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Kristensen SR, Nybo J. A sensitive tissue factor activity assay determined by an optimized thrombin generation method. PLoS One 2023; 18:e0288918. [PMID: 37467256 DOI: 10.1371/journal.pone.0288918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Accepted: 07/06/2023] [Indexed: 07/21/2023] Open
Abstract
BACKGROUND Tissue factor (TF) is the principal activator of the coagulation system, but an increased concentration in the blood in cancer and inflammatory diseases has been suggested to play a role increasing the risk of venous thromboembolism. However, measurement of the TF concentration is difficult, and quantitation of activity is the most valid estimation. The objective of this study was to establish a sensitive method to measure TF activity based on thrombin generation. METHODS The assay is based on thrombin generation (TG) measured on the Calibrated Automated Thrombogram (CAT). Various low concentrations of TF were prepared from reagents containing 1 pM TF and 4 μM phospholipid (PPL), and no TF and 4 μM PPL, and a calibration curve was produced from Lagtime vs TF concentration. TF in blood samples was measured after isolation and resuspension of extracellular vesicles (EVs) in a standard plasma from which EVs had been removed. The same standard plasma was used for the calibrators. RESULTS Contact activation of the coagulation system was avoided using CTI plasma samples in Monovette tubes. EVs contain procoagulant phospholipids but addition of PPL only reduced lagtime slightly at very low concentrations of TF resulting in overestimation to a lesser extent at 10 fM but no interference at 30 fM or higher. Addition of EVs to the TG analysis induced a small unspecific TF-independent activity (i.e., an activity not inhibited by antibodies against TF) which also may result in a smaller error in estimation of TF activity at very low levels but the effect was negligible at higher concentrations. It was possible to measure TF activity in healthy controls which was found to be 1-6 fM (EVs were concentrated, i.e. solubilized in a lower volume than the original volume plasma). Coefficient of variation (CV) was below 20% at the low level, and below 10% at a level around 100 fM TF. However, the step with isolation of EVs have a higher inherent CV. CONCLUSION A sensitive and rather precise one-stage TG-based method to measure TF activity has been established.
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Affiliation(s)
- Søren Risom Kristensen
- Department of Clinical Biochemistry, Aalborg University Hospital, Aalborg, Denmark
- Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
| | - Jette Nybo
- Department of Clinical Biochemistry, Aalborg University Hospital, Aalborg, Denmark
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Sharma SB, Melvin WJ, Audu CO, Bame M, Rhoads N, Wu W, Kanthi Y, Knight JS, Adili R, Holinstat MA, Wakefield TW, Henke PK, Moore BB, Gallagher KA, Obi AT. The histone methyltransferase MLL1/KMT2A in monocytes drives coronavirus-associated coagulopathy and inflammation. Blood 2023; 141:725-742. [PMID: 36493338 PMCID: PMC9743412 DOI: 10.1182/blood.2022015917] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 11/15/2022] [Accepted: 11/15/2022] [Indexed: 12/13/2022] Open
Abstract
Coronavirus-associated coagulopathy (CAC) is a morbid and lethal sequela of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. CAC results from a perturbed balance between coagulation and fibrinolysis and occurs in conjunction with exaggerated activation of monocytes/macrophages (MO/Mφs), and the mechanisms that collectively govern this phenotype seen in CAC remain unclear. Here, using experimental models that use the murine betacoronavirus MHVA59, a well-established model of SARS-CoV-2 infection, we identify that the histone methyltransferase mixed lineage leukemia 1 (MLL1/KMT2A) is an important regulator of MO/Mφ expression of procoagulant and profibrinolytic factors such as tissue factor (F3; TF), urokinase (PLAU), and urokinase receptor (PLAUR) (herein, "coagulopathy-related factors") in noninfected and infected cells. We show that MLL1 concurrently promotes the expression of the proinflammatory cytokines while suppressing the expression of interferon alfa (IFN-α), a well-known inducer of TF and PLAUR. Using in vitro models, we identify MLL1-dependent NF-κB/RelA-mediated transcription of these coagulation-related factors and identify a context-dependent, MLL1-independent role for RelA in the expression of these factors in vivo. As functional correlates for these findings, we demonstrate that the inflammatory, procoagulant, and profibrinolytic phenotypes seen in vivo after coronavirus infection were MLL1-dependent despite blunted Ifna induction in MO/Mφs. Finally, in an analysis of SARS-CoV-2 positive human samples, we identify differential upregulation of MLL1 and coagulopathy-related factor expression and activity in CD14+ MO/Mφs relative to noninfected and healthy controls. We also observed elevated plasma PLAU and TF activity in COVID-positive samples. Collectively, these findings highlight an important role for MO/Mφ MLL1 in promoting CAC and inflammation.
