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Jacob R, Gorek LS. Intracellular galectin interactions in health and disease. Semin Immunopathol 2024; 46:4. [PMID: 38990375 PMCID: PMC11239732 DOI: 10.1007/s00281-024-01010-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Accepted: 03/07/2024] [Indexed: 07/12/2024]
Abstract
In the galectin family, a group of lectins is united by their evolutionarily conserved carbohydrate recognition domains. These polypeptides play a role in various cellular processes and are implicated in disease mechanisms such as cancer, fibrosis, infection, and inflammation. Following synthesis in the cytosol, manifold interactions of galectins have been described both extracellularly and intracellularly. Extracellular galectins frequently engage with glycoproteins or glycolipids in a carbohydrate-dependent manner. Intracellularly, galectins bind to non-glycosylated proteins situated in distinct cellular compartments, each with multiple cellular functions. This diversity complicates attempts to form a comprehensive understanding of the role of galectin molecules within the cell. This review enumerates intracellular galectin interaction partners and outlines their involvement in cellular processes. The intricate connections between galectin functions and pathomechanisms are illustrated through discussions of intracellular galectin assemblies in immune and cancer cells. This underscores the imperative need to fully comprehend the interplay of galectins with the cellular machinery and to devise therapeutic strategies aimed at counteracting the establishment of galectin-based disease mechanisms.
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Affiliation(s)
- Ralf Jacob
- Department of Cell Biology and Cell Pathology, Philipps University of Marburg, Karl-von-Frisch-Str. 14, D-35043, Marburg, Germany.
| | - Lena-Sophie Gorek
- Department of Cell Biology and Cell Pathology, Philipps University of Marburg, Karl-von-Frisch-Str. 14, D-35043, Marburg, Germany
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2
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Liu Y, Yang W, Xue J, Chen J, Liu S, Zhang S, Zhang X, Gu X, Dong Y, Qiu P. Neuroinflammation: The central enabler of postoperative cognitive dysfunction. Biomed Pharmacother 2023; 167:115582. [PMID: 37748409 DOI: 10.1016/j.biopha.2023.115582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 09/21/2023] [Accepted: 09/22/2023] [Indexed: 09/27/2023] Open
Abstract
The proportion of advanced age patients undergoing surgical procedures is on the rise owing to advancements in surgical and anesthesia technologies as well as an overall aging population. As a complication of anesthesia and surgery, older patients frequently suffer from postoperative cognitive dysfunction (POCD), which may persist for weeks, months or even longer. POCD is a complex pathological process involving multiple pathogenic factors, and its mechanism is yet unclear. Potential theories include inflammation, deposition of pathogenic proteins, imbalance of neurotransmitters, and chronic stress. The identification, prevention, and treatment of POCD are still in the exploratory stages owing to the absence of standardized diagnostic criteria. Undoubtedly, comprehending the development of POCD remains crucial in overcoming the illness. Neuroinflammation is the leading hypothesis and a crucial component of the pathological network of POCD and may have complex interactions with other mechanisms. In this review, we discuss the possible ways in which surgery and anesthesia cause neuroinflammation and investigate the connection between neuroinflammation and the development of POCD. Understanding these mechanisms may likely ensure that future treatment options of POCD are more effective.
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Affiliation(s)
- Yang Liu
- Department of Oncology, Shengjing Hospital of China Medical University, Shenyang 110004, Liaoning province, China
| | - Wei Yang
- Department of Infectious Disease, Shengjing Hospital of China Medical University, Shenyang 110004, Liaoning province, China
| | - Jinqi Xue
- Department of Oncology, Shengjing Hospital of China Medical University, Shenyang 110004, Liaoning province, China
| | - Juntong Chen
- Zhejiang University School of Medicine, Hangzhou 311121, Zhejiang province, China
| | - Shiqing Liu
- Department of Anesthesiology, Shengjing Hospital of China Medical University, Shenyang 110004, Liaoning Province, China
| | - Shijie Zhang
- Department of Anesthesiology, Shengjing Hospital of China Medical University, Shenyang 110004, Liaoning Province, China
| | - Xiaohui Zhang
- Department of Anesthesiology, Shengjing Hospital of China Medical University, Shenyang 110004, Liaoning Province, China
| | - Xi Gu
- Department of Oncology, Shengjing Hospital of China Medical University, Shenyang 110004, Liaoning province, China.
| | - Youjing Dong
- Department of Anesthesiology, Shengjing Hospital of China Medical University, Shenyang 110004, Liaoning Province, China.
| | - Peng Qiu
- Department of Anesthesiology, Shengjing Hospital of China Medical University, Shenyang 110004, Liaoning Province, China.
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Rangel-Ramírez VV, González-Sánchez HM, Lucio-García C. Exosomes: from biology to immunotherapy in infectious diseases. Infect Dis (Lond) 2023; 55:79-107. [PMID: 36562253 DOI: 10.1080/23744235.2022.2149852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Exosomes are extracellular vesicles derived from the endosomal compartment, which are released by all kinds of eukaryotic and prokaryotic organisms. These vesicles contain a variety of biomolecules that differ both in quantity and type depending on the origin and cellular state. Exosomes are internalized by recipient cells, delivering their content and thus contributing to cell-cell communication in health and disease. During infections exosomes may exert a dual role, on one hand, they can transmit pathogen-related molecules mediating further infection and damage, and on the other hand, they can protect the host by activating the immune response and reducing pathogen spread. Selective packaging of pathogenic components may mediate these effects. Recently, quantitative analysis of samples by omics technologies has allowed a deep characterization of the proteins, lipids, RNA, and metabolite cargoes of exosomes. Knowledge about the content of these vesicles may facilitate their therapeutic application. Furthermore, as exosomes have been detected in almost all biological fluids, pathogenic or host-derived components can be identified in liquid biopsies, making them suitable for diagnosis and prognosis. This review attempts to organize the recent findings on exosome composition and function during viral, bacterial, fungal, and protozoan infections, and their contribution to host defense or to pathogen spread. Moreover, we summarize the current perspectives and future directions regarding the potential application of exosomes for prophylactic and therapeutic purposes.
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Affiliation(s)
| | | | - César Lucio-García
- Centro de Investigación sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública, Cuernavaca, México
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Abstract
Abstract
Exosomes (EXOs) are naturally occurring tiny extracellular nanovesicles, which emancipate into the extracellular environment by exocytosis. By moving vital biological molecules (DNA, mRNA proteins, etc), EXOs contribute to intercellular communications. Camel milk (CM) as a valuable food, is rich of EXO. Nowadays, EXOs are promising delivery agents for several diseases therapy. Camel milk exosomes (CMEXOs) have unique ingredients in comparison to other animal milks. It is documented that CMEXOs reduce the growth of cancer cells through inducing apoptosis, inhibation of oxidative stress and inflammation occurance. By inhibation of inflammatory, and apoptosis pathways, CMEXOs could inhibit numerous of pathways, leading to adverse effects, due to drug levels over the therapeutic window. Moreover, CMEXOs exhibited a prominent property in improving the antioxidant capability in both in vitro and in vivo experiments. Moreover, the anti-angiogenesis property of CMEXOs was illustrated via decrease in expression of the angiogenesis-related gene; vascular endothelial growth factor (VEGF). It is expected that exosomal lactoferrin (LF) and kappa casein (KC) mRNAs are crucial parts of CMEXOs mediating their anticancer effects. The immunomodulatory effect of CMEXOs may be attributed to their high contents of LF and KC. According to previous works, CMEXOs are favorable elements in developing new therapeutic methods to remedy innumerable diseases. This review aims to provide an overview on the isolation, characterization and biological activities of the exosomes derived from camel milk for address their possible use in therapeutics.
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Investigating Cancerous Exosomes’ Effects on CD8+ T-Cell IL-2 Production in a 3D Unidirectional Flow Bioreactor Using 3D Printed, RGD-Functionalized PLLA Scaffolds. J Funct Biomater 2022; 13:jfb13010030. [PMID: 35323230 PMCID: PMC8950614 DOI: 10.3390/jfb13010030] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Revised: 03/07/2022] [Accepted: 03/08/2022] [Indexed: 11/16/2022] Open
Abstract
Exosomes from cancer cells are implicated in cancer progression and metastasis, carrying immunosuppressive factors that limit the antitumor abilities of immune cells. The development of a real-time, 3D cell/scaffold construct flow perfusion system has been explored as a novel tool in the study of T-cells and exosomes from cancer cells. Exosomes from human lung cancer (H1299 and A549) cells were co-cultured in a unidirectional flow bioreactor with CD8+ T-cells immobilized onto 3D-printed RGD-functionalized poly(L-lactic) acid (PLLA) scaffolds and assessed for IL-2 production. The IL-2 production was investigated for a wide range of T-cell to exosome ratios. With the successful incorporation of the RGD binding motif onto the PLLA surface at controllable densities, CD8+ T-cells were successfully attached onto 2D disks and 3D printed porous PLLA scaffolds. T-cell attachment increased with increasing RGD surface density. The diameter of the attached T-cells was 7.2 ± 0.2 µm for RGD densities below 0.5 nmoles/mm2 but dropped to 5.1 ± 0.3 µm when the RGD density was 2 nmoles/mm2 due to overcrowding. The higher the number of cancer exosomes, the less the IL-2 production by the surface-attached T-cells. In 2D disks, the IL-2 production was silenced for T-cell to exosome ratios higher than 1:10 in static conditions. IL-2 production silencing in static 3D porous scaffolds required ratios higher than 1:20. The incorporation of flow resulted in moderate to significant T-cell detachment. The portions of T-cells retained on the 3D scaffolds after exposure for 4 h to 0.15 or 1.5 mL/min of perfusion flow were 89 ± 11% and 30 ± 8%, respectively. On 3D scaffolds and in the presence of flow at 0.15 ml/min, both H1299 and A549 cancerous exosomes significantly suppressed IL-2 production for T-cell to exosome ratios of 1:1000. The much higher level of exosomes needed to silence the IL-2 production from T-cells cultured under unidirectional flow, compared to static conditions, denotes the importance of the culturing conditions and the hydrodynamic environment, on the interactions between CD8+ T-cells and cancer exosomes.
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Gall AR, Amoah SK, Kitase Y, Jantzie LL. Placental mediated mechanisms of perinatal brain injury: Evolving inflammation and exosomes. Exp Neurol 2022; 347:113914. [PMID: 34752783 PMCID: PMC8712107 DOI: 10.1016/j.expneurol.2021.113914] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2021] [Revised: 10/29/2021] [Accepted: 11/01/2021] [Indexed: 01/03/2023]
Abstract
Pregnancy is an inflammatory process that is carefully regulated by the placenta via immunomodulation and cell-to-cell communication of maternal and fetal tissues. Exosomes, types of extracellular vesicles, facilitate the intercellular communication and traffic biologically modifying cargo within the maternal-placental-fetal axis in normal and pathologic pregnancies. Chorioamnionitis is characterized by inflammation of chorioamniotic membranes that produces systemic maternal and fetal inflammatory responses of cytokine dysregulation and has been associated with brain injury and neurodevelopmental disorders. This review focuses on how pathologic placental exosomes propagate acute and chronic inflammation leading to brain injury. The evidence reviewed here highlights the need to investigate exosomes from pathologic pregnancies and those with known brain injury to identify new diagnostics, biomarkers, and potential therapeutic targets.
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Affiliation(s)
- Alexander R Gall
- Division of Neonatology, Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Stephen K Amoah
- Division of Neonatology, Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Yuma Kitase
- Division of Neonatology, Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Lauren L Jantzie
- Division of Neonatology, Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, MD, USA,Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, USA,Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA,Kennedy Krieger Institute, Baltimore, MD, USA,Corresponding author at: 600 N. Wolfe Street, CMSC Building, 6-104A, Baltimore, MD 21287, USA. (L.L. Jantzie)
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Huda MN, Nafiujjaman M, Deaguero IG, Okonkwo J, Hill ML, Kim T, Nurunnabi M. Potential Use of Exosomes as Diagnostic Biomarkers and in Targeted Drug Delivery: Progress in Clinical and Preclinical Applications. ACS Biomater Sci Eng 2021; 7:2106-2149. [PMID: 33988964 PMCID: PMC8147457 DOI: 10.1021/acsbiomaterials.1c00217] [Citation(s) in RCA: 99] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Accepted: 05/03/2021] [Indexed: 12/13/2022]
Abstract
Exosomes are cell-derived vesicles containing heterogeneous active biomolecules such as proteins, lipids, mRNAs, receptors, immune regulatory molecules, and nucleic acids. They typically range in size from 30 to 150 nm in diameter. An exosome's surfaces can be bioengineered with antibodies, fluorescent dye, peptides, and tailored for small molecule and large active biologics. Exosomes have enormous potential as a drug delivery vehicle due to enhanced biocompatibility, excellent payload capability, and reduced immunogenicity compared to alternative polymeric-based carriers. Because of active targeting and specificity, exosomes are capable of delivering their cargo to exosome-recipient cells. Additionally, exosomes can potentially act as early stage disease diagnostic tools as the exosome carries various protein biomarkers associated with a specific disease. In this review, we summarize recent progress on exosome composition, biological characterization, and isolation techniques. Finally, we outline the exosome's clinical applications and preclinical advancement to provide an outlook on the importance of exosomes for use in targeted drug delivery, biomarker study, and vaccine development.
