1
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Tan YY, O'Dea KP, Tsiridou DM, Pac Soo A, Koh MW, Beckett F, Takata M. Circulating Myeloid Cell-derived Extracellular Vesicles as Mediators of Indirect Acute Lung Injury. Am J Respir Cell Mol Biol 2023; 68:140-149. [PMID: 36150169 DOI: 10.1165/rcmb.2022-0207oc] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Blood-borne myeloid cells, neutrophils and monocytes, play a central role in the development of indirect acute lung injury (ALI) during sepsis and noninfectious systemic inflammatory response syndrome. By contrast, the contribution of circulating myeloid cell-derived extracellular vesicles (EVs) to ALI is unknown, despite acute increases in their numbers during sepsis and systemic inflammatory response syndrome. Here, we investigated the direct role of circulating myeloid-EVs in ALI using a mouse isolated perfused lung system and a human cell coculture model of pulmonary vascular inflammation consisting of lung microvascular endothelial cells and peripheral blood mononuclear cells. Total and immunoaffinity-isolated myeloid (CD11b+) and platelet (CD41+) EVs were prepared from the plasma of intravenous LPS-injected endotoxemic donor mice and transferred directly into recipient lungs. Two-hour perfusion of lungs with unfractionated EVs from a single donor induced pulmonary edema formation and increased perfusate concentrations of RAGE (receptor for advanced glycation end products), consistent with lung injury. These responses were abolished in the lungs of monocyte-depleted mice. The isolated myeloid- but not platelet-EVs produced a similar injury response and the acute intravascular release of proinflammatory cytokines and endothelial injury markers. In the in vitro human coculture model, human myeloid- (CD11b+) but not platelet- (CD61+) EVs isolated from LPS-stimulated whole blood induced acute proinflammatory cytokine production and endothelial activation. These findings implicate circulating myeloid-EVs as acute mediators of pulmonary vascular inflammation and edema, suggesting an alternative therapeutic target for attenuation of indirect ALI.
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Affiliation(s)
- Ying Ying Tan
- Division of Anaesthetics, Pain Medicine, and Intensive Care, Imperial College London, Chelsea and Westminster Hospital, London, United Kingdom
| | - Kieran P O'Dea
- Division of Anaesthetics, Pain Medicine, and Intensive Care, Imperial College London, Chelsea and Westminster Hospital, London, United Kingdom
| | - Diianeira Maria Tsiridou
- Division of Anaesthetics, Pain Medicine, and Intensive Care, Imperial College London, Chelsea and Westminster Hospital, London, United Kingdom
| | - Aurelie Pac Soo
- Division of Anaesthetics, Pain Medicine, and Intensive Care, Imperial College London, Chelsea and Westminster Hospital, London, United Kingdom
| | - Marissa W Koh
- Division of Anaesthetics, Pain Medicine, and Intensive Care, Imperial College London, Chelsea and Westminster Hospital, London, United Kingdom
| | - Florence Beckett
- Division of Anaesthetics, Pain Medicine, and Intensive Care, Imperial College London, Chelsea and Westminster Hospital, London, United Kingdom
| | - Masao Takata
- Division of Anaesthetics, Pain Medicine, and Intensive Care, Imperial College London, Chelsea and Westminster Hospital, London, United Kingdom
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2
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Hu Y, Sun Y, Wan C, Dai X, Wu S, Lo PC, Huang J, Lovell JF, Jin H, Yang K. Microparticles: biogenesis, characteristics and intervention therapy for cancers in preclinical and clinical research. J Nanobiotechnology 2022; 20:189. [PMID: 35418077 PMCID: PMC9006557 DOI: 10.1186/s12951-022-01358-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Accepted: 03/08/2022] [Indexed: 12/24/2022] Open
Abstract
Extracellular vesicles (EVs), spherical biological vesicles, mainly contain nucleic acids, proteins, lipids and metabolites for biological information transfer between cells. Microparticles (MPs), a subtype of EVs, directly emerge from plasma membranes, and have gained interest in recent years. Specific cell stimulation conditions, such as ultraviolet and X-rays irradiation, can induce the release of MPs, which are endowed with unique antitumor functionalities, either for therapeutic vaccines or as direct antitumor agents. Moreover, the size of MPs (100–1000 nm) and their spherical structures surrounded by a lipid bilayer membrane allow MPs to function as delivery vectors for bioactive antitumor compounds, with favorable phamacokinetic behavior, immunostimulatory activity and biological function, without inherent carrier-specific toxic side effects. In this review, the mechanisms underlying MP biogenesis, factors that influence MP production, properties of MP membranes, size, composition and isolation methods of MPs are discussed. Additionally, the applications and mechanisms of action of MPs, as well as the main hurdles for their applications in cancer management, are introduced.
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Affiliation(s)
- Yan Hu
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Yajie Sun
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Chao Wan
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Xiaomeng Dai
- Department of Medical Oncology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Shuhui Wu
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Pui-Chi Lo
- Department of Biomedical Sciences, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong kong, China
| | - Jing Huang
- College of Biomedicine and Health and College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Jonathan F Lovell
- Department of Biomedical Engineering, University at Buffalo, State University of New York, Buffalo, NY, 14260, USA
| | - Honglin Jin
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China. .,College of Biomedicine and Health and College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China.
| | - Kunyu Yang
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
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3
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Piffoux M, Silva AKA, Gazeau F, Salmon H. Potential of on‐chip analysis and engineering techniques for extracellular vesicle bioproduction for therapeutics. VIEW 2022. [DOI: 10.1002/viw.20200175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Affiliation(s)
- Max Piffoux
- Department of Medical Oncology Centre Léon Bérard Lyon France
- INSERM UMR 1197‐Interaction cellules souches‐niches: physiologie tumeurs et réparation tissulaire Villejuif France
- Laboratoire Matière et Systèmes Complexes, CNRS Université de Paris Paris France
| | - Amanda K. A. Silva
- Laboratoire Matière et Systèmes Complexes, CNRS Université de Paris Paris France
| | - Florence Gazeau
- Laboratoire Matière et Systèmes Complexes, CNRS Université de Paris Paris France
| | - Hugo Salmon
- Laboratoire Matière et Systèmes Complexes, CNRS Université de Paris Paris France
- Université de Paris, T3S, INSERM Paris France
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4
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Engineering and loading therapeutic extracellular vesicles for clinical translation: A data reporting frame for comparability. Adv Drug Deliv Rev 2021; 178:113972. [PMID: 34509573 DOI: 10.1016/j.addr.2021.113972] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 07/06/2021] [Accepted: 09/07/2021] [Indexed: 02/08/2023]
Abstract
Extracellular vesicles (EVs) have emerged as new drug delivery systems as well as a regenerative cell-free effectors going beyond academic research to reach industrial research and development (R&D). Many proof-of-concept studies are now published describing the delivery of drugs, nanoparticles or biologics among which nucleic acids, proteins, viruses, etc. Their main interests rely on their intrinsic biocompatibility, targeting capabilities and biological activities. The possibility of loading EVs with exogenous therapeutic drug/nanoparticles or imaging tracers opens up the perspectives to extend EV therapeutic properties and enable EV tracking. Clinical translation is still hampered by the difficulty to produce and load EVs with large scale, efficient and cGMP methods. In this review, we critically discuss important notions related to EV engineering and the methods available with a particular focus on technologies fitted for clinical translation. Besides, we provide a tentative data reporting frame in order to support comparability and standardization in the field.
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5
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Denham J, Spencer SJ. Emerging roles of extracellular vesicles in the intercellular communication for exercise-induced adaptations. Am J Physiol Endocrinol Metab 2020; 319:E320-E329. [PMID: 32603601 DOI: 10.1152/ajpendo.00215.2020] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Complex organisms rely heavily on intercellular communication. The rapidly expanding field of extracellular vesicle biology has made it clear that the necessary intercellular communication occurs partly through their paracrine and endocrine actions. Extracellular vesicles are nanoscale lipid membranes (30-2,000 nm in diameter) that shuttle functional biological material between cells. They are released from numerous tissues and are isolated from nearly all biofluids and cell cultures. Although their biogenesis, cell targeting, and functional roles are incompletely understood, they appear to have crucial roles in physiological and disease processes. Their enormous potential to serve as sensitive biomarkers of disease and also new therapeutic interventions for diseases have gained them considerable attention in recent years. Regular physical exercise training confers systemic health benefits and consequently prevents many age-related degenerative diseases. Many of the molecular mechanisms responsible for the salubrious effects of exercise are known, yet a common underlying mechanism potentially responsible for the holistic health benefits of exercise has only recently been explored (i.e., via extracellular vesicle transport of biological material). Here, we provide an overview of extracellular vesicle biology before outlining the current evidence on the capacity for a single bout and chronic exercise to elicit changes in extracellular vesicle content and modulate their molecular cargo (e.g., small RNAs). We highlight areas for future research and emphasize their potential utility as biomarkers and therapeutic strategies of disease and its prevention.
