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Pascreau T, Zia-Chahabi S, Vasse M. Letter to the editor regarding "Protein Z and Protein Z-dependent protease inhibitor in patients with acute ischemic stroke: A prospective mechanistic study". J Stroke Cerebrovasc Dis 2024; 33:107480. [PMID: 37953074 DOI: 10.1016/j.jstrokecerebrovasdis.2023.107480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Accepted: 11/07/2023] [Indexed: 11/14/2023] Open
Affiliation(s)
- Tiffany Pascreau
- Biology Department, Foch Hospital, Suresnes & Université Paris-Saclay, INSERM, Hémostase Inflammation Thrombose HITh U1176, 94276, Le Kremlin-Bicêtre, France
| | | | - Marc Vasse
- Biology Department, Foch Hospital, Suresnes & Université Paris-Saclay, INSERM, Hémostase Inflammation Thrombose HITh U1176, 94276, Le Kremlin-Bicêtre, France.
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2
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Pan J, Jin YL, Gu Y, Duan YJ, Yan H. Protein Z and Protein Z-dependent protease inhibitor in patients with acute ischemic stroke: A prospective mechanistic study. J Stroke Cerebrovasc Dis 2023; 32:107403. [PMID: 37804782 DOI: 10.1016/j.jstrokecerebrovasdis.2023.107403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 09/25/2023] [Accepted: 09/30/2023] [Indexed: 10/09/2023] Open
Abstract
OBJECTIVES Protein Z (PZ) /Protein Z-dependent protease inhibitor (ZPI) (PZ/ZPI) system is a new anticoagulant system discovered in recent years, which plays an important role in many diseases. We aimed to compare the plasma PZ/ZPI levels of acute ischemic stroke (AIS) patients and non-stroke control participants and the role of PZ/ZPI in the development of stroke was preliminarily analyzed. MATERIALS AND METHODS Enzyme linked immunosorbent assay (ELISA) was used to detect and compare plasma PZ levels of 86 patients with acute AIS and 85 non-stroke control patients. Multivariable Logistic regression was used to analyze whether PZ was an independent risk factor for AIS. RESULTS In the present study, plasma PZ is closely related to inflammatory response, coagulation process and platelet activation, and may participate in the development of AIS by inducing inflammatory responses and interfering with the coagulation process. CONCLUSIONS Our results suggested that plasma PZ level is one of the independent risk factors of AIS, and plasma ZPI was closely related to coagulation and platelet parameter and may play a role in the coagulation process during AIS.
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Affiliation(s)
- Jie Pan
- Department of Neurology, Shanghai Tenth People's Hospital, Tongji University, School of Medicine.
| | - Ying-Lei Jin
- Department of Emergency, Shanghai Tenth People's Hospital, Tongji University, School of Medicine.
| | - Ying Gu
- Department of Emergency, Shanghai Tenth People's Hospital, Tongji University, School of Medicine.
| | - Ya-Jun Duan
- Department of Emergency, Shanghai Tenth People's Hospital, Tongji University, School of Medicine.
| | - Han Yan
- Department of Neurology, Shanghai Tenth People's Hospital, Tongji University, School of Medicine.
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3
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Toomer KH, Gerber GF, Zhang Y, Daou L, Tushek M, Hooper JE, Francischetti IMB. SARS-CoV-2 infection results in upregulation of Plasminogen Activator Inhibitor-1 and Neuroserpin in the lungs, and an increase in fibrinolysis inhibitors associated with disease severity. EJHAEM 2023; 4:324-338. [PMID: 37206290 PMCID: PMC10188457 DOI: 10.1002/jha2.654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 01/14/2023] [Accepted: 01/21/2023] [Indexed: 05/21/2023]
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection results in coagulation activation although it is usually not associated with consumption coagulopathy. D-dimers are also commonly elevated despite systemic hypofibrinolysis. To understand these unusual features of coronavirus disease 2019 (COVID-19) coagulopathy, 64 adult patients with SARS-CoV-2 infection (36 moderate and 28 severe) and 16 controls were studied. We evaluated the repertoire of plasma protease inhibitors (Serpins, Kunitz, Kazal, Cystatin-like) targeting the fibrinolytic system: Plasminogen Activator Inhibitor-1 (PAI-1), Tissue Plasminogen Activator/Plasminogen Activator Inhibitor-1 complex (t-PA/PAI-1), α-2-Antiplasmin, Plasmin-α2-Antiplasmin Complex, Thrombin-activatable Fibrinolysis Inhibitor (TAFI)/TAFIa, Protease Nexin-1 (PN-1), and Neuroserpin (the main t-PA inhibitor of the central nervous system). Inhibitors of the common (Antithrombin, Thrombin-antithrombin complex, Protein Z [PZ]/PZ inhibitor, Heparin Cofactor II, and α2-Macroglobulin), Protein C ([PC], Protein C inhibitor, and Protein S), contact (Kallistatin, Protease Nexin-2/Amyloid Beta Precursor Protein, and α-1-Antitrypsin), and complement (C1-Inhibitor) pathways, in addition to Factor XIII, Histidine-rich glycoprotein (HRG) and Vaspin were also investigated by enzyme-linked immunosorbent assay. The association of these markers with disease severity was evaluated by logistic regression. Pulmonary expression of PAI-1 and Neuroserpin in the lungs from eight post-mortem cases was assessed by immunohistochemistry. Results show that six patients (10%) developed thrombotic events, and mortality was 11%. There was no significant reduction in plasma anticoagulants, in keeping with a compensated state. However, an increase in fibrinolysis inhibitors (PAI-1, Neuroserpin, PN-1, PAP, and t-PA/PAI-1) was consistently observed, while HRG was reduced. Furthermore, these markers were associated with moderate and/or severe disease. Notably, immunostains demonstrated overexpression of PAI-1 in epithelial cells, macrophages, and endothelial cells of fatal COVID-19, while Neuroserpin was found in intraalveolar macrophages only. These results imply that the lungs in SARS-CoV-2 infection provide anti-fibrinolytic activity resulting in a shift toward a local and systemic hypofibrinolytic state predisposing to (immuno)thrombosis, often in a background of compensated disseminated intravascular coagulation.
