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Herreros-Cabello A, Bosch-Nicolau P, Pérez-Molina JA, Salvador F, Monge-Maillo B, Rodriguez-Palomares JF, Ribeiro ALP, Sánchez-Montalvá A, Sabino EC, Norman FF, Fresno M, Gironès N, Molina I. Identification of Chagas disease biomarkers using untargeted metabolomics. Sci Rep 2024; 14:18768. [PMID: 39138245 DOI: 10.1038/s41598-024-69205-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2024] [Accepted: 08/01/2024] [Indexed: 08/15/2024] Open
Abstract
Untargeted metabolomic analysis is a powerful tool used for the discovery of novel biomarkers. Chagas disease (CD), caused by Trypanosoma cruzi, is a neglected tropical disease that affects 6-7 million people with approximately 30% developing cardiac manifestations. The most significant clinical challenge lies in its long latency period after acute infection, and the lack of surrogate markers to predict disease progression or cure. In this cross-sectional study, we analyzed sera from 120 individuals divided into four groups: 31 indeterminate CD, 41 chronic chagasic cardiomyopathy (CCC), 18 Latin Americans with other cardiomyopathies and 30 healthy volunteers. Using a high-throughput panel of 986 metabolites, we identified three distinct profiles among individuals with cardiomyopathy, indeterminate CD and healthy volunteers. After a more stringent analysis, we identified some potential biomarkers. Among peptides, phenylacetylglutamine and fibrinopeptide B (1-13) exhibited an increasing trend from controls to ICD and CCC. Conversely, reduced levels of bilirubin and biliverdin alongside elevated urobilin correlated with disease progression. Finally, elevated levels of cystathionine, phenol glucuronide and vanillactate among amino acids distinguished CCC individuals from ICD and controls. Our novel exploratory study using metabolomics identified potential biomarker candidates, either alone or in combination that if confirmed, can be translated into clinical practice.
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Affiliation(s)
- Alfonso Herreros-Cabello
- Centro de Biología Molecular Severo Ochoa (CSIC-UAM), Madrid, Spain
- Departamento de Biología Molecular, Universidad Autónoma de Madrid (UAM), 28049, Madrid, Spain
| | - Pau Bosch-Nicolau
- Infectious Diseases Department, Vall d'Hebron University Hospital, International Health Unit Vall d'Hebron-Drassanes, PROSICS Barcelona, Barcelona, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III, Madrid, Spain
- Medicine Department, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - José A Pérez-Molina
- Centro de Investigación Biomédica en Red de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III, Madrid, Spain
- National Referral Unit for Tropical Diseases, Infectious Diseases Department, Hospital Universitario Ramón y Cajal, IRYCIS, Madrid, Spain
| | - Fernando Salvador
- Infectious Diseases Department, Vall d'Hebron University Hospital, International Health Unit Vall d'Hebron-Drassanes, PROSICS Barcelona, Barcelona, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III, Madrid, Spain
- Medicine Department, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Begoña Monge-Maillo
- Centro de Investigación Biomédica en Red de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III, Madrid, Spain
- National Referral Unit for Tropical Diseases, Infectious Diseases Department, Hospital Universitario Ramón y Cajal, IRYCIS, Madrid, Spain
| | - Jose F Rodriguez-Palomares
- Department of Cardiology, Vall d'Hebron Hospital Universitari, Vall d'Hebron Barcelona Hospital Campus, Barcelona, Spain
- Medicine Department, Universitat Autònoma de Barcelona, Barcelona, Spain
- CIBER de Enfermedades Cardiovasculares, Instituto de Salud Carlos III, Madrid, Spain
| | | | - Adrián Sánchez-Montalvá
- Infectious Diseases Department, Vall d'Hebron University Hospital, International Health Unit Vall d'Hebron-Drassanes, PROSICS Barcelona, Barcelona, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III, Madrid, Spain
- Medicine Department, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Ester Cerdeira Sabino
- Faculdade de Medicina, Universidade de São Paulo, Instituto de Medicina Tropical de São Paulo, São Paulo, Brazil
| | - Francesca F Norman
- Centro de Investigación Biomédica en Red de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III, Madrid, Spain
- National Referral Unit for Tropical Diseases, Infectious Diseases Department, Hospital Universitario Ramón y Cajal, IRYCIS, Madrid, Spain
| | - Manuel Fresno
- Centro de Biología Molecular Severo Ochoa (CSIC-UAM), Madrid, Spain
- Departamento de Biología Molecular, Universidad Autónoma de Madrid (UAM), 28049, Madrid, Spain
- Instituto Universitario de Biología Molecular, Universidad Autónoma de Madrid (IUBM-UAM), Madrid, Spain
- Instituto de Investigación Sanitaria, Hospital Universitario de La Princesa, Madrid, Spain
| | - Núria Gironès
- Centro de Biología Molecular Severo Ochoa (CSIC-UAM), Madrid, Spain
- Departamento de Biología Molecular, Universidad Autónoma de Madrid (UAM), 28049, Madrid, Spain
- Instituto Universitario de Biología Molecular, Universidad Autónoma de Madrid (IUBM-UAM), Madrid, Spain
- Instituto de Investigación Sanitaria, Hospital Universitario de La Princesa, Madrid, Spain
| | - Israel Molina
- Infectious Diseases Department, Vall d'Hebron University Hospital, International Health Unit Vall d'Hebron-Drassanes, PROSICS Barcelona, Barcelona, Spain.
- Centro de Investigación Biomédica en Red de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III, Madrid, Spain.
- Medicine Department, Universitat Autònoma de Barcelona, Barcelona, Spain.
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2
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Pretorius E, Kell DB. A Perspective on How Fibrinaloid Microclots and Platelet Pathology May be Applied in Clinical Investigations. Semin Thromb Hemost 2024; 50:537-551. [PMID: 37748515 PMCID: PMC11105946 DOI: 10.1055/s-0043-1774796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/27/2023]
Abstract
Microscopy imaging has enabled us to establish the presence of fibrin(ogen) amyloid (fibrinaloid) microclots in a range of chronic, inflammatory diseases. Microclots may also be induced by a variety of purified substances, often at very low concentrations. These molecules include bacterial inflammagens, serum amyloid A, and the S1 spike protein of severe acute respiratory syndrome coronavirus 2. Here, we explore which of the properties of these microclots might be used to contribute to differential clinical diagnoses and prognoses of the various diseases with which they may be associated. Such properties include distributions in their size and number before and after the addition of exogenous thrombin, their spectral properties, the diameter of the fibers of which they are made, their resistance to proteolysis by various proteases, their cross-seeding ability, and the concentration dependence of their ability to bind small molecules including fluorogenic amyloid stains. Measuring these microclot parameters, together with microscopy imaging itself, along with methodologies like proteomics and imaging flow cytometry, as well as more conventional assays such as those for cytokines, might open up the possibility of a much finer use of these microclot properties in generative methods for a future where personalized medicine will be standard procedures in all clotting pathology disease diagnoses.
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Affiliation(s)
- Etheresia Pretorius
- Department of Physiological Sciences, Faculty of Science, Stellenbosch University, Stellenbosch, Matieland, South Africa
- Department of Biochemistry and Systems Biology, Institute of Systems, Molecular and Integrative Biology, Faculty of Health and Life Sciences, University of Liverpool, Liverpool, United Kingdom
| | - Douglas B. Kell
- Department of Physiological Sciences, Faculty of Science, Stellenbosch University, Stellenbosch, Matieland, South Africa
- Department of Biochemistry and Systems Biology, Institute of Systems, Molecular and Integrative Biology, Faculty of Health and Life Sciences, University of Liverpool, Liverpool, United Kingdom
- The Novo Nordisk Foundation Centre for Biosustainability, Technical University of Denmark, Lyngby, Denmark
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3
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Lwin TN, Mudannayake R, MacDonald S, Arrowsmith JE, Burt C, Besser M, Falter F. Assessing the impact of different heparin dosing regimens for cardiopulmonary bypass on anticoagulation: the HepDOSE pilot study. Can J Anaesth 2024; 71:234-243. [PMID: 37985627 DOI: 10.1007/s12630-023-02645-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 07/11/2023] [Accepted: 07/23/2023] [Indexed: 11/22/2023] Open
Abstract
PURPOSE It has been suggested that a larger heparin dose during cardiopulmonary bypass (CPB) is associated with reduced perioperative coagulopathy and thromboembolic complications. We investigated the effect of different heparin doses during routine elective cardiac surgery. Our primary outcomes include blood loss and transfusion and secondary outcomes investigate the effects on coagulation biomarkers. METHODS In this prospective pilot trial, we allocated 60 patients undergoing cardiac surgery on CPB in a single tertiary cardiac centre into three groups to receive an initial dose of 300, 400, or 500 units (U) per kilogram of intravenous heparin prior to the commencement of CPB. Blood was sampled after induction of anesthesia, at 30 and 60 min of CPB, and three minutes after heparin reversal with protamine. Samples were analyzed for fibrinopeptide A (FPA), fibrinopeptide B (FPB), D-dimer, and thrombin-antithrombin (TAT) complexes. Postoperative blood loss and transfusion was measured for the first 24-hr period after surgery. RESULTS The total mean (95% CI) administered heparin dose in the 300 U·kg-1, 400 U·kg-1, and 500 U·kg-1 groups were 39,975 (36,528 to 43,421) U, 43,195 (36,940 to 49,449) U and 47,900 (44,807 to 50,992) U, respectively. There were no statistically significant differences in FPA, FPB or D-dimer levels at the measured time intervals. There was a trend towards lower TAT levels while on CPB with greater heparin dosing, which was statistically significant after the administration of protamine. The clinical significance appears to be negligible, as there is no difference in overall blood loss and amount of packed red blood cell transfusion or other blood product transfusion. CONCLUSION This pilot study indicates that, while larger heparin dosing for routine cardiac surgery results in subtle biochemical changes in coagulation, there is no demonstrable benefit in postoperative blood loss or transfusion requirements.
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Affiliation(s)
- Thar Nyan Lwin
- Department of Anaesthesia and Intensive Care, Royal Papworth Hospital NHS Foundation Trust, Cambridge, UK
| | - Rahul Mudannayake
- Department of Anaesthesia and Intensive Care, Royal Papworth Hospital NHS Foundation Trust, Cambridge, UK
| | - Stephen MacDonald
- Division of Clinical Haematology and Blood Transfusion, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Joseph E Arrowsmith
- Department of Anaesthesia and Intensive Care, Royal Papworth Hospital NHS Foundation Trust, Cambridge, UK
| | - Christiana Burt
- Department of Anaesthesia and Intensive Care, Royal Papworth Hospital NHS Foundation Trust, Cambridge, UK
| | - Martin Besser
- Division of Clinical Haematology and Blood Transfusion, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Florian Falter
- Department of Anaesthesia and Intensive Care, Royal Papworth Hospital NHS Foundation Trust, Cambridge, UK.
- Department of Anaesthetics and Critical Care, The Royal Papworth Hospital NHS Foundation Trust, Papworth Road, Cambridge Biomedical Campus, Cambridge, CB2 0AY, UK.
