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Martinelli N, Rigoni AM, De Marchi S, Osti N, Donini M, Montagnana M, Castagna A, Pattini P, Udali S, De Franceschi L, Tinazzi E, Mazzi F, Moruzzi S, Argentino G, Delfino L, Sartori G, Azzini AM, Tacconelli E, Van Dreden P, Lippi G, Girelli D, Olivieri O, Friso S, Pizzolo F. High Plasma Levels of Activated Factor VII-Antithrombin Complex Point to Increased Tissue Factor Expression in Patients with SARS-CoV-2 Pneumonia: A Potential Link with COVID-19 Prothrombotic Diathesis. Diagnostics (Basel) 2022; 12:diagnostics12112792. [PMID: 36428852 PMCID: PMC9689539 DOI: 10.3390/diagnostics12112792] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 11/04/2022] [Accepted: 11/10/2022] [Indexed: 11/16/2022] Open
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is the causal agent of coronavirus disease 2019 (COVID-19), in which coagulation abnormalities and endothelial dysfunction play a key pathogenic role. Tissue factor (TF) expression is triggered by endothelial dysfunction. Activated factor VII-antithrombin (FVIIa-AT) complex reflects indirectly FVIIa-TF interaction and has been proposed as a potential biomarker of prothrombotic diathesis. FVIIa-AT plasma concentration was measured in 40 patients (30 males and 10 females; 64.8 ± 12.3 years) admitted with SARS-CoV-2 pneumonia during the first pandemic wave in Italy. Two sex- and age-matched cohorts without COVID-19, with or without signs of systemic inflammation, were used to compare FVIIa-AT data. The FVIIa-AT plasma levels in COVID-19 patients were higher than those in non-COVID-19 subjects, either with or without inflammation, while no difference was observed among non-COVID-19 subjects. The association between COVID-19 and FVIIa-AT levels remained significant after adjustment for sex, age, C-reactive protein, renal function, fibrinogen, prothrombin time and activated partial thromboplastin time. Our results indicate that SARS-CoV-2 infection, at least during the first pandemic wave, was characterized by high FVIIa-AT levels, which may suggest an enhanced FVIIa-TF interaction in COVID-19, potentially consistent with SARS-CoV-2-induced endotheliopathy.
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Affiliation(s)
- Nicola Martinelli
- Department of Medicine, University of Verona, 37129 Verona, Italy
- Correspondence: ; Tel.: +39-045-8126658; Fax: +39-045-8027473
| | - Anna Maria Rigoni
- Angiology Unit, Department of Cardiovascular and Thoracic, Azienda Ospedaliera Universitaria Integrata, 37126 Verona, Italy
| | - Sergio De Marchi
- Department of Medicine, University of Verona, 37129 Verona, Italy
| | - Nicola Osti
- Department of Medicine, University of Verona, 37129 Verona, Italy
| | - Martino Donini
- Department of Medicine, University of Verona, 37129 Verona, Italy
| | - Martina Montagnana
- Section of Clinical Biochemistry, University of Verona, 37129 Verona, Italy
| | | | - Patrizia Pattini
- Department of Medicine, University of Verona, 37129 Verona, Italy
| | - Silvia Udali
- Department of Medicine, University of Verona, 37129 Verona, Italy
| | | | - Elisa Tinazzi
- Department of Medicine, University of Verona, 37129 Verona, Italy
| | - Filippo Mazzi
- Department of Medicine, University of Verona, 37129 Verona, Italy
| | - Sara Moruzzi
- Department of Medicine, University of Verona, 37129 Verona, Italy
| | | | - Lorenzo Delfino
- Department of Medicine, University of Verona, 37129 Verona, Italy
| | - Giulia Sartori
- Department of Medicine, University of Verona, 37129 Verona, Italy
| | - Anna Maria Azzini
- Department of Diagnostics and Public Health, University of Verona, 37129 Verona, Italy
| | - Evelina Tacconelli
- Department of Diagnostics and Public Health, University of Verona, 37129 Verona, Italy
| | - Patrick Van Dreden