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Affiliation(s)
- Sriganesh B. Sharma
- Section of General Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI
| | - William J. Melvin
- Section of General Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI
| | - Christopher O. Audu
- Section of General Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI
- Section of Vascular Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI
| | - Monica Bame
- Department of Microbiology and Immunology, University of Michigan, Ann Arbor, MI
| | - Nicole Rhoads
- Department of Pharmacology, University of Michigan, Ann Arbor, MI
| | - Weisheng Wu
- Bioinformatics Core, Biomedical Research Core Facilities, University of Michigan, Ann Arbor, MI
| | - Yogendra Kanthi
- Laboratory of Vascular Thrombosis & Inflammation, National Heart, Lung, and Blood Institute, Bethesda, MD
| | - Jason S. Knight
- Division of Rheumatology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI
| | - Reheman Adili
- Department of Pharmacology, University of Michigan, Ann Arbor, MI
| | - Michael A. Holinstat
- Section of Vascular Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI
- Department of Pharmacology, University of Michigan, Ann Arbor, MI
| | - Thomas W. Wakefield
- Section of General Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI
- Section of Vascular Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI
| | - Peter K. Henke
- Section of General Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI
- Section of Vascular Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI
| | - Bethany B. Moore
- Department of Microbiology and Immunology, University of Michigan, Ann Arbor, MI
| | - Katherine A. Gallagher
- Section of General Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI
- Section of Vascular Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI
- Department of Microbiology and Immunology, University of Michigan, Ann Arbor, MI
| | - Andrea T. Obi
- Section of General Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI
- Section of Vascular Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI
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Mai S, Inkielewicz-Stepniak I. Pancreatic Cancer and Platelets Crosstalk: A Potential Biomarker and Target. Front Cell Dev Biol 2021; 9:749689. [PMID: 34858977 PMCID: PMC8631477 DOI: 10.3389/fcell.2021.749689] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Accepted: 10/04/2021] [Indexed: 12/12/2022] Open
Abstract
Platelets have been recognized as key players in hemostasis, thrombosis, and cancer. Preclinical and clinical researches evidenced that tumorigenesis and metastasis can be promoted by platelets through a wide variety of crosstalk between cancer cells and platelets. Pancreatic cancer is a devastating disease with high morbidity and mortality worldwide. Although the relationship between pancreatic cancer and platelets in clinical diagnosis is described, the interplay between pancreatic cancer and platelets, the underlying pathological mechanism and pathways remain a matter of intensive study. This review summaries recent researches in connections between platelets and pancreatic cancer. The existing data showed different underlying mechanisms were involved in their complex crosstalk. Typically, pancreatic tumor accelerates platelet aggregation which forms thrombosis. Furthermore, extracellular vesicles released by platelets promote communication in a neoplastic microenvironment and illustrate how these interactions drive disease progression. We also discuss the advantages of novel model organoids in pancreatic cancer research. A more in-depth understanding of tumor and platelets crosstalk which is based on organoids and translational therapies may provide potential diagnostic and therapeutic strategies for pancreatic cancer progression.
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Affiliation(s)
- Shaoshan Mai
- Department of Pharmaceutical Pathophysiology, Faculty of Pharmacy, Medical University of Gdańsk, Gdańsk, Poland
| | - Iwona Inkielewicz-Stepniak
- Department of Pharmaceutical Pathophysiology, Faculty of Pharmacy, Medical University of Gdańsk, Gdańsk, Poland
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Rognes IN, Hellum M, Ottestad W, Bache KG, Eken T, Henriksson CE. Extracellular vesicle-associated procoagulant activity is highest the first 3 hours after trauma and thereafter declines substantially: A prospective observational pilot study. J Trauma Acute Care Surg 2021; 91:681-691. [PMID: 34225342 PMCID: PMC8460081 DOI: 10.1097/ta.0000000000003333] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Revised: 06/07/2021] [Accepted: 06/24/2021] [Indexed: 11/25/2022]
Abstract
BACKGROUND Trauma patients have high concentrations of circulating extracellular vesicles (EVs) following injury, but the functional role of EVs in this setting is only partly deciphered. We aimed to describe in detail EV-associated procoagulant activity in individual trauma patients during the first 12 hours after injury to explore their putative function and relate findings to relevant trauma characteristics and outcome. METHODS In a prospective observational study of 33 convenience recruited trauma patients, citrated plasma samples were obtained at trauma center admission and 2, 4, 6, and 8 hours thereafter. We measured thrombin generation from isolated EVs and the procoagulant activity of phosphatidylserine (PS)-exposing EVs. Correlation and multivariable linear regression analyses were used to explore associations between EV-associated procoagulant activity and trauma characteristics as well as outcome measures. RESULTS EV-associated procoagulant activity was highest in the first 3 hours after injury. EV-associated thrombin generation normalized within 7 to 12 hours of injury, whereas the procoagulant activity of PS-exposing EVs declined to a level right above that of healthy volunteers. Increased EV-associated procoagulant activity at admission was associated with higher New Injury Severity Score, lower admission base excess, higher admission international normalized ratio, prolonged admission activated partial thromboplastin time, higher Sequential Organ Failure Assessment score at day 0, and fewer ventilator-free days. CONCLUSION Our data suggest that EVs have a transient hypercoagulable function and may play a role in the early phase of hemostasis after injury. The role of EVs in trauma-induced coagulopathy and posttraumatic thrombosis should be studied bearing in mind this novel temporal pattern. LEVEL OF EVIDENCE Prognostic/epidemiologic, level V.