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Affiliation(s)
- Joshua Denham
- RMIT University, School of Health and Biomedical Sciences, Melbourne, Victoria, Australia
| | - Sarah J Spencer
- RMIT University, School of Health and Biomedical Sciences, Melbourne, Victoria, Australia
- ARC Centre of Excellence for Nanoscale Biophotonics, RMIT University, Melbourne, Victoria, Australia
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6
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Milasan A, Farhat M, Martel C. Extracellular Vesicles as Potential Prognostic Markers of Lymphatic Dysfunction. Front Physiol 2020; 11:476. [PMID: 32523544 PMCID: PMC7261898 DOI: 10.3389/fphys.2020.00476] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Accepted: 04/20/2020] [Indexed: 12/21/2022] Open
Abstract
Despite significant efforts made to treat cardiovascular disease (CVD), more than half of cardiovascular events still occur in asymptomatic subjects devoid of traditional risk factors. These observations underscore the need for the identification of new biomarkers for the prevention of atherosclerosis, the main underlying cause of CVD. Extracellular vesicles (EVs) and lymphatic vessel function are emerging targets in this context. EVs are small vesicles released by cells upon activation or death that are present in several biological tissues and fluids, including blood and lymph. They interact with surrounding cells to transfer their cargo, and the complexity of their biological content makes these EVs potential key players in several chronic inflammatory settings. Many studies focused on the interaction of EVs with the most well-known players of atherosclerosis such as the vascular endothelium, smooth muscle cells and monocytes. However, the fate of EVs within the lymphatic network, a crucial route in the mobilization of cholesterol out the artery wall, is not known. In this review, we aim to bring forward evidence that EVs could be at the interplay between lymphatic function and atherosclerosis by summarizing the recent findings on the characterization of EVs in this setting.
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Affiliation(s)
- Andreea Milasan
- Department of Medicine, Faculty of Medicine, Université de Montréal, Montreal, QC, Canada.,Montreal Heart Institute, Montreal, QC, Canada
| | - Maya Farhat
- Department of Medicine, Faculty of Medicine, Université de Montréal, Montreal, QC, Canada.,Montreal Heart Institute, Montreal, QC, Canada
| | - Catherine Martel
- Department of Medicine, Faculty of Medicine, Université de Montréal, Montreal, QC, Canada.,Montreal Heart Institute, Montreal, QC, Canada
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7
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Chiang S, Kalinowski DS, Dharmasivam M, Braidy N, Richardson DR, Huang MLH. The potential of the novel NAD + supplementing agent, SNH6, as a therapeutic strategy for the treatment of Friedreich's ataxia. Pharmacol Res 2020; 155:104680. [PMID: 32032665 DOI: 10.1016/j.phrs.2020.104680] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 02/03/2020] [Accepted: 02/03/2020] [Indexed: 12/17/2022]
Abstract
Friedreich's ataxia (FA) is due to deficiency of the mitochondrial protein, frataxin, which results in multiple pathologies including a deadly, hypertrophic cardiomyopathy. Frataxin loss leads to deleterious accumulations of redox-active, mitochondrial iron, and suppressed mitochondrial bioenergetics. Hence, there is an urgent need to develop innovative pharmaceuticals. Herein, the activity of the novel compound, 6-methoxy-2-salicylaldehyde nicotinoyl hydrazone (SNH6), was assessed in vivo using the well-characterized muscle creatine kinase (MCK) conditional frataxin knockout (KO) mouse model of FA. The design of SNH6 incorporated a dual-mechanism mediating: (1) NAD+-supplementation to restore cardiac bioenergetics; and (2) iron chelation to remove toxic mitochondrial iron. In these studies, MCK wild-type (WT) and KO mice were treated for 4-weeks from the asymptomatic age of 4.5-weeks to 8.5-weeks of age, where the mouse displays an overt cardiomyopathy. SNH6-treatment significantly elevated NAD+ and markedly increased NAD+ consumption in WT and KO hearts. In SNH6-treated KO mice, nuclear Sirt1 activity was also significantly increased together with the NAD+-metabolic product, nicotinamide (NAM). Therefore, NAD+-supplementation by SNH6 aided mitochondrial function and cardiac bioenergetics. SNH6 also chelated iron in cultured cardiac cells and also removed iron-loading in vivo from the MCK KO heart. Despite its dual beneficial properties of supplementing NAD+ and chelating iron, SNH6 did not mitigate cardiomyopathy development in the MCK KO mouse. Collectively, SNH6 is an innovative therapeutic with marked pharmacological efficacy, which successfully enhanced cardiac NAD+ and nuclear Sirt1 activity and reduced cardiac iron-loading in MCK KO mice. No other pharmaceutical yet designed exhibits both these effective pharmacological properties.
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Affiliation(s)
- Shannon Chiang
- Molecular Pharmacology and Pathology Program, Department of Pathology and Bosch Institute, University of Sydney, Sydney, New South Wales, 2006, Australia
| | - Danuta S Kalinowski
- Molecular Pharmacology and Pathology Program, Department of Pathology and Bosch Institute, University of Sydney, Sydney, New South Wales, 2006, Australia
| | - Mahendiran Dharmasivam
- Molecular Pharmacology and Pathology Program, Department of Pathology and Bosch Institute, University of Sydney, Sydney, New South Wales, 2006, Australia
| | - Nady Braidy
- Centre for Healthy Brain Ageing, University of New South Wales, Kensington, New South Wales, 2052, Australia
| | - Des R Richardson
- Molecular Pharmacology and Pathology Program, Department of Pathology and Bosch Institute, University of Sydney, Sydney, New South Wales, 2006, Australia; Department of Pathology and Biological Responses, Nagoya University Graduate School of Medicine, Nagoya, 466-8550, Japan.
| | - Michael L H Huang
- Molecular Pharmacology and Pathology Program, Department of Pathology and Bosch Institute, University of Sydney, Sydney, New South Wales, 2006, Australia.
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8
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O'Dea KP, Tan YY, Shah S, V Patel B, C Tatham K, Wilson MR, Soni S, Takata M. Monocytes mediate homing of circulating microvesicles to the pulmonary vasculature during low-grade systemic inflammation. J Extracell Vesicles 2020; 9:1706708. [PMID: 32002170 PMCID: PMC6968433 DOI: 10.1080/20013078.2019.1706708] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Revised: 12/07/2019] [Accepted: 12/13/2019] [Indexed: 01/08/2023] Open
Abstract
Microvesicles (MVs), a plasma membrane-derived subclass of extracellular vesicles, are produced and released into the circulation during systemic inflammation, yet little is known of cell/tissue-specific uptake of MVs under these conditions. We hypothesized that monocytes contribute to uptake of circulating MVs and that their increased margination to the pulmonary circulation and functional priming during systemic inflammation produces substantive changes to the systemic MV homing profile. Cellular uptake of i.v.-injected, fluorescently labelled MVs (J774.1 macrophage-derived) in vivo was quantified by flow cytometry in vascular cell populations of the lungs, liver and spleen of C57BL6 mice. Under normal conditions, both Ly6Chigh and Ly6Clow monocytes contributed to MV uptake but liver Kupffer cells were the dominant target cell population. Following induction of sub-clinical endotoxemia with low-dose i.v. LPS, MV uptake by lung-marginated Ly6Chigh monocytes increased markedly, both at the individual cell level (~2.5-fold) and through substantive expansion of their numbers (~8-fold), whereas uptake by splenic macrophages was unchanged and uptake by Kupffer cells actually decreased (~50%). Further analysis of MV uptake within the pulmonary vasculature using a combined model approach of in vivo macrophage depletion, ex vivo isolated perfused lungs and in vitro lung perfusate cell-based assays, indicated that Ly6Chigh monocytes possess a high MV uptake capacity (equivalent to Kupffer cells), that is enhanced directly by endotoxemia and ablated in the presence of phosphatidylserine (PS)-enriched liposomes and β3 integrin receptor blocking peptide. Accordingly, i.v.-injected PS-enriched liposomes underwent a redistribution of cellular uptake during endotoxemia similar to MVs, with enhanced uptake by Ly6Chigh monocytes and reduced uptake by Kupffer cells. These findings indicate that monocytes, particularly lung-marginated Ly6Chigh subset monocytes, become a dominant target cell population for MVs during systemic inflammation, with significant implications for the function and targeting of endogenous and therapeutically administered MVs, lending novel insights into the pathophysiology of pulmonary vascular inflammation.
