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152
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Liu Q, Rojas-Canales DM, Divito SJ, Shufesky WJ, Stolz DB, Erdos G, Sullivan MLG, Gibson GA, Watkins SC, Larregina AT, Morelli AE. Donor dendritic cell-derived exosomes promote allograft-targeting immune response. J Clin Invest 2016; 126:2805-20. [PMID: 27348586 DOI: 10.1172/jci84577] [Citation(s) in RCA: 227] [Impact Index Per Article: 28.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2015] [Accepted: 05/04/2016] [Indexed: 12/11/2022] Open
Abstract
The immune response against transplanted allografts is one of the most potent reactions mounted by the immune system. The acute rejection response has been attributed to donor dendritic cells (DCs), which migrate to recipient lymphoid tissues and directly activate alloreactive T cells against donor MHC molecules. Here, using a murine heart transplant model, we determined that only a small number of donor DCs reach lymphoid tissues and investigated how this limited population of donor DCs efficiently initiates the alloreactive T cell response that causes acute rejection. In our mouse model, efficient passage of donor MHC molecules to recipient conventional DCs (cDCs) was dependent on the transfer of extracellular vesicles (EVs) from donor DCs that migrated from the graft to lymphoid tissues. These EVs shared characteristics with exosomes and were internalized or remained attached to the recipient cDCs. Recipient cDCs that acquired exosomes became activated and triggered full activation of alloreactive T cells. Depletion of recipient cDCs after cardiac transplantation drastically decreased presentation of donor MHC molecules to directly alloreactive T cells and delayed graft rejection in mice. These findings support a key role for transfer of donor EVs in the generation of allograft-targeting immune responses and suggest that interrupting this process has potential to dampen the immune response to allografts.
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153
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Prudent M, Stauber F, Rapin A, Hallen S, Pham N, Abonnenc M, Marvin L, Rochat B, Tissot JD, Lion N. Small-Scale Perfusion Bioreactor of Red Blood Cells for Dynamic Studies of Cellular Pathways: Proof-of-Concept. Front Mol Biosci 2016; 3:11. [PMID: 27066491 PMCID: PMC4812044 DOI: 10.3389/fmolb.2016.00011] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Accepted: 03/09/2016] [Indexed: 01/17/2023] Open
Abstract
To date, the development of bioreactors for the study of red blood cells (RBCs, daily transfused in the case of disease or hemorrhage) has focused on hematopoietic stem cells. Despite the fact that mature RBCs are enucleated and do not expand, they possess complex cellular and metabolic pathways, as well as post-translation modification signaling and gas-exchange regulation. In order to dynamically study the behavior of RBCs and their signaling pathways under various conditions, a small-scale perfusion bioreactor has been developed. The most advanced design developed here consists of a fluidized bed of 7.6 mL containing 3·109 cells and perfused at 8.5 μL/min. Mimicking RBC storage conditions in transfusion medicine, as a proof-of-concept, we investigated the ex vivo aging of RBCs under both aerobic and anaerobic conditions. Hence, RBCs stored in saline-adenine-glucose-mannitol (SAGM) were injected in parallel into two bioreactors and perfused with a modified SAGM solution over 14 days at room temperature under air or argon. The formation of a fluidized bed enabled easy sampling of the extracellular medium over the storage period used for the quantitation of glucose consumption and lactate production. Hemolysis and microvesiculation increased during aging and were reduced under anaerobic (argon) conditions, which is consistent with previously reported findings. Glucose and lactate levels showed expected trends, i.e., decreased and increased during the 2-week period, respectively; whereas extracellular glucose consumption was higher under aerobic conditions. Metabolomics showed depletion of glycolsis and pentose phosphate pathway metabolites, and an accumulation of purine metabolite end-products. This novel approach, which takes advantage of a fluidized bed of cells in comparison to traditional closed bags or tubes, does not require agitation and limit shear stress, and constantly segragates extracellular medium from RBCs. It thus gives access to several difficult-to-obtain on- and off-line parameters in the extracellular medium. This dynamic bioreactor system does not only allow us to probe the behavior of RBCs under different storage conditions, but it also could be a powerful tool to study physiological or pathological RBCs exposed to various conditions and stimuli.
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Affiliation(s)
- Michel Prudent
- Laboratoire de Recherche sur les Produits Sanguins, Recherche et Développement, Transfusion Interrégionale CRS Epalinges, Switzerland
| | - Frédéric Stauber
- Laboratoire de Recherche sur les Produits Sanguins, Recherche et Développement, Transfusion Interrégionale CRS Epalinges, Switzerland
| | - Alexis Rapin
- Laboratoire de Recherche sur les Produits Sanguins, Recherche et Développement, Transfusion Interrégionale CRS Epalinges, Switzerland
| | - Sonia Hallen
- Laboratoire de Recherche sur les Produits Sanguins, Recherche et Développement, Transfusion Interrégionale CRS Epalinges, Switzerland
| | - Nicole Pham
- Laboratoire de Recherche sur les Produits Sanguins, Recherche et Développement, Transfusion Interrégionale CRS Epalinges, Switzerland
| | - Mélanie Abonnenc
- Laboratoire de Recherche sur les Produits Sanguins, Recherche et Développement, Transfusion Interrégionale CRS Epalinges, Switzerland
| | - Laure Marvin
- Laboratoire de Recherche sur les Produits Sanguins, Recherche et Développement, Transfusion Interrégionale CRSEpalinges, Switzerland; Quantitative Mass Spectrometry Facility, Centre Hospitalier Universitaire Vaudois (CHUV)Lausanne, Switzerland
| | - Bertrand Rochat
- Quantitative Mass Spectrometry Facility, Centre Hospitalier Universitaire Vaudois (CHUV) Lausanne, Switzerland
| | - Jean-Daniel Tissot
- Laboratoire de Recherche sur les Produits Sanguins, Recherche et Développement, Transfusion Interrégionale CRS Epalinges, Switzerland
| | - Niels Lion
- Laboratoire de Recherche sur les Produits Sanguins, Recherche et Développement, Transfusion Interrégionale CRS Epalinges, Switzerland
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154
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Helmke A, von Vietinghoff S. Extracellular vesicles as mediators of vascular inflammation in kidney disease. World J Nephrol 2016; 5:125-38. [PMID: 26981436 PMCID: PMC4777783 DOI: 10.5527/wjn.v5.i2.125] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/28/2015] [Revised: 12/18/2015] [Accepted: 01/08/2016] [Indexed: 02/06/2023] Open
Abstract
Vascular inflammation is a common cause of renal impairment and a major cause of morbidity and mortality of patients with kidney disease. Current studies consistently show an increase of extracellular vesicles (EVs) in acute vasculitis and in patients with atherosclerosis. Recent research has elucidated mechanisms that mediate vascular wall leukocyte accumulation and differentiation. This review addresses the role of EVs in this process. Part one of this review addresses functional roles of EVs in renal vasculitis. Most published data address anti-neutrophil cytoplasmic antibody (ANCA) associated vasculitis and indicate that the number of EVs, mostly of platelet origin, is increased in active disease. EVs generated from neutrophils by activation by ANCA can contribute to vessel damage. While EVs are also elevated in other types of autoimmune vasculitis with renal involvement such as systemic lupus erythematodes, functional consequences beyond intravascular thrombosis remain to be established. In typical hemolytic uremic syndrome secondary to infection with shiga toxin producing Escherichia coli, EV numbers are elevated and contribute to toxin distribution into the vascular wall. Part two addresses mechanisms how EVs modulate vascular inflammation in atherosclerosis, a process that is aggravated in uremia. Elevated numbers of circulating endothelial EVs were associated with atherosclerotic complications in a number of studies in patients with and without kidney disease. Uremic endothelial EVs are defective in induction of vascular relaxation. Neutrophil adhesion and transmigration and intravascular thrombus formation are critically modulated by EVs, a process that is amenable to therapeutic interventions. EVs can enhance monocyte adhesion to the endothelium and modulate macrophage differentiation and cytokine production with major influence on the local inflammatory milieu in the plaque. They significantly influence lipid phagocytosis and antigen presentation by mononuclear phagocytes. Finally, platelet, erythrocyte and monocyte EVs cooperate in shaping adaptive T cell immunity. Future research is needed to define changes in uremic EVs and their differential effects on inflammatory leukocytes in the vessel wall.
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155
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Bakkour S, Acker JP, Chafets DM, Inglis HC, Norris PJ, Lee TH, Busch MP. Manufacturing method affects mitochondrial DNA release and extracellular vesicle composition in stored red blood cells. Vox Sang 2016; 111:22-32. [PMID: 26918437 DOI: 10.1111/vox.12390] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2015] [Revised: 01/15/2016] [Accepted: 01/19/2016] [Indexed: 12/23/2022]
Abstract
BACKGROUND AND OBJECTIVES Damage-associated molecular patterns (DAMPs) are found in transfusion products, but their potential impacts are not fully understood. We examined the influence of manufacturing method on levels of mitochondrial (mt) DNA and extracellular vesicle (EV) DAMPs in red cell concentrates (RCCs). MATERIALS AND METHODS Eighty-seven RCCs were prepared using nine different methods (6-15 units/method), including three apheresis, five whole blood (WB)-derived leucoreduced (LR) and one WB-derived non-LR method. On storage days 5 and 42, levels of mtDNA (by PCR) and number and cell of origin of EVs (by flow cytometry) were assessed in RCC supernatants. RESULTS There was a 100-fold difference in mtDNA levels among methods, with highest levels in non-LR, followed by MCS+ and Trima apheresis RCCs. There was a 10-fold difference in EV levels among methods. RBC-derived CD235a+ EVs were found in fresh RCCs and increased in most during storage. Platelet-derived CD41a+ EVs were highest in non-LR and Trima RCCs and did not change during storage. WBC-derived EVs were low in most RCCs; CD14+ EVs increased in several RCCs during storage. CONCLUSION DAMPs in RCCs vary by manufacturing method. MtDNA and EV could be informative quality markers that may be relevant to RCC immunomodulatory potential.