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Siddiqui F, Tafur A, Darki A, Kantarcioglu B, Hoppensteadt D, Krupa E, Iqbal O, Fareed J, Monreal M. Decreased Thrombin Generation is Associated with Increased Thrombin Generation Biomarkers and Blood Cellular Indices in Pulmonary Embolism. Clin Appl Thromb Hemost 2024; 30:10760296241261076. [PMID: 39043231 PMCID: PMC11271111 DOI: 10.1177/10760296241261076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Revised: 05/24/2024] [Accepted: 05/25/2024] [Indexed: 07/25/2024] Open
Abstract
Pulmonary embolism (PE) is a heterogenous condition with variable clinical presentations. Thrombin generation potential (TGP) and biomarkers, and blood cellular indices can reflect the underlying pathophysiology and risk stratification of PE. This case-control study analyzed TGP in 209 PE patients from Loyola University, Pulmonary Embolism Response Team program compared to normal human plasma (NHP) controls. The present study evaluates TGP and biomarkers, and cellular indices in relation to PE severity, according to the European Society of Cardiology (ESC) guidelines. Statistical analysis including median with interquartile range (IQR), 2-tailed Wilcoxon Mann-Whitney test, Chi-square test, and Spearman Correlational analysis were performed. There were 209 patients with PE, with an almost equal distribution between sex, and a median age of 63 years. Significant downregulation in peak thrombin and endogenous thrombin potential (ETP), as well as upregulation in lag time, were observed in PE patients versus controls. Biomarker analysis revealed pronounced elevations, with D-dimer demonstrating the most significant increase. Blood cellular indices also rose in PE patients, correlating with disease severity. PE severity was associated with higher TGP and biomarker levels. Mortality rates differed significantly across risk categories and were highest in patients with elevated cellular indices. TGP and biomarkers are intricately linked to PE severity and can aid in risk stratification. Elevated cellular indices are associated with increased mortality, highlighting their potential as prognostic markers. These findings could enhance the precision of PE management strategies.
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Affiliation(s)
- Fakiha Siddiqui
- PhD Program in Health Sciences, UCAM - Universidad Católica San Antonio de Murcia, Murcia, Spain
- Department of Pathology & Laboratory Medicine, Cardiovascular Research Institute, Health Science Division, Loyola University Chicago, Maywood, Illinois, USA
| | - Alfonso Tafur
- Department of Medicine and Vascular Medicine, Evanston NorthShore University Health System, Evanston, Illinois, USA
- University of Chicago, Pritzker School of Medicine, Chicago, IL, USA
| | - Amir Darki
- Department of Cardiology, Health Science Division, Cardiovascular Research Institute, Loyola University Chicago, Maywood, Illinois, USA
| | - Bulent Kantarcioglu
- Department of Pathology & Laboratory Medicine, Cardiovascular Research Institute, Health Science Division, Loyola University Chicago, Maywood, Illinois, USA
| | - Debra Hoppensteadt
- Department of Pathology & Laboratory Medicine, and Department of Pharmacology and Neuroscience, Health Science Division, Cardiovascular Research Institute, Loyola University Chicago, Maywood, Illinois, USA
| | - Emily Krupa
- Department of Pathology & Laboratory Medicine, Cardiovascular Research Institute, Health Science Division, Loyola University Chicago, Maywood, Illinois, USA
| | - Omer Iqbal
- Department of Pathology & Laboratory Medicine, Cardiovascular Research Institute, Health Science Division, Loyola University Chicago, Maywood, Illinois, USA
| | - Jawed Fareed
- Department of Pathology & Laboratory Medicine, and Department of Pharmacology and Neuroscience, Health Science Division, Cardiovascular Research Institute, Loyola University Chicago, Maywood, Illinois, USA
| | - Manuel Monreal
- Department of Internal Medicine, Hospital Universitari Germans Trias i Pujol, Badalona, Barcelona, Spain
- Chair for the Study of Thromboembolic Disease, Faculty of Health Sciences, UCAM Universidad Católica San Antonio de Murcia, Murcia, Spain
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5
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Gao C, Bao B, Bao C, Wu W. Fungi Fibrinolytic Compound 1 Plays a Core Role in Modulating Fibrinolysis, Altering Plasma Clot Structure, and Promoting Susceptibility to Lysis. Pharmaceutics 2023; 15:2320. [PMID: 37765289 PMCID: PMC10536852 DOI: 10.3390/pharmaceutics15092320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 08/29/2023] [Accepted: 08/29/2023] [Indexed: 09/29/2023] Open
Abstract
Fibrin clot structure and function are major determinants of venous and arterial thromboembolic diseases, as well as the key determinants of the efficiency of clot lysis. Studies have revealed that fungi fibrinolytic compound 1 (FGFC1) is a novel marine pyranisoindolone natural product with fibrinolytic activity. Here, we explore the impacts of FGFC1 on clot structure, lysis, and plasminogen activation in vitro using turbidimetric, enzyme-linked immunosorbent assay, confocal and electron microscopy, urokinase, or plasmin chromogenic substrate. Clots formed in the presence of FGFC1 expressed reduced fibrin polymerization rate and maximum turbidity; however, they did not influence the lag phase of fibrin polymerization. In the absence of scu-PA (single-chain urokinase plasminogen activator), microscopy revealed that FGFC1 increased the number of protofibrils within fibrin fiber and the pore diameter between protofibrils, inducing clots to form a region of thinner and looser networks separated by large pores. The effects of FGFC1 on scu-PA-mediated plasma clot structure were similar to those in the absence of scu-PA. In addition, FGFC1 promoted the lysis of clots and increased the D-dimer concentration in lysate. FGFC1 increased the generation rate of p-nitroaniline in plasma. These results show that FGFC1 has fibrinolytic activity in plasma, leading to interference with the release of fibrinopeptide B to affect lateral aggregation of protofibrils and increase clot susceptibility to fibrinolysis by altering its structure.
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Affiliation(s)
- Chunli Gao
- Department of Marine Bio-Pharmacology, College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China; (C.G.)
| | - Bin Bao
- Department of Marine Bio-Pharmacology, College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China; (C.G.)
- Shanghai Engineering Research Center of Aquatic-Product Processing and Preservation, Shanghai 201306, China
| | - Chunling Bao
- The Sixth People’s Hospital Affiliated, Shanghai Jiao Tong University, Shanghai 201306, China
| | - Wenhui Wu
- Department of Marine Bio-Pharmacology, College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China; (C.G.)
- Putuo Sub-Center of International Joint Research Center for Marine Biological Sciences, Zhongke Road, Putuo District, Zhoushan 316104, China
- Marine Biomedical Science and Technology Innovation Platform of Lin-gang Special Area, Lane 218, Haiji Sixth Road, Shanghai 201306, China
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6
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Angelidakis E, Chen S, Zhang S, Wan Z, Kamm RD, Shelton SE. Impact of Fibrinogen, Fibrin Thrombi, and Thrombin on Cancer Cell Extravasation Using In Vitro Microvascular Networks. Adv Healthc Mater 2023; 12:e2202984. [PMID: 37119127 PMCID: PMC10524192 DOI: 10.1002/adhm.202202984] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 04/25/2023] [Indexed: 04/30/2023]
Abstract
A bidirectional association exists between metastatic dissemination and the hypercoagulable state associated with many types of cancer. As such, clinical studies have provided evidence that markers associated with elevated levels of coagulation and fibrinolysis correlate with decreased patient survival. However, elucidating the mechanisms underpinning the effects of different components of the coagulation system on metastasis formation is challenging both in animal models and 2D models lacking the complex cellular interactions necessary to model both thrombosis and metastasis. Here, an in vitro, 3D, microvascular model for observing the formation of fibrin thrombi is described, which is in turn used to study how different aspects of the hypercoagulable state associated with cancer affect the endothelium. Using this platform, cancer cells expressing ICAM-1 are shown to form a fibrinogen-dependent bridge and transmigrate through the endothelium more effectively. Cancer cells are also demonstrated to interact with fibrin thrombi, using them to adhere, spread, and enhance their extravasation efficiency. Finally, thrombin is also shown to enhance cancer cell extravasation. This system presents a physiologically relevant model of fibrin clot formation in the human microvasculature, enabling in-depth investigation of the cellular interactions between cancer cells and the coagulation system affecting cancer cell extravasation.
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Affiliation(s)
- Emmanouil Angelidakis
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Sophia Chen
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Shun Zhang
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Zhengpeng Wan
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Roger D Kamm
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Sarah E Shelton
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Department of Medical Oncology, Dana Farber Cancer Institute, Boston, MA, 02215, USA
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7
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Turner S, Khan MA, Putrino D, Woodcock A, Kell DB, Pretorius E. Long COVID: pathophysiological factors and abnormalities of coagulation. Trends Endocrinol Metab 2023; 34:321-344. [PMID: 37080828 PMCID: PMC10113134 DOI: 10.1016/j.tem.2023.03.002] [Citation(s) in RCA: 50] [Impact Index Per Article: 50.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 03/10/2023] [Accepted: 03/14/2023] [Indexed: 04/22/2023]
Abstract
Acute COVID-19 infection is followed by prolonged symptoms in approximately one in ten cases: known as Long COVID. The disease affects ~65 million individuals worldwide. Many pathophysiological processes appear to underlie Long COVID, including viral factors (persistence, reactivation, and bacteriophagic action of SARS CoV-2); host factors (chronic inflammation, metabolic and endocrine dysregulation, immune dysregulation, and autoimmunity); and downstream impacts (tissue damage from the initial infection, tissue hypoxia, host dysbiosis, and autonomic nervous system dysfunction). These mechanisms culminate in the long-term persistence of the disorder characterized by a thrombotic endothelialitis, endothelial inflammation, hyperactivated platelets, and fibrinaloid microclots. These abnormalities of blood vessels and coagulation affect every organ system and represent a unifying pathway for the various symptoms of Long COVID.
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Affiliation(s)
- Simone Turner
- Department of Physiological Sciences, Faculty of Science, Stellenbosch University, Stellenbosch, Private Bag X1, Matieland, 7602, South Africa
| | - M Asad Khan
- North West Lung Centre, Manchester University Hospitals, Manchester, M23 9LT, UK
| | - David Putrino
- Department of Rehabilitation and Human Performance, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Ashley Woodcock
- The University of Manchester, Oxford Road, Manchester, M13 9PL, UK; Manchester Academic Health Science Centre, CityLabs, Manchester, M13 9NQ, UK
| | - Douglas B Kell
- Department of Physiological Sciences, Faculty of Science, Stellenbosch University, Stellenbosch, Private Bag X1, Matieland, 7602, South Africa; Department of Biochemistry and Systems Biology, Institute of Systems, Molecular and Integrative Biology, Faculty of Health and Life Sciences, University of Liverpool, Crown St, Liverpool, L69 7ZB, UK; The Novo Nordisk Foundation Centre for Biosustainability, Building 220, Kemitorvet, Technical University of Denmark, 2800 Kongens Lyngby, Denmark.
| | - Etheresia Pretorius
- Department of Physiological Sciences, Faculty of Science, Stellenbosch University, Stellenbosch, Private Bag X1, Matieland, 7602, South Africa; Department of Biochemistry and Systems Biology, Institute of Systems, Molecular and Integrative Biology, Faculty of Health and Life Sciences, University of Liverpool, Crown St, Liverpool, L69 7ZB, UK.
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8
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Lim JE, Huang J, Weinstein SJ, Parisi D, Mӓnnistö S, Albanes D. Serum metabolomic profile of hair dye use. Sci Rep 2023; 13:3776. [PMID: 36882504 PMCID: PMC9992367 DOI: 10.1038/s41598-023-30590-3] [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: 08/07/2022] [Accepted: 02/27/2023] [Indexed: 03/09/2023] Open
Abstract
The International Agency for Research on Cancer reported that some chemicals in hair dyes are probably carcinogenic to those exposed to them occupationally. Biological mechanisms through which hair dye use may be related to human metabolism and cancer risk are not well-established. We conducted the first serum metabolomic examination comparing hair dye users and nonusers in the Alpha-Tocopherol, Beta-Carotene Cancer Prevention Study. Metabolite assays were conducted using ultrahigh performance liquid chromatography-tandem mass spectrometry. The association between metabolite levels and hair dye use was estimated using linear regression, adjusting for age, body mass index, smoking, and multiple comparisons. Among the 1,401 detected metabolites, 11 compounds differed significantly between the two groups, including four amino acids and three xenobiotics. Redox-related glutathione metabolism was heavily represented, with L-cysteinylglycine disulfide showing the strongest association with hair dye (effect size (β) = - 0.263; FDR adjusted p-value = 0.0311), along with cysteineglutathione disulfide (β = - 0.685; FDR adjusted p-value = 0.0312). 5alpha-Androstan-3alpha,17beta-diol disulfate was reduced in hair dye users (β = - 0.492; FDR adjusted p-value = 0.077). Several compounds related to antioxidation/ROS and other pathways differed significantly between hair dye users and nonusers, including metabolites previously associated with prostate cancer. Our findings suggest possible biological mechanisms through which the use of hair dye could be associated with human metabolism and cancer risk.