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Affiliation(s)
- Kieran P O'Dea
- Section of Anaesthetics, Pain Medicine & Intensive Care, Imperial College London, Chelsea & Westminster Hospital, London, UK
| | - Ying Ying Tan
- Section of Anaesthetics, Pain Medicine & Intensive Care, Imperial College London, Chelsea & Westminster Hospital, London, UK
| | - Sneh Shah
- Section of Anaesthetics, Pain Medicine & Intensive Care, Imperial College London, Chelsea & Westminster Hospital, London, UK
| | - Brijesh V Patel
- Section of Anaesthetics, Pain Medicine & Intensive Care, Imperial College London, Chelsea & Westminster Hospital, London, UK
| | - Kate C Tatham
- Section of Anaesthetics, Pain Medicine & Intensive Care, Imperial College London, Chelsea & Westminster Hospital, London, UK
| | - Mike R Wilson
- Section of Anaesthetics, Pain Medicine & Intensive Care, Imperial College London, Chelsea & Westminster Hospital, London, UK
| | - Sanooj Soni
- Section of Anaesthetics, Pain Medicine & Intensive Care, Imperial College London, Chelsea & Westminster Hospital, London, UK
| | - Masao Takata
- Section of Anaesthetics, Pain Medicine & Intensive Care, Imperial College London, Chelsea & Westminster Hospital, London, UK
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9
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Huang L, Xu C, Xu P, Qin Y, Chen M, Feng Q, Pan J, Cheng Q, Liang F, Wen X, Wang Y, Shi Y, Cheng Y. Intelligent Photosensitive Mesenchymal Stem Cells and Cell-Derived Microvesicles for Photothermal Therapy of Prostate Cancer. Nanotheranostics 2018; 3:41-53. [PMID: 30662822 PMCID: PMC6328305 DOI: 10.7150/ntno.28450] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Accepted: 10/08/2018] [Indexed: 01/01/2023] Open
Abstract
Targeted delivery of nanomedicines into the tumor site and improving the intratumoral distribution remain challenging in cancer treatment. Here, we report an effective transportation system utilizing both of mesenchymal stem cells (MSCs) and their secreted microvesicles containing assembled gold nanostars (GNS) for targeted photothermal therapy of prostate cancer. The stem cells act as a cell carrier to actively load and assemble GNS into the lysosomes. Accumulation of GNS in the lysosomes facilitates the close interaction of nanoparticles, which could result in a 20 nm red-shift of surface plasmon resonance of GNS with a broad absorption in the near infrared region. Moreover, the MSCs can behave like an engineering factory to pack and release the GNS clusters into microvesicles. The secretion of GNS can be stimulated via light irradiation, providing an external trigger-assisted approach to encapsulate nanoparticles into cell derived microvesicles. In vivo studies demonstrate that GNS-loaded MSCs have an extensive intratumoral distribution, as monitored via photoacoustic imaging, and efficient antitumor effect under light exposure in a prostate-cancer subcutaneous model by intratumoral and intravenous injection. Our work presents a light-responsive transportation approach for GNS in combination of MSCs and their extracellular microvesicles and holds the promise as an effective strategy for targeted cancer therapy including prostate cancer.
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Affiliation(s)
- Liqun Huang
- Department of Urology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, 200120, China
| | - Chang Xu
- Shanghai East Hospital; The Institute for Biomedical Engineering & Nano Science, Tongji University School of Medicine, Shanghai, 200120, China
| | - Peng Xu
- The State Key Laboratory of Refractories and Metallurgy, School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, China
| | - Yu Qin
- Institute of Acoustics, Tongji University, Siping Road 1239, Shanghai 200092, China
| | - Mengwei Chen
- Shanghai East Hospital; The Institute for Biomedical Engineering & Nano Science, Tongji University School of Medicine, Shanghai, 200120, China
| | - Qishuai Feng
- Shanghai East Hospital; The Institute for Biomedical Engineering & Nano Science, Tongji University School of Medicine, Shanghai, 200120, China
| | - Jing Pan
- Institute of Acoustics, Tongji University, Siping Road 1239, Shanghai 200092, China
| | - Qian Cheng
- Institute of Acoustics, Tongji University, Siping Road 1239, Shanghai 200092, China
| | - Feng Liang
- The State Key Laboratory of Refractories and Metallurgy, School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, China
| | - Xiaofei Wen
- Department of Urology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, 200120, China
| | - Ying Wang
- Key Laboratory of Stem Cell Biology, Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences/Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yufang Shi
- Key Laboratory of Stem Cell Biology, Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences/Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yu Cheng
- Shanghai East Hospital; The Institute for Biomedical Engineering & Nano Science, Tongji University School of Medicine, Shanghai, 200120, China
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10
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Piffoux M, Silva AKA, Wilhelm C, Gazeau F, Tareste D. Modification of Extracellular Vesicles by Fusion with Liposomes for the Design of Personalized Biogenic Drug Delivery Systems. ACS NANO 2018; 12:6830-6842. [PMID: 29975503 DOI: 10.1021/acsnano.8b02053] [Citation(s) in RCA: 244] [Impact Index Per Article: 40.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Extracellular vesicles (EVs) are recognized as nature's own carriers to transport macromolecules throughout the body. Hijacking this endogenous communication system represents an attractive strategy for advanced drug delivery. However, efficient and reproducible loading of EVs with therapeutic or imaging agents still represents a bottleneck for their use as a drug delivery system. Here, we developed a method for modifying cell-derived EVs through their fusion with liposomes containing both membrane and soluble cargoes. The fusion of EVs with functionalized liposomes was triggered by polyethylene glycol (PEG) to create smart biosynthetic hybrid vectors. This versatile method proved to be efficient to enrich EVs with exogenous lipophilic or hydrophilic compounds, while preserving their intrinsic content and biological properties. Hybrid EVs improved cellular delivery efficiency of a chemotherapeutic compound by a factor of 3-4, as compared to the free drug or the drug-loaded liposome precursor. On one side, this method allows the biocamouflage of liposomes by enriching their lipid bilayer and inner compartment with biogenic molecules. On the other side, the proposed fusion strategy enables efficient EV loading, and the pharmaceutical development of EVs with adaptable activity and drug delivery property.
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Affiliation(s)
- Max Piffoux
- Laboratoire Matière et Systèmes Complexes , Université Paris Diderot, Sorbonne Paris Cité , CNRS UMR 7057, F-75013 Paris , France
| | - Amanda K A Silva
- Laboratoire Matière et Systèmes Complexes , Université Paris Diderot, Sorbonne Paris Cité , CNRS UMR 7057, F-75013 Paris , France
| | - Claire Wilhelm
- Laboratoire Matière et Systèmes Complexes , Université Paris Diderot, Sorbonne Paris Cité , CNRS UMR 7057, F-75013 Paris , France
| | - Florence Gazeau
- Laboratoire Matière et Systèmes Complexes , Université Paris Diderot, Sorbonne Paris Cité , CNRS UMR 7057, F-75013 Paris , France
| | - David Tareste
- Institut Jacques Monod , Université Paris Diderot, Sorbonne Paris Cité , CNRS UMR 7592, F-75013 Paris , France
- Centre de Psychiatrie et Neurosciences , Université Paris Descartes, Sorbonne Paris Cité , INSERM UMR 894, F-75014 Paris , France
- Membrane Traffic in Health and Disease , Université Paris Descartes, Sorbonne Paris Cité , INSERM ERL U950, F-75014 Paris , France
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11
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Mulens-Arias V, Nicolás-Boluda A, Silva AKA, Gazeau F. Theranostic Iron Oxide Nanoparticle Cargo Defines Extracellular Vesicle-Dependent Modulation of Macrophage Activation and Migratory Behavior. ACTA ACUST UNITED AC 2018. [DOI: 10.1002/adbi.201800079] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Vladimir Mulens-Arias
- Laboratoire Matière et Systèmes Complexes; UMR7057; CNRS and Université Paris Diderot; 10 Rue Alice Domon et Léonie Duquet 75205 Paris Cedex 13 France
| | - Alba Nicolás-Boluda
- Laboratoire Matière et Systèmes Complexes; UMR7057; CNRS and Université Paris Diderot; 10 Rue Alice Domon et Léonie Duquet 75205 Paris Cedex 13 France
| | - Amanda K Andriola Silva
- Laboratoire Matière et Systèmes Complexes; UMR7057; CNRS and Université Paris Diderot; 10 Rue Alice Domon et Léonie Duquet 75205 Paris Cedex 13 France
| | - Florence Gazeau
- Laboratoire Matière et Systèmes Complexes; UMR7057; CNRS and Université Paris Diderot; 10 Rue Alice Domon et Léonie Duquet 75205 Paris Cedex 13 France
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12
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Bern MM. Extracellular vesicles: how they interact with endothelium, potentially contributing to metastatic cancer cell implants. Clin Transl Med 2017; 6:33. [PMID: 28933058 PMCID: PMC5607152 DOI: 10.1186/s40169-017-0165-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Accepted: 08/13/2017] [Indexed: 02/07/2023] Open
Abstract
Extracellular vesicles (EV) are blebs of cellular membranes, which entrap small portions of subjacent cytosol. They are released from a variety of cells, circulate in the blood for an unknown length of time and come to rest on endothelial surfaces. They contribute to an array of physiologic pathways, the complexity of which is still being investigated. They contribute to metastatic malignant cell implants and tumor-related angiogenesis, possibly abetted by the tissue factor that they carry. It is thought that the adherence of the EV to endothelium is dependent upon a combination of their P-selectin glycoprotein ligand-1 and exposed phosphatidylserine, the latter of which is normally hidden on the inner bilayer of the intact cellular membrane. This manuscript reviews what is known about EV origins, their clearance from the circulation and how they contribute to malignant cell implants upon endothelium surfaces and subsequent tumor growth.