- Clinical Research Department, Diagnostica Stago, 92230 Gennevilliers, France
| | - Giuseppe Lippi
- Section of Clinical Biochemistry, University of Verona, 37129 Verona, Italy
| | - Domenico Girelli
- Department of Medicine, University of Verona, 37129 Verona, Italy
| | | | - Simonetta Friso
- Department of Medicine, University of Verona, 37129 Verona, Italy
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2
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Beleva EA, Deneva TI, Stoencheva SS, Grudeva-Popova ZG. Longitudinal Dynamics of Coagulation and Angiogenesis Markers in Cancer Patients During and After Chemotherapy. Clin Appl Thromb Hemost 2021; 27:10760296211056637. [PMID: 34918975 PMCID: PMC8728769 DOI: 10.1177/10760296211056637] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Hemostatic parameters have been investigated as molecular determinants of tumor
progression. To analyze the dynamics of microparticle-associated tissue factor
activity (MPTF), tissue factor antigen (TF-Ag), and angiopоietin-2 (ANG-2) in
cancer patients before, during, and after active treatment and to explore their
potential as biomarkers for metastatic occurrence and death. Blood for the
analysis of MPTF, TF-Ag, ANG-2, and conventional hemostatic tests was sampled in
111 patients with various cancers at 4 consecutive visits: before first
chemotherapy cycle, after 3 courses, at the sixth course, and 3 months after
chemotherapy cessation. Patients were followed up until metastatic
progression/death or the end of the study. MPTF did not change during
chemotherapy, but increased significantly after treatment cessation. Total TF-Ag
and ANG-2 decreased throughout active treatment. Significant drop of their
levels was observed 3 months post therapy cessation. Progressive disease was
significantly associated with higher pre-chemotherapy TF-Ag and fibrinogen.
Elevated baseline levels of fibrinogen were associated with increased risk of
shortened progression free survival. Cessation of chemotherapy is associated
with significant change of hemostatic parameters. Pre-chemotherapy levels of
TF-Ag and fibrinogen may be informative of disease state and prognosis.
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Affiliation(s)
- Elina A Beleva
- 118870Medical University of Plovdiv, Plovdiv, Bulgaria.,564825University Multiprofile Hospital for Active Treatment "Sveti Georgi" EAD-Plovdiv, Plovdiv, Bulgaria
| | - Tanya I Deneva
- 118870Medical University of Plovdiv, Plovdiv, Bulgaria.,564825University Multiprofile Hospital for Active Treatment "Sveti Georgi" EAD-Plovdiv, Plovdiv, Bulgaria
| | - Snezhana S Stoencheva
- 118870Medical University of Plovdiv, Plovdiv, Bulgaria.,564825University Multiprofile Hospital for Active Treatment "Sveti Georgi" EAD-Plovdiv, Plovdiv, Bulgaria
| | - Zhanet G Grudeva-Popova
- 118870Medical University of Plovdiv, Plovdiv, Bulgaria.,564825University Multiprofile Hospital for Active Treatment "Sveti Georgi" EAD-Plovdiv, Plovdiv, Bulgaria
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3
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Cañas CA, Cañas F, Bautista-Vargas M, Bonilla-Abadía F. Role of Tissue Factor in the Pathogenesis of COVID-19 and the Possible Ways to Inhibit It. Clin Appl Thromb Hemost 2021; 27:10760296211003983. [PMID: 33784877 PMCID: PMC8020089 DOI: 10.1177/10760296211003983] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 02/26/2021] [Accepted: 03/01/2021] [Indexed: 02/06/2023] Open
Abstract