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Affiliation(s)
- Md Nurul Huda
- Environmental Science & Engineering, University of Texas at El Paso, El Paso, TX 79968
| | - Md Nafiujjaman
- Department of Biomedical Engineering, Institute for Quantitative Health Science and Engineering, Michigan State University, East Lansing, MI 48824
| | - Isaac G Deaguero
- Biomedical Engineering, University of Texas at El Paso, El Paso, TX 79968
| | - Jude Okonkwo
- John A Paulson School of Engineering, Harvard University, Cambridge, MA 02138
| | - Meghan L. Hill
- Department of Biomedical Engineering, Institute for Quantitative Health Science and Engineering, Michigan State University, East Lansing, MI 48824
| | - Taeho Kim
- Department of Biomedical Engineering, Institute for Quantitative Health Science and Engineering, Michigan State University, East Lansing, MI 48824
| | - Md Nurunnabi
- Environmental Science & Engineering, University of Texas at El Paso, El Paso, TX 79968
- Biomedical Engineering, University of Texas at El Paso, El Paso, TX 79968
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Texas at El Paso, El Paso, TX 79902
- Border Biomedical Research Center, University of Texas at El Paso, El Paso, TX 79968
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Butreddy A, Kommineni N, Dudhipala N. Exosomes as Naturally Occurring Vehicles for Delivery of Biopharmaceuticals: Insights from Drug Delivery to Clinical Perspectives. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:1481. [PMID: 34204903 PMCID: PMC8229362 DOI: 10.3390/nano11061481] [Citation(s) in RCA: 79] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 05/28/2021] [Accepted: 05/31/2021] [Indexed: 12/12/2022]
Abstract
Exosomes as nanosized vesicles are emerging as drug delivery systems for therapeutics owing to their natural origin, their ability to mediate intercellular communication, and their potential to encapsulate various biological molecules such as proteins and nucleic acids within the lipid bilayer membrane or in the lumen. Exosomes contain endogenous components (proteins, lipids, RNA) that could be used to deliver cargoes to target cells, offering an opportunity to diagnose and treat various diseases. Owing to their ability to travel safely in extracellular fluid and to transport cargoes to target cells with high efficacy, exosomes offer enhanced delivery of cargoes in vivo. However, several challenges related to the stabilization of the exosomes, the production of sufficient amounts of exosomes with safety and efficacy, the efficient loading of drugs into exosomes, the clearance of exosomes from circulation, and the transition from the bench scale to clinical production may limit their development and clinical use. For the clinical use of exosomes, it is important to understand the molecular mechanisms behind the transport and function of exosome vesicles. This review exploits techniques related to the isolation and characterization of exosomes and their drug delivery potential to enhance the therapeutic outcome and stabilization methods. Further, routes of administration, clinical trials, and regulatory aspects of exosomes will be discussed in this review.
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Affiliation(s)
- Arun Butreddy
- Formulation R&D, Biological E. Limited, IKP Knowledge Park, Shameerpet, Hyderabad 500078, Telangana State, India;
| | - Nagavendra Kommineni
- College of Pharmacy and Pharmaceutical Sciences, Florida A&M University, Tallahassee, FL 32307, USA;
| | - Narendar Dudhipala
- Depratment of Pharmaceutics, Vaagdevi College of Pharmacy, Warangal 506005, Telangana State, India
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Liu Y, Shi K, Chen Y, Wu X, Chen Z, Cao K, Tao Y, Chen X, Liao J, Zhou J. Exosomes and Their Role in Cancer Progression. Front Oncol 2021; 11:639159. [PMID: 33828985 PMCID: PMC8020998 DOI: 10.3389/fonc.2021.639159] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Accepted: 02/26/2021] [Indexed: 12/13/2022] Open
Abstract
Exosomes from extracellular vesicles can activate or inhibit various signaling pathways by transporting proteins, lipids, nucleic acids and other substances to recipient cells. In addition, exosomes are considered to be involved in the development and progression of tumors from different tissue sources in numerous ways, including remodeling of the tumor microenvironment, promoting angiogenesis, metastasis, and invasion, and regulating the immune escape of tumor cells. However, the precise molecular mechanisms by which exosomes participate in these different processes remains unclear. In this review, we describe the research progress of tumor cell-derived exosomes in cancer progression. We also discuss the prospects of the application of exosomes combined with nanoengineered chemotherapeutic drugs in the treatment of cancer.
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Affiliation(s)
- Yang Liu
- Departments of Plastic and Reconstructive Surgery, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Ke Shi
- Departments of Plastic and Reconstructive Surgery, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Yong Chen
- Department of Dermatology, The First Hospital of Changsha, Changsha, China
| | - Xianrui Wu
- Departments of Plastic and Reconstructive Surgery, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Zheng Chen
- Departments of Plastic and Reconstructive Surgery, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Ke Cao
- Department of Oncology, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Yongguang Tao
- Key Laboratory of Carcinogenesis, Ministry of Education, Cancer Research Institute, School of Basic Medicine, Central South University, Changsha, China
| | - Xiang Chen
- Department of Dermatology of Xiangya Hospital, Central South University, Changsha, China
| | - Junlin Liao
- Departments of Medical Cosmetology, The First Affiliated Hospital, University of South China, Hengyang, China
| | - Jianda Zhou
- Departments of Plastic and Reconstructive Surgery, The Third Xiangya Hospital, Central South University, Changsha, China
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Abstract
Exosomes are nanoscale extracellular vesicles that can transport cargos of proteins, lipids, DNA, various RNA species and microRNAs (miRNAs). Exosomes can enter cells and deliver their contents to recipient cell. Owing to their cargo exosomes can transfer different molecules to the target cells and change the phenotype of these cells. The fate of the contents of an exosome depends on its target destination. Various mechanisms for exosome uptake by target cells have been proposed, but the mechanisms responsible for exosomes internalization into cells are still debated. Exosomes exposed cells produce labeled protein kinases, which are expressed by other cells. This means that these kinases are internalized by exosomes, and transported into the cytoplasm of recipient cells. Many studies have confirmed that exosomes are not only secreted by living cells, but also internalized or accumulated by the other cells. The "next cell hypothesis" supports the notion that exosomes constitute communication vehicles between neighboring cells. By this mechanism, exosomes participate in the development of diabetes and its associated complications, critically contribute to the spreading of neuronal damage in Alzheimer's disease, and non-proteolysed form of Fas ligand (mFasL)-bearing exosomes trigger the apoptosis of T lymphocytes. Furthermore, exosomes derived from human B lymphocytes induce antigen-specific major histocompatibility complex (MHC) class II-restricted T cell responses. Interestingly, exosomes secreted by cancer cells have been demonstrated to express tumor antigens, as well as immune suppressive molecules. This process is defined as "exosome-immune suppression" concept. The interplay via the exchange of exosomes between cancer cells and between cancer cells and the tumor stroma promote the transfer of oncogenes and onco-miRNAs from one cell to other. Circulating exosomes that are released from hypertrophic adipocytes are effective in obesity-related complications. On the other hand, the "inflammasome-induced" exosomes can activate inflammatory responses in recipient cells. In this chapter protein kinases-related checkpoints are emphasized considering the regulation of exosome biogenesis, secretory traffic, and their impacts on cell death, tumor growth, immune system, and obesity.
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Affiliation(s)
- Atilla Engin
- Department of General Surgery, Faculty of Medicine, Gazi University, Ankara, Turkey.
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Wang Y, Zhang Y, Cai G, Li Q. Exosomes as Actively Targeted Nanocarriers for Cancer Therapy. Int J Nanomedicine 2020; 15:4257-4273. [PMID: 32606676 PMCID: PMC7306454 DOI: 10.2147/ijn.s239548] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Accepted: 05/25/2020] [Indexed: 12/11/2022] Open
Abstract
In recent years, it has been found that exosomes can be used as nanocarriers, which can be used in the treatment of tumors by carrying contents. The exosomes are derived from the secretion of the organism's own cells and are characterized by a phospholipid bilayer structure and a small particle size. These characteristics guarantee that the exosomes can carry a wide range of tumor drugs, deliver the drug to the cancer, and reduce or eliminate the tumor drug band. The toxic side effects were significantly eliminated; meanwhile, the therapeutic effects of the drug on the tumor were remarkably improved. This paper reviewed the strategies and drugs presented by different scholars for the treatment of tumors based on the drugs carried by exosomes.
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Affiliation(s)
- Yan Wang
- Department of Medical Oncology & Cancer Institute of Integrative Medicine, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai201203, People’s Republic of China
| | - Yingru Zhang
- Department of Medical Oncology & Cancer Institute of Integrative Medicine, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai201203, People’s Republic of China
| | - Gang Cai
- Department of Medical Oncology & Cancer Institute of Integrative Medicine, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai201203, People’s Republic of China
| | - Qi Li
- Department of Medical Oncology & Cancer Institute of Integrative Medicine, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai201203, People’s Republic of China
- Academy of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai201203, People’s Republic of China
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Improved viability and fertility of frozen-thawed dog sperm using adipose-derived mesenchymal stem cells. Sci Rep 2020; 10:7034. [PMID: 32341452 PMCID: PMC7184611 DOI: 10.1038/s41598-020-61803-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Accepted: 03/03/2020] [Indexed: 02/07/2023] Open
Abstract
Cryopreservation procedures negatively affect the quality traits of sperm, causing certain changes at structural and molecular levels due to thermal, mechanical, osmotic, and oxidative damage. The objective of this study was to examine the potential of canine adipose-derived mesenchymal stem cells (Ad-MSCs) for providing protection to the dog sperm against cryo-damage. Canine Ad-MSCs were selected on the basis of the significantly higher gene expression for different proteins actively involved in the cell repair including annexin 1 (ANX1), histone H3 (H3) and high mobility group B (HMGB) protein compared to skin fibroblasts. Semen was collected from four healthy dogs by digital manipulation. The washed pooled ejaculates were diluted with buffer 2 (extender) supplemented without Ad-MSCs (Control), with 2.5 × 106 Ad-MSCs/mL (Group 1) or with 5 × 106 Ad-MSCs/mL (Group 2). Group 1 exhibited significantly higher post-thaw motility, live sperm, intact plasma membrane and normal acrosomes than the other groups. Additionally, Group 1 showed significantly higher expression levels of genes related to the repair of membranes (ANX1, dysferlin; DYSF, and fibronectin; FN1) and chromatin material (H3 and HMGB). Protein expression of ANX1, H 3, and FN1 was also statistically more in Group 1 than in Control. The results confirm that canine Ad-MSCs can effectively preserve the quality of frozen-thawed sperm by a reduction in cryoinjury. At an appropriate concentration, Ad-MSCs significantly improve the quality of post-thaw dog sperm.
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Cocozza F, Menay F, Tsacalian R, Elisei A, Sampedro P, Soria I, Waldner C, Gravisaco MJ, Mongini C. Cyclophosphamide enhances the release of tumor exosomes that elicit a specific immune response in vivo in a murine T-cell lymphoma. Vaccine 2019; 37:1565-1576. [PMID: 30777349 DOI: 10.1016/j.vaccine.2019.02.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Revised: 01/28/2019] [Accepted: 02/05/2019] [Indexed: 12/11/2022]
Abstract
Exosomes are 60-150 nm small extracellular vesicles (EVs) released by most cells. Tumor-cell-derived exosomes, used as a vaccine, elicit a specific cytotoxic response against tumor cells, usually with a greater immunogenicity than tumor-cell lysates. However, the number of exosomes isolated from culture cells is limited. In recent studies, it was observed that cells respond to different stressor stimuli such as cytotoxic drugs, hypoxia, acidosis, or radiation by increasing the release of EVs. In this study, using the murine LBC T-cell lymphoma, we found that cyclophosphamide significantly increased EVs yield. These EVs express exosome marker proteins such as TSG-101, CD9, CD81, and CD63. Furthermore, similar humoral and cellular immune responses were induced in vivo by EVs isolated from LBC-tumor cells whether they were grown under normal culture conditions (EVs C) or in the presence of cyclophosphamide (EVs CTX). Mice vaccinated either with EVs C or EVs CTX were similarly protected against an intraperitoneal challenge with LBC tumor cells. CD4+ and CD8+ IFN-γ secreting cells were induced in immunized mice and a specific cytotoxic cellular immune response was elicited in vitro. These results demonstrate that a Th1 response was induced by immunization with the EVs. Our findings suggest that treatment of tumor cells with cyclophosphamide is a useful method to enhance the secretion of EVs in sensitive cell lines without altering their antitumor properties and thus may be used to produce antigens for future design of cancer vaccines.