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Mattila N, Hisada Y, Przybyla B, Posma J, Jouppila A, Haglund C, Seppänen H, Mackman N, Lassila R. Levels of the cancer biomarker CA 19-9 are associated with thrombin generation in plasma from treatment-naïve pancreatic cancer patients. Thromb Res 2020; 199:21-31. [PMID: 33385797 DOI: 10.1016/j.thromres.2020.12.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 12/08/2020] [Accepted: 12/18/2020] [Indexed: 11/28/2022]
Abstract
BACKGROUND Pancreatic ductal adenocarcinoma (PDAC) is associated with a hypercoagulable state and high mortality. Increases in the plasma levels of tumor marker carbohydrate antigen (CA) 19-9 are used in diagnosis and follow-up but have also been reported to precede venous thromboembolism (VTE). AIMS We examined the association between CA 19-9 and thrombin generation (TG) in plasma from PDAC patients, as well as their association with coagulation biomarkers prior to pancreatic surgery. In addition, we determined the effect of commercial sources of CA 19-9 on TG. METHODS We collected plasma from 58 treatment-naïve PDAC patients without any signs of VTE. We measured levels of CA 19-9, FVIII, fibrinogen, D-dimer, antithrombin and extracellular vesicle (EV) tissue factor (TF) activity and TG using a Calibrated Automated Thrombogram (CAT). The effect of different commercial sources of CA 19-9 on TG in Standard Human Plasma (SHP) was also studied. RESULTS Patient plasma samples were divided into 4 preoperative groups based on the level of CA 19-9: none < 2, low = 3-200, high = 201-1000, and very high > 1000 U/mL. CA 19-9 levels were associated with several of the TG parameters, including endogenous thrombin potential, peak, and time to peak. CA 19-9 did not associate with any of the coagulation biomarkers. Spiking of SHP with CA 19-9 increased TG but this was decreased by an anti-TF antibody. CONCLUSIONS CA 19-9 was associated with TG in patients prior to any pancreatic cancer treatments or signs of VTE. Some commercial sources of CA 19-9 enhanced TG in SHP seemingly due to contaminating TF.
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Affiliation(s)
- N Mattila
- Department of Surgery, Helsinki University Hospital, Helsinki, Finland; Department of Hematology, Coagulation Disorders Unit, Comprehensive Cancer Center, Helsinki University Hospital, Helsinki, Finland
| | - Y Hisada
- UNC Blood Research Center, Division of Hematology/Oncology, Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - B Przybyla
- Department of Hematology, Coagulation Disorders Unit, Comprehensive Cancer Center, Helsinki University Hospital, Helsinki, Finland
| | - J Posma
- Laboratory for Clinical Thrombosis and Hemostasis, Department of Internal Medicine, Cardiovascular Research Institute Maastricht, Maastricht University Medical Center, the Netherlands; Department of Biochemistry, Cardiovascular Research Institute Maastricht, Maastricht University Medical Center, the Netherlands
| | - A Jouppila
- Department of Hematology, Coagulation Disorders Unit, Comprehensive Cancer Center, Helsinki University Hospital, Helsinki, Finland; Clinical Research Institute HUCH, Helsinki, Finland; Research Programs Unit in Systems Oncology, University of Helsinki, Helsinki, Finland
| | - C Haglund
- Department of Surgery, Helsinki University Hospital, Helsinki, Finland; Translational Cancer Medicine, University of Helsinki, Helsinki, Finland
| | - H Seppänen
- Department of Surgery, Helsinki University Hospital, Helsinki, Finland; Translational Cancer Medicine, University of Helsinki, Helsinki, Finland
| | - N Mackman
- UNC Blood Research Center, Division of Hematology/Oncology, Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - R Lassila
- Department of Hematology, Coagulation Disorders Unit, Comprehensive Cancer Center, Helsinki University Hospital, Helsinki, Finland; Research Programs Unit in Systems Oncology, University of Helsinki, Helsinki, Finland; HUSLAB Laboratory Services, Clinical Chemistry, Helsinki, Finland.
