101
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Lee TS, Kim Y, Zhang W, Song IH, Tung CH. Facile metabolic glycan labeling strategy for exosome tracking. Biochim Biophys Acta Gen Subj 2018; 1862:1091-1100. [PMID: 29410228 DOI: 10.1016/j.bbagen.2018.02.001] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Revised: 01/26/2018] [Accepted: 02/01/2018] [Indexed: 02/07/2023]
Abstract
BACKGROUND Exosomes are nano-sized vesicles derived from the fusion of multivesicular bodies with the surrounding plasma membrane. Exosomes have various diagnostic and therapeutic potentials in cancer and other diseases, thus tracking exosomes is an important issue. METHODS Here, we report a facile exosome labeling strategy using a natural metabolic incorporation of an azido-sugar into the glycan, and a strain-promoted azide-alkyne click reaction. In culture, tetra-acetylated N-azidoacetyl-D-mannosamine (Ac4ManNAz) was spontaneously incorporated into glycans within the cells and later redistributed onto their exosomes. These azido-containing exosomes were then labeled with azadibenzylcyclooctyne (ADIBO)-fluorescent dyes by a bioorthogonal click reaction. RESULTS Cellular uptake and the in vivo tracking of fluorescent labeled exosomes were evaluated in various cells and tumor bearing mice. Highly metastatic cancer-derived exosomes showed an increased self-homing in vitro and selective organ distribution in vivo. CONCLUSION Our metabolic exosome labeling strategy could be a promising tool in studying the biology and distribution of exosomes, and optimizing exosome based therapeutic approaches. GENERAL SIGNIFICANT A facile and effective exosome labeling strategy was introduced by presenting azido moiety on the surface of exosome through metabolic glycan synthesis, and then conjugating a strain-promoted fluorescent dye.
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Affiliation(s)
- Tae Sup Lee
- Molecular Imaging Innovations Institute, Department of Radiology, Weill Cornell Medicine, New York, NY 10021, USA; Division of RI-convergence Research, Korea Institute of Radiology and Medical Sciences, Seoul 01812, Republic of Korea
| | - Young Kim
- Molecular Imaging Innovations Institute, Department of Radiology, Weill Cornell Medicine, New York, NY 10021, USA
| | - Weiqi Zhang
- Molecular Imaging Innovations Institute, Department of Radiology, Weill Cornell Medicine, New York, NY 10021, USA
| | - In Ho Song
- Division of RI-convergence Research, Korea Institute of Radiology and Medical Sciences, Seoul 01812, Republic of Korea
| | - Ching-Hsuan Tung
- Molecular Imaging Innovations Institute, Department of Radiology, Weill Cornell Medicine, New York, NY 10021, USA.
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102
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He C, Zheng S, Luo Y, Wang B. Exosome Theranostics: Biology and Translational Medicine. Theranostics 2018; 8:237-255. [PMID: 29290805 PMCID: PMC5743472 DOI: 10.7150/thno.21945] [Citation(s) in RCA: 707] [Impact Index Per Article: 117.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2017] [Accepted: 10/04/2017] [Indexed: 02/07/2023] Open
Abstract
Exosomes are common membrane-bound nanovesicles that contain diverse biomolecules, such as lipids, proteins, and nucleic acids. Exosomes are derived from cells through exocytosis, are ingested by target cells, and can transfer biological signals between local or distant cells. Exosome secretion is a constitutive phenomenon that is involved in both physiological and pathological processes and determines both the exosomal surface molecules and the contents. Hence, we can exploit exosomes as biomarkers, vaccines and drug carriers and modify them rationally for therapeutic interventions. However, it is still a challenge to identify, isolate and quantify exosomes accurately, efficiently and selectively. Further studies on exosomes will explore their potential in translational medicine and provide new avenues for the creation of effective clinical diagnostics and therapeutic strategies; the use of exosomes in these applications can be called exosome theranostics. This review describes the fundamental processes of exosome formation and uptake. In addition, the physiological and pathological roles of exosomes in biology are also illustrated with a focus on how exosomes can be exploited or engineered as powerful tools in translational medicine.
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Affiliation(s)
- Chuanjiang He
- Cancer Institute (Key Laboratory of Cancer Prevention and Intervention, National Ministry of Education & Key Laboratory of Molecular Biology in Medical Sciences, Zhejiang Province), The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310009 China
- Institute of Translational Medicine, Zhejiang University, Hangzhou 310029 China
| | - Shu Zheng
- Cancer Institute (Key Laboratory of Cancer Prevention and Intervention, National Ministry of Education & Key Laboratory of Molecular Biology in Medical Sciences, Zhejiang Province), The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310009 China
| | - Yan Luo
- College of Basic Medical Sciences, School of Medicine, Zhejiang University, Hangzhou, 310058 China
| | - Ben Wang
- Cancer Institute (Key Laboratory of Cancer Prevention and Intervention, National Ministry of Education & Key Laboratory of Molecular Biology in Medical Sciences, Zhejiang Province), The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310009 China
- Institute of Translational Medicine, Zhejiang University, Hangzhou 310029 China
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103
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Jin J, Menon R. Placental exosomes: A proxy to understand pregnancy complications. Am J Reprod Immunol 2017; 79:e12788. [PMID: 29193463 DOI: 10.1111/aji.12788] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2017] [Accepted: 10/31/2017] [Indexed: 12/21/2022] Open
Abstract
Exosomes (30- to 150-nm particles), originating from multivesicular bodies by the invagination of the endosomal membrane, are communication channels between cells. Exosomes are released by various cell types and cargo proteins, lipids, and nucleic acids reflecting the physiologic status of their cells of origin and cause functional changes in recipient cells, which are likely dependent on their quantity and/or cargo contents. Recently, placental exosomes, produced by various placental cell types, have been isolated from maternal blood using the placental protein-specific marker, placental alkaline phosphatase (PLAP). PLAP-positive exosomes are seen in maternal blood as early as the first trimester of pregnancy and increase as gestation progresses, with maximum numbers seen at term. Although the functional relevance of placental exosomes is still under investigation, several studies have linked placental exosomes changes (quantity and cargo) reflecting placental dysfunctions associated with adverse pregnancy events. As placental exosomes can be isolated from maternal blood, they are liquid biopsies reflecting placental functions. Hence, they are useful as biomarkers of placental functions and dysfunctions obtainable through non-invasive approaches. This review summarizes the biogenesis, release, and functions of exosomes and specifically expounds the role of placental-specific exosomes and their significance associated with pregnancy complications.
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Affiliation(s)
- Jin Jin
- Department of Obstetrics and Gynecology, Division of Maternal-Fetal Medicine and Perinatal Research, The University of Texas Medical Branch at Galveston, Galveston, TX, USA.,Department of Gynaecology and Obstetrics, NanFang Hospital, Southern Medical University, Guangzhou, China
| | - Ramkumar Menon
- Department of Obstetrics and Gynecology, Division of Maternal-Fetal Medicine and Perinatal Research, The University of Texas Medical Branch at Galveston, Galveston, TX, USA
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104
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Johnsen KB, Gudbergsson JM, Duroux M, Moos T, Andresen TL, Simonsen JB. On the use of liposome controls in studies investigating the clinical potential of extracellular vesicle-based drug delivery systems - A commentary. J Control Release 2017; 269:10-14. [PMID: 29126999 DOI: 10.1016/j.jconrel.2017.11.002] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Revised: 10/31/2017] [Accepted: 11/02/2017] [Indexed: 12/23/2022]
Abstract
The field of extracellular vesicle (EV)-based drug delivery systems has evolved significantly through the recent years, and numerous studies suggest that these endogenous nanoparticles can function as efficient drug delivery vehicles in a variety of diseases. Many characteristics of these EV-based drug delivery vehicles suggest them to be superior at residing in the systemic circulation and possibly at mediating therapeutic effects compared to synthetic drug delivery vehicles, e.g. liposomes. In this Commentary, we discuss how some currently published head-to-head comparisons of EVs versus liposomes are weakened by the inadequate choice of liposomal formulation, and encourage researchers to implement better controls to show any potential superiority of EVs over other synthetic nanoparticles.
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Affiliation(s)
- Kasper Bendix Johnsen
- Laboratory of Neurobiology, Institute of Health Science and Technology, Aalborg University, Denmark; Center for Nanomedicine and Theranostics, Department of Micro- and Nanotechnology, Technical University of Denmark, Denmark.
| | - Johann Mar Gudbergsson
- Laboratory of Cancer Biology, Institute of Health Science and Technology, Aalborg University, Denmark
| | - Meg Duroux
- Laboratory of Cancer Biology, Institute of Health Science and Technology, Aalborg University, Denmark
| | - Torben Moos
- Laboratory of Neurobiology, Institute of Health Science and Technology, Aalborg University, Denmark
| | - Thomas Lars Andresen
- Center for Nanomedicine and Theranostics, Department of Micro- and Nanotechnology, Technical University of Denmark, Denmark
| | - Jens Bæk Simonsen
- Center for Nanomedicine and Theranostics, Department of Micro- and Nanotechnology, Technical University of Denmark, Denmark.
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105
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Chaiyadet S, Krueajampa W, Hipkaeo W, Plosan Y, Piratae S, Sotillo J, Smout M, Sripa B, Brindley PJ, Loukas A, Laha T. Suppression of mRNAs encoding CD63 family tetraspanins from the carcinogenic liver fluke Opisthorchis viverrini results in distinct tegument phenotypes. Sci Rep 2017; 7:14342. [PMID: 29084967 PMCID: PMC5662742 DOI: 10.1038/s41598-017-13527-5] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Accepted: 09/25/2017] [Indexed: 02/05/2023] Open
Abstract
The liver fluke Opisthorchis viverrini infects 10 million people in Southeast Asia and causes cholangiocarcinoma (CCA). Fluke secreted and tegumental proteins contribute to the generation of a tumorigenic environment and are targets for drug and vaccine-based control measures. Herein, we identified two tetraspanins belonging to the CD63 family (Ov-TSP-2 and Ov-TSP-3) that are abundantly expressed in the tegument proteome of O. viverrini. Ov-tsp-2 and tsp-3 transcripts were detected in all developmental stages of O. viverrini. Protein fragments corresponding to the large extracellular loop (LEL) of each TSP were produced in recombinant form and antibodies were raised in rabbits. Ov-TSP-2 and TSP-3 were detected in whole worm extracts and excretory/secretory products of O. viverrini and reacted with sera from infected hamsters and humans. Antibodies confirmed localization of Ov-TSP-2 and TSP-3 to the adult fluke tegument. Using RNA interference, Ov-tsp-2 and tsp-3 mRNA expression was significantly suppressed for up to 21 days in vitro. Ultrastructural observation of tsp-2 and tsp-3 dsRNA-treated flukes resulted in phenotypes with increased tegument thickness, increased vacuolation (tsp-2) and reduced electron density (tsp-3). These studies confirm the importance of CD63 family tegument tetraspanins in parasitic flukes and support efforts to target these proteins for vaccine development.