COVID-19 (Coronavirus Disease 2019) is a highly contagious infection and associated with high mortality rates, primarily in elderly; patients with heart failure; high blood pressure; diabetes mellitus; and those who are smokers. These conditions are associated to increase in the level of the pulmonary epithelium expression of angiotensin-converting enzyme 2 (ACE-2), which is a recognized receptor of the S protein of the causative agent SARS-CoV-2 (Severe Acute Respiratory Syndrome Coronavirus 2). Severe cases are manifested by parenchymal lung involvement with a significant inflammatory response and the development of microvascular thrombosis. Several factors have been involved in developing this prothrombotic state, including the inflammatory reaction itself with the participation of proinflammatory cytokines, endothelial dysfunction/endotheliitis, the presence of antiphospholipid antibodies, and possibly the tissue factor (TF) overexpression. ARS-Cov-19 ACE-2 down-regulation has been associated with an increase in angiotensin 2 (AT2). The action of proinflammatory cytokines, the increase in AT2 and the presence of antiphospholipid antibodies are known factors for TF activation and overexpression. It is very likely that the overexpression of TF in COVID-19 may be related to the pathogenesis of the disease, hence the importance of knowing the aspects related to this protein and the therapeutic strategies that can be derived. Different therapeutic strategies are being built to curb the expression of TF as a therapeutic target for various prothrombotic events; therefore, analyzing this treatment strategy for COVID-19-associated coagulopathy is rational. Medications such as celecoxib, cyclosporine or colchicine can impact on COVID-19, in addition to its anti-inflammatory effect, through inhibition of TF.
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Affiliation(s)
- Carlos A. Cañas
- Unit of Rheumatology, Fundación Valle del Lili, Universidad Icesi, Cali, Colombia
| | - Felipe Cañas
- Unit of Cardiology, Clínica Medellín, Medellín, Colombia
| | | | - Fabio Bonilla-Abadía
- Unit of Rheumatology, Fundación Valle del Lili, Universidad Icesi, Cali, Colombia
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Bautista-Vargas M, Bonilla-Abadía F, Cañas CA. Potential role for tissue factor in the pathogenesis of hypercoagulability associated with in COVID-19. J Thromb Thrombolysis 2020; 50:479-483. [PMID: 32519164 PMCID: PMC7282470 DOI: 10.1007/s11239-020-02172-x] [Citation(s) in RCA: 68] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
In December 2019, a new and highly contagious infectious disease emerged in Wuhan, China. The etiologic agent was identified as a novel coronavirus, now known as Severe Acute Syndrome Coronavirus-2 (SARS-CoV-2). Recent research has revealed that virus entry takes place upon the union of the virus S surface protein with the type I transmembrane metallo-carboxypeptidase, angiotensin converting enzyme 2 (ACE-2) identified on epithelial cells of the host respiratory tract. Virus triggers the synthesis and release of pro-inflammatory cytokines, including IL-6 and TNF-α and also promotes downregulation of ACE-2, which promotes a concomitant increase in levels of angiotensin II (AT-II). Both TNF-α and AT-II have been implicated in promoting overexpression of tissue factor (TF) in platelets and macrophages. Additionally, the generation of antiphospholipid antibodies associated with COVID-19 may also promote an increase in TF. TF may be a critical mediator associated with the development of thrombotic phenomena in COVID-19, and should be a target for future study.
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Affiliation(s)
- Mario Bautista-Vargas
- Unit of Rheumatology, Fundación Valle del Lili, Universidad Icesi, Avenida Simón Bolívar Cra.98 No.18-49, Cali, Colombia
| | - Fabio Bonilla-Abadía
- Unit of Rheumatology, Fundación Valle del Lili, Universidad Icesi, Avenida Simón Bolívar Cra.98 No.18-49, Cali, Colombia
| | - Carlos A Cañas
- Unit of Rheumatology, Fundación Valle del Lili, Universidad Icesi, Avenida Simón Bolívar Cra.98 No.18-49, Cali, Colombia.