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Affiliation(s)
- Kevin H. Toomer
- Department of PathologyJohns Hopkins University School of MedicineBaltimoreMarylandUSA
| | - Gloria F. Gerber
- Division of HematologyDepartment of MedicineJohns Hopkins University School of MedicineBaltimoreMarylandUSA
| | - Yifan Zhang
- Department of BiostatisticsJohns Hopkins University Bloomberg School of Public HealthBaltimoreMarylandUSA
| | - Laetitia Daou
- Department of PathologyJohns Hopkins University School of MedicineBaltimoreMarylandUSA
| | - Michael Tushek
- Department of PathologyJohns Hopkins University School of MedicineBaltimoreMarylandUSA
| | - Jody E. Hooper
- Department of PathologyStanford University School of MedicinePalo AltoCaliforniaUSA
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4
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Coron A, Fonseca DM, Sharma A, Slupphaug G, Strand BL, Rokstad AMA. MS-proteomics provides insight into the host responses towards alginate microspheres. Mater Today Bio 2022; 17:100490. [DOI: 10.1016/j.mtbio.2022.100490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 11/08/2022] [Accepted: 11/09/2022] [Indexed: 11/13/2022] Open
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5
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Carbonnel M, Daclin C, Tourne M, Roux E, Le-Marchand M, Racowsky C, Kennel T, Farfour E, Vasse M, Ayoubi JM. Impact of COVID-19 on Subclinical Placental Thrombosis and Maternal Thrombotic Factors. J Clin Med 2022; 11:jcm11144067. [PMID: 35887831 PMCID: PMC9323982 DOI: 10.3390/jcm11144067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 07/04/2022] [Accepted: 07/09/2022] [Indexed: 02/04/2023] Open
Abstract
Background: In the context of the SARS-CoV-2 pandemic, our interest was to evaluate the effect of COVID-19 during pregnancy on placenta and coagulation factors. Methods: a prospective cohort study between January and July 2021 of 55 pregnant women stratified into: Group O, 16 patients with ongoing SARS-CoV-2 infection at delivery; Group R, 21 patients with a history of SARS-CoV-2 infection during pregnancy but who recovered prior to delivery; Group C, 18 control patients with no infection at any time. All women had nasopharyngeal SARS-CoV-2 RT-PCR tests performed within 72 h of delivery. Obstetrical complications were recorded and two physiological inhibitors of coagulation, protein Z (PZ) and dependent protease inhibitor (ZPI), were analyzed in maternal and cord blood. All placentae were analyzed by a pathologist for vascular malperfusion. Results: No patient in any group had a severe COVID-19 infection. More obstetrical complications were observed in Group O (O: n = 6/16 (37%), R: n = 2/21 (10%), C: n = 1/18 (6%), p = 0.03). The incidence of placental vascular malperfusion was similar among the groups (O: n = 9/16 (56%), R: n = 8/21 (42%), C: n = 8/18 (44%), p = 0.68). No PZ or ZPI deficiency was associated with COVID-19. However, an increased ZPI/PZ ratio was observed in neonates of Group R (O: 82.6 (min 41.3–max 743.6), R: 120.7 (29.8–203.5), C: 66.8 (28.2–2043.5), p = 0.04). Conclusion: COVID-19 was associated with more obstetrical complications, but not an increased incidence of placental lesions or PZ and ZPI abnormalities.
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Affiliation(s)
- Marie Carbonnel
- Department of Obstetrics and Gynecology, Hospital Foch, 40, Rue Worth, 92150 Suresnes, France; (C.D.); (C.R.); (J.-M.A.)
- Medical School, University of Versailles, Saint-Quentin-en-Yvelines, 55, Avenue de Paris, 78000 Versailles, France;
- Correspondence:
| | - Camille Daclin
- Department of Obstetrics and Gynecology, Hospital Foch, 40, Rue Worth, 92150 Suresnes, France; (C.D.); (C.R.); (J.-M.A.)
| | - Morgan Tourne
- Medical School, University of Versailles, Saint-Quentin-en-Yvelines, 55, Avenue de Paris, 78000 Versailles, France;
- Department of Pathology, Hospital Foch, Hospital Foch, 40, Rue Worth, 92150 Suresnes, France
| | - Emmanuel Roux
- Department of Clinic Research, Hospital Foch, 40, Rue Worth, 92150 Suresnes, France; (E.R.); (M.L.-M.); (T.K.)
| | - Mathilde Le-Marchand
- Department of Clinic Research, Hospital Foch, 40, Rue Worth, 92150 Suresnes, France; (E.R.); (M.L.-M.); (T.K.)
| | - Catherine Racowsky
- Department of Obstetrics and Gynecology, Hospital Foch, 40, Rue Worth, 92150 Suresnes, France; (C.D.); (C.R.); (J.-M.A.)
- Department of Obstetrics, Gynecology and Reproductive Biology, Brigham and Women’s Hospital, Boston, MA 02115, USA
| | - Titouan Kennel
- Department of Clinic Research, Hospital Foch, 40, Rue Worth, 92150 Suresnes, France; (E.R.); (M.L.-M.); (T.K.)
| | - Eric Farfour
- Department of Clinical Biology, Hospital Foch, 40, Rue Worth, 92150 Suresnes, France; (E.F.); (M.V.)
| | - Marc Vasse
- Department of Clinical Biology, Hospital Foch, 40, Rue Worth, 92150 Suresnes, France; (E.F.); (M.V.)
- UMR-S 1176, Institut National de la Santé et de la Recherche Médicale, Université Paris-Saclay, 94270 Le Kremlin-Bicêtre, France
| | - Jean-Marc Ayoubi
- Department of Obstetrics and Gynecology, Hospital Foch, 40, Rue Worth, 92150 Suresnes, France; (C.D.); (C.R.); (J.-M.A.)