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Lundström A, Änggårdh-Rooth E, Mobarrez F, Thålin C, Gigante B, Laska AC, Wallén H. High Thrombin Generation after Acute Ischemic Stroke or Transient Ischemic Attack Is Associated with a Reduced Risk of Recurrence: An Observational Cohort Study. Thromb Haemost 2020; 121:584-593. [PMID: 33314013 DOI: 10.1055/s-0040-1721146] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Thrombin is increasingly recognized to be of importance for cardiovascular disease. The aim of this study was to investigate the prognostic value of thrombin generation variables in a cohort of patients with acute ischemic stroke (AIS) or transient ischemic attack (TIA). Thrombin generation potential measured by calibrated automated thrombogram (CAT) and prothrombin fragment F1 + 2 was determined in the acute and convalescent phases for a cohort of 190 patients with AIS/TIA. Microvesicle (MV)-induced thrombin generation potential was determined for a subset of patients using modified CAT. Primary outcome was a composite of fatal and nonfatal AIS or myocardial infarction as documented in Swedish registers during a total follow-up of 986 patient-years. Hazard ratios (HRs) were calculated using Cox regression based on variable median split. Peak thrombin and endogenous thrombin potential (ETP) above median in the acute phase were associated with a reduced risk of primary outcome after adjustment for cardiovascular risk factors, HR: 0.50 (0.27-0.92), p = 0.026 and HR: 0.53 (0.28-0.99), p = 0.048, respectively. F1 + 2 was lower in patients than in healthy controls but not associated with outcome. MV-induced peak thrombin above median in the acute phase was associated with recurrent AIS, unadjusted HR: 2.65 (1.03-6.44), p = 0.044. Contrary to expectation, high thrombin generation potential is associated with a reduced risk of recurrent ischemic event in patients with AIS/TIA. Low ETP/peak thrombin combined with high MV-induced peak thrombin can potentially identify patients at high risk of recurrence.
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Affiliation(s)
- Annika Lundström
- Division of Neurology, Department of Clinical Sciences, Danderyd University Hospital, Karolinska Institutet, Stockholm, Sweden
| | - Elisabeth Änggårdh-Rooth
- Division of Neurology, Department of Clinical Sciences, Danderyd University Hospital, Karolinska Institutet, Stockholm, Sweden
| | | | - Charlotte Thålin
- Division of Internal Medicine, Department of Clinical Sciences, Danderyd University Hospital, Karolinska Institutet, Stockholm, Sweden
| | - Bruna Gigante
- Division of Cardiovascular Medicine, Department of Clinical Sciences, Danderyd University Hospital, Karolinska Institutet, Stockholm, Sweden.,Division of Cardiovascular Medicine, Department of Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Ann Charlotte Laska
- Division of Neurology, Department of Clinical Sciences, Danderyd University Hospital, Karolinska Institutet, Stockholm, Sweden
| | - Håkan Wallén
- Division of Cardiovascular Medicine, Department of Clinical Sciences, Danderyd University Hospital, Karolinska Institutet, Stockholm, Sweden
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Zhang J, Zhu Y, Wu Y, Yan QG, Peng XY, Xiang XM, Xue MY, Li QH, Liu LM, Li T. Synergistic effects of EMPs and PMPs on pulmonary vascular leakage and lung injury after ischemia/reperfusion. Cell Commun Signal 2020; 18:184. [PMID: 33225929 PMCID: PMC7682096 DOI: 10.1186/s12964-020-00672-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Accepted: 10/13/2020] [Indexed: 01/19/2023] Open
Abstract
Background Vascular leakage is an important pathophysiological process of critical conditions such as shock and ischemia–reperfusion (I/R)-induced lung injury. Microparticles (MPs), including endothelial cell-derived microparticles (EMPs), platelet-derived microparticles (PMPs) and leukocyte-derived microparticles (LMPs), have been shown to participate in many diseases. Whether and which of these MPs take part in pulmonary vascular leakage and lung injury after I/R and whether these MPs have synergistic effect and the underlying mechanism are not known. Methods Using hemorrhage/transfusion (Hemo/Trans) and aorta abdominalis occlusion-induced I/R rat models, the role of EMPs, PMPs and LMPs and the mechanisms in pulmonary vascular leakage and lung