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Affiliation(s)
- S Bakkour
- Blood Systems Research Institute, San Francisco, CA, USA
| | - J P Acker
- Canadian Blood Services Centre for Innovation, Edmonton, AB, Canada.,Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB, Canada
| | - D M Chafets
- Blood Systems Research Institute, San Francisco, CA, USA
| | - H C Inglis
- Blood Systems Research Institute, San Francisco, CA, USA
| | - P J Norris
- Blood Systems Research Institute, San Francisco, CA, USA.,Department of Laboratory Medicine, University of California, San Francisco, CA, USA.,Department of Medicine, University of California, San Francisco, CA, USA
| | - T-H Lee
- Blood Systems Research Institute, San Francisco, CA, USA
| | - M P Busch
- Blood Systems Research Institute, San Francisco, CA, USA.,Department of Laboratory Medicine, University of California, San Francisco, CA, USA
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156
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Elayeb R, Tamagne M, Bierling P, Noizat-Pirenne F, Vingert B. Red blood cell alloimmunization is influenced by the delay between Toll-like receptor agonist injection and transfusion. Haematologica 2016; 101:209-18. [PMID: 26430173 PMCID: PMC4938341 DOI: 10.3324/haematol.2015.134171] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2015] [Accepted: 10/01/2015] [Indexed: 11/09/2022] Open
Abstract
Murine models of red blood cell transfusion show that inflammation associated with viruses or methylated DNA promotes red blood cell alloimmunization. In vaccination studies, the intensity of antigen-specific responses depends on the delay between antigen and adjuvant administration, with a short delay limiting immune responses. In mouse models of alloimmunization, the delay between the injection of Toll-like receptor agonists and transfusion is usually short. In this study, we hypothesized that the timing of Toll-like receptor 3 agonist administration affects red blood cell alloimmunization. Poly(I:C), a Toll-like receptor 3 agonist, was administered to B10BR mice at various time points before the transfusion of HEL-expressing red blood cells. For each time point, we measured the activation of splenic HEL-presenting dendritic cells, HEL-specific CD4(+) T cells and anti-HEL antibodies in serum. The phenotype of activated immune cells depended on the delay between transfusion and Toll-like receptor-dependent inflammation. The production of anti-HEL antibodies was highest when transfusion occurred 7 days after agonist injection. The proportion of HEL-presenting CD8α(+) dendritic cells producing interleukin-12 was highest in mice injected with poly(I:C) 3 days before transfusion. Although the number of early-induced HEL-specific CD4(+) T cells was similar between groups, a high proportion of these cells expressed CD134, CD40 and CD44 in mice injected with poly(I:C) 7 days before transfusion. This study clearly shows that the delay between transfusion and Toll-like receptor-induced inflammation influences the immune response to transfused red blood cells.
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Affiliation(s)
- Rahma Elayeb
- Établissement Français du Sang, Créteil, France Institut Mondor de Recherche Biomédicale, lnserm U955, Equipe 2, Créteil, France Laboratory of Excellence GR-Ex, Paris, France
| | - Marie Tamagne
- Établissement Français du Sang, Créteil, France Institut Mondor de Recherche Biomédicale, lnserm U955, Equipe 2, Créteil, France Laboratory of Excellence GR-Ex, Paris, France
| | - Philippe Bierling
- Établissement Français du Sang, Créteil, France Institut Mondor de Recherche Biomédicale, lnserm U955, Equipe 2, Créteil, France Université Paris Est, Faculté de Médecine, Créteil, France Laboratory of Excellence GR-Ex, Paris, France
| | - France Noizat-Pirenne
- Établissement Français du Sang, Créteil, France Institut Mondor de Recherche Biomédicale, lnserm U955, Equipe 2, Créteil, France Université Paris Est, Faculté de Médecine, Créteil, France Laboratory of Excellence GR-Ex, Paris, France
| | - Benoît Vingert
- Établissement Français du Sang, Créteil, France Institut Mondor de Recherche Biomédicale, lnserm U955, Equipe 2, Créteil, France Laboratory of Excellence GR-Ex, Paris, France
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157
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New molecular insights in diabetic nephropathy. Int Urol Nephrol 2016; 48:373-87. [PMID: 26759327 DOI: 10.1007/s11255-015-1203-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2015] [Accepted: 12/25/2015] [Indexed: 12/15/2022]
Abstract
Diabetes mellitus represents one of the major causes of functional kidney impairment. The review highlights the most significant steps made over the last decades in understanding the molecular basis of diabetic nephropathy (DN), which may provide reliable biomarkers for early diagnosis and prognosis, along with new molecular targets for personalized medicine. There is an increased interest in developing new therapeutic strategies to slow DN progression for improving patients' quality of life and reducing all-cause morbidity and disease-associated mortality. It is highly important to have a science-based medical attitude when facing diabetic patients with associated comorbidities and risk of rapid evolution toward end-stage renal disease. The data discussed herein were mainly from MEDLINE and PubMed articles published in English from 1990 to 2015 and from up-to-date. The search term was "diabetic nephropathy and oxidative stress".
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158
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Evans SM, Putt M, Yang XY, Lustig RA, Martinez-Lage M, Williams D, Desai A, Wolf R, Brem S, Koch CJ. Initial evidence that blood-borne microvesicles are biomarkers for recurrence and survival in newly diagnosed glioblastoma patients. J Neurooncol 2016; 127:391-400. [PMID: 26746692 DOI: 10.1007/s11060-015-2051-3] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2015] [Accepted: 12/21/2015] [Indexed: 01/23/2023]
Abstract
The purpose of this pilot study was to determine whether blood-borne microvesicles from newly diagnosed glioblastoma patients could be used as biomarkers. We collected 2.8 mL blood from 16 post-operative patients at the time that they were being simulated for chemoradiation therapy (radiation with concurrent temozolomide). Two additional samples were collected during chemoradiation therapy and a final sample was collected at the end of chemoradiation therapy. Patients continued with the therapy suggested by their physicians, based on tumor conference consensus and were followed for recurrence and overall survival. Microvesicles were isolated using serial centrifugation and stained for surface markers (Annexin V for phosphotidyl serine, CD41 for platelets, anti-EGFR for tumor cells, and CD235 for red blood cells). Flow cytometry analysis was performed. Our findings provide initial evidence that increases in Annexin V positive microvesicle levels during chemoradiation therapy are associated with earlier recurrence and shorter overall survival in newly diagnosed glioblastoma patients. The effect is dramatic, with over a four-fold increase in the hazard ratio for an individual at the 75th versus the 25th percentile. Moreover the pattern of Annexin V positive microvesicles remain significant after adjustment for confounding clinical variables that have previously been shown to be prognostic for recurrence and survival. Inclusion of neutrophil levels at the start of chemoradiation therapy in the model yielded the largest attenuation of the observed association. Further studies will be needed to verify and further investigate the association between these two entities.
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Affiliation(s)
- Sydney M Evans
- Department of Radiation Oncology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
| | - Mary Putt
- Department of Biostatistics and Epidemiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Xiang-Yang Yang
- Department of Radiation Oncology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Robert A Lustig
- Department of Radiation Oncology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Maria Martinez-Lage
- Department of Pathology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Dewight Williams
- Department of Biochemistry and Biophysics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Arati Desai
- Department of Hematology/Oncology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Ronald Wolf
- Department of Radiation Oncology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.,Department of Biostatistics and Epidemiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.,Department of Pathology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.,Department of Hematology/Oncology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.,Department of Biochemistry and Biophysics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.,Department of Neurosurgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.,Department of Radiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Steven Brem
- Department of Neurosurgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Cameron J Koch
- Department of Radiation Oncology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
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159
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Lener T, Gimona M, Aigner L, Börger V, Buzas E, Camussi G, Chaput N, Chatterjee D, Court FA, Del Portillo HA, O'Driscoll L, Fais S, Falcon-Perez JM, Felderhoff-Mueser U, Fraile L, Gho YS, Görgens A, Gupta RC, Hendrix A, Hermann DM, Hill AF, Hochberg F, Horn PA, de Kleijn D, Kordelas L, Kramer BW, Krämer-Albers EM, Laner-Plamberger S, Laitinen S, Leonardi T, Lorenowicz MJ, Lim SK, Lötvall J, Maguire CA, Marcilla A, Nazarenko I, Ochiya T, Patel T, Pedersen S, Pocsfalvi G, Pluchino S, Quesenberry P, Reischl IG, Rivera FJ, Sanzenbacher R, Schallmoser K, Slaper-Cortenbach I, Strunk D, Tonn T, Vader P, van Balkom BWM, Wauben M, Andaloussi SE, Théry C, Rohde E, Giebel B. Applying extracellular vesicles based therapeutics in clinical trials - an ISEV position paper. J Extracell Vesicles 2015; 4:30087. [PMID: 26725829 PMCID: PMC4698466 DOI: 10.3402/jev.v4.30087] [Citation(s) in RCA: 975] [Impact Index Per Article: 108.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2015] [Revised: 12/11/2015] [Accepted: 12/13/2015] [Indexed: 02/06/2023] Open
Abstract
Extracellular vesicles (EVs), such as exosomes and microvesicles, are released by different cell types and participate in physiological and pathophysiological processes. EVs mediate intercellular communication as cell-derived extracellular signalling organelles that transmit specific information from their cell of origin to their target cells. As a result of these properties, EVs of defined cell types may serve as novel tools for various therapeutic approaches, including (a) anti-tumour therapy, (b) pathogen vaccination, (c) immune-modulatory and regenerative therapies and (d) drug delivery. The translation of EVs into clinical therapies requires the categorization of EV-based therapeutics in compliance with existing regulatory frameworks. As the classification defines subsequent requirements for manufacturing, quality control and clinical investigation, it is of major importance to define whether EVs are considered the active drug components or primarily serve as drug delivery vehicles. For an effective and particularly safe translation of EV-based therapies into clinical practice, a high level of cooperation between researchers, clinicians and competent authorities is essential. In this position statement, basic and clinical scientists, as members of the International Society for Extracellular Vesicles (ISEV) and of the European Cooperation in Science and Technology (COST) program of the European Union, namely European Network on Microvesicles and Exosomes in Health and Disease (ME-HaD), summarize recent developments and the current knowledge of EV-based therapies. Aspects of safety and regulatory requirements that must be considered for pharmaceutical manufacturing and clinical application are highlighted. Production and quality control processes are discussed. Strategies to promote the therapeutic application of EVs in future clinical studies are addressed.