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Gravastrand CS, Steinkjer B, Halvorsen B, Landsem A, Skjelland M, Jacobsen EA, Woodruff TM, Lambris JD, Mollnes TE, Brekke OL, Espevik T, Rokstad AMA. Cholesterol Crystals Induce Coagulation Activation through Complement-Dependent Expression of Monocytic Tissue Factor. THE JOURNAL OF IMMUNOLOGY 2019; 203:853-863. [PMID: 31270150 DOI: 10.4049/jimmunol.1900503] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Accepted: 06/13/2019] [Indexed: 01/24/2023]
Abstract
Cholesterol crystals (CC) are strong activators of complement and could potentially be involved in thromboinflammation through complement-coagulation cross-talk. To explore the coagulation-inducing potential of CC, we performed studies in lepirudin-based human whole blood and plasma models. In addition, immunohistological examinations of brain thrombi and vulnerable plaque material from patients with advanced carotid atherosclerosis were performed using polarization filter reflected light microscopy to identify CC. In whole blood, CC exposure induced a time- and concentration-dependent generation of prothrombin fragment 1+2 (PTF1.2), tissue factor (TF) mRNA synthesis, and monocyte TF expression. Blocking Abs against TF abolished CC-mediated coagulation, thus indicating involvement of the TF-dependent pathway. Blockade of FXII by corn trypsin inhibitor had a significant inhibitory effect on CC-induced PTF1.2 in platelet-free plasma, although the overall activation potential was low. CC exposure did not induce platelet aggregation, TF microparticle induction, or TF on granulocytes or eosinophils. Inhibition of complement C3 by CP40 (compstatin), C5 by eculizumab, or C5aR1 by PMX53 blocked CC-induced PTF1.2 by 90% and reduced TF+ monocytes from 18-20 to 1-2%. The physiologic relevance was supported by birefringent CC structures adjacent to monocytes (CD14), TF, and activated complement iC3b and C5b-9 in a human brain thrombus. Furthermore, monocyte influx and TF induction in close proximity to CC-rich regions with activated complement were found in a vulnerable plaque. In conclusion, CC could be active, releasable contributors to thrombosis by inducing monocyte TF secondary to complement C5aR1 signaling.
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Affiliation(s)
- Caroline S Gravastrand
- Centre of Molecular Inflammation Research, Norwegian University of Science and Technology, 7491 Trondheim, Norway.,Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology, 7491 Trondheim, Norway
| | - Bjørg Steinkjer
- Centre of Molecular Inflammation Research, Norwegian University of Science and Technology, 7491 Trondheim, Norway.,Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology, 7491 Trondheim, Norway
| | - Bente Halvorsen
- Research Institute of Internal Medicine, Oslo University Hospital Rikshospitalet, University of Oslo, 0424 Oslo, Norway.,Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, 0424 Oslo, Norway.,K.G. Jebsen Inflammation Research Centre, University of Oslo, 0318 Oslo, Norway
| | - Anne Landsem
- Research Laboratory, Nordland Hospital, 8092 Bodo, Norway.,Faculty of Health Sciences, K.G. Jebsen Thrombosis Research and Expertise Center, The Arctic University of Norway, 9037 Tromso, Norway
| | - Mona Skjelland
- Department of Neurology, Oslo University Hospital, 0424 Oslo, Norway
| | | | - Trent M Woodruff
- School of Biomedical Sciences, Faculty of Medicine, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - John D Lambris
- Department of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia, PA 19104
| | - Tom E Mollnes
- Centre of Molecular Inflammation Research, Norwegian University of Science and Technology, 7491 Trondheim, Norway.,Research Laboratory, Nordland Hospital, 8092 Bodo, Norway.,Faculty of Health Sciences, K.G. Jebsen Thrombosis Research and Expertise Center, The Arctic University of Norway, 9037 Tromso, Norway.,Department of Immunology, Oslo University Hospital, Rikshospitalet, 0424 Oslo, Norway; and
| | - Ole-Lars Brekke
- Research Laboratory, Nordland Hospital, 8092 Bodo, Norway.,Faculty of Health Sciences, K.G. Jebsen Thrombosis Research and Expertise Center, The Arctic University of Norway, 9037 Tromso, Norway
| | - Terje Espevik
- Centre of Molecular Inflammation Research, Norwegian University of Science and Technology, 7491 Trondheim, Norway.,Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology, 7491 Trondheim, Norway
| | - Anne Mari A Rokstad
- Centre of Molecular Inflammation Research, Norwegian University of Science and Technology, 7491 Trondheim, Norway; .,Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology, 7491 Trondheim, Norway.,Centre for Obesity, Clinic of Surgery, St. Olav's University Hospital, 7006 Trondheim, Norway
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6