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Affiliation(s)
- Murray M Bern
- University of New Mexico Comprehensive Cancer Center, 1201 Camino de Salud, Albuquerque, NM, 87131, USA.
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13
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Jansen F, Nickenig G, Werner N. Extracellular Vesicles in Cardiovascular Disease: Potential Applications in Diagnosis, Prognosis, and Epidemiology. Circ Res 2017; 120:1649-1657. [PMID: 28495995 DOI: 10.1161/circresaha.117.310752] [Citation(s) in RCA: 171] [Impact Index Per Article: 24.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Extracellular vesicles originate from diverse subcellular compartments and are released in the extracellular space. By transferring their cargoes into target cells and tissues, they now emerge as novel regulators of intercellular communication between adjacent and remote cells. Because vesicle composition and biological content are specific signatures of cellular activation and injury, their potential as diagnostic and prognostic biomarkers has raised significant interest in cardiovascular diseases. Characterization of circulating vesicles- or nonvesicles-bound nucleic acids represents a valuable tool for diagnosing and monitoring cardiovascular diseases, recently referred to as a liquid biopsy. Circulating extracellular vesicles offer a noninvasive and almost continuous access to circulating information on the disease state in epidemiological investigations. Finally, genetic engineering and cell-specific application of extracellular vesicles could display a novel therapeutic option for the treatment of cardiovascular diseases. In this review, we summarize the current knowledge about extracellular vesicles as diagnostic and prognostic biomarkers, as well as their potential applications for longitudinal epidemiological studies in cardiovascular diseases.
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Affiliation(s)
- Felix Jansen
- From the Department of Internal Medicine II, Rheinische Friedrich-Wilhelms University, Bonn, Germany
| | - Georg Nickenig
- From the Department of Internal Medicine II, Rheinische Friedrich-Wilhelms University, Bonn, Germany
| | - Nikos Werner
- From the Department of Internal Medicine II, Rheinische Friedrich-Wilhelms University, Bonn, Germany.
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14
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Ridger VC, Boulanger CM, Angelillo-Scherrer A, Badimon L, Blanc-Brude O, Bochaton-Piallat ML, Boilard E, Buzas EI, Caporali A, Dignat-George F, Evans PC, Lacroix R, Lutgens E, Ketelhuth DFJ, Nieuwland R, Toti F, Tunon J, Weber C, Hoefer IE. Microvesicles in vascular homeostasis and diseases. Position Paper of the European Society of Cardiology (ESC) Working Group on Atherosclerosis and Vascular Biology. Thromb Haemost 2017; 117:1296-1316. [PMID: 28569921 DOI: 10.1160/th16-12-0943] [Citation(s) in RCA: 167] [Impact Index Per Article: 23.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Accepted: 04/27/2017] [Indexed: 12/15/2022]
Abstract
Microvesicles are members of the family of extracellular vesicles shed from the plasma membrane of activated or apoptotic cells. Microvesicles were initially characterised by their pro-coagulant activity and described as "microparticles". There is mounting evidence revealing a role for microvesicles in intercellular communication, with particular relevance to hemostasis and vascular biology. Coupled with this, the potential of microvesicles as meaningful biomarkers is under intense investigation. This Position Paper will summarise the current knowledge on the mechanisms of formation and composition of microvesicles of endothelial, platelet, red blood cell and leukocyte origin. This paper will also review and discuss the different methods used for their analysis and quantification, will underline the potential biological roles of these vesicles with respect to vascular homeostasis and thrombosis and define important themes for future research.
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Affiliation(s)
| | - Chantal M Boulanger
- Victoria Ridger, PhD, Department of Infection, Immunity and Cardiovascular Disease, Faculty of Medicine, Dentistry and Health, University of Sheffield, Sheffield, UK, E-mail: , or, Chantal M. Boulanger, PhD, INSERM UMR-S 970, Paris Cardiovascular Research Center - PARCC, 56 rue Leblanc, 75015 Paris, France, E-mail:
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15
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Piffoux M, Silva AKA, Lugagne JB, Hersen P, Wilhelm C, Gazeau F. Extracellular Vesicle Production Loaded with Nanoparticles and Drugs in a Trade-off between Loading, Yield and Purity: Towards a Personalized Drug Delivery System. ACTA ACUST UNITED AC 2017; 1:e1700044. [DOI: 10.1002/adbi.201700044] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Indexed: 12/17/2022]
Affiliation(s)
- Max Piffoux
- Laboratoire Matière et Systèmes Complexes; UMR 7057; CNRS and Université Paris Diderot; 10 rue Alice Domon et Léonie Duquet 75205 Paris Cedex 13 France
| | - Amanda K. A. Silva
- Laboratoire Matière et Systèmes Complexes; UMR 7057; CNRS and Université Paris Diderot; 10 rue Alice Domon et Léonie Duquet 75205 Paris Cedex 13 France
| | - Jean-Baptiste Lugagne
- Laboratoire Matière et Systèmes Complexes; UMR 7057; CNRS and Université Paris Diderot; 10 rue Alice Domon et Léonie Duquet 75205 Paris Cedex 13 France
| | - Pascal Hersen
- Laboratoire Matière et Systèmes Complexes; UMR 7057; CNRS and Université Paris Diderot; 10 rue Alice Domon et Léonie Duquet 75205 Paris Cedex 13 France
| | - Claire Wilhelm
- Laboratoire Matière et Systèmes Complexes; UMR 7057; CNRS and Université Paris Diderot; 10 rue Alice Domon et Léonie Duquet 75205 Paris Cedex 13 France
| | - Florence Gazeau
- Laboratoire Matière et Systèmes Complexes; UMR 7057; CNRS and Université Paris Diderot; 10 rue Alice Domon et Léonie Duquet 75205 Paris Cedex 13 France
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Abstract
Membrane vesicles released in the extracellular space are composed of a lipid bilayer enclosing soluble cytosolic material and nuclear components. Extracellular vesicles include apoptotic bodies, exosomes, and microvesicles (also known previously as microparticles). Originating from different subcellular compartments, the role of extracellular vesicles as regulators of transfer of biological information, acting locally and remotely, is now acknowledged. Circulating vesicles released from platelets, erythrocytes, leukocytes, and endothelial cells contain potential valuable biological information for biomarker discovery in primary and secondary prevention of coronary artery disease. Extracellular vesicles also accumulate in human atherosclerotic plaques, where they affect major biological pathways, including inflammation, proliferation, thrombosis, calcification, and vasoactive responses. Extracellular vesicles also recapitulate the beneficial effect of stem cells to treat cardiac consequences of acute myocardial infarction, and now emerge as an attractive alternative to cell therapy, opening new avenues to vectorize biological information to target tissues. Although interest in microvesicles in the cardiovascular field emerged about 2 decades ago, that for extracellular vesicles, in particular exosomes, started to unfold a decade ago, opening new research and therapeutic avenues. This Review summarizes current knowledge on the role of extracellular vesicles in coronary artery disease, and their emerging potential as biomarkers and therapeutic agents.
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Sinning JM, Jansen F, Hammerstingl C, Meier A, Losch J, Rohwer K, Schmitz T, Paul K, Sedaghat A, Schueler R, Vasa-Nicotera M, Müller C, Nickenig G, Werner N. Circulating Microparticles Decrease After Cardiac Stress in Patients With Significant Coronary Artery Stenosis. Clin Cardiol 2016; 39:570-577. [PMID: 27410166 DOI: 10.1002/clc.22566] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2016] [Revised: 05/28/2016] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Cardiac stress leads to a dynamic increase of circulating microparticles (MPs) in healthy individuals that is diminished in individuals with vascular disease. The impact of coronary ischemia on circulating MP level is unknown. This study investigates the kinetics of circulating MPs during cardiac stress in patients with coronary artery stenosis. HYPOTHESIS Patients with significant coronary stenosis show altered circulating MP levels after cardiac stress. METHODS Eighty patients with stable coronary artery disease underwent dobutamine stress echocardiography (DSE) on the day before coronary angiography. Before, immediately after, at 4 hours, and at 24 hours after DSE, blood was drawn to determine CD144+ endothelial microparticles (EMPs), CD14+ CD16+ monocyte-derived microparticles (MMPs), and CD31+ CD42b+ platelet microparticles. A significant stenosis was defined as stenosis diameter ≥70% in a major native epicardial coronary artery with a diameter of ≥2.5 mm. RESULTS Significant coronary artery stenoses were found in 41 patients. In these patients, CD144+ -EMP and CD14+ CD16+ -MMP concentrations decreased immediately after DSE. Stimulation of target endothelial cells with sera from patients with significant coronary artery stenoses significantly augmented endothelial capacity to take up EMPs, but not MMPs, in vitro. Serum-induced enhancement of endothelial phosphatidylserine receptor expression was found as a potential mechanism of increased endothelial EMP uptake and subsequently reduced circulating EMP levels after cardiac stress. CONCLUSIONS Cardiac ischemia leads to reduced circulating MP levels under cardiac stress. Changes of endothelial MP uptake capacities could be one possible mechanism.
