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High serum soluble CD40L levels previously to liver transplantation in patients with hepatocellular carcinoma are associated with mortality at one year. J Crit Care 2017; 43:316-320. [PMID: 29020665 DOI: 10.1016/j.jcrc.2017.09.032] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2017] [Revised: 08/29/2017] [Accepted: 09/15/2017] [Indexed: 12/17/2022]
Abstract
PURPOSE CD40L and its soluble form (sCD40L) are proteins of the tumor necrosis factor superfamily (TNFSF) that exhibit prothrombotic and proinflammatory properties when binding to CD40, which is a cell surface receptor of the tumor necrosis factor receptor superfamily (TNFRSF). High circulating levels of sCD40L have been associated with poor prognosis in patients with hepatocellular carcinoma (HCC). However, it is unknown whether there is an association between circulating sCD40L levels and survival in patients with HCC underwent to liver transplantation (LT), and this was the objective of that study. METHODS Serum sCD40L levels were measured in a total of 139 patients before LT (124 survivors at 1year of LT and 15 non-survivors). The end-point study was 1year survival after liver LT. RESULTS We found that 1-year non-surviving patients showed higher serum sCD40L levels than survivor patients (p=0.02). We found in logistic regression analysis that serum sCD40L levels higher than 321pg/mL (Odds Ratio=6.86; 95% confidence interval=2.06-22.76; p=0.002) and age of LT deceased donor were associated with death at 1year. CONCLUSIONS The new finding of our study was that high serum sCD40L levels previously to LT in patients with HCC are associated with higher mortality at one year.
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Chamberlain C, Colman PJ, Ranger AM, Burkly LC, Johnston GI, Otoul C, Stach C, Zamacona M, Dörner T, Urowitz M, Hiepe F. Repeated administration of dapirolizumab pegol in a randomised phase I study is well tolerated and accompanied by improvements in several composite measures of systemic lupus erythematosus disease activity and changes in whole blood transcriptomic profiles. Ann Rheum Dis 2017; 76:1837-1844. [DOI: 10.1136/annrheumdis-2017-211388] [Citation(s) in RCA: 69] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Revised: 06/01/2017] [Accepted: 06/10/2017] [Indexed: 01/15/2023]
Abstract
ObjectivesSystemic lupus erythematosus (SLE) is a heterogeneous autoimmune disease associated with diffuse immune cell dysfunction. CD40–CD40 ligand (CD40L) interaction activates B cells, antigen-presenting cells and platelets. CD40L blockade might provide an innovative treatment for systemic autoimmune disorders. We investigated the safety and clinical activity of dapirolizumab pegol, a polyethylene glycol conjugated anti-CD40L Fab' fragment, in patients with SLE.MethodsThis 32-week randomised, double-blind, multicentre study (NCT01764594) evaluated repeated intravenous administration of dapirolizumab pegol in patients with SLE who were positive for/had history of antidouble stranded DNA/antinuclear antibodies and were on stable doses of immunomodulatory therapies (if applicable). Sixteen patients were randomised to 30 mg/kg dapirolizumab pegol followed by 15 mg/kg every 2 weeks for 10 weeks; eight patients received a matched placebo regimen. Randomisation was stratified by evidence of antiphospholipid antibodies. Patients were followed for 18 weeks after the final dose.ResultsNo serious treatment-emergent adverse events, thromboembolic events or deaths occurred. Adverse events were mild or moderate, transient and resolved without intervention. One patient withdrew due to infection.Efficacy assessments were conducted only in patients with high disease activity at baseline. Five of 11 (46%) dapirolizumab pegol-treated patients achieved British Isles Lupus Assessment Group-based Composite Lupus Assessment response (vs 1/7; 14% placebo) and 5/12 (42%) evaluable for SLE Responder Index-4 responded by week 12 (vs 1/7; 14% placebo). Mechanism-related gene expression changes were observed in blood RNA samples.ConclusionsDapirolizumab pegol could be an effective biological treatment for SLE. Further studies are required to address efficacy and safety.Trial registration numberNCT01764594.
