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René CA, Parks RJ. Bioengineering extracellular vesicle cargo for optimal therapeutic efficiency. Mol Ther Methods Clin Dev 2024; 32:101259. [PMID: 38770107 PMCID: PMC11103572 DOI: 10.1016/j.omtm.2024.101259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/22/2024]
Abstract
Extracellular vesicles (EVs) have the innate ability to carry proteins, lipids, and nucleic acids between cells, and thus these vesicles have gained much attention as potential therapeutic delivery vehicles. Many strategies have been explored to enhance the loading of specific cargoes of interest into EVs, which could result in the delivery of more therapeutic to recipient cells, thus enhancing therapeutic efficacy. In this review, we discuss the natural biogenesis of EVs, the mechanism by which proteins and nucleic acids are selected for inclusion in EVs, and novel methods that have been employed to enhance loading of specific cargoes into EVs. As well, we discuss biodistribution of administered EVs in vivo and summarize clinical trials that have attempted to harness the therapeutic potential of EVs.
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Affiliation(s)
- Charlotte A. René
- Regenerative Medicine Program, Ottawa Hospital Research Institute, Ottawa, ON K1H 8L6, Canada
- Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, ON K1H 8M5, Canada
- Centre for Neuromuscular Disease, University of Ottawa, Ottawa, ON K1H 8M5, Canada
| | - Robin J. Parks
- Regenerative Medicine Program, Ottawa Hospital Research Institute, Ottawa, ON K1H 8L6, Canada
- Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, ON K1H 8M5, Canada
- Centre for Neuromuscular Disease, University of Ottawa, Ottawa, ON K1H 8M5, Canada
- Department of Medicine, The Ottawa Hospital and University of Ottawa, Ottawa, ON K1H 8L6, Canada
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2
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Christian SL, Cambridge G. Editorial: CD24 in the regulation of cellular development and disease. Front Immunol 2024; 15:1374701. [PMID: 38476222 PMCID: PMC10927940 DOI: 10.3389/fimmu.2024.1374701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Accepted: 02/20/2024] [Indexed: 03/14/2024] Open
Affiliation(s)
- Sherri L. Christian
- Department of Biochemistry, Memorial University of Newfoundland, St. John’s, NL, Canada
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3
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Armstrong CW, Mensah FFK, Leandro MJ, Reddy V, Gooley PR, Berkovitz S, Cambridge G. In vitro B cell experiments explore the role of CD24, CD38, and energy metabolism in ME/CFS. Front Immunol 2024; 14:1178882. [PMID: 38259473 PMCID: PMC10800820 DOI: 10.3389/fimmu.2023.1178882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Accepted: 12/08/2023] [Indexed: 01/24/2024] Open
Abstract
Introduction Disturbances of energy metabolism contribute to the clinical manifestations of myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS). Previously, we found that B cells from ME/CFS patients have an increased expression of CD24, a modulator of many cellular functions including those of cell stress. The relative ability of B cells from ME/CFS patients and healthy controls (HC) to respond to rapid changes in energy demand was compared. Methods CD24, the ectonucleotidases CD39 and CD73, the NAD-degrading enzyme CD38, and mitochondrial mass (MM) were measured following cross-linking of the B cell receptor and costimulation with either T-cell-dependent or Toll-like-receptor-9-dependent agonists. The levels of metabolites consumed/produced were measured using 1H-NMR spectroscopy and analyzed in relation to cell growth and immunophenotype. Results Proliferating B cells from patients with ME/CFS showed a lower mitochondrial mass and a significantly increased usage of essential amino acids compared with those from HC, with a significantly delayed loss of CD24 and an increased expression of CD38 following stimulation. Discussion The immunophenotype results suggested the triggering of a stress response in ME/CFS B cells associated with the increased usage of additional substrates to maintain necessary ATP levels. Disturbances in energy metabolism in ME/CFS B cells were thus confirmed in a dynamic in vitro model, providing the basis for further mechanistic investigations.
