department of Pharmacology , Vanderbilt University School of Medicine , Nashville , TN , USA.,h Vanderbilt Center for Neuroscience Drug Discovery , Nashville , TN , USA
| | - Matthew T Duvernay
- g Department of Pharmacology , Vanderbilt University School of Medicine , Nashville , TN , USA
| | - Heidi E Hamm
- g Department of Pharmacology , Vanderbilt University School of Medicine , Nashville , TN , USA
| | - Owen J T McCarty
- a Department of Biomedical Engineering , School of Medicine, Oregon Health & Science University , Portland , OR , USA.,b Department of Cell, Developmental & Cancer Biology , School of Medicine, Oregon Health & Science University , Portland , OR , USA.,c Division of Hematology & Medical Oncology , School of Medicine, Oregon Health & Science University , Portland , OR , USA
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21
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Manfredi AA, Ramirez GA, Rovere-Querini P, Maugeri N. The Neutrophil's Choice: Phagocytose vs Make Neutrophil Extracellular Traps. Front Immunol 2018. [PMID: 29515586 PMCID: PMC5826238 DOI: 10.3389/fimmu.2018.00288] [Citation(s) in RCA: 150] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Neutrophils recognize particulate substrates of microbial or endogenous origin and react by sequestering the cargo via phagocytosis or by releasing neutrophil extracellular traps (NETs) outside the cell, thus modifying and alerting the environment and bystander leukocytes. The signals that determine the choice between phagocytosis and the generation of NETs are still poorly characterized. Neutrophils that had phagocytosed bulky particulate substrates, such as apoptotic cells and activated platelets, appear to be “poised” in an unresponsive state. Environmental conditions, the metabolic, adhesive and activation state of the phagocyte, and the size of and signals associated with the tethered phagocytic cargo influence the choice of the neutrophils, prompting either phagocytic clearance or the generation of NETs. The choice is dichotomic and apparently irreversible. Defects in phagocytosis may foster the intravascular generation of NETs, thus promoting vascular inflammation and morbidities associated with diseases characterized by defective phagocytic clearance, such as systemic lupus erythematosus. There is a strong potential for novel treatments based on new knowledge of the events determining the inflammatory and pro-thrombotic function of inflammatory leukocytes.
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Affiliation(s)
- Angelo A Manfredi
- Università Vita-Salute San Raffaele, Milano, Italy.,Division of Immunology, Transplantation and Infectious Diseases, IRCCS Ospedale San Raffaele, Milano, Italy
| | - Giuseppe A Ramirez
- Università Vita-Salute San Raffaele, Milano, Italy.,Division of Immunology, Transplantation and Infectious Diseases, IRCCS Ospedale San Raffaele, Milano, Italy
| | - Patrizia Rovere-Querini
- Università Vita-Salute San Raffaele, Milano, Italy.,Division of Immunology, Transplantation and Infectious Diseases, IRCCS Ospedale San Raffaele, Milano, Italy
| | - Norma Maugeri
- Università Vita-Salute San Raffaele, Milano, Italy.,Division of Immunology, Transplantation and Infectious Diseases, IRCCS Ospedale San Raffaele, Milano, Italy
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22
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Chang YW, Tseng CP, Lee CH, Hwang TL, Chen YL, Su MT, Chong KY, Lan YW, Wu CC, Chen KJ, Lu FH, Liao HR, Hsueh C, Hsieh PW. β-Nitrostyrene derivatives attenuate LPS-mediated acute lung injury via the inhibition of neutrophil-platelet interactions and NET release. Am J Physiol Lung Cell Mol Physiol 2018; 314:L654-L669. [PMID: 29351433 DOI: 10.1152/ajplung.00501.2016] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Acute lung injury (ALI) and the acute respiratory distress syndrome (ARDS) are high-mortality and life-threatening diseases that are associated with neutrophil activation and accumulation within lung tissue. Emerging evidence indicates that neutrophil-platelet aggregates (NPAs) at sites of injury increase acute inflammation and contribute to the development of ALI. Although numerous studies have increased our understanding of the pathophysiology of ALI, there is still a lack of innovative and useful treatments that reduce mortality, emphasizing that there is an urgent need for novel treatment strategies. In this study, a new series of small compounds of β-nitrostyrene derivatives (BNSDs) were synthesized, and their anti-inflammatory bioactivities on neutrophils and platelets were evaluated. The new small compound C7 modulates neutrophil function by inhibiting superoxide generation and elastase release. Compound C7 elicits protective effects on LPS-induced paw edema and acute lung injury via the inhibition of neutrophil accumulation, proinflammatory mediator release, platelet aggregation, myeloperoxidase activity, and neutrophil extracellular trap (NET) release. NET formation was identified as the bridge for the critical interactions between neutrophils and platelets by confocal microscopy and flow cytometry. This research provides new insights for elucidating the complicated regulation of neutrophils and platelets in ALI and sheds further light on future drug development strategies for ALI/ARDS and acute inflammatory diseases.