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Lee A, Papangeli I, Park Y, Jeong HN, Choi J, Kang H, Jo HN, Kim J, Chun HJ. A PPARγ-dependent miR-424/503-CD40 axis regulates inflammation mediated angiogenesis. Sci Rep 2017; 7:2528. [PMID: 28566713 PMCID: PMC5451412 DOI: 10.1038/s41598-017-02852-4] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Accepted: 04/20/2017] [Indexed: 12/22/2022] Open
Abstract
Activation of the endothelium by pro-inflammatory stimuli plays a key role in the pathogenesis of a multitude of vascular diseases. Angiogenesis is a crucial component of the vascular response associated with inflammatory signaling. The CD40/CD40 ligand dyad in endothelial cells (EC) has a central role in promoting vascular inflammatory response; however, the molecular mechanism underlying this component of inflammation and angiogenesis is not fully understood. Here we report a novel microRNA mediated suppression of endothelial CD40 expression. We found that CD40 is closely regulated by miR-424 and miR-503, which directly target its 3′ untranslated region. Pro-inflammatory stimuli led to increased endothelial CD40 expression, at least in part due to decreased miR-424 and miR-503 expression. In addition, miR-424 and miR-503 reduced LPS induced EC sprouting, migration and tube formation. Moreover, we found that miR-424 and miR-503 expression is directly regulated by peroxisome proliferator-activated receptor gamma (PPARγ), whose endothelial expression and activity are decreased in response to inflammatory factors. Finally, we demonstrate that mice with endothelial-specific deletion of miR-322 (miR-424 ortholog) and miR-503 have augmented angiogenic response to LPS in a Matrigel plug assay. Overall, these studies identify a PPARγ-dependent miR-424/503-CD40 signaling axis that is critical for regulation of inflammation mediated angiogenesis.
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Affiliation(s)
- Aram Lee
- Department of Life Systems, Sookmyung Women's University, 52 Hyochangwon-gil, Yongsan-gu, Seoul, 140-742, Korea
| | - Irinna Papangeli
- Yale Cardiovascular Research Center, Section of Cardiovascular Medicine, Yale University School of Medicine, New Haven, CT, USA
| | - Youngsook Park
- Department of Life Systems, Sookmyung Women's University, 52 Hyochangwon-gil, Yongsan-gu, Seoul, 140-742, Korea
| | - Ha-Neul Jeong
- Department of Life Systems, Sookmyung Women's University, 52 Hyochangwon-gil, Yongsan-gu, Seoul, 140-742, Korea
| | - Jihea Choi
- Department of Life Systems, Sookmyung Women's University, 52 Hyochangwon-gil, Yongsan-gu, Seoul, 140-742, Korea
| | - Hyesoo Kang
- Department of Life Systems, Sookmyung Women's University, 52 Hyochangwon-gil, Yongsan-gu, Seoul, 140-742, Korea
| | - Ha-Neul Jo
- Department of Life Systems, Sookmyung Women's University, 52 Hyochangwon-gil, Yongsan-gu, Seoul, 140-742, Korea
| | - Jongmin Kim
- Department of Life Systems, Sookmyung Women's University, 52 Hyochangwon-gil, Yongsan-gu, Seoul, 140-742, Korea. .,Yale Cardiovascular Research Center, Section of Cardiovascular Medicine, Yale University School of Medicine, New Haven, CT, USA.
| | - Hyung J Chun
- Yale Cardiovascular Research Center, Section of Cardiovascular Medicine, Yale University School of Medicine, New Haven, CT, USA.
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Sekhon UDS, Sen Gupta A. Platelets and Platelet-Inspired Biomaterials Technologies in Wound Healing Applications. ACS Biomater Sci Eng 2017; 4:1176-1192. [DOI: 10.1021/acsbiomaterials.7b00013] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Ujjal Didar Singh Sekhon
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, Ohio 44102, United States
| | - Anirban Sen Gupta
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, Ohio 44102, United States
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Soluble CD40 ligand contributes to blood–brain barrier breakdown and central nervous system inflammation in multiple sclerosis and neuromyelitis optica spectrum disorder. J Neuroimmunol 2017; 305:102-107. [DOI: 10.1016/j.jneuroim.2017.01.024] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2016] [Revised: 01/22/2017] [Accepted: 01/30/2017] [Indexed: 12/22/2022]
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Duration of red blood cell storage and inflammatory marker generation. BLOOD TRANSFUSION = TRASFUSIONE DEL SANGUE 2017; 15:145-152. [PMID: 28263172 DOI: 10.2450/2017.0343-16] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Accepted: 12/16/2016] [Indexed: 02/08/2023]
Abstract
Red blood cell (RBC) transfusion is a life-saving treatment for several pathologies. RBCs for transfusion are stored refrigerated in a preservative solution, which extends their shelf-life for up to 42 days. During storage, the RBCs endure abundant physicochemical changes, named RBC storage lesions, which affect the overall quality standard, the functional integrity and in vivo survival of the transfused RBCs. Some of the changes occurring in the early stages of the storage period (for approximately two weeks) are reversible but become irreversible later on as the storage is extended. In this review, we aim to decipher the duration of RBC storage and inflammatory marker generation. This phenomenon is included as one of the causes of transfusion-related immunomodulation (TRIM), an emerging concept developed to potentially elucidate numerous clinical observations that suggest that RBC transfusion is associated with increased inflammatory events or effects with clinical consequence.