injury were observed. Results The concentrations of EMPs, PMPs and LMPs were significantly increased after I/R. Intravenous administration of EMPs and PMPs but not LMPs induced pulmonary vascular leakage and lung injury. Furthermore, EMPs induced pulmonary sequestration of platelets and promoted more PMPs production, and played a synergistic effect on pulmonary vascular leakage. MiR-1, miR-155 and miR-542 in EMPs, and miR-126 and miR-29 in PMPs, were significantly increased after hypoxia/reoxygenation (H/R). Of which, inhibition of miR-155 in EMPs and miR-126 in PMPs alleviated the detrimental effects of EMPs and PMPs on vascular barrier function and lung injury. Overexpression of miR-155 in EMPs down-regulated the expression of tight junction related proteins such as ZO-1 and claudin-5, while overexpression of miR-126 up-regulated the expression of caveolin-1 (Cav-1), the trans-cellular transportation related protein such as caveolin-1 (Cav-1). Inhibiting EMPs and PMPs production with blebbistatin (BLE) and amitriptyline (AMI) alleviated I/R induced pulmonary vascular leakage and lung injury. Conclusions EMPs and PMPs contribute to the pulmonary vascular leakage and lung injury after I/R. EMPs mediate pulmonary sequestration of platelets, producing more PMPs to play synergistic effect. Mechanically, EMPs carrying miR-155 that down-regulates ZO-1 and claudin-5 and PMPs carrying miR-126 that up-regulates Cav-1, synergistically mediate pulmonary vascular leakage and lung injury after I/R. Graphic abstract ![]()
Video Abstract
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Affiliation(s)
- Jie Zhang
- State Key Laboratory of Trauma, Burns and Combined Injury, Shock and Transfusion Department of Research Institute of Surgery, Daping Hospital, Third Military Medical University, Army Medical University, Daping, Chongqing, 400042, People's Republic of China
| | - Yu Zhu
- State Key Laboratory of Trauma, Burns and Combined Injury, Shock and Transfusion Department of Research Institute of Surgery, Daping Hospital, Third Military Medical University, Army Medical University, Daping, Chongqing, 400042, People's Republic of China
| | - Yue Wu
- State Key Laboratory of Trauma, Burns and Combined Injury, Shock and Transfusion Department of Research Institute of Surgery, Daping Hospital, Third Military Medical University, Army Medical University, Daping, Chongqing, 400042, People's Republic of China
| | - Qing-Guang Yan
- State Key Laboratory of Trauma, Burns and Combined Injury, Shock and Transfusion Department of Research Institute of Surgery, Daping Hospital, Third Military Medical University, Army Medical University, Daping, Chongqing, 400042, People's Republic of China
| | - Xiao-Yong Peng
- State Key Laboratory of Trauma, Burns and Combined Injury, Shock and Transfusion Department of Research Institute of Surgery, Daping Hospital, Third Military Medical University, Army Medical University, Daping, Chongqing, 400042, People's Republic of China
| | - Xin-Ming Xiang
- State Key Laboratory of Trauma, Burns and Combined Injury, Shock and Transfusion Department of Research Institute of Surgery, Daping Hospital, Third Military Medical University, Army Medical University, Daping, Chongqing, 400042, People's Republic of China
| | - Ming-Ying Xue
- State Key Laboratory of Trauma, Burns and Combined Injury, Shock and Transfusion Department of Research Institute of Surgery, Daping Hospital, Third Military Medical University, Army Medical University, Daping, Chongqing, 400042, People's Republic of China
| | - Qing-Hui Li
- State Key Laboratory of Trauma, Burns and Combined Injury, Shock and Transfusion Department of Research Institute of Surgery, Daping Hospital, Third Military Medical University, Army Medical University, Daping, Chongqing, 400042, People's Republic of China
| | - Liang-Ming Liu
- State Key Laboratory of Trauma, Burns and Combined Injury, Shock and Transfusion Department of Research Institute of Surgery, Daping Hospital, Third Military Medical University, Army Medical University, Daping, Chongqing, 400042, People's Republic of China.
| | - Tao Li
- State Key Laboratory of Trauma, Burns and Combined Injury, Shock and Transfusion Department of Research Institute of Surgery, Daping Hospital, Third Military Medical University, Army Medical University, Daping, Chongqing, 400042, People's Republic of China.