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Affiliation(s)
- Yao-Wen Chang
- Graduate Institute of Biomedical Sciences, College of Medicine, Chang Gung University , Taoyuan , Taiwan.,Department of Medical Biotechnology and Laboratory Science, College of Medicine, Chang Gung University , Taoyuan , Taiwan.,Graduate Institute of Natural Products, College of Medicine, and Chinese Herbal Medicine Research Team, Healthy Aging Research Center, Chang Gung University , Taoyuan , Taiwan
| | - Ching-Ping Tseng
- Graduate Institute of Biomedical Sciences, College of Medicine, Chang Gung University , Taoyuan , Taiwan.,Department of Medical Biotechnology and Laboratory Science, College of Medicine, Chang Gung University , Taoyuan , Taiwan.,Molecular Medicine Research Center, Chang Gung University , Taoyuan , Taiwan.,Department of Laboratory Medicine, Chang Gung Memorial Hospital , Taoyuan , Taiwan
| | - Chih-Hsun Lee
- Graduate Institute of Natural Products, College of Medicine, and Chinese Herbal Medicine Research Team, Healthy Aging Research Center, Chang Gung University , Taoyuan , Taiwan
| | - Tsong-Long Hwang
- Graduate Institute of Biomedical Sciences, College of Medicine, Chang Gung University , Taoyuan , Taiwan.,Graduate Institute of Natural Products, College of Medicine, and Chinese Herbal Medicine Research Team, Healthy Aging Research Center, Chang Gung University , Taoyuan , Taiwan.,Research Center for Industry of Human Ecology, Chang Gung University of Science and Technology , Taoyuan , Taiwan.,Department of Anesthesiology, Chang Gung Memorial Hospital , Linkou , Taiwan
| | - Yu-Li Chen
- Graduate Institute of Natural Products, College of Medicine, and Chinese Herbal Medicine Research Team, Healthy Aging Research Center, Chang Gung University , Taoyuan , Taiwan
| | - Mei-Tzu Su
- Graduate Institute and Department of Microbiology, College of Medicine, National Taiwan University , Taipei , Taiwan
| | - Kowit-Yu Chong
- Graduate Institute of Biomedical Sciences, College of Medicine, Chang Gung University , Taoyuan , Taiwan.,Department of Medical Biotechnology and Laboratory Science, College of Medicine, Chang Gung University , Taoyuan , Taiwan.,Department of Thoracic Medicine, Chang Gung Memorial Hospital at Linkou , Taoyuan , Taiwan
| | - Ying-Wei Lan
- Graduate Institute of Biomedical Sciences, College of Medicine, Chang Gung University , Taoyuan , Taiwan
| | - Chin-Chung Wu
- Graduate Institute of Natural Products, Kaohsiung Medical University , Kaohsiung , Taiwan
| | - Kung-Ju Chen
- Graduate Institute of Biomedical Sciences, College of Medicine, Chang Gung University , Taoyuan , Taiwan.,Graduate Institute of Natural Products, College of Medicine, and Chinese Herbal Medicine Research Team, Healthy Aging Research Center, Chang Gung University , Taoyuan , Taiwan
| | - Fen-Hua Lu
- Graduate Institute of Natural Products, College of Medicine, and Chinese Herbal Medicine Research Team, Healthy Aging Research Center, Chang Gung University , Taoyuan , Taiwan
| | - Hsiang-Ruei Liao