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Oliveira RADS, Cordeiro MT, Moura PMMFD, Baptista Filho PNB, Braga-Neto UDM, Marques ETDA, Gil LHVG. Serum cytokine/chemokine profiles in patients with dengue fever (DF) and dengue hemorrhagic fever (FHD) by using protein array. J Clin Virol 2017; 89:39-45. [PMID: 28242509 DOI: 10.1016/j.jcv.2017.02.007] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2016] [Revised: 02/09/2017] [Accepted: 02/14/2017] [Indexed: 11/25/2022]
Abstract
BACKGROUND DENV infection can induce different clinical manifestations varying from mild forms to dengue fever (DF) or the severe hemorrhagic fever (DHF). Several factors are involved in the progression from DF to DHF. No marker is available to predict this progression. Such biomarker could allow a suitable medical care at the beginning of the infection, improving patient prognosis. OBJECTIVES The aim of this study was to compare the serum expression levels of acute phase proteins in a well-established cohort of dengue fever (DF) and dengue hemorrhagic fever (DHF) patients, in order to individuate a prognostic marker of diseases severity. STUDY DESIGN The serum levels of 36 cytokines, chemokines and acute phase proteins were determined in DF and DHF patients and compared to healthy volunteers using a multiplex protein array and near-infrared (NIR) fluorescence detection. Serum levels of IL-1ra, IL-23, MIF, sCD40 ligand, IP-10 and GRO-α were also determined by ELISA. RESULTS At the early stages of infection, GRO-α and IP-10 expression levels were different in DF compared to DHF patients. Besides, GRO-α was positively correlated with platelet counts and IP-10 was negatively correlated with total protein levels. CONCLUSIONS These findings suggest that high levels of GRO-α during acute DENV infection may be associated with a good prognosis, while high levels of IP-10 may be a warning sign of infection severity.
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Affiliation(s)
| | - Marli Tenório Cordeiro
- Departamento de Virologia, Centro de Pesquisas Aggeu Magalhães-Fundação Oswaldo Cruz-Fiocruz, Recife, PE, Brazil
| | | | | | | | - Ernesto Torres de Azevedo Marques
- Departamento de Virologia, Centro de Pesquisas Aggeu Magalhães-Fundação Oswaldo Cruz-Fiocruz, Recife, PE, Brazil; Department of Infectious Diseases and Microbiology, Center for Vaccine Research, University of Pittsburgh, Pittsburgh, PA, USA
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Platelet components: is there need or room for quality control assays of storage lesions? BLOOD TRANSFUSION = TRASFUSIONE DEL SANGUE 2017; 16:1-3. [PMID: 28151389 DOI: 10.2450/2016.0319-16] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Vallet-Courbin A, Larivière M, Hocquellet A, Hemadou A, Parimala SN, Laroche-Traineau J, Santarelli X, Clofent-Sanchez G, Jacobin-Valat MJ, Noubhani A. A Recombinant Human Anti-Platelet scFv Antibody Produced in Pichia pastoris for Atheroma Targeting. PLoS One 2017; 12:e0170305. [PMID: 28125612 PMCID: PMC5268420 DOI: 10.1371/journal.pone.0170305] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2016] [Accepted: 01/03/2017] [Indexed: 11/18/2022] Open
Abstract
Cells of the innate and adaptive immune system are key factors in the progression of atherosclerotic plaque, leading to plaque instability and rupture, potentially resulting in acute atherothrombotic events such as coronary artery disease, cerebrovascular disease and peripheral arterial disease. Here, we describe the cloning, expression, purification, and immunoreactivity assessment of a recombinant single-chain variable fragment (scFv) derived from a human anti-αIIbβ3 antibody (HuAb) selected to target atheromatous lesions for the presence of platelets. Indeed, platelets within atheroma plaques have been shown to play a role in inflammation, in platelet-leucocyte aggregates and in thrombi formation and might thus be considered relevant biomarkers of atherosclerotic progression. The DNA sequence that encodes the anti-αIIbβ3 TEG4 scFv previously obtained from a phage-display selection on activated platelets, was inserted into the eukaryote vector (pPICZαA) in fusion with a tag sequence encoding 2 cysteines useable for specific probes grafting experiments. The recombinant protein was expressed at high yields in Pichia pastoris (30 mg/L culture). The advantage of P. pastoris as an expression system is the production and secretion of recombinant proteins in the supernatant, ruling out the difficulties encountered when scFv are produced in the cytoplasm of bacteria (low yield, low solubility and reduced affinity). The improved conditions allowed for the recovery of highly purified and biologically active scFv fragments ready to be grafted in a site-directed way to nanoparticles for the imaging of atherosclerotic plaques involving inflammatory processes and thus at high risk of instability.