- Medical School, University of Versailles, Saint-Quentin-en-Yvelines, 55, Avenue de Paris, 78000 Versailles, France;
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6
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Bianchini EP, Razanakolona M, Helms J, Zouiti F, Couteau-Chardon A, Marin-Esteban V, Chaisemartin LD, De-Carvalho A, Bironien R, Chollet-Martin S, Denis CV, Diehl JL, Vasse M, Meziani F, Borgel D. The Proteolytic Inactivation of Protein Z-Dependent Protease Inhibitor by Neutrophil Elastase Might Promote the Procoagulant Activity of Neutrophil Extracellular Traps in Sepsis. Thromb Haemost 2022; 122:506-516. [PMID: 34134169 DOI: 10.1055/a-1530-3980] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Septic shock is the archetypal clinical setting in which extensive crosstalk between inflammation and coagulation dysregulates the latter. The main anticoagulant systems are systematically impaired, depleted, and/or downregulated. Protein Z-dependent protease inhibitor (ZPI) is an anticoagulant serpin that not only targets coagulation factors Xa and XIa but also acts as an acute phase reactant whose plasma concentration rises in inflammatory settings. The objective of the present study was to assess the plasma ZPI antigen level in a cohort of patients suffering from septic shock with or without overt-disseminated intravascular coagulation (DIC). The plasma ZPI antigen level was approximately 2.5-fold higher in the patient group (n = 100; 38 with DIC and 62 without) than in healthy controls (n = 31). The elevation's magnitude did not appear to depend on the presence/absence of DIC. Furthermore, Western blots revealed the presence of cleaved ZPI in plasma from patients with severe sepsis, independently of the DIC status. In vitro, ZPI was proteolytically inactivated by purified neutrophil elastase (NE) and by NE on the surface of neutrophil extracellular traps (NETs). The electrophoretic pattern of ZPI after NE-catalyzed proteolysis was very similar to that resulting from the clotting process-suggesting that the cleaved ZPI observed in severe sepsis plasma is devoid of anticoagulant activity. Taken as a whole, our results (1) suggest that NE is involved in ZPI inactivation during sepsis, and (2) reveal a novel putative mechanism for the procoagulant activity of NETs in immunothrombosis.
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Affiliation(s)
- Elsa P Bianchini
- HITh, UMR_S1176, Institut National de la Santé et de la Recherche Médicale, Université Paris-Saclay, Le Kremlin-Bicêtre, France
| | - Mahita Razanakolona
- HITh, UMR_S1176, Institut National de la Santé et de la Recherche Médicale, Université Paris-Saclay, Le Kremlin-Bicêtre, France
| | - Julie Helms
- Service de Médecine Intensive-Réanimation, Nouvel Hôpital Civil, Hôpitaux universitaires de Strasbourg, Faculté de Médecine, Université de Strasbourg, Strasbourg, France.,UMR_S1109, Institut National de la Santé et de la Recherche Médicale, Faculté de Médecine, Fédération Hospitalo-Universitaire, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Université de Strasbourg, Strasbourg, France
| | - Fouzia Zouiti
- Service d'Hématologie biologique, Hôpital Antoine Béclère, APHP, Université Paris-Saclay, Clamart, France
| | - Amélie Couteau-Chardon
- Service de Médecine Intensive-Réanimation, Hôpital Européen Georges Pompidou, APHP, Paris, France
| | - Viviana Marin-Esteban
- UMR_996, Institut National de la Santé et de la Recherche Médicale, Université Paris-Saclay, Chatenay-Malabry, France
| | - Luc de Chaisemartin
- UMR_996, Institut National de la Santé et de la Recherche Médicale, Université Paris-Saclay, Chatenay-Malabry, France.,Laboratoire d'Immunologie, Hôpital Bichat, APHP, Paris, France
| | - Allan De-Carvalho
- HITh, UMR_S1176, Institut National de la Santé et de la Recherche Médicale, Université Paris-Saclay, Le Kremlin-Bicêtre, France
| | | | - Sylvie Chollet-Martin
- UMR_996, Institut National de la Santé et de la Recherche Médicale, Université Paris-Saclay, Chatenay-Malabry, France.,Laboratoire d'Immunologie, Hôpital Bichat, APHP, Paris, France
| | - Cécile V Denis
- HITh, UMR_S1176, Institut National de la Santé et de la Recherche Médicale, Université Paris-Saclay, Le Kremlin-Bicêtre, France
| | - Jean-Luc Diehl
- Service de Médecine Intensive-Réanimation, Hôpital Européen Georges Pompidou, APHP, Paris, France.,UMR_S1140, Institut National de la Santé et de la Recherche Médicale, Université de Paris, Paris, France
| | - Marc Vasse
- HITh, UMR_S1176, Institut National de la Santé et de la Recherche Médicale, Université Paris-Saclay, Le Kremlin-Bicêtre, France.,Service de Biologie Clinique, Hôpital Foch, Suresnes, France
| | - Ferhat Meziani
- Service de Médecine Intensive-Réanimation, Nouvel Hôpital Civil, Hôpitaux universitaires de Strasbourg, Faculté de Médecine, Université de Strasbourg, Strasbourg, France.,UMR_1260, Institut National de la Santé et de la Recherche Médicale, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France
| | - Delphine Borgel
- HITh, UMR_S1176, Institut National de la Santé et de la Recherche Médicale, Université Paris-Saclay, Le Kremlin-Bicêtre, France.,Laboratoire d'Hématologie Biologique, Hôpital Necker, APHP, Paris, France
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7
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Holm S, Kared H, Michelsen AE, Kong XY, Dahl TB, Schultz NH, Nyman TA, Fladeby C, Seljeflot I, Ueland T, Stensland M, Mjaaland S, Goll GL, Nissen-Meyer LS, Aukrust P, Skagen K, Gregersen I, Skjelland M, Holme PA, Munthe LA, Halvorsen B. Immune complexes, innate immunity, and NETosis in ChAdOx1 vaccine-induced thrombocytopenia. Eur Heart J 2021; 42:4064-4072. [PMID: 34405870 PMCID: PMC8385969 DOI: 10.1093/eurheartj/ehab506] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 06/25/2021] [Accepted: 08/06/2021] [Indexed: 01/04/2023] Open
Abstract
Aims We recently reported five cases of vaccine-induced immune thrombotic thrombocytopenia (VITT) 7–10 days after receiving the first dose of the ChAdOx1 nCoV-19 adenoviral vector vaccine against corona virus disease 2019 (COVID-19). We aimed to investigate the pathogenic immunological responses operating in these patients. Methods and results We assessed circulating inflammatory markers by immune assays and immune cell phenotyping by flow cytometry analyses and performed immunoprecipitation with anti-platelet factor (PF)4 antibody in plasma samples followed by mass spectrometry from all five patients. A thrombus was retrieved from the sinus sagittal superior of one patient and analysed by immunohistochemistry and flow cytometry. Precipitated immune complexes revealed multiple innate immune pathway triggers for platelet and leucocyte activation. Plasma contained increased levels of innate immune response cytokines and markers of systemic inflammation, extensive degranulation of neutrophils, and tissue and endothelial damage. Blood analyses showed activation of neutrophils and increased levels of circulating H3Cit, dsDNA, and myeloperoxidase–DNA complex. The thrombus had extensive infiltration of neutrophils, formation of neutrophil extracellular traps (NETs), and IgG deposits. Conclusions The results show that anti-PF4/polyanion IgG-mediated thrombus formation in VITT patients is accompanied by a massive innate immune activation and particularly the fulminant activation of neutrophils including NETosis. These results provide novel data on the immune response in this rare adenoviral vector-induced VITT.