- Graduate Institute of Biomedical Sciences, College of Medicine, Chang Gung University , Taoyuan , Taiwan.,Graduate Institute of Natural Products, College of Medicine, and Chinese Herbal Medicine Research Team, Healthy Aging Research Center, Chang Gung University , Taoyuan , Taiwan.,Department of Anesthesiology, Chang Gung Memorial Hospital , Linkou , Taiwan
| | - Chuen Hsueh
- Graduate Institute of Biomedical Sciences, College of Medicine, Chang Gung University , Taoyuan , Taiwan.,Molecular Medicine Research Center, Chang Gung University , Taoyuan , Taiwan.,Department of Pathology, Chang Gung Memorial Hospital, Linkou, Taoyuan , Taiwan
| | - Pei-Wen Hsieh
- Graduate Institute of Biomedical Sciences, College of Medicine, Chang Gung University , Taoyuan , Taiwan.,Graduate Institute of Natural Products, College of Medicine, and Chinese Herbal Medicine Research Team, Healthy Aging Research Center, Chang Gung University , Taoyuan , Taiwan.,Research Center for Industry of Human Ecology, Chang Gung University of Science and Technology , Taoyuan , Taiwan.,Department of Anesthesiology, Chang Gung Memorial Hospital , Linkou , Taiwan
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23
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Nel JG, Durandt C, Theron AJ, Tintinger GR, Pool R, Richards GA, Mitchell TJ, Feldman C, Anderson R. Pneumolysin mediates heterotypic aggregation of neutrophils and platelets in vitro. J Infect 2017; 74:599-608. [PMID: 28267572 DOI: 10.1016/j.jinf.2017.02.010] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Revised: 02/17/2017] [Accepted: 02/24/2017] [Indexed: 10/20/2022]
Abstract
OBJECTIVES Platelets orchestrate the inflammatory activities of neutrophils, possibly contributing to pulmonary and myocardial damage during severe pneumococcal infection. This study tested the hypothesis that the pneumococcal toxin, pneumolysin (Ply), activates production of platelet-activating factor (PAF) and thromboxane A2 (TxA2) by neutrophils, these bioactive lipids being potential mediators of neutrophil:platelet (NP) networking. METHODS The effects of recombinant Ply (10-80 ng mL-1) on the production of PAF and TxA2 by isolated neutrophils were measured using ELISA procedures, and NP aggregation by flow cytometry. RESULTS Exposure of neutrophils to Ply induced production of PAF and, to a lesser extent, TxA2, achieving statistical significance at ≥20 ng mL-1 of the toxin. In the case of NP interactions, Ply promoted heterotypic aggregation which was dependent on upregulation of P-selectin (CD62P) and activation of protease-activated receptor 1 (PAR1), attaining statistical significance at ≥10 ng mL-1 of the toxin, but did not involve either PAF or TxA2. CONCLUSION Ply induces synthesis of PAF and TxA2, by human neutrophils, neither of which appears to contribute to the formation of NP heterotypic aggregates in vitro, a process which is seemingly dependent on CD62P and PAR1. These pro-inflammatory activities of Ply may contribute to the pathogenesis of pulmonary and myocardial injury during severe pneumococcal infection.