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Microparticles profiling in trauma patients: high level of microparticles induce activation of platelets in vitro. Eur J Trauma Emerg Surg 2019; 46:43-51. [DOI: 10.1007/s00068-019-01111-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Accepted: 03/01/2019] [Indexed: 11/27/2022]
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7
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Nomura S, Shimizu M. Clinical significance of procoagulant microparticles. J Intensive Care 2015; 3:2. [PMID: 25705427 PMCID: PMC4336124 DOI: 10.1186/s40560-014-0066-z] [Citation(s) in RCA: 97] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2014] [Accepted: 12/03/2014] [Indexed: 01/05/2023] Open
Abstract
Microparticles (MPs) are small membrane vesicles that are released from many different cell types by exocytic budding of the plasma membrane in response to cellular activation or apoptosis. MPs may also be involved in clinical diseases because they express phospholipids, which function as procoagulants. Although flow cytometry is the most widely used method for studying MPs, some novel assays, such as tissue factor-dependent procoagulant assay or the ELISA method, have been reported. However, the use of quantification of MP as a clinical tool is still controversial. Elevated platelet-derived MP, endothelial cell-derived MP, and monocyte-derived MP concentrations are documented in almost all thrombotic diseases occurring in venous and arterial beds. However, the significance of MPs in various clinical conditions remains controversial. An example of this controversy is that it is unknown if MPs found in peripheral blood vessels cause thrombosis or whether they are the result of thrombosis. Numerous studies have shown that not only the quantity, but also the cellular origin and composition of circulating MPs, are dependent on the type of disease, the disease state, and medical treatment. Additionally, many different functions have been attributed to MPs. Therefore, the number and type of clinical disorders associated with elevated MPs are currently increasing. However, MPs were initially thought to be small particles with procoagulant activity. Taken together, our review suggests that MPs may be a useful biomarker to identify thrombosis.
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Affiliation(s)
- Shosaku Nomura
- First Department of Internal Medicine, Kansai Medical University, 2-3-1 Shin-machi, Hirakata, Osaka 573-1191 Japan
| | - Michiomi Shimizu
- First Department of Internal Medicine, Kansai Medical University, 2-3-1 Shin-machi, Hirakata, Osaka 573-1191 Japan
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8
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Sossdorf M, Otto GP, Claus RA, Gabriel HHW, Lösche W. Cell-derived microparticles promote coagulation after moderate exercise. Med Sci Sports Exerc 2011; 43:1169-76. [PMID: 21131870 DOI: 10.1249/mss.0b013e3182068645] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
UNLABELLED Cell-derived procoagulant microparticles (MP) might be able to contribute to exercise-induced changes in blood hemostasis. PURPOSES This study aimed to examine (i) the concentration and procoagulant activity of cell-derived MP after a moderate endurance exercise and (ii) the differences in the release, clearance, and activity of MP before and after exercise between trained and untrained individuals. METHODS All subjects performed a single bout of physical exercise on a bicycle ergometer for 90 min at 80% of their individual anaerobic threshold. MP were identified and quantified by flow cytometry measurements. Procoagulant activity of MP was measured by a prothrombinase activity assay as well as tissue factor-induced fibrin formation in MP-containing plasma. RESULTS At baseline, no differences were observed for the absolute number and procoagulant activities of MP between trained and untrained subjects. However, trained individuals had a lower number of tissue factor-positive monocyte-derived MP compared with untrained individuals. In trained subjects, exercise induced a significant increase in the number of MP derived from platelets, monocytes, and endothelial cells, with maximum values at 45 min after exercise and returned to basal levels at 2 h after exercise. Untrained subjects revealed a similar increase in platelet-derived MP, but their level was still increased at 2 h after exercise, indicating a reduced clearance compared with trained individuals. Procoagulant activities of MP were increased immediately after exercise and remained elevated up to 2 h after exercise. CONCLUSIONS We conclude that increased levels of MP were found in healthy individuals after an acute bout of exercise, that the amount of circulating MP contributes to an exercise-induced increase of hemostatic potential, and that there were differences in kinetic and dynamic characteristics between trained and untrained individuals.