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Affiliation(s)
- Sverre Holm
- Research Institute of Internal Medicine, Oslo University Hospital, Postbox 4950, 0424 Oslo, Norway
| | - Hassen Kared
- KG Jebsen Centre for B Cell Malignancies, University of Oslo, Postbox 4950, 0424 Oslo, Norway.,Department of Immunology, Oslo University Hospital, Postbox 4950, 0424 Oslo, Norway.,Institute of Clinical Medicine, University of Oslo, Postbox 1171, Blindern 0318 Oslo, Norway
| | - Annika E Michelsen
- Research Institute of Internal Medicine, Oslo University Hospital, Postbox 4950, 0424 Oslo, Norway.,Institute of Clinical Medicine, University of Oslo, Postbox 1171, Blindern 0318 Oslo, Norway
| | - Xiang Yi Kong
- Research Institute of Internal Medicine, Oslo University Hospital, Postbox 4950, 0424 Oslo, Norway
| | - Tuva B Dahl
- Research Institute of Internal Medicine, Oslo University Hospital, Postbox 4950, 0424 Oslo, Norway.,Division of Emergencies and Critical Care, Department of Research and Development, Oslo University Hospital, Postbox 4950, N-0424 Oslo, Norway
| | - Nina H Schultz
- Department of Haematology, Oslo University Hospital, Postbox 4950, N-0424 Oslo, Norway.,Department of Haematology, Akershus University Hospital, Postbox 1000, 1478 Lørenskog, Norway
| | - Tuula A Nyman
- Department of Immunology, Oslo University Hospital, Postbox 4950, 0424 Oslo, Norway.,Institute of Clinical Medicine, University of Oslo, Postbox 1171, Blindern 0318 Oslo, Norway
| | - Cathrine Fladeby
- Department of Microbiology, Oslo University Hospital, Postbox 4950, N-0424 Oslo, Norway
| | - Ingebjørg Seljeflot
- Institute of Clinical Medicine, University of Oslo, Postbox 1171, Blindern 0318 Oslo, Norway.,Department of Cardiology, Oslo University Hospital, Postbox 4950, N-0424 Oslo, Norway
| | - Thor Ueland
- Research Institute of Internal Medicine, Oslo University Hospital, Postbox 4950, 0424 Oslo, Norway.,Institute of Clinical Medicine, University of Oslo, Postbox 1171, Blindern 0318 Oslo, Norway.,Faculty of Health Sciences, K.G. Jebsen TREC, University of Tromsø, Postbox 6050, Langnes 9037 Tromsø, Norway
| | - Maria Stensland
- Department of Immunology, Oslo University Hospital, Postbox 4950, 0424 Oslo, Norway.,Institute of Clinical Medicine, University of Oslo, Postbox 1171, Blindern 0318 Oslo, Norway
| | - Siri Mjaaland
- Division of Infection Control and Environmental Health, Norwegian Institute of Public Health, Postbox 222, Skøyen, 0213 Oslo, Norway
| | - Guro Løvik Goll
- Division of Rheumatology and Research, Diakonhjemmet Hospital, Postbox 23 Vindern, 0319 Oslo, Norway
| | | | - Pål Aukrust
- Research Institute of Internal Medicine, Oslo University Hospital, Postbox 4950, 0424 Oslo, Norway.,Institute of Clinical Medicine, University of Oslo, Postbox 1171, Blindern 0318 Oslo, Norway.,Section of Clinical Immunology and Infectious Diseases, Oslo University Hospital, Postbox 4950, N-0424 Oslo, Norway
| | - Karolina Skagen
- Department of Neurology, Oslo University Hospital, Postbox 4950, N-0424 Oslo, Norway
| | - Ida Gregersen
- Research Institute of Internal Medicine, Oslo University Hospital, Postbox 4950, 0424 Oslo, Norway
| | - Mona Skjelland
- Institute of Clinical Medicine, University of Oslo, Postbox 1171, Blindern 0318 Oslo, Norway.,Department of Neurology, Oslo University Hospital, Postbox 4950, N-0424 Oslo, Norway
| | - Pål A Holme
- Research Institute of Internal Medicine, Oslo University Hospital, Postbox 4950, 0424 Oslo, Norway.,Institute of Clinical Medicine, University of Oslo, Postbox 1171, Blindern 0318 Oslo, Norway.,Department of Haematology, Oslo University Hospital, Postbox 4950, N-0424 Oslo, Norway
| | - Ludvig A Munthe
- KG Jebsen Centre for B Cell Malignancies, University of Oslo, Postbox 4950, 0424 Oslo, Norway.,Department of Immunology, Oslo University Hospital, Postbox 4950, 0424 Oslo, Norway.,Institute of Clinical Medicine, University of Oslo, Postbox 1171, Blindern 0318 Oslo, Norway
| | - Bente Halvorsen
- Research Institute of Internal Medicine, Oslo University Hospital, Postbox 4950, 0424 Oslo, Norway.,Institute of Clinical Medicine, University of Oslo, Postbox 1171, Blindern 0318 Oslo, Norway
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8
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Razanakolona M, Adam F, Bianchini E, Saller F, Carvalho AD, Diehl JL, Denis CV, Meziani F, Borgel D, Helms J, Vasse M. Anti-inflammatory Activity of the Protein Z-Dependent Protease Inhibitor. TH OPEN 2021; 5:e220-e229. [PMID: 34189397 PMCID: PMC8233056 DOI: 10.1055/s-0041-1730037] [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: 09/28/2020] [Accepted: 04/08/2021] [Indexed: 12/19/2022] Open
Abstract
The protein Z (PZ)-dependent plasma protease inhibitor (ZPI) is a glycoprotein that inhibits factor XIa and, in the presence of PZ, FXa. Recently, ZPI has been shown to be an acute-phase protein (APP). As usually APPs downregulate the harmful effects of inflammation, we tested whether ZPI could modulate the increase of cytokines observed in inflammatory states. We observed that recombinant human ZPI (rhZPI) significantly decreases the levels of interleukin (IL)-1, IL-6, and tumor necrosis factor- α (TNF-α) induced by lipopolysaccharide (LPS) in a whole blood model. This inhibitory effect was unaffected by the presence of PZ or heparin. A ZPI mutant within the reactive loop center ZPI (Y387A), lacking anticoagulant activity, still had an anti-inflammatory activity. Surprisingly, rhZPI did not inhibit the synthesis of IL-6 or TNF-α when purified monocytes were stimulated by LPS, whereas the inhibitory effect was evidenced when lymphocytes were added to monocytes. The requirement of lymphocytes could be due to the synthesis of CCL5 (RANTES), a chemokine mainly produced by activated lymphocytes which is induced by rhZPI, and which can reduce the production of proinflammatory cytokines in whole blood. Lastly, we observed that the intraperitoneal injection of rhZPI significantly decreased LPS-induced IL-6 and TNF-α production in mouse plasma.