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Affiliation(s)
- Jan-Malte Sinning
- Department of Medicine II, Heart Center Bonn, University Hospital Bonn, Bonn, Germany.
| | - Felix Jansen
- Department of Medicine II, Heart Center Bonn, University Hospital Bonn, Bonn, Germany
| | | | - Arne Meier
- Department of Medicine II, Heart Center Bonn, University Hospital Bonn, Bonn, Germany
| | - Jan Losch
- Department of Medicine II, Heart Center Bonn, University Hospital Bonn, Bonn, Germany
| | - Katharina Rohwer
- Department of Medicine II, Heart Center Bonn, University Hospital Bonn, Bonn, Germany
| | - Theresa Schmitz
- Department of Medicine II, Heart Center Bonn, University Hospital Bonn, Bonn, Germany
| | - Kathrin Paul
- Department of Medicine II, Heart Center Bonn, University Hospital Bonn, Bonn, Germany
| | - Alexander Sedaghat
- Department of Medicine II, Heart Center Bonn, University Hospital Bonn, Bonn, Germany
| | - Robert Schueler
- Department of Medicine II, Heart Center Bonn, University Hospital Bonn, Bonn, Germany
| | - Mariuca Vasa-Nicotera
- Department of Medicine II, Heart Center Bonn, University Hospital Bonn, Bonn, Germany
| | - Cornelius Müller
- Department of Medicine II, Heart Center Bonn, University Hospital Bonn, Bonn, Germany
| | - Georg Nickenig
- Department of Medicine II, Heart Center Bonn, University Hospital Bonn, Bonn, Germany
| | - Nikos Werner
- Department of Medicine II, Heart Center Bonn, University Hospital Bonn, Bonn, Germany
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18
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Dynamic microvesicle release and clearance within the cardiovascular system: triggers and mechanisms. Clin Sci (Lond) 2015; 129:915-31. [PMID: 26359252 DOI: 10.1042/cs20140623] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Interest in cell-derived microvesicles (or microparticles) within cardiovascular diagnostics and therapeutics is rapidly growing. Microvesicles are often measured in the circulation at a single time point. However, it is becoming clear that microvesicle levels both increase and decrease rapidly in response to certain stimuli such as hypoxia, acute cardiac stress, shear stress, hypertriglyceridaemia and inflammation. Consequently, the levels of circulating microvesicles will reflect the balance between dynamic mechanisms for release and clearance. The present review describes the range of triggers currently known to lead to microvesicle release from different cellular origins into the circulation. Specifically, the published data are used to summarize the dynamic impact of these triggers on the degree and rate of microvesicle release. Secondly, a summary of the current understanding of microvesicle clearance via different cellular systems, including the endothelial cell and macrophage, is presented, based on reported studies of clearance in experimental models and clinical scenarios, such as transfusion or cardiac stress. Together, this information can be used to provide insights into potential underlying biological mechanisms that might explain the increases or decreases in circulating microvesicle levels that have been reported and help to design future clinical studies.
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Milbank E, Martinez MC, Andriantsitohaina R. Extracellular vesicles: Pharmacological modulators of the peripheral and central signals governing obesity. Pharmacol Ther 2015; 157:65-83. [PMID: 26617220 DOI: 10.1016/j.pharmthera.2015.11.002] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Obesity and its metabolic resultant dysfunctions such as insulin resistance, hyperglycemia, dyslipidemia and hypertension, grouped as the "metabolic syndrome", are chronic inflammatory disorders that represent one of the most severe epidemic health problems. The imbalance between energy intake and expenditure, leading to an excess of body fat and an increase of cardiovascular and diabetes risks, is regulated by the interaction between central nervous system (CNS) and peripheral signals in order to regulate behavior and finally, the metabolism of peripheral organs. At present, pharmacological treatment of obesity comprises actions in both CNS and peripheral organs. In the last decades, the extracellular vesicles have emerged as participants in many pathophysiological regulation processes. Whether used as biomarkers, targets or even tools, extracellular vesicles provided some promising effects in the treatment of a large variety of diseases. Extracellular vesicles are released by cells from the plasma membrane (microvesicles) or from multivesicular bodies (exosomes) and contain lipids, proteins and nucleic acids, such as DNA, protein coding, and non-coding RNAs. Owing to their composition, extracellular vesicles can (i) activate receptors at the target cell and then, the subsequent intracellular pathway associated to the specific receptor; (ii) transfer molecules to the target cells and thereby change their phenotype and (iii) be used as shuttle of drugs and, thus, to carry specific molecules towards specific cells. Herein, we review the impact of extracellular vesicles in modulating the central and peripheral signals governing obesity.
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Affiliation(s)
- Edward Milbank
- INSERM UMR1063, Stress Oxydant et Pathologies Métaboliques, Université d'Angers, Angers, France
| | - M Carmen Martinez
- INSERM UMR1063, Stress Oxydant et Pathologies Métaboliques, Université d'Angers, Angers, France
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Breast Cancer-Derived Extracellular Vesicles: Characterization and Contribution to the Metastatic Phenotype. BIOMED RESEARCH INTERNATIONAL 2015; 2015:634865. [PMID: 26601108 PMCID: PMC4639645 DOI: 10.1155/2015/634865] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/18/2015] [Revised: 09/24/2015] [Accepted: 10/04/2015] [Indexed: 12/21/2022]
Abstract
The study of extracellular vesicles (EVs) in cancer progression is a complex and rapidly evolving field. Whole categories of cellular interactions in cancer which were originally presumed to be due solely to soluble secreted molecules have now evolved to include membrane-enclosed extracellular vesicles (EVs), which include both exosomes and shed microvesicles (MVs), and can contain many of the same molecules as those secreted in soluble form but many different molecules as well. EVs released by cancer cells can transfer mRNA, miRNA, and proteins to different recipient cells within the tumor microenvironment, in both an autocrine and paracrine manner, causing a significant impact on signaling pathways, mRNA transcription, and protein expression. The transfer of EVs to target cells, in turn, supports cancer growth, immunosuppression, and metastasis formation. This review focuses exclusively on breast cancer EVs with an emphasis on breast cancer-derived exosomes, keeping in mind that breast cancer-derived EVs share some common physical properties with EVs of other cancers.
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21
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Al Faraj A, Shaik AP, Shaik AS. Effect of surface coating on the biocompatibility and in vivo MRI detection of iron oxide nanoparticles after intrapulmonary administration. Nanotoxicology 2015; 9:825-34. [PMID: 26356541 DOI: 10.3109/17435390.2014.980450] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Superparamagnetic iron oxide nanoparticles (SPIONs) have attracted special attention as novel nanoprobes capable of improving both the therapy and diagnosis of lung diseases. For safe prospective clinical applications, their biocompatibility has to be assessed after intrapulmonary administration. This study was therefore conducted to understand the biological impact of SPIONs and their further surface-functionalization with polyethylene glycol (PEG) having either negative (i.e. carboxyl) or positive (i.e. amine) terminal in a 1-month longitudinal study following acute and sub-acute exposures. Noninvasive free-breathing MR imaging protocols were first optimized to validate SPIONs detection in the lung and investigate possible subsequent systemic translocation to abdominal organs. Pulmonary Magnetic Resonance Imaging (MRI) allowed successful in vivo detection of SPIONs in the lung using ultra-short echo time sequence. Following high-dose lung administration, MR imaging performed on abdominal organs detected transient accumulation of SPIONs in the liver. Iron quantification using Inductive coupled plasma - Mass mass spectroscopy (ICP-MS) confirmed MRI readouts. Oxidative stress induction and genotoxicity were then conducted to evaluate the biocompatibility of SPIONs with their different formulations in a mouse model. A significant increase in lipid peroxidation was observed in both acute and sub-acute sets and found to regress in a time-dependent manner. PEG functionalized SPIONs revealed a lower effect with no difference between both terminal modifications. Genotoxicity assessments revealed an increase in DNA damage and gene expression of CCL-17 and IL-10 biomarkers following SPIONs administration, which was significantly higher than surface-modified nanoparticles and decreased in a time-dependent manner. However, SPIONs with carboxyl terminal showed a slightly prominent effect compared to amine modification.