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Affiliation(s)
- Christopher W. Armstrong
- Department of Biochemistry and Pharmacology, Bio21 Molecular Science and Biotechnology Institute, University of Melbourne, Melbourne, VIC, Australia
| | - Fane F. K. Mensah
- Department of Medicine, University College London, London, United Kingdom
| | - Maria J. Leandro
- Department of Medicine, University College London, London, United Kingdom
| | - Venkat Reddy
- Department of Medicine, University College London, London, United Kingdom
| | - Paul R. Gooley
- Department of Biochemistry and Pharmacology, Bio21 Molecular Science and Biotechnology Institute, University of Melbourne, Melbourne, VIC, Australia
| | - Saul Berkovitz
- Chronic Fatigue Service, Royal London Hospital of Integrated Medicine, University College Hospitals National Health Service Trust, London, United Kingdom
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4
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Gutknecht MF, Holodick NE, Rothstein TL. B cell extracellular vesicles contain monomeric IgM that binds antigen and enters target cells. iScience 2023; 26:107526. [PMID: 37636058 PMCID: PMC10448175 DOI: 10.1016/j.isci.2023.107526] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 03/18/2023] [Accepted: 07/28/2023] [Indexed: 08/29/2023] Open
Abstract
The production and release of small phospholipid membrane vesicles, or extracellular vesicles (EVs), is a trait of most prokaryotic and eukaryotic cells. EVs display heterogeneity in content, size, biogenesis, activity, and function. B cells uniquely express immunoglobulin and produce EVs; however, the relationship between these entities has not been clarified. Here, we used several methodologies to isolate large (11,000 × g) and small (110,000 × g) EVs and evaluate their IgM content, characteristics and activity. We found that B cells from multiple cell lines and primary B cells produce EVs that display monomeric IgM on the surface and contain encapsulated monomeric IgM, which is independent of secreted pentameric IgM. Our data indicate EV IgM can bind antigen specifically, and EV IgM can be incorporated intracellularly into secondary cells. These results suggest immunological activities different from secreted pentameric IgM that may constitute a separate and distinct antibody distribution system.
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Affiliation(s)
- Michael F. Gutknecht
- Department of Investigative Medicine and Center for Immunobiology, Western Michigan University Homer Stryker M.D. School of Medicine, Kalamazoo, MI, USA
| | - Nichol E. Holodick
- Department of Investigative Medicine and Center for Immunobiology, Western Michigan University Homer Stryker M.D. School of Medicine, Kalamazoo, MI, USA
| | - Thomas L. Rothstein
- Department of Investigative Medicine and Center for Immunobiology, Western Michigan University Homer Stryker M.D. School of Medicine, Kalamazoo, MI, USA
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5
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Clancy JW, D'Souza-Schorey C. Tumor-Derived Extracellular Vesicles: Multifunctional Entities in the Tumor Microenvironment. ANNUAL REVIEW OF PATHOLOGY 2023; 18:205-229. [PMID: 36202098 PMCID: PMC10410237 DOI: 10.1146/annurev-pathmechdis-031521-022116] [Citation(s) in RCA: 30] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Tumor cells release extracellular vesicles (EVs) that can function as mediators of intercellular communication in the tumor microenvironment. EVs contain a host of bioactive cargo, including membrane, cytosolic, and nuclear proteins, in addition to noncoding RNAs, other RNA types, and double-stranded DNA fragments. These shed vesicles may deposit paracrine information and can also be taken up by stromal cells, causing the recipient cells to undergo phenotypic changes that profoundly impact diverse facets of cancer progression. For example, this unique form of cellular cross talk helps condition the premetastatic niche, facilitates evasion of the immune response, and promotes invasive and metastatic activity. These findings, coupled with those demonstrating that the number and content of EVs produced by tumors can vary depending on their tumor of origin, disease stage, or response to therapy, have raised the exciting possibility that EVs can be used for risk stratification, diagnostic, and even prognostic purposes. We summarize recent developments and the current knowledge of EV cargoes, their impact on disease progression, and implementation of EV-based liquid biopsies as tumor biomarkers.