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Affiliation(s)
- Maik Sossdorf
- Department of Anaesthesiology and Intensive Care Medicine, Jena University Hospital, and Department of Sports Medicine, Institute of Sports Science, Jena Friedrich-Schiller University, Jena, Germany.
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9
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Sossdorf M, Otto GP, Claus RA, Gabriel HH, Lösche W. Release of pro-coagulant microparticles after moderate endurance exercise. Platelets 2010; 21:389-91. [DOI: 10.3109/09537101003698564] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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10
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Mikropartikel. Hamostaseologie 2010. [DOI: 10.1007/978-3-642-01544-1_11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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11
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Sossdorf M, König V, Gummert J, Marx G, Lösche W. Correlations between platelet-derived microvesicles and thrombin generation in patients with coronary artery disease. Platelets 2009; 19:476-7. [PMID: 18925517 DOI: 10.1080/09537100802210337] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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12
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Abstract
Although mammalian platelets are anucleated cells, a number of studies have shown that they retain a pool of messenger RNA (mRNA) carried over from the megakaryocyte during thrombopoiesis. Platelet mRNA was originally thought to be relatively unstable and short-lived within the youngest cells and has been used as a potential marker of platelet turnover. In this article we will discuss both theoretical and methodological issues related to the measurement of these younger, "reticulated platelets". A key question relating to platelet mRNA is also whether it has any functional relevance other than a marker of platelet immaturity. Evidence going back more than 30 years suggests that platelets can biosynthesize proteins. However, it is only very recently that the nature and specificity of platelet mRNA has been examined in any detail. Difficulties in obtaining pure platelet mRNA, free of contamination from other cells has added to the complexity of unravelling this story. However, there is now clear evidence that platelets contain small but significant levels of message for a variety of proteins. The platelet mRNA pool is much richer and more diverse than previously thought and recent data suggests that regulated synthesis of a selected number of proteins can be induced on platelet activation. The full complexity of the platelet genome is now just being revealed and may open the possibility for improved diagnosis and therapy of many haemostatic and thrombotic disorders.
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Affiliation(s)
- Paul Harrison
- Oxford Haemophilia and Thrombosis Centre, Churchill Hospital, Oxford, UK.
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13
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Bexborn F, Engberg AE, Sandholm K, Mollnes TE, Hong J, Nilsson Ekdahl K. Hirudin versus heparin for use in whole bloodin vitrobiocompatibility models. J Biomed Mater Res A 2009; 89:951-9. [DOI: 10.1002/jbm.a.32034] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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15
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Mezzano D, Matus V, Sáez CG, Pereira J, Panes O. Tissue factor storage, synthesis and function in normal and activated human platelets. Thromb Res 2008; 122 Suppl 1:S31-6. [PMID: 18691497 DOI: 10.1016/s0049-3848(08)70016-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
The source and significance of blood-borne tissue factor (TF) are controversial. The presence of TF in platelets was initially attributed to transfer of the protein from other cells (e.g., monocytes) and/or TF-bearing microparticles. Recently, TF-mRNA, neo-synthesis of the protein and TF-dependent procoagulant activity (PCA) have been reported in human platelets. The storage of "encrypted", potentially active TF in circulating, non-stimulated platelets remains debatable. One report strongly suggests that the starting of platelet PCA depends on de novo TF synthesis induced by platelet activation, whereas others provide persuasive evidence that platelets circulate with preformed TF, readily functional upon demand. These findings may have an impact on our current ideas of physiological hemostasis and thrombus formation. In fact, platelets would lead not only the formation of the primary plug, but in this microenvironment they would also contribute to the triggering of thrombin generation, fibrin deposition, clot consolidation and initial protection from fibrinolysis. Much research is needed to validate this platelet-based hemostasis model.