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Affiliation(s)
| | - Mélusine Larivière
- Centre de Résonance Magnétique de Systèmes Biologiques, Centre Nationale de Recherche Scientifique et Université de Bordeaux, Bordeaux, France
| | | | - Audrey Hemadou
- Centre de Résonance Magnétique de Systèmes Biologiques, Centre Nationale de Recherche Scientifique et Université de Bordeaux, Bordeaux, France
| | | | - Jeanny Laroche-Traineau
- Centre de Résonance Magnétique de Systèmes Biologiques, Centre Nationale de Recherche Scientifique et Université de Bordeaux, Bordeaux, France
| | | | - Gisèle Clofent-Sanchez
- Centre de Résonance Magnétique de Systèmes Biologiques, Centre Nationale de Recherche Scientifique et Université de Bordeaux, Bordeaux, France
| | - Marie-Josée Jacobin-Valat
- Centre de Résonance Magnétique de Systèmes Biologiques, Centre Nationale de Recherche Scientifique et Université de Bordeaux, Bordeaux, France
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Flow cytometry analysis of platelet populations: usefulness for monitoringthe storage lesion in pooled buffy-coat platelet concentrates. BLOOD TRANSFUSION = TRASFUSIONE DEL SANGUE 2016; 16:83-92. [PMID: 28166864 DOI: 10.2450/2016.0193-16] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 07/12/2016] [Accepted: 10/03/2016] [Indexed: 12/24/2022]
Abstract
BACKGROUND Early detection of the platelet storage lesion is still a challenge in transfusion practice. Using flow cytometry, we evaluated the appearance of the storage lesion, based on the expression of platelet activation markers, in total platelets and platelet populations. MATERIALS AND METHODS Buffy-coat-derived platelet concentrates were stored under standard conditions for 5 days. The expression of activation antigens CD42b, CD36, CD62p and phosphatidylserine on total platelets and populations of small, medium-sized and large platelets was analysed by flow cytometry on storage days 1, 3 and 5. RESULTS The activation/lesion on total platelets and each platelet population was detected on storage day 3, by the increased expression of CD36. On the same day, increased expression of CD42b and CD62p was detected, but only on large platelets. Small and medium-sized platelets had increased CD62p expression only on day 5. Externalisation of phosphatidylserine was not detected. DISCUSSION Evaluation of the level of expression of various activation markers on different platelet populations could be an additional valid analysis in cell quality control of platelet concentrates, and in the assessment of novel approaches to platelet concentrate manipulation.
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111
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Garraud O, Tariket S, Sut C, Haddad A, Aloui C, Chakroun T, Laradi S, Cognasse F. Transfusion as an Inflammation Hit: Knowns and Unknowns. Front Immunol 2016; 7:534. [PMID: 27965664 PMCID: PMC5126107 DOI: 10.3389/fimmu.2016.00534] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Accepted: 11/11/2016] [Indexed: 01/15/2023] Open
Abstract
Transfusion of blood cell components is frequent in the therapeutic arsenal; it is globally safe or even very safe. At present, residual clinical manifestations are principally inflammatory in nature. If some rare clinical hazards manifest as acute inflammation symptoms of various origin, most of them linked with conflicting and undesirable biological material accompanying the therapeutic component (infectious pathogen, pathogenic antibody, unwanted antigen, or allergen), the general feature is subtler and less visible, and essentially consists of alloimmunization or febrile non-hemolytic transfusion reaction. The present essay aims to present updates in hematology and immunology that help understand how, when, and why subclinical inflammation underlies alloimmunization and circumstances characteristic of red blood cells and – even more frequently – platelets that contribute inflammatory mediators. Modern transfusion medicine makes sustained efforts to limit such inflammatory hazards; efforts can be successful only if one has a clear view of each element’s role.