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Affiliation(s)
- Mahita Razanakolona
- HITh, INSERM, UMR_S1176, Université Paris-Saclay, Le Kremlin-Bicêtre cedex, France
| | - Frédéric Adam
- HITh, INSERM, UMR_S1176, Université Paris-Saclay, Le Kremlin-Bicêtre cedex, France
| | - Elsa Bianchini
- HITh, INSERM, UMR_S1176, Université Paris-Saclay, Le Kremlin-Bicêtre cedex, France
| | - François Saller
- HITh, INSERM, UMR_S1176, Université Paris-Saclay, Le Kremlin-Bicêtre cedex, France
| | - Allan de Carvalho
- HITh, INSERM, UMR_S1176, Université Paris-Saclay, Le Kremlin-Bicêtre cedex, France
| | - Jean-Luc Diehl
- Département de réanimation médicale, Hôpital Européen Georges Pompidou, Paris, France
| | - Cécile V Denis
- HITh, INSERM, UMR_S1176, Université Paris-Saclay, Le Kremlin-Bicêtre cedex, France
| | - Ferhat Meziani
- Faculté de Médecine, Service de Médecine Intensive-Réanimation, Université de Strasbourg (UNISTRA), Hôpitaux Universitaires de Strasbourg, Nouvel Hôpital Civil, Strasbourg, France.,INSERM (French National Institute of Health and Medical Research), Regenerative Nanomedicine (RNM), FMTS, Strasbourg, France
| | - Delphine Borgel
- HITh, INSERM, UMR_S1176, Université Paris-Saclay, Le Kremlin-Bicêtre cedex, France.,APHP, Laboratoire d'Hématologie, Hôpital Universitaire Necker-Enfants Malades, Paris, France
| | - Julie Helms
- Faculté de Médecine, Service de Médecine Intensive-Réanimation, Université de Strasbourg (UNISTRA), Hôpitaux Universitaires de Strasbourg, Nouvel Hôpital Civil, Strasbourg, France.,ImmunoRhumatologie Moléculaire, LabEx TRANSPLANTEX, Centre de Recherche d'Immunologie et d'Hématologie, Faculté de Médecine, Fédération Hospitalo-Universitaire (FHU) OMICARE, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Université de Strasbourg, Strasbourg, France
| | - Marc Vasse
- HITh, INSERM, UMR_S1176, Université Paris-Saclay, Le Kremlin-Bicêtre cedex, France.,Service de Biologie Clinique, Hôpital Foch, Suresnes, France
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9
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Liu Q, Deng Y, Song A, Xiang Y, Chen D, Wei L. Comparative analysis of mite genomes reveals positive selection for diet adaptation. Commun Biol 2021; 4:668. [PMID: 34083730 PMCID: PMC8175442 DOI: 10.1038/s42003-021-02173-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Accepted: 04/30/2021] [Indexed: 02/06/2023] Open
Abstract
Diet is a powerful evolutionary force for species adaptation and diversification. Acari is one of the most abundant clades of Arachnida, exhibiting diverse dietary types, while the underlying genetic adaptive mechanisms are not fully understood. Based on comparative analyses of 15 Acari genomes, we found genetic bases for three specialized diets. Herbivores experienced stronger selection pressure than other groups; the olfactory genes and gene families involving metabolizing toxins showed strong adaptive signals. Genes and gene families related to anticoagulation, detoxification, and haemoglobin digestion were found to be under strong selection pressure or significantly expanded in the blood-feeding species. Lipid metabolism genes have a faster evolutionary rate and been subjected to greater selection pressures in fat-feeding species; one positively selected site in the fatty-acid amide hydrolases 2 gene was identified. Our research provides a new perspective for the evolution of Acari and offers potential target loci for novel pesticide development.
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Affiliation(s)
- Qiong Liu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China
| | - Yuhua Deng
- Clinical Research Institute, The First People's Hospital of Foshan, Foshan, China
| | - An Song
- ShaanXi JunDa Forensic Medicine Expertise Station, The Fourth Military Medical University, Xi'an, China
| | - Yifan Xiang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China
| | - De Chen
- MOE Key Laboratory for Biodiversity Science and Ecological Engineering, College of Life Sciences, Beijing Normal University, Beijing, China.
| | - Lai Wei
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China.