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Affiliation(s)
- Sujittra Chaiyadet
- Department of Parasitology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Watchara Krueajampa
- Department of Parasitology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Wiphawi Hipkaeo
- Electron microscopy Laboratory, Department of Anatomy, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Yada Plosan
- Electron microscopy Laboratory, Department of Anatomy, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Supawadee Piratae
- Office of Academic Affairs, Faculty of Veterinary Sciences, Mahasarakham University, Mahasarakham, Thailand
| | - Javier Sotillo
- Centre for Biodiscovery and Molecular Development of Therapeutics, Australian Institute of Tropical Health and Medicine, James Cook University, Cairns, QLD, Australia
| | - Michael Smout
- Centre for Biodiscovery and Molecular Development of Therapeutics, Australian Institute of Tropical Health and Medicine, James Cook University, Cairns, QLD, Australia
| | - Banchob Sripa
- Department of Pathology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Paul J Brindley
- Department of Microbiology, Immunology and Tropical Medicine, and Research Center for Neglected Diseases of Poverty, School of Medicine & Health Sciences, George Washington University, Washington, DC, 20037, USA
| | - Alex Loukas
- Centre for Biodiscovery and Molecular Development of Therapeutics, Australian Institute of Tropical Health and Medicine, James Cook University, Cairns, QLD, Australia.
| | - Thewarach Laha
- Department of Parasitology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand.
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106
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Butvilovskaya VI, Tikhonov AA, Savvateeva EN, Ragimov AA, Salimov EL, Voloshin SA, Sidorov DV, Chernichenko MA, Polyakov AP, Filushin MM, Tsybulskaya MV, Rubina AY. Hydrogel microchip as a tool for studying exosomes in human serum. Mol Biol 2017. [DOI: 10.1134/s0026893317050053] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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107
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Exosomes from Osteosarcoma and normal osteoblast differ in proteomic cargo and immunomodulatory effects on T cells. Exp Cell Res 2017; 358:369-376. [DOI: 10.1016/j.yexcr.2017.07.011] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Revised: 07/06/2017] [Accepted: 07/07/2017] [Indexed: 12/21/2022]
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108
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Lu J, Li J, Liu S, Wang T, Ianni A, Bober E, Braun T, Xiang R, Yue S. Exosomal tetraspanins mediate cancer metastasis by altering host microenvironment. Oncotarget 2017; 8:62803-62815. [PMID: 28977990 PMCID: PMC5617550 DOI: 10.18632/oncotarget.19119] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Accepted: 04/05/2017] [Indexed: 12/18/2022] Open
Abstract
The metastases of malignant tumors develop through a cascade of events. The establishment of a pre-metastatic micro-environment is initiated by communication between tumors and host. Exosomes come into focus as the most potent intercellular communicators playing a pivotal role in this process. Cancer cells release exosomes into the extracellular environment prior to metastasis. Tetraspanin is a type of 4 times transmembrane proteins. It may be involved in cell motility, adhesion, morphogenesis, as well as cell and vesicular membrane fusion. The exosomal tetraspanin network is a molecular scaffold connecting various proteins for signaling transduction. The complex of tetraspanin-integrin determines the recruiting cancer exosomes to pre-metastatic sites. Tetraspanin is a key element for the target cell selection of exosomes uptake that may lead to the reprogramming of target cells. Reprogrammed target cells assist pre-metastatic niche formation. Previous reviews have described the biogenesis, secretion and intercellular interaction of exosomes in various tumors. However, there is a lack of reviews on the topic of exosomal tetraspanin in the context of cancer. In this review, we will describe the main characteristics of exosomal tetraspanin in cancer cells. We will also discuss how the cancer exosomal tetraspanin alters extracellular environment and regulates cancer metastasis.
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Affiliation(s)
- Jun Lu
- Department of General Surgery, Hefei Second People's Hospital, Hefei, China
| | - Jun Li
- School of Medicine, Nankai University, Tianjin, China.,The State International Science & Technology Cooperation Base of Tumor Immunology and Biological Vaccines, Nankai University, Tianjin, China
| | - Shuo Liu
- School of Medicine, Nankai University, Tianjin, China.,The State International Science & Technology Cooperation Base of Tumor Immunology and Biological Vaccines, Nankai University, Tianjin, China
| | - Teng Wang
- School of Medicine, Nankai University, Tianjin, China.,The State International Science & Technology Cooperation Base of Tumor Immunology and Biological Vaccines, Nankai University, Tianjin, China
| | - Alessandro Ianni
- Department of Cardiac Development and Remodeling, Max-Planck-Institute for Heart and Lung Research, Bad Nauheim, Germany
| | - Eva Bober
- Department of Cardiac Development and Remodeling, Max-Planck-Institute for Heart and Lung Research, Bad Nauheim, Germany
| | - Thomas Braun
- Department of Cardiac Development and Remodeling, Max-Planck-Institute for Heart and Lung Research, Bad Nauheim, Germany
| | - Rong Xiang
- School of Medicine, Nankai University, Tianjin, China.,The State International Science & Technology Cooperation Base of Tumor Immunology and Biological Vaccines, Nankai University, Tianjin, China
| | - Shijing Yue
- School of Medicine, Nankai University, Tianjin, China.,The State International Science & Technology Cooperation Base of Tumor Immunology and Biological Vaccines, Nankai University, Tianjin, China
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109
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Khalyfa A, Kheirandish-Gozal L, Gozal D. Circulating exosomes in obstructive sleep apnea as phenotypic biomarkers and mechanistic messengers of end-organ morbidity. Respir Physiol Neurobiol 2017; 256:143-156. [PMID: 28676332 DOI: 10.1016/j.resp.2017.06.004] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Revised: 06/13/2017] [Accepted: 06/19/2017] [Indexed: 02/08/2023]
Abstract
Obstructive sleep apnea (OSA), the most severe form of sleep disordered breathing, is characterized by intermittent hypoxia during sleep (IH), sleep fragmentation, and episodic hypercapnia. OSA is associated with increased risk for morbidity and mortality affecting cardiovascular, metabolic, and neurocognitive systems, and more recently with non-alcoholic fatty liver disease (NAFLD) and cancer-related deaths. Substantial variability in OSA outcomes suggests that genetically-determined and environmental and lifestyle factors affect the phenotypic susceptibility to OSA. Furthermore, OSA and obesity often co-exist and manifest activation of shared molecular end-organ injury mechanisms that if properly identified may represent potential therapeutic targets. A challenge in the development of non-invasive diagnostic assays in body fluids is the ability to identify clinically relevant biomarkers. Circulating extracellular vesicles (EVs) include a heterogeneous population of vesicular structures including exosomes, prostasomes, microvesicles (MVs), ectosomes and oncosomes, and are classified based on their size, shape and membrane surface composition. Of these, exosomes (30-100nm) are very small membrane vesicles derived from multi-vesicular bodies or from the plasma membrane and play important roles in mediating cell-cell communication via cargo that includes lipids, proteins, mRNAs, miRNAs and DNA. We have recently identified a unique cluster of exosomal miRNAs in both humans and rodents exposed to intermittent hypoxia as well as in patients with OSA with divergent morbid phenotypes. Here we summarize such recent findings, and will focus on exosomal miRNAs in both adult and children which mediate intercellular communication relevant to OSA and endothelial dysfunction, and their potential value as diagnostic and prognostic biomarkers.
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Affiliation(s)
- Abdelnaby Khalyfa
- Department of Pediatrics, Pritzker School of Medicine, Biological Sciences Division, The University of Chicago, Chicago, IL, USA.
| | - Leila Kheirandish-Gozal
- Department of Pediatrics, Pritzker School of Medicine, Biological Sciences Division, The University of Chicago, Chicago, IL, USA
| | - David Gozal
- Department of Pediatrics, Pritzker School of Medicine, Biological Sciences Division, The University of Chicago, Chicago, IL, USA
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110
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Heusermann W, Hean J, Trojer D, Steib E, von Bueren S, Graff-Meyer A, Genoud C, Martin K, Pizzato N, Voshol J, Morrissey DV, Andaloussi SEL, Wood MJ, Meisner-Kober NC. Exosomes surf on filopodia to enter cells at endocytic hot spots, traffic within endosomes, and are targeted to the ER. J Cell Biol 2017; 213:173-84. [PMID: 27114500 PMCID: PMC5084269 DOI: 10.1083/jcb.201506084] [Citation(s) in RCA: 299] [Impact Index Per Article: 42.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2015] [Accepted: 03/09/2016] [Indexed: 12/19/2022] Open
Abstract
Exosomes are nanovesicles released by virtually all cells, which act as intercellular messengers by transfer of protein, lipid, and RNA cargo. Their quantitative efficiency, routes of cell uptake, and subcellular fate within recipient cells remain elusive. We quantitatively characterize exosome cell uptake, which saturates with dose and time and reaches near 100% transduction efficiency at picomolar concentrations. Highly reminiscent of pathogenic bacteria and viruses, exosomes are recruited as single vesicles to the cell body by surfing on filopodia as well as filopodia grabbing and pulling motions to reach endocytic hot spots at the filopodial base. After internalization, exosomes shuttle within endocytic vesicles to scan the endoplasmic reticulum before being sorted into the lysosome as their final intracellular destination. Our data quantify and explain the efficiency of exosome internalization by recipient cells, establish a new parallel between exosome and virus host cell interaction, and suggest unanticipated routes of subcellular cargo delivery.