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Affiliation(s)
- Olivier Garraud
- Faculty of Medicine of Saint-Etienne, University of Lyon, Saint-Etienne, France; Institut National de la Transfusion Sanguine, Paris, France
| | - S Tariket
- Faculty of Medicine of Saint-Etienne, University of Lyon , Saint-Etienne , France
| | - C Sut
- Faculty of Medicine of Saint-Etienne, University of Lyon , Saint-Etienne , France
| | - A Haddad
- Faculty of Medicine of Saint-Etienne, University of Lyon, Saint-Etienne, France; Hôpital du Sacré-Coeur, Beirut, Lebanon
| | - C Aloui
- Faculty of Medicine of Saint-Etienne, University of Lyon , Saint-Etienne , France
| | - T Chakroun
- Faculty of Medicine of Saint-Etienne, University of Lyon, Saint-Etienne, France; Centre de Transfusion Sanguine, Sousse, Tunisia; Faculty of Pharmacy, University of Monastir, Monastir, Tunisia
| | - S Laradi
- Faculty of Medicine of Saint-Etienne, University of Lyon, Saint-Etienne, France; Etablissement Français du Sang Rhône-Alpes-Auvergne, Saint-Etienne, France
| | - F Cognasse
- Faculty of Medicine of Saint-Etienne, University of Lyon, Saint-Etienne, France; Etablissement Français du Sang Rhône-Alpes-Auvergne, Saint-Etienne, France
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112
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Pfluecke C, Plichta L, Tarnowski D, Forkmann M, Ulbrich S, Quick S, Heidrich FM, Wiedemann S, Christoph M, Poitz DM, Wunderlich C, Strasser RH, Ibrahim K. Association of platelet activation markers with recurrence of atrial fibrillation after pulmonary vein isolation. Platelets 2016; 28:394-399. [PMID: 27736274 DOI: 10.1080/09537104.2016.1227429] [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] [Indexed: 10/20/2022]
Abstract
Atrial fibrillation (AF) is known to cause platelet activation. AF and its degree of thrombogenesis could be associated with monocyte-platelet aggregates (MPAs). We investigated on whether the content of MPAs or other platelet activation markers is associated with the recurrence of AF after pulmonary vein isolation (PVI). A total of 73 patients with symptomatic AF underwent PVI. After 6 months, all patients were evaluated for episodes of AF recurrence. At the same time, flow-cytometric quantification analyses were performed to determine the content of MPAs. Further platelet activation parameters were detected by using either cytometric bead arrays or quantitative immunological determination. Patients with recurrent AF (n = 20) compared to individuals without AF relapse (n = 53) were associated with an increased content of MPAs (43 ± 3% vs. 33 ± 2%, p = 0.004), as well as an increased CD41 expression on monocytes (191 ± 20 vs. 113 ± 6, p = 0.001). The level of the soluble platelet activation markers such as D-dimer, sCD40L, and sP-selectin did not differ between these groups. The content of MPAs correlated weakly with the level of sCD40L (r = 0.26, p = 0.03), but not with sP-selectin and D-dimer, whereas sP-selectin and sCD40L correlated with each other (r = 0.38, p = 0.001). Only the cellular marker of platelet activation, the content of MPAs, was increased in patients with recurrent AF after PVI. In contrast, soluble markers remained unaltered. These data indicate a distinct mechanism and level of platelet activation in AF. The clinical relevance of MPAs in identifying AF recurrence or in guiding the therapy with anticoagulants remains to be elucidated.
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Affiliation(s)
- Christian Pfluecke
- a Technische Universität Dresden, Heart Center Dresden , University Hospital , Dresden , Germany
| | - Lina Plichta
- a Technische Universität Dresden, Heart Center Dresden , University Hospital , Dresden , Germany
| | - Daniel Tarnowski
- a Technische Universität Dresden, Heart Center Dresden , University Hospital , Dresden , Germany
| | - Mathias Forkmann
- a Technische Universität Dresden, Heart Center Dresden , University Hospital , Dresden , Germany
| | - Stefan Ulbrich
- a Technische Universität Dresden, Heart Center Dresden , University Hospital , Dresden , Germany
| | - Silvio Quick
- a Technische Universität Dresden, Heart Center Dresden , University Hospital , Dresden , Germany
| | - Felix M Heidrich
- a Technische Universität Dresden, Heart Center Dresden , University Hospital , Dresden , Germany
| | - Stephan Wiedemann
- a Technische Universität Dresden, Heart Center Dresden , University Hospital , Dresden , Germany
| | - Marian Christoph
- a Technische Universität Dresden, Heart Center Dresden , University Hospital , Dresden , Germany
| | - David M Poitz
- a Technische Universität Dresden, Heart Center Dresden , University Hospital , Dresden , Germany
| | - Carsten Wunderlich
- a Technische Universität Dresden, Heart Center Dresden , University Hospital , Dresden , Germany
| | - Ruth H Strasser
- a Technische Universität Dresden, Heart Center Dresden , University Hospital , Dresden , Germany
| | - Karim Ibrahim
- a Technische Universität Dresden, Heart Center Dresden , University Hospital , Dresden , Germany
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Twarock S, Bagheri S, Bagheri S, Hohlfeld T. Platelet-vessel wall interactions and drug effects. Pharmacol Ther 2016; 167:74-84. [PMID: 27492900 DOI: 10.1016/j.pharmthera.2016.07.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Accepted: 07/16/2016] [Indexed: 01/07/2023]
Affiliation(s)
- Sören Twarock
- Institut für Pharmakologie und Klinische Pharmakologie, Heinrich-Heine-Universität Düsseldorf, Moorenstraße 5, 40225 Düsseldorf, Germany
| | - Saghar Bagheri
- Institut für Pharmakologie und Klinische Pharmakologie, Heinrich-Heine-Universität Düsseldorf, Moorenstraße 5, 40225 Düsseldorf, Germany
| | - Sayeh Bagheri
- Institut für Pharmakologie und Klinische Pharmakologie, Heinrich-Heine-Universität Düsseldorf, Moorenstraße 5, 40225 Düsseldorf, Germany
| | - Thomas Hohlfeld
- Institut für Pharmakologie und Klinische Pharmakologie, Heinrich-Heine-Universität Düsseldorf, Moorenstraße 5, 40225 Düsseldorf, Germany.