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Affiliation(s)
- James W Clancy
- Department of Biological Sciences, University of Notre Dame, Notre Dame, Indiana, USA; ,
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6
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Christian SL. CD24 as a Potential Therapeutic Target in Patients with B-Cell Leukemia and Lymphoma: Current Insights. Onco Targets Ther 2022; 15:1391-1402. [PMID: 36425299 PMCID: PMC9680537 DOI: 10.2147/ott.s366625] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 11/10/2022] [Indexed: 01/12/2024] Open
Abstract
CD24 is a highly glycosylated glycophosphatidylinositol (GPI)-anchored protein that is expressed in many types of differentiating cells and some mature cells of the immune system as well as the central nervous system. CD24 has been extensively used as a biomarker for developing B cells as its expression levels change over the course of B cell development. Functionally, engagement of CD24 induces apoptosis in developing B cells and restricts cell growth in more mature cell types. Interestingly, CD24 is also expressed on many hematological and solid tumors. As such, it has been investigated as a therapeutic target in many solid tumors including ovarian, colorectal, pancreatic, lung and others. Most of the B-cell leukemias and lymphomas studied to date express CD24 but its role as a therapeutic target in these malignancies has, thus far, been understudied. Here, I review what is known about CD24 biology with a focus on B cell development and activation followed by a brief overview of how CD24 is being targeted in solid tumors. This is followed by an assessment of the value of CD24 as a therapeutic target in B cell leukemia and lymphoma in humans, including an evaluation of the challenges in using CD24 as a target considering its pattern of expression on normal cells.
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Affiliation(s)
- Sherri L Christian
- Department of Biochemistry, Memorial University of Newfoundland, St. John’s, NL, Canada
- Beatrice Hunter Cancer Research Institute, Halifax, NS, Canada
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7
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Phan HD, Longjohn MN, Gormley DJB, Smith RH, Dang-Lawson M, Matsuuchi L, Gold MR, Christian SL. CD24 and IgM Stimulation of B Cells Triggers Transfer of Functional B Cell Receptor to B Cell Recipients Via Extracellular Vesicles. THE JOURNAL OF IMMUNOLOGY 2021; 207:3004-3015. [PMID: 34772696 DOI: 10.4049/jimmunol.2100025] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Accepted: 10/01/2021] [Indexed: 01/17/2023]
Abstract
Extracellular vesicles (EVs) are membrane-encapsulated nanoparticles that carry bioactive cargo, including proteins, lipids, and nucleic acids. Once taken up by target cells, EVs can modify the physiology of the recipient cells. In past studies, we reported that engagement of the glycophosphatidylinositol-anchored receptor CD24 on B lymphocytes (B cells) causes the release of EVs. However, a potential function for these EVs was not clear. Thus, we investigated whether EVs derived from CD24 or IgM-stimulated donor WEHI-231 murine B cells can transfer functional cargo to recipient cells. We employed a model system where donor cells expressing palmitoylated GFP (WEHI-231-GFP) were cocultured, after stimulation, with recipient cells lacking either IgM (WEHI-303 murine B cells) or CD24 (CD24 knockout mouse bone marrow B cells). Uptake of lipid-associated GFP, IgM, or CD24 by labeled recipient cells was analyzed by flow cytometry. We found that stimulation of either CD24 or IgM on the donor cells caused the transfer of lipids, CD24, and IgM to recipient cells. Importantly, we found that the transferred receptors are functional in recipient cells, thus endowing recipient cells with a second BCR or sensitivity to anti-CD24-induced apoptosis. In the case of the BCR, we found that EVs were conclusively involved in this transfer, whereas in the case in the CD24 the involvement of EVs is suggested. Overall, these data show that extracellular signals received by one cell can change the sensitivity of neighboring cells to the same or different stimuli, which may impact B cell development or activation.