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Affiliation(s)
- Wolf Heusermann
- Novartis Institutes for Biomedical Research, CH-4000 Basel, Switzerland
| | - Justin Hean
- Novartis Institutes for Biomedical Research, CH-4000 Basel, Switzerland Department of Physiology, Anatomy, and Genetics, University of Oxford, Oxford OX1 3QX, England, UK
| | - Dominic Trojer
- Novartis Institutes for Biomedical Research, CH-4000 Basel, Switzerland
| | - Emmanuelle Steib
- Novartis Institutes for Biomedical Research, CH-4000 Basel, Switzerland
| | - Stefan von Bueren
- Novartis Institutes for Biomedical Research, CH-4000 Basel, Switzerland
| | | | - Christel Genoud
- Friedrich-Miescher Institute for Biomedical Research, CH-4000 Basel, Switzerland
| | - Katrin Martin
- Department of Biomedicine, University of Basel, CH-4058 Basel, Switzerland
| | - Nicolas Pizzato
- Novartis Institutes for Biomedical Research, CH-4000 Basel, Switzerland
| | - Johannes Voshol
- Novartis Institutes for Biomedical Research, CH-4000 Basel, Switzerland
| | | | - Samir E L Andaloussi
- Department of Physiology, Anatomy, and Genetics, University of Oxford, Oxford OX1 3QX, England, UK Department of Laboratory Medicine, Karolinska Institutet, SE-141 86 Huddinge, Sweden
| | - Matthew J Wood
- Department of Physiology, Anatomy, and Genetics, University of Oxford, Oxford OX1 3QX, England, UK
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111
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Fernandez-Trillo F, Grover LM, Stephenson-Brown A, Harrison P, Mendes PM. Vesicles in Nature and the Laboratory: Elucidation of Their Biological Properties and Synthesis of Increasingly Complex Synthetic Vesicles. Angew Chem Int Ed Engl 2017; 56:3142-3160. [DOI: 10.1002/anie.201607825] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2016] [Revised: 10/12/2016] [Indexed: 12/19/2022]
Affiliation(s)
| | - Liam M. Grover
- School of Chemical Engineering; University of Birmingham; Edgbaston Birmingham B15 2TT UK
| | - Alex Stephenson-Brown
- School of Chemical Engineering; University of Birmingham; Edgbaston Birmingham B15 2TT UK
| | - Paul Harrison
- Institute of Inflammation and Ageing (IIA); University of Birmingham; Edgbaston Birmingham B15 2TT UK
| | - Paula M. Mendes
- School of Chemical Engineering; University of Birmingham; Edgbaston Birmingham B15 2TT UK
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112
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Fernandez-Trillo F, Grover LM, Stephenson-Brown A, Harrison P, Mendes PM. Vesikel in der Natur und im Labor: die Aufklärung der biologischen Eigenschaften und die Synthese zunehmend komplexer synthetischer Vesikel. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201607825] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
| | - Liam M. Grover
- School of Chemical Engineering; University of Birmingham; Edgbaston Birmingham B15 2TT Großbritannien
| | - Alex Stephenson-Brown
- School of Chemical Engineering; University of Birmingham; Edgbaston Birmingham B15 2TT Großbritannien
| | - Paul Harrison
- Institute of Inflammation and Ageing (IIA); University of Birmingham; Edgbaston Birmingham B15 2TT Großbritannien
| | - Paula M. Mendes
- School of Chemical Engineering; University of Birmingham; Edgbaston Birmingham B15 2TT Großbritannien
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113
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Abstract
Virtually all cells in the organism secrete extracellular vesicles (EVs), a heterogeneous population of lipid bilayer membrane-enclosed vesicles that transport and deliver payloads of proteins and nucleic acids to recipient cells, thus playing central roles in cell-cell communications. Exosomes, nanosized EVs of endosomal origin, regulate many pathophysiological processes including immune responses and inflammation, tumour growth, and infection. Healthy subjects and patients with different diseases release exosomes with different RNA and protein contents into the circulation, which can be measured as biomarkers. The discovery of exosomes as natural carriers of functional small RNA and proteins has raised great interest in the drug delivery field, as it may be possible to harness these vesicles for therapeutic delivery of miRNA, siRNA, mRNA, lncRNA, peptides, and synthetic drugs. However, systemically delivered exosomes accumulate in liver, kidney, and spleen. Targeted exosomes can be obtained by displaying targeting molecules, such as peptides or antibody fragments recognizing target antigens, on the outer surface of exosomes. Display of glycosylphosphatidylinositol (GPI)-anchored nanobodies on EVs is a novel technique that enables EV display of a variety of proteins including antibodies, reporter proteins, and signaling molecules. However, naturally secreted exosomes show limited pharmaceutical acceptability. Engineered exosome mimetics that incorporate desirable components of natural exosomes into synthetic liposomes or nanoparticles, and are assembled using controllable procedures may be more acceptable pharmaceutically. In this communication, we review the current understanding of physiological and pathophysiological roles of exosomes, their potential applications as diagnostic markers, and current efforts to develop improved exosome-based drug delivery systems.
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Affiliation(s)
- Lucio Barile
- Laboratory of Cellular and Molecular Cardiology, Cardiocentro Ticino Foundation, Lugano, Swiss Institute for Regenerative Medicine (SIRM), Taverne, Switzerland.
| | - Giuseppe Vassalli
- Laboratory of Cellular and Molecular Cardiology, Cardiocentro Ticino Foundation, Lugano, Swiss Institute for Regenerative Medicine (SIRM), Taverne, Switzerland; Dept. of Cardiology, University of Lausanne Medical Hospital (CHUV), Lausanne, Switzerland.
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114
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Selmaj I, Mycko MP, Raine CS, Selmaj KW. The role of exosomes in CNS inflammation and their involvement in multiple sclerosis. J Neuroimmunol 2017; 306:1-10. [PMID: 28385180 DOI: 10.1016/j.jneuroim.2017.02.002] [Citation(s) in RCA: 88] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2016] [Revised: 02/03/2017] [Accepted: 02/03/2017] [Indexed: 12/19/2022]
Abstract
Multiple sclerosis (MS) is a putative autoimmune disease of the central nervous system (CNS) in which autoreactive immune cells recognizing myelin antigens lead to demyelination and axonal injury. Mechanisms relevant to the pathogenesis of MS have not been fully elucidated, particularly those underlying initiation of immune system dysfunction. For example, it is not known how reactivity against CNS components is generated within the peripheral immune system. In this review, we propose that a significant contribution to the immunoregulatory events may derive from a cell-to-cell communication system involving the production, secretion and transfer of extracellular vesicles known as exosomes. Herein, we discuss in detail the biogenesis and roles of these cell surface-generated vesicles from the standpoint of receptors and their cargo, microRNA. It is well known that exosomes can cross the blood-brain barrier and thus may contribute to the spread of brain antigens to the periphery. Further understanding of exosome-dependent mechanisms in MS should provide a novel angle to the analysis of the pathogenesis of this disease. Finally, we launch the idea that exosomes and their contents may serve as biomarkers in MS.
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Affiliation(s)
- Igor Selmaj
- Department of Neurology, Laboratory of Neuroimmunology, Medical University of Lodz, Lodz, Poland
| | - Marcin P Mycko
- Department of Neurology, Laboratory of Neuroimmunology, Medical University of Lodz, Lodz, Poland
| | - Cedric S Raine
- Department of Pathology, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Krzysztof W Selmaj
- Department of Neurology, Laboratory of Neuroimmunology, Medical University of Lodz, Lodz, Poland.
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115
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Yang T, Fogarty B, LaForge B, Aziz S, Pham T, Lai L, Bai S. Delivery of Small Interfering RNA to Inhibit Vascular Endothelial Growth Factor in Zebrafish Using Natural Brain Endothelia Cell-Secreted Exosome Nanovesicles for the Treatment of Brain Cancer. AAPS JOURNAL 2016; 19:475-486. [PMID: 27882487 DOI: 10.1208/s12248-016-0015-y] [Citation(s) in RCA: 134] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Accepted: 11/07/2016] [Indexed: 01/08/2023]
Abstract
Although small interfering RNA (siRNA) holds great therapeutic promise, its delivery to the disease site remains a paramount obstacle. In this study, we tested whether brain endothelial cell-derived exosomes could deliver siRNA across the blood-brain barrier (BBB) in zebrafish. Natural exosomes were isolated from brain endothelial bEND.3 cell culture media and vascular endothelial growth factor (VEGF) siRNA was loaded in exosomes with the assistance of a transfection reagent. While fluorescence-activated cell flow cytometry and immunocytochemistry staining studies indicated that wild-type exosomes significantly increased the uptake of fluorescence-labeled siRNA in the autologous brain endothelial cells, decreased fluorescence intensity was observed in the cells treated with the tetraspanin CD63 antibody-blocked exosome-delivered formulation (p < 0.05). In the transport study, exosomes also enhanced the permeability of rhodamine 123 in a co-cultured monolayer of brain endothelial bEND.3 cell and astrocyte. Inhibition at the expression of VEGF RNA and protein levels was observed in glioblastoma-astrocytoma U-87 MG cells treated with exosome-delivered siRNAs. Imaging results showed that exosome delivered more siRNAs across the BBB in Tg(fli1:GFP) zebrafish. In a xenotransplanted brain tumor model, exosome-delivered VEGF siRNAs decreased the fluorescence intensity of labeled cancer cells in the brain of zebrafish. Brain endothelial cell-derived exosomes could be potentially used as a natural carrier for the brain delivery of exogenous siRNA.
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Affiliation(s)
- Tianzhi Yang
- Department of Basic Pharmaceutical Sciences, School of Pharmacy, Husson University, Bangor, Maine, 04401, USA
| | - Brittany Fogarty
- Department of Basic Pharmaceutical Sciences, School of Pharmacy, Husson University, Bangor, Maine, 04401, USA
| | - Bret LaForge
- Department of Basic Pharmaceutical Sciences, School of Pharmacy, Husson University, Bangor, Maine, 04401, USA
| | - Salma Aziz
- Department of Basic Pharmaceutical Sciences, School of Pharmacy, Husson University, Bangor, Maine, 04401, USA
| | - Thuy Pham
- Department of Basic Pharmaceutical Sciences, School of Pharmacy, Husson University, Bangor, Maine, 04401, USA
| | - Leanne Lai
- Department of Sociobehavioral and Administrative Pharmacy, College of Pharmacy, Nova Southeastern University, Ft. Lauderdale, Florida, 33328, USA
| | - Shuhua Bai
- Department of Basic Pharmaceutical Sciences, School of Pharmacy, Husson University, Bangor, Maine, 04401, USA.
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Nguyen HPT, Simpson RJ, Salamonsen LA, Greening DW. Extracellular Vesicles in the Intrauterine Environment: Challenges and Potential Functions. Biol Reprod 2016; 95:109. [PMID: 27655784 PMCID: PMC5333933 DOI: 10.1095/biolreprod.116.143503] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2016] [Revised: 08/08/2016] [Accepted: 09/13/2016] [Indexed: 01/07/2023] Open
Abstract
Extracellular vesicles (EVs), including exosomes (30–150 nm) and microvesicles (100–1500 nm), play important roles in mediating cell-cell communication. Such particles package distinct cargo elements, including lipids, proteins, mRNAs, microRNAs, and DNA, that vary depending on the cell of origin and its phenotype. This cargo can be horizontally transferred to target cells where its components can reprogram the recipient cell to modify its function. EVs have been identified within the uterine cavity of women, sheep, and mice, where they contribute to the microenvironment of sperm transport, and of blastocyst and endometrial preparation for implantation. It is likely that exosomes and microvesicles carry different cargo and coordinate different roles in this intrauterine environment. Understanding and defining these subtypes of EVs is important for future functional studies and clinical translation. Here we critically review the various purification and validation procedures for extracellular vesicle analysis and discuss what is known of endometrial-derived exosome cargo and of their hormonal regulation. The current knowledge of the functions of uterine exosomes, with respect to sperm transport and function, and of their actions on trophectodermal cells to promote implantation are summarized and evaluated in their physiological context. Given the potential importance of this form of cell-cell interactions within the reproductive tract, the critical issues discussed will guide new insights in this rapidly expanding field.