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114
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Au AE, Josefsson EC. Regulation of platelet membrane protein shedding in health and disease. Platelets 2016; 28:342-353. [PMID: 27494300 DOI: 10.1080/09537104.2016.1203401] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Extracellular proteolysis of platelet plasma membrane proteins is an event that ensues platelet activation. Shedding of surface receptors such as glycoprotein (GP) Ibα, GPV and GPVI as well as externalized proteins P-selectin and CD40L releases soluble ectodomain fragments that are subsequently detectable in plasma. This results in the irreversible functional downregulation of platelet receptor-mediated adhesive interactions and the generation of biologically active fragments. In this review, we describe molecular insights into the regulation of platelet receptor and ligand shedding in health and disease. The scope of this review is specially focused on GPIbα, GPV, GPVI, P-selectin and CD40L where we: (1) describe the basic physiological regulation of expression and shedding of these proteins in hemostasis illustrate alterations in receptor expression during (2) apoptosis and (3) ex vivo storage relevant for blood banking purposes; (4) discuss considerations to be made when analyzing and interpreting shedding of platelet membrane proteins and finally; (5) collate clinical evidence that quantify these platelet proteins during disease.
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Affiliation(s)
- Amanda E Au
- a The Walter and Eliza Hall Institute of Medical Research, Cancer & Haematology Division , 1G Royal Parade, Melbourne , Australia.,b Department of Medical Biology , The University of Melbourne , Melbourne , Australia
| | - Emma C Josefsson
- a The Walter and Eliza Hall Institute of Medical Research, Cancer & Haematology Division , 1G Royal Parade, Melbourne , Australia.,b Department of Medical Biology , The University of Melbourne , Melbourne , Australia
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115
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Rusu C, Racasan S, Moldovan D, Kacso IM, Potra A, Bondor CI, Patiu IM, Vladutiu D, Caprioara MG. Soluble CD40 ligand in haemodialysis patients: survival impact and cardiovascular prognostic role. Biomarkers 2016; 22:232-238. [PMID: 27295448 DOI: 10.1080/1354750x.2016.1201531] [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] [Indexed: 10/21/2022]
Abstract
CONTEXT Soluble CD40 ligand (sCD40l) can predict cardiovascular events (CVE) and mortality in haemodialysis (HD) patients (short-, medium-term follow-up studies). OBJECTIVE To evaluate the relationship between sCD40l and survival, CVE and mortality in HD patients on long-term follow-up. METHODS We registered 46 HD patients' baseline characteristics, mortality and CVE for 108 months. RESULTS SCD40l correlated positively with C-reactive protein, was higher in survivors, but had no impact on survival and was not predictive for CVE or CV mortality. CONCLUSION The levels of sCD40l have no influence on survival or CVE and mortality in HD patients in a long-term follow-up.
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Affiliation(s)
- Crina Rusu
- a Department of Nephrology , University of Medicine and Pharmacy "Iuliu Hatieganu", Cluj-Napoca , Romania
| | | | - Diana Moldovan
- a Department of Nephrology , University of Medicine and Pharmacy "Iuliu Hatieganu", Cluj-Napoca , Romania
| | - Ina Maria Kacso
- a Department of Nephrology , University of Medicine and Pharmacy "Iuliu Hatieganu", Cluj-Napoca , Romania
| | - Alina Potra
- a Department of Nephrology , University of Medicine and Pharmacy "Iuliu Hatieganu", Cluj-Napoca , Romania
| | - Cosmina Ioana Bondor
- c Department of Statistics , University of Medicine and Pharmacy "Iuliu Hatieganu", Cluj-Napoca , Romania
| | | | - Dan Vladutiu
- a Department of Nephrology , University of Medicine and Pharmacy "Iuliu Hatieganu", Cluj-Napoca , Romania
| | - Mirela Gherman Caprioara
- a Department of Nephrology , University of Medicine and Pharmacy "Iuliu Hatieganu", Cluj-Napoca , Romania
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Comparative and kinetic analysis of viral shedding and immunological responses in MERS patients representing a broad spectrum of disease severity. Sci Rep 2016; 6:25359. [PMID: 27146253 PMCID: PMC4857172 DOI: 10.1038/srep25359] [Citation(s) in RCA: 259] [Impact Index Per Article: 32.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2016] [Accepted: 04/15/2016] [Indexed: 12/12/2022] Open
Abstract
Despite the ongoing spread of MERS, there is limited knowledge of the factors affecting its severity and outcomes. We analyzed clinical data and specimens from fourteen MERS patients treated in a hospital who collectively represent a wide spectrum of disease severity, ranging from mild febrile illness to fatal pneumonia, and classified the patients into four groups based on severity and mortality. Comparative and kinetic analyses revealed that high viral loads, weak antibody responses, and lymphopenia accompanying thrombocytopenia were associated with disease mortality, whereas persistent and gradual increases in lymphocyte responses might be required for effective immunity against MERS-CoV infection. Leukocytosis, primarily due to increased neutrophils and monocytes, was generally observed in more severe and fatal cases. The blood levels of cytokines such as IL-10, IL-15, TGF-β, and EGF were either positively or negatively correlated with disease mortality. Robust induction of various chemokines with differential kinetics was more prominent in patients that recovered from pneumonia than in patients with mild febrile illness or deceased patients. The correlation of the virological and immunological responses with disease severity and mortality, as well as their responses to current antiviral therapy, may have prognostic significance during the early phase of MERS.