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Affiliation(s)
- Thomas Lener
- Spinal Cord Injury & Tissue Regeneration Center Salzburg (SCI-TReCS), Paracelsus Medical University (PMU), Salzburg, Austria
- Department of Blood Group Serology and Transfusion Medicine, University Hospital, Salzburger Landeskliniken GesmbH (SALK), Salzburg, Austria
| | - Mario Gimona
- Spinal Cord Injury & Tissue Regeneration Center Salzburg (SCI-TReCS), Paracelsus Medical University (PMU), Salzburg, Austria
- Department of Blood Group Serology and Transfusion Medicine, University Hospital, Salzburger Landeskliniken GesmbH (SALK), Salzburg, Austria
| | - Ludwig Aigner
- Spinal Cord Injury & Tissue Regeneration Center Salzburg (SCI-TReCS), Paracelsus Medical University (PMU), Salzburg, Austria
| | - Verena Börger
- Institute for Transfusion Medicine, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Edit Buzas
- Department of Genetics, Cell- and Immunobiology, Semmelweis University, Budapest, Hungary
| | - Giovanni Camussi
- Molecular Biotechnology Center, Department of Medical Sciences, University of Turin, Turin, Italy
| | - Nathalie Chaput
- Laboratory of Immunomonitoring in Oncology, UMS 3655 CNRS/US23 Inserm, Villejuif, France
- Centre of Clinical Investigation in Biotherapy CICBT 1248, Institut Gustave Roussy, Villejuif, France
| | - Devasis Chatterjee
- Division of Hematology & Oncology, Rhode Island Hospital, Providence, RI, USA
- The Alpert Medical School of Brown University, Providence, RI, USA
| | - Felipe A Court
- Department of Physiology, Faculty of Biology, Pontificia-Universidad Católica de Chile, Santiago, Chile
| | - Hernando A Del Portillo
- ICREA at Barcelona Centre for International Health Research (CRESIB), Hospital Clínic - Universitat de Barcelona, Barcelona, Spain
- Institut d'Investigació Germans Trias i Pujol (IGTP), Badalona, Spain
| | - Lorraine O'Driscoll
- School of Pharmacy and Pharmaceutical Sciences, Trinity College Dublin, Dublin 2, Ireland
- Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland
| | - Stefano Fais
- Anti-Tumor Drugs Section, Department of Therapeutic Research and Medicines Evaluation, National Institute of Health (ISS), Rome, Italy
| | - Juan M Falcon-Perez
- Metabolomics Unit, CIC bioGUNE, CIBERehd, Bizkaia Technology Park, Derio, Spain
- IKERBASQUE, Basque Foundation for Science, Bilbao, Spain
| | - Ursula Felderhoff-Mueser
- Department of Paediatrics I, Neonatology, University Hospital Essen, University Duisburg-Essen, Essen, Germany
| | - Lorenzo Fraile
- Departament de Producció Animal, ETSEA, Universitat de Lleida, Lleida, Spain
| | - Yong Song Gho
- Department of Life Sciences, Pohang University of Science and Technology, Pohang, Republic of Korea
| | - André Görgens
- Institute for Transfusion Medicine, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Ramesh C Gupta
- Department of Pharmacology and Toxicology, University of Louisville, Louisville, KY, USA
- James Graham Brown Cancer Center, University of Louisville, Louisville, KY, USA
| | - An Hendrix
- Laboratory of Experimental Cancer Research, Department of Radiation Oncology and Experimental Cancer Research, Ghent University Hospital, Ghent, Belgium
| | - Dirk M Hermann
- Department of Neurology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Andrew F Hill
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Australia
| | | | - Peter A Horn
- Institute for Transfusion Medicine, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | | | - Lambros Kordelas
- Department of Bone Marrow Transplantation, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Boris W Kramer
- Experimental Perinatology/Neonatology, School of Mental Health and Neuroscience, School of Oncology and Developmental Biology, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Eva-Maria Krämer-Albers
- Molecular Cell Biology and Focus Program Translational Neurosciences, University of Mainz, Mainz, Germany
| | - Sandra Laner-Plamberger
- Spinal Cord Injury & Tissue Regeneration Center Salzburg (SCI-TReCS), Paracelsus Medical University (PMU), Salzburg, Austria
- Department of Blood Group Serology and Transfusion Medicine, University Hospital, Salzburger Landeskliniken GesmbH (SALK), Salzburg, Austria
| | - Saara Laitinen
- Research and Cell Services, Finnish Red Cross Blood Service, Helsinki, Finland
| | - Tommaso Leonardi
- Division of Stem Cell Neurobiology, Department of Clinical Neurosciences, Wellcome Trust-Medical Research Council Stem Cell Institute, University of Cambridge, Cambridge, UK
- European Molecular Biology Laboratory, European Bioinformatics Institute (EMBL-EBI), Cambridge, UK
| | - Magdalena J Lorenowicz
- Department of Cell Biology, Center for Molecular Medicine, University Medical Center, Utrecht, The Netherlands
| | - Sai Kiang Lim
- Institute of Medical Biology, Agency for Science Technology and Research (A*STAR), Singapore, Singapore
| | - Jan Lötvall
- Krefting Research Centre, Institute of Medicine, the Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Casey A Maguire
- Harvard Medical School, Massachusetts General Hospital, Boston, MA, USA
| | - Antonio Marcilla
- Dpto. Biología Celular y Parasitologia, Facultat de Farmacia, Universitat de Valencia, Valencia, Spain
- Joint Research Unit on Endocrinology, Nutrition and Clinical Dietetics, Universitat de València-Health Research Institute La Fe, Valencia, Spain
| | - Irina Nazarenko
- Institute for Environmental Health Sciences and Hospital Infection Control Medical Center, University of Freiburg, Freiburg im Breisgau, Germany
| | - Takahiro Ochiya
- Division of Molecular and Cellular Medicine, National Cancer Center Research Institute, Tokyo, Japan
| | - Tushar Patel
- Departments of Transplantation and Cancer Biology, Mayo Clinic, Jacksonville, FL, USA
| | - Shona Pedersen
- Centre for Cardiovascular Research, Department of Clinical Biochemistry, Aalborg University Hospital, Aalborg University, Aalborg, Denmark
| | - Gabriella Pocsfalvi
- Mass Spectrometry and Proteomics, Institute of Biosciences and BioResources, National Research Council of Italy, Naples, Italy
| | - Stefano Pluchino
- Division of Stem Cell Neurobiology, Department of Clinical Neurosciences, Wellcome Trust-Medical Research Council Stem Cell Institute, University of Cambridge, Cambridge, UK
| | - Peter Quesenberry
- Division of Hematology & Oncology, Rhode Island Hospital, Providence, RI, USA
- The Alpert Medical School of Brown University, Providence, RI, USA
| | - Ilona G Reischl
- BASG - Bundesamt für Sicherheit im Gesundheitswesen - Federal Office for Safety in Health Care, AGES - Agentur für Gesundheit und Ernährungssicherheit - Austrian Agency for Health and Food Safety, Institut Überwachung - Institute Surveillance, Wien, Austria
| | - Francisco J Rivera
- Institute of Molecular Regenerative Medicine, Spinal Cord Injury & Tissue Regeneration Center Salzburg (SCI-TReCS), Paracelsus Medical University (PMU), Salzburg, Austria
| | - Ralf Sanzenbacher
- Ralf Sanzenbacher, Paul-Ehrlich-Institut, Bundesinstitut für Impfstoffe und biomedizinische Arzneimittel, Federal Institute for Vaccines and Biomedicines, Langen, Germany
| | - Katharina Schallmoser
- Spinal Cord Injury & Tissue Regeneration Center Salzburg (SCI-TReCS), Paracelsus Medical University (PMU), Salzburg, Austria
- Department of Blood Group Serology and Transfusion Medicine, University Hospital, Salzburger Landeskliniken GesmbH (SALK), Salzburg, Austria
| | - Ineke Slaper-Cortenbach
- Cell Therapy Facility, Department of Clinical Pharmacy, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Dirk Strunk
- Experimental & Clinical Cell Therapy Institute, Spinal Cord Injury & Tissue Regeneration Center Salzburg (SCI-TReCS), Paracelsus Medical University, Salzburg, Austria
| | - Torsten Tonn
- Institute for Transfusion Medicine Dresden, German Red Cross Blood Donation Service North-East, Dresden, Germany
| | - Pieter Vader
- Laboratory of Clinical Chemistry and Hematology, University Medical Center Utrecht, Utrecht, The Netherlands
- Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford, UK
| | - Bas W M van Balkom
- Department of Nephrology and Hypertension, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Marca Wauben
- Department of Biochemistry and Cell Biology, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - Samir El Andaloussi
- Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford, UK
- Department of Laboratory Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Clotilde Théry
- Centre of Clinical Investigation in Biotherapy CICBT 1248, Institut Gustave Roussy, Villejuif, France
- INSERM U932, Institut Curie, Paris, France
| | - Eva Rohde
- Spinal Cord Injury & Tissue Regeneration Center Salzburg (SCI-TReCS), Paracelsus Medical University (PMU), Salzburg, Austria
- Department of Blood Group Serology and Transfusion Medicine, University Hospital, Salzburger Landeskliniken GesmbH (SALK), Salzburg, Austria;
| | - Bernd Giebel
- Institute for Transfusion Medicine, University Hospital Essen, University of Duisburg-Essen, Essen, Germany;
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160
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Liu H, Gao W, Yuan J, Wu C, Yao K, Zhang L, Ma L, Zhu J, Zou Y, Ge J. Exosomes derived from dendritic cells improve cardiac function via activation of CD4(+) T lymphocytes after myocardial infarction. J Mol Cell Cardiol 2015; 91:123-33. [PMID: 26746143 DOI: 10.1016/j.yjmcc.2015.12.028] [Citation(s) in RCA: 106] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2015] [Revised: 12/25/2015] [Accepted: 12/28/2015] [Indexed: 01/10/2023]
Abstract
CD4(+) T cell activation plays a key role in facilitating wound healing after myocardial infarction (MI). Exosomes (EXs) secreted from dendritic cells (DCs) can activate T cells in tumor models; however, whether DEXs (DC-EXs) can mediate CD4(+) T cell activation and improve wound healing post-MI remains unknown. This study sought to determine whether DEXs mediate CD4(+) T cell activation and improve cardiac function post-MI in mice. We used supernatants of hypoxic primary or necrotic HL-1 cardiomyocytes to simulate the post-MI cardiomyocyte microenvironment in vitro. Cultured bone marrow-derived DCs (BMDCs) from mice were stimulated with the supernatants of normal (Control group), hypoxic primary or necrotic HL-1 cardiomyocytes (MI group); a subset of BMDCs remained unstimulated (Negative group). DEXs were then isolated from the BMDC supernatants and either incubated with CD4(+) T cells or injected into mice via the tail vein. In this study, we found that the supernatants of both hypoxic primary and necrotic HL-1 cardiomyocytes upregulate DC maturation markers. After the injection of DEXs, a greater number of MI-DEXs are recruited by the mouse spleen and with greater rapidity than control- or negative-DEXs. Confocal imaging and flow cytometry revealed that MI-DEXs exhibited higher uptake by splenic CD4(+) T cells than the control- and negative-DEXs, and this increase was correlated with significantly greater increases in the expression of chemokines and the inflammatory cytokines IFN-γ and TNF by the CD4(+) T cells in vitro and in vivo. In addition, the injection of MI-DEXs improved cardiac function in mice post-MI. These results suggest that DEXs could mediate the activation of CD4(+) T cells through an endocrine mechanism and improve cardiac function post-MI. Our findings provide the basis for a novel strategy for the treatment of MI through the systemic delivery of DEXs.