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Affiliation(s)
- Federico Cocozza
- Centro de Estudios Farmacológicos y Botánicos (CEFYBO), CONICET-UBA, Argentina
| | - Florencia Menay
- Centro de Estudios Farmacológicos y Botánicos (CEFYBO), CONICET-UBA, Argentina
| | - Rodrigo Tsacalian
- Centro de Estudios Farmacológicos y Botánicos (CEFYBO), CONICET-UBA, Argentina
| | | | - Pura Sampedro
- Facultad de Ciencias Exactas, Químicas y Naturales Universidad de Morón, Argentina
| | - Ivana Soria
- Instituto de Virología, INTA Castelar, Argentina
| | - Claudia Waldner
- Centro de Estudios Farmacológicos y Botánicos (CEFYBO), CONICET-UBA, Argentina
| | | | - Claudia Mongini
- Centro de Estudios Farmacológicos y Botánicos (CEFYBO), CONICET-UBA, Argentina; Instituto de Virología, INTA Castelar, Argentina; Facultad de Ciencias Exactas, Químicas y Naturales Universidad de Morón, Argentina.
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14
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Montaner-Tarbes S, Novell E, Tarancón V, Borrás FE, Montoya M, Fraile L, Del Portillo HA. Targeted-pig trial on safety and immunogenicity of serum-derived extracellular vesicles enriched fractions obtained from Porcine Respiratory and Reproductive virus infections. Sci Rep 2018; 8:17487. [PMID: 30504834 PMCID: PMC6269534 DOI: 10.1038/s41598-018-36141-5] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Accepted: 11/01/2018] [Indexed: 11/09/2022] Open
Abstract
The Porcine Reproductive and Respiratory Syndrome Virus (PRRSV) is the etiological agent of one of the most important swine diseases with a significant economic burden worldwide. Unfortunately, available vaccines are partially effective highlighting the need of novel approaches. Previously, antigenic viral proteins were described in serum-derived extracellular vesicles (EVs) from pigs previously infected with PRRSV. Here, a targeted-pig trial was designed to determine the safety and immunogenicity of such extracellular vesicles enriched fractions. Our results showed that immunizations with EV-enriched fractions from convalescence animals in combination with montanide is safe and free of virus as immunizations with up-to two milligrams of EV-enriched fractions did not induce clinical symptoms, adverse effects and detectable viral replication. In addition, this vaccine formulation was able to elicit specific humoral IgG immune response in vaccinated animals, albeit variably. Noticeably, sera from vaccinated animals was diagnosed negative when tested for PRRSV using a commercial ELISA test; thus, indicating that this new approach differentiates vaccinated from infected animals. Lastly, after priming animals with EV-enriched fractions from sera of convalescence animals and boosting them with synthetic viral peptides identified by mass spectrometry, a distinctive high and specific IFN-γ response was elicited. Altogether, our data strongly suggest the use of serum EV-enriched fractions as a novel vaccine strategy against PRRSV.
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Affiliation(s)
- Sergio Montaner-Tarbes
- Innovex Therapeutics S.L, Badalona, Spain
- Departamento de Ciència Animal, ETSEA, Avenida Alcalde Rovira Roure, 191, Universidad de Lleida, Lleida, Spain
| | | | | | - Francesc E Borrás
- Innovex Therapeutics S.L, Badalona, Spain
- Germans Trias i Pujol Health Science Research Institute (IGTP), Can Ruti Campus, 08916, Badalona, Spain
| | | | - Lorenzo Fraile
- Innovex Therapeutics S.L, Badalona, Spain.
- Departamento de Ciència Animal, ETSEA, Avenida Alcalde Rovira Roure, 191, Universidad de Lleida, Lleida, Spain.
| | - Hernando A Del Portillo
- Innovex Therapeutics S.L, Badalona, Spain.
- Germans Trias i Pujol Health Science Research Institute (IGTP), Can Ruti Campus, 08916, Badalona, Spain.
- ISGlobal, Hospital Clínic - Universitat de Barcelona, C/ Roselló 153, 08036, Barcelona, Spain.
- Institució Catalana de Recerca i Estudis Avançats (ICREA), Passeig Luis Companys 23, 08010, Barcelona, Spain.
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15
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Jesus S, Soares E, Cruz MT, Borges O. Exosomes as adjuvants for the recombinant hepatitis B antigen: First report. Eur J Pharm Biopharm 2018; 133:1-11. [PMID: 30287267 DOI: 10.1016/j.ejpb.2018.09.029] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Revised: 08/10/2018] [Accepted: 09/28/2018] [Indexed: 01/11/2023]
Abstract
Over the past few years, exosomes, a class of extracellular vesicles (EVs), have emerged as key players for inter-cellular communication ultimately modulating the behavior of target cells with countless outcomes. Nevertheless, the potential role of exosomes as vaccine adjuvants remains largely unexplored. Herein, we hypothesized that exosomes derived from immune cells may have an immunostimulatory effect and could constitute a good target towards the development of new fine-tuned vaccine adjuvants. To accomplish this goal, exosomes isolated from lipopolysaccharide endotoxin (LPS)-stimulated human monocytic cell line (THP-1) were characterized and tested for their non-specific immunostimulatory activity when administered subcutaneously to healthy mice; additionally, exosomes' vaccine adjuvant ability was also disclosed after their inclusion in vaccine formulations. The results obtained suggested that the isolated exosomes evoked a pro-inflammatory profile in spleen cells of healthy mice through the induction of cytokines such as tumor necrosis factor alpha (TNF-α), chemokine (C-C motif) ligand 5 (CCL5, also known as RANTES) and interleukin 1 beta (IL-1β). Moreover, subcutaneous vaccination of mice with exosomes combined with a solution of hepatitis B recombinant antigen (HBsAg) or combined with a suspension containing HBsAg loaded poly-ε-caprolactone (PCL)/chitosan nanoparticles (NPs), induced a humoral immune response quite similar to the one achieved with the experimental control group (HBsAg solution without exosomes). However, exosomes triggered an immunomodulator effect on the cellular immune response, highlighted by the enhancement of IFN-γ secretion. To the best of authors knowledge, this is the first report describing extensively the role of unmodified exosomes as adjuvants and co-adjuvants for hepatitis B vaccination strategies.
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Affiliation(s)
- Sandra Jesus
- Faculty of Pharmacy, University of Coimbra, Pólo das Ciências da Saúde Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal; Center for Neuroscience and Cell Biology, University of Coimbra, Rua Larga, Faculty of Medicine, 1st floor, 3004-504 Coimbra, Portugal
| | - Edna Soares
- Faculty of Pharmacy, University of Coimbra, Pólo das Ciências da Saúde Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal; Center for Neuroscience and Cell Biology, University of Coimbra, Rua Larga, Faculty of Medicine, 1st floor, 3004-504 Coimbra, Portugal
| | - Maria Teresa Cruz
- Faculty of Pharmacy, University of Coimbra, Pólo das Ciências da Saúde Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal; Center for Neuroscience and Cell Biology, University of Coimbra, Rua Larga, Faculty of Medicine, 1st floor, 3004-504 Coimbra, Portugal
| | - Olga Borges
- Faculty of Pharmacy, University of Coimbra, Pólo das Ciências da Saúde Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal; Center for Neuroscience and Cell Biology, University of Coimbra, Rua Larga, Faculty of Medicine, 1st floor, 3004-504 Coimbra, Portugal.
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16
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Lichtenegger E, Koll F, Haas H, Mantwill K, Janssen KP, Laschinger M, Gschwend J, Steiger K, Black PC, Moskalev I, Nawroth R, Holm PS. The Oncolytic Adenovirus XVir-N-31 as a Novel Therapy in Muscle-Invasive Bladder Cancer. Hum Gene Ther 2018; 30:44-56. [PMID: 29916265 DOI: 10.1089/hum.2018.026] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Muscle-invasive bladder cancer represents approximately 25% of diagnosed bladder cancer cases and carries a significant risk of death. Oncolytic viruses are novel antitumor agents with the ability to selectively replicate and lyse tumor cells while sparing healthy tissue. We explored the efficiency of the oncolytic YB-1-selective adenovirus XVir-N-31 in vitro and in an orthotopic mouse model for bladder cancer by intramural injection under ultrasound guidance. We demonstrated that XVir-N-31 replicated in bladder cancer cells and induced a stronger immunogenic cell death than wild-type adenovirus by facilitating enhanced release of HMGB1 and exosomal Hsp70. The intratumoral delivery of XVir-N-31 by ultrasound guidance delayed tumor growth in an immunodeficient model, demonstrating the feasibility of this approach to deliver oncolytic viruses directly into the tumor.
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Affiliation(s)
- Eva Lichtenegger
- 1 Department of Urology, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Florestan Koll
- 1 Department of Urology, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Helena Haas
- 2 Department of Radiology, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Klaus Mantwill
- 1 Department of Urology, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Klaus-Peter Janssen
- 3 Department of Surgery, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Melanie Laschinger
- 3 Department of Surgery, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Jürgen Gschwend
- 1 Department of Urology, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Katja Steiger
- 4 Department of Pathology, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Peter C Black
- 5 The Vancouver Prostate Centre and Department of Urologic Sciences, University of British Columbia, Vancouver, BC, Canada
| | - Igor Moskalev
- 5 The Vancouver Prostate Centre and Department of Urologic Sciences, University of British Columbia, Vancouver, BC, Canada
| | - Roman Nawroth
- 1 Department of Urology, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Per Sonne Holm
- 1 Department of Urology, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany.,6 XVir Therapeutics GmbH, Munich, Germany
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17
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Doeppner TR, Bähr M, Giebel B, Hermann DM. Immunological and non-immunological effects of stem cell-derived extracellular vesicles on the ischaemic brain. Ther Adv Neurol Disord 2018; 11:1756286418789326. [PMID: 30083231 PMCID: PMC6071165 DOI: 10.1177/1756286418789326] [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: 04/23/2018] [Accepted: 06/05/2018] [Indexed: 12/21/2022] Open
Abstract
Following the implementation of thrombolysis and endovascular recanalization
strategies, stroke therapy has profoundly changed in recent years. In spite of
these advancements, a considerable proportion of stroke patients still exhibit
functional impairment in the long run, increasing the need for adjuvant
therapies that promote neurological recovery. Stem cell therapies have initially
attracted great interest in the stroke field, since there were hopes that
transplanted cells may allow for the replacement of lost cells. After the
recognition that transplanted cells integrate poorly into existing neural
networks and that they induce brain remodelling in a paracrine way by secreting
a heterogeneous group of nanovesicles, these extracellular vesicles (EVs) have
been identified as key players that mediate restorative effects of stem and
progenitor cells in ischaemic brain tissue. We herein review restorative effects
of EVs in stroke models and discuss immunological and non-immunological
mechanisms that may underlie recovery of function.
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Affiliation(s)
- Thorsten R Doeppner
- Department of Neurology, University Medical Center Goettingen, Robert-Koch-Str. 40, 37075 Goettingen, Germany
| | - Mathias Bähr
- Department of Neurology, University Medical Center Goettingen, Department of Neurology, Goettingen, Germany
| | - Bernd Giebel
- Institute of Transfusion Medicine, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Dirk M Hermann
- Department of Neurology, University Hospital Essen, Hufelandstr. 55, 45147 Essen, Germany
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18
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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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19
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Chang YH, Wu KC, Harn HJ, Lin SZ, Ding DC. Exosomes and Stem Cells in Degenerative Disease Diagnosis and Therapy. Cell Transplant 2018; 27:349-363. [PMID: 29692195 PMCID: PMC6038041 DOI: 10.1177/0963689717723636] [Citation(s) in RCA: 107] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Stroke can cause death and disability, resulting in a huge burden on society. Parkinson’s disease (PD) is a chronic neurodegenerative disorder characterized by motor dysfunction. Osteoarthritis (OA) is a progressive degenerative joint disease characterized by cartilage destruction and osteophyte formation in the joints. Stem cell therapy may provide a biological treatment alternative to traditional pharmacological therapy. Mesenchymal stem cells (MSCs) are preferred because of their differentiation ability and possible derivation from many adult tissues. In addition, the paracrine effects of MSCs play crucial anti-inflammatory and immunosuppressive roles in immune cells. Extracellular vesicles (EVs) are vital mediators of cell-to-cell communication. Exosomes contain various molecules such as microRNA (miRNA), which mediates biological functions through gene regulation. Therefore, exosomes carrying miRNA or other molecules can enhance the therapeutic effects of MSC transplantation. MSC-derived exosomes have been investigated in various animal models representing stroke, PD, and OA. Exosomes are a subtype of EVs. This review article focuses on the mechanism and therapeutic potential of MSC-derived exosomes in stroke, PD, and OA in basic and clinical aspects.