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Affiliation(s)
- Hong P T Nguyen
- Hudson Institute of Medical Research (previously Prince Henry's Institute), Clayton, Victoria, Australia
| | - Richard J Simpson
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria, Australia
| | - Lois A Salamonsen
- Hudson Institute of Medical Research (previously Prince Henry's Institute), Clayton, Victoria, Australia
| | - David W Greening
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria, Australia
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Atayde VD, Hassani K, da Silva Lira Filho A, Borges AR, Adhikari A, Martel C, Olivier M. Leishmania exosomes and other virulence factors: Impact on innate immune response and macrophage functions. Cell Immunol 2016; 309:7-18. [PMID: 27499212 DOI: 10.1016/j.cellimm.2016.07.013] [Citation(s) in RCA: 89] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2016] [Revised: 07/14/2016] [Accepted: 07/25/2016] [Indexed: 12/23/2022]
Abstract
Leishmania parasites are the causative agents of the leishmaniases, a collection of vector-borne diseases that range from simple cutaneous to fatal visceral forms. Employing potent immune modulation mechanisms, Leishmania is able to render the host macrophage inactive and persist inside its phagolysosome. In the last few years, the role of exosomes in Leishmania-host interactions has been increasingly investigated. For instance, it was reported that Leishmania exosome release is augmented following temperature shift, a condition mimicking parasite's entry into its mammalian host. Leishmania exosomes were found to strongly affect macrophage cell signaling and functions, similarly to whole parasites. Importantly, these vesicles were shown to be pro-inflammatory, capable to recruit neutrophils at their inoculation site exacerbating the pathology. In this review, we provide the most recent insights on the role of exosomes and other virulence factors, especially the surface protease GP63, in Leishmania-host interactions, deepening our knowledge on leishmaniasis and paving the way for the development of new therapeutics.
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Affiliation(s)
- Vanessa Diniz Atayde
- Departments of Medicine, Microbiology and Immunology, McGill University, 3775 University Street, Montréal, QC H3A 2B4, Canada; Infectious Diseases and Immunity in Global Heath Program, The Research Institute of the McGill University Health Centre, 1001 Boulevard Décarie, Montréal, QC H4A 3J1, Canada
| | - Kasra Hassani
- Departments of Medicine, Microbiology and Immunology, McGill University, 3775 University Street, Montréal, QC H3A 2B4, Canada; Infectious Diseases and Immunity in Global Heath Program, The Research Institute of the McGill University Health Centre, 1001 Boulevard Décarie, Montréal, QC H4A 3J1, Canada
| | - Alonso da Silva Lira Filho
- Departments of Medicine, Microbiology and Immunology, McGill University, 3775 University Street, Montréal, QC H3A 2B4, Canada; Infectious Diseases and Immunity in Global Heath Program, The Research Institute of the McGill University Health Centre, 1001 Boulevard Décarie, Montréal, QC H4A 3J1, Canada
| | - Andrezza Raposo Borges
- Departments of Medicine, Microbiology and Immunology, McGill University, 3775 University Street, Montréal, QC H3A 2B4, Canada; Infectious Diseases and Immunity in Global Heath Program, The Research Institute of the McGill University Health Centre, 1001 Boulevard Décarie, Montréal, QC H4A 3J1, Canada
| | - Anupam Adhikari
- Departments of Medicine, Microbiology and Immunology, McGill University, 3775 University Street, Montréal, QC H3A 2B4, Canada; Infectious Diseases and Immunity in Global Heath Program, The Research Institute of the McGill University Health Centre, 1001 Boulevard Décarie, Montréal, QC H4A 3J1, Canada
| | - Caroline Martel
- Departments of Medicine, Microbiology and Immunology, McGill University, 3775 University Street, Montréal, QC H3A 2B4, Canada; Infectious Diseases and Immunity in Global Heath Program, The Research Institute of the McGill University Health Centre, 1001 Boulevard Décarie, Montréal, QC H4A 3J1, Canada
| | - Martin Olivier
- Departments of Medicine, Microbiology and Immunology, McGill University, 3775 University Street, Montréal, QC H3A 2B4, Canada; Infectious Diseases and Immunity in Global Heath Program, The Research Institute of the McGill University Health Centre, 1001 Boulevard Décarie, Montréal, QC H4A 3J1, Canada.
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Heiler S, Wang Z, Zöller M. Pancreatic cancer stem cell markers and exosomes - the incentive push. World J Gastroenterol 2016; 22:5971-6007. [PMID: 27468191 PMCID: PMC4948278 DOI: 10.3748/wjg.v22.i26.5971] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2016] [Revised: 06/03/2016] [Accepted: 06/28/2016] [Indexed: 02/06/2023] Open
Abstract
Pancreatic cancer (PaCa) has the highest death rate and incidence is increasing. Poor prognosis is due to late diagnosis and early metastatic spread, which is ascribed to a minor population of so called cancer stem cells (CSC) within the mass of the primary tumor. CSC are defined by biological features, which they share with adult stem cells like longevity, rare cell division, the capacity for self renewal, differentiation, drug resistance and the requirement for a niche. CSC can also be identified by sets of markers, which for pancreatic CSC (Pa-CSC) include CD44v6, c-Met, Tspan8, alpha6beta4, CXCR4, CD133, EpCAM and claudin7. The functional relevance of CSC markers is still disputed. We hypothesize that Pa-CSC markers play a decisive role in tumor progression. This is fostered by the location in glycolipid-enriched membrane domains, which function as signaling platform and support connectivity of the individual Pa-CSC markers. Outside-in signaling supports apoptosis resistance, stem cell gene expression and tumor suppressor gene repression as well as miRNA transcription and silencing. Pa-CSC markers also contribute to motility and invasiveness. By ligand binding host cells are triggered towards creating a milieu supporting Pa-CSC maintenance. Furthermore, CSC markers contribute to the generation, loading and delivery of exosomes, whereby CSC gain the capacity for a cell-cell contact independent crosstalk with the host and neighboring non-CSC. This allows Pa-CSC exosomes (TEX) to reprogram neighboring non-CSC towards epithelial mesenchymal transition and to stimulate host cells towards preparing a niche for metastasizing tumor cells. Finally, TEX communicate with the matrix to support tumor cell motility, invasion and homing. We will discuss the possibility that CSC markers are the initial trigger for these processes and what is the special contribution of CSC-TEX.
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Sheller S, Papaconstantinou J, Urrabaz-Garza R, Richardson L, Saade G, Salomon C, Menon R. Amnion-Epithelial-Cell-Derived Exosomes Demonstrate Physiologic State of Cell under Oxidative Stress. PLoS One 2016; 11:e0157614. [PMID: 27333275 PMCID: PMC4917104 DOI: 10.1371/journal.pone.0157614] [Citation(s) in RCA: 92] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Accepted: 06/01/2016] [Indexed: 02/07/2023] Open
Abstract
At term, the signals of fetal maturity and feto-placental tissue aging prompt uterine readiness for delivery by transitioning quiescent myometrium to an active stage. It is still unclear how the signals reach the distant myometrium. Exosomes are a specific type of extracellular vesicle (EVs) that transport molecular signals between cells, and are released from a wide range of cells, including the maternal and fetal cells. In this study, we hypothesize that i) exosomes act as carriers of signals in utero-placental compartments and ii) exosomes reflect the physiologic status of the origin cells. The primary aims of this study were to determine exosomal contents in exosomes derived from primary amnion epithelial cells (AEC). We also determined the effect of oxidative stress on AEC derived exosomal cargo contents. AEC were isolated from amniotic membrane obtained from normal, term, not in labor placentae at delivery, and culture under standard conditions. Oxidative stress was induced using cigarette smoke extract for 48 hours. AEC-conditioned media were collected and exosomes isolated by differential centrifugations. Both growth conditions (normal and oxidative stress induced) produced cup shaped exosomes of around 50 nm, expressed exosomes enriched markers, such as CD9, CD63, CD81 and HSC70, embryonic stem cell marker Nanog, and contained similar amounts of cell free AEC DNA. Using confocal microscopy, the colocalization of histone (H) 3, heat shock protein (HSP) 70 and activated form of pro-senescence and term parturition associated marker p38 mitogen activated protein kinase (MAPK) (P-p38 MAPK) co-localized with exosome enrich marker CD9. HSP70 and P-p38 MAPK were significantly higher in exosomes from AEC grown under oxidative stress conditions than standard conditions (p<0.05). Finally, mass spectrometry and bioinformatics analysis identified 221 different proteins involved in immunomodulatory response and cell-to-cell communication. This study determined AEC exosome characteristics and their cargo reflected the physiologic status of the cell of origin and suggests that AEC-derived exosomal p38 MAPK plays a major role in determining the fate of pregnancy. Understanding the propagation of fetal signals and their mechanisms in normal term pregnancies can provide insights into pathologic activation of such signals associated with spontaneous preterm parturitions.
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Affiliation(s)
- Samantha Sheller
- Division of Maternal-Fetal Medicine & Perinatal Research, Department of Obstetrics & Gynecology, The University of Texas Medical Branch at Galveston, Galveston, Texas, United States of America.,Department of Biochemistry and Molecular Biology, The University of Texas Medical Branch at Galveston, Galveston, Texas, United States of America
| | - John Papaconstantinou
- Department of Biochemistry and Molecular Biology, The University of Texas Medical Branch at Galveston, Galveston, Texas, United States of America
| | - Rheanna Urrabaz-Garza
- Division of Maternal-Fetal Medicine & Perinatal Research, Department of Obstetrics & Gynecology, The University of Texas Medical Branch at Galveston, Galveston, Texas, United States of America
| | - Lauren Richardson
- Division of Maternal-Fetal Medicine & Perinatal Research, Department of Obstetrics & Gynecology, The University of Texas Medical Branch at Galveston, Galveston, Texas, United States of America
| | - George Saade
- Division of Maternal-Fetal Medicine & Perinatal Research, Department of Obstetrics & Gynecology, The University of Texas Medical Branch at Galveston, Galveston, Texas, United States of America
| | - Carlos Salomon
- Exosome Biology Laboratory, Centre for Clinical Diagnostics, UQ Centre for Clinical Research, Faculty of Health Sciences, University of Queensland, Herston, Queensland, Australia
| | - Ramkumar Menon
- Division of Maternal-Fetal Medicine & Perinatal Research, Department of Obstetrics & Gynecology, The University of Texas Medical Branch at Galveston, Galveston, Texas, United States of America
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Fonseca P, Vardaki I, Occhionero A, Panaretakis T. Metabolic and Signaling Functions of Cancer Cell-Derived Extracellular Vesicles. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2016; 326:175-99. [PMID: 27572129 DOI: 10.1016/bs.ircmb.2016.04.004] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Extracellular vesicles have gained tremendous attention in the recent years as a novel mechanism of cell to cell communication. There are several types of extracellular vesicles, including exosomes, microvesicles, exosome, like vesicles, apoptotic bodies that differ mainly in the mechanism of biogenesis and secretion. The most well studied type of extracellular vesicles are the exosomes which are endosome-derived vesicles with a diameter of 50-150nm and enriched in ESCRT proteins including Alix, TSG101, Hsp70, and tetraspanins. It is now well established that exosomes promote tumor growth, alter the tumor microenvironment, facilitate the dissemination of cancer cells in an organotropic manner, modulate immune responses, and mediate resistance to therapy. Exosomes have also been recently implicated in an emerging hallmark of cancer, the cancer cell metabolism. The metabolic state of the cell defines, to a certain extent, both the rate of secretion and the molecular content of tumor-derived exosomes. Furthermore, exosomes have been shown to possess intrinsic metabolic activity since they can synthesize ATP by glycolysis. It follows that exosomes carry a number of metabolic enzymes and metabolites, including lactate, PGE, LDH isoforms, pyruvate, and monocarboxylate transporters. Last but not the least, exosomes are implicated in fatty acid synthesis and cholesterol metabolism and are thought to be crucial for the transcellular metabolism procedure. Uptake of exosomes is thought to alter the intracellular metabolic state of the cell. In summary, we describe the state of the art on the role of metabolism in the secretion, uptake, and the biological effects of exosomes in the metabolism of recipient cells.