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Affiliation(s)
- Haibo Liu
- Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, 200032 Shanghai, PR China; Department of Cardiology, Yinzhou People's Hospital Affiliated with the Medical School of Ningbo University, 315040 Ningbo; PR China.
| | - Wei Gao
- Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, 200032 Shanghai, PR China.
| | - Jie Yuan
- Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, 200032 Shanghai, PR China.
| | - Chaoneng Wu
- Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, 200032 Shanghai, PR China.
| | - Kang Yao
- Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, 200032 Shanghai, PR China.
| | - Li Zhang
- Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, 200032 Shanghai, PR China.
| | - Leilei Ma
- Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, 200032 Shanghai, PR China.
| | - Jianbing Zhu
- Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, 200032 Shanghai, PR China.
| | - Yunzeng Zou
- Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, 200032 Shanghai, PR China.
| | - Junbo Ge
- Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, 200032 Shanghai, PR China.
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161
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Weiss R, Eichhorn T, Spittler A, Mičušík M, Fischer MB, Weber V. Release and cellular origin of extracellular vesicles during circulation of whole blood over adsorbent polymers for lipid apheresis. J Biomed Mater Res B Appl Biomater 2015; 105:636-646. [PMID: 26671881 DOI: 10.1002/jbm.b.33588] [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] [Received: 08/12/2015] [Revised: 11/15/2015] [Accepted: 11/18/2015] [Indexed: 11/09/2022]
Abstract
Whole blood lipid apheresis is clinically applied in patients with familial hypercholesterolemia to reduce low density lipoprotein and other apolipoprotein B 100 containing lipoproteins. Here, the hemocompatibility of two polyacrylate-coated polyacrylamide-based polymers for lipid apheresis by evaluating the adhesion of blood cells to the adsorbent polymers, their respective activation, as well as the release of microvesicles during circulation of whole blood over the polymers was studied. Characterization of the adsorbents by scanning electron microscopy, atomic force microscopy, and X-ray photoelectron spectroscopy revealed differences with respect to their surface morphology and their surface chemical composition. Despite these differences, equivalent amounts of leukocytes and platelets adhered to both polymers during circulation of whole blood over the adsorbent columns. The release of phosphatidylserine-exposing microvesicles, in contrast, increased significantly with increasing surface roughness and with the amount of polyacrylate groups at the adsorbent surface. The majority of microvesicles generated during blood-material contact were platelet-derived, and their release was associated with enhanced thrombin generation. Microvesicles were present in free and in cell-bound form, and 75% of all monocytes, but only 0.2% and 2.3% of red blood cells and platelets, respectively, were associated with microvesicles, pointing to a role of monocytes in the clearance of released microvesicles. Taken together, microvesicles are sensitive indicators for biomaterial-induced activation of blood cells in apheresis. © 2015 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 105B: 636-646, 2017.
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Affiliation(s)
- René Weiss
- Christian Doppler Laboratory for Innovative Therapy Approaches in Sepsis, Department for Health Sciences and Biomedicine, Danube University Krems, Krems, Austria
| | - Tanja Eichhorn
- Christian Doppler Laboratory for Innovative Therapy Approaches in Sepsis, Department for Health Sciences and Biomedicine, Danube University Krems, Krems, Austria
| | - Andreas Spittler
- Core Facility Flow Cytometry & Surgical Research Laboratories, Medical University of Vienna, Vienna, Austria
| | - Matej Mičušík
- Polymer Institute, Slovak Academy of Sciences, Bratislava, Slovakia
| | - Michael B Fischer
- Christian Doppler Laboratory for Innovative Therapy Approaches in Sepsis, Department for Health Sciences and Biomedicine, Danube University Krems, Krems, Austria.,Department of Blood Group Serology and Transfusion Medicine, Medical University of Vienna, Vienna, Austria
| | - Viktoria Weber
- Christian Doppler Laboratory for Innovative Therapy Approaches in Sepsis, Department for Health Sciences and Biomedicine, Danube University Krems, Krems, Austria
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162
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Inglis HC, Danesh A, Shah A, Lacroix J, Spinella PC, Norris PJ. Techniques to improve detection and analysis of extracellular vesicles using flow cytometry. Cytometry A 2015; 87:1052-63. [PMID: 25847910 PMCID: PMC4876854 DOI: 10.1002/cyto.a.22649] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2014] [Revised: 01/04/2015] [Accepted: 02/04/2015] [Indexed: 12/21/2022]
Abstract
Extracellular vesicles (EVs) range in size from 50 nm to 1 µm. Flow cytometry (FCM) is the most commonly used method for analyzing EVs; however, accurate characterization of EVs remains challenging due to their small size and lack of discrete positive populations. Here we report the use of optimization techniques that are especially well-suited for analyzing EVs from a high volume of clinical samples. Utilizing a two pronged approach that included 1) pre-filtration of antibodies to remove aggregates, followed by 2) detergent lysis of a replicate sample to account for remaining false positive events, we were able to effectively limit false positive non-EV events. In addition, we show that lysed samples are a useful alternative to isotypes for setting gates to exclude background fluorescence. To reduce background, we developed an approach using filters to "wash" samples post-staining thus providing a faster alternative to ultracentrifugation and sucrose gradient fractionation. In conclusion, use of these optimized techniques enhances the accuracy and efficiency of EV detection using FCM.
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Affiliation(s)
| | - Ali Danesh
- Blood Systems Research Institute, San Francisco, CA
- Department of Laboratory Medicine, University of California, San Francisco, CA
| | - Avani Shah
- Blood Systems Research Institute, San Francisco, CA
| | - Jacques Lacroix
- Department of Pediatrics, Division of Critical Care, University of Montreal, Quebec, Canada
| | - Philip C. Spinella
- Department of Pediatrics, Division of Critical Care, Washington University School of Medicine, St. Louis, MO
| | - Philip J. Norris
- Blood Systems Research Institute, San Francisco, CA
- Department of Laboratory Medicine, University of California, San Francisco, CA
- Department of Medicine, University of California, San Francisco, CA
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163
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Bicalho B, Serrano K, Dos Santos Pereira A, Devine DV, Acker JP. Blood Bag Plasticizers Influence Red Blood Cell Vesiculation Rate without Altering the Lipid Composition of the Vesicles. Transfus Med Hemother 2015; 43:19-26. [PMID: 27022319 DOI: 10.1159/000441639] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2015] [Accepted: 07/13/2015] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Polyvinyl chloride (PVC) plasticized with di(2-ethylhexyl) phthalate (DEHP) is commonly used for blood collection and storage. DEHP has protective effects on RBC membranes, but is also a toxin. METHODS A paired study was conducted to investigate the influence of DEHP and two alternative plasticizers, 1,2-cyclohexane-dicarboxylic acid diisononyl ester (DINCH) and n-butyryl-tri-n-hexyl citrate (BTHC), on the preservation of RBCs stored for 42 days in PVC pediatric bags. The RBC membrane was evaluated for supernatant hemoglobin (Hb), release of extracellular microvesicles (EVs), osmotic fragility, deformability, and lipid composition. RESULTS In BTHC-plasticized bags, the supernatant Hb increase during storage was 2 times greater than in DINCH- and DEHP-plasticized bags. By day 21, EV concentrations had doubled from day-5 levels in DINCH- and DEHP-, and trebled in BTHC-plasticized bags. RBC mean cell volumes were greater in BTHC- than in DINCH- or DEHP-plasticized bags (p < 0.001). Osmotic fragility differed significantly among plasticizers (p < 0.01). After day 21, RBC deformability decreased in all, but to a greater extent in the bags with BTHC. Phospholipid composition of RBCs and EVs was not different among plasticizers. CONCLUSION Membrane stabilization capacity differed among the plasticizers. RBC in BTHC bags stored more poorly, while DEHP and DINCH bags offered better protection against vesiculation, osmotic stress, and Hb loss.