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Affiliation(s)
- Yu-Hsun Chang
- 1 Department of Pediatrics, Buddhist Tzu Chi General Hospital, Hualien, Taiwan.,2 Institute of Medical Sciences, Tzu Chi University, Hualien, Taiwan
| | - Kung-Chi Wu
- 3 Department of Orthopedics, Buddhist Tzu Chi General Hospital, Hualien, Taiwan
| | - Horng-Jyh Harn
- 4 Department of Pathology, Buddhist Tzu Chi General Hospital, Hualien, Taiwan
| | - Shinn-Zong Lin
- 5 Department of Neurosurgery, Buddhist Tzu Chi General Hospital, Hualien, Taiwan
| | - Dah-Ching Ding
- 2 Institute of Medical Sciences, Tzu Chi University, Hualien, Taiwan.,6 Department of Obstetrics and Gynecology, Buddhist Tzu Chi General Hospital, Hualien, Taiwan
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20
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Sagini K, Costanzi E, Emiliani C, Buratta S, Urbanelli L. Extracellular Vesicles as Conveyors of Membrane-Derived Bioactive Lipids in Immune System. Int J Mol Sci 2018; 19:ijms19041227. [PMID: 29670015 PMCID: PMC5979532 DOI: 10.3390/ijms19041227] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Revised: 04/06/2018] [Accepted: 04/14/2018] [Indexed: 12/11/2022] Open
Abstract
Over the last 20 years, extracellular vesicles (EVs) have been established as an additional way to transmit signals outside the cell. They are membrane-surrounded structures of nanometric size that can either originate from the membrane invagination of multivesicular bodies of the late endosomal compartment (exosomes) or bud from the plasma membrane (microvesicles). They contain proteins, lipids, and nucleic acids—namely miRNA, but also mRNA and lncRNA—which are derived from the parental cell, and have been retrieved in every fluid of the body. As carriers of antigens, either alone or in association with major histocompatibility complex (MHC) class II and class I molecules, their immunomodulatory properties have been extensively investigated. Moreover, recent studies have shown that EVs may carry and deliver membrane-derived bioactive lipids that play an important function in the immune system and related pathologies, such as prostaglandins, leukotrienes, specialized pro-resolving mediators, and lysophospholipids. EVs protect bioactive lipids from degradation and play a role in the transcellular synthesis of prostaglandins and leukotrienes. Here, we summarized the role of EVs in the regulation of immune response, specifically focusing our attention on the emerging role of EVs as carriers of bioactive lipids, which is important for immune system function.
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Affiliation(s)
- Krizia Sagini
- Department of Chemistry, Biology and Biotechnology, University of Perugia, Via del Giochetto, 06123 Perugia, Italy.
| | - Eva Costanzi
- Department of Chemistry, Biology and Biotechnology, University of Perugia, Via del Giochetto, 06123 Perugia, Italy.
| | - Carla Emiliani
- Department of Chemistry, Biology and Biotechnology, University of Perugia, Via del Giochetto, 06123 Perugia, Italy.
- Centro di Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN), University of Perugia, Via del Giochetto, 06123 Perugia, Italy.
| | - Sandra Buratta
- Department of Chemistry, Biology and Biotechnology, University of Perugia, Via del Giochetto, 06123 Perugia, Italy.
| | - Lorena Urbanelli
- Department of Chemistry, Biology and Biotechnology, University of Perugia, Via del Giochetto, 06123 Perugia, Italy.
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21
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Barros FM, Carneiro F, Machado JC, Melo SA. Exosomes and Immune Response in Cancer: Friends or Foes? Front Immunol 2018; 9:730. [PMID: 29696022 PMCID: PMC5904196 DOI: 10.3389/fimmu.2018.00730] [Citation(s) in RCA: 129] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Accepted: 03/23/2018] [Indexed: 12/20/2022] Open
Abstract
Exosomes are a type of extracellular vesicle whose study has grown exponentially in recent years. This led to the understanding that these structures, far from being inert waste by-products of cellular functioning, are active players in intercellular communication mechanisms, including in the interactions between cancer cells and the immune system. The deep comprehension of the crosstalk between tumors and the immune systems of their hosts has gained more and more importance, as immunotherapeutic techniques have emerged as viable options for several types of cancer. In this review, we present a comprehensive, updated, and elucidative review of the current knowledge on the functions played by the exosomes in this crosstalk. The roles of these vesicles in tumor antigen presentation, immune activation, and immunosuppression are approached as the relevant interactions between exosomes and the complement system. The last section of this review is reserved for the exploration of the results from the first phase I to II clinical trials of exosomes-based cell-free cancer vaccines.
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Affiliation(s)
| | - Fatima Carneiro
- Department of Pathology, Centro Hospitalar de São João, Porto, Portugal.,Department of Pathology, Faculty of Medicine of the University of Porto (FMUP), Porto, Portugal.,Institute for Research Innovation in Health (i3S), Porto, Portugal.,Institute of Molecular Pathology and Immunology of the University of Porto (Ipatimup), Porto, Portugal
| | - Jose C Machado
- Department of Pathology, Faculty of Medicine of the University of Porto (FMUP), Porto, Portugal.,Institute for Research Innovation in Health (i3S), Porto, Portugal.,Institute of Molecular Pathology and Immunology of the University of Porto (Ipatimup), Porto, Portugal
| | - Sónia A Melo
- Department of Pathology, Faculty of Medicine of the University of Porto (FMUP), Porto, Portugal.,Institute for Research Innovation in Health (i3S), Porto, Portugal.,Institute of Molecular Pathology and Immunology of the University of Porto (Ipatimup), Porto, Portugal
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22
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Rigg RA, McCarty OJT, Aslan JE. Heat Shock Protein 70 (Hsp70) in the Regulation of Platelet Function. REGULATION OF HEAT SHOCK PROTEIN RESPONSES 2018. [DOI: 10.1007/978-3-319-74715-6_14] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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23
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Extracellular vesicles from KSHV-infected endothelial cells activate the complement system. Oncotarget 2017; 8:99841-99860. [PMID: 29245944 PMCID: PMC5725135 DOI: 10.18632/oncotarget.21668] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2017] [Accepted: 09/20/2017] [Indexed: 12/21/2022] Open
Abstract
Extracellular vesicles (EVs), released by cells, are associated with cell-to-cell communication and regulate various cellular processes. EVs draw parallels with viruses for their similar structures and functions. Increasing evidences from recent studies indicate that cells infected with viruses release a variety of EVs. Delineating the functions and mechanisms of EVs released during virus infection is essential for understanding the molecular basis of viral infection and replication as well as associated pathogenesis. The most challenging obstacle for these studies is the separation of EVs from viruses. In this study, we successfully isolated the EVs from de novo Kaposi’s sarcoma-associated herpesvirus (KSHV) infected-human endothelial cells during the period between virus entry and production. Intriguingly, a proteomics analysis of these EVs has revealed alterations of the complement system. Additionally, we have discovered that the EVs from KSHV-infected endothelial cells are potent activators of an alternative pathway of the complement system via exploitation of the endogenous C3 complement protein and properdin. Furthermore, we have found that complement activation promotes KSHV persistent latent infection by activating the NF-κB pathway, which enhances the survival of KSHV-infected cells and inhibits viral lytic replication. Our work identifies a novel role of EVs induced by KSHV during de novo infection and the underlying mechanism of complement activation by EVs.
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24
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Isolation of exosomes from whole blood by integrating acoustics and microfluidics. Proc Natl Acad Sci U S A 2017; 114:10584-10589. [PMID: 28923936 DOI: 10.1073/pnas.1709210114] [Citation(s) in RCA: 535] [Impact Index Per Article: 76.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Exosomes are nanoscale extracellular vesicles that play an important role in many biological processes, including intercellular communications, antigen presentation, and the transport of proteins, RNA, and other molecules. Recently there has been significant interest in exosome-related fundamental research, seeking new exosome-based biomarkers for health monitoring and disease diagnoses. Here, we report a separation method based on acoustofluidics (i.e., the integration of acoustics and microfluidics) to isolate exosomes directly from whole blood in a label-free and contact-free manner. This acoustofluidic platform consists of two modules: a microscale cell-removal module that first removes larger blood components, followed by extracellular vesicle subgroup separation in the exosome-isolation module. In the cell-removal module, we demonstrate the isolation of 110-nm particles from a mixture of micro- and nanosized particles with a yield greater than 99%. In the exosome-isolation module, we isolate exosomes from an extracellular vesicle mixture with a purity of 98.4%. Integrating the two acoustofluidic modules onto a single chip, we isolated exosomes from whole blood with a blood cell removal rate of over 99.999%. With its ability to perform rapid, biocompatible, label-free, contact-free, and continuous-flow exosome isolation, the integrated acoustofluidic device offers a unique approach to investigate the role of exosomes in the onset and progression of human diseases with potential applications in health monitoring, medical diagnosis, targeted drug delivery, and personalized medicine.
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25
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Wang G, Wang Z, Zhuang P, Zhao X, Cheng Z. Exosomes carring gag/env of ALV-J possess negative effect on immunocytes. Microb Pathog 2017; 112:142-147. [PMID: 28916320 DOI: 10.1016/j.micpath.2017.09.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Revised: 09/04/2017] [Accepted: 09/11/2017] [Indexed: 01/21/2023]
Abstract
J subgroup avian leukosis virus (ALV-J) is an exogenous retrovirus of avian. A key feature of ALV-J infection is leading to severe immunosuppressive characteristic of diseases. Viral components of retrovirus were reported closely associated with immunosuppression, and several similarities between exosomes and retrovirus preparations have lead to the hypotheses of retrovirus hijacker exosomes pathway. In this study, we purified exosomes from DF-1 cells infected and uninfected by ALV-J. Electron microscopy and mass spectrometry (MS) analysis showed that ALV-J not only increased the production of exosomes from ALV-J infected DF-1 cells (Exo-J) but also stimulated some proteins expression, especially ALV-J components secreted in exosomes. Immunosuppressive domain peptide (ISD) of envelope subunit transmembrane (TM) and gag of ALV-J were secreted in Exo-J. It has been reported that HIV gag was budded from endosome-like domains of the T cell plasma membrane. But env protein was first detected in exosomes from retrovirus infected cells. We found that Exo-J caused negative effects on splenocytes in a dose-dependant manner by flow cytometric analysis. And low dose of Exo-J activated immune activity of splenocytes, while high dose possessed immunosuppressive properties. Interestingly, Exo-J has no significant effects on the immunosuppression induced by ALV-J, and the immunosuppressive effects induced by Exo-J lower than that by ALV-J. Taken together, our data indicated that Exo-J supplied a microenvironment for the replication and transformation of ALV-J.
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Affiliation(s)
- Guihua Wang
- College of Veterinary Medicine, Shandong Agricultural University, Tai'an, PR China; Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, Tai'an, PR China
| | - Zhenzhen Wang
- College of Veterinary Medicine, Shandong Agricultural University, Tai'an, PR China
| | - Pingping Zhuang
- College of Veterinary Medicine, Shandong Agricultural University, Tai'an, PR China
| | - Xiaomin Zhao
- College of Veterinary Medicine, Shandong Agricultural University, Tai'an, PR China; Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, Tai'an, PR China
| | - Ziqiang Cheng
- College of Veterinary Medicine, Shandong Agricultural University, Tai'an, PR China; Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Shandong Agricultural University, Tai'an, PR China.
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26
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Abstract
Exosomes are a kind of cell-released membrane-form structures which contain proteins, lipids, and nucleic acids. These vesicular organelles play a key role in intercellular communication. Numerous experiments demonstrated that tumor-related exosomes (TEXs) can induce immune surveillance in the microenvironment in vivo and in vitro. They can interfere with the maturation of DC cells, impair NK cell activation, induce myeloid-derived suppressor cells, and educate macrophages into protumor phenotype. They can also selectively induce effector T cell apoptosis via Fas/FasL interaction and enhance regulatory T cell proliferation and function by releasing TGF-β. In this review, we focus on the TEX-induced immunosuppression and microenvironment change. Based on the truth that TEXs play crucial roles in suppressing the immune system, studies on modification of exosomes as immunotherapy strategies will also be discussed.