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Affiliation(s)
- P Fonseca
- Department of Oncology-Pathology, Karolinska Institutet and University Hospital, Stockholm, Sweden
| | - I Vardaki
- Department of Oncology-Pathology, Karolinska Institutet and University Hospital, Stockholm, Sweden
| | - A Occhionero
- Department of Oncology-Pathology, Karolinska Institutet and University Hospital, Stockholm, Sweden
| | - T Panaretakis
- Department of Oncology-Pathology, Karolinska Institutet and University Hospital, Stockholm, Sweden.
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Stremersch S, Vandenbroucke RE, Van Wonterghem E, Hendrix A, De Smedt SC, Raemdonck K. Comparing exosome-like vesicles with liposomes for the functional cellular delivery of small RNAs. J Control Release 2016; 232:51-61. [DOI: 10.1016/j.jconrel.2016.04.005] [Citation(s) in RCA: 89] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2016] [Revised: 03/18/2016] [Accepted: 04/05/2016] [Indexed: 12/22/2022]
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Abstract
Tumor cells actively produce, release, and utilize exosomes to promote tumor growth. Mechanisms through which tumor-derived exosomes subserve the tumor are under intense investigation. These exosomes are information carriers, conveying molecular and genetic messages from tumor cells to normal or other abnormal cells residing at close or distant sites. Tumor-derived exosomes are found in all body fluids. Upon contact with target cells, they alter phenotypic and functional attributes of recipients, reprogramming them into active contributors to angiogenesis, thrombosis, metastasis, and immunosuppression. Exosomes produced by tumors carry cargos that in part mimic contents of parent cells and are of potential interest as noninvasive biomarkers of cancer. Their role in inhibiting the host antitumor responses and in mediating drug resistance is important for cancer therapy. Tumor-derived exosomes may interfere with cancer immunotherapy, but they also could serve as adjuvants and antigenic components of antitumor vaccines. Their biological roles in cancer development or progression as well as cancer therapy suggest that tumor-derived exosomes are critical components of oncogenic transformation.
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Affiliation(s)
- Theresa L Whiteside
- University of Pittsburgh School of Medicine, University of Pittsburgh Cancer Institute, Pittsburgh, PA, United States.
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123
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Mitsialis SA, Kourembanas S. Stem cell-based therapies for the newborn lung and brain: Possibilities and challenges. Semin Perinatol 2016; 40:138-51. [PMID: 26778234 PMCID: PMC4808378 DOI: 10.1053/j.semperi.2015.12.002] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
There have been substantial advances in neonatal medical care over the past 2 decades that have resulted in the increased survival of very low birth weight infants, survival that in some centers extends to 22 weeks gestational age. Despite these advances, there continues to be significant morbidity associated with extreme preterm birth that includes both short-term and long-term pulmonary and neurologic consequences. No single therapy has proven to be effective in preventing or treating either developmental lung and brain injuries in preterm infants or the hypoxic-ischemic injury that can be inflicted on the full-term brain as a result of in utero or perinatal complications. Stem cell-based therapies are emerging as a potential paradigm-shifting approach for such complex diseases with multifactorial etiologies, but a great deal of work is still required to understand the role of stem/progenitor cells in normal development and in the repair of injured tissue. This review will summarize the biology of the various stem/progenitor cells, their effects on tissue repair in experimental models of lung and brain injury, the recent advances in our understanding of their mechanism of action, and the challenges that remain to be addressed before their eventual application to clinical care.
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124
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Distinct Entry Mechanisms for Nonenveloped and Quasi-Enveloped Hepatitis E Viruses. J Virol 2016; 90:4232-4242. [PMID: 26865708 DOI: 10.1128/jvi.02804-15] [Citation(s) in RCA: 167] [Impact Index Per Article: 20.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2015] [Accepted: 02/04/2016] [Indexed: 12/16/2022] Open
Abstract
UNLABELLED The hepatitis E virus (HEV) sheds into feces as nonenveloped virions but circulates in the blood in a membrane-associated, quasi-enveloped form (eHEV). Since the eHEV virions lack viral proteins on the surface, we investigated the entry mechanism for eHEV. We found that compared to nonenveloped HEV virions, eHEV attachment to the cell was much less efficient, requiring a longer inoculation time to reach its maximal infectivity. A survey of cellular internalization pathways identified clathrin-mediated endocytosis as the main route for eHEV entry. Unlike nonenveloped HEV virions, eHEV entry requires Rab5 and Rab7, small GTPases involved in endosomal trafficking, and blocking endosomal acidification abrogated eHEV infectivity. However, low pH alone was not sufficient for eHEV uncoating, suggesting that additional steps are required for entry. Supporting this concept, eHEV infectivity was substantially reduced in cells depleted of Niemann-Pick disease type C1, a lysosomal protein required for cholesterol extraction from lipid, or in cells treated with an inhibitor of lysosomal acid lipase. These data support a model in which the quasi-envelope is degraded within the lysosome prior to virus uncoating, a potentially novel mechanism for virus entry. IMPORTANCE The recent discovery of quasi-enveloped viruses has shifted the paradigm of virus-host interactions. The impact of quasi-envelopment in the virus life cycle and pathogenesis is largely unknown. HEV is a highly relevant model to study these questions. HEV circulates as quasi-enveloped virions in the blood that are hidden from neutralizing antibodies. eHEV particles most likely are responsible for the cell-to-cell spread of the virus. Given the increasing concerns about persistent HEV infection and its potential for transmission via the blood supply, understanding how eHEV infects cells is important for understanding its pathogenesis and developing therapies. Our data provide evidence that eHEV uses a potentially novel mechanism for cellular entry. Several steps critical to eHEV entry were identified and may provide a basis for developing treatments for hepatitis E. Because quasi-enveloped viruses resemble exosomes, these data also may provide insights into the exosome-mediated intercellular communications.
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Angeloni NL, McMahon KM, Swaminathan S, Plebanek MP, Osman I, Volpert OV, Thaxton CS. Pathways for Modulating Exosome Lipids Identified By High-Density Lipoprotein-Like Nanoparticle Binding to Scavenger Receptor Type B-1. Sci Rep 2016; 6:22915. [PMID: 26964503 PMCID: PMC4786789 DOI: 10.1038/srep22915] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2015] [Accepted: 02/24/2016] [Indexed: 01/03/2023] Open
Abstract
Exosomes are produced by cells to mediate intercellular communication, and have been shown to perpetuate diseases, including cancer. New tools are needed to understand exosome biology, detect exosomes from specific cell types in complex biological media, and to modify exosomes. Our data demonstrate a cellular pathway whereby membrane-bound scavenger receptor type B-1 (SR-B1) in parent cells becomes incorporated into exosomes. We tailored synthetic HDL-like nanoparticles (HDL NP), high-affinity ligands for SR-B1, to carry a fluorescently labeled phospholipid. Data show SR-B1-dependent transfer of the fluorescent phospholipid from HDL NPs to exosomes. Modified exosomes are stable in serum and can be directly detected using flow cytometry. As proof-of-concept, human serum exosomes were found to express SR-B1, and HDL NPs can be used to label and isolate them. Ultimately, we discovered a natural cellular pathway and nanoparticle-receptor pair that enables exosome modulation, detection, and isolation.
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Affiliation(s)
- Nicholas L. Angeloni
- Department of Urology, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
- Simpson Querrey Institute for BioNanotechnology, Northwestern University Feinberg School of Medicine, Chicago, IL United States
- Robert H. Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
| | - Kaylin M. McMahon
- Department of Urology, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
- Simpson Querrey Institute for BioNanotechnology, Northwestern University Feinberg School of Medicine, Chicago, IL United States
- Robert H. Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
- Driskill Graduate Program in Life Sciences, Northwestern University, Chicago, IL, United States
| | - Suchitra Swaminathan
- Robert H. Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
| | - Michael P. Plebanek
- Department of Urology, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
- Simpson Querrey Institute for BioNanotechnology, Northwestern University Feinberg School of Medicine, Chicago, IL United States
- Robert H. Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
- Driskill Graduate Program in Life Sciences, Northwestern University, Chicago, IL, United States
| | - Iman Osman
- The Ronald O. Perelman Department of Dermatology, New York University School of Medicine, New York, NY, United States
- Laura and Isaac Perlmutter Cancer Center, New York University, Langone Medical Center, New York, NY, United States
| | - Olga V. Volpert
- Department of Urology, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
- Robert H. Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
| | - C. Shad Thaxton
- Department of Urology, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
- Simpson Querrey Institute for BioNanotechnology, Northwestern University Feinberg School of Medicine, Chicago, IL United States
- Robert H. Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
- International Institute for Nanotechnology (IIN), Northwestern University, Evanston, IL, United States
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Iraci N, Leonardi T, Gessler F, Vega B, Pluchino S. Focus on Extracellular Vesicles: Physiological Role and Signalling Properties of Extracellular Membrane Vesicles. Int J Mol Sci 2016; 17:171. [PMID: 26861302 PMCID: PMC4783905 DOI: 10.3390/ijms17020171] [Citation(s) in RCA: 199] [Impact Index Per Article: 24.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2015] [Accepted: 09/24/2015] [Indexed: 02/06/2023] Open
Abstract
Extracellular vesicles (EVs) are a heterogeneous population of secreted membrane vesicles, with distinct biogenesis routes, biophysical properties and different functions both in physiological conditions and in disease. The release of EVs is a widespread biological process, which is conserved across species. In recent years, numerous studies have demonstrated that several bioactive molecules are trafficked with(in) EVs, such as microRNAs, mRNAs, proteins and lipids. The understanding of their final impact on the biology of specific target cells remains matter of intense debate in the field. Also, EVs have attracted great interest as potential novel cell-free therapeutics. Here we describe the proposed physiological and pathological functions of EVs, with a particular focus on their molecular content. Also, we discuss the advances in the knowledge of the mechanisms regulating the secretion of EV-associated molecules and the specific pathways activated upon interaction with the target cell, highlighting the role of EVs in the context of the immune system and as mediators of the intercellular signalling in the brain.
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Affiliation(s)
- Nunzio Iraci
- Wellcome Trust-Medical Research Council Stem Cell Institute, Clifford Allbutt Building-Cambridge Biosciences Campus, Department of Clinical Neurosciences, and NIHR Biomedical Research Centre, University of Cambridge, Hills Road CB2 0PY, UK.
| | - Tommaso Leonardi
- Wellcome Trust-Medical Research Council Stem Cell Institute, Clifford Allbutt Building-Cambridge Biosciences Campus, Department of Clinical Neurosciences, and NIHR Biomedical Research Centre, University of Cambridge, Hills Road CB2 0PY, UK.