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Affiliation(s)
- Beatriz Bicalho
- Canadian Blood Services, Center for Innovation, Edmonton, AB, Canada
| | - Katherine Serrano
- Canadian Blood Services, Center for Innovation, Vancouver, BC, Canada; Department of Pathology and Laboratory Medicine at the Center for Blood Research, University of British Columbia, Vancouver, BC, Canada
| | | | - Dana V Devine
- Canadian Blood Services, Center for Innovation, Vancouver, BC, Canada; Department of Pathology and Laboratory Medicine at the Center for Blood Research, University of British Columbia, Vancouver, BC, Canada
| | - Jason P Acker
- Canadian Blood Services, Center for Innovation, Edmonton, AB, Canada; Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB, Canada
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164
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Abstract
PURPOSE OF REVIEW Microvesicles, in general, and exosomes together with their delivered content in particular, are now being widely recognized as key players in atherosclerosis. We have previously reviewed the role of microvesicles in atherosclerosis pathogenesis, diagnosis and therapy. Here, we focus on the roles of exosomes and discuss their emergent role in mediating activation and response to inflammation, vessel infiltration and induction of coagulation. We will finally give an outlook to discuss novel detection techniques and systems biology based data analyses to investigate exosome-mediated cell-to-cell communication. RECENT FINDINGS Recent research points to a role of exosomes in delivering apoptotic and inflammatory content between blood cells and vascular cells, with a potential contribution of exosomes secreted by adipose tissue. An atheroprotective role of exosomes in response to coagulation that may contrast with the procoagulatory role of platelet-derived larger microvesicles is envisaged. New detection and separation methods and systems biology techniques are emerging. CONCLUSION We project that the development of novel detection, separation and analysis mechanism and systems-based analysis methods will further unravel the paracrine and endocrine 'communication protocol' between cellular players in atherosclerosis, mediating inflammation, oxidative stress and apoptosis.
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Affiliation(s)
- Heinrich J. Huber
- Department of Cardiovascular Sciences, Atherosclerosis and Metabolism Unit
- Cardiovascular Systems Biology, KU Leuven, Leuven, Belgium
| | - Paul Holvoet
- Department of Cardiovascular Sciences, Atherosclerosis and Metabolism Unit
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165
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Garapaty A, Champion JA. Biomimetic and synthetic interfaces to tune immune responses. Biointerphases 2015; 10:030801. [PMID: 26178262 PMCID: PMC4506308 DOI: 10.1116/1.4922798] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2015] [Revised: 06/06/2015] [Accepted: 06/10/2015] [Indexed: 01/05/2023] Open
Abstract
Organisms depend upon complex intercellular communication to initiate, maintain, or suppress immune responses during infection or disease. Communication occurs not only between different types of immune cells, but also between immune cells and nonimmune cells or pathogenic entities. It can occur directly at the cell-cell contact interface, or indirectly through secreted signals that bind cell surface molecules. Though secreted signals can be soluble, they can also be particulate in nature and direct communication at the cell-particle interface. Secreted extracellular vesicles are an example of native particulate communication, while viruses are examples of foreign particulates. Inspired by communication at natural immunological interfaces, biomimetic materials and designer molecules have been developed to mimic and direct the type of immune response. This review describes the ways in which native, biomimetic, and designer materials can mediate immune responses. Examples include extracellular vesicles, particles that mimic immune cells or pathogens, and hybrid designer molecules with multiple signaling functions, engineered to target and bind immune cell surface molecules. Interactions between these materials and immune cells are leading to increased understanding of natural immune communication and function, as well as development of immune therapeutics for the treatment of infection, cancer, and autoimmune disease.
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Affiliation(s)
- Anusha Garapaty
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Dr. NW, Atlanta, Georgia 30332
| | - Julie A Champion
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Dr. NW, Atlanta, Georgia 30332
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166
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Olumuyiwa-Akeredolu OOO, Pretorius E. Platelet and red blood cell interactions and their role in rheumatoid arthritis. Rheumatol Int 2015; 35:1955-64. [PMID: 26059943 DOI: 10.1007/s00296-015-3300-7] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2015] [Accepted: 05/26/2015] [Indexed: 12/23/2022]
Abstract
Cytokines, lymphocytes, platelets and several biomolecules have long been implicated in the pathology of rheumatoid arthritis (RA), and the influences of antibody production and tagging, and cytokine, chemokine and enzyme production at specific rheumatoid joints were thought to be exclusive to the advancement of disease parameters. Another role player in RA is red blood cells (RBCs) which, of late, have been found to be involved in RA pathobiology, as there is a positive correlation between RBC counts and joint pathology, as well as with inflammatory biomarkers in the disease. There is also an association between RBC distribution width and the incidence of myocardial infarction amongst RA patients, and there is a change in the lipid distribution within RBC membranes. Of late, certain RBC-associated factors with previously obscure roles and cell-derived particles thought to be inconsequential to the other constituents of plasma were found to be active biomolecular players. Several of these have been discovered to be present in or originating from RBCs. Their influences have been shown to involve in membrane dynamics that cause structural and functional changes in both platelets and RBCs. RBC-derived microparticles are emerging entities found to play direct roles in immunomodulation via interactions with other plasma cells. These correlations highlight the direct influences of RBCs on exacerbating RA pathology. This review will attempt to shed more light on how RBCs, in the true inflammatory milieu of RA, are playing an even greater role than previously assumed.
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Affiliation(s)
- Oore-Ofe O Olumuyiwa-Akeredolu
- Department of Physiology, Faculty of Health Sciences, University of Pretoria, Private Bag x323, Arcadia, 0007, South Africa
| | - Etheresia Pretorius
- Department of Physiology, Faculty of Health Sciences, University of Pretoria, Private Bag x323, Arcadia, 0007, South Africa.
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167
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Mittag D, Sran A, Chan KS, Boland MP, Bandala-Sanchez E, Huet O, Xu W, Sparrow RL. Stored red blood cell susceptibility to in vitro transfusion-associated stress conditions is higher after longer storage and increased by storage in saline-adenine-glucose-mannitol compared to AS-1. Transfusion 2015; 55:2197-206. [PMID: 25968419 DOI: 10.1111/trf.13138] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2015] [Revised: 02/23/2015] [Accepted: 02/28/2015] [Indexed: 12/25/2022]
Abstract
BACKGROUND Biochemical changes induced in red blood cells (RBCs) during storage may impair their function upon transfusion. Transfusion-associated stresses may further amplify storage lesion effects including increased phosphatidylserine (PS) exposure at the RBC membrane, microparticle (MP) release, and adhesion to endothelial cells (ECs). RBC stress susceptibility in vitro was investigated in relation to storage time and additive solution. STUDY DESIGN AND METHODS Leukoreduced whole blood donations (n = 18) were paired, mixed, and resplit before separating the RBCs for storage in saline-adenine-glucose-mannitol (SAGM) or AS-1. Samples were taken after 3, 21, or 35 days. For oxidative stress treatment, RBCs were exposed to 0.5 mmol/L tert-butylhydroperoxide. Transfusion-associated stress was simulated by overnight culture at 37 °C with plasma containing inflammatory mediators. PS exposure and MPs were measured by flow cytometry and adhesion to ECs was tested under flow conditions. PS specificity of adhesion was tested by blocking with PS-containing lipid vesicles. RESULTS Oxidative stress induced significantly higher PS exposure and adhesion to ECs in RBCs stored for 35 days compared to 3 days (p < 0.04). PS-containing vesicles blocked RBC-EC adhesion. After overnight culture with or without plasma, PS exposure and EC adhesion were significantly increased (p < 0.05). MP numbers increased with longer RBC storage and after RBC culture with plasma. Culture conditions influenced MP numbers from Day 35 RBCs. RBCs stored in SAGM had significantly higher PS exposure after stress treatment than AS-1 RBCs (p < 0.02). CONCLUSION Storage for 35 days significantly increased RBC susceptibility to oxidative and in vitro transfusion-associated stresses and was higher for RBCs stored in SAGM compared to AS-1.
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Affiliation(s)
- Diana Mittag
- formerly Research and Development, Australian Red Cross Blood Service, West Melbourne, Victoria, Australia
| | - Amrita Sran
- formerly Research and Development, Australian Red Cross Blood Service, West Melbourne, Victoria, Australia
| | - Kasey S Chan
- formerly Research and Development, Australian Red Cross Blood Service, West Melbourne, Victoria, Australia
| | - Martin P Boland
- School of Psychological and Clinical Sciences, Charles Darwin University, Darwin, Northern Territory, Australia
| | - Esther Bandala-Sanchez
- Department of Medical Biology, Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia
| | - Olivier Huet
- Baker IDI Heart and Diabetes Institute, Melbourne, Victoria
| | - William Xu
- formerly Research and Development, Australian Red Cross Blood Service, West Melbourne, Victoria, Australia
| | - Rosemary L Sparrow
- formerly Research and Development, Australian Red Cross Blood Service, West Melbourne, Victoria, Australia.,Department of Immunology, Monash University, Melbourne, Victoria, Australia
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168
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Szatanek R, Baran J, Siedlar M, Baj-Krzyworzeka M. Isolation of extracellular vesicles: Determining the correct approach (Review). Int J Mol Med 2015; 36:11-7. [PMID: 25902369 PMCID: PMC4494580 DOI: 10.3892/ijmm.2015.2194] [Citation(s) in RCA: 193] [Impact Index Per Article: 21.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2015] [Accepted: 04/22/2015] [Indexed: 12/16/2022] Open
Abstract
The discovery of extracellular vesicles (EVs) has revised the interpretation of intercellular communication. It is now well established that EVs play a significant role in coagulation, inflammation, cancer and stem cell renewal and expansion. Their release presents an intriguing, transporting/trafficking network of biologically active molecules, which are able to reach and modulate the function/behavior of the target cells in a variety of ways. Moreover, the presence of EVs in various body fluids points to their potential for use as biomarkers and prognostic indicators in the surveillance/monitoring of a variety of diseases. Although vast knowledge on the subject of EVs has accumulated over the years, there are still fundamental issues associated with the correct approach for their isolation. This review comprises the knowledge on EV isolation techniques that are currently available. The aim of this reveiw was to make both experienced researchers and newcomers to the field aware that different types of EVs require unique isolation approaches. The realization of this 'uniqueness' is the first step in the right direction for the complete assessment of EVs.