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27
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Diaz G, Wolfe LM, Kruh-Garcia NA, Dobos KM. Changes in the Membrane-Associated Proteins of Exosomes Released from Human Macrophages after Mycobacterium tuberculosis Infection. Sci Rep 2016; 6:37975. [PMID: 27897233 PMCID: PMC5126699 DOI: 10.1038/srep37975] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2016] [Accepted: 10/31/2016] [Indexed: 12/16/2022] Open
Abstract
Tuberculosis (TB) is the deadliest infectious disease worldwide. One obstacle hindering the elimination of TB is our lack of understanding of host-pathogen interactions. Exosomes, naturally loaded with microbial molecules, are circulating markers of TB. Changes in the host protein composition of exosomes from Mycobacterium tuberculosis (Mtb)-infected cells have not been described, can contribute to our understanding of the disease process, and serve as a direct source of biomarkers or as capture targets to enrich for exosomes containing microbial molecules. Here, the protein composition of exosomes from Mtb-infected and uninfected THP-1-derived macrophages was evaluated by tandem-mass-spectrometry and differences in protein abundances were assessed. Our results show that infection with Mtb leads to significant changes in the protein composition of exosomes. Specifically, 41 proteins were significantly more abundant in exosomes from Mtb-infected cells; 63% of these were predicted to be membrane associated. Thus, we used a novel biotinylation strategy to verify protein localization, and confirmed the localization of some of these proteins in the exosomal membrane. Our findings reveal another important scenario where Mtb could be influencing changes in host cells that unveil new features of the host-pathogen interaction and may also be exploited as a source of biomarkers for TB.
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Affiliation(s)
- Gustavo Diaz
- Department of Microbiology, Immunology and Pathology, Colorado State University, Fort Collins, Colorado, United States of America
| | - Lisa M Wolfe
- Proteomics and Metabolomics Facility, Colorado State University, Fort Collins, Colorado, United States of America
| | - Nicole A Kruh-Garcia
- Department of Microbiology, Immunology and Pathology, Colorado State University, Fort Collins, Colorado, United States of America
| | - Karen M Dobos
- Department of Microbiology, Immunology and Pathology, Colorado State University, Fort Collins, Colorado, United States of America
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Batulan Z, Pulakazhi Venu VK, Li Y, Koumbadinga G, Alvarez-Olmedo DG, Shi C, O'Brien ER. Extracellular Release and Signaling by Heat Shock Protein 27: Role in Modifying Vascular Inflammation. Front Immunol 2016; 7:285. [PMID: 27507972 PMCID: PMC4960997 DOI: 10.3389/fimmu.2016.00285] [Citation(s) in RCA: 82] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2016] [Accepted: 07/14/2016] [Indexed: 12/31/2022] Open
Abstract
Heat shock protein 27 (HSP27) is traditionally viewed as an intracellular chaperone protein with anti-apoptotic properties. However, recent data indicate that a number of heat shock proteins, including HSP27, are also found in the extracellular space where they may signal via membrane receptors to alter gene transcription and cellular function. Therefore, there is increasing interest in better understanding how HSP27 is released from cells, its levels and composition in the extracellular space, and the cognate cell membrane receptors involved in effecting cell signaling. In this paper, the knowledge to date, as well as some emerging paradigms about the extracellular function of HSP27 is presented. Of particular interest is the role of HSP27 in attenuating atherogenesis by modifying lipid uptake and inflammation in the plaque. Moreover, the abundance of HSP27 in serum is an emerging new biomarker for ischemic events. Finally, HSP27 replacement therapy may represent a novel therapeutic opportunity for chronic inflammatory disorders, such as atherosclerosis.
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Affiliation(s)
- Zarah Batulan
- Vascular Biology Laboratory, Health Research Innovation Centre, Libin Cardiovascular Institute of Alberta, University of Calgary Cumming School of Medicine , Calgary, AB , Canada
| | - Vivek Krishna Pulakazhi Venu
- Vascular Biology Laboratory, Health Research Innovation Centre, Libin Cardiovascular Institute of Alberta, University of Calgary Cumming School of Medicine , Calgary, AB , Canada
| | - Yumei Li
- Vascular Biology Laboratory, Health Research Innovation Centre, Libin Cardiovascular Institute of Alberta, University of Calgary Cumming School of Medicine , Calgary, AB , Canada
| | - Geremy Koumbadinga
- Vascular Biology Laboratory, Health Research Innovation Centre, Libin Cardiovascular Institute of Alberta, University of Calgary Cumming School of Medicine , Calgary, AB , Canada
| | - Daiana Gisela Alvarez-Olmedo
- Oncology Laboratory, Institute for Experimental Medicine and Biology of Cuyo (IMBECU), CCT CONICET , Mendoza , Argentina
| | - Chunhua Shi
- Vascular Biology Laboratory, Health Research Innovation Centre, Libin Cardiovascular Institute of Alberta, University of Calgary Cumming School of Medicine , Calgary, AB , Canada
| | - Edward R O'Brien
- Vascular Biology Laboratory, Health Research Innovation Centre, Libin Cardiovascular Institute of Alberta, University of Calgary Cumming School of Medicine , Calgary, AB , Canada
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Zhang X, Pei Z, Chen J, Ji C, Xu J, Zhang X, Wang J. Exosomes for Immunoregulation and Therapeutic Intervention in Cancer. J Cancer 2016; 7:1081-7. [PMID: 27326251 PMCID: PMC4911875 DOI: 10.7150/jca.14866] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2016] [Accepted: 04/26/2016] [Indexed: 02/06/2023] Open
Abstract
Exosomes, as a subset of extracellular vesicles, function as a mode of intercellular communication and molecular transfer, and facilitate the direct extracellular transfer of proteins, lipids, and miRNAs/mRNAs/DNAs between cells. Cancers have adapted exosomes and related microvesicles as a pathway that can suppress the immune system and establish a fertile local and distant environment to support neoplastic growth, invasion, and metastasis; these tumor-derived exosomes affect immunoregulation mechanisms, including immune activation and immune suppression. Immune cell-derived exosomes can modulate the immune response in cancer, which supports the belief that these membranous vesicles are immunotherapeutic reagents. In this review, we discuss the recent advances in the cancer immunotherapy, roles of exosomes in cancer, immunoregulation of tumor-derived exosomes, and immunomodulation by immune cell-derived exosomes. The topics covered here highlight novel insights into the development of efficient exosome-based cancer vaccines for cancer therapeutic intervention.
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Affiliation(s)
- Xuan Zhang
- 1. Scientific Research Center, Shanghai Public Health Clinical Center, 2901 Caolang Road, Jinshan District, Shanghai 201508, China
| | - Zenglin Pei
- 1. Scientific Research Center, Shanghai Public Health Clinical Center, 2901 Caolang Road, Jinshan District, Shanghai 201508, China
| | - Jinyun Chen
- 2. Departments of Epidemiology, The University of Texas M.D. Anderson Cancer Center, Houston, TX 770030, USA
| | - Chunxia Ji
- 1. Scientific Research Center, Shanghai Public Health Clinical Center, 2901 Caolang Road, Jinshan District, Shanghai 201508, China
| | - Jianqing Xu
- 1. Scientific Research Center, Shanghai Public Health Clinical Center, 2901 Caolang Road, Jinshan District, Shanghai 201508, China
| | - Xiaoyan Zhang
- 1. Scientific Research Center, Shanghai Public Health Clinical Center, 2901 Caolang Road, Jinshan District, Shanghai 201508, China
| | - Jin Wang
- 1. Scientific Research Center, Shanghai Public Health Clinical Center, 2901 Caolang Road, Jinshan District, Shanghai 201508, China
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Kim D, Kim TH, Wu G, Park BK, Ha JH, Kim YS, Lee K, Lee Y, Kwon HJ. Extracellular Release of CD11b by TLR9 Stimulation in Macrophages. PLoS One 2016; 11:e0150677. [PMID: 26954233 PMCID: PMC4783063 DOI: 10.1371/journal.pone.0150677] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2015] [Accepted: 02/16/2016] [Indexed: 12/24/2022] Open
Abstract
CpG-DNA upregulates the expression of pro-inflammatory cytokines, chemokines and cell surface markers. Investigators have shown that CD11b (integrin αM) regulates TLR-triggered inflammatory responses in the macrophages and dendritic cells. Therefore, we aimed to identify the effects of CpG-DNA on the expression of CD11b in macrophages. There was no significant change in surface expression of CD11b after CpG-DNA stimulation. However, CD11b was released into culture supernatants after stimulation with phosphorothioate-backbone modified CpG-DNA such as PS-ODN CpG-DNA 1826(S). In contrast, MB-ODN 4531 and non-CpG-DNA control (regardless of backbone type and liposome-encapsulation) failed to induce release of CD11b. Therefore, the context of the CpG-DNA sequence and phosphorothioate backbone modification may regulate the effects of CpG-DNA on CD11b release. Based on inhibitor studies, CD11b release is mediated by p38 MAP kinase activation, but not by the PI3K and NF-κB activation. CD11b release is mediated by lysosomal degradation and by vacuolar acidification in response to CpG-DNA stimulation. The amount of CD11b in the exosome precipitant was significantly increased by CpG-DNA stimulation in vivo and in vitro depending on TLR9. Our observations perhaps give more insight into understanding of the mechanisms involved in CpG-DNA-induced immunomodulation in the innate immunity.
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Affiliation(s)
- Dongbum Kim
- Center for Medical Science Research, Hallym University College of Medicine, Chuncheon, Republic of Korea
| | - Te Ha Kim
- Department of Microbiology, Hallym University College of Medicine, Chuncheon, Republic of Korea
| | - Guang Wu
- Center for Medical Science Research, Hallym University College of Medicine, Chuncheon, Republic of Korea
| | - Byoung Kwon Park
- Center for Medical Science Research, Hallym University College of Medicine, Chuncheon, Republic of Korea
| | - Ji-Hee Ha
- Department of Molecular Science and Technology, Ajou University, Suwon, Republic of Korea
| | - Yong-Sung Kim
- Department of Molecular Science and Technology, Ajou University, Suwon, Republic of Korea
| | - Keunwook Lee
- Department of Biomedical Science, College of Natural Science, Hallym University, Chuncheon, Republic of Korea
| | - Younghee Lee
- Department of Biochemistry, College of Natural Sciences, Chungbuk National University, Cheongju, Republic of Korea
| | - Hyung-Joo Kwon
- Center for Medical Science Research, Hallym University College of Medicine, Chuncheon, Republic of Korea
- Department of Microbiology, Hallym University College of Medicine, Chuncheon, Republic of Korea
- * E-mail:
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Rigg RA, Healy LD, Nowak MS, Mallet J, Thierheimer MLD, Pang J, McCarty OJT, Aslan JE. Heat shock protein 70 regulates platelet integrin activation, granule secretion and aggregation. Am J Physiol Cell Physiol 2016; 310:C568-75. [PMID: 26764050 DOI: 10.1152/ajpcell.00362.2015] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Accepted: 01/10/2016] [Indexed: 12/26/2022]
Abstract
Molecular chaperones that support protein quality control, including heat shock protein 70 (Hsp70), participate in diverse aspects of cellular and physiological function. Recent studies have reported roles for specific chaperone activities in blood platelets in maintaining hemostasis; however, the functions of Hsp70 in platelet physiology remain uninvestigated. Here we characterize roles for Hsp70 activity in platelet activation and function. In vitro biochemical, microscopy, flow cytometry, and aggregometry assays of platelet function, as well as ex vivo analyses of platelet aggregate formation in whole blood under shear, were carried out under Hsp70-inhibited conditions. Inhibition of platelet Hsp70 blocked platelet aggregation and granule secretion in response to collagen-related peptide (CRP), which engages the immunoreceptor tyrosine-based activation motif-bearing collagen receptor glycoprotein VI (GPVI)-Fc receptor-γ chain complex. Hsp70 inhibition also reduced platelet integrin-αIIbβ3 activation downstream of GPVI, as Hsp70-inhibited platelets showed reduced PAC-1 and fibrinogen binding. Ex vivo, pharmacological inhibition of Hsp70 in human whole blood prevented the formation of platelet aggregates on collagen under shear. Biochemical studies supported a role for Hsp70 in maintaining the assembly of the linker for activation of T cells signalosome, which couples GPVI-initiated signaling to integrin activation, secretion, and platelet function. Together, our results suggest that Hsp70 regulates platelet activation and function by supporting linker for activation of T cells-associated signaling events downstream of platelet GPVI engagement, suggesting a role for Hsp70 in the intracellular organization of signaling systems that mediate platelet secretion, "inside-out" activation of platelet integrin-αIIbβ3, platelet-platelet aggregation, and, ultimately, hemostatic plug and thrombus formation.