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Affiliation(s)
- Jung-Eun Lim
- Metabolic Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, 9609 Medical Center Drive, Bethesda, MD, 20892, USA
| | - Jiaqi Huang
- Metabolic Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, 9609 Medical Center Drive, Bethesda, MD, 20892, USA.,National Clinical Research Center for Metabolic Diseases, Key Laboratory of Diabetes Immunology, Ministry of Education, and Department of Metabolism and Endocrinology, The Second Xiangya Hospital of Central South University, Changsha, 410011, Hunan, China
| | - Stephanie J Weinstein
- Metabolic Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, 9609 Medical Center Drive, Bethesda, MD, 20892, USA
| | | | - Satu Mӓnnistö
- Department of Public Health and Welfare, Finnish Institute for Health and Welfare, Helsinki, Finland
| | - Demetrius Albanes
- Metabolic Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, 9609 Medical Center Drive, Bethesda, MD, 20892, USA.
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9
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Wu J, Ngai T. In-vitro Fibrin Assembly: From the Bulk to the Interface. Curr Opin Colloid Interface Sci 2022. [DOI: 10.1016/j.cocis.2022.101661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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10
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Abstract
Intraoperative bleeding and postoperative bleeding are major surgical complications. Tissue sealants, hemostats, and adhesives provide the armamentarium for establishing hemostatic balance, including the tissue sealant fibrin. Fibrin sealants combine advantages including instantaneous effect, biocompatibility, and biodegradability. However, several challenges remain. This review summarizes current fibrin product generations and highlights new trends and potential strategies for future improvement.
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Affiliation(s)
- Matthias Beudert
- Institute of Pharmacy and Food Chemistry, Julius-Maximilians-University Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Marcus Gutmann
- Institute of Pharmacy and Food Chemistry, Julius-Maximilians-University Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Tessa Lühmann
- Institute of Pharmacy and Food Chemistry, Julius-Maximilians-University Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Lorenz Meinel
- Institute of Pharmacy and Food Chemistry, Julius-Maximilians-University Würzburg, Am Hubland, 97074 Würzburg, Germany.,Helmholtz Institute for RNA-based Infection Research, Josef-Schneider-Straße 2, 97080 Würzburg, Germany
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11
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Wang Y, Xu Y, Zhang Z, He Y, Hou Z, Zhao Z, Deng J, Qing R, Wang B, Hao S. Rational Design of High-Performance Keratin-Based Hemostatic Agents. Adv Healthc Mater 2022; 11:e2200290. [PMID: 35613419 DOI: 10.1002/adhm.202200290] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2022] [Revised: 05/17/2022] [Indexed: 12/17/2022]
Abstract
Keratins are considered ideal candidates as hemostatic agents, but the development lags far behind their potentials due to the poorly understood hemostatic mechanism and structure-function relations, owing to the composition complexity in protein extracts. Here, it is shown that by using a recombinant synthesis approach, individual types of keratins can be expressed and used for mechanism investigation and further high-performance keratin hemostatic agent design. In the comparative evaluation of full-length, rod-domain, and helical segment keratins, the α-helical contents in the sequences are identified to be directly proportional to keratins' hemostatic activities, and Tyr, Phe, and Gln residues at the N-termini of α-helices in keratins are crucial in fibrinopeptide release and fibrin polymerization. A feasible route to significantly enhance the hemostatic efficiency of helical keratins by mutating Cys to Ser in the sequences for enhanced water wettability through soluble expression is then further presented. These results provide a rational strategy to design high-efficiency keratin hemostatic agents with superior performance over clinically used gelatin sponge in multiple animal models.
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Affiliation(s)
- Yumei Wang
- Key Laboratory of Biorheological Science and Technology Ministry of Education College of Bioengineering Chongqing University Chongqing 400030 China
- Department of Nuclear Medicine Chongqing University Cancer Hospital Chongqing 400044 China
| | - Yingqian Xu
- Key Laboratory of Biorheological Science and Technology Ministry of Education College of Bioengineering Chongqing University Chongqing 400030 China
| | - Zhi Zhang
- Key Laboratory of Biorheological Science and Technology Ministry of Education College of Bioengineering Chongqing University Chongqing 400030 China
| | - Ye He
- Key Laboratory of Biorheological Science and Technology Ministry of Education College of Bioengineering Chongqing University Chongqing 400030 China
| | - Zongkun Hou
- Key Laboratory of Biorheological Science and Technology Ministry of Education College of Bioengineering Chongqing University Chongqing 400030 China
| | - Zhibin Zhao
- Key Laboratory of Biorheological Science and Technology Ministry of Education College of Bioengineering Chongqing University Chongqing 400030 China
| | - Jia Deng
- College of Environment and Resources Chongqing Technology and Business University Chongqing 400067 China
| | - Rui Qing
- School of Life Sciences and Biotechnology Shanghai Jiao Tong University Shanghai 200240 China
| | - Bochu Wang
- Key Laboratory of Biorheological Science and Technology Ministry of Education College of Bioengineering Chongqing University Chongqing 400030 China
| | - Shilei Hao
- Key Laboratory of Biorheological Science and Technology Ministry of Education College of Bioengineering Chongqing University Chongqing 400030 China
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12
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Abstract
Thrombin is a multifunctional serine protease generated in injured cells. The generation of thrombin in coagulation plays a central role in the functioning of haemostasis. The last enzyme in the coagulation cascade is thrombin, with the function of cleaving fibrinogen to fibrin, which forms the fibrin clot of a haemostatic plug. Although thrombin primarily converts fibrinogen to fibrin, it also has many other positive regulatory effects on coagulation. Thrombin has procoagulant, inflammatory, cellular proliferation and anticoagulant effects. In coagulation system, thrombin has two very distinct roles. Firstly, it acts as a procoagulant when it converts fibrinogen into an insoluble fibrin clot, activates factor (F) XIII, activates thrombin activatable fibrinolysis inhibitor (TAFI) and activates FV, FVIII and FXI. Thrombin also enhances platelet adhesion by inactivating a disintegrin and metalloprotease with thrombospondin type1 motif (ADAMTS13). However, when thrombin activates protein C, it acts as an anticoagulant. A natural anticoagulant pathway that supplies regulation of the blood coagulation system contains protein C, which is the key component. This is accomplished by the specific proteolytic inactivation of FV and FVIII. In this review, the multiple roles of thrombin in the haemostatic response to injury are studied in addition to the cofactors that determine thrombin activity and how thrombin activity is thought to be coordinated.
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Fibrinogen Concentrations in Liquid PRF Using Various Centrifugation Protocols. Molecules 2022; 27:molecules27072043. [PMID: 35408442 PMCID: PMC9000261 DOI: 10.3390/molecules27072043] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 03/18/2022] [Accepted: 03/18/2022] [Indexed: 02/06/2023] Open
Abstract
Liquid platelet-rich fibrin (PRF) is produced by fractionation of blood without additives that initiate coagulation. Even though liquid PRF is frequently utilized as a natural source of fibrinogen to prepare sticky bone, the concentration of fibrinogen and the overall amount of "clottable PRF" components have not been evaluated. To this aim, we prepared liquid PRF at 300, 700, and 2000 relative centrifugal force (RCF), for 8 min and quantified the fibrinogen levels by immunoassay. We report here that, independent of the RCF, the fibrinogen concentration is higher in the platelet-poor plasma (PPP) compared to the buffy coat (BC) fraction of liquid PRF and further decreases in the remaining red fraction. We then determined the weight of the clotted PRF fractions before and after removing the serum. The PPP and BC fractions consist of 10.2% and 25.3% clottable matrix suggesting that more than half of the weight of clottable BC is caused by cellular components. Our data provide insights into the distribution of fibrinogen in the different fractions of liquid PRF. These findings suggest that PPP is the main source of clottable fibrinogen, while the BC is more a cell source when it comes to the preparation of sticky bone.
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Maly M, Riedel T, Stikarova J, Suttnar J, Kotlin R, Hajsl M, Tousek P, Kaufmanova J, Kucerka O, Weisel JW, Dyr JE. Incorporation of Fibrin, Platelets, and Red Blood Cells into a Coronary Thrombus in Time and Space. Thromb Haemost 2021; 122:434-444. [PMID: 34781375 DOI: 10.1055/s-0041-1739193] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
We describe the internal structure, spatial organization and dynamic formation of coronary artery thrombi from ST-segment elevation myocardial infarction patients. Scanning electron microscopy (SEM) revealed significant differences among four groups of patients (<2 hours; 2-6 hours; 6-12 hours, and >12 hours) related to the time of ischemia. Coronary artery thrombi from patients presenting less than 2 hours after the infarction were almost entirely composed of platelets, with small amounts of fibrin and red blood cells. In contrast, thrombi from late presenters (>12 hours) consisted of mainly platelets at the distal end, where clotting was initiated, with almost no platelets at the proximal end, while the red blood cell content went from low at the initiating end to more than 90% at the proximal end. Furthermore, fibrin was present mainly on the outside of the thrombi and older thrombi contained thicker fibers. The red blood cells in late thrombi were compressed to a close-packed, tessellated array of polyhedral structures, called polyhedrocytes. Moreover, there was redistribution from the originally homogeneous composition to fibrin and platelets to the outside, with polyhedrocytes on the interior. The presence of polyhedrocytes and the redistribution of components are signs of in vivo clot contraction (or retraction). These results suggest why later thrombi are resistant to fibrinolytic agents and other treatment modalities, since the close-packed polyhedrocytes form a nearly impermeable seal. Furthermore, it is of particular clinical significance that these findings suggest specific disparate therapies that will be most effective at different stages of thrombus development.
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Affiliation(s)
- Martin Maly
- First Faculty of Medicine, Department of Medicine, Charles University in Prague and Military University Hospital, Prague, Czech Republic
| | - Tomas Riedel
- Department of Biochemistry, Institute of Hematology and Blood Transfusion, Prague, Czech Republic.,Chemistry and Physics of Surfaces and Biointerfaces, Institute of Macromolecular Chemistry, Czech Academy of Sciences, Prague, Czech Republic
| | - Jana Stikarova
- Department of Biochemistry, Institute of Hematology and Blood Transfusion, Prague, Czech Republic
| | - Jiri Suttnar
- Department of Biochemistry, Institute of Hematology and Blood Transfusion, Prague, Czech Republic
| | - Roman Kotlin
- Department of Biochemistry, Institute of Hematology and Blood Transfusion, Prague, Czech Republic
| | - Martin Hajsl
- First Faculty of Medicine, Department of Medicine, Charles University in Prague and Military University Hospital, Prague, Czech Republic
| | - Petr Tousek
- Cardiocenter, University Hospital Kralovske Vinohrady and Third Medical Faculty, Charles University, Prague, Czech Republic
| | - Jirina Kaufmanova
- Department of Biochemistry, Institute of Hematology and Blood Transfusion, Prague, Czech Republic.,Department of Biochemistry and Microbiology, University of Chemistry and Technology Prague, Prague, Czech Republic
| | - Ondrej Kucerka
- First Faculty of Medicine, Department of Medicine, Charles University in Prague and Military University Hospital, Prague, Czech Republic
| | - John W Weisel
- Department of Cell and Developmental Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States
| | - Jan E Dyr
- Department of Biochemistry, Institute of Hematology and Blood Transfusion, Prague, Czech Republic
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15
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Gayen P, Jan S, Chowdhury N, Ghosh S, Hembram M, Bagchi A, Sinha Roy R. Engineered Bio-inspired Multifunctional Peptide- and Protein-based Therapeutic Biomolecules for Better Wound Care. Chem Asian J 2021; 16:4018-4036. [PMID: 34643055 DOI: 10.1002/asia.202101022] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 10/06/2021] [Indexed: 11/11/2022]
Abstract
Developing non-immunogenic therapeutic biomolecules for facilitating blood clotting followed by wound healing via therapeutic angiogenesis, still remains a formidable challenge. Excessive blood loss of accident victims and battalions cause a huge number of deaths worldwide. Patients with inherited bleeding disorders face acute complications during injury and post-surgery. Biologically-inspired peptide-based hemostat can act as a potential therapeutic for handling coagulopathy. Additionally, non-healing wounds for patients having ischemic diseases can cause severe clinical complications. Advancement in stabilized growth-factor-based proangiogenic therapy may offer effective possibilities for the treatment of ischemic pathology. This review will discuss nature-inspired biocompatible stabilized peptide- and protein-based molecular medicines to serve unmet medical challenges for handling traumatic coagulopathy and impaired wound healing.