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Affiliation(s)
- Rafal Szatanek
- Department of Clinical Immunology and Transplantology, Jagiellonian University Medical College, 30-663 Krakow, Poland
| | - Jarek Baran
- Department of Clinical Immunology and Transplantology, Jagiellonian University Medical College, 30-663 Krakow, Poland
| | - Maciej Siedlar
- Department of Clinical Immunology and Transplantology, Jagiellonian University Medical College, 30-663 Krakow, Poland
| | - Monika Baj-Krzyworzeka
- Department of Clinical Immunology and Transplantology, Jagiellonian University Medical College, 30-663 Krakow, Poland
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169
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Bicalho B, Pereira AS, Acker JP. Buffy coat (top/bottom)- and whole-blood filtration (top/top)-produced red cell concentrates differ in size of extracellular vesicles. Vox Sang 2015; 109:214-20. [PMID: 25900231 DOI: 10.1111/vox.12272] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2014] [Revised: 02/04/2015] [Accepted: 02/09/2015] [Indexed: 12/21/2022]
Abstract
BACKGROUND AND OBJECTIVES The influence that blood component separation methods have on changes to the red blood cell membrane during storage is not well understood. In Canada, red cell concentrates (RCCs) are produced using the buffy coat (BC, top/bottom) and the whole-blood filtration (WBF, top/top) methods, and this study aimed at comparing their influence on the characteristics of the extracellular vesicles (EV) which accumulated in the respective products during storage. MATERIALS AND METHODS Using flow cytometry, dynamic light scattering and mass spectrometry, we assessed RCC EVs for concentration, size, lipid composition and correlation with supernatant haemoglobin (Hb). RESULTS Accumulation of RBC EVs (CD235a(+) ) with storage time was similar in WBF and BC RCCs. The size of the EVs changed from <100 nm at d5 to near 200 nm by d42, with the EVs from WBF being smaller (P < 0·001) than BC RCCs at all storage times. The amount of EV-bound Hb in the WBF and BC units was similar (about 10% of total supernatant Hb). WBF EVs and BC EVs displayed similar lipid composition. CONCLUSION Haemolysis and EVs increase in BC and WBF RCCs during storage. Differences in the size characteristics of the EVs in WBF and BC RCCs suggest that non-RBC EVs are more prevalent in WBF products. Understanding the impact that manufacturing has on the characteristics of the different populations of EVs in RCCs will aid quality improvement efforts.
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Affiliation(s)
- B Bicalho
- Centre for Innovation, Canadian Blood Services, Edmonton, AB, Canada
| | - A S Pereira
- Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB, Canada
| | - J P Acker
- Centre for Innovation, Canadian Blood Services, Edmonton, AB, Canada.,Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB, Canada
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170
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Identification of signalling cascades involved in red blood cell shrinkage and vesiculation. Biosci Rep 2015; 35:BSR20150019. [PMID: 25757360 PMCID: PMC4400636 DOI: 10.1042/bsr20150019] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Even though red blood cell (RBC) vesiculation is a well-documented phenomenon, notably in the context of RBC aging and blood transfusion, the exact signalling pathways and kinases involved in this process remain largely unknown. We have established a screening method for RBC vesicle shedding using the Ca2+ ionophore ionomycin which is a rapid and efficient method to promote vesiculation. In order to identify novel pathways stimulating vesiculation in RBC, we screened two libraries: the Library of Pharmacologically Active Compounds (LOPAC) and the Selleckchem Kinase Inhibitor Library for their effects on RBC from healthy donors. We investigated compounds triggering vesiculation and compounds inhibiting vesiculation induced by ionomycin. We identified 12 LOPAC compounds, nine kinase inhibitors and one kinase activator which induced RBC shrinkage and vesiculation. Thus, we discovered several novel pathways involved in vesiculation including G protein-coupled receptor (GPCR) signalling, the phosphoinositide 3-kinase (PI3K)–Akt (protein kinase B) pathway, the Jak–STAT (Janus kinase–signal transducer and activator of transcription) pathway and the Raf–MEK (mitogen-activated protein kinase kinase)–ERK (extracellular signal-regulated kinase) pathway. Moreover, we demonstrated a link between casein kinase 2 (CK2) and RBC shrinkage via regulation of the Gardos channel activity. In addition, our data showed that inhibition of several kinases with unknown functions in mature RBC, including Alk (anaplastic lymphoma kinase) kinase and vascular endothelial growth factor receptor 2 (VEGFR-2), induced RBC shrinkage and vesiculation. After screening two libraries of small bioactive molecules and kinase inhibitors, we identified several signalling pathways to be involved in red blood cell (RBC) shrinkage and vesiculation. These include the Jak (Janus kinase)–STAT (signal transducer and activator of transcription) pathway, phosphoinositide 3-kinase (PI3K)–Akt pathway, the Raf–MEK (mitogen-activated protein kinase kinase)–ERK (extracellular signal-regulated kinase) pathway and GPCR (G protein-coupled receptor) signalling.
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171
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Muszynski JA, Bale J, Nateri J, Nicol K, Wang Y, Wright V, Marsh CB, Gavrilin MA, Sarkar A, Wewers MD, Hall MW. Supernatants from stored red blood cell (RBC) units, but not RBC-derived microvesicles, suppress monocyte function in vitro. Transfusion 2015; 55:1937-45. [PMID: 25819532 DOI: 10.1111/trf.13084] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2014] [Revised: 02/12/2015] [Accepted: 02/13/2015] [Indexed: 02/06/2023]
Abstract
BACKGROUND We have previously shown that critically ill children transfused with red blood cells (RBCs) of longer storage durations have more suppressed monocyte function after transfusion compared to children transfused with fresher RBCs and that older stored RBCs directly suppress monocyte function in vitro, through unknown mechanisms. We hypothesized that RBC-derived microvesicles (MVs) were responsible for monocyte suppression. STUDY DESIGN AND METHODS To determine the role of stored RBC unit-derived MVs, we cocultured monocytes with supernatants, isolated MVs, or supernatants that had been depleted of MVs from prestorage leukoreduced RBCs that had been stored for either 7 or 30 days. Isolated MVs were characterized by electron microscopy and flow cytometry. Monocyte function after coculture experiments was measured by cytokine production after stimulation with lipopolysaccharide (LPS). RESULTS Monocyte function was suppressed after exposure to supernatants from 30-day RBC units compared to monocytes cultured in medium alone (LPS-induced tumor necrosis factor-α production, 17,611 ± 3,426 vs. 37,486 ± 5,598 pg/mL; p = 0.02). Monocyte function was not suppressed after exposure to MV fractions. RBC supernatants that had been depleted of MVs remained immunosuppressive. Treating RBC supernatants with heat followed by RNase (to degrade protein-bound RNA) prevented RBC supernatant-induced monocyte suppression. CONCLUSION Our findings implicate soluble mediators of stored RBC-induced monocyte suppression outside of MV fractions and suggest that extracellular protein-bound RNAs (such as microRNA) may play a role in transfusion-related immunomodulation.
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Affiliation(s)
- Jennifer A Muszynski
- Division of Critical Care Medicine.,The Research Institute.,Division of Pulmonary and Critical Care, Department of Internal Medicine, The Ohio State University, Columbus, Ohio
| | | | | | | | - Yijie Wang
- Division of Pulmonary and Critical Care, Department of Internal Medicine, The Ohio State University, Columbus, Ohio
| | - Valerie Wright
- Division of Pulmonary and Critical Care, Department of Internal Medicine, The Ohio State University, Columbus, Ohio
| | - Clay B Marsh
- Division of Pulmonary and Critical Care, Department of Internal Medicine, The Ohio State University, Columbus, Ohio
| | - Mikhail A Gavrilin
- Division of Pulmonary and Critical Care, Department of Internal Medicine, The Ohio State University, Columbus, Ohio
| | - Anasuya Sarkar
- Division of Pulmonary and Critical Care, Department of Internal Medicine, The Ohio State University, Columbus, Ohio
| | - Mark D Wewers
- Division of Pulmonary and Critical Care, Department of Internal Medicine, The Ohio State University, Columbus, Ohio
| | - Mark W Hall
- Division of Critical Care Medicine.,The Research Institute.,Division of Pulmonary and Critical Care, Department of Internal Medicine, The Ohio State University, Columbus, Ohio
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172
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173
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Minciacchi VR, Freeman MR, Di Vizio D. Extracellular vesicles in cancer: exosomes, microvesicles and the emerging role of large oncosomes. Semin Cell Dev Biol 2015; 40:41-51. [PMID: 25721812 DOI: 10.1016/j.semcdb.2015.02.010] [Citation(s) in RCA: 654] [Impact Index Per Article: 72.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2014] [Revised: 02/18/2015] [Accepted: 02/18/2015] [Indexed: 02/08/2023]
Abstract
Since their first description, extracellular vesicles (EVs) have been the topic of avid study in a variety of physiologic contexts and are now thought to play an important role in cancer. The state of knowledge on biogenesis, molecular content and horizontal communication of diverse types of cancer EVs has expanded considerably in recent years. As a consequence, a plethora of information about EV composition and molecular function has emerged, along with the notion that cancer cells rely on these particles to invade tissues and propagate oncogenic signals at distance. The number of in vivo studies, designed to achieve a deeper understanding of the extent to which EV biology can be applied to clinically relevant settings, is rapidly growing. This review summarizes recent studies on cancer-derived EV functions, with an overview about biogenesis and molecular cargo of exosomes, microvesicles and large oncosomes. We also discuss current challenges and emerging technologies that might improve EV detection in various biological systems. Further studies on the functional role of EVs in specific steps of cancer formation and progression will expand our understanding of the diversity of paracrine signaling mechanisms in malignant growth.