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Affiliation(s)
- Rachel A Rigg
- Department of Biomedical Engineering, School of Medicine, Oregon Health & Science University, Portland, Oregon
| | - Laura D Healy
- Department of Cell, Developmental & Cancer Biology, School of Medicine, Oregon Health & Science University, Portland, Oregon
| | - Marie S Nowak
- Department of Biomedical Engineering, School of Medicine, Oregon Health & Science University, Portland, Oregon; Department of Medical Physics, Universite des Sciences et Technologies de Lille, Villeneuve d'Ascq, France; and
| | - Jérémy Mallet
- Department of Medical Physics, Universite des Sciences et Technologies de Lille, Villeneuve d'Ascq, France; and
| | - Marisa L D Thierheimer
- Department of Biomedical Engineering, School of Medicine, Oregon Health & Science University, Portland, Oregon; School of Chemical, Biological, and Environmental Engineering, Oregon State University, Corvallis, Oregon
| | - Jiaqing Pang
- Department of Biomedical Engineering, School of Medicine, Oregon Health & Science University, Portland, Oregon
| | - Owen J T McCarty
- Department of Biomedical Engineering, School of Medicine, Oregon Health & Science University, Portland, Oregon; Department of Cell, Developmental & Cancer Biology, School of Medicine, Oregon Health & Science University, Portland, Oregon; Division of Hematology and Medical Oncology, School of Medicine, Oregon Health & Science University, Portland, Oregon
| | - Joseph E Aslan
- Knight Cardiovascular Institute, School of Medicine, Oregon Health & Science University, Portland, Oregon;
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Xue B, Nie J, Wang X, DuBois DC, Jusko WJ, Almon RR. Effects of High Fat Feeding on Adipose Tissue Gene Expression in Diabetic Goto-Kakizaki Rats. GENE REGULATION AND SYSTEMS BIOLOGY 2015; 9:15-26. [PMID: 26309393 PMCID: PMC4533846 DOI: 10.4137/grsb.s25172] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/23/2015] [Revised: 05/24/2015] [Accepted: 06/17/2015] [Indexed: 12/15/2022]
Abstract
Development and progression of type 2 diabetes is a complex interaction between genetics and environmental influences. High dietary fat is one environmental factor that is conducive to the development of insulin-resistant diabetes. In the present report, we compare the responses of lean poly-genic, diabetic Goto-Kakizaki (GK) rats to those of control Wistar-Kyoto (WKY) rats fed a high fat diet from weaning to 20 weeks of age. This comparison included a wide array of physiological measurements along with gene expression profiling of abdominal adipose tissue using Affymetrix gene array chips. Animals of both strains fed a high fat diet or a normal diet were sacrificed at 4, 8, 12, 16, and 20 weeks for this comparison. The microarray analysis revealed that the two strains developed different adaptations to increased dietary fat. WKY rats decrease fatty acid synthesis and lipogenic processes whereas GK rats increase lipid elimination. However, on both diets the major differences between the two strains remained essentially the same. Specifically relative to the WKY strain, the GK strain showed lipoatrophy, chronic inflammation, and insulin resistance.
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Affiliation(s)
- Bai Xue
- Department of Biological Sciences, State University of New York at Buffalo, Buffalo, NY, USA
| | - Jing Nie
- Department of Biological Sciences, State University of New York at Buffalo, Buffalo, NY, USA
| | - Xi Wang
- Department of Biological Sciences, State University of New York at Buffalo, Buffalo, NY, USA
| | - Debra C DuBois
- Department of Biological Sciences, State University of New York at Buffalo, Buffalo, NY, USA. ; Department of Pharmaceutical Sciences, State University of New York at Buffalo, Buffalo, NY, USA
| | - William J Jusko
- Department of Pharmaceutical Sciences, State University of New York at Buffalo, Buffalo, NY, USA. ; New York State Center of Excellence in Bioinformatics and Life Sciences, Buffalo, NY, USA
| | - Richard R Almon
- Department of Biological Sciences, State University of New York at Buffalo, Buffalo, NY, USA. ; Department of Pharmaceutical Sciences, State University of New York at Buffalo, Buffalo, NY, USA. ; New York State Center of Excellence in Bioinformatics and Life Sciences, Buffalo, NY, USA
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Taylor DD, Gercel-Taylor C. Exosome platform for diagnosis and monitoring of traumatic brain injury. Philos Trans R Soc Lond B Biol Sci 2015; 369:rstb.2013.0503. [PMID: 25135964 DOI: 10.1098/rstb.2013.0503] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
We have previously demonstrated the release of membranous structures by cells into their extracellular environment, which are termed exosomes, microvesicles or extracellular vesicles depending on specific characteristics, including size, composition and biogenesis pathway. With activation, injury, stress, transformation or infection, cells express proteins and RNAs associated with the cellular responses to these events. The exosomes released by these cells can exhibit an array of proteins, lipids and nucleic acids linked to these physiologic events. This review focuses on exosomes associated with traumatic brain injury, which may be both diagnostic and a causative factor in the progression of the injury. Based on current data, exosomes play essential roles as conveyers of intercellular communication and mediators of many of the pathological conditions associated with development, progression and therapeutic failures and cellular stress in a variety of pathologic conditions. These extracellular vesicles express components responsible for angiogenesis promotion, stromal remodelling, signal pathway activation through growth factor/receptor transfer, chemoresistance, immunologic activation and genetic exchange. These circulating exosomes not only represent a central mediator of the pro-inflammatory microenvironment linked with secondary brain injury, but their presence in the peripheral circulation may serve as a surrogate for biopsies, enabling real-time diagnosis and monitoring of neurodegenerative progression.
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Affiliation(s)
- Douglas D Taylor
- Exosome Sciences, Inc., 11 Deer Park Drive, Suite 103, Monmouth Junction, NJ 08852, USA
| | - Cicek Gercel-Taylor
- Exosome Sciences, Inc., 11 Deer Park Drive, Suite 103, Monmouth Junction, NJ 08852, USA
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Wang J, Wang Z, Mo Y, Zeng Z, Wei P, Li T. Effect of hyperthermic CO 2-treated dendritic cell-derived exosomes on the human gastric cancer AGS cell line. Oncol Lett 2015; 10:71-76. [PMID: 26170979 DOI: 10.3892/ol.2015.3155] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2014] [Accepted: 03/19/2015] [Indexed: 11/06/2022] Open
Abstract
The aim of the present study was to determine the antitumor effects of hyperthermic CO2 (HT-CO2)-treated dendritic cell (DC)-derived exosomes (Dex) on human gastric cancer AGS cells. Mouse-derived DCs were incubated in HT-CO2 at 43°C for 4 h. The exosomes in the cell culture supernatant were then isolated. Cell proliferation was analyzed using the cell counting kit-8 (CCK-8) assay. Cell apoptosis was observed using flow cytometry, Hoechst 33258 staining and the analysis of caspase-3 activity. In addition, the proliferation of tumor cells was evaluated in xenotransplant nude mice. HT-CO2 markedly inhibited cell proliferation, as assessed by the CCK-8 assay, and also induced apoptosis in a time-dependent manner, as demonstrated by Annexin V/propidium iodide flow cytometry, caspase-3 activity and morphological analysis using Hoechst fluorescent dye. It was also revealed that HT-CO2-treated Dex decreased the expression of heat shock protein 70 and inhibited tumor growth in nude mice. In conclusion, HT-CO2 exerted an efficacious immune-enhancing effect on DCs. These findings may provide a novel strategy for the elimination of free cancer cells during laparoscopic resection. However, the potential cellular mechanisms underlying this process require further investigation.
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Affiliation(s)
- Jinlin Wang
- Department of General Surgery, Dongguan People's Hospital, Dongguan, Guangdong 523059, P.R. China
| | - Zhiyong Wang
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical College, Dongguan, Guangdong 523808, P.R. China
| | - Yanxia Mo
- Department of General Surgery, Dongguan People's Hospital, Dongguan, Guangdong 523059, P.R. China
| | - Zhaohui Zeng
- Department of General Surgery, Dongguan People's Hospital, Dongguan, Guangdong 523059, P.R. China
| | - Pei Wei
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical College, Dongguan, Guangdong 523808, P.R. China
| | - Tao Li
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical College, Dongguan, Guangdong 523808, P.R. China
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35
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Exosomes and their roles in immune regulation and cancer. Semin Cell Dev Biol 2015; 40:72-81. [PMID: 25724562 DOI: 10.1016/j.semcdb.2015.02.009] [Citation(s) in RCA: 441] [Impact Index Per Article: 49.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2014] [Revised: 02/11/2015] [Accepted: 02/18/2015] [Indexed: 02/06/2023]
Abstract
Exosomes, a subset of extracellular vesicles (EVs), function as a mode of intercellular communication and molecular transfer. Exosomes facilitate the direct extracellular transfer of proteins, lipids, and miRNA/mRNA/DNAs between cells in vitro and in vivo. The immunological activities of exosomes affect immunoregulation mechanisms including modulating antigen presentation, immune activation, immune suppression, immune surveillance, and intercellular communication. Besides immune cells, cancer cells secrete immunologically active exosomes that influence both physiological and pathological processes. The observation that exosomes isolated from immune cells such as dendritic cells (DCs) modulate the immune response has enforced the way these membranous vesicles are being considered as potential immunotherapeutic reagents. Indeed, tumour- and immune cell-derived exosomes have been shown to carry tumour antigens and promote immunity, leading to eradication of established tumours by CD8(+) T cells and CD4(+) T cells, as well as directly suppressing tumour growth and resistance to malignant tumour development. Further understanding of these areas of exosome biology, and especially of molecular mechanisms involved in immune cell targeting, interaction and manipulation, is likely to provide significant insights into immunorecognition and therapeutic intervention. Here, we review the emerging roles of exosomes in immune regulation and the therapeutic potential in cancer.
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Tulapurkar ME, Ramarathnam A, Hasday JD, Singh IS. Bacterial lipopolysaccharide augments febrile-range hyperthermia-induced heat shock protein 70 expression and extracellular release in human THP1 cells. PLoS One 2015; 10:e0118010. [PMID: 25659128 PMCID: PMC4320107 DOI: 10.1371/journal.pone.0118010] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2014] [Accepted: 01/06/2015] [Indexed: 01/17/2023] Open
Abstract
Sepsis, a devastating and often lethal complication of severe infection, is characterized by fever and dysregulated inflammation. While infections activate the inflammatory response in part through Toll-like receptors (TLRs), fever can partially activate the heat shock response with generation of heat shock proteins (HSPs). Since extracellular HSPs, especially HSP70 (eHSP70), are proinflammatory TLR agonists, we investigated how exposure to the TLR4 agonist, bacterial lipopolysaccharide (LPS) and febrile range hyperthermia (FRH; 39.5°C) modify HSP70 expression and extracellular release. Using differentiated THP1 cells, we found that concurrent exposure to FRH and LPS as well as TLR2 and TLR3 agonists synergized to activate expression of inducible HSP72 (HSPA1A) mRNA and protein via a p38 MAP kinase-requiring mechanism. Treatment with LPS for 6 h stimulated eHSP70 release; levels of eHSP70 released at 39.5°C were higher than at 37°C roughly paralleling the increase in intracellular HSP72 in the 39.5°C cells. By contrast, 6 h exposure to FRH in the absence of LPS failed to promote eHSP70 release. Release of eHSP70 by LPS-treated THP1 cells was inhibited by glibenclamide, but not brefeldin, indicating that eHSP70 secretion occurred via a non-classical protein secretory mechanism. Analysis of eHSP70 levels in exosomes and exosome-depleted culture supernatants from LPS-treated THP1 cells using ELISA demonstrated similar eHSP70 levels in unfractionated and exosome-depleted culture supernatants, indicating that LPS-stimulated eHSP70 release did not occur via the exosome pathway. Immunoblot analysis of the exosome fraction of culture supernatants from these cells showed constitutive HSC70 (HSPA8) to be the predominant HSP70 family member present in exosomes. In summary, we have shown that LPS stimulates macrophages to secrete inducible HSP72 via a non-classical non-exosomal pathway while synergizing with FRH exposure to increase both intracellular and secreted levels of inducible HSP72. The impact of increased macrophage intracellular HSP70 levels and augmented secretion of proinflammatory eHSP70 in the febrile, infected patient remains to be elucidated.