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Affiliation(s)
- Jan G Nel
- Department of Haematology, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa; Tshwane Academic Division of the National Health Laboratory Service, Pretoria, South Africa.
| | - Chrisna Durandt
- Institute for Cellular and Molecular Medicine, South African Medical Research Council Unit for Stem Cell Research, Department of Immunology, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
| | - Annette J Theron
- Department of Immunology, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
| | - Gregory R Tintinger
- Department of Internal Medicine, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
| | - Roger Pool
- Department of Haematology, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa; Tshwane Academic Division of the National Health Laboratory Service, Pretoria, South Africa
| | - Guy A Richards
- Department of Critical Care, Charlotte Maxeke Johannesburg Academic Hospital, Johannesburg, South Africa; Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Timothy J Mitchell
- Institute of Microbiology and Infection, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK
| | - Charles Feldman
- Division of Pulmonology, Department of Internal Medicine, Charlotte Maxeke Johannesburg Academic Hospital, Johannesburg, South Africa
| | - Ronald Anderson
- Department of Immunology, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa; Institute for Cellular and Molecular Medicine, South African Medical Research Council Unit for Stem Cell Research, Department of Immunology, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
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Kim SJ, Jenne CN. Role of platelets in neutrophil extracellular trap (NET) production and tissue injury. Semin Immunol 2016; 28:546-554. [PMID: 27876233 DOI: 10.1016/j.smim.2016.10.013] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Revised: 10/07/2016] [Accepted: 10/12/2016] [Indexed: 12/13/2022]
Abstract
In addition to their well-known role as the cellular mediator of thrombosis, numerous studies have identified key roles for platelets during various disease processes. Importantly, platelets play a critical role in the host immune response, directly interacting with, and eliminating pathogens, from the blood stream. In addition to pathogen clearance, platelets also contribute to leukocyte recruitment at sites of infection and inflammation, and modulate leukocyte activity. Platelet interaction with activated neutrophils is a potent inducer of neutrophil extracellular trap (NET). NETs consist of a diffuse, sticky web of extracellular DNA, nuclear and granular proteins, and serve to ensnare and kill pathogens. In addition to catching pathogens, the cytotoxic molecules and proteases on NETs have the potential to inflict significant tissue damage. Additionally, NET components have been suggested to be key activators of infection-induced coagulopathy. These critical roles, at the interface between hemostasis and immunity, highlight the need for balance in the platelet response; too little platelet activity results in bleeding and immune deficit, too much leads to tissue pathogenesis. In this review, we highlight recent advances in our understanding of the role platelets play in inflammation, the link between platelets and NETs and the role platelets play in disease pathogenesis.
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Affiliation(s)
- Seok-Joo Kim
- Department of Microbiology, Immunology and Infectious Diseases, University of Calgary, 3330 Hospital Drive NW, T2N 4N1, Calgary, AB, Canada
| | - Craig N Jenne
- Department of Microbiology, Immunology and Infectious Diseases, University of Calgary, 3330 Hospital Drive NW, T2N 4N1, Calgary, AB, Canada.
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Kazzaz NM, Sule G, Knight JS. Intercellular Interactions as Regulators of NETosis. Front Immunol 2016; 7:453. [PMID: 27895638 PMCID: PMC5107827 DOI: 10.3389/fimmu.2016.00453] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Accepted: 10/11/2016] [Indexed: 12/12/2022] Open
Abstract
Neutrophil extracellular traps (NETs) are chromatin-derived webs extruded from neutrophils in response to either infection or sterile stimulation with chemicals, cytokines, or microbial products. The vast majority of studies have characterized NET release (also called NETosis) in pure neutrophil cultures in vitro. The situation is surely more complex in vivo as neutrophils constantly sample not only pathogens and soluble mediators but also signals from cellular partners, including platelets and endothelial cells. This complexity is beginning to be explored by studies utilizing in vitro co-culture, as well as animal models of sepsis, infective endocarditis, lung injury, and thrombosis. Indeed, various selectins, integrins, and surface glycoproteins have been implicated in platelet–neutrophil interactions that promote NETosis, albeit with disparate results across studies. NETosis can also clearly be regulated by soluble mediators derived from platelets, such as eicosanoids, chemokines, and alarmins. Beyond platelets, the role of the endothelium in modulating NETosis is being increasingly revealed, with adhesive interactions likely priming neutrophils toward NETosis. The fact that the same selectins and surface glycoproteins may be expressed by both platelets and endothelial cells complicates the interpretation of in vivo data. In summary, we suggest in this review that the engagement of neutrophils with activated cellular partners provides an important in vivo signal or “hit” toward NETosis. Studies should, therefore, increasingly consider the triumvirate of neutrophils, platelets, and the endothelium when exploring NETosis, especially in disease states.