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Franco C, Lacroix R, Vallier L, Judicone C, Bouriche T, Laroumagne S, Astoul P, Dignat-George F, Poncelet P. A new hybrid immunocapture bioassay with improved reproducibility to measure tissue factor-dependent procoagulant activity of microvesicles from body fluids. Thromb Res 2020; 196:414-424. [PMID: 33038585 DOI: 10.1016/j.thromres.2020.09.020] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 08/25/2020] [Accepted: 09/15/2020] [Indexed: 02/05/2023]
Abstract
BACKGROUND The procoagulant activity of tissue factor-bearing microvesicles (MV-TF) has been associated with the risk of developing venous thrombosis in cancer patients. However, MV-TF assays are limited either by i) a lack of specificity, ii) a low sensitivity, or iii) a lack of repeatability when high-speed centrifugation (HS-C) is used to isolate MV. Therefore, our objective was to develop a new hybrid "capture-bioassay" with improved reproducibility combining MV immunocapture from biofluids and measurement of their TF activity. MATERIALS AND METHODS Factor Xa generation and flow cytometry assays were used to evaluate IMS beads performance, and to select the most effective capture antibodies. The analytical performance between IMS-based and HS-C-based assays was evaluated with various models of plasma samples (from LPS-activated blood, spiked with tumoral MV, or with saliva MV) and different biofluids (buffer, plasma, saliva, and pleural fluid). RESULTS Combining both CD29 and CD59 antibodies on IMS beads was as efficient as HS-C to isolate plasmatic PS+ MV. The IMS-based strategy gave significantly higher levels of MV-TF activity than HS-C in tumor MV spiked buffer, and both pleural fluids and saliva samples. Surprisingly, lower TF values were measured in plasma due to TFPI (TF pathway inhibitor) non-specifically adsorbed onto beads. This was overcome by adding a TFPI-blocking antibody. After optimization, the new IMS-based assay significantly improved reproducibility of MV-TF bioassay versus the HS-C-based assay without losing specificity and sensitivity. In addition, this approach could identify the cellular origin of MV-TF in various biological fluids. CONCLUSION Compared to HS-C, the IMS-based measurement of MV-TF activity in body fluids improves reproducibility and makes the assay compatible with clinical practice. It can facilitate future automation.
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Affiliation(s)
- Corentin Franco
- Aix Marseille Univ, INSERM, INRAE, C2VN, Marseille, France; BioCytex, Research and Technology Department, Marseille, France.
| | - Romaric Lacroix
- Aix Marseille Univ, INSERM, INRAE, C2VN, Marseille, France; Aix Marseille Univ, APHM, CHU La Conception, Department of Hematology and Vascular Biology, Marseille, France.
| | - Loris Vallier
- Aix Marseille Univ, INSERM, INRAE, C2VN, Marseille, France; Aix Marseille Univ, APHM, CHU La Conception, Department of Hematology and Vascular Biology, Marseille, France
| | - Coralie Judicone
- BioCytex, Research and Technology Department, Marseille, France.
| | - Tarik Bouriche
- BioCytex, Research and Technology Department, Marseille, France.
| | - Sophie Laroumagne
- Aix Marseille Univ, APHM, Hôpital Nord, Division of Thoracic Oncology, Pleural Diseases, and Interventional Pulmonology, Marseille, France.
| | - Philippe Astoul
- Aix Marseille Univ, APHM, Hôpital Nord, Division of Thoracic Oncology, Pleural Diseases, and Interventional Pulmonology, Marseille, France.
| | - Francoise Dignat-George
- Aix Marseille Univ, INSERM, INRAE, C2VN, Marseille, France; Aix Marseille Univ, APHM, CHU La Conception, Department of Hematology and Vascular Biology, Marseille, France.
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9
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The relationship between pancreatic cancer and hypercoagulability: a comprehensive review on epidemiological and biological issues. Br J Cancer 2019; 121:359-371. [PMID: 31327867 PMCID: PMC6738049 DOI: 10.1038/s41416-019-0510-x] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Revised: 05/13/2019] [Accepted: 05/28/2019] [Indexed: 12/15/2022] Open
Abstract
It has long been recognised that pancreatic cancer induces a hypercoagulable state that may lead to clinically apparent thrombosis. Although the relationship between pancreatic cancer and hypercoagulability is well described, the underlying pathological mechanism(s) and the interplay between these pathways remain a matter of intensive study. This review summarises existing data on epidemiology and pathogenesis of thrombotic complications in pancreatic cancer with a particular emphasis on novel pathophysiological pathways. Pancreatic cancer is characterised by high tumoural expression of tissue factor, activation of leukocytes with the release of neutrophil extracellular traps, the dissemination of tumour-derived microvesicles that promote hypercoagulability and increased platelet activation. Furthermore, other coagulation pathways probably contribute to these processes, such as those that involve heparanase, podoplanin and hypofibrinolysis. In the era in which heparin and its derivatives—the currently recommended therapy for cancer-associated thrombosis—might be superseded by direct oral anticoagulants, novel data from mouse models of cancer-associated thrombosis suggest the possibility of future personalised therapeutic approaches. In this dynamic era for cancer-associated thrombosis, the discovery of novel prothrombotic and proinflammatory mechanisms will potentially uncover pharmacological targets to prevent and treat thrombosis without adversely affecting haemostasis.