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Affiliation(s)
- Mohan E. Tulapurkar
- Division of Pulmonary and Critical Care, Department of Medicine, University of Maryland School of Medicine, Baltimore, Maryland, United States of America
| | - Aparna Ramarathnam
- Division of Pulmonary and Critical Care, Department of Medicine, University of Maryland School of Medicine, Baltimore, Maryland, United States of America
| | - Jeffrey D. Hasday
- Division of Pulmonary and Critical Care, Department of Medicine, University of Maryland School of Medicine, Baltimore, Maryland, United States of America
- Cytokine Core Laboratory, University of Maryland School of Medicine, Baltimore, Maryland, United States of America
- Research Services of the Baltimore Veteran Affairs Medical Center, Baltimore, Maryland, United States of America
| | - Ishwar S. Singh
- Division of Pulmonary and Critical Care, Department of Medicine, University of Maryland School of Medicine, Baltimore, Maryland, United States of America
- Research Services of the Baltimore Veteran Affairs Medical Center, Baltimore, Maryland, United States of America
- * E-mail:
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Genomic analysis in active surveillance: predicting high-risk disease using tissue biomarkers. Curr Opin Urol 2014; 24:303-10. [PMID: 24625431 DOI: 10.1097/mou.0000000000000051] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
PURPOSE OF REVIEW For patients newly diagnosed with prostate cancer, the most significant question is whether the 'truly malignant' disease has been identified. This review will provide an overview of current prostate cancer genomic and biomarker discovery - validation strategies geared towards identifying aggressive, clinically significant disease at the time of diagnosis. RECENT FINDINGS Based on recent findings the prostate cancer aggressive disease phenotype develops as a result of mutations (TP53, PTEN), structural events (TMPRSS2-ETS), epigenetic changes (EZH2, DAB2IP, histone alteration), and transcriptional modifications (SChLAP, PCAT-1). Copy number variability and dysregulation of specific pathways including androgen receptor signaling, PTEN/PAKT and TGF-β continue to play an important role in invasion and metastasis. SUMMARY Given the current challenges for applying prostate cancer genomics to clinical management, this review will incorporate some of the current novel genomic approaches and techniques including systems-based precise pathology platforms, and the role of fluid-based assays, notably, exosomes and circulating tumor cells (liquid biopsy), as tools for future diagnostic-treatment algorithms.
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38
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Mechanisms of intimate and long-distance cross-talk between glioma and myeloid cells: how to break a vicious cycle. Biochim Biophys Acta Rev Cancer 2014; 1846:560-75. [PMID: 25453365 DOI: 10.1016/j.bbcan.2014.10.003] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2014] [Revised: 10/12/2014] [Accepted: 10/13/2014] [Indexed: 12/16/2022]
Abstract
Glioma-associated microglia and macrophages (GAMs) and myeloid-derived suppressor cells (MDSCs) condition the glioma microenvironment to generate an immunosuppressed niche for tumour expansion. This immunosuppressive microenvironment is considered to be shaped through a complex multi-step interactive process between glioma cells, GAMs and MDSCs. Glioma cells recruit GAMs and MDSCs to the tumour site and block their maturation. Glioma cell-derived factors subsequently skew these cells towards an immunosuppressive, tumour-promoting phenotype. Finally, GAMs and MDSCs enhance immune suppression in the glioma microenvironment and promote glioma growth, invasiveness, and neovascularization. The local and distant cross-talk between glioma cells and GAMs and MDSCs is regulated by a plethora of soluble proteins and cell surface-bound factors, and possibly via extracellular vesicles and platelets. Importantly, GAMs and MDSCs have been reported to impair the efficacy of glioma therapy, in particular immunotherapeutic approaches. Therefore, advancing our understanding of the function of GAMs and MDSCs in brain tumours and targeted intervention of their immunosuppressive function may benefit the treatment of glioma.
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Pocsfalvi G, Stanly C, Vilasi A, Fiume I, Tatè R, Capasso G. Employing extracellular vesicles for non-invasive renal monitoring: A captivating prospect. World J Clin Urol 2014; 3:66-80. [DOI: 10.5410/wjcu.v3.i2.66] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2014] [Revised: 06/09/2014] [Accepted: 06/27/2014] [Indexed: 02/06/2023] Open
Abstract
Extracellular vesicles (EVs) are fascinating nano-sized subjects extensively studied over the recent years across several disparate disciplines. EVs are endlessly secreted into the extracellular microenvironment by most cell types under physiological and pathological conditions. EVs encompass a variety of molecular constituents from their cell of origin, such as lipids, cell specific proteins and RNAs, thus constituting an informative resource for studying molecular events at the cellular level. There are three main classes of EVs classified based on their size, content, biogenesis and biological functions: exosomes, shedding microvesicles and apoptotic bodies. Besides cell culture supernatants, biological fluids have also been shown to contain different types of EVs. Amongst the various body fluids, the study of urinary extracellular vesicles (uEVs) as a source of candidate biomarkers gained much attention, since: (1) urine can be non-invasively collected in large amounts; and (2) the isolated uEVs are stable for a relatively long period of time. Here, we review the important aspects of urinary extracellular vesicles which are fast gaining attention as a promising future tool for the non-invasive monitoring of urinary tract. Recent advancements in the purification and analysis of uEVs and collection of their constituents in rapidly developing public databases, allow their better exploitation in molecular diagnostics. As a result, a growing number of studies have shown that changes in expression profile at the RNA and/or protein levels of uEVs reveal the molecular architectures of underlying key pathophysiological events of different clinically important diseases with kidney involvement.
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40
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Gupta A, Pulliam L. Exosomes as mediators of neuroinflammation. J Neuroinflammation 2014; 11:68. [PMID: 24694258 PMCID: PMC3994210 DOI: 10.1186/1742-2094-11-68] [Citation(s) in RCA: 227] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2014] [Accepted: 03/17/2014] [Indexed: 12/13/2022] Open
Abstract
Exosomes are membrane-bound nanovesicles that are shed by cells of various lineages under normal as well as pathological conditions. Previously thought to be ‘extracellular debris’, exosomes have recently generated immense interest following their discovery as mediators of intercellular communication by delivering functional proteins, mRNA transcripts as well as miRNAs to recipient cells. Although suggested to primarily serve as signaling organelles which also remove unwanted cellular components in the brain, accumulating evidence suggests that exosomes can also significantly contribute to the development of several neuropathologies. Toxic forms of aggregated proteins such as α-synuclein, amyloid β and prions, that are responsible for the development of Parkinson’s disease, Alzheimer’s disease and Creutzfeldt-Jacob disease (CJD) respectively, have been shown to get effectively packaged into exosomes and spread from one cell to another, initiating an inflammatory cascade. In addition, exosomes secreted by resident brain cells in response to pathogenic stimuli such as viral proteins can also influence bystander cells by the transfer of dysregulated miRNAs that suppress the expression of essential genes in the recipient cells. Given the relevance of exosomes in brain communication and neuropathogenesis, novel therapeutic strategies are now being developed that exploit the biology of these vesicles to deliver anti-inflammatory molecules to the CNS. Exosomes may alter the way we think about brain disorders and their treatments.
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Affiliation(s)
| | - Lynn Pulliam
- Departments of Laboratory Medicine and Medicine, San Francisco and Veterans Affairs Medical Center, University of California, 4150 Clement St (113A), San Francisco, CA 94121, USA.
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Oltra E. Relevance of splicing on tumor-released exosome landscape: implications in cancer therapeutics. Front Endocrinol (Lausanne) 2014; 5:194. [PMID: 25429285 PMCID: PMC4228196 DOI: 10.3389/fendo.2014.00194] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2014] [Accepted: 10/30/2014] [Indexed: 12/21/2022] Open
Affiliation(s)
- Elisa Oltra
- Facultad de Medicina, Universidad Católica de Valencia “San Vicente Mártir”, Valencia, Spain
- *Correspondence:
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Mesenchymal stem cell derived microvesicles: Trophic shuttles for enhancement of sperm quality parameters. Reprod Toxicol 2013; 42:78-84. [DOI: 10.1016/j.reprotox.2013.07.024] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2013] [Revised: 07/14/2013] [Accepted: 07/31/2013] [Indexed: 12/22/2022]
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Leite RB, Milan M, Coppe A, Bortoluzzi S, dos Anjos A, Reinhardt R, Saavedra C, Patarnello T, Cancela ML, Bargelloni L. mRNA-Seq and microarray development for the Grooved Carpet shell clam, Ruditapes decussatus: a functional approach to unravel host-parasite interaction. BMC Genomics 2013; 14:741. [PMID: 24168212 PMCID: PMC4007648 DOI: 10.1186/1471-2164-14-741] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2012] [Accepted: 09/26/2013] [Indexed: 11/10/2022] Open
Abstract
Background The Grooved Carpet shell clam Ruditapes decussatus is the autochthonous European clam and the most appreciated from a gastronomic and economic point of view. The production is in decline due to several factors such as Perkinsiosis and habitat invasion and competition by the introduced exotic species, the manila clam Ruditapes philippinarum. After we sequenced R. decussatus transcriptome we have designed an oligo microarray capable of contributing to provide some clues on molecular response of the clam to Perkinsiosis. Results A database consisting of 41,119 unique transcripts was constructed, of which 12,479 (30.3%) were annotated by similarity. An oligo-DNA microarray platform was then designed and applied to profile gene expression in R. decussatus heavily infected by Perkinsus olseni. Functional annotation of differentially expressed genes between those two conditionswas performed by gene set enrichment analysis. As expected, microarrays unveil genes related with stress/infectious agents such as hydrolases, proteases and others. The extensive role of innate immune system was also analyzed and effect of parasitosis upon expression of important molecules such as lectins reviewed. Conclusions This study represents a first attempt to characterize Ruditapes decussatus transcriptome, an important marine resource for the European aquaculture. The trancriptome sequencing and consequent annotation will increase the available tools and resources for this specie, introducing the possibility of high throughput experiments such as microarrays analysis. In this specific case microarray approach was used to unveil some important aspects of host-parasite interaction between the Carpet shell clam and Perkinsus, two non-model species, highlighting some genes associated with this interaction. Ample information was obtained to identify biological processes significantly enriched among differentially expressed genes in Perkinsus infected versus non-infected gills. An overview on the genes related with the immune system on R. decussatus transcriptome is also reported.
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Affiliation(s)
- Ricardo B Leite
- CCMAR- Center of Marine Sciences/University of Algarve, Campus de Gambelas, 8005-139 Faro, Portugal.
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Abstract
PURPOSE OF REVIEW For men newly diagnosed with prostate cancer, there are limited tools to understand the risk of disease progression and guide the treatment decision process. We will provide an overview of current prostate cancer biomarker discovery and validation strategies that are geared toward identifying aggressive, clinically significant disease at the time of diagnosis. RECENT FINDINGS The prostate gland exhibits multiple genetic events leading to both latent and clinically significant prostate cancer. Recent evidence from clinical translational studies has implicated the role of aneuploidy and copy-number variation as significant predictors of aggressive disease. Furthermore, the regulation of NKX3.1 by Pim-1 has provided a novel mechanism for the balance between indolence and disease course. Although promising, there are no routine clinically used tissue-based biomarkers for identifying risk of prostate cancer progression at diagnosis. The TMPRSS2-ERG gene fusion has provided insight into the early development of prostate cancer but has not been unequivocally associated with aggressive disease. Importantly, the only platform relying on intact tissue profiles is the systems pathology analysis program that includes histomorphometry and quantitative multiplex biomarker assessment (including the evaluation of the prostate cancer stem cell) to construct prognostic algorithms for pretreatment and post-treatment assessment. SUMMARY Our objective for this review was to explore the effective use of prostate tissue samples, including fluids, to identify relevant markers of clinically significant disease. We believe that the inherent molecular heterogeneity in prostate cancer requires a multimodal approach, in the context of a systems pathology platform, to create the personalized tools for future diagnostic treatment algorithms.
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Taylor DD, Gercel-Taylor C. The origin, function, and diagnostic potential of RNA within extracellular vesicles present in human biological fluids. Front Genet 2013; 4:142. [PMID: 23908664 PMCID: PMC3726994 DOI: 10.3389/fgene.2013.00142] [Citation(s) in RCA: 107] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2013] [Accepted: 07/11/2013] [Indexed: 12/16/2022] Open
Abstract
We have previously demonstrated that tumor cells release membranous structures into their extracellular environment, which are termed exosomes, microvesicles or extracellular vesicles depending on specific characteristics, including size, composition and biogenesis pathway. These cell-derived vesicles can exhibit an array of proteins, lipids and nucleic acids derived from the originating tumor. This review focuses of the transcriptome (RNA) of these extracellular vesicles. Based on current data, these vesicular components play essential roles as conveyers of intercellular communication and mediators of many of the pathological conditions associated with cancer development, progression and therapeutic failures. These extracellular vesicles express components responsible for angiogenesis promotion, stromal remodeling, signal pathway activation through growth factor/receptor transfer, chemoresistance, and genetic exchange. These tumor-derived extracellular vesicles not only to represent a central mediator of the tumor microenvironment, but their presence in the peripheral circulation may serve as a surrogate for tumor biopsies, enabling real-time diagnosis and disease monitoring.