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10
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Sierko E, Zabrocka E, Ostrowska-Cichocka K, Tokajuk P, Zimnoch L, Wojtukiewicz MZ. Co-localization of Coagulation Factor X and its Inhibitory System, PZ/ZPI, in Human Endometrial Cancer Tissue. In Vivo 2019; 33:771-776. [PMID: 31028196 PMCID: PMC6559914 DOI: 10.21873/invivo.11538] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2019] [Revised: 04/02/2019] [Accepted: 04/05/2019] [Indexed: 02/08/2023]
Abstract
BACKGROUND/AIM Hemostatic system components contribute to cancer progression independently from their roles in hemostasis. It has been shown that protein Z (PZ)/protein Z-dependent protease inhibitor (ZPI) inhibit coagulation factor X (FX). The aim of the study was to analyze the expression of PZ/ZPI in relation to the main coagulation factor - FX in human endometrial cancer tissue. MATERIALS AND METHODS Immunohistochemical analysis was performed on 21 endometrial cancer specimens employing antibodies against ZPI, PZ and FX. RESULTS Endometrial cancer cells showed a strong expression of ZPI and PZ and medium expression of FX. Normal endometrial tissue showed no expression of ZPI, PZ or FX. CONCLUSION Strong expression of PZ and ZPI in endometrial cancer cells suggests a role of these proteins in endometrial cancer.
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Affiliation(s)
- Ewa Sierko
- Department of Oncology, Medical University, Bialystok, Poland
- Department of Radiotherapy, Comprehensive Cancer Center, Bialystok, Poland
| | - Ewa Zabrocka
- Department of Medicine, Stony Brook University, Stony Brook, NY, U.S.A
| | | | - Piotr Tokajuk
- Department of Oncology, Medical University, Bialystok, Poland
- Department of Clinical Oncology, Comprehensive Cancer Center, Bialystok, Poland
| | - Lech Zimnoch
- Department of Clinical Pathomorphology, Medical University, Bialystok, Poland
| | - Marek Z Wojtukiewicz
- Department of Oncology, Medical University, Bialystok, Poland
- Department of Clinical Oncology, Comprehensive Cancer Center, Bialystok, Poland
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11
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Girard TJ, Grunz K, Lasky NM, Malone JP, Broze GJ. Re-evaluation of mouse tissue factor pathway inhibitor and comparison of mouse and human tissue factor pathway inhibitor physiology. J Thromb Haemost 2018; 16:2246-2257. [PMID: 30194803 PMCID: PMC6235150 DOI: 10.1111/jth.14288] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Indexed: 11/30/2022]
Abstract
Essentials Mouse models are often used to define roles of tissue factor pathway inhibitor (TFPI) in man. TFPI isoform-specific KOs reveal unexpected differences between mouse and human TFPI physiology. Mouse plasma contains 20 times more TFPI than man, derived from TFPIγ, a form not found in man. TFPIγ null mice, expressing only TFPI isoforms α and β, may better reflect the human situation. SUMMARY: Background Mouse models can provide insight into the pathophysiology of human thrombosis and hemostasis. Tissue factor pathway inhibitor (TFPI) regulates coagulation through protein S (PS)-enhanced factor (F) Xa inhibition and FXa-dependent inhibition of FVIIa/tissue factor (TF) activity. TFPI is expressed as isoforms α and β in man, and α, β and γ in the mouse. Objective Assess the reliability of extending TFPI-related studies in mice to humans. Method Compare mouse and human TFPI physiology using a variety of methods. Results Mouse TFPI and human TFPI are similar in regard to: (i) the mechanisms for FVIIa/TF and FXa inhibition; (ii) TFPIα is a soluble form and TFPIβ is glycosyl phosphatidyl inositol (GPI) membrane anchored; (iii) the predominant circulating form of TFPI in plasma is lipoprotein-associated; (iv) low levels of TFPIα circulate in plasma and increase following heparin treatment; and (v) TFPIα is the isoform in platelets. They differ in that: (i) mouse TFPI circulates at a ~20-fold higher concentration; (ii) mouse lines with isolated isoform deletions show this circulating mouse TFPI is derived from TFPIγ; (iii) sequences homologous to the mouse TFPIγ exon are present in many species, including man, but in primates are unfavorable for splicing; and (iv) tandem mass spectrometry (MS/MS) detects sequences for TFPI isoforms α and β in human plasma and α and γ in mouse plasma. Conclusion To dissect the pathophysiological roles of human TFPIα and TFPIβ, studies in TFPIγ null mice, expressing only α and β, only α or only β should better reflect the human situation.
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Affiliation(s)
- Thomas J. Girard
- Division of Hematology, Department of Medicine, Washington University School of Medicine, St. Louis, MO
| | - Kristin Grunz
- Division of Hematology, Department of Medicine, Washington University School of Medicine, St. Louis, MO
| | - Nina M. Lasky
- Division of Hematology, Department of Medicine, Washington University School of Medicine, St. Louis, MO
| | - James P. Malone
- Proteomics Core Laboratory, Institute of Clinical and Translational Sciences, Washington University School of Medicine, St. Louis, MO
| | - George J. Broze
- Division of Hematology, Department of Medicine, Washington University School of Medicine, St. Louis, MO
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12
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Nourse J, Braun J, Lackner K, Hüttelmaier S, Danckwardt S. Large-scale identification of functional microRNA targeting reveals cooperative regulation of the hemostatic system. J Thromb Haemost 2018; 16:2233-2245. [PMID: 30207063 DOI: 10.1111/jth.14290] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Indexed: 12/22/2022]
Abstract
Essentials MicroRNAs (miRNAs) regulate the molecular networks controlling biological functions such as hemostasis. We utilized novel methods to analyze miRNA-mediated regulation of the hemostatic system. 52 specific miRNA interactions with 11 key hemostatic associated genes were identified. Functionality and drugability of miRNA-19b-3p against antithrombin were demonstrated in vivo. SUMMARY: Background microRNAs (miRNAs) confer robustness to complex molecular networks regulating biological functions. However, despite the involvement of miRNAs in almost all biological processes, and the importance of the hemostatic system for a multitude of actions in and beyond blood coagulation, the role of miRNAs in hemostasis is poorly defined. Objectives Here we comprehensively illuminate miRNA-mediated regulation of the hemostatic system in an unbiased manner. Methods In contrast to widely applied association studies, we used an integrative screening approach that combines functional aspects of miRNA silencing with biophysical miRNA interaction based on RNA pull-downs (miTRAP) coupled to next-generation sequencing. Results Examination of a panel of 27 hemostasis-associated gene 3'UTRs revealed the majority to possess substantial Dicer-dependent silencing capability, suggesting functional miRNA targeting. miTRAP revealed 150 specific miRNA interactions with 14 3'UTRs, of which 52, involving 40 miRNAs, were functionally confirmed. This includes cooperative miRNA regulation of key hemostatic genes comprising procoagulant (F7, F8, F11, FGA, FGG and KLKB1) and anticoagulant (SERPINA10, PROZ, SERPIND1 and SERPINC1) as well as fibrinolytic (PLG) components. Bioinformatic analysis of miRNA functionality reveals established and potential novel links between the hemostatic system and other pathologies, such as cancer, bone metabolism and renal function. Conclusions Our findings provide, along with an in-vivo proof of concept, deep insights into the network of miRNAs regulating the hemostatic system and present a foundation for biomarker discovery and novel targeted therapeutics for correction of de-regulated hemostasis and associated processes in the future. A repository of the miRNA targetome covering 14 hemostatic components is provided.