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Affiliation(s)
- Diego Mezzano
- Department of Hematology-Oncology, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile.
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16
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Nomura S, Ozaki Y, Ikeda Y. Function and role of microparticles in various clinical settings. Thromb Res 2008; 123:8-23. [DOI: 10.1016/j.thromres.2008.06.006] [Citation(s) in RCA: 154] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2008] [Revised: 05/16/2008] [Accepted: 06/09/2008] [Indexed: 12/18/2022]
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17
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Panes O, Matus V, Sáez CG, Quiroga T, Pereira J, Mezzano D. Human platelets synthesize and express functional tissue factor. Blood 2007; 109:5242-50. [PMID: 17347408 DOI: 10.1182/blood-2006-06-030619] [Citation(s) in RCA: 161] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
AbstractThe source and significance of bloodborne tissue factor (TF) are controversial. TF mRNA, protein, and TF-dependent procoagulant activity (PCA) have been detected in human platelets, but direct evidence of TF synthesis is missing. Nonstimulated monocyte-free platelets from most patients expressed TF mRNA, which was enhanced or induced in all of them after platelet activation. Immunoprecipitation assays revealed TF protein (mainly of a molecular weight [Mr] of approximately 47 kDa, with other bands of approximately 35 and approximately 60 kDa) in nonstimulated platelet membranes, which also increased after activation. This enhancement was concomitant with TF translocation to the plasma membrane, as demonstrated by immunofluorescence–confocal microscopy and biotinylation of membrane proteins. Platelet PCA, assessed by factor Xa (FXa) generation, was induced after activation and was inhibited by 48% and 76% with anti-TF and anti-FVIIa, respectively, but not by intrinsic pathway inhibitors. Platelets incorporated [35S]-methionine into TF proteins with Mr of approximately 47 kDa, approximately 35 kDa, and approximately 60 kDa, more intensely after activation. Puromycin but not actinomycin D or DRB (5,6-dichloro-1-beta-D-ribofuranosylbenzimidazole) inhibited TF neosynthesis. Thus, human platelets not only assemble the clotting reactions on their membrane, but also supply their own TF for thrombin generation in a timely and spatially circumscribed process. These observations simplify, unify, and provide a more coherent formulation of the current cell-based model of hemostasis.
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Affiliation(s)
- Olga Panes
- Department of Hematology-Oncology, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
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18
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Vaidyula VR, Boden G, Rao AK. Platelet and monocyte activation by hyperglycemia and hyperinsulinemia in healthy subjects. Platelets 2007; 17:577-85. [PMID: 17127486 DOI: 10.1080/09537100600760814] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
UNLABELLED Type 2 diabetes mellitus (T2DM) patients have hyperglycemia and hyperinsulinemia and increased risk of atherosclerosis and acute vascular complications. We have reported elevated circulating tissue factor procoagulant activity (TF-PCA) during hyperglycemia (HG) and hyperinsulinemia (HI) in normal subjects. To evaluate the effect of hyperglycemia and hyperinsulinemia on blood cell activation, we assessed platelet CD40L and P-selectin, monocyte tissue factor (TF), and the formation of monocyte-platelet and neutrophil-platelet aggregates. These were assessed in the resting state and following activation with ADP and thrombin (SFLLRN). Healthy individuals were subjected to 24 h of hyperglycemia and hyperinsulinemia, selective hyperglycemia, selective hyperinsulinemia, or normal glucose and insulin. Platelet CD40L expression increased with high glucose/high insulin, selective hyperglycemia and selective hyperinsulinemia. Monocyte-platelet aggregates increased with high glucose/high insulin. Monocyte TF expression increased with high glucose/high insulin and with selective hyperinsulinemia. Upon stimulation with ADP and SFLLRN, monocyte-platelet and neutrophil-platelet aggregates, platelet CD40L and P-selectin, and monocyte TF increased compared to the resting state but was not different between 0 and 24 h, indicating that the responsiveness to those agonists was not altered. CONCLUSIONS Hyperglycemia-hyperinsulinemia in healthy individuals induced platelet activation and monocyte TF expression promoting a procoagulant and proinflammatory state that may contribute to acute vascular events and atherogenesis. Platelet responsiveness to activation with ADP or SFLLRN appears not to be altered by hyperglycemia-hyperinsulinemia.