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Affiliation(s)
- Hong-Dien Phan
- Department of Biochemistry, Memorial University of Newfoundland, St. John's, Newfoundland and Labrador, Canada
| | - Modeline N Longjohn
- Department of Biochemistry, Memorial University of Newfoundland, St. John's, Newfoundland and Labrador, Canada.,Beatrice Hunter Cancer Research Institute, Halifax, Nova Scotia, Canada
| | - Delania J B Gormley
- Department of Biochemistry, Memorial University of Newfoundland, St. John's, Newfoundland and Labrador, Canada
| | - Reilly H Smith
- Department of Biochemistry, Memorial University of Newfoundland, St. John's, Newfoundland and Labrador, Canada
| | - May Dang-Lawson
- Department of Microbiology and Immunology and the Life Sciences Institute, University of British Columbia, Vancouver, British Columbia, Canada; and.,Department of Zoology and the Life Sciences Institute, University of British Columbia, Vancouver, British Columbia, Canada
| | - Linda Matsuuchi
- Department of Zoology and the Life Sciences Institute, University of British Columbia, Vancouver, British Columbia, Canada
| | - Michael R Gold
- Department of Microbiology and Immunology and the Life Sciences Institute, University of British Columbia, Vancouver, British Columbia, Canada; and
| | - Sherri L Christian
- Department of Biochemistry, Memorial University of Newfoundland, St. John's, Newfoundland and Labrador, Canada; .,Beatrice Hunter Cancer Research Institute, Halifax, Nova Scotia, Canada
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Barok M, Puhka M, Yazdi N, Joensuu H. Extracellular vesicles as modifiers of antibody-drug conjugate efficacy. J Extracell Vesicles 2021; 10:e12070. [PMID: 33613875 PMCID: PMC7881363 DOI: 10.1002/jev2.12070] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 01/26/2021] [Accepted: 02/01/2021] [Indexed: 12/17/2022] Open
Abstract
Antibody-drug conjugates (ADCs) are a new class of anti-cancer drugs that consist of a monoclonal antibody, a highly potent small-molecule cytotoxic drug, and a chemical linker between the two. ADCs can selectively deliver cytotoxic drugs to cancer cells leading to a reduced systemic exposure and a wider therapeutic window. To date, nine ADCs have received marketing approval, and over 100 are being investigated in nearly 600 clinical trials. The target antigens of at least eight out of the nine approved anti-cancer ADCs and of 69 investigational ADCs are present on extracellular vesicles (EVs) (tiny particles produced by almost all types of cells) that may carry their contents into local and distant cells. Therefore, the EVs have a potential to mediate both the anti-cancer effects and the adverse effects of ADCs. In this overview, we discuss the mechanisms of action of ADCs and the resistance mechanisms to them, the EV-mediated resistance mechanisms to small molecule anti-cancer drugs and anti-cancer monoclonal antibodies, and the EVs as modifiers of ADC efficacy and safety.
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Affiliation(s)
- Mark Barok
- Helsinki University Hospital and University of HelsinkiHelsinkiFinland
- Laboratory of Molecular OncologyUniversity of HelsinkiBiomedicumHelsinkiFinland
| | - Maija Puhka
- Institute for Molecular Medicine FIMMEV and HiPrep CoreUniversity of HelsinkiHelsinkiFinland
| | - Narjes Yazdi
- Helsinki University Hospital and University of HelsinkiHelsinkiFinland
- Laboratory of Molecular OncologyUniversity of HelsinkiBiomedicumHelsinkiFinland
| | - Heikki Joensuu
- Helsinki University Hospital and University of HelsinkiHelsinkiFinland
- Laboratory of Molecular OncologyUniversity of HelsinkiBiomedicumHelsinkiFinland
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9
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Abstract
How did life begin on Earth? And is there life elsewhere in the Cosmos? Challenging questions, indeed. The series of conferences established by NoR CEL in 2013 addresses these very questions. This paper comprises a summary report of oral presentations that were delivered by NoR CEL’s network members during the 2018 Athens conference and, as such, disseminates the latest research which they have put forward. More in depth material can be found by consulting the contributors referenced papers. Overall, the outcome of this conspectus on the conference demonstrates a case for the existence of “probable chemistry” during the prebiotic epoch.
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10
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Identification of CD24 as a potential diagnostic and therapeutic target for malignant pleural mesothelioma. Cell Death Discov 2020; 6:127. [PMID: 33298865 PMCID: PMC7674463 DOI: 10.1038/s41420-020-00364-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Revised: 09/28/2020] [Accepted: 10/30/2020] [Indexed: 12/13/2022] Open
Abstract
Malignant pleural mesothelioma (MPM) is an aggressive malignancy of the pleura that is currently incurable due to the lack of an effective early diagnostic method and specific medication. The CDKN2A (p16) and NF2 genes are both frequently mutated in MPM. To understand how these mutations contribute to MPM tumor growth, we generated NF2/p16 double-knockout (DKO) cell clones using human MeT-5A and HOMC-B1 mesothelial cell lines. Cell growth and migration activities were significantly increased in DKO compared with parental cells. cDNA microarray analysis revealed differences in global gene expression profiles between DKO and parental cells. Quantitative PCR and western blot analyses showed upregulation of CD24 concomitant with increased phosphorylation of AKT, p70S6K, and c-Jun in DKO clones. This upregulation was abrogated by exogenous expression of NF2 and p16. CD24 knockdown in DKO cells significantly decreased TGF-β1 expression and increased expression of E-cadherin, an epithelial-mesenchymal transition marker. CD24 was highly expressed in human mesothelioma tissues (28/45 cases, 62%) and associated with the loss of NF2 and p16. Public data analysis revealed a significantly shorter survival time in MPM patients with high CD24 gene expression levels. These results strongly indicate the potential use of CD24 as a prognostic marker as well as a novel diagnostic and therapeutic target for MPM.