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Affiliation(s)
- Valentina R Minciacchi
- Division of Cancer Biology and Therapeutics, Departments of Surgery, Biomedical Sciences and Pathology and Laboratory Medicine, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA, United States
| | - Michael R Freeman
- Division of Cancer Biology and Therapeutics, Departments of Surgery, Biomedical Sciences and Pathology and Laboratory Medicine, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA, United States; The Urological Diseases Research Center; Boston Children's Hospital, Boston, MA, United States; Department of Surgery, Harvard Medical School, Boston, MA, United States
| | - Dolores Di Vizio
- Division of Cancer Biology and Therapeutics, Departments of Surgery, Biomedical Sciences and Pathology and Laboratory Medicine, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA, United States; The Urological Diseases Research Center; Boston Children's Hospital, Boston, MA, United States; Department of Surgery, Harvard Medical School, Boston, MA, United States.
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174
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Crosstalk between red blood cells and the immune system and its impact on atherosclerosis. BIOMED RESEARCH INTERNATIONAL 2015; 2015:616834. [PMID: 25722984 PMCID: PMC4334626 DOI: 10.1155/2015/616834] [Citation(s) in RCA: 72] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/26/2014] [Accepted: 01/16/2015] [Indexed: 12/21/2022]
Abstract
Atherosclerosis is a chronic multifactorial disease of the arterial wall characterized by inflammation, oxidative stress, and immune system activation. Evidence exists on a pathogenic role of oxidized red blood cells (RBCs) accumulated in the lesion after intraplaque hemorrhage. This review reports current knowledge on the impact of oxidative stress in RBC modifications with the surface appearance of senescent signals characterized by reduced expression of CD47 and glycophorin A and higher externalization of phosphatidylserine. The review summarizes findings indicating that oxidized, senescent, or stored RBCs, due to surface antigen modification and release of prooxidant and proinflammatory molecules, exert an impaired modulatory activity on innate and adaptive immune cells and how this activity contributes to atherosclerotic disease. In particular RBCs from patients with atherosclerosis, unlike those from healthy subjects, fail to control lipopolysaccharide-induced DC maturation and T lymphocyte apoptosis. Stored RBCs, accompanied by shedding of extracellular vesicles, stimulate peripheral blood mononuclear cells to release proinflammatory cytokines, augment mitogen-driven T cell proliferation, and polarize macrophages toward the proinflammatory M1 activation pathway. Collectively, literature data suggest that the crosstalk between RBCs with immune cells represents a novel mechanism by which oxidative stress can contribute to atherosclerotic disease progression and may be exploited for therapeutic interventions.
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175
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Red blood cell storage duration and trauma. Transfus Med Rev 2014; 29:120-6. [PMID: 25573415 DOI: 10.1016/j.tmrv.2014.09.007] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2014] [Revised: 09/01/2014] [Accepted: 09/25/2014] [Indexed: 12/28/2022]
Abstract
Numerous retrospective clinical studies suggest that transfusion of longer stored red blood cells (RBCs) is associated with an independent risk of poorer outcomes for certain groups of patients, including trauma, intensive care, and cardiac surgery patients. Large multicenter randomized controlled trials are currently underway to address the concern about RBC storage duration. However, none of these randomized controlled trials focus specifically on trauma patients with hemorrhage. Major trauma, particularly due to road accidents, is the leading cause of critical injury in the younger-than-40-year-old age group. Severe bleeding associated with major trauma induces hemodynamic dysregulation that increases the risk of hypoxia, coagulopathy, and potentially multiorgan failure, which can be fatal. In major trauma, a multitude of stress-associated changes occur to the patient's RBCs, including morphological changes that increase cell rigidity and thereby alter blood flow hemodynamics, particularly in the microvascular vessels, and reduce RBC survival. Initial inflammatory responses induce deleterious cellular interactions, including endothelial activation, RBC adhesion, and erythrophagocytosis that are quickly followed by profound immunosuppressive responses. Stored RBCs exhibit similar biophysical characteristics to those of trauma-stressed RBCs. Whether transfusion of RBCs that exhibit storage lesion changes exacerbates the hemodynamic perturbations already active in the trauma patient is not known. This article reviews findings from several recent nonrandomized studies examining RBC storage duration and clinical outcomes in trauma patients. The rationale for further research on RBC storage duration in the trauma setting is provided.
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176
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Jiang H, Gebhardt C, Umansky L, Beckhove P, Schulze TJ, Utikal J, Umansky V. Elevated chronic inflammatory factors and myeloid-derived suppressor cells indicate poor prognosis in advanced melanoma patients. Int J Cancer 2014; 136:2352-60. [PMID: 25353097 DOI: 10.1002/ijc.29297] [Citation(s) in RCA: 136] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2014] [Accepted: 10/21/2014] [Indexed: 12/17/2022]
Abstract
Chronic inflammation is considered to be one of the hallmarks for tumor initiation and progression. Moreover, a long-term production and accumulation of inflammatory factors lead to a local and systemic immunosuppression associated with cancer progression. However, the correlation between inflammatory mediators, immunosuppressive cells and the clinical outcome of malignant melanoma patients was poorly investigated. In this study, we performed a complex analysis of various inflammatory factors, myeloid-derived suppressor cells (MDSCs) and regulatory T cells (Tregs) in the peripheral blood of patients suffering from malignant melanoma of different stages. We demonstrated that levels of serum IL-1β, IFN-γ and CXCL10 were significantly increased in advanced melanoma patients. In addition, these factors were found to be associated with an increased frequency of MDSCs and Tregs as compared to age- and gender-matched healthy donors. Importantly, advanced melanoma patients with signs of progression displayed markedly elevated concentrations of IL-1β and CXCL10 as compared to patients with stable disease. Moreover, an enrichment of circulating monocytic (Mo)-MDSCs significantly correlated with a decreased progression free survival of these patients. Our data highlight a complex association between circulating inflammatory mediators, Mo-MDSCs and the clinical outcome as well as suggest that their levels in patients with advanced melanoma are of important prognostic value allowing the identification of those with high risk of disease progression.
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Affiliation(s)
- Huanhuan Jiang
- Skin Cancer Unit, German Cancer Research Center (DKFZ), Heidelberg, Germany; Department of Dermatology, Venereology and Allergology, University Medical Center Mannheim, Ruprecht-Karl University of Heidelberg, Mannheim, Germany; Department of Obstetrics and Gynecology, Center for Reproductive Medicine, The First Hospital Affiliated to Anhui Medical University, Hefei, China
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177
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Umansky V, Sevko A, Gebhardt C, Utikal J. Myeloide Suppressorzellen (MDSC) beim malignen Melanom. J Dtsch Dermatol Ges 2014. [DOI: 10.1111/ddg.12411_suppl] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Viktor Umansky
- Klinische Kooperationseinheit für Dermato-Onkologie; Deutsches Krebsforschungszentrum (DKFZ); Heidelberg und Klinik für Dermatologie; Venerologie und Allergologie; Universitätsmedizin Mannheim und Medizinische Fakultät Mannheim der Ruprecht-Karl Universität Heidelberg; Mannheim
| | - Alexandra Sevko
- Klinische Kooperationseinheit für Dermato-Onkologie; Deutsches Krebsforschungszentrum (DKFZ); Heidelberg und Klinik für Dermatologie; Venerologie und Allergologie; Universitätsmedizin Mannheim und Medizinische Fakultät Mannheim der Ruprecht-Karl Universität Heidelberg; Mannheim
| | - Christoffer Gebhardt
- Klinische Kooperationseinheit für Dermato-Onkologie; Deutsches Krebsforschungszentrum (DKFZ); Heidelberg und Klinik für Dermatologie; Venerologie und Allergologie; Universitätsmedizin Mannheim und Medizinische Fakultät Mannheim der Ruprecht-Karl Universität Heidelberg; Mannheim
| | - Jochen Utikal
- Klinische Kooperationseinheit für Dermato-Onkologie; Deutsches Krebsforschungszentrum (DKFZ); Heidelberg und Klinik für Dermatologie; Venerologie und Allergologie; Universitätsmedizin Mannheim und Medizinische Fakultät Mannheim der Ruprecht-Karl Universität Heidelberg; Mannheim
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178
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Ryder AB, Zimring JC, Hendrickson JE. Factors Influencing RBC Alloimmunization: Lessons Learned from Murine Models. Transfus Med Hemother 2014; 41:406-19. [PMID: 25670928 PMCID: PMC4280453 DOI: 10.1159/000368995] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2014] [Accepted: 10/01/2014] [Indexed: 01/25/2023] Open
Abstract
Red blood cell (RBC) alloimmunization may occur following transfusion or pregnancy/delivery. Although observational human studies have described the immunogenicity of RBC antigens and the clinical significance of RBC alloantibodies, studies of factors influencing RBC alloimmunization in humans are inherently limited by the large number of independent variables involved. This manuscript reviews data generated in murine models that utilize transgenic donor mice, which express RBC-specific model or authentic human blood group antigens. Transfusion of RBCs from such donors into nontransgenic but otherwise genetically identical recipient mice allows for the investigation of individual donor or recipient-specific variables that may impact RBC alloimmunization. Potential donor-related variables include methods of blood product collection, processing and storage, donor-specific characteristics, RBC antigen-specific factors, and others. Potential recipient-related variables include genetic factors (MHC/HLA type and polymorphisms of immunoregulatory genes), immune activation status, phenotype of regulatory immune cell subsets, immune cell functional characteristics, prior antigen exposures, and others. Although murine models are not perfect surrogates for human biology, these models generate phenomenological and mechanistic hypotheses of RBC alloimmunization and lay the groundwork for follow-up human studies. Long-term goals include improving transfusion safety and minimizing the morbidity/mortality associated with RBC alloimmunization.