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Affiliation(s)
- Paramita Gayen
- Department of Biological Sciences, Indian Institute of Science Education and Research Kolkata, 741246, Mohanpur, India
| | - Somnath Jan
- Department of Biological Sciences, Indian Institute of Science Education and Research Kolkata, 741246, Mohanpur, India
| | - Nilkanta Chowdhury
- Department of Biochemistry and Biophysics, University of Kalyani, Kalyani, 741235, Nadia, West Bengal, India
| | - Snehasish Ghosh
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, 741246, Mohanpur, India
| | - Monjuri Hembram
- Department of Biological Sciences, Indian Institute of Science Education and Research Kolkata, 741246, Mohanpur, India
| | - Angshuman Bagchi
- Department of Biochemistry and Biophysics, University of Kalyani, Kalyani, 741235, Nadia, West Bengal, India
| | - Rituparna Sinha Roy
- Department of Biological Sciences, Indian Institute of Science Education and Research Kolkata, 741246, Mohanpur, India.,Centre for Advanced Functional Materials, Indian Institute of Science Education and Research Kolkata, 741246, Mohanpur, India.,Centre for Climate and Environmental Studies, Indian Institute of Science Education and Research Kolkata, 741246, Mohanpur, India
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16
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Mohamed E, Coupland LA, Crispin PJ, Fitzgerald A, Nisbet DR, Tsuzuki T. Non-oxidized cellulose nanofibers as a topical hemostat: In vitro thromboelastometry studies of structure vs function. Carbohydr Polym 2021; 265:118043. [PMID: 33966826 DOI: 10.1016/j.carbpol.2021.118043] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 03/24/2021] [Accepted: 04/03/2021] [Indexed: 12/12/2022]
Abstract
Hemorrhage remains a significant cause of morbidity and mortality following trauma and during complex surgeries. A variety of nanomaterials, including oxidized cellulose nanofibers (OCNFs), have been studied to overcome the disadvantages of current commercial topical hemostats. However, the relationship between nano-structural characteristics and hemostatic efficacy of non-oxidized cellulose nanofibers (CNFs) has not been elucidated. Herein, we present the first report of the correlation between structure and hemostatic performance of CNFs. In vitro thromboelastometry studies on CNFs, synthesized by ball-milling, showed that there is an optimum balance point between the aspect ratio (AR) and specific surface area (SSA) of nanofibers in terms of their maximum contribution to platelet function and plasma coagulation. The optimized CNFs with high SSA (17 m2/g) and a high AR (166) shortened normal whole blood clotting time by 68 %, outperforming cellulose-based hemostats. Additionally, CNFs reduced clotting time in platelet-deficient blood (by 80 %) and heparinized blood (by 54 %).
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Affiliation(s)
- Elmira Mohamed
- Research School of Electrical, Energy and Materials Engineering, College of Engineering and Computer Science, The Australian National University, Canberra, ACT, Australia.
| | - Lucy A Coupland
- ACRF Department of Cancer Biology and Therapeutics, The John Curtin School of Medical Research, The Australian National University, Canberra, ACT, Australia.
| | - Philip J Crispin
- ACRF Department of Cancer Biology and Therapeutics, The John Curtin School of Medical Research, The Australian National University, Canberra, ACT, Australia; Hematology Department, The Canberra Hospital, Canberra, ACT, Australia.
| | | | - David R Nisbet
- ACRF Department of Cancer Biology and Therapeutics, The John Curtin School of Medical Research, The Australian National University, Canberra, ACT, Australia; Research School of Chemistry, The Australian National University, Canberra, ACT, Australia.
| | - Takuya Tsuzuki
- Research School of Electrical, Energy and Materials Engineering, College of Engineering and Computer Science, The Australian National University, Canberra, ACT, Australia.
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17
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Galanakis DK, Protopopova A, Zhang L, Li K, Marmorat C, Scheiner T, Koo J, Savitt AG, Rafailovich M, Weisel J. Fibers Generated by Plasma Des-AA Fibrin Monomers and Protofibril/Fibrinogen Clusters Bind Platelets: Clinical and Nonclinical Implications. TH OPEN 2021; 5:e273-e285. [PMID: 34240000 PMCID: PMC8260279 DOI: 10.1055/s-0041-1725976] [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] [Received: 10/21/2020] [Accepted: 01/26/2021] [Indexed: 12/31/2022] Open
Abstract
Objective Soluble fibrin (SF) is a substantial component of plasma fibrinogen (fg), but its composition, functions, and clinical relevance remain unclear. The study aimed to evaluate the molecular composition and procoagulant function(s) of SF. Materials and Methods Cryoprecipitable, SF-rich (FR) and cryosoluble, SF-depleted (FD) fg isolates were prepared and adsorbed on one hydrophilic and two hydrophobic surfaces and scanned by atomic force microscopy (AFM). Standard procedures were used for fibrin polymerization, crosslinking by factor XIII, electrophoresis, and platelet adhesion. Results Relative to FD fg, thrombin-induced polymerization of FR fg was accelerated and that induced by reptilase was markedly delayed, attributable to its decreased (fibrinopeptide A) FpA. FR fg adsorption to each surface yielded polymeric clusters and co-cryoprecipitable solitary monomers. Cluster components were crosslinked by factor XIII and comprised ≤21% of FR fg. In contrast to FD fg, FR fg adsorption on hydrophobic surfaces resulted in fiber generation enabled by both clusters and solitary monomers. This began with numerous short protofibrils, which following prolonged adsorption increased in number and length and culminated in surface-linked three-dimensional fiber networks that bound platelets. Conclusion The abundance of adsorbed protofibrils resulted from (1) protofibril/fg clusters whose fg was dissociated during adsorption, and (2) adsorbed des-AA monomers that attracted solution counterparts initiating protofibril assembly and elongation by their continued incorporation. The substantial presence of both components in transfused plasma and cryoprecipitate augments hemostasis by accelerating thrombin-induced fibrin polymerization and by tightly anchoring the resulting clot to the underlying wound or to other abnormal vascular surfaces.
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Affiliation(s)
- Dennis K Galanakis
- Department of Pathology, Stony Brook University School of Medicine, Stony Brook, New York
| | - Anna Protopopova
- Department of Cell and Developmental Biology, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania
| | - Liudi Zhang
- Department of Materials Science and Engineering, Stony Brook University, Stony Brook, New York
| | - Kao Li
- Department of Materials Science and Engineering, Stony Brook University, Stony Brook, New York
| | - Clement Marmorat
- Department of Materials Science and Engineering, Stony Brook University, Stony Brook, New York
| | - Tomas Scheiner
- Department of Cell and Developmental Biology, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania
| | - Jaseung Koo
- Department of Materials Science and Engineering, Stony Brook University, Stony Brook, New York
| | - Anne G Savitt
- Department of Microbiology and Immunology, Stony Brook University School of Medicine, Stony Brook, New York
| | - Miriam Rafailovich
- Department of Materials Science and Engineering, Stony Brook University, Stony Brook, New York
| | - John Weisel
- Department of Cell and Developmental Biology, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania
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Nandi S, Mihalko E, Nellenbach K, Castaneda M, Schneible J, Harp M, Deal H, Daniele M, Menegatti S, Barker TH, Brown AC. Synthetic platelet microgels containing fibrin knob B mimetic motifs enhance clotting responses. ADVANCED THERAPEUTICS 2021; 4:2100010. [PMID: 34095458 PMCID: PMC8171167 DOI: 10.1002/adtp.202100010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Indexed: 01/18/2023]
Abstract
Native platelets are crucial players in wound healing. Key to their role is the ability of their surface receptor GPIIb/IIIa to bind fibrin at injury sites, thereby promoting clotting. When platelet activity is impaired as a result of traumatic injury or certain diseases, uncontrolled bleeding can result. To aid clotting and tissue repair in cases of poor platelet activity, our lab has previously developed synthetic platelet-like particles capable of promoting clotting and improving wound healing responses. These are constructed by functionalizing highly deformable hydrogel microparticles (microgels) with fibrin-binding ligands including a fibrin-specific whole antibody or a single-domain variable fragment. To improve the translational potential of these clotting materials, we explored the use of fibrin-binding peptides as cost-effective, robust, high-specificity alternatives to antibodies. Herein, we present the development and characterization of soft microgels decorated with the peptide AHRPYAAK that mimics fibrin knob 'B' and targets fibrin hole 'b'. These "Fibrin-Affine Microgels with Clotting Yield" (FAMCY) were found to significantly increase clot density in vitro and decrease bleeding in a rodent trauma model in vivo. These results indicate that FAMCYs are capable of recapitulating the platelet-mimetic properties of previous designs while utilizing a less costly, more translational design.
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Affiliation(s)
- Seema Nandi
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill/North Carolina State University, Raleigh, NC, USA
- Comparative Medicine Institute, North Carolina State University, Raleigh, NC, USA
| | - Emily Mihalko
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill/North Carolina State University, Raleigh, NC, USA
- Comparative Medicine Institute, North Carolina State University, Raleigh, NC, USA
| | - Kimberly Nellenbach
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill/North Carolina State University, Raleigh, NC, USA
- Comparative Medicine Institute, North Carolina State University, Raleigh, NC, USA
| | - Mario Castaneda
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill/North Carolina State University, Raleigh, NC, USA
| | - John Schneible
- Department of Electrical & Computer Engineering, North Carolina State University, Raleigh, NC, USA
| | - Mary Harp
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, NC, USA
| | - Halston Deal
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill/North Carolina State University, Raleigh, NC, USA
- Comparative Medicine Institute, North Carolina State University, Raleigh, NC, USA
| | - Michael Daniele
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill/North Carolina State University, Raleigh, NC, USA
- Comparative Medicine Institute, North Carolina State University, Raleigh, NC, USA
- Department of Electrical & Computer Engineering, North Carolina State University, Raleigh, NC, USA
| | - Stefano Menegatti
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, NC, USA
| | - Thomas H. Barker
- Biomedical Engineering, Department of Cell Biology, School of Medicine, University of Virginia, Charlottesville, VA, USA
| | - Ashley C. Brown
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill/North Carolina State University, Raleigh, NC, USA
- Comparative Medicine Institute, North Carolina State University, Raleigh, NC, USA
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Ghosh S, Tripathi A, Gayen P, Sinha Roy R. Peptide-based topical agents and intravenous hemostat for rapid hemostasis. RSC Med Chem 2020; 11:1100-1111. [PMID: 33479616 PMCID: PMC7651999 DOI: 10.1039/d0md00204f] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Accepted: 09/14/2020] [Indexed: 01/25/2023] Open
Abstract
Traumatic coagulopathy due to severe external injury and internal hemorrhage is life-threatening to accident victims and soldiers on the battlefield, causing considerable number of deaths worldwide. Patients with inherited bleeding disorders (such as haemophilia, von Willebrand disease, inherited qualitative platelet defects, and afibrinogenemia) also contribute to the vast number of deaths due to abnormal bleeding, and these patients are difficult to handle during surgery. Platelets and different plasma proteins play an essential role in blood coagulation and in the maintenance of the body's hemostatic balance. The improper function or deficiency of these factors cause abnormal bleeding. To address such bleeding disorders, external clotting agents (such as extracellular protein-inspired natural and synthetic peptide-based sealants and peptide-functionalized polymer/liposome-based sealants) have been developed by different groups of researchers. The primary focus of this review is to provide molecular insights into the existing biologically inspired peptide-based sealants, highlighting the advantages and limitations of such reported designed sealants to handle blood clotting, and also provide insights into the design of improved next-generation surgical sealants.