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Affiliation(s)
- Nayef M Kazzaz
- Department of Internal Medicine, Division of Rheumatology, University of Michigan , Ann Arbor, MI , USA
| | - Gautam Sule
- Department of Internal Medicine, Division of Rheumatology, University of Michigan , Ann Arbor, MI , USA
| | - Jason S Knight
- Department of Internal Medicine, Division of Rheumatology, University of Michigan , Ann Arbor, MI , USA
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Gerrits AJ, Frelinger AL, Michelson AD. Whole Blood Analysis of Leukocyte-Platelet Aggregates. CURRENT PROTOCOLS IN CYTOMETRY 2016; 78:6.15.1-6.15.10. [PMID: 27723089 DOI: 10.1002/cpcy.8] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
In inflammatory and thrombotic syndromes, platelets aggregate with circulating leukocytes, especially monocytes and neutrophils. This leukocyte-platelet aggregate formation is initiated primarily through platelet surface expression of P-selectin (CD62P), following activation-dependent degranulation of α-granules, binding to its constitutively expressed counter-receptor, P-selectin glycoprotein ligand 1 (PSGL-1), on leukocytes. Monocyte-platelet aggregates are a more sensitive marker of platelet activation than platelet surface P-selectin. Detection of leukocyte-platelet aggregates is relatively simple by whole-blood flow cytometry. Light scatter and at least one leukocyte-specific antibody are used to gate the desired population, and the presence of associated platelets is detected by immunostaining for abundant platelet-specific markers. © 2016 by John Wiley & Sons, Inc.
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Affiliation(s)
- Anja J Gerrits
- Center for Platelet Research Studies, Division of Hematology/Oncology, Boston Children's Hospital, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts
| | - Andrew L Frelinger
- Center for Platelet Research Studies, Division of Hematology/Oncology, Boston Children's Hospital, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts
| | - Alan D Michelson
- Center for Platelet Research Studies, Division of Hematology/Oncology, Boston Children's Hospital, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts
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Pneumolysin Mediates Platelet Activation In Vitro. Lung 2016; 194:589-93. [PMID: 27192991 DOI: 10.1007/s00408-016-9900-5] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2016] [Accepted: 05/09/2016] [Indexed: 12/11/2022]
Abstract
This study has explored the role of the pneumococcal toxin, pneumolysin (Ply), in activating human platelets. Following exposure to Ply (10-80 ng/ml), platelet activation and cytosolic Ca(2+) concentrations were measured flow cytometrically according to the level of expression of CD62P (P-selectin) and spectrofluorimetrically, respectively. Exposure to Ply resulted in marked upregulation of expression of platelet CD62P, achieving statistical significance at concentrations of 40 ng/ml and higher (P < 0.05), in the setting of increased influx of Ca(2+). These potentially pro-thrombotic actions of Ply were attenuated by depletion of Ca(2+) from the extracellular medium or by exposure of the cells to a pneumolysoid devoid of pore-forming activity. These findings are consistent with a mechanism of Ply-mediated platelet activation involving sub-lytic pore formation, Ca(2+) influx, and mobilization of CD62P-expressing α-granules, which, if operative in vivo, may contribute to the pathogenesis of associated acute lung and myocardial injury during invasive pneumococcal disease.
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