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Affiliation(s)
- Vijender R Vaidyula
- Sol Sherry Thrombosis Research Center, Temple University School of Medicine, Philadelphia, PA 19140, USA
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Lösche W, Heptinstall S. Value of Platelet Activation Markers as Prothrombotic Risk Indicators. Transfus Med Hemother 2007. [DOI: 10.1159/000097497] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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Daubie V, Pochet R, Houard S, Philippart P. Tissue factor: a mini-review. J Tissue Eng Regen Med 2007; 1:161-9. [DOI: 10.1002/term.9] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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FISS I, DANNE M, STENDEL R. Use of Gelatin-Thrombin Matrix Hemostatic Sealant in Cranial Neurosurgery. Neurol Med Chir (Tokyo) 2007; 47:462-7. [DOI: 10.2176/nmc.47.462] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Ingo FISS
- Department of Neurosurgery, Charité-University Medicine Berlin, Campus Benjamin Franklin
| | - Marco DANNE
- Department of Neurosurgery, Charité-University Medicine Berlin, Campus Benjamin Franklin
| | - Ruediger STENDEL
- Department of Neurosurgery, Charité-University Medicine Berlin, Campus Benjamin Franklin
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Bugert P, Ficht M, Klüter H. Towards the Identification of Novel Platelet Receptors: Comparing RNA and Proteome Approaches. Transfus Med Hemother 2006. [DOI: 10.1159/000091792] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
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Stampfuss JJ, Censarek P, Fischer JW, Schrör K, Weber AA. Rapid Release of Active Tissue Factor From Human Arterial Smooth Muscle Cells Under Flow Conditions. Arterioscler Thromb Vasc Biol 2006; 26:e34-7. [PMID: 16528008 DOI: 10.1161/01.atv.0000216407.89528.b0] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Circulating tissue factor (TF) is an important determinant of coronary thrombosis. Among other cell types, such as monocytes, vascular smooth muscle cells (SMCs) are capable of releasing TF. When studied under static conditions, SMCs do release TF, but this process is slow and, thus, cannot explain the elevated levels of circulating TF, as observed in patients with acute coronary syndromes. The present study demonstrates that cultured human mammary artery SMCs very rapidly (minutes) release active, microparticle-bound TF when exposed to flow conditions. There was a clear log-linear correlation between the shear rate (range 10 s(-1) to 1500 s(-1)) and the procoagulant activity of SMC perfusates. Flow-dependent release of TF was transient (10 minutes) and did not measurably reduce cell surface TF content. Interestingly, a time-dependent (t(1/2) 30 minutes) re-exposure of releasable TF was detected after a no-flow period. These data demonstrate that SMCs may become a pathophysiologically relevant source of TF that can be rapidly released into the circulation in situations in which endothelial damage occurs and SMCs come into a close contact with the flowing blood.
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Affiliation(s)
- Jan-Julius Stampfuss
- Institut für Pharmakologie und Klinische Pharmakologie, Universitätsklinikum Düsseldorf, Germany
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