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11
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Smith NC, Wajnberg G, Chacko S, Woldemariam NT, Lacroix J, Crapoulet N, Ayre DC, Lewis SM, Rise ML, Andreassen R, Christian SL. Characterization of miRNAs in Extracellular Vesicles Released From Atlantic Salmon Monocyte-Like and Macrophage-Like Cells. Front Immunol 2020; 11:587931. [PMID: 33262769 PMCID: PMC7686242 DOI: 10.3389/fimmu.2020.587931] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Accepted: 10/09/2020] [Indexed: 12/18/2022] Open
Abstract
Cell-derived extracellular vesicles (EVs) participate in cell-cell communication via transfer of molecular cargo including genetic material like miRNAs. In mammals, it has previously been established that EV-mediated transfer of miRNAs can alter the development or function of immune cells, such as macrophages. Our previous research revealed that Atlantic salmon head kidney leukocytes (HKLs) change their morphology, phagocytic ability and miRNA profile from primarily “monocyte-like” at Day 1 to primarily “macrophage-like” at Day 5 of culture. Therefore, we aimed to characterize the miRNA cargo packaged in EVs released from these two cell populations. We successfully isolated EVs from Atlantic salmon HKL culture supernatants using the established Vn96 peptide-based pull-down. Isolation was validated using transmission electron microscopy, nanoparticle tracking analysis, and Western blotting. RNA-sequencing identified 19 differentially enriched (DE) miRNAs packaged in Day 1 versus Day 5 EVs. Several of the highly abundant miRNAs, including those that were DE (e.g. ssa-miR-146a, ssa-miR-155 and ssa-miR-731), were previously identified as DE in HKLs and are associated with macrophage differentiation and immune response in other species. Interestingly, the abundance relative of the miRNAs in EVs, including the most abundant miRNA (ssa-miR-125b), was different than the miRNA abundance in HKLs, indicating selective packaging of miRNAs in EVs. Further study of the miRNA cargo in EVs derived from fish immune cells will be an important next step in identifying EV biomarkers useful for evaluating immune cell function, fish health, or response to disease.
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Affiliation(s)
- Nicole C Smith
- Department of Ocean Sciences, Memorial University, St. John's, NL, Canada
| | | | - Simi Chacko
- Atlantic Cancer Research Institute, Moncton, NB, Canada
| | - Nardos T Woldemariam
- Department of Life Sciences and Health, OsloMet-Oslo Metropolitan University, Oslo, Norway
| | | | | | - D Craig Ayre
- Department of Molecular Sciences, University of Medicine and Health Sciences, Basseterre, Saint Kitts and Nevis
| | - Stephen M Lewis
- Atlantic Cancer Research Institute, Moncton, NB, Canada.,Department of Chemistry & Biochemistry, Université de Moncton, Moncton, NB, Canada.,Beatrice Hunter Cancer Research Institute, Halifax, NS, Canada
| | - Matthew L Rise
- Department of Ocean Sciences, Memorial University, St. John's, NL, Canada
| | - Rune Andreassen
- Department of Life Sciences and Health, OsloMet-Oslo Metropolitan University, Oslo, Norway
| | - Sherri L Christian
- Beatrice Hunter Cancer Research Institute, Halifax, NS, Canada.,Department of Biochemistry, Memorial University, St. John's, NL, Canada
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12
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Longjohn MN, Hudson JABJ, Smith NC, Rise ML, Moorehead PC, Christian SL. Deciphering the messages carried by extracellular vesicles in hematological malignancies. Blood Rev 2020; 46:100734. [PMID: 32736879 DOI: 10.1016/j.blre.2020.100734] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 06/10/2020] [Accepted: 07/08/2020] [Indexed: 12/15/2022]
Abstract
Extracellular vesicles (EVs) are nanosized membrane-bound particles released from all living cells examined thus far. EVs can transfer information in the form of proteins, nucleic acids, and lipids from donor cells to recipient cells. Here we summarize recent advances in understanding the role(s) EVs play in hematological malignancies (HM) and outline potential prognostic and diagnostic strategies using EVs. EVs have been shown to promote proliferation and angiogenesis, and alter the bone marrow microenvironment to favour the growth and survival of diverse HM. They also promote evasion of anti-cancer immune responses and increase multi-drug resistance. Using knowledge of EV biology, including HM-specific packaging of cargo, EV based diagnostics and therapeutic approaches show substantial clinical promise. However, while EVs may represent a new paradigm to solve many of the challenges in treating and/or diagnosing HM, much work is needed before they can be used clinically to improve patient outcomes.