- EMBL-European Bioinformatics Institute, Wellcome Trust Genome Campus, Hinxton CB10 1SD, UK.
| | - Florian Gessler
- Wellcome Trust-Medical Research Council Stem Cell Institute, Clifford Allbutt Building-Cambridge Biosciences Campus, Department of Clinical Neurosciences, and NIHR Biomedical Research Centre, University of Cambridge, Hills Road CB2 0PY, UK.
| | - Beatriz Vega
- Wellcome Trust-Medical Research Council Stem Cell Institute, Clifford Allbutt Building-Cambridge Biosciences Campus, Department of Clinical Neurosciences, and NIHR Biomedical Research Centre, University of Cambridge, Hills Road CB2 0PY, UK.
| | - Stefano Pluchino
- Wellcome Trust-Medical Research Council Stem Cell Institute, Clifford Allbutt Building-Cambridge Biosciences Campus, Department of Clinical Neurosciences, and NIHR Biomedical Research Centre, University of Cambridge, Hills Road CB2 0PY, UK.
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Abstract
Tumor-derived exosomes (TEX) are emerging as a new type of cancer biomarker. TEX are membrane-bound, virus-size vesicles of endocytic origin present in all body fluids of cancer patients. Based on the expanding albeit incomplete knowledge of their biogenesis, secretion by tumor cells and cancer cell-specific molecular and genetic contents, TEX are viewed as promising, clinically-relevant surrogates of cancer progression and response to therapy. Preliminary proteomic, genetic and functional profiling of tumor cell-derived or cancer plasma-derived exosomes confirms their unique characteristics. Alterations in protein or nucleic acid profiles of exosomes in plasma of cancer patients responding to therapies appear to correlate with clinical endpoints. However, methods for TEX isolation and separation from the bulk of human plasma-derived exosomes are not yet established and their role as biomarkers remains to be confirmed. Further development and validation of TEX as noninvasive, liquid equivalents of tumor biopsies are necessary to move this effort forward.
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Affiliation(s)
- Theresa L. Whiteside
- University of Pittsburgh Cancer Institute, Pittsburgh, PA 15213, Departments of Pathology, Immunology and Otolaryngology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, , Phone: 412-624-0096, FAX: 412-624-0264
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128
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McKelvey KJ, Powell KL, Ashton AW, Morris JM, McCracken SA. Exosomes: Mechanisms of Uptake. J Circ Biomark 2015; 4:7. [PMID: 28936243 PMCID: PMC5572985 DOI: 10.5772/61186] [Citation(s) in RCA: 282] [Impact Index Per Article: 31.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2015] [Accepted: 06/30/2015] [Indexed: 12/21/2022] Open
Abstract
Exosomes are 30–100 nm microvesicles which contain complex cellular signals of RNA, protein and lipids. Because of this, exosomes are implicated as having limitless therapeutic potential for the treatment of cancer, pregnancy complications, infections, and autoimmune diseases. To date we know a considerable amount about exosome biogenesis and secretion, but there is a paucity of data regarding the uptake of exosomes by immune and non-immune cell types (e.g., cancer cells) and the internal signalling pathways by which these exosomes elicit a cellular response. Answering these questions is of paramount importance.
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Affiliation(s)
- Kelly J McKelvey
- Division of Perinatal Medicine, Kolling Institute of Medical Research, University of Sydney at Royal North Shore Hospital, St Leonards, NSW, Australia
| | - Katie L Powell
- Division of Perinatal Medicine, Kolling Institute of Medical Research, University of Sydney at Royal North Shore Hospital, St Leonards, NSW, Australia.,Pathology North, NSW Health Pathology at Royal North Shore Hospital, St Leonards, NSW, Australia
| | - Anthony W Ashton
- Division of Perinatal Medicine, Kolling Institute of Medical Research, University of Sydney at Royal North Shore Hospital, St Leonards, NSW, Australia
| | - Jonathan M Morris
- Division of Perinatal Medicine, Kolling Institute of Medical Research, University of Sydney at Royal North Shore Hospital, St Leonards, NSW, Australia.,Department of Obstetrics and Gynaecology, Royal North Shore Hospital, St Leonards, NSW, Australia
| | - Sharon A McCracken
- Division of Perinatal Medicine, Kolling Institute of Medical Research, University of Sydney at Royal North Shore Hospital, St Leonards, NSW, Australia
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129
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An T, Qin S, Xu Y, Tang Y, Huang Y, Situ B, Inal JM, Zheng L. Exosomes serve as tumour markers for personalized diagnostics owing to their important role in cancer metastasis. J Extracell Vesicles 2015; 4:27522. [PMID: 26095380 PMCID: PMC4475684 DOI: 10.3402/jev.v4.27522] [Citation(s) in RCA: 207] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2015] [Revised: 05/24/2015] [Accepted: 05/26/2015] [Indexed: 12/18/2022] Open
Abstract
Exosomes, membrane vesicles of 40–100 nm in diameter, are derived from endosomes in various cells. The bioactive molecules specifically packed into exosomes can be horizontally transferred into recipient cells changing their biological properties, by which tumour cells continuously modify their surrounding microenvironment and distant target cells favouring cancer metastasis. It has been suspected for a long time that exosomes participate in the whole process of tumour metastasis. Although there is much unknown and many controversies in the role of cancer exosome, the major contribution of tumour-associated exosomes to different steps of cancer metastasis are demonstrated in this review. Mainly because these exosomes are easily accessible and capable of representing their parental cells, exosomes draw much attention as a promising biomarker for tumour screening, diagnosis and prognosis. Currently, researchers have found numerous biomarkers in exosomes with great potential to be utilized in personalized medicine. In this article, we summarize the roles of biomarkers, which are validated by clinical samples. Even though many conundrums remain, such as exosome extraction, large multicentre validation of biomarkers and data interpretation, exosomes are certain to be used in clinical practice in the near future as the field rapidly expands.
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Affiliation(s)
- Taixue An
- Department of Laboratory Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, People's Republic of China
| | - Sihua Qin
- Department of Laboratory Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, People's Republic of China
| | - Yong Xu
- Department of Laboratory Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, People's Republic of China
| | - Yueting Tang
- Department of Laboratory Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, People's Republic of China
| | - Yiyao Huang
- Department of Laboratory Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, People's Republic of China
| | - Bo Situ
- Department of Laboratory Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, People's Republic of China
| | - Jameel M Inal
- Cellular and Molecular Immunology Research Centre, School of Human Sciences, London Metropolitan University, London, UK;
| | - Lei Zheng
- Department of Laboratory Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, People's Republic of China;
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130
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Miller IV, Grunewald TGP. Tumour-derived exosomes: Tiny envelopes for big stories. Biol Cell 2015; 107:287-305. [PMID: 25923825 DOI: 10.1111/boc.201400095] [Citation(s) in RCA: 67] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2014] [Accepted: 04/24/2015] [Indexed: 12/14/2022]
Abstract
The discovery of exosomes, which are small, 30-100 nm sized extracellular vesicles that are released by virtual all cells, has initiated a rapidly expanding and vibrant research field. Current investigations are mainly directed toward the role of exosomes in intercellular communication and their potential value as biomarkers for a broad set of diseases. By horizontal transfer of molecular information such as micro RNAs, messenger RNAs or proteins, as well as by receptor-cell interactions, exosomes are capable to mediate the reprogramming of surrounding cells. Herein, we review how especially cancer cells take advantage of this mechanism to influence their microenvironment in favour of immune escape, therapy resistance, tumour growth and metastasis. Moreover, we provide a comprehensive microarray analysis (n > 1970) to study the expression patterns of genes known to be intimately involved in exosome biogenesis across 26 different cancer entities and a normal tissue atlas. Consistent with the elevated production of exosomes observed in cancer patient plasma, we found a significant overexpression especially of RAB27A, CHMP4C and SYTL4 in the corresponding cancer entities as compared to matched normal tissues. Finally, we discuss the immune-modulatory and anti-tumorigenic functions of exosomes as well as innovative approaches to specifically target the exosomal circuits in experimental cancer therapy.
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Affiliation(s)
- Isabella V Miller
- Department of Medicine II, Würzburg University Medical Centre, Würzburg, 97080, Germany
| | - Thomas G P Grunewald
- Laboratory for Paediatric Sarcoma Biology, Institute for Pathology of the LMU Munich, Munich, 80337, Germany
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131
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Chaiyadet S, Sotillo J, Smout M, Cantacessi C, Jones MK, Johnson MS, Turnbull L, Whitchurch CB, Potriquet J, Laohaviroj M, Mulvenna J, Brindley PJ, Bethony JM, Laha T, Sripa B, Loukas A. Carcinogenic Liver Fluke Secretes Extracellular Vesicles That Promote Cholangiocytes to Adopt a Tumorigenic Phenotype. J Infect Dis 2015; 212:1636-45. [PMID: 25985904 PMCID: PMC4621255 DOI: 10.1093/infdis/jiv291] [Citation(s) in RCA: 115] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2015] [Accepted: 05/09/2015] [Indexed: 12/16/2022] Open
Abstract
Background. Throughout Asia, there is an unprecedented link between cholangiocarcinoma and infection with the liver fluke Opisthorchis viverrini. Multiple processes, including chronic inflammation and secretion of parasite proteins into the biliary epithelium, drive infection toward cancer. Until now, the mechanism and effects of parasite protein entry into cholangiocytes was unknown. Methods. Various microscopy techniques were used to identify O. viverrini extracellular vesicles (EVs) and their internalization by human cholangiocytes. Using mass spectrometry we characterized the EV proteome and associated changes in cholangiocytes after EV uptake, and we detected EV proteins in bile of infected hamsters and humans. Cholangiocyte proliferation and interleukin 6 (IL-6) secretion was measured to assess the impact of EV internalization. Results. EVs were identified in fluke culture medium and bile specimens from infected hosts. EVs internalized by cholangiocytes drove cell proliferation and IL-6 secretion and induced changes in protein expression associated with endocytosis, wound repair, and cancer. Antibodies to an O. viverrini tetraspanin blocked EV uptake and IL-6 secretion by cholangiocytes. Conclusions. This is the first time that EVs from a multicellular pathogen have been identified in host tissues. Our findings imply a role for O. viverrini EVs in pathogenesis and highlight an approach to vaccine development for this infectious cancer.