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Affiliation(s)
- Snehasish Ghosh
- Department of Chemical Sciences , Indian Institute of Science Education and Research Kolkata , Mohanpur - 741246 , India
| | - Archana Tripathi
- Department of Biological Sciences , Indian Institute of Science Education and Research Kolkata , Mohanpur - 741246 , India .
| | - Paramita Gayen
- Department of Biological Sciences , Indian Institute of Science Education and Research Kolkata , Mohanpur - 741246 , India .
| | - Rituparna Sinha Roy
- Department of Biological Sciences , Indian Institute of Science Education and Research Kolkata , Mohanpur - 741246 , India .
- Centre for Advanced Functional Materials , Indian Institute of Science Education and Research Kolkata , Mohanpur - 741246 , India
- Centre for Climate and Environmental Studies , Indian Institute of Science Education and Research Kolkata , Mohanpur - 741246 , India
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Genetic Variants in the FGB and FGG Genes Mapping in the Beta and Gamma Nodules of the Fibrinogen Molecule in Congenital Quantitative Fibrinogen Disorders Associated with a Thrombotic Phenotype. Int J Mol Sci 2020; 21:ijms21134616. [PMID: 32610551 PMCID: PMC7369898 DOI: 10.3390/ijms21134616] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 06/18/2020] [Accepted: 06/25/2020] [Indexed: 12/19/2022] Open
Abstract
Fibrinogen is a hexameric plasmatic glycoprotein composed of pairs of three chains (Aα, Bβ, and γ), which play an essential role in hemostasis. Conversion of fibrinogen to insoluble polymer fibrin gives structural stability, strength, and adhesive surfaces for growing blood clots. Equally important, the exposure of its non-substrate thrombin-binding sites after fibrin clot formation promotes antithrombotic properties. Fibrinogen and fibrin have a major role in multiple biological processes in addition to hemostasis and thrombosis, i.e., fibrinolysis (during which the fibrin clot is broken down), matrix physiology (by interacting with factor XIII, plasminogen, vitronectin, and fibronectin), wound healing, inflammation, infection, cell interaction, angiogenesis, tumour growth, and metastasis. Congenital fibrinogen deficiencies are rare bleeding disorders, characterized by extensive genetic heterogeneity in all the three genes: FGA, FGB, and FGG (enconding the Aα, Bβ, and γ chain, respectively). Depending on the type and site of mutations, congenital defects of fibrinogen can result in variable clinical manifestations, which range from asymptomatic conditions to the life-threatening bleeds or even thromboembolic events. In this manuscript, we will briefly review the main pathogenic mechanisms and risk factors leading to thrombosis, and we will specifically focus on molecular mechanisms associated with mutations in the C-terminal end of the beta and gamma chains, which are often responsible for cases of congenital afibrinogenemia and hypofibrinogenemia associated with thrombotic manifestations.
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Pérez-Escalante E, Cruz-Guerrero AE, Álvarez-Romero GA, Mendoza-Huizar LH, Flores-Aguilar JF, González-Olivares LG. Urea as the best fibrin solubilizer in the thrombin inhibition analysis: Theoretical and experimental modeling of fibrinogen denaturation. Chem Phys Lett 2020. [DOI: 10.1016/j.cplett.2020.137352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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22
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de Oliveira TM, de Lacerda JTJG, Leite GGF, Dias M, Mendes MA, Kassab P, E Silva CGS, Juliano MA, Forones NM. Label-free peptide quantification coupled with in silico mapping of proteases for identification of potential serum biomarkers in gastric adenocarcinoma patients. Clin Biochem 2020; 79:61-69. [PMID: 32097616 DOI: 10.1016/j.clinbiochem.2020.02.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Revised: 01/31/2020] [Accepted: 02/18/2020] [Indexed: 12/27/2022]
Abstract
OBJECTIVES We aimed to identify serum level variations in protein-derived peptides between patients diagnosed with gastric adenocarcinoma (GAC) and non-cancer persons (control) to detect the activity changes of proteases and explore the auxiliary diagnostic value in the context of GAC physiopathology. METHODS The label-free quantitative peptidome approach was applied to identify variants in serum levels of peptides that can differentiate GAC patients from the control group. Peptide sequences were submitted against Proteasix tool predicting proteases potentially involved in their generation. The activity change of proteases was subsequently estimated based on the peptides with significantly altered relative abundance. In turn, activity change prediction of proteases was correlated with relevant protease expression data from the literature. RESULTS A total of 191 peptide sequences generated by the cleavage of 36 precursor proteins were identified. Using the label-free quantification approach, 33 peptides were differentially quantified (adjusted fold change ≥ 1.5 and p-value < 0.05) in which 19 were up-regulated and 14 were down-regulated in GAC samples. Of these peptides, fibrinopeptide A was significantly decreased and its phosphorylated form ADpSGEGDFLAEGGGVR was upregulated in GAC samples. Activity change prediction yielded 10 proteases including 6 Matrix Metalloproteinases (MMPs), Thrombin, Plasmin, and kallikreins 4 and 14. Among predicted proteases in our analysis, MMP-7 was presented as a more promising biomarker associated with useful assays of clinical practice for GAC diagnosis. CONCLUSION Our experimental results demonstrate that the serum levels of peptides were significantly differentiated in GAC physiopathology. The hypotheses built on protease regulation could be used for further investigations to measure proteases and their activity levels that have been poorly studied for GAC diagnosis.
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Affiliation(s)
- Talita Mendes de Oliveira
- Department of Medicine, Division of Gastroenterology, Oncology Group, Federal University of São Paulo, São Paulo, SP, Brazil.
| | | | | | - Meriellen Dias
- Department of Chemical Engineering, University of São Paulo, São Paulo, SP, Brazil
| | - Maria Anita Mendes
- Department of Chemical Engineering, University of São Paulo, São Paulo, SP, Brazil
| | - Paulo Kassab
- Digestive Surgical Oncology Division, Santa Casa of São Paulo Medical School, São Paulo, SP, Brazil
| | | | | | - Nora Manoukian Forones
- Department of Medicine, Division of Gastroenterology, Oncology Group, Federal University of São Paulo, São Paulo, SP, Brazil
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Sachetto A, Mackman N. Modulation of the mammalian coagulation system by venoms and other proteins from snakes, arthropods, nematodes and insects. Thromb Res 2019; 178:145-154. [DOI: 10.1016/j.thromres.2019.04.019] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Revised: 04/04/2019] [Accepted: 04/15/2019] [Indexed: 12/22/2022]
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Diniz LCL, Miranda A, da Silva PI. Human Antimicrobial Peptide Isolated From Triatoma infestans Haemolymph, Trypanosoma cruzi-Transmitting Vector. Front Cell Infect Microbiol 2018; 8:354. [PMID: 30425969 PMCID: PMC6218679 DOI: 10.3389/fcimb.2018.00354] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Accepted: 09/18/2018] [Indexed: 01/01/2023] Open
Abstract
The importance of antimicrobial peptides (AMPs) in relation to the survival of invertebrates is well known. The source and the mode of action on the insects' immune system of these molecules have been described from different perspectives. Insects produce their own AMPs as well as obtain these molecules from various sources, for example by absorption through the intestinal tract, as previously described for Boophilus microplus. Blood-sucking barber bug Triatoma infestans attracts social, economic and medical interest owing to its role in the transmission of Chagas disease. Despite new studies, descriptions of AMPs from this insect have remained elusive. Thus, the aims of this work were to characterize the antimicrobial potential of human fibrinopeptide A (FbPA) obtained from the T. infestans haemolymph and identify its natural source. Therefore, FbPA was isolated from the T. infestans haemolymph through liquid chromatography and identified by mass spectrometry. This peptide exhibited antimicrobial activity against Micrococcus luteus. Native FbPA from human blood and the synthetic FbPA also exhibited antimicrobial activity. The synthetic FbPA was conjugated with fluorescein isothiocyanate and offered to the insects. The haemolymph collected after 72 h exhibited fluorescence at the same wavelength as fluorescein isothiocyanate. Our experiments show that beyond intrinsic AMP production, T. infestans is able to co-opt molecules via internalization and may use them as AMPs for protection.
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Affiliation(s)
- Laura Cristina Lima Diniz
- Special Laboratory of Toxinology, Butantan Institute, São Paulo, Brazil.,Post-Graduation Program Interunits in Biotechnology, USP/IPT/IBU, São Paulo, Brazil
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25
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Hedayati M, Reynolds MM, Krapf D, Kipper MJ. Nanostructured Surfaces That Mimic the Vascular Endothelial Glycocalyx Reduce Blood Protein Adsorption and Prevent Fibrin Network Formation. ACS APPLIED MATERIALS & INTERFACES 2018; 10:31892-31902. [PMID: 30156830 DOI: 10.1021/acsami.8b09435] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Blood-contacting materials are critical in many applications where long-term performance is desired. However, there are currently no engineered materials used in cardiovascular implants and devices that completely prevent clotting when in long-term contact with whole blood. The most common approach to developing next-generation blood-compatible materials is to design surface chemistries and structures that reduce or eliminate protein adsorption to prevent blood clotting. This work proposes a new paradigm for controlling protein-surface interactions by strategically mimicking key features of the glycocalyx lining the interior surfaces of blood vessels: negatively charged glycosaminoglycans organized into a polymer brush with nanoscale domains. The interactions of two important proteins from blood (albumin and fibrinogen) with these new glycocalyx mimics are revealed in detail using surface plasmon resonance and single-molecule microscopy. Surface plasmon resonance shows that these blood proteins interact reversibly with the glycocalyx mimics, but have no irreversible adsorption above the limit of detection. Single-molecule microscopy is used to compare albumin and fibrinogen interactions on surfaces with and without glycocalyx-mimetic nanostructures. Microscopy videos reveal a new mechanism whereby the glycocalyx-mimetic nanostructures eliminate the formation of fibrin networks on the surfaces. This approach shows for the first time that the nanoscale structure and organization of glycosaminoglycans in the glycocalyx are essential to (i) reduce protein adsorption, (ii) reversibly bind fibrin(ogen), and (iii) inhibit fibrin network formation on surfaces. The insights gained from this work suggest new design principles for blood-compatible surfaces. New surfaces developed using these design principles could reduce risk of catastrophic failures of blood-contacting medical devices.
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26
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Papareddy P, Kasetty G, Alyafei S, Smeds E, Salo-Ahen OMH, Hansson SR, Egesten A, Herwald H. An ecoimmunological approach to study evolutionary and ancient links between coagulation, complement and Innate immunity. Virulence 2018; 9:724-737. [PMID: 29473457 PMCID: PMC5955456 DOI: 10.1080/21505594.2018.1441589] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Coagulation, complement, and innate immunity are tightly interwoven and form an alliance that can be traced back to early eukaryotic evolution. Here we employed an ecoimmunological approach using Tissue Factor Pathway Inhibitor (TFPI)-1-derived peptides from the different classes of vertebrates (i.e. fish, reptile, bird, and mammals) and tested whether they can boost killing of various human bacterial pathogens in plasma. We found signs of species-specific conservation and diversification during evolution in these peptides that significantly impact their antibacterial activity. Though all peptides tested executed bactericidal activity in mammalian plasma (with the exception of rodents), no killing was observed in plasma from birds, reptiles, and fish, pointing to a crucial role for the classical pathway of the complement system. We also observed an interference of these peptides with the human intrinsic pathway of coagulation though, unlike complement activation, this mechanism appears not to be evolutionary conserved.