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Affiliation(s)
| | - Jo-Anna B J Hudson
- Discipline of Pediatrics, Memorial University of Newfoundland, Canada; University of Ottawa, Children's Hospital of Eastern Ontario, Canada
| | - Nicole C Smith
- Department of Ocean Sciences, Memorial University of Newfoundland, Canada
| | - Matthew L Rise
- Department of Ocean Sciences, Memorial University of Newfoundland, Canada
| | - Paul C Moorehead
- Discipline of Pediatrics, Memorial University of Newfoundland, Canada
| | - Sherri L Christian
- Department of Biochemistry, Memorial University of Newfoundland, Canada.
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13
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Molecules to Microbes. SCI 2020. [DOI: 10.3390/sci2020020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
How did life begin on Earth? And is there life elsewhere in the Cosmos? Challenging questions, indeed. The series of conferences established by NoR CEL in 2013, addresses these very same questions. The basis for this paper is the summary report of oral presentations that were delivered by NoR CEL’s network members during the 2018 Athens conference and, as such, disseminates the latest research which they have put forward. More in depth material can be found by consulting the contributors referenced papers. Overall, the outcome of this conspectus on the conference demonstrates a case for the existence of “probable chemistry” during the prebiotic epoch.
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14
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Extracellular Vesicle Isolation and Characterization from Periprosthetic Joint Synovial Fluid in Revision Total Joint Arthroplasty. J Clin Med 2020; 9:jcm9020516. [PMID: 32075029 PMCID: PMC7074102 DOI: 10.3390/jcm9020516] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 02/07/2020] [Accepted: 02/11/2020] [Indexed: 01/08/2023] Open
Abstract
Extracellular vesicles (EVs) comprise an as yet insufficiently investigated intercellular communication pathway in the field of revision total joint arthroplasty (RTJA). This study examined whether periprosthetic joint synovial fluid contains EVs, developed a protocol for their isolation and characterized them with respect to quantity, size, surface markers as well as documented their differences between aseptic implant failure (AIF) and periprosthetic joint infection (PJI). EV isolation was accomplished using ultracentrifugation, electron microscopy (EM) and nanoparticle tracking analysis evaluated EV presence as well as particle size and quantity. EV surface markers were studied by a bead-based multiplex analysis. Using our protocol, EM confirmed the presence of EVs in periprosthetic joint synovial fluid. Higher EV particle concentrations and decreased particle sizes were apparent for PJI. Multiplex analysis confirmed EV-typical surface epitopes and revealed upregulated CD44 and HLA-DR/DP/DQ for AIF, as well as increased CD40 and CD105. Our protocol achieved isolation of EVs from periprosthetic joint synovial fluid, confirmed by EM and multiplex analysis. Characterization was documented with respect to size, concentration and epitope surface signature. Our results indicate various differences between PJI and AIF EVs. This pilot study enables new research approaches and rising diagnostic opportunities in the field of RTJA.
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Abstract
How did life begin on Earth? And is there life elsewhere in the Cosmos? Challenging questions, indeed. The series of conferences established by NoR CEL in 2013, addresses these very same questions. The basis for this paper is the summary report of oral presentations that were delivered by NoR CEL’s network members during the 2018 Athens conference and, as such, disseminates the latest research which they have put forward. More in depth material can be found by consulting the contributors referenced papers. Overall, the outcome of this conspectus on the conference demonstrates a case for the existence of “probable chemistry” during the prebiotic epoch.