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Aloui C, Prigent A, Tariket S, Sut C, Fagan J, Cognasse F, Chakroun T, Garraud O, Laradi S. Levels of human platelet-derived soluble CD40 ligand depend on haplotypes of CD40LG-CD40-ITGA2. Sci Rep 2016; 6:24715. [PMID: 27094978 PMCID: PMC4837387 DOI: 10.1038/srep24715] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2015] [Accepted: 03/29/2016] [Indexed: 01/19/2023] Open
Abstract
Increased circulating soluble CD40 ligand (sCD40L) is commonly associated with inflammatory disorders. We aimed to investigate whether gene polymorphisms in CD40LG, CD40 and ITGA2 are associated with a propensity to secrete sCD40L; thus, we examined this issue at the level of human platelets, the principal source of sCD40L. We performed single polymorphism and haplotype analyses to test for the effect of twelve polymorphisms across the CD40LG, CD40 and ITGA2 genes in blood donors. ITGA2 presented a positive association with rs1126643, with a significant modification in sCD40L secretion (carriers of C allele, P = 0.02), unlike the investigated CD40LG and CD40 polymorphisms. One CD40LG haplotype (TGGC) showing rs975379 (C/T), rs3092952 (A/G), rs3092933 (A/G) and rs3092929 (A/C) was associated with increased sCD40L levels (1.906 μg/L (95% CI: 1.060 to 2.751); P = 0.000009). The sCD40L level was associated with the inter-chromosomal CD40LG/CD40/ITGA2 haplotype (ATC), displaying rs3092952 (A/G), rs1883832 (C/T) and rs1126643 (C/T), with increased sCD40L levels (P = 0.0135). Our results help to decipher the genetic role of CD40LG, CD40 and ITGA2 with regard to sCD40L levels found in platelet components. Given the crucial role of sCD40L, this haplotype study in a transfusion model may be helpful to further determine the role of haplotypes in inflammatory clinical settings.
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Affiliation(s)
- Chaker Aloui
- GIMAP-EA3064, University of Lyon, Saint-Etienne 42023, France.,French Blood Establishment, EFS Auvergne-Loire, Saint-Etienne 42023, France
| | - Antoine Prigent
- GIMAP-EA3064, University of Lyon, Saint-Etienne 42023, France.,French Blood Establishment, EFS Auvergne-Loire, Saint-Etienne 42023, France
| | - Sofiane Tariket
- GIMAP-EA3064, University of Lyon, Saint-Etienne 42023, France
| | - Caroline Sut
- GIMAP-EA3064, University of Lyon, Saint-Etienne 42023, France
| | - Jocelyne Fagan
- French Blood Establishment, EFS Auvergne-Loire, Saint-Etienne 42023, France
| | - Fabrice Cognasse
- GIMAP-EA3064, University of Lyon, Saint-Etienne 42023, France.,French Blood Establishment, EFS Auvergne-Loire, Saint-Etienne 42023, France
| | - Tahar Chakroun
- Regional Centre of Transfusion of Sousse, F. Hached University Hospital, Sousse 4000, Tunisia
| | - Olivier Garraud
- GIMAP-EA3064, University of Lyon, Saint-Etienne 42023, France.,National Institut of Blood Transfusion (INTS), Paris 75015, France
| | - Sandrine Laradi
- GIMAP-EA3064, University of Lyon, Saint-Etienne 42023, France.,French Blood Establishment, EFS Auvergne-Loire, Saint-Etienne 42023, France
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118
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Vena GA, Cassano N, Marzano AV, Asero R. The Role of Platelets in Chronic Urticaria. Int Arch Allergy Immunol 2016; 169:71-9. [PMID: 27035367 DOI: 10.1159/000444085] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2015] [Accepted: 01/18/2016] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Platelets are implicated in many pathophysiological processes, including inflammation and immunity. Ever-growing evidence suggests the active involvement of platelets in the pathogenesis of various inflammatory disorders, including cutaneous inflammatory diseases. A limited number of studies have investigated the role of platelets in chronic urticaria (CU). In this review, we summarize the current knowledge regarding the role of platelets in chronic spontaneous and inducible urticarias. METHODS A literature search was performed using PubMed and Google Scholar, and the references of relevant literature were reviewed. RESULTS Overall, in CU patients, conflicting results have been obtained from the assessment of platelet indices, such as mean platelet volume, platelet count and distribution width, as well as markers of platelet aggregation and activation. Nevertheless, a few studies showed significant changes of such parameters in CU patients compared to controls, in apparent correlation with clinical severity, autoreactivity and/or inflammatory status. CONCLUSIONS In the absence of definitive conclusions, the pathogenic role of platelets in CU needs to be further explored. Platelets might represent a link between inflammation, coagulation and histamine release in the pathophysiological network of CU.