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Affiliation(s)
- Praveen Papareddy
- a Division of Infection Medicine, Department of Clinical Sciences , Lund University, Biomedical Center , Tornavägen 10, SE Lund , Sweden
| | - Gopinath Kasetty
- b Division of Respiratory Medicine and Allergology, Department of Clinical Sciences , Lund University, Biomedical Center , Tornavägen 10, SE Lund , Sweden
| | - Saud Alyafei
- a Division of Infection Medicine, Department of Clinical Sciences , Lund University, Biomedical Center , Tornavägen 10, SE Lund , Sweden
| | - Emanuel Smeds
- a Division of Infection Medicine, Department of Clinical Sciences , Lund University, Biomedical Center , Tornavägen 10, SE Lund , Sweden
| | - Outi M H Salo-Ahen
- c Pharmaceutical Sciences Laboratory, Faculty of Science and Engineering, Pharmacy, Åbo Akademi University , Tykistökatu 6A, FIN Turku , Finland.,d Structural Bioinformatics Laboratory, Faculty of Science and Engineering, Biochemistry, Åbo Akademi University , Tykistökatu 6A, FIN Turku , Finland
| | - Stefan R Hansson
- e Division of Obstetrics and Gynecology, Department of Clinical Sciences , Lund University, Biomedical Center , Tornavägen 10, SE Lund , Sweden
| | - Arne Egesten
- b Division of Respiratory Medicine and Allergology, Department of Clinical Sciences , Lund University, Biomedical Center , Tornavägen 10, SE Lund , Sweden
| | - Heiko Herwald
- a Division of Infection Medicine, Department of Clinical Sciences , Lund University, Biomedical Center , Tornavägen 10, SE Lund , Sweden
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27
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Etscheid M, Subramaniam S, Lochnit G, Zabczyk M, Undas A, Lang IM, Hanschmann KM, Kanse SM. Altered structure and function of fibrinogen after cleavage by Factor VII Activating Protease (FSAP). Biochim Biophys Acta Mol Basis Dis 2018; 1864:3397-3406. [PMID: 30076961 DOI: 10.1016/j.bbadis.2018.07.030] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Revised: 07/06/2018] [Accepted: 07/30/2018] [Indexed: 10/28/2022]
Abstract
Factor VII Activating Protease (FSAP) is a plasma protease affecting both coagulation and fibrinolysis. Although a role in hemostasis is still unclear, the identification of additional physiologic substrates will help to elucidate its role in this context. FSAP has been reported to cleave fibrinogen, but the functional consequences of this are not known. We have therefore undertaken this study to determine the implications of this cleavage for fibrin-clot formation and its lysis. Treatment of human fibrinogen with FSAP released an N-terminal peptide from the Bβ chain (Bβ1-53) and subsequently the fibrinopeptide B; within the Aα chain a partial truncation of the αC-region by multiple cleavages was seen. The truncated fibrinogen showed a delayed thrombin-catalyzed polymerization and formed fibrin clots of reduced turbidity, indicative of thinner fibrin fibers. Confocal laser scanning and scanning electron microscopy of these clots revealed a less coarse fibrin network with thinner fibers and a smaller pore size. A lower pore size was also seen in permeability studies. Unexpectedly, FSAP-treated fibrinogen or plasma exhibited a significantly faster tPA-driven lysis, which correlated exclusively with cleavage of fibrinogen and not with activation of plasminogen activators. Similar observations were also made in plasma after activation of endogenous zymogen FSAP, but not in plasma of carrier of the rare Marburg I single nucleotide polymorphism. In conclusion, altering fibrin clot properties by fibrinogenolysis is a novel function of FSAP in the vasculature, which facilitates clot lysis and may in vivo contribute to reduced fibrin deposition during thrombosis.
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Affiliation(s)
- Michael Etscheid
- Department of Haematology/Transfusion Medicine, Paul Ehrlich Institute, Langen, Germany.
| | | | - Günther Lochnit
- Department of Biochemistry, Faculty of Medicine, Justus Liebig University, Giessen, Germany
| | - Michal Zabczyk
- Institute of Cardiology, Jagiellonian University Medical College, Kraków, Poland
| | - Anetta Undas
- Institute of Cardiology, Jagiellonian University Medical College, Kraków, Poland
| | - Irene M Lang
- Department of Cardiology, Medical University of Vienna, Vienna, Austria
| | | | - Sandip M Kanse
- University of Oslo, Oslo University Hospital, Oslo, Norway
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28
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Label-free quantitative proteomics reveals fibrinopeptide B and heparin cofactor II as potential serum biomarkers in respiratory syncytial virus-infected mice treated with Qingfei oral liquid formula. Chin J Nat Med 2018; 16:241-251. [DOI: 10.1016/s1875-5364(18)30054-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2017] [Indexed: 01/28/2023]
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29
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Shiu HT, Leung PC, Ko CH. The roles of cellular and molecular components of a hematoma at early stage of bone healing. J Tissue Eng Regen Med 2018; 12:e1911-e1925. [PMID: 29207216 DOI: 10.1002/term.2622] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Revised: 10/23/2017] [Accepted: 11/22/2017] [Indexed: 12/14/2022]
Abstract
Bone healing is a complex repair process that commences with the formation of a blood clot at the injured bone, termed hematoma. It has evidenced that a lack of a stable hematoma causes delayed bone healing or non-union. The hematoma at the injured bone constitutes the early healing microenvironment. It appears to dictate healing pathways that ends in a regenerative bone. However, the hematoma is often clinically removed from the damaged site. Conversely, blood-derived products have been used in bone tissue engineering for treating critical sized defects, including fibrin gels and platelet-rich plasma. A second generation of platelet concentrate that is based on leukocyte and fibrin content has also been developed and introduced in market. Conflicting effect of these products in bone repair are reported. We propose that the bone healing response becomes dysregulated if the blood response and subsequent formation and properties of a hematoma are altered. This review focuses on the central structural, cellular, and molecular components of a fracture hematoma, with a major emphasis on their roles in regulating bone healing mechanism, and their interactions with mesenchymal stem cells. New angles towards a better understanding of these factors and relevant mechanisms involved at the beginning of bone healing may help to clarify limited or adverse effects of blood-derived products on bone repair. We emphasize that the recreation of an early hematoma niche with critical compositions might emerge as a viable therapeutic strategy for enhanced skeletal tissue engineering.
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Affiliation(s)
- Hoi Ting Shiu
- Institute of Chinese Medicine, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong.,State Key Laboratory of Phytochemistry & Plant Resources in West China, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong
| | - Ping Chung Leung
- Institute of Chinese Medicine, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong.,State Key Laboratory of Phytochemistry & Plant Resources in West China, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong
| | - Chun Hay Ko
- Institute of Chinese Medicine, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong.,State Key Laboratory of Phytochemistry & Plant Resources in West China, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong
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30
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Size exclusion chromatography (SEC-HPLC) as an alternative to study thrombin inhibition. J Chromatogr B Analyt Technol Biomed Life Sci 2018; 1074-1075:34-38. [PMID: 29329093 DOI: 10.1016/j.jchromb.2017.12.037] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Revised: 12/27/2017] [Accepted: 12/29/2017] [Indexed: 11/20/2022]
Abstract
In vitro analysis of anticoagulant compounds with a potential use as antithrombotic drugs, has been traditionally performed using techniques like spectrophotometry, turbidimetry, as well as electrochemical and clinical assays. Although, these techniques have some disadvantages such as: the inability to measure the total biological activity of thrombin, interferences and, sometimes, the quantitative determination of the inhibition ratio is not accurate. In the present work, the conversion of fibrinogen to fibrin was monitored by molecular exclusion chromatography (SEC-HPLC) in three different reaction systems. An inhibition percentage of 43.19±2.02% was obtained using heparin as an anticoagulant, in addition to the determination of the percentage of heparin bonded to thrombin. This methodology has not been previously described and has high potential for the determination of anticoagulant capacity with higher precision, the determination of thrombin's total biological activity and the quantitative determination of the inhibition ratio.
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31
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Nonuniform Internal Structure of Fibrin Fibers: Protein Density and Bond Density Strongly Decrease with Increasing Diameter. BIOMED RESEARCH INTERNATIONAL 2017; 2017:6385628. [PMID: 29130043 PMCID: PMC5654258 DOI: 10.1155/2017/6385628] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/22/2017] [Revised: 05/05/2017] [Accepted: 08/22/2017] [Indexed: 11/18/2022]
Abstract
The major structural component of a blood clot is a meshwork of fibrin fibers. It has long been thought that the internal structure of fibrin fibers is homogeneous; that is, the protein density and the bond density between protofibrils are uniform and do not depend on fiber diameter. We performed experiments to investigate the internal structure of fibrin fibers. We formed fibrin fibers with fluorescently labeled fibrinogen and determined the light intensity of a fiber, I, as a function of fiber diameter, D. The intensity and, thus, the total number of fibrin molecules in a cross-section scaled as D1.4. This means that the protein density (fibrin per cross-sectional area), ρp , is not homogeneous but instead strongly decreases with fiber diameter as D-0.6. Thinner fibers are denser than thicker fibers. We also determined Young's modulus, Y, as a function of fiber diameter. Y decreased strongly with increasing D; Y scaled as D-1.5. This implies that the bond density, ρb , also scales as D-1.5. Thinner fibers are stiffer than thicker fibers. Our data suggest that fibrin fibers have a dense, well-connected core and a sparse, loosely connected periphery. In contrast, electrospun fibrinogen fibers, used as a control, have a homogeneous cross-section.
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32
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Binder V, Bergum B, Jaisson S, Gillery P, Scavenius C, Spriet E, Nyhaug AK, Roberts HM, Chapple ILC, Hellvard A, Delaleu N, Mydel P. Impact of fibrinogen carbamylation on fibrin clot formation and stability. Thromb Haemost 2017; 117:899-910. [PMID: 28382370 PMCID: PMC5442607 DOI: 10.1160/th16-09-0704] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Accepted: 02/07/2016] [Indexed: 01/20/2023]
Abstract
Carbamylation is a non-enzymatic post-translational modification induced upon exposure of free amino groups to urea-derived cyanate leading to irreversible changes of protein charge, structure and function. Levels of carbamylated proteins increase significantly in chronic kidney disease and carbamylated albumin is considered as an important biomarker indicating mortality risk. High plasma concentrations and long half-life make fibrinogen a prime target for carbamylation. As aggregation and cross-linking of fibrin monomers rely on lysine residues, it is likely that carbamylation impacts fibrinogen processing. In this study we investigated carbamylation levels of fibrinogen from kidney disease patients as well as the impact of carbamylation on fibrinogen cleavage by thrombin, fibrin polymerisation and cross-linking in vitro. In conjunction, all these factors determine clot structure and stability and thus control biochemical and mechanical properties. LC-MS/MS analyses revealed significantly higher homocitrulline levels in patient fibrinogen than in fibrinogen isolated from control plasma. In our in vitro studies we found that although carbamylation does not affect thrombin cleavage per se, it alters fibrin polymerisation kinetics and impairs cross-linking and clot degradation. In addition, carbamylated fibrin clots had reduced fiber size and porosity associated with decreased mechanical stability. Using mass spectroscopy, we discovered that N-terminally carbamylated fibrinopeptide A was generated in this process and acted as a strong neutrophil chemoattractant potentially mediating recruitment of inflammatory cells to sites of fibrin(ogen) turnover. Taken together, carbamylation of fibrinogen seems to play a role in aberrant fibrin clot formation and might be involved in haemostatic disorders associated with chronic inflammatory diseases.