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Affiliation(s)
- Sujittra Chaiyadet
- Biomedical Sciences, Graduate School Centre for Biodiscovery and Molecular Development of Therapeutics, Australian Institute of Tropical Health and Medicine, James Cook University, Cairns
| | - Javier Sotillo
- Centre for Biodiscovery and Molecular Development of Therapeutics, Australian Institute of Tropical Health and Medicine, James Cook University, Cairns
| | - Michael Smout
- Centre for Biodiscovery and Molecular Development of Therapeutics, Australian Institute of Tropical Health and Medicine, James Cook University, Cairns
| | - Cinzia Cantacessi
- Centre for Biodiscovery and Molecular Development of Therapeutics, Australian Institute of Tropical Health and Medicine, James Cook University, Cairns Department of Veterinary Medicine, University of Cambridge
| | - Malcolm K Jones
- QIMR Berghofer Medical Research Institute, Brisbane School of Veterinary Sciences, University of Queensland, Gatton
| | | | - Lynne Turnbull
- iThree Institute, University of Technology Sydney, Australia
| | | | | | | | | | - Paul J Brindley
- Department of Microbiology, Immunology and Tropical Medicine, and Research Center for Neglected Diseases of Poverty, George Washington University, Washington D.C
| | - Jeffrey M Bethony
- Department of Microbiology, Immunology and Tropical Medicine, and Research Center for Neglected Diseases of Poverty, George Washington University, Washington D.C
| | - Thewarach Laha
- Department of Parasitology, Faculty of Medicine, Khon Kaen University, Thailand
| | | | - Alex Loukas
- Centre for Biodiscovery and Molecular Development of Therapeutics, Australian Institute of Tropical Health and Medicine, James Cook University, Cairns
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132
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Wiklander OPB, Nordin JZ, O'Loughlin A, Gustafsson Y, Corso G, Mäger I, Vader P, Lee Y, Sork H, Seow Y, Heldring N, Alvarez-Erviti L, Smith CIE, Le Blanc K, Macchiarini P, Jungebluth P, Wood MJA, Andaloussi SE. Extracellular vesicle in vivo biodistribution is determined by cell source, route of administration and targeting. J Extracell Vesicles 2015; 4:26316. [PMID: 25899407 PMCID: PMC4405624 DOI: 10.3402/jev.v4.26316] [Citation(s) in RCA: 999] [Impact Index Per Article: 111.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Revised: 03/17/2015] [Accepted: 03/19/2015] [Indexed: 12/13/2022] Open
Abstract
Extracellular vesicles (EVs) have emerged as important mediators of intercellular communication in a diverse range of biological processes. For future therapeutic applications and for EV biology research in general, understanding the in vivo fate of EVs is of utmost importance. Here we studied biodistribution of EVs in mice after systemic delivery. EVs were isolated from 3 different mouse cell sources, including dendritic cells (DCs) derived from bone marrow, and labelled with a near-infrared lipophilic dye. Xenotransplantation of EVs was further carried out for cross-species comparison. The reliability of the labelling technique was confirmed by sucrose gradient fractionation, organ perfusion and further supported by immunohistochemical staining using CD63-EGFP probed vesicles. While vesicles accumulated mainly in liver, spleen, gastrointestinal tract and lungs, differences related to EV cell origin were detected. EVs accumulated in the tumour tissue of tumour-bearing mice and, after introduction of the rabies virus glycoprotein-targeting moiety, they were found more readily in acetylcholine-receptor-rich organs. In addition, the route of administration and the dose of injected EVs influenced the biodistribution pattern. This is the first extensive biodistribution investigation of EVs comparing the impact of several different variables, the results of which have implications for the design and feasibility of therapeutic studies using EVs.
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Affiliation(s)
| | - Joel Z Nordin
- Department of Laboratory Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Aisling O'Loughlin
- Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford, United Kingdom
| | - Ylva Gustafsson
- Advanced Centre for Translational Regenerative Medicine, Department for Clinical Science, Intervention and Technology, Karolinska Institutet, Stockholm, Sweden
| | - Giulia Corso
- Department of Laboratory Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Imre Mäger
- Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford, United Kingdom.,Institute of Technology, University of Tartu, Tartu, Estonia
| | - Pieter Vader
- Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford, United Kingdom
| | - Yi Lee
- Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford, United Kingdom
| | - Helena Sork
- Department of Laboratory Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Yiqi Seow
- Molecular Engineering Laboratory, Agency for Science, Technology and Research (A*STAR), Singapore
| | - Nina Heldring
- Department of Laboratory Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Lydia Alvarez-Erviti
- Department of Clinical Neuroscience, Institute of Neurology, University College London, London, United Kingdom
| | - C I Edvard Smith
- Department of Laboratory Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Katarina Le Blanc
- Department of Laboratory Medicine, Karolinska Institutet, Stockholm, Sweden.,Haematology Centre, Karolinska University Hospital, Stockholm, Sweden
| | - Paolo Macchiarini
- Advanced Centre for Translational Regenerative Medicine, Department for Clinical Science, Intervention and Technology, Karolinska Institutet, Stockholm, Sweden
| | - Philipp Jungebluth
- Advanced Centre for Translational Regenerative Medicine, Department for Clinical Science, Intervention and Technology, Karolinska Institutet, Stockholm, Sweden.,Department of Thoracic Surgery, Thoraxklinik, Heidelberg University, Heidelberg, Germany
| | - Matthew J A Wood
- Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford, United Kingdom
| | - Samir El Andaloussi
- Department of Laboratory Medicine, Karolinska Institutet, Stockholm, Sweden.,Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford, United Kingdom;
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133
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Vered M, Lehtonen M, Hotakainen L, Pirilä E, Teppo S, Nyberg P, Sormunen R, Zlotogorski-Hurvitz A, Salo T, Dayan D. Caveolin-1 accumulation in the tongue cancer tumor microenvironment is significantly associated with poor prognosis: an in-vivo and in-vitro study. BMC Cancer 2015; 15:25. [PMID: 25633184 PMCID: PMC4318139 DOI: 10.1186/s12885-015-1030-6] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2014] [Accepted: 01/20/2015] [Indexed: 12/27/2022] Open
Abstract
Background Caveolin-1 (CAV1) may be upregulated by hypoxia and acts in a tumor-dependent manner. We investigated CAV1 in tongue squamous cell carcinoma (TSCC) and its association with clinical outcomes, and studied in vitro possible ways for CAV1 accumulation in the tumor microenvironment (TME). Methods TSCC cases (N = 64) were immunohistochemically stained for CAV1. Scores were separately assessed in the tumor and TME and plotted for association with recurrence and survival (univariate analysis with log-rank test). In vitro studies were performed on a 3D myoma organotypic model, a mimicker of TME. Prior to monoculturing HSC-3 tongue cancer cells, the model underwent modifications in oxygenation level (1%O2 hypoxia to upregulate CAV1) and/or in the amount of natural soluble factors [deleted by 14-day rinsing (rinsed myoma, RM), to allow only HSC-3-derived factors to act]. Controls included normoxia (21%O2) and naturally occurring soluble factors (intact myoma, IM). HSC-3 cells were also co-cultured with CaDEC12 cells (fibroblasts exposed to human tongue cancer). CAV1 expression and cellular distribution were examined in different cellular components in hypoxic and rinsed myoma assays. Twist served as a marker for the process of epithelial-mesenchymal transition (EMT). Exosomes isolated from HSC-3 media were investigated for containing CAV1. Results Expression of CAV1 in TSCC had a higher score in TME than in the tumor cells and a negative impact on recurrence (p = 0.01) and survival (p = 0.003). Monocultures of HSC-3 revealed expression of CAV1 mainly in the TME-like myoma assay, similar to TSCC. CAV1+, alpha-smooth muscle actin (αSMA) + and Twist + CAF-like cells were observed surrounding the invading HSC-3, possibly reflecting EMT. RM findings were similar to IM, inferring action of HSC-3 derived factors, and no differences were seen when hypoxia was induced. HSC-3-CaDEC12 co-cultures revealed CAV1+, αSMA+ and cytokeratin-negative CAF-like cells, raising the possibility of CaDEC12 cells gaining a CAF phenotype. HSC-3-derived exosomes were loaded with CAV1. Conclusions Accumulation of CAV1-TME in TSCC had a negative prognostic value. In vitro studies showed the presence of CAV1 in cancer cells undergoing EMT and in fibroblasts undergoing trans-differentiation to CAFs. CAV1 delivery to the TME involved cancer cell-derived exosomes.
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Affiliation(s)
- Marilena Vered
- Department of Oral Pathology and Oral Medicine, School of Dental Medicine, Tel Aviv University, Tel Aviv, 69978, Israel. .,Institute of Pathology, The Chaim Sheba Medical Center, Tel Hashomer, Israel.
| | - Meri Lehtonen
- Department of Diagnostics and Oral Medicine, Institute of Dentistry, University of Oulu, Oulu, Finland.
| | - Lari Hotakainen
- Department of Diagnostics and Oral Medicine, Institute of Dentistry, University of Oulu, Oulu, Finland.
| | - Emma Pirilä
- Department of Diagnostics and Oral Medicine, Institute of Dentistry, University of Oulu, Oulu, Finland.
| | - Susanna Teppo
- Department of Diagnostics and Oral Medicine, Institute of Dentistry, University of Oulu, Oulu, Finland.
| | - Pia Nyberg
- Department of Diagnostics and Oral Medicine, Institute of Dentistry, University of Oulu, Oulu, Finland. .,Oulu University Hospital, Oulu, Finland.
| | - Raija Sormunen
- Biocenter Oulu, University of Oulu, Oulu, Finland. .,Medical Research Center, Oulu, Finland.
| | - Ayelet Zlotogorski-Hurvitz
- Department of Oral Pathology and Oral Medicine, School of Dental Medicine, Tel Aviv University, Tel Aviv, 69978, Israel.
| | - Tuula Salo
- Department of Diagnostics and Oral Medicine, Institute of Dentistry, University of Oulu, Oulu, Finland. .,Oulu University Hospital, Oulu, Finland. .,Biocenter Oulu, University of Oulu, Oulu, Finland. .,Medical Research Center, Oulu, Finland. .,Institute of Dentistry, University of Helsinki, Helsinki, Finland.
| | - Dan Dayan
- Department of Oral Pathology and Oral Medicine, School of Dental Medicine, Tel Aviv University, Tel Aviv, 69978, Israel.
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134
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Tong M, Chamley LW. Placental extracellular vesicles and feto-maternal communication. Cold Spring Harb Perspect Med 2015; 5:a023028. [PMID: 25635060 DOI: 10.1101/cshperspect.a023028] [Citation(s) in RCA: 90] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The human placenta is an anatomically unique structure that extrudes a variety of extracellular vesicles into the maternal blood (including syncytial nuclear aggregates, microvesicles, and nanovesicles). Large quantities of extracellular vesicles are produced by the placenta in both healthy and diseased pregnancies. Since their first description more than 120 years ago, placental extracellular vesicles are only now being recognized as important carriers for proteins, lipids, and nucleic acids, which may play a crucial role in feto-maternal communication. Here, we summarize the current literature on the cargos of placental extracellular vesicles and the known effects of such vesicles on maternal cells/systems, especially those of the maternal immune and vascular systems.