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Affiliation(s)
- Douglas D Taylor
- Department of Obstetrics, Gynecology, and Women's Health, University of Louisville School of Medicine Louisville, KY, USA
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Ariza ME, Rivailler P, Glaser R, Chen M, Williams MV. Epstein-Barr virus encoded dUTPase containing exosomes modulate innate and adaptive immune responses in human dendritic cells and peripheral blood mononuclear cells. PLoS One 2013; 8:e69827. [PMID: 23894549 PMCID: PMC3718799 DOI: 10.1371/journal.pone.0069827] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2013] [Accepted: 06/15/2013] [Indexed: 12/11/2022] Open
Abstract
We have recently demonstrated that Epstein-Barr virus (EBV)-encoded deoxyuridine triphosphate nucleotidohydrolase (dUTPase) modulates innate immunity in human primary monocyte-derived macrophages through toll-like receptor (TLR) 2 leading to NF-κB activation and the production of pro-inflammatory cytokines. Our previous depletion studies indicated that dendritic cells (DCs) may also be a target of the EBV-encoded dUTPase. However, the role of EBV-encoded dUTPase in DC activation/function and its potential contribution to the inflammatory cellular milieu characteristic of EBV-associated diseases remains poorly understood. In the present study, we demonstrate that EBV-encoded dUTPase significantly altered the expression of genes involved in oncogenesis, inflammation and viral defense mechanisms in human primary DCs by microarray analysis. Proteome array studies revealed that EBV-encoded dUTPase modulates DC immune responses by inducing the secretion of pro-inflammatory TH1/TH17 cytokines. More importantly, we demonstrate that EBV-encoded dUTPase is secreted in exosomes from chemically induced Raji cells at sufficient levels to induce NF-κB activation and cytokine secretion in primary DCs and peripheral blood mononuclear cells (PBMCs). Interestingly, the production of pro-inflammatory cytokines in DCs and PBMCs was TLR2-dependent. Together these findings suggest that the EBV-encoded dUTPase may act as an intercellular signaling molecule capable of modulating the cellular microenvironment and thus, it may be important in the pathophysiology of EBV related diseases.
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Affiliation(s)
- Maria Eugenia Ariza
- Department of Molecular Virology, Immunology, and Medical Genetics, The Ohio State University College of Medicine, Columbus, Ohio, USA.
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Narayanan A, Iordanskiy S, Das R, Van Duyne R, Santos S, Jaworski E, Guendel I, Sampey G, Dalby E, Iglesias-Ussel M, Popratiloff A, Hakami R, Kehn-Hall K, Young M, Subra C, Gilbert C, Bailey C, Romerio F, Kashanchi F. Exosomes derived from HIV-1-infected cells contain trans-activation response element RNA. J Biol Chem 2013; 288:20014-33. [PMID: 23661700 PMCID: PMC3707700 DOI: 10.1074/jbc.m112.438895] [Citation(s) in RCA: 222] [Impact Index Per Article: 20.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2012] [Revised: 05/03/2013] [Indexed: 12/20/2022] Open
Abstract
Exosomes are nano-sized vesicles produced by healthy and virus-infected cells. Exosomes derived from infected cells have been shown to contain viral microRNAs (miRNAs). HIV-1 encodes its own miRNAs that regulate viral and host gene expression. The most abundant HIV-1-derived miRNA, first reported by us and later by others using deep sequencing, is the trans-activation response element (TAR) miRNA. In this study, we demonstrate the presence of TAR RNA in exosomes from cell culture supernatants of HIV-1-infected cells and patient sera. TAR miRNA was not in Ago2 complexes outside the exosomes but enclosed within the exosomes. We detected the host miRNA machinery proteins Dicer and Drosha in exosomes from infected cells. We report that transport of TAR RNA from the nucleus into exosomes is a CRM1 (chromosome region maintenance 1)-dependent active process. Prior exposure of naive cells to exosomes from infected cells increased susceptibility of the recipient cells to HIV-1 infection. Exosomal TAR RNA down-regulated apoptosis by lowering Bim and Cdk9 proteins in recipient cells. We found 10(4)-10(6) copies/ml TAR RNA in exosomes derived from infected culture supernatants and 10(3) copies/ml TAR RNA in the serum exosomes of highly active antiretroviral therapy-treated patients or long term nonprogressors. Taken together, our experiments demonstrated that HIV-1-infected cells produced exosomes that are uniquely characterized by their proteomic and RNA profiles that may contribute to disease pathology in AIDS.
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Affiliation(s)
- Aarthi Narayanan
- From the National Center for Biodefense and Infectious Diseases, George Mason University, Manassas, Virginia 20110
| | - Sergey Iordanskiy
- From the National Center for Biodefense and Infectious Diseases, George Mason University, Manassas, Virginia 20110
- the Department of Microbiology, Immunology and Tropical Medicine, George Washington University, Washington D. C. 20037
| | - Ravi Das
- From the National Center for Biodefense and Infectious Diseases, George Mason University, Manassas, Virginia 20110
| | - Rachel Van Duyne
- From the National Center for Biodefense and Infectious Diseases, George Mason University, Manassas, Virginia 20110
- the Department of Microbiology, Immunology and Tropical Medicine, George Washington University, Washington D. C. 20037
| | - Steven Santos
- the Department of Microbiology, Immunology and Tropical Medicine, George Washington University, Washington D. C. 20037
| | - Elizabeth Jaworski
- From the National Center for Biodefense and Infectious Diseases, George Mason University, Manassas, Virginia 20110
| | - Irene Guendel
- From the National Center for Biodefense and Infectious Diseases, George Mason University, Manassas, Virginia 20110
| | - Gavin Sampey
- From the National Center for Biodefense and Infectious Diseases, George Mason University, Manassas, Virginia 20110
| | - Elizabeth Dalby
- From the National Center for Biodefense and Infectious Diseases, George Mason University, Manassas, Virginia 20110
| | - Maria Iglesias-Ussel
- the Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, Maryland 21201
| | - Anastas Popratiloff
- the Department of Microbiology, Immunology and Tropical Medicine, George Washington University, Washington D. C. 20037
| | - Ramin Hakami
- From the National Center for Biodefense and Infectious Diseases, George Mason University, Manassas, Virginia 20110
| | - Kylene Kehn-Hall
- From the National Center for Biodefense and Infectious Diseases, George Mason University, Manassas, Virginia 20110
| | - Mary Young
- the Washington Metropolitan Women's Interagency HIV Study, Division of Infectious Diseases, Georgetown University Medical Center, Washington, D. C. 20007, and
| | - Caroline Subra
- the Department of Microbiology, Infectiology, and Immunology, Medicine Faculty, Laval University Center Hospitalier Universitaire de Quebec Research Center, City of Quebec, Quebec G1R2J6, Canada
| | - Caroline Gilbert
- the Department of Microbiology, Infectiology, and Immunology, Medicine Faculty, Laval University Center Hospitalier Universitaire de Quebec Research Center, City of Quebec, Quebec G1R2J6, Canada
| | - Charles Bailey
- From the National Center for Biodefense and Infectious Diseases, George Mason University, Manassas, Virginia 20110
| | - Fabio Romerio
- the Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, Maryland 21201
| | - Fatah Kashanchi
- From the National Center for Biodefense and Infectious Diseases, George Mason University, Manassas, Virginia 20110
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Almon RR, Dubois DC, Sukumaran S, Wang X, Xue B, Nie J, Jusko WJ. Effects of high fat feeding on liver gene expression in diabetic goto-kakizaki rats. GENE REGULATION AND SYSTEMS BIOLOGY 2012; 6:151-68. [PMID: 23236253 PMCID: PMC3516129 DOI: 10.4137/grsb.s10371] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Effects of high fat diet (HFD) on obesity and, subsequently, on diabetes are highly variable and modulated by genetics in both humans and rodents. In this report, we characterized the response of Goto-Kakizaki (GK) rats, a spontaneous polygenic model for lean diabetes and healthy Wistar-Kyoto (WKY) controls, to high fat feeding from weaning to 20 weeks of age. Animals fed either normal diet or HFD were sacrificed at 4, 8, 12, 16 and 20 weeks of age and a wide array of physiological measurements were made along with gene expression profiling using Affymetrix gene array chips. Mining of the microarray data identified differentially regulated genes (involved in inflammation, metabolism, transcription regulation, and signaling) in diabetic animals, as well as the response of both strains to HFD. Functional annotation suggested that HFD increased inflammatory differences between the two strains. Chronic inflammation driven by heightened innate immune response was identified to be present in GK animals regardless of diet. In addition, compensatory mechanisms by which WKY animals on HFD resisted the development of diabetes were identified, thus illustrating the complexity of diabetes disease progression.
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Affiliation(s)
- Richard R Almon
- Department of Biological Sciences, State University of New York at Buffalo, Buffalo, NY, USA. ; Department of Pharmaceutical Sciences, State University of New York at Buffalo, Buffalo, NY, USA. ; New York State Center of Excellence in Bioinformatics and Life Sciences
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Gercel-Taylor C, Atay S, Tullis RH, Kesimer M, Taylor DD. Nanoparticle analysis of circulating cell-derived vesicles in ovarian cancer patients. Anal Biochem 2012; 428:44-53. [PMID: 22691960 DOI: 10.1016/j.ab.2012.06.004] [Citation(s) in RCA: 179] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2012] [Revised: 05/18/2012] [Accepted: 06/01/2012] [Indexed: 01/01/2023]
Abstract
Cell-derived vesicles are recognized as essential components of intercellular communication, and many disease processes are associated with their aberrant composition and release. Circulating tumor-derived vesicles have major potential as biomarkers; however, the diagnostic use of exosomes is limited by the technology available for their objective characterization and measurement. In this study, we compare nanoparticle tracking analysis (NTA) with submicron particle analysis (SPA), dynamic light scattering (DLS), and electron microscopy (EM) to objectively define size distribution, number, and phenotype of circulating cell-derived vesicles from ovarian cancer patients. Using the NanoSight LM10 instrument, cell-derived vesicles were visualized by laser light scattering and analyzing Brownian motion of these vesicles captured by video. The NTA software calculates the size and total concentration of the vesicles in solution. Using vesicles isolated from ovarian cancer patients, we demonstrate that NTA can measure the size distributions of cell-derived vesicles comparable to other analysis instrumentation. Size determinations by NTA, SPA, and DLS were more objective and complete than that obtained with the commonly used EM approach. NTA can also define the total vesicle concentration. Furthermore, the use of fluorescent-labeled antibodies against specific markers with NTA allows the determination of the "phenotype" of the cell-derived vesicles.
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Affiliation(s)
- Cicek Gercel-Taylor
- Department of Obstetrics, Gynecology, and Women's Health, University of Louisville, Louisville, KY 40202, USA
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Cossetti C, Smith JA, Iraci N, Leonardi T, Alfaro-Cervello C, Pluchino S. Extracellular membrane vesicles and immune regulation in the brain. Front Physiol 2012; 3:117. [PMID: 22557978 PMCID: PMC3340916 DOI: 10.3389/fphys.2012.00117] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2012] [Accepted: 04/11/2012] [Indexed: 01/19/2023] Open
Abstract
The brain is characterized by a complex and integrated network of interacting cells in which cell-to-cell communication is critical for proper development and function. Initially considered as an immune privileged site, the brain is now regarded as an immune specialized system. Accumulating evidence reveals the presence of immune components in the brain, as well as extensive bidirectional communication that takes place between the nervous and the immune system both under homeostatic and pathological conditions. In recent years the secretion of extracellular membrane vesicles (EMVs) has been described as a new and evolutionary well-conserved mechanism of cell-to-cell communication, with EMVs influencing the microenvironment through the traffic of bioactive molecules that include proteins and nucleic acids, such as DNA, protein coding, and non-coding RNAs. Increasing evidence suggests that EMVs are a promising candidate to study cross-boundary cell-to-cell communication pathways. Herein we review the role of EMVs secreted by neural cells in modulating the immune response(s) within the brain under physiological and pathological circumstances.
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Affiliation(s)
- Chiara Cossetti
- Cambridge Centre for Brain Repair, Department of Clinical Neurosciences, Stem Cell Institute, University of Cambridge Cambridge, UK
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