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Affiliation(s)
- Veronika Binder
- Veronika Binder, Broegelmann Research Laboratory, Department of Clinical Science, University of Bergen, The Laboratory Building, 5th floor, Bergen, Norway, Tel.: +47 55 97 46 48, Fax: +47 55 97 58 17, E-mail:
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33
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Riedelová-Reicheltová Z, Brynda E, Riedel T. Fibrin nanostructures for biomedical applications. Physiol Res 2017; 65:S263-S272. [PMID: 27762592 DOI: 10.33549/physiolres.933428] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Fibrin is a versatile biopolymer that has been extensively used in tissue engineering. In this paper fibrin nanostructures prepared using a technique based on the catalytic effect of fibrin-bound thrombin are presented. This technique enables surface-attached thin fibrin networks to form with precisely regulated morphology without the development of fibrin gel in bulk solution. Moreover, the influence of changing the polymerization time, along with the antithrombin III and heparin concentrations on the morphology of fibrin nanostructures was explored. The binding of bioactive molecules (fibronectin, laminin, collagen, VEGF, bFGF, and heparin) to fibrin nanostructures was confirmed. These nanostructures can be used for the surface modification of artificial biomaterials designed for different biomedical applications (e.g. artificial vessels, stents, heart valves, bone and cartilage constructs, skin grafts, etc.) in order to promote the therapeutic outcome.
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Affiliation(s)
- Z Riedelová-Reicheltová
- Institute of Macromolecular Chemistry of the Czech Academy of Sciences, Prague, Czech Republic.
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34
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Functional Regulation of the Plasma Protein Histidine-Rich Glycoprotein by Zn 2+ in Settings of Tissue Injury. Biomolecules 2017; 7:biom7010022. [PMID: 28257077 PMCID: PMC5372734 DOI: 10.3390/biom7010022] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Revised: 02/15/2017] [Accepted: 02/20/2017] [Indexed: 01/05/2023] Open
Abstract
Divalent metal ions are essential nutrients for all living organisms and are commonly protein-bound where they perform important roles in protein structure and function. This regulatory control from metals is observed in the relatively abundant plasma protein histidine-rich glycoprotein (HRG), which displays preferential binding to the second most abundant transition element in human systems, Zinc (Zn2+). HRG has been proposed to interact with a large number of protein ligands and has been implicated in the regulation of various physiological and pathological processes including the formation of immune complexes, apoptotic/necrotic and pathogen clearance, cell adhesion, antimicrobial activity, angiogenesis, coagulation and fibrinolysis. Interestingly, these processes are often associated with sites of tissue injury or tumour growth, where the concentration and distribution of Zn2+ is known to vary. Changes in Zn2+ levels have been shown to modify HRG function by altering its affinity for certain ligands and/or providing protection against proteolytic disassembly by serine proteases. This review focuses on the molecular interplay between HRG and Zn2+, and how Zn2+ binding modifies HRG-ligand interactions to regulate function in different settings of tissue injury.
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35
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Abstract
Fibrinogen and fibrin are essential for hemostasis and are major factors in thrombosis, wound healing, and several other biological functions and pathological conditions. The X-ray crystallographic structure of major parts of fibrin(ogen), together with computational reconstructions of missing portions and numerous biochemical and biophysical studies, have provided a wealth of data to interpret molecular mechanisms of fibrin formation, its organization, and properties. On cleavage of fibrinopeptides by thrombin, fibrinogen is converted to fibrin monomers, which interact via knobs exposed by fibrinopeptide removal in the central region, with holes always exposed at the ends of the molecules. The resulting half-staggered, double-stranded oligomers lengthen into protofibrils, which aggregate laterally to make fibers, which then branch to yield a three-dimensional network. Much is now known about the structural origins of clot mechanical properties, including changes in fiber orientation, stretching and buckling, and forced unfolding of molecular domains. Studies of congenital fibrinogen variants and post-translational modifications have increased our understanding of the structure and functions of fibrin(ogen). The fibrinolytic system, with the zymogen plasminogen binding to fibrin together with tissue-type plasminogen activator to promote activation to the active proteolytic enzyme, plasmin, results in digestion of fibrin at specific lysine residues. In spite of a great increase in our knowledge of all these interconnected processes, much about the molecular mechanisms of the biological functions of fibrin(ogen) remains unknown, including some basic aspects of clotting, fibrinolysis, and molecular origins of fibrin mechanical properties. Even less is known concerning more complex (patho)physiological implications of fibrinogen and fibrin.
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Affiliation(s)
- John W Weisel
- Department of Cell and Developmental Biology, University of Pennsylvania School of Medicine, Philadelphia, PA, USA.
| | - Rustem I Litvinov
- Department of Cell and Developmental Biology, University of Pennsylvania School of Medicine, Philadelphia, PA, USA
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36
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Swanepoel AC, Visagie A, de Lange Z, Emmerson O, Nielsen VG, Pretorius E. The clinical relevance of altered fibrinogen packaging in the presence of 17β-estradiol and progesterone. Thromb Res 2016; 146:23-34. [PMID: 27566845 DOI: 10.1016/j.thromres.2016.08.022] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2016] [Revised: 08/18/2016] [Accepted: 08/19/2016] [Indexed: 02/06/2023]
Abstract
BACKGROUND The effect of endogenous hormone concentrations, specifically 17β-estradiol and progesterone, on fibrin network formation has not been established. OBJECTIVES It is essential to understand natural hormone mechanisms since these hormones are still present in circulation while hormonal contraceptives, which are associated with increased risk of venous thromboembolism, are used. METHODS Due to the fact that these hormones are known to increase hypercoagulability and the prothrombotic state scanning electron microscopy (SEM), atomic force microscopy (AFM), thromboelastography (TEG) and turbidimetry were employed to investigate the morphology, surface roughness, viscoelastic properties and formation and lysis of fibrin. RESULTS 17β-estradiol and progesterone showed hypercoagulable viscoelastic properties and decreased the diameter and surface roughness of fibrin while increasing dense matted deposit occurrence. Our results suggest that the additional burden of hormonal load, together with the presence of endogenous estrogen and progesterone, may result in a prothrombotic and hypercoagulable state in females with an inflammatory predisposition. CONCLUSION Our results are of clinical importance when considering hormones as either pathological agent or therapeutic intervention as will be assessed in future investigation.
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Affiliation(s)
- Albe C Swanepoel
- Department of Physiology, School of Medicine, Faculty of Health Sciences, University of Pretoria, South Africa.
| | - Amcois Visagie
- Department of Physiology, School of Medicine, Faculty of Health Sciences, University of Pretoria, South Africa
| | - Zelda de Lange
- Centre of Excellence for Nutrition, North-West University, Potchefstroom, South Africa
| | - Odette Emmerson
- Department of Physiology, School of Medicine, Faculty of Health Sciences, University of Pretoria, South Africa
| | - Vance G Nielsen
- The Department of Anaesthesiology, The University of Arizona College of Medicine, Tucson, AZ, USA
| | - Etheresia Pretorius
- Department of Physiology, School of Medicine, Faculty of Health Sciences, University of Pretoria, South Africa
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37
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Wang X, Friis T, Glatt V, Crawford R, Xiao Y. Structural properties of fracture haematoma: current status and future clinical implications. J Tissue Eng Regen Med 2016; 11:2864-2875. [PMID: 27401283 DOI: 10.1002/term.2190] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2015] [Revised: 01/12/2016] [Accepted: 03/14/2016] [Indexed: 12/24/2022]
Abstract
Blood clots (haematomas) that form immediately following a bone fracture have been shown to be vital for the subsequent healing process. During the clotting process, a number of factors can influence the fibrin clot structure, such as fibrin polymerization, growth factor binding, cellular infiltration (including platelet retraction), protein concentrations and cytokines. The modulation of the fibrin clot structure within the fracture site has important clinical implications and could result in the development of multifunctional scaffolds that mimic the natural structure of a haematoma. Artificial haematoma structures such as these can be created from the patient's own blood and can therefore act as an ideal bone defect filling material for potential clinical application to accelerate bone regeneration. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Xin Wang
- Department of Spine, Affiliated Hospital of Zunyi Medical College, Zunyi, People's Republic of China.,Science and Engineering Faculty, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Australia.,Australia-China Centre for Tissue Engineering and Regenerative Medicine, Queensland University of Technology, Brisbane, Australia
| | - Thor Friis
- Science and Engineering Faculty, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Australia.,Australia-China Centre for Tissue Engineering and Regenerative Medicine, Queensland University of Technology, Brisbane, Australia
| | - Vaida Glatt
- Science and Engineering Faculty, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Australia
| | - Ross Crawford
- Science and Engineering Faculty, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Australia.,Australia-China Centre for Tissue Engineering and Regenerative Medicine, Queensland University of Technology, Brisbane, Australia
| | - Yin Xiao
- Science and Engineering Faculty, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Australia.,Australia-China Centre for Tissue Engineering and Regenerative Medicine, Queensland University of Technology, Brisbane, Australia
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38
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Vertebrate TFPI-2 C-terminal peptides exert therapeutic applications against Gram-negative infections. BMC Microbiol 2016; 16:129. [PMID: 27349742 PMCID: PMC4924314 DOI: 10.1186/s12866-016-0750-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Accepted: 06/15/2016] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND Tissue factor pathway inhibitor-2 (TFPI-2) is a serine protease inhibitor that exerts multiple physiological and patho-physiological activities involving the modulation of coagulation, angiogenesis, tumor invasion, and apoptosis. In previous studies we reported a novel role of human TFPI-2 in innate immunity by serving as a precursor for host defense peptides. Here we employed a number of TFPI-2 derived peptides from different vertebrate species and found that their antibacterial activity is evolutionary conserved although the amino acid sequence is not well conserved. We further studied the theraputic potential of one selected TFPI-2 derived peptide (mouse) in a murine sepsis model. RESULTS Hydrophobicity and net charge of many peptides play a important role in their host defence to invading bacterial pathogens. In vertebrates, the C-terminal portion of TFPI-2 consists of a highly conserved cluster of positively charged amino acids which may point to an antimicrobial activity. Thus a number of selected C-terminal TFPI-2 derived peptides from different species were synthesized and it was found that all of them exert antimicrobial activity against E. coli and P. aeruginosa. The peptide-mediated killing of E. coli was enhanced in human plasma, suggesting an involvement of the classical pathway of the complement. Under in vitro conditions the peptides displayed anti-coagulant activity by modulating the intrinsic pathway of coagulation and in vivo treatment with the mouse derived VKG24 peptide protects mice from an otherwise lethal LPS shock model. CONCLUSIONS Our results suggest that the evolutionary conserved C-terminal part of TFPI-2 is an interesting agent for the development of novel antimicrobial therapies.
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39
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Ray JC, Cho P, Dragon M, Graham CG. A Case of 5-Fluorouracil-Induced Cardiac Arrest. J Emerg Med 2016; 50:e1-6. [DOI: 10.1016/j.jemermed.2015.09.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2015] [Revised: 08/24/2015] [Accepted: 09/04/2015] [Indexed: 11/29/2022]
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Physiological implications of mammalian ferritin-binding proteins interacting with circulating ferritin and a new aspect of ferritin- and zinc-binding proteins. Biometals 2015; 29:15-24. [DOI: 10.1007/s10534-015-9897-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2015] [Accepted: 11/20/2015] [Indexed: 12/21/2022]
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41
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Analysis of the binding of bovine and human fibrinogen to ferritin: evidence that fibrinogen is a common ferritin-binding protein in mammals. Biometals 2015; 28:679-85. [DOI: 10.1007/s10534-015-9853-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2014] [Accepted: 03/30/2015] [Indexed: 10/23/2022]
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Parker TJ, Broadbent JA, McGovern JA, Broszczak DA, Parker CN, Upton Z. Provisional Matrix Deposition in Hemostasis and Venous Insufficiency: Tissue Preconditioning for Nonhealing Venous Ulcers. Adv Wound Care (New Rochelle) 2015; 4:174-191. [PMID: 25785239 PMCID: PMC4352700 DOI: 10.1089/wound.2013.0462] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2013] [Indexed: 01/07/2023] Open
Abstract
Significance: Chronic wounds represent a major burden on global healthcare systems and reduce the quality of life of those affected. Significant advances have been made in our understanding of the biochemistry of wound healing progression. However, knowledge regarding the specific molecular processes influencing chronic wound formation and persistence remains limited. Recent Advances: Generally, healing of acute wounds begins with hemostasis and the deposition of a plasma-derived provisional matrix into the wound. The deposition of plasma matrix proteins is known to occur around the microvasculature of the lower limb as a result of venous insufficiency. This appears to alter limb cutaneous tissue physiology and consequently drives the tissue into a 'preconditioned' state that negatively influences the response to wounding. Critical Issues: Processes, such as oxygen and nutrient suppression, edema, inflammatory cell trapping/extravasation, diffuse inflammation, and tissue necrosis are thought to contribute to the advent of a chronic wound. Healing of the wound then becomes difficult in the context of an internally injured limb. Thus, interventions and therapies for promoting healing of the limb is a growing area of interest. For venous ulcers, treatment using compression bandaging encourages venous return and improves healing processes within the limb, critically however, once treatment concludes ulcers often reoccur. Future Directions: Improved understanding of the composition and role of pericapillary matrix deposits in facilitating internal limb injury and subsequent development of chronic wounds will be critical for informing and enhancing current best practice therapies and preventative action in the wound care field.