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Affiliation(s)
- Alex B. Ryder
- Yale University School of Medicine, Department of Laboratory Medicine, New Haven, CT, USA
| | - James C. Zimring
- Puget Sound Blood Center Research Institute, Seattle, WA, USA
- University of Washington, Department of Laboratory Medicine, Seattle, WA, USA
| | - Jeanne E. Hendrickson
- Yale University School of Medicine, Department of Laboratory Medicine, New Haven, CT, USA
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179
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Muszynski JA, Frazier E, Nofziger R, Nateri J, Hanson-Huber L, Steele L, Nicol K, Spinella PC, Hall MW. Red blood cell transfusion and immune function in critically ill children: a prospective observational study. Transfusion 2014; 55:766-74. [PMID: 25355535 DOI: 10.1111/trf.12896] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2014] [Revised: 08/25/2014] [Accepted: 08/29/2014] [Indexed: 02/01/2023]
Abstract
BACKGROUND Our previous in vitro work showed that stored red blood cells (RBCs) increasingly suppress markers of innate immune function with increased storage time. This multicenter prospective observational study tests the hypothesis that a single RBC transfusion in critically ill children is associated with immune suppression as a function of storage time. STUDY DESIGN AND METHODS Blood samples were taken immediately before and 24 (±6) hours after a single RBC transfusion ordered as part of routine care. Innate and adaptive immune function was assessed by ex vivo whole blood stimulation with lipopolysaccharide (LPS) and phytohemagglutinin, respectively. Monocyte HLA-DR expression, regulatory T cells, plasma interleukin (IL)-6, and IL-8 levels were also measured. RESULTS Thirty-one transfused critically ill children and eight healthy controls were studied. Critically ill subjects had lower pretransfusion LPS-induced tumor necrosis factor-α production capacity compared to healthy controls, indicating innate immune suppression (p < 0.0002). Those who received RBCs stored for not more than 21 days demonstrated recovery of innate immune function (p = 0.02) and decreased plasma IL-6 levels (p = 0.002) over time compared to children transfused with older blood, who showed persistence of systemic inflammation and innate immune suppression. RBC storage time was not associated with changes in adaptive immune function. CONCLUSION In this pilot cohort of critically ill children, transfusion with older prestorage leukoreduced RBCs was associated with persistence of innate immune suppression and systemic inflammation. This was not seen with fresher RBCs. RBC transfusion had no short-term association with adaptive immune function. Further studies are warranted to confirm these findings in a larger cohort of patients.
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Affiliation(s)
- Jennifer A Muszynski
- Pediatric Critical Care Medicine, Department of Pediatrics, Nationwide Children's Hospital, Columbus, Ohio.,The Research Institute at Nationwide Children's Hospital, Columbus, Ohio
| | - Elfaridah Frazier
- Pediatrics, Division of Critical Care Medicine, Washington University, St Louis, Missouri
| | - Ryan Nofziger
- Critical Care Medicine, Department of Pediatrics, Akron Children's Hospital, Akron, Ohio
| | - Jyotsna Nateri
- The Research Institute at Nationwide Children's Hospital, Columbus, Ohio
| | - Lisa Hanson-Huber
- The Research Institute at Nationwide Children's Hospital, Columbus, Ohio
| | - Lisa Steele
- The Research Institute at Nationwide Children's Hospital, Columbus, Ohio
| | - Kathleen Nicol
- Pathology, Nationwide Children's Hospital, Columbus, Ohio
| | - Philip C Spinella
- Pediatrics, Division of Critical Care Medicine, Washington University, St Louis, Missouri
| | - Mark W Hall
- Pediatric Critical Care Medicine, Department of Pediatrics, Nationwide Children's Hospital, Columbus, Ohio.,The Research Institute at Nationwide Children's Hospital, Columbus, Ohio
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180
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Spitalnik SL. Stored red blood cell transfusions: iron, inflammation, immunity, and infection. Transfusion 2014; 54:2365-71. [PMID: 25196845 PMCID: PMC4194176 DOI: 10.1111/trf.12848] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2014] [Accepted: 08/02/2014] [Indexed: 12/13/2022]
Abstract
Emily Cooley was a highly regarded medical technologist and morphologist. The "Emily Cooley Lectureship and Award" was established to honor her, in particular, and medical technologists, in general. This article reviews some basic concepts about the "life of a red blood cell" (RBC) and uses these to discuss the actual and potential consequences that occur in patients after clearance of transfused refrigerator storage-damaged RBCs by extravascular hemolysis.
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Affiliation(s)
- Steven L Spitalnik
- Department of Pathology and Cell Biology, Columbia University College of Physicians and Surgeons-New York Presbyterian Hospital, New York, New York
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181
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Umansky V, Sevko A, Gebhardt C, Utikal J. Myeloid-derived suppressor cells in malignant melanoma. J Dtsch Dermatol Ges 2014; 12:1021-7. [PMID: 25263083 DOI: 10.1111/ddg.12411] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2014] [Accepted: 05/30/2014] [Indexed: 01/04/2023]
Abstract
Melanoma is known for its rapid progression, metastasis to distant organs and therapeutic resistance. Despite high melanoma immunogenicity, the results of immunotherapeutic clinical studies are mostly unsatisfactory. One explanation is the development of strong immunosuppression mediated by highly immunosuppressive regulatory leukocytes, in particular, myeloid-derived suppressor cells (MDSCs). These cells were found to be enriched and activated in the melanoma microenvironment, inducing a profound impairment of anti-tumor immune responses and leading to the tumor progression. Therefore, understanding the mechanisms of MDSC generation, migration to the tumor site and activation as well as their targeting is important for the development of novel strategies for effective melanoma immunotherapy. We suggest that such therapeutic approaches should involve the inhibition of MDSC-mediated immunosuppressive melanoma microenvironment combined with other immunologic treatments.
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Affiliation(s)
- Viktor Umansky
- Skin Cancer Unit, German Cancer Research Center (DKFZ), Heidelberg and Department of Dermatology, Venereology and Allergology, University Medical Center Mannheim, Ruprecht-Karl University of Heidelberg, Mannheim, Germany
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182
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Musante L, Tataruch DE, Holthofer H. Use and isolation of urinary exosomes as biomarkers for diabetic nephropathy. Front Endocrinol (Lausanne) 2014; 5:149. [PMID: 25309511 PMCID: PMC4176463 DOI: 10.3389/fendo.2014.00149] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/15/2014] [Accepted: 09/05/2014] [Indexed: 01/08/2023] Open
Abstract
Diabetes represents a major threat to public health and the number of patients is increasing alarmingly in the global scale. Particularly, the diabetic kidney disease (nephropathy, DN) together with its cardiovascular complications cause immense human suffering, highly increased risk of premature deaths, and lead to huge societal costs. DN is first detected when protein appears in urine (microalbuminuria). As in other persisting proteinuric diseases (like vasculitis) it heralds irreversible damage of kidney functions up to non-functional (end-stage) kidney and ultimately calls for kidney replacement therapy (dialysis or kidney transplantation). While remarkable progress has been made in understanding the genetic and molecular factors associating with chronic kidney diseases, breakthroughs are still missing to provide comprehensive understanding of events and mechanisms associated. Non-invasive diagnostic tools for early diagnostics of kidney damage are badly needed. Exosomes - small vesicular structures present in urine are released by all cell types along kidney structures to present with distinct surface assembly. Furthermore, exosomes carry a load of special proteins and nucleic acids. This "cargo" faithfully reflects the physiological state of their respective cells of origin and appears to serve as a new pathway for downstream signaling to target cells. Accordingly, exosome vesicles are emerging as a valuable source for disease stage-specific information and as fingerprints of disease progression. Unfortunately, technical issues of exosome isolation are challenging and, thus, their full potential remains untapped. Here, we review the molecular basis of exosome secretion as well as their use to reveal events along the nephron. In addition to novel molecular information, the new methods provide the needed accurate, personalized, non-invasive, and inexpensive future diagnostics.
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Affiliation(s)
- Luca Musante
- Centre for BioAnalytical Sciences (CBAS), Dublin City University, Dublin, Ireland
| | - Dorota Ewa Tataruch
- Centre for BioAnalytical Sciences (CBAS), Dublin City University, Dublin, Ireland
| | - Harry Holthofer
- Centre for BioAnalytical Sciences (CBAS), Dublin City University, Dublin, Ireland
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183
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Altevogt P, Bretz NP, Ridinger J, Utikal J, Umansky V. Novel insights into exosome-induced, tumor-associated inflammation and immunomodulation. Semin Cancer Biol 2014; 28:51-7. [PMID: 24769223 DOI: 10.1016/j.semcancer.2014.04.008] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2014] [Accepted: 04/09/2014] [Indexed: 12/13/2022]
Abstract
The immune system of cancer patients is often suppressed. Accumulating evidence suggests that exosomes released from tumor cells may play an essential role in this process but the mechanisms are not fully understood. Here we review recent papers showing that exosomes trigger the release of cytokines/chemokines from immune cells. We suggest that this process will either result in the stimulation of anti-tumor immune reactions or in a systemic immunosuppression. The direction appears to be largely dependent on the duration of interactions between immune cells and exosomes leading to the accumulation of inflammatory factors, i.e. on the length of the exposure to these factors. We propose that a long-term interaction of the immune system with elevated levels of tumor exosomes contributes to the development of immunosuppression in cancer patients.
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Affiliation(s)
- Peter Altevogt
- Translational Immunology, D015, German Cancer Research Center, DKFZ, 69120 Heidelberg, Germany.
| | - Niko P Bretz
- Translational Immunology, D015, German Cancer Research Center, DKFZ, 69120 Heidelberg, Germany
| | - Johannes Ridinger
- Translational Immunology, D015, German Cancer Research Center, DKFZ, 69120 Heidelberg, Germany; Skin Cancer Unit, German Cancer Research Center DKFZ, Heidelberg, Germany; Department of Dermatology, Venereology and Allergology, University Medical Center Mannheim, Ruprecht-Karl University of Heidelberg, 69120 Heidelberg, Germany
| | - Jochen Utikal
- Skin Cancer Unit, German Cancer Research Center DKFZ, Heidelberg, Germany; Department of Dermatology, Venereology and Allergology, University Medical Center Mannheim, Ruprecht-Karl University of Heidelberg, 69120 Heidelberg, Germany
| | - Viktor Umansky
- Skin Cancer Unit, German Cancer Research Center DKFZ, Heidelberg, Germany; Department of Dermatology, Venereology and Allergology, University Medical Center Mannheim, Ruprecht-Karl University of Heidelberg, 69120 Heidelberg, Germany
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