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16
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Ontoria-Oviedo I, Dorronsoro A, Sánchez R, Ciria M, Gómez-Ferrer M, Buigues M, Grueso E, Tejedor S, García-García F, González-King H, Garcia NA, Peiró-Molina E, Sepúlveda P. Extracellular Vesicles Secreted by Hypoxic AC10 Cardiomyocytes Modulate Fibroblast Cell Motility. Front Cardiovasc Med 2018; 5:152. [PMID: 30410918 PMCID: PMC6209632 DOI: 10.3389/fcvm.2018.00152] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Accepted: 10/05/2018] [Indexed: 01/09/2023] Open
Abstract
Extracellular vesicles (EVs) are small membrane vesicles secreted by most cell types with important roles in cell-to-cell communication. To assess their relevance in the context of heart ischemia, EVs isolated from the AC10 ventricular cardiomyocyte cell line (CM-EVs), exposed to normoxia (Nx) or hypoxia (Hx), were incubated with fibroblasts (Fb) and endothelial cells (EC). CM-EVs were studied using electron microscopy, nanoparticle tracking analysis (NTA), western blotting and proteomic analysis. Results showed that EVs had a strong preference to be internalized by EC over fibroblasts, suggesting an active exosome-based communication mechanism between CM and EC in the heart. In Matrigel tube-formation assays, Hx CM-EVs were inferior to Nx CM-EVs in angiogenesis. By contrast, in a wound-healing assay, wound closure was faster in fibroblasts treated with Hx CM-EVs than with Nx CM-EVs, supporting a pro-fibrotic effect of Hx CM-EVs. Overall, these observations were consistent with the different protein cargoes detected by proteomic analysis under Nx and Hx conditions and the biological pathways identified. The paracrine crosstalk between CM-EVs, Fb, and EC in different physiological conditions could account for the contribution of CM-EVs to cardiac remodeling after an ischemic insult.
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Affiliation(s)
- Imelda Ontoria-Oviedo
- Regenerative Medicine and Heart Transplantation Unit, Instituto de Investigación Sanitaria La Fe, Valencia, Spain.,Associated Unit for Cardiovascular Repair, Instituto de Investigación Sanitaria La Fe-Centro de Investigación Príncipe Felipe, Valencia, Spain
| | - Akaitz Dorronsoro
- Regenerative Medicine and Heart Transplantation Unit, Instituto de Investigación Sanitaria La Fe, Valencia, Spain.,Associated Unit for Cardiovascular Repair, Instituto de Investigación Sanitaria La Fe-Centro de Investigación Príncipe Felipe, Valencia, Spain
| | - Rafael Sánchez
- Regenerative Medicine and Heart Transplantation Unit, Instituto de Investigación Sanitaria La Fe, Valencia, Spain.,Associated Unit for Cardiovascular Repair, Instituto de Investigación Sanitaria La Fe-Centro de Investigación Príncipe Felipe, Valencia, Spain
| | - Maria Ciria
- Regenerative Medicine and Heart Transplantation Unit, Instituto de Investigación Sanitaria La Fe, Valencia, Spain.,Associated Unit for Cardiovascular Repair, Instituto de Investigación Sanitaria La Fe-Centro de Investigación Príncipe Felipe, Valencia, Spain
| | - Marta Gómez-Ferrer
- Regenerative Medicine and Heart Transplantation Unit, Instituto de Investigación Sanitaria La Fe, Valencia, Spain.,Associated Unit for Cardiovascular Repair, Instituto de Investigación Sanitaria La Fe-Centro de Investigación Príncipe Felipe, Valencia, Spain
| | - Marc Buigues
- Regenerative Medicine and Heart Transplantation Unit, Instituto de Investigación Sanitaria La Fe, Valencia, Spain
| | - Elena Grueso
- Regenerative Medicine and Heart Transplantation Unit, Instituto de Investigación Sanitaria La Fe, Valencia, Spain.,Associated Unit for Cardiovascular Repair, Instituto de Investigación Sanitaria La Fe-Centro de Investigación Príncipe Felipe, Valencia, Spain
| | - Sandra Tejedor
- Regenerative Medicine and Heart Transplantation Unit, Instituto de Investigación Sanitaria La Fe, Valencia, Spain.,Associated Unit for Cardiovascular Repair, Instituto de Investigación Sanitaria La Fe-Centro de Investigación Príncipe Felipe, Valencia, Spain
| | - Francisco García-García
- Bioinformatics and Biostatistics Unit, Centro de Investigación Principe Felipe, Valencia, Spain
| | - Hernán González-King