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Affiliation(s)
- Gino Antonio Vena
- Dermatology and Venereology Private Practice, Bari and Barletta, Italy
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119
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Tariket S, Sut C, Hamzeh-Cognasse H, Laradi S, Pozzetto B, Garraud O, Cognasse F. Transfusion-related acute lung injury: transfusion, platelets and biological response modifiers. Expert Rev Hematol 2016; 9:497-508. [DOI: 10.1586/17474086.2016.1152177] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
| | | | | | - Sandrine Laradi
- Université de Lyon, Saint Etienne, France
- Etablissement Français du Sang - Rhônes-Alpes-Auvergne, Saint-Etienne, France
| | | | - Olivier Garraud
- Université de Lyon, Saint Etienne, France
- INTS - Institut National de la Transfusion Sanguine, Paris, France
| | - Fabrice Cognasse
- Université de Lyon, Saint Etienne, France
- Etablissement Français du Sang - Rhônes-Alpes-Auvergne, Saint-Etienne, France
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120
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Simic D, Bogdan N, Teng F, Otieno M. Blocking α5β1 Integrin Attenuates sCD40L-Mediated Platelet Activation. Clin Appl Thromb Hemost 2015; 23:607-614. [PMID: 26719354 DOI: 10.1177/1076029615624549] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
The soluble form of CD40L (sCD40L) is a platelet-derived mediator that links inflammation, hemostasis, and vascular dysfunction. Indeed, blockade of CD40L by neutralizing antibodies or genetic disruption in mice prevents atherosclerosis and atherothrombosis. Until recently, it was believed that CD40 and αIIbβ3 were the only receptors on platelets responsible for binding sCD40L, leading to platelet activation and initiation of thrombotic events. Recent findings showed α5β1 integrin as a novel platelet sCD40L receptor, with an unknown function. For the first time, using anti-α5β1 blocking antibodies, we show that sCD40L/α5β1 interaction leads to platelet activation as evaluated in the human whole blood. Establishing α5β1 integrin's role in platelet activation, and therefore thrombosis will help further shed light on the etiology of thrombotic disease.
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Affiliation(s)
- Damir Simic
- 1 Preclinical Development & Safety, Janssen Research & Development, LLC, Spring House, PA, USA
| | - Nancy Bogdan
- 1 Preclinical Development & Safety, Janssen Research & Development, LLC, Spring House, PA, USA
| | - Fang Teng
- 2 Biologics Discovery Sciences, Spring House, Janssen Research & Development, LLC, PA, USA
| | - Monicah Otieno
- 1 Preclinical Development & Safety, Janssen Research & Development, LLC, Spring House, PA, USA
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121
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Cardiovascular and Hepatic Toxicity of Cocaine: Potential Beneficial Effects of Modulators of Oxidative Stress. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2015; 2016:8408479. [PMID: 26823954 PMCID: PMC4707355 DOI: 10.1155/2016/8408479] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 08/07/2015] [Revised: 10/19/2015] [Accepted: 11/01/2015] [Indexed: 12/20/2022]
Abstract
Oxidative stress (OS) is thought to play an important role in the pharmacological and toxic effects of various drugs of abuse. Herein we review the literature on the mechanisms responsible for the cardiovascular and hepatic toxicity of cocaine with special focus on OS-related mechanisms. We also review the preclinical and clinical literature concerning the putative therapeutic effects of OS modulators (such as N-acetylcysteine, superoxide dismutase mimetics, nitroxides and nitrones, NADPH oxidase inhibitors, xanthine oxidase inhibitors, and mitochondriotropic antioxidants) for the treatment of cocaine toxicity. We conclude that available OS modulators do not appear to have clinical efficacy.
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123
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Garraud O, Hamzeh-Cognasse H, Laradi S, Pozzetto B, Cognasse F. Transfusion et inflammation : hier – aujourd’hui – demain. Transfus Clin Biol 2015; 22:168-77. [DOI: 10.1016/j.tracli.2015.03.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2014] [Indexed: 12/11/2022]
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