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Affiliation(s)
- Achraf Al Faraj
- a College of Applied Medical Sciences, King Saud University , Riyadh , Saudi Arabia
| | - Abjal Pasha Shaik
- b Department of Clinical Lab Sciences , College of Applied Medical Sciences, King Saud University , Riyadh , Saudi Arabia , and
| | - Asma Sultana Shaik
- a College of Applied Medical Sciences, King Saud University , Riyadh , Saudi Arabia .,c Prince Naif Center for Immunology Research, College of Medicine, King Saud University , Riyadh , Saudi Arabia
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22
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Hodowanec AC, Lee RD, Brady KE, Gao W, Kincaid S, Plants J, Bahk M, Mackman N, Landay AL, Huhn GD. A matched cross-sectional study of the association between circulating tissue factor activity, immune activation and advanced liver fibrosis in hepatitis C infection. BMC Infect Dis 2015; 15:190. [PMID: 25884329 PMCID: PMC4411753 DOI: 10.1186/s12879-015-0920-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2014] [Accepted: 03/31/2015] [Indexed: 02/07/2023] Open
Abstract
Background Tissue factor (TF) is a protein that mediates the initiation of the coagulation cascade. TF expression is increased in patients with poorly-controlled HIV, and may be associated with increased immune activation that leads to cardiovascular morbidity. The role of TF in immune activation in liver disease in hepatitis C virus (HCV)-monoinfection and HIV/HCV-coinfection has not been explored. Methods Fifty-nine patients were stratified: A) HIV-monoinfection (N = 15), B) HCV-monoinfection with chronic hepatitis C (CHC) (N = 15), C) HIV/HCV-coinfection with CHC (N = 14), and D) HIV/HCV-seropositive with cleared-HCV (N = 15). All HIV+ patients had undetectable HIV viremia. Whole blood was collected for CD4/CD8 immune activation markers by flow cytometry and plasma was assayed for microparticle TF (MPTF) activity. Subjects underwent transient elastography (TE) to stage liver fibrosis. Undetectable versus detectable MPTF was compared across strata using Fisher's Exact test. Results MPTF activity was more frequently detected among patients with HCV-monoinfection (40%), compared to HIV-monoinfection and HIV/HCV-seropositive with cleared HCV (7%) and HIV/HCV-coinfection with CHC (14%) (p = 0.02). Mean TE-derived liver stiffness score in kPa was higher in patients with detectable MPTF (12.4 ± 8.5) than those with undetectable MPTF (6.4 ± 3.0) (p = 0.01). Mean CD4 + HLADR+ and CD4 + CD38-HLADR+ expression were higher in those with detectable MPTF (44 ± 9.8% and 38 ± 8.7%, respectively) than those with undetectable MPTF (36 ± 11% and 31 ± 10.4% respectively) (p = 0.05 and 0.04 respectively). Conclusions HCV-monoinfection and HIV/HCV-coinfection with CHC were associated with MPTF activity. MPTF activity is also associated with advanced liver fibrosis and with CD4 + HLADR+ immune activation.
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Affiliation(s)
- Aimee C Hodowanec
- Ruth M. Rothstein CORE Center, 2020 W. Harrison St, Chicago, IL, 60612, USA. .,Rush University Medical Center, Section of Infectious Diseases, Chicago, IL, USA.
| | - Rebecca D Lee
- University of North Carolina at Chapel Hill, Division of Hematology and Oncology, Chapel Hill, NC, USA.
| | - Kirsten E Brady
- Rush University Medical Center, Department of Immunology and Microbiology, Chicago, IL, USA.
| | - Weihua Gao
- Center for Clinical and Translational Sciences, University of Illinois at Chicago, Chicago, IL, USA.
| | - Stacey Kincaid
- Ruth M. Rothstein CORE Center, 2020 W. Harrison St, Chicago, IL, 60612, USA.
| | - Jill Plants
- Rush University Medical Center, Department of Immunology and Microbiology, Chicago, IL, USA.
| | - Mieoak Bahk
- Ruth M. Rothstein CORE Center, 2020 W. Harrison St, Chicago, IL, 60612, USA.
| | - Nigel Mackman
- University of North Carolina at Chapel Hill, Division of Hematology and Oncology, Chapel Hill, NC, USA.
| | - Alan L Landay
- Rush University Medical Center, Department of Immunology and Microbiology, Chicago, IL, USA.
| | - Gregory D Huhn
- Ruth M. Rothstein CORE Center, 2020 W. Harrison St, Chicago, IL, 60612, USA. .,Rush University Medical Center, Section of Infectious Diseases, Chicago, IL, USA.
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Empana JP, Boulanger CM, Tafflet M, Renard JM, Leroyer AS, Varenne O, Prugger C, Silvain J, Tedgui A, Cariou A, Montalescot G, Jouven X, Spaulding C. Microparticles and sudden cardiac death due to coronary occlusion. The TIDE (Thrombus and Inflammation in sudden DEath) study. EUROPEAN HEART JOURNAL-ACUTE CARDIOVASCULAR CARE 2014; 4:28-36. [PMID: 24912925 DOI: 10.1177/2048872614538404] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
AIMS The pattern of coronary occlusion might contribute to the onset of ventricular arrhythmia and sudden cardiac death (SCD). We hypothesized that the concentrations of microparticles might differ between SCD and ST-elevation myocardial infarction (STEMI) patients without rhythmic disturbances. METHODS AND RESULTS The study sample includes consecutive patients hospitalized in two French tertiary centres between 2006 and 2011 for SCD with angiographically-proven acute coronary occlusion (n=23), for STEMI (n=61) and for a planned percutaneous coronary angioplasty (PCI) (n=35, controls). During PCI blood was collected in the arch of aorta (systemic blood) before and after the procedure and in the culprit coronary lesion with an aspiration catheter. Microparticles were analysed by flow cytometry in a blinded manner to quantify endothelial (CD144+), platelet (CD41+), leucocyte (CD11a+) and erythrocyte (CD235a+) derived microparticles. After multivariate analysis, intracoronary concentrations of endothelial-derived microparticles were significantly higher in SCD than in STEMI patients (129 (74-185) vs. 50 (21-118) nb/µl; p < 0.01). Intracoronary and systemic blood concentrations of platelet-derived microparticles were not different between SCD and controls, suggesting limited impact of cardiac massage and electric defibrillation in microparticle concentrations. CONCLUSION The higher concentrations of endothelial-derived microparticles in SCD due to acute coronary occlusion compared with STEMI without rhythmic disturbances suggests different patterns of acute coronary occlusion.
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Affiliation(s)
- Jean-Philippe Empana
- Paris Cardiovascular Research Centre (PARCC), INSERM UMRS 970, Sorbonne Paris Cité, Paris France Paris Sudden Death Expertise Centre, France
| | - Chantal M Boulanger
- Paris Cardiovascular Research Centre (PARCC), INSERM UMRS 970, Sorbonne Paris Cité, Paris France
| | - Muriel Tafflet
- Paris Cardiovascular Research Centre (PARCC), INSERM UMRS 970, Sorbonne Paris Cité, Paris France Paris Sudden Death Expertise Centre, France
| | - Jean M Renard
- Paris Cardiovascular Research Centre (PARCC), INSERM UMRS 970, Sorbonne Paris Cité, Paris France
| | - Aurelie S Leroyer
- Paris Cardiovascular Research Centre (PARCC), INSERM UMRS 970, Sorbonne Paris Cité, Paris France
| | - Olivier Varenne
- Assistance Publique des Hôpitaux de Paris (APHP), Cochin University Hospital, Department of Intensive Cardiology, France
| | - Christof Prugger
- Paris Cardiovascular Research Centre (PARCC), INSERM UMRS 970, Sorbonne Paris Cité, Paris France Paris Sudden Death Expertise Centre, France
| | - Johanne Silvain
- Assistance Publique des Hôpitaux de Paris (APHP), Institut de Cardiologie, La Pitié Salpetriere University Hospital, Department of Intensive Cardiology; Paris 6 University, France
| | - Alain Tedgui
- Paris Cardiovascular Research Centre (PARCC), INSERM UMRS 970, Sorbonne Paris Cité, Paris France
| | - Alain Cariou
- Paris Cardiovascular Research Centre (PARCC), INSERM UMRS 970, Sorbonne Paris Cité, Paris France Paris Sudden Death Expertise Centre, France Assistance Publique des Hôpitaux de Paris (APHP), Cochin University Hospital, Department of Intensive Care, France
| | - Gilles Montalescot
- Assistance Publique des Hôpitaux de Paris (APHP), Institut de Cardiologie, La Pitié Salpetriere University Hospital, Department of Intensive Cardiology; Paris 6 University, France
| | - Xavier Jouven
- Paris Cardiovascular Research Centre (PARCC), INSERM UMRS 970, Sorbonne Paris Cité, Paris France Paris Sudden Death Expertise Centre, France Assistance Publique des Hôpitaux de Paris (APHP), Georges Pompidou European Hospital, Department of Cardiology, France
| | - Christian Spaulding
- Paris Cardiovascular Research Centre (PARCC), INSERM UMRS 970, Sorbonne Paris Cité, Paris France Paris Sudden Death Expertise Centre, France Assistance Publique des Hôpitaux de Paris (APHP), Georges Pompidou European Hospital, Department of Cardiology, France
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Lemoinne S, Thabut D, Housset C, Moreau R, Valla D, Boulanger CM, Rautou PE. The emerging roles of microvesicles in liver diseases. Nat Rev Gastroenterol Hepatol 2014; 11:350-61. [PMID: 24492276 DOI: 10.1038/nrgastro.2014.7] [Citation(s) in RCA: 129] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Microvesicles (MVs) are extracellular vesicles released by virtually all cells, under both physiological and pathological conditions. They contain lipids, proteins, RNAs and microRNAs and act as vectors of information that regulate the function of target cells. This Review provides an overview of the studies assessing circulating MV levels in patients with liver diseases, together with an insight into the mechanisms that could account for these changes. We also present a detailed analysis of the implication of MVs in key processes of liver diseases. MVs have a dual role in fibrosis as certain types of MVs promote fibrolysis by increasing expression of matrix metalloproteinases, whereas others promote fibrosis by stimulating processes such as angiogenesis. MVs probably enhance portal hypertension by contributing to intrahepatic vasoconstriction, splanchnic vasodilation and angiogenesis. As MVs can modulate vascular permeability, vascular tone and angiogenesis, they might contribute to several complications of cirrhosis including hepatic encephalopathy, hepatopulmonary syndrome and hepatorenal syndrome. Several results also suggest that MVs have a role in hepatocellular carcinoma. Although MVs represent promising biomarkers in patients with liver disease, methods of isolation and subsequent analysis must be standardized.