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Garabet L, Ghanima W, Hellum M, Sandset PM, Bussel JB, Tran H, Henriksson CE. Increased microvesicle-associated thrombin generation in patients with immune thrombocytopenia after initiation of thrombopoietin receptor agonists. Platelets 2019; 31:322-328. [PMID: 31280643 DOI: 10.1080/09537104.2019.1639655] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Immune thrombocytopenia (ITP) patients have thrombocytopenia and increased bleeding risk, but, conversely, they also have increased thrombotic risk which appears to be exacerbated by thrombopoietin-receptor agonist (TPO-RA)-treatment. Microvesicles (MVs) released from activated/apoptotic cells are prothrombotic due to exposure of phosphatidylserine (PS) and tissue factor (TF). MVs are increased in ITP patients, but their prothrombotic effect, before and during treatment with TPO-RAs, is unclear.We studied the effect of TPO-RAs on the procoagulant activity of MVs in 11 ITP patients, before, and two and six weeks after initiation of treatment, and in 15 healthy controls. MV-associated PS-activity, TF-activity and the capacity of isolated MVs and plasma to generate thrombin in a phospholipid-dependent manner were measured.Before treatment with TPO-RAs, prothrombotic markers in ITP patients were comparable to levels found in healthy controls. After both two and six weeks of TPO-RA-treatment, ITP patients had higher MV-associated PS-activity and phospholipid-dependent thrombin generation in plasma than controls. In addition, ITP patients had increased phospholipid-dependent MV-associated thrombin generation two weeks after initiation of TPO-RA-treatment compared with controls and pre-treatment levels. MV-associated TF-activity was low in controls and in ITP patients before and after initiation of TPO-RA-treatment.In conclusion, TPO-RAs increase phospholipid-dependent MV-associated thrombin generation in ITP patients. This could contribute to or exacerbate a pre-existing hypercoagulable state. Phospholipid-dependent thrombin generation generated by isolated MVs, or measured directly in plasma, may be potential tools that could help in the risk-assessment of future thromboembolic events in ITP patients, both before and after initiation of TPO-RA-treatment.
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Affiliation(s)
- Lamya Garabet
- Multidisciplinary Laboratory Medicine and Medical Biochemistry, Akershus University Hospital, Lørenskog, Norway.,Center for Laboratory Medicine, Østfold Hospital Trust, Grålum, Norway.,Institute of Clinical Medicine, University of Oslo, Norway
| | - Waleed Ghanima
- Institute of Clinical Medicine, University of Oslo, Norway.,Department of Research, Østfold Hospital Trust, Grålum, Norway
| | - Marit Hellum
- Institute of Clinical Medicine, University of Oslo, Norway.,Department of Medical Biochemistry, Oslo University Hospital, Oslo, Norway
| | - Per Morten Sandset
- Institute of Clinical Medicine, University of Oslo, Norway.,Department of Haematology, Oslo University Hospital, Oslo, Norway.,Research Institute of Internal Medicine, Oslo University Hospital, Oslo, Norway
| | - James B Bussel
- Department of Pediatrics, Division of Hematology, New York Presbyterian Hospital, Weill Cornell Medicine, New York, NY, USA
| | - Hoa Tran
- Department of Haematology, Akershus University Hospital, Lørenskog, Norway
| | - Carola E Henriksson
- Institute of Clinical Medicine, University of Oslo, Norway.,Department of Medical Biochemistry, Oslo University Hospital, Oslo, Norway
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Sowy S, Rutter CR, Jeffery U. Extracellular vesicle concentration and procoagulant activity of canine haemoperitoneum fluid and packed red blood cells. J Small Anim Pract 2019; 60:423-429. [PMID: 31025382 DOI: 10.1111/jsap.13002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Revised: 01/23/2019] [Accepted: 02/19/2019] [Indexed: 12/01/2022]
Abstract
OBJECTIVES To compare the concentration of phosphatidylserine-positive extracellular vesicles and phosphatidylserine-derived procoagulant activity of canine haemoperitoneum fluids and packed red blood cell units. MATERIALS AND METHODS Ten dogs with haemoperitoneum (neoplasia = 7; trauma = 1; other = 2) were recruited, and five non-leukoreduced packed red blood cell units purchased. Supernatants were collected from haemoperitoneum samples and packed red blood cell units using a consistent centrifugation protocol. Phosphatidylserine-positive extracellular vesicle concentrations were measured by flow cytometry and phosphatidylserine-mediated procoagulant activity by a commercial thrombin generation assay. RESULTS Phosphatidylserine-mediated procoagulant activity was significantly higher for supernatants collected from packed red blood cell units (median 54 nM, range 53 to 60 nM) than haemoperitoneum samples (median 43 nM; range 7 to 51 nM; P = 0.0007). By flow cytometry, the concentration of phosphatidylserine-positive extracellular vesicles was not significantly different between packed red blood cell (median: 415/μL, range 173 to 1331/μL) and haemoperitoneum samples (median: 314/μL, range 132 to 3880/μL; P = 0.77). CLINICAL SIGNIFICANCE This study does not suggest that shed abdominal blood contains more extracellular vesicles with phosphatidylserine-mediated procoagulant activity than donor packed red blood cell units. Clinical studies to compare the effects of autologous transfusion of shed abdominal blood and packed red blood cell units on coagulation status and clinical outcome are required.