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Affiliation(s)
- J Nourse
- Center for Thrombosis and Hemostasis (CTH), University Medical Center of the Johannes Gutenberg University, Mainz, Germany
- Institute for Clinical Chemistry and Laboratory Medicine, University Medical Center of the Johannes Gutenberg University, Mainz, Germany
| | - J Braun
- Institute of Molecular Medicine, Martin Luther University Halle (Saale), Halle, Germany
| | - K Lackner
- Institute for Clinical Chemistry and Laboratory Medicine, University Medical Center of the Johannes Gutenberg University, Mainz, Germany
| | - S Hüttelmaier
- Institute of Molecular Medicine, Martin Luther University Halle (Saale), Halle, Germany
| | - S Danckwardt
- Center for Thrombosis and Hemostasis (CTH), University Medical Center of the Johannes Gutenberg University, Mainz, Germany
- Institute for Clinical Chemistry and Laboratory Medicine, University Medical Center of the Johannes Gutenberg University, Mainz, Germany
- German Center for Cardiovascular Research (DZHK), Rhine-Main, University Medical Center, Mainz, Germany
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13
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Kloek AT, Khan HN, Valls Seron M, Jongejan A, Zwinderman AH, Baas F, van der Ende A, van de Beek D, Ferwerda B, Brouwer MC. Variation in coagulation and fibrinolysis genes evaluated for their contribution to cerebrovascular complications in adults with bacterial meningitis in the Netherlands. J Infect 2018; 77:54-59. [PMID: 29746949 DOI: 10.1016/j.jinf.2018.03.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Revised: 03/07/2018] [Accepted: 03/19/2018] [Indexed: 10/17/2022]
Abstract
OBJECTIVE To study whether genetic variation in coagulation and fibrinolysis genes contributes to cerebrovascular complications in bacterial meningitis. METHODS We performed a nationwide prospective genetic association study in adult community-acquired bacterial meningitis patients. The exons and flanking regions of 16 candidate genes involved in coagulation and fibrinolysis pathways were sequenced. We analyzed whether genetic variation in these genes resulted in a higher risk of cerebrovascular complications, unfavorable outcome and differences in thrombocyte count on admission. RESULTS From 2006 to 2011, a total of 1101 bacterial meningitis patients were identified of whom 622 supplied DNA for genotyping and passed genetic quality control steps. In 139 patients (22%) the episode of bacterial meningitis was complicated by cerebral infarction, and 188 (30%) had an unfavorable outcome. We identified the functional variant rs494860 in the protein Z (PROZ) gene as our strongest association with occurrence of cerebral infarction (odds ratio (OR) 0.49 (95% confidence interval 0.33-0.73), p = 5.2 × 10-4). After Bonferroni correction for multiple testing no genetic variant was significantly associated (p-value threshold 2.7 × 10-4). CONCLUSION Our study suggests a functional genetic variation in the PROZ gene, rs494860, may be of importance in bacterial meningitis pathogenesis and cerebral infarction risk. Replication of this finding in other cohort studies populations is needed.
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Affiliation(s)
- A T Kloek
- Department of Neurology, Center of Infection and Immunity Amsterdam (CINIMA), Academic Medical Center, University of Amsterdam, PO Box 22660, 1100 DD Amsterdam, The Netherlands
| | - H N Khan
- Department of Neurology, Center of Infection and Immunity Amsterdam (CINIMA), Academic Medical Center, University of Amsterdam, PO Box 22660, 1100 DD Amsterdam, The Netherlands; Department of Clinical Epidemiology, Biostatistics and Bioinformatics, Academic Medical Center, University of Amsterdam, PO Box 22660, 1100 DD Amsterdam, The Netherlands
| | - M Valls Seron
- Department of Neurology, Center of Infection and Immunity Amsterdam (CINIMA), Academic Medical Center, University of Amsterdam, PO Box 22660, 1100 DD Amsterdam, The Netherlands
| | - A Jongejan
- Department of Clinical Epidemiology, Biostatistics and Bioinformatics, Academic Medical Center, University of Amsterdam, PO Box 22660, 1100 DD Amsterdam, The Netherlands
| | - A H Zwinderman
- Department of Clinical Epidemiology, Biostatistics and Bioinformatics, Academic Medical Center, University of Amsterdam, PO Box 22660, 1100 DD Amsterdam, The Netherlands
| | - F Baas
- Department of Genome Analysis, Academic Medical Center, University of Amsterdam, PO Box 22660, 1100 DD Amsterdam, The Netherlands
| | - A van der Ende
- Department of Medical Microbiology and The Netherlands Reference Laboratory for Bacterial Meningitis, Academic Medical Center, University of Amsterdam, PO Box 22660, 1100 DD Amsterdam, The Netherlands
| | - D van de Beek
- Department of Neurology, Center of Infection and Immunity Amsterdam (CINIMA), Academic Medical Center, University of Amsterdam, PO Box 22660, 1100 DD Amsterdam, The Netherlands.