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Affiliation(s)
- Tony J. Parker
- Tissue Repair and Regeneration Program, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Queensland, Australia
| | - James A. Broadbent
- Tissue Repair and Regeneration Program, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Queensland, Australia
| | - Jacqui A. McGovern
- Tissue Repair and Regeneration Program, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Queensland, Australia
| | - Daniel A. Broszczak
- Tissue Repair and Regeneration Program, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Queensland, Australia
| | - Christina N. Parker
- Institute of Health and Biomedical Innovation, School of Nursing, Queensland University of Technology, Brisbane, Queensland, Australia
| | - Zee Upton
- Tissue Repair and Regeneration Program, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Queensland, Australia
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Shiu HT, Goss B, Lutton C, Crawford R, Xiao Y. Formation of blood clot on biomaterial implants influences bone healing. TISSUE ENGINEERING PART B-REVIEWS 2014; 20:697-712. [PMID: 24906469 DOI: 10.1089/ten.teb.2013.0709] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The first step in bone healing is forming a blood clot at injured bones. During bone implantation, biomaterials unavoidably come into direct contact with blood, leading to a blood clot formation on its surface prior to bone regeneration. Despite both situations being similar in forming a blood clot at the defect site, most research in bone tissue engineering virtually ignores the important role of a blood clot in supporting healing. Dental implantology has long demonstrated that the fibrin structure and cellular content of a peri-implant clot can greatly affect osteoconduction and de novo bone formation on implant surfaces. This article reviews the formation of a blood clot during bone healing in relation to the use of platelet-rich plasma (PRP) gels. It is implicated that PRP gels are dramatically altered from a normal clot in healing, resulting in conflicting effect on bone regeneration. These results indicate that the effect of clots on bone regeneration depends on how the clots are formed. Factors that influence blood clot structure and properties in relation to bone healing are also highlighted. Such knowledge is essential for developing strategies to optimally control blood clot formation, which ultimately alter the healing microenvironment of bone. Of particular interest are modification of surface chemistry of biomaterials, which displays functional groups at varied composition for the purpose of tailoring blood coagulation activation, resultant clot fibrin architecture, rigidity, susceptibility to lysis, and growth factor release. This opens new scope of in situ blood clot modification as a promising approach in accelerating and controlling bone regeneration.
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Affiliation(s)
- Hoi Ting Shiu
- 1 Science and Engineering Faculty, Institute of Health and Biomedical Innovation, Queensland University of Technology , Brisbane, Australia
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Brown AC, Barker TH. Fibrin-based biomaterials: modulation of macroscopic properties through rational design at the molecular level. Acta Biomater 2014; 10:1502-14. [PMID: 24056097 DOI: 10.1016/j.actbio.2013.09.008] [Citation(s) in RCA: 170] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2013] [Revised: 08/14/2013] [Accepted: 09/06/2013] [Indexed: 01/06/2023]
Abstract
Fibrinogen is one of the primary components of the coagulation cascade and rapidly forms an insoluble matrix following tissue injury. In addition to its important role in hemostasis, fibrin acts as a scaffold for tissue repair and provides important cues for directing cell phenotype following injury. Because of these properties and the ease of polymerization of the material, fibrin has been widely utilized as a biomaterial for over a century. Modifying the macroscopic properties of fibrin, such as elasticity and porosity, has been somewhat elusive until recently, yet with a molecular-level rational design approach it can now be somewhat easily modified through alterations of molecular interactions key to the protein's polymerization process. This review outlines the biochemistry of fibrin and discusses methods for modification of molecular interactions and their application to fibrin based biomaterials.
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Bundgaard L, Jacobsen S, Sørensen MA, Sun Z, Deutsch EW, Moritz RL, Bendixen E. The Equine PeptideAtlas: a resource for developing proteomics-based veterinary research. Proteomics 2014; 14:763-73. [PMID: 24436130 DOI: 10.1002/pmic.201300398] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2013] [Revised: 12/13/2013] [Accepted: 12/15/2013] [Indexed: 11/11/2022]
Abstract
Progress in MS-based methods for veterinary research and diagnostics is lagging behind compared to the human research, and proteome data of domestic animals is still not well represented in open source data repositories. This is particularly true for the equine species. Here we present a first Equine PeptideAtlas encompassing high-resolution tandem MS analyses of 51 samples representing a selection of equine tissues and body fluids from healthy and diseased animals. The raw data were processed through the Trans-Proteomic Pipeline to yield high quality identification of proteins and peptides. The current release comprises 24 131 distinct peptides representing 2636 canonical proteins observed at false discovery rates of 0.2% at the peptide level and 1.4% at the protein level. Data from the Equine PeptideAtlas are available for experimental planning, validation of new datasets, and as a proteomic data mining resource. The advantages of the Equine PeptideAtlas are demonstrated by examples of mining the contents for information on potential and well-known equine acute phase proteins, which have extensive general interest in the veterinary clinic. The extracted information will support further analyses, and emphasizes the value of the Equine PeptideAtlas as a resource for the design of targeted quantitative proteomic studies.
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Affiliation(s)
- Louise Bundgaard
- Department of Large Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark; Department of Molecular Biology and Genetics, Faculty of Science and Technology, Aarhus University, Aarhus, Denmark
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The effect of reagents mimicking oxidative stress on fibrinogen function. ScientificWorldJournal 2013; 2013:359621. [PMID: 24235886 PMCID: PMC3818977 DOI: 10.1155/2013/359621] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2013] [Accepted: 09/02/2013] [Indexed: 01/06/2023] Open
Abstract
Fibrinogen is one of the plasma proteins most susceptible to oxidative modification. It has been suggested that modification of fibrinogen may cause thrombotic/bleeding complications associated with many pathophysiological states of organism. We exposed fibrinogen molecules to three different modification reagents-malondialdehyde, sodium hypochlorite, and peroxynitrite-that are presented to various degrees in different stages of oxidative stress. We studied the changes in fibrin network formation and platelet interactions with modified fibrinogens under flow conditions. The fastest modification of fibrinogen was caused by hypochlorite. Fibers from fibrinogen modified with either reagent were thinner in comparison with control fibers. We found that platelet dynamic adhesion was significantly lower on fibrinogen modified with malondialdehyde and significantly higher on fibrinogen modified either with hypochlorite or peroxynitrite reflecting different prothrombotic/antithrombotic properties of oxidatively modified fibrinogens. It seems that, in the complex reactions ongoing in living organisms at conditions of oxidation stress, hypochlorite modifies proteins (e.g., fibrinogen) faster and more preferentially than malondialdehyde. It suggests that the prothrombotic effects of prior fibrinogen modifications may outweigh the antithrombotic effect of malondialdehyde-modified fibrinogen in real living systems.
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Deng J, Sun M, Zhu J, Gao C. Molecular interactions of different size AuNP-COOH nanoparticles with human fibrinogen. NANOSCALE 2013; 5:8130-7. [PMID: 23884371 DOI: 10.1039/c3nr02327c] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Protein adsorption influences greatly the performance of materials used in biotechnology and biomedicine. The binding of fibrinogen (Fg) to nanoparticles (NPs) can result in protein unfolding and exposure of cryptic epitopes that subsequently interact with cell surface receptors. The response and its degree are dependent on the size, charge, and concentration of the NPs. In this study the binding kinetics of human Fg to negatively charged 11-mercaptoundecanoic acid-functionalized gold nanoparticles (AuNPs-COOH) ranging from 5.6 to 64.5 nm were examined. The larger NPs bound Fg with a larger number of proteins per square unit and a higher dissociation rate (Kd'), but with decreased affinity. By contrast, the 5.6 nm AuNPs-COOH behaved in a cooperative manner for Fg adsorption. In the presence of excess Fg, only the 64.5 nm AuNPs-COOH showed severe aggregation, whose degree was alleviated in a dilute Fg solution. The Fg is adsorbed through a side-on configuration and both side-on and end-on configurations on the smaller (5.6 and 14.2 nm) and 31.5 nm AuNPs-COOH, respectively. It also retains the native conformation. By contrast, on the 64.5 nm AuNPs-COOH the Fg adopts the end-on configuration and loses most of the secondary structure.
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Affiliation(s)
- Jun Deng
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
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Functional binding analysis of human fibrinogen as an iron- and heme-binding protein. Biometals 2013; 26:789-94. [DOI: 10.1007/s10534-013-9657-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2013] [Accepted: 07/08/2013] [Indexed: 12/12/2022]
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Filová E, Brynda E, Riedel T, Chlupáč J, Vandrovcová M, Svindrych Z, Lisá V, Houska M, Pirk J, Bačáková L. Improved adhesion and differentiation of endothelial cells on surface-attached fibrin structures containing extracellular matrix proteins. J Biomed Mater Res A 2013; 102:698-712. [PMID: 23723042 DOI: 10.1002/jbm.a.34733] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2012] [Revised: 01/07/2013] [Accepted: 01/09/2013] [Indexed: 02/04/2023]
Abstract
Currently used vascular prostheses are hydrophobic and do not allow endothelial cell (EC) adhesion and growth. The aim of this study was to prepare fibrin (Fb)-based two-dimensional (2D) and three-dimensional (3D) assemblies coated with extracellular matrix (ECM) proteins and to evaluate the EC adhesion, proliferation and differentiation on these assemblies in vitro. Coating of Fb with collagen, laminin (LM), and fibronectin (FN) was proved using the surface plasmon resonance technique. On all Fb assemblies, ECs reached higher cell densities than on polystyrene after 3 and 7 days of culture. Immunoflurescence staining showed better assembly of talin and vinculin into focal adhesion plaques, and also more apparent staining of vascular endothelial cadherin on surface-attached 3D Fb and protein-coated Fb assemblies. On these samples, ECs also contained a lower concentration of intercellular adhesion molecule-1, measured by enzyme-linked immunosorbent assay. Higher concentrations of CD31 (platelet-endothelial cell adhesion molecule-1) were found on 3D Fb coated with LM, and higher concentrations of von Willebrand factor were found on 3D Fb coated with type I collagen or LM in comparison to 2D Fb layers. The results indicate that ECM protein-coated 2D and 3D Fb assemblies can be used for versatile applications in various tissue replacements where endothelialization is desirable, for example, vascular prostheses and heart valves.
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Affiliation(s)
- Elena Filová
- Department of Biomaterials and Tissue Engineering, Institute of Physiology, Academy of Sciences of the Czech Republic, v.v.i., 142 20 Prague 4, Czech Republic
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50
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Bone healing and Mannose-Binding Lectin. Int J Surg 2013; 11:296-300. [DOI: 10.1016/j.ijsu.2013.02.022] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2012] [Revised: 02/01/2013] [Accepted: 02/25/2013] [Indexed: 11/16/2022]
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