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Affiliation(s)
- S Sowy
- Department of Small Animal Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, Texas 77843, USA
| | - C R Rutter
- Department of Small Animal Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, Texas 77843, USA
| | - U Jeffery
- Department of Veterinary Pathobiology, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, Texas 77843, USA
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12
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Thrombin Generation and Cancer: Contributors and Consequences. Cancers (Basel) 2019; 11:cancers11010100. [PMID: 30654498 PMCID: PMC6356447 DOI: 10.3390/cancers11010100] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2018] [Revised: 01/04/2019] [Accepted: 01/08/2019] [Indexed: 12/19/2022] Open
Abstract
The high occurrence of cancer-associated thrombosis is associated with elevated thrombin generation. Tumour cells increase the potential for thrombin generation both directly, through the expression and release of procoagulant factors, and indirectly, through signals that activate other cell types (including platelets, leukocytes and erythrocytes). Furthermore, cancer treatments can worsen these effects. Coagulation factors, including tissue factor, and inhibitors of coagulation are altered and extracellular vesicles (EVs), which can promote and support thrombin generation, are released by tumour and other cells. Some phosphatidylserine-expressing platelet subsets and platelet-derived EVs provide the surface required for the assembly of coagulation factors essential for thrombin generation in vivo. This review will explore the causes of increased thrombin production in cancer, and the availability and utility of tests and biomarkers. Increased thrombin production not only increases blood coagulation, but also promotes tumour growth and metastasis and as a consequence, thrombin and its contributors present opportunities for treatment of cancer-associated thrombosis and cancer itself.
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13
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Low extracellular vesicle-associated tissue factor activity in patients with persistent lupus anticoagulant and a history of thrombosis. Ann Hematol 2018; 98:313-319. [PMID: 30467688 PMCID: PMC6342892 DOI: 10.1007/s00277-018-3544-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Accepted: 11/06/2018] [Indexed: 10/27/2022]
Abstract
Lupus anticoagulants (LA) are a heterogeneous group of antiphospholipid antibodies (aPLAs) that promote thrombosis. Tissue factor (TF)-bearing extracellular vesicles (EVs) might contribute to the prothrombotic state of patients with persistent LA and a history of thrombosis. To investigate if EV-associated TF activity is elevated in a well-defined group of LA-positive patients with a history of thrombosis in comparison to that of healthy controls. Adult patients (n = 94, median age 40.1 years, interquartile range (IQR) 29.9-53.4; 87% females) positive for LA and a history of thrombosis (78% venous thrombosis, 17% arterial thrombosis, 5% venous thrombosis and arterial thrombosis) and healthy age- and sex-matched controls (n = 30, median age 42.9 years, IQR 38.6-45.8, 77% females) were included in this study. EV-TF activity was determined with a factor Xa generation assay and anti-β2-glycoprotein (anti-β2GPI) and anticardiolipin (aCL) antibodies by enzyme-linked immunoassays. EV-TF activity did not differ between 94 LA-positive patients with a history of thrombosis (median 0.05 pg/mL, IQR 0.00-0.14) and 30 healthy controls (median 0.06, IQR 0.00-0.11, p = 0.7745). No correlation was found between EV-TF activity and lupus-sensitive activated partial thromboplastin time (aPTT-LA) (rho = 0.034), Rosner index (rho = - 0.056), anti-β2GPI IgG (rho = 0.05), anti-β2GPI IgM (rho = - 0.08), aCL IgG (rho = 0.12), and aCL IgM (rho = - 0.11) in LA-positive patients. We found low EV-TF activity levels in LA-positive patients and a history of thrombosis and no correlation with analyzed aPLAs. Our data indicate that circulating TF-bearing EVs do not contribute to the prothrombotic state of patients with LA.
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