| | - B Ferwerda
- Department of Neurology, Center of Infection and Immunity Amsterdam (CINIMA), Academic Medical Center, University of Amsterdam, PO Box 22660, 1100 DD Amsterdam, The Netherlands
| | - M C Brouwer
- Department of Neurology, Center of Infection and Immunity Amsterdam (CINIMA), Academic Medical Center, University of Amsterdam, PO Box 22660, 1100 DD Amsterdam, The Netherlands
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14
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Słomka A, Piekuś A, Kowalewski M, Pawliszak W, Anisimowicz L, Żekanowska E. Assessment of the Procoagulant Activity of Microparticles and the Protein Z System in Patients Undergoing Off-Pump Coronary Artery Bypass Surgery. Angiology 2017; 69:347-357. [PMID: 28464697 DOI: 10.1177/0003319717706616] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
To understand the coagulation changes after off-pump coronary artery bypass (OPCAB) surgery, we evaluated the procoagulant activity of microparticles (MPs) and microparticles exposing tissue factor (MPs-TF), together with the levels of total tissue factor (TF), protein Z (PZ), protein Z-dependent protease inhibitor (ZPI), and factor X (FX) before (first day) and 1 week after surgery (seventh day) in plasma samples from 30 patients. Twenty healthy controls were also included. Compared to the controls, patients scheduled for surgery had significantly higher MPs-TF procoagulant activity and lower TF levels ( P = .0006, P = .02, respectively). In the whole cohort, median procoagulant activity of MPs-TF and median levels of TF and ZPI were significantly lower ( P = .02, P = .0003, and P = .004, respectively), while median levels of PZ and FX were significantly higher ( P = .02 and P = .002, respectively) on the seventh day compared to the first day. Our results suggest that OPCAB surgery has a significant effect on the procoagulant activity of MPs-TF and the PZ system.
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Affiliation(s)
- Artur Słomka
- 1 Department of Pathophysiology, Nicolaus Copernicus University, Toruń, Ludwik Rydygier Collegium Medicum, Bydgoszcz, Poland
| | - Aleksandra Piekuś
- 2 Department of Cardiac Surgery, Dr Antoni Jurasz Memorial University Hospital, Bydgoszcz, Poland
| | - Mariusz Kowalewski
- 2 Department of Cardiac Surgery, Dr Antoni Jurasz Memorial University Hospital, Bydgoszcz, Poland
| | - Wojciech Pawliszak
- 2 Department of Cardiac Surgery, Dr Antoni Jurasz Memorial University Hospital, Bydgoszcz, Poland
| | - Lech Anisimowicz
- 2 Department of Cardiac Surgery, Dr Antoni Jurasz Memorial University Hospital, Bydgoszcz, Poland
| | - Ewa Żekanowska
- 1 Department of Pathophysiology, Nicolaus Copernicus University, Toruń, Ludwik Rydygier Collegium Medicum, Bydgoszcz, Poland
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15
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The plasma levels of protein Z-dependent protease inhibitor increase after gynecological surgery independently of estrogen. Thromb Res 2015; 136:980-6. [DOI: 10.1016/j.thromres.2015.09.020] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2015] [Revised: 07/16/2015] [Accepted: 09/24/2015] [Indexed: 11/18/2022]
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16
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Huang X, Zhou J, Zhou A, Olson ST. Thermodynamic and kinetic characterization of the protein Z-dependent protease inhibitor (ZPI)-protein Z interaction reveals an unexpected role for ZPI Lys-239. J Biol Chem 2015; 290:9906-18. [PMID: 25713144 DOI: 10.1074/jbc.m114.633479] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2014] [Indexed: 11/06/2022] Open
Abstract
The anticoagulant serpin, protein Z-dependent protease inhibitor (ZPI), circulates in blood as a tight complex with its cofactor, protein Z (PZ), enabling it to function as a rapid inhibitor of membrane-associated factor Xa. Here, we show that N,N'-dimethyl-N-(acetyl)-N'-(7-nitrobenz-3-oxa-1,3-diazol-4-yl)ethylenediamine (NBD)-fluorophore-labeled K239C ZPI is a sensitive, moderately perturbing reporter of the ZPI-PZ interaction and utilize the labeled ZPI to characterize in-depth the thermodynamics and kinetics of wild-type and variant ZPI-PZ interactions. NBD-labeled K239C ZPI bound PZ with ∼3 nM KD and ∼400% fluorescence enhancement at physiologic pH and ionic strength. The NBD-ZPI-PZ interaction was markedly sensitive to ionic strength and pH but minimally affected by temperature, consistent with the importance of charged interactions. NBD-ZPI-PZ affinity was reduced ∼5-fold by physiologic calcium levels to resemble NBD-ZPI affinity for γ-carboxyglutamic acid/EGF1-domainless PZ. Competitive binding studies with ZPI variants revealed that in addition to previously identified Asp-293 and Tyr-240 hot spot residues, Met-71, Asp-74, and Asp-238 made significant contributions to PZ binding, whereas Lys-239 antagonized binding. Rapid kinetic studies indicated a multistep binding mechanism with diffusion-limited association and slow complex dissociation. ZPI complexation with factor Xa or cleavage decreased ZPI-PZ affinity 2-7-fold by increasing the rate of PZ dissociation. A catalytic role for PZ was supported by the correlation between a decreased rate of PZ dissociation from the K239A ZPI-PZ complex and an impaired ability of PZ to catalyze the K239A ZPI-factor Xa reaction. Together, these results reveal the energetic basis of the ZPI-PZ interaction and suggest an important role for ZPI Lys-239 in PZ catalytic action.
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Affiliation(s)
- Xin Huang
- From the Center for Molecular Biology of Oral Diseases and Department of Periodontics, University of Illinois at Chicago, Chicago, Illinois 60612 and
| | - Jian Zhou
- From the Center for Molecular Biology of Oral Diseases and Department of Periodontics, University of Illinois at Chicago, Chicago, Illinois 60612 and
| | - Aiwu Zhou
- Key Laboratory of Cell Differentiation and Apoptosis of Ministry of Education of China, Shanghai JiaoTong University School of Medicine, Shanghai 200025, China
| | - Steven T Olson
- From the Center for Molecular Biology of Oral Diseases and Department of Periodontics, University of Illinois at Chicago, Chicago, Illinois 60612 and
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17
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Unbalance between plasma levels of Protein Z and protein Z-dependent inhibitor in patients with colorectal and pancreatic cancer: A pilot study. Thromb Res 2014; 133:299-300. [DOI: 10.1016/j.thromres.2013.11.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2013] [Revised: 10/30/2013] [Accepted: 11/18/2013] [Indexed: 11/22/2022]
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