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Affiliation(s)
- Sara Lemoinne
- INSERM, UMRS 938, Centre de Recherche Saint-Antoine, Sorbonne Universités, Université Pierre et Marie Curie Paris 6, 27 Rue Chaligny, 75571 Paris, France
| | - Dominique Thabut
- INSERM, UMRS 938, Centre de Recherche Saint-Antoine, Sorbonne Universités, Université Pierre et Marie Curie Paris 6, 27 Rue Chaligny, 75571 Paris, France
| | - Chantal Housset
- INSERM, UMRS 938, Centre de Recherche Saint-Antoine, Sorbonne Universités, Université Pierre et Marie Curie Paris 6, 27 Rue Chaligny, 75571 Paris, France
| | - Richard Moreau
- INSERM, U773, Centre de Recherche Biomédicale Bichat-Beaujon CRB3, Université Paris-Diderot-Paris 7, Hôpital Bichat, 46 Rue Henri Huchard, 75018 Paris, France
| | - Dominique Valla
- Service d'hépatologie, Hôpital Beaujon, 100 Boulevard du Général Leclerc, 92100 Clichy, France
| | - Chantal M Boulanger
- INSERM, U970, Paris Cardiovascular Research Center, Paris, Université Paris Descartes, Sorbonne Paris Cité, 56 Rue Leblanc, 75015 Paris, France
| | - Pierre-Emmanuel Rautou
- INSERM, U970, Paris Cardiovascular Research Center, Paris, Université Paris Descartes, Sorbonne Paris Cité, 56 Rue Leblanc, 75015 Paris, France
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Wahl P, Jansen F, Achtzehn S, Schmitz T, Bloch W, Mester J, Werner N. Effects of high intensity training and high volume training on endothelial microparticles and angiogenic growth factors. PLoS One 2014; 9:e96024. [PMID: 24770423 PMCID: PMC4000202 DOI: 10.1371/journal.pone.0096024] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2013] [Accepted: 04/03/2014] [Indexed: 12/21/2022] Open
Abstract
Aims Endothelial microparticles (EMP) are complex vesicular structures shed from activated or apoptotic endothelial cells. As endurance exercise affects the endothelium, the objective of the study was to examine levels of EMP and angiogenic growth factors following different endurance exercise protocols. Methods 12 subjects performed 3 different endurance exercise protocols: 1. High volume training (HVT; 130 min at 55% peak power output (PPO); 2. 4×4 min at 95% PPO; 3. 4×30 sec all-out. EMPs were quantified using flow cytometry after staining platelet-poor-plasma. Events positive for Annexin-V and CD31, and negative for CD42b, were classified as EMPs. Vascular endothelial growth factor (VEGF), migratory inhibiting factor (MIF) and hepatocyte growth factor (HGF) were determined by ELISA technique. For all these measurements venous blood samples were taken pre, 0′, 30′, 60′ and 180′ after each intervention. Furthermore, in vitro experiments were performed to explore the effect of collected sera on target endothelial functions and MP uptake capacities. Results VEGF and HGF significantly increased after HIT interventions. All three interventions caused a significant decrease in EMP levels post exercise compared to pre values. The sera taken after exercise increased the uptake of EMP in target endothelial cells compared to sera taken under resting conditions, which was shown to be phosphatidylserin-dependent. Increased EMP uptake was associated with an improved protection of target cells against apoptosis. Sera taken prior and after exercise promoted target endothelial cell migration, which was abrogated after inhibition of VEGF. Conclusion Physical exercise leads to decreased EMP levels and promotes a phosphatidylserin-dependent uptake of EMP into target endothelial cells, which is associated with a protection of target cells against apoptosis.
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Affiliation(s)
- Patrick Wahl
- Institute of Training Science and Sport Informatics, German Sport University, Cologne, Cologne, Germany
- Department of Molecular and Cellular Sport Medicine, Institute of Cardiovascular Research and Sport Medicine, German Sport University Cologne, Cologne, Germany
- The German Research Centre of Elite Sport, German Sport University Cologne, Cologne, Germany
- * E-mail:
| | - Felix Jansen
- Department of Internal Medicine II, Cardiology, Pneumology and Angiology, Medical Faculty, University of Bonn, Bonn, Germany
| | - Silvia Achtzehn
- Institute of Training Science and Sport Informatics, German Sport University, Cologne, Cologne, Germany
| | - Theresa Schmitz
- Department of Internal Medicine II, Cardiology, Pneumology and Angiology, Medical Faculty, University of Bonn, Bonn, Germany
| | - Wilhelm Bloch
- Department of Molecular and Cellular Sport Medicine, Institute of Cardiovascular Research and Sport Medicine, German Sport University Cologne, Cologne, Germany
- The German Research Centre of Elite Sport, German Sport University Cologne, Cologne, Germany
| | - Joachim Mester
- Institute of Training Science and Sport Informatics, German Sport University, Cologne, Cologne, Germany
- The German Research Centre of Elite Sport, German Sport University Cologne, Cologne, Germany
| | - Nikos Werner
- Department of Internal Medicine II, Cardiology, Pneumology and Angiology, Medical Faculty, University of Bonn, Bonn, Germany
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Abstract
Cell-cell communication has proven to be even more complex than previously thought since the discovery that extracellular vesicles serve as containers of biological information on various pathophysiological settings. Extracellular vesicles are classified into exosomes, microvesicles/microparticles, or apoptotic bodies, originating from different subcellular compartments. The cellular machinery controlling their formation and composition, as well as the mechanisms regulating their extracellular release, remain unfortunately much unknown. Extracellular vesicles have been found in plasma, urine, saliva, and inflammatory tissues. Their biomarker potential has raised significant interest in the cardiovascular field because the vesicle composition and microRNA content are specific signatures of cellular activation and injury. More than simply cell dust, extracellular vesicles are capable of transferring biological information to neighboring cells and play an active role in inflammatory diseases, including atherosclerosis and angiogenesis. The molecular interactions regulating these effects involve specific receptor activation, proteolytic enzymes, reactive oxygen species, or delivery of genetic information to target cells. Unraveling their mechanisms of action will likely open new therapeutic avenues.
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Affiliation(s)
- Xavier Loyer
- From the INSERM, U970, Paris Cardiovascular Research Center-PARCC; and Université Paris Descartes, Sorbonne Paris Cité, UMR-S970, Paris, France
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Gutiérrez L, Morales MP, Lázaro FJ. Prospects for magnetic nanoparticles in systemic administration: synthesis and quantitative detection. Phys Chem Chem Phys 2014; 16:4456-64. [DOI: 10.1039/c3cp54763a] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Methods for the quantitative determination of magnetic nanoparticles in biological matrices, in the frame of biomedical applications, are required to evaluate the particles biodistribution after systemic administration.
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Affiliation(s)
- L. Gutiérrez
- Department of Biomaterials and Bioinspired Materials
- Instituto de Ciencia de Materiales de Madrid (ICMM)/CSIC
- Cantoblanco, Spain
| | - M. P. Morales
- Department of Biomaterials and Bioinspired Materials
- Instituto de Ciencia de Materiales de Madrid (ICMM)/CSIC
- Cantoblanco, Spain
| | - F. J. Lázaro
- Department of Materials and Fluids Science and Technology
- Universidad de Zaragoza
- 50018 Zaragoza, Spain
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Jansen F, Yang X, Hoelscher M, Cattelan A, Schmitz T, Proebsting S, Wenzel D, Vosen S, Franklin BS, Fleischmann BK, Nickenig G, Werner N. Endothelial microparticle-mediated transfer of MicroRNA-126 promotes vascular endothelial cell repair via SPRED1 and is abrogated in glucose-damaged endothelial microparticles. Circulation 2013; 128:2026-38. [PMID: 24014835 DOI: 10.1161/circulationaha.113.001720] [Citation(s) in RCA: 342] [Impact Index Per Article: 31.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
BACKGROUND Repair of the endothelium after vascular injury is crucial for preserving endothelial integrity and preventing the development of vascular disease. The underlying mechanisms of endothelial cell repair are largely unknown. We sought to investigate whether endothelial microparticles (EMPs), released from apoptotic endothelial cells (ECs), influence EC repair. METHODS AND RESULTS Systemic treatment of mice with EMPs after electric denudation of the endothelium accelerated reendothelialization in vivo. In vitro experiments revealed that EMP uptake in ECs promotes EC migration and proliferation, both critical steps in endothelial repair. To dissect the underlying mechanisms, Taqman microRNA array was performed, and microRNA (miR)-126 was identified as the predominantly expressed miR in EMPs. The following experiments demonstrated that miR-126 was transported into recipient human coronary artery endothelial cells by EMPs and functionally regulated the target protein sprouty-related, EVH1 domain-containing protein 1 (SPRED1). Knockdown of miR-126 in EMPs abrogated EMP-mediated effects on human coronary artery endothelial cell migration and proliferation in vitro and reendothelialization in vivo. Interestingly, after simulating diabetic conditions, EMPs derived from glucose-treated ECs contained significantly lower amounts of miR-126 and showed reduced endothelial repair capacity in vitro and in vivo. Finally, expression analysis of miR-126 in circulating microparticles from 176 patients with stable coronary artery disease with and without diabetes mellitus revealed a significantly reduced miR-126 expression in circulating microparticles from diabetic patients. CONCLUSIONS Endothelial microparticles promote vascular endothelial repair by delivering functional miR-126 into recipient cells. In pathological hyperglycemic conditions, EMP-mediated miR-126-induced EC repair is altered.