- Regenerative Medicine and Heart Transplantation Unit, Instituto de Investigación Sanitaria La Fe, Valencia, Spain.,Associated Unit for Cardiovascular Repair, Instituto de Investigación Sanitaria La Fe-Centro de Investigación Príncipe Felipe, Valencia, Spain
| | - Nahuel A Garcia
- Regenerative Medicine and Heart Transplantation Unit, Instituto de Investigación Sanitaria La Fe, Valencia, Spain
| | - Esteban Peiró-Molina
- Regenerative Medicine and Heart Transplantation Unit, Instituto de Investigación Sanitaria La Fe, Valencia, Spain
| | - Pilar Sepúlveda
- Regenerative Medicine and Heart Transplantation Unit, Instituto de Investigación Sanitaria La Fe, Valencia, Spain.,Associated Unit for Cardiovascular Repair, Instituto de Investigación Sanitaria La Fe-Centro de Investigación Príncipe Felipe, Valencia, Spain
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17
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Joy AP, Ayre DC, Chute IC, Beauregard AP, Wajnberg G, Ghosh A, Lewis SM, Ouellette RJ, Barnett DA. Proteome profiling of extracellular vesicles captured with the affinity peptide Vn96: comparison of Laemmli and TRIzol© protein-extraction methods. J Extracell Vesicles 2018; 7:1438727. [PMID: 29511462 PMCID: PMC5827780 DOI: 10.1080/20013078.2018.1438727] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2017] [Accepted: 01/30/2018] [Indexed: 12/21/2022] Open
Abstract
Sample amount is often a limiting factor for multi-parametric analyses that encompass at least three areas of '-omics' research: genomics, transcriptomics and proteomics. Limited sample amounts are also an important consideration when these multi-parametric analyses are performed on extracellular vesicles (EVs), as the amount of EVs (and EV cargo) that can be isolated is often very low. It is well understood that a monophasic solution of phenol and guanidine isothiocyanate (i.e. TRIzol©) can simultaneously isolate DNA, RNA and proteins from biological samples; however, it is most commonly used for the extraction of RNA. Validation of this reagent for the isolation of multiple classes of biological molecules from EVs would provide a widely applicable method for performing multi-parametric analyses of EV material. In this report, we describe a comparison of proteins identified from EVs processed with either TRIzol© or the conventional Laemmli buffer protein-extraction reagents. EVs were isolated from 3 mL of cell-culture supernatant derived from MCF-10A, MCF-7 and MDA-MB-231 cells using the Vn96 EV capture technology. For the TRIzol© extraction protocol, proteins were precipitated with acetone from the organic phase and then re-solubilized in a mixture of 8M urea, 0.2% SDS and 1 M Tris-HCl pH 6.8, followed by dilution in 5× loading buffer prior to fractionation with 1D SDS-PAGE. NanoLC-MS/MS of the trypsin-digested proteins was used to generate proteomic profiles from EV protein samples extracted with each method. Of the identified proteins, 57.7%, 69.2% and 57.0% were common to both extraction methods for EVs from MCF-10A, MCF-7 and MDA-MB-231, respectively. Our results suggest that TRIzol© extraction of proteins from EVs has significant equivalence to the traditional Laemmli method. The advantage of using TRIzol
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Affiliation(s)
| | | | - Ian C. Chute
- Atlantic Cancer Research Institute, Moncton, Canada
| | | | | | - Anirban Ghosh
- Atlantic Cancer Research Institute, Moncton, Canada
- Département de Chimie et Biochimie, Université de Moncton, Pavillon Rémi-Rossignol, Moncton, Canada
| | - Stephen M. Lewis
- Atlantic Cancer Research Institute, Moncton, Canada
- Department of Microbiology and Immunology, Dalhousie University, Halifax, Canada
- Department of Biology, University of New Brunswick, Saint John, Canada
| | - Rodney J. Ouellette
- Atlantic Cancer Research Institute, Moncton, Canada
- Département de Chimie et Biochimie, Université de Moncton, Pavillon Rémi-Rossignol, Moncton, Canada
| | - David A. Barnett
- Atlantic Cancer Research Institute, Moncton, Canada
- Département de Chimie et Biochimie, Université de Moncton, Pavillon Rémi-Rossignol, Moncton, Canada
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