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Affiliation(s)
- Felix Jansen
- Department of Internal Medicine II, University Hospital Bonn, Rheinische Friedrich-Wilhelms University, Bonn, Germany (F.J., M.H., A.C., T.S., S.P., G.N., N.W.); Feinberg Cardiovascular Research Institute, Northwestern University School of Medicine, Chicago, IL (X.Y.); Institute of Physiology, University Hospital Bonn, Rheinische Friedrich-Wilhelms University, Bonn, Germany (D.W., S.V., B.K.F.); and Institute of Innate Immunity, Rheinische Friedrich-Wilhelms University, Bonn, Germany (B.S.F.)
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Barteneva NS, Fasler-Kan E, Bernimoulin M, Stern JNH, Ponomarev ED, Duckett L, Vorobjev IA. Circulating microparticles: square the circle. BMC Cell Biol 2013; 14:23. [PMID: 23607880 PMCID: PMC3651414 DOI: 10.1186/1471-2121-14-23] [Citation(s) in RCA: 171] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2012] [Accepted: 03/20/2013] [Indexed: 01/05/2023] Open
Abstract
Background The present review summarizes current knowledge about microparticles (MPs) and provides a systematic overview of last 20 years of research on circulating MPs, with particular focus on their clinical relevance. Results MPs are a heterogeneous population of cell-derived vesicles, with sizes ranging between 50 and 1000 nm. MPs are capable of transferring peptides, proteins, lipid components, microRNA, mRNA, and DNA from one cell to another without direct cell-to-cell contact. Growing evidence suggests that MPs present in peripheral blood and body fluids contribute to the development and progression of cancer, and are of pathophysiological relevance for autoimmune, inflammatory, infectious, cardiovascular, hematological, and other diseases. MPs have large diagnostic potential as biomarkers; however, due to current technological limitations in purification of MPs and an absence of standardized methods of MP detection, challenges remain in validating the potential of MPs as a non-invasive and early diagnostic platform. Conclusions Improvements in the effective deciphering of MP molecular signatures will be critical not only for diagnostics, but also for the evaluation of treatment regimens and predicting disease outcomes.
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Affiliation(s)
- Natasha S Barteneva
- Program in Cellular and Molecular Medicine, Boston Children's Hospital, D-249, 200 Longwood Avenue, Boston, MA 02115, USA.
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30
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Knecht LD, Ali N, Wei Y, Hilt JZ, Daunert S. Nanoparticle-mediated remote control of enzymatic activity. ACS NANO 2012; 6:9079-86. [PMID: 22989219 PMCID: PMC4127402 DOI: 10.1021/nn303308v] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Nanomaterials have found numerous applications as tunable, remotely controlled platforms for drug delivery, hyperthermia cancer treatment, and various other biomedical applications. The basis for the interest lies in their unique properties achieved at the nanoscale that can be accessed via remote stimuli. These properties could then be exploited to simultaneously activate secondary systems that are not remotely actuatable. In this work, iron oxide nanoparticles are encapsulated in a bisacrylamide cross-linked polyacrylamide hydrogel network along with a model dehalogenase enzyme, L-2-HAD(ST). This thermophilic enzyme is activated at elevated temperatures and has been shown to have optimal activity at 70 °C. By exposing the Fe(3)O(4) nanoparticles to a remote stimulus, an alternating magnetic field (AMF), enhanced system heating can be achieved, thus remotely activating the enzyme. The internal heating of the nanocomposite hydrogel network in the AMF results in a 2-fold increase in enzymatic activity as compared to the same hydrogel heated externally in a water bath, suggesting that the internal heating of the nanoparticles is more efficient than the diffusion-limited heating of the water bath. This system may prove useful for remote actuation of biomedical and environmentally relevant enzymes and find applications in a variety of fields.
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Affiliation(s)
- Leslie D. Knecht
- Department of Chemistry, University of Miami, Miami, Florida 33136
| | - Nur Ali
- Paul Laurence Dunbar High School, Lexington, KY 40502
| | - Yinan Wei
- Department of Chemistry, University of Kentucky, Lexington, Kentucky 40506
| | - J. Zach Hilt
- Department of Chemical and Materials Engineering, University of Kentucky, Lexington, Kentucky 40506
| | - Sylvia Daunert
- Department of Biochemistry and Molecular Biology, University of Miami, Miller School of Medicine, Miami, Florida 33136
- Corresponding Author
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31
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Marangon I, Boggetto N, Ménard-Moyon C, Venturelli E, Béoutis ML, Péchoux C, Luciani N, Wilhelm C, Bianco A, Gazeau F. Intercellular carbon nanotube translocation assessed by flow cytometry imaging. NANO LETTERS 2012; 12:4830-4837. [PMID: 22928721 DOI: 10.1021/nl302273p] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The fate of carbon nanotubes in the organism is still controversial. Here, we propose a statistical high-throughput imaging method to localize and quantify functionalized multiwalled carbon nanotubes in cells. We give the first experimental evidence of an intercellular translocation of carbon nanotubes. This stress-induced longitudinal transfer of nanomaterials is mediated by cell-released microvesicles known as vectors for intercellular communication. This finding raises new critical issues for nanotoxicology, since carbon nanotubes could be disseminated by circulating extracellular cell-released vesicles and visiting several cells in the course of their passage into the organism.
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Affiliation(s)
- Iris Marangon
- CNRS/Université Paris Diderot, PRES Sorbonne-Paris Cité, Laboratoire Matière et Systèmes Complexes (MSC), UMR7057, 75205 Paris cedex 13, France
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Rautou PE, Bresson J, Sainte-Marie Y, Vion AC, Paradis V, Renard JM, Devue C, Heymes C, Letteron P, Elkrief L, Lebrec D, Valla D, Tedgui A, Moreau R, Boulanger CM. Abnormal plasma microparticles impair vasoconstrictor responses in patients with cirrhosis. Gastroenterology 2012; 143:166-76.e6. [PMID: 22465620 DOI: 10.1053/j.gastro.2012.03.040] [Citation(s) in RCA: 92] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2011] [Revised: 03/02/2012] [Accepted: 03/21/2012] [Indexed: 12/12/2022]
Abstract
BACKGROUND & AIMS Circulating membrane-shed microparticles (MPs) participate in regulation of vascular tone. We investigated the cellular origins of MPs in plasma from patients with cirrhosis and assessed the contribution of MPs to arterial vasodilation, a mechanism that contributes to portal hypertension. METHODS We analyzed MPs from blood samples of 91 patients with cirrhosis and 30 healthy individuals (controls) using flow cytometry; their effects on the vascular response to vasoconstrictors were examined in vitro and in vivo. RESULTS Circulating levels of leuko-endothelial (CD31(+)/41(-)), pan-leukocyte (CD11a(+)), lymphocyte (CD4(+)), and erythrocyte (CD235a(+)) MPs were higher in patients with cirrhosis than in controls. Plasma of patients with cirrhosis contained hepatocyte-derived MPs (cytokeratin-18(+)), whereas plasma from controls did not. The severity of cirrhosis and systemic inflammation were major determinants of the levels of leuko-endothelial and hepatocyte MPs. MPs from patients with advanced cirrhosis significantly impaired contraction of vessels in response to phenylephrine, whereas MPs from healthy controls or from patients of Child-Pugh class A did not. This effect depended on cyclooxygenase type 1 and required phosphatidylserine on the surface of MPs. Intravenous injection of MPs from patients with cirrhosis into BALB/C mice decreased mean arterial blood pressure. CONCLUSIONS Cirrhosis is associated with increases in circulating subpopulations of MPs, likely resulting from systemic inflammation and liver cell damage. The overall pool of circulating MPs from patients with advanced cirrhosis impairs vasoconstrictor responses and decreases blood pressure, contributing to the arterial vasodilation associated with portal hypertension.
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Choyke PL. Science to practice: imaging of cellular microparticles--magic dust or just dirt? Radiology 2012; 263:1-2. [PMID: 22438438 DOI: 10.1148/radiol.12120076] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Peter L Choyke
- Molecular Imaging Program, National Cancer Institute, Bethesda, MD 20892-1088, USA.
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