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Affiliation(s)
- M Tong
- Department of Obstetrics and Gynecology, University of Auckland, Grafton, Auckland 1142, New Zealand
| | - L W Chamley
- Department of Obstetrics and Gynecology, University of Auckland, Grafton, Auckland 1142, New Zealand
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135
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Hulme RS, Higginbottom A, Palmer J, Partridge LJ, Monk PN. Distinct regions of the large extracellular domain of tetraspanin CD9 are involved in the control of human multinucleated giant cell formation. PLoS One 2014; 9:e116289. [PMID: 25551757 PMCID: PMC4281222 DOI: 10.1371/journal.pone.0116289] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2014] [Accepted: 12/08/2014] [Indexed: 11/19/2022] Open
Abstract
Multinucleated giant cells, formed by the fusion of monocytes/macrophages, are features of chronic granulomatous inflammation associated with infections or the persistent presence of foreign material. The tetraspanins CD9 and CD81 regulate multinucleated giant cell formation: soluble recombinant proteins corresponding to the large extracellular domain (EC2) of human but not mouse CD9 can inhibit multinucleated giant cell formation, whereas human CD81 EC2 can antagonise this effect. Tetraspanin EC2 are all likely to have a conserved three helix sub-domain and a much less well-conserved or hypervariable sub-domain formed by short helices and interconnecting loops stabilised by two or more disulfide bridges. Using CD9/CD81 EC2 chimeras and point mutants we have mapped the specific regions of the CD9 EC2 involved in multinucleated giant cell formation. These were primarily located in two helices, one in each sub-domain. The cysteine residues involved in the formation of the disulfide bridges in CD9 EC2 were all essential for inhibitory activity but a conserved glycine residue in the tetraspanin-defining 'CCG' motif was not. A tyrosine residue in one of the active regions that is not conserved between human and mouse CD9 EC2, predicted to be solvent-exposed, was found to be only peripherally involved in this activity. We have defined two spatially-distinct sites on the CD9 EC2 that are required for inhibitory activity. Agents that target these sites could have therapeutic applications in diseases in which multinucleated giant cells play a pathogenic role.
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Affiliation(s)
- Rachel S. Hulme
- Department of Molecular Biology and Biotechnology, University of Sheffield, Sheffield, United Kingdom
| | - Adrian Higginbottom
- Department of Neuroscience, University of Sheffield Medical School, Sheffield, United Kingdom
| | - John Palmer
- Department of Molecular Biology and Biotechnology, University of Sheffield, Sheffield, United Kingdom
| | - Lynda J. Partridge
- Department of Molecular Biology and Biotechnology, University of Sheffield, Sheffield, United Kingdom
| | - Peter N. Monk
- Department of Infection and Immunity, University of Sheffield Medical School, Sheffield, United Kingdom
- * E-mail:
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136
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Smyth TJ, Redzic JS, Graner MW, Anchordoquy TJ. Examination of the specificity of tumor cell derived exosomes with tumor cells in vitro. BIOCHIMICA ET BIOPHYSICA ACTA 2014; 1838:2954-65. [PMID: 25102470 PMCID: PMC5657189 DOI: 10.1016/j.bbamem.2014.07.026] [Citation(s) in RCA: 132] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2014] [Revised: 07/18/2014] [Accepted: 07/28/2014] [Indexed: 12/11/2022]
Abstract
Small endogenous vesicles called exosomes are beginning to be explored as drug delivery vehicles. The in vivo targets of exosomes are poorly understood; however, they are believed to be important in cell-to-cell communication and may play a prominent role in cancer metastasis. We aimed to elucidate whether cancer derived exosomes can be used as drug delivery vehicles that innately target tumors over normal tissue. Our in vitro results suggest that while there is some specificity towards cancer cells over "immortalized" cells, it is unclear if the difference is sufficient to achieve precise in vivo targeting. Additionally, we found that exosomes associate with their cellular targets to a significantly greater extent (>10-fold) than liposomes of a similar size. Studies on the association of liposomes mimicking the unique lipid content of exosomes revealed that the lipid composition contributes significantly to cellular adherence/internalization. Cleavage of exosome surface proteins yielded exosomes exhibiting reduced association with their cellular targets, demonstrating the importance of proteins in binding/internalization. Furthermore, although acidic conditions are known to augment the metastatic potential of tumors, we found that cells cultured at low pH released exosomes with significantly less potential for cellular association than cells cultured at physiological pH.
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Affiliation(s)
- Tyson J Smyth
- University of Colorado Denver, Anschutz Medical Campus, Skaggs School of Pharmacy and Pharmaceutical Sciences, Aurora, CO, USA.
| | - Jasmina S Redzic
- University of Colorado Denver, Anschutz Medical Campus, Department of Neurosurgery, Aurora, CO, USA
| | - Michael W Graner
- University of Colorado Denver, Anschutz Medical Campus, Department of Neurosurgery, Aurora, CO, USA
| | - Thomas J Anchordoquy
- University of Colorado Denver, Anschutz Medical Campus, Skaggs School of Pharmacy and Pharmaceutical Sciences, Aurora, CO, USA.
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137
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Abstract
Mesenchymal stem cells (MSCs), whose mechanism of action is predominantly paracrine, are being widely tested for the treatment of a variety of human diseases. No one factor has been proven sufficient to mediate the therapeutic effects of MSCs. However, exosomes--membrane vesicles secreted by many cells, including MSCs--are appealing candidates as vectors of their efficacy. Exosomes can transport and deliver a large cargo of proteins, lipids, and nucleic acids and can modify cell and organ function. In addition to their key role as vehicles of intercellular communication, exosomes are increasingly recognized as biomarkers and prognosticators of disease. Moreover, they have the potential to be used as vehicles of gene and drug delivery for clinical application. This article reviews the biogenesis of exosomes, their molecular composition, and their role as messengers of intercellular communication, focusing on their potential as therapeutic vectors for stem cell therapy.
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Affiliation(s)
- Stella Kourembanas
- Division of Newborn Medicine, Boston Children's Hospital, Boston, Massachusetts 02115;
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138
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Mulcahy LA, Pink RC, Carter DRF. Routes and mechanisms of extracellular vesicle uptake. J Extracell Vesicles 2014; 3:24641. [PMID: 25143819 PMCID: PMC4122821 DOI: 10.3402/jev.v3.24641] [Citation(s) in RCA: 1739] [Impact Index Per Article: 173.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2014] [Revised: 07/03/2014] [Accepted: 07/03/2014] [Indexed: 12/14/2022] Open
Abstract
Extracellular vesicles (EVs) are small vesicles released by donor cells that can be taken up by recipient cells. Despite their discovery decades ago, it has only recently become apparent that EVs play an important role in cell-to-cell communication. EVs can carry a range of nucleic acids and proteins which can have a significant impact on the phenotype of the recipient. For this phenotypic effect to occur, EVs need to fuse with target cell membranes, either directly with the plasma membrane or with the endosomal membrane after endocytic uptake. EVs are of therapeutic interest because they are deregulated in diseases such as cancer and they could be harnessed to deliver drugs to target cells. It is therefore important to understand the molecular mechanisms by which EVs are taken up into cells. This comprehensive review summarizes current knowledge of EV uptake mechanisms. Cells appear to take up EVs by a variety of endocytic pathways, including clathrin-dependent endocytosis, and clathrin-independent pathways such as caveolin-mediated uptake, macropinocytosis, phagocytosis, and lipid raft–mediated internalization. Indeed, it seems likely that a heterogeneous population of EVs may gain entry into a cell via more than one route. The uptake mechanism used by a given EV may depend on proteins and glycoproteins found on the surface of both the vesicle and the target cell. Further research is needed to understand the precise rules that underpin EV entry into cells.
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Affiliation(s)
- Laura Ann Mulcahy
- Department of Biological and Medical Science, Faculty of Health and Life Sciences, Oxford Brookes University, Oxford, UK
| | - Ryan Charles Pink
- Department of Biological and Medical Science, Faculty of Health and Life Sciences, Oxford Brookes University, Oxford, UK
| | - David Raul Francisco Carter
- Department of Biological and Medical Science, Faculty of Health and Life Sciences, Oxford Brookes University, Oxford, UK
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139
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Boes KE, Ribeiro JMC, Wong A, Harrington LC, Wolfner MF, Sirot LK. Identification and characterization of seminal fluid proteins in the Asian tiger mosquito, Aedes albopictus. PLoS Negl Trop Dis 2014; 8:e2946. [PMID: 24945155 PMCID: PMC4063707 DOI: 10.1371/journal.pntd.0002946] [Citation(s) in RCA: 56] [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: 01/08/2014] [Accepted: 05/02/2014] [Indexed: 12/20/2022] Open
Abstract
The Asian tiger mosquito (Aedes albopictus) is an important vector for pathogens that affect human health, including the viruses that cause dengue and Chikungunya fevers. It is also one of the world's fastest-spreading invasive species. For these reasons, it is crucial to identify strategies for controlling the reproduction and spread of this mosquito. During mating, seminal fluid proteins (Sfps) are transferred from male mosquitoes to females, and these Sfps modulate female behavior and physiology in ways that influence reproduction. Despite the importance of Sfps on female reproductive behavior in mosquitoes and other insects, the identity of Sfps in Ae. albopictus has not previously been reported. We used transcriptomics and proteomics to identify 198 Sfps in Ae. albopictus. We discuss possible functions of these Sfps in relation to Ae. albopictus reproduction-related biology. We additionally compare the sequences of these Sfps with proteins (including reported Sfps) in several other species, including Ae. aegypti. While only 72 (36.4%) of Ae. albopictus Sfps have putative orthologs in Ae. aegypti, suggesting low conservation of the complement of Sfps in these species, we find no evidence for an elevated rate of evolution or positive selection in the Sfps that are shared between the two Aedes species, suggesting high sequence conservation of those shared Sfps. Our results provide a foundation for future studies to investigate the roles of individual Sfps on feeding and reproduction in this mosquito. Functional analysis of these Sfps could inform strategies for managing the rate of pathogen transmission by Ae. albopictus.
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Affiliation(s)
- Kathryn E. Boes
- Department of Biology, College of Wooster, Wooster, Ohio, United States of America
| | - José M. C. Ribeiro
- Vector Biology Section, Laboratory of Malaria and Vector Research, National Institute of Allergy and Infectious Diseases, Rockville, Maryland, United States of America
| | - Alex Wong
- Department of Biology, Carleton University, Ottawa, Ontario, Canada
| | - Laura C. Harrington
- Department of Entomology, Cornell University, Ithaca, New York, United States of America
| | - Mariana F. Wolfner
- Department of Molecular Biology and Genetics, Cornell University, Ithaca, New York, United States of America
| | - Laura K. Sirot
- Department of Biology, College of Wooster, Wooster, Ohio, United States of America
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140
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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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141
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Aga M, Bentz GL, Raffa S, Torrisi MR, Kondo S, Wakisaka N, Yoshizaki T, Pagano JS, Shackelford J. Exosomal HIF1α supports invasive potential of nasopharyngeal carcinoma-associated LMP1-positive exosomes. Oncogene 2014; 33:4613-22. [PMID: 24662828 PMCID: PMC4162459 DOI: 10.1038/onc.2014.66] [Citation(s) in RCA: 251] [Impact Index Per Article: 25.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2013] [Revised: 12/30/2013] [Accepted: 01/01/2014] [Indexed: 02/06/2023]
Abstract
It has emerged recently that exosomes are potential carriers of pro-tumorigenic factors that participate in oncogenesis. However, whether oncogenic transcription factors are transduced by exosomes is unknown. Hypoxia-inducible factor-1α (HIF1α) transcriptionally regulates numerous key aspects of tumor development and progression by promoting a more aggressive tumor phenotype, characterized by increased proliferation and invasiveness coupled with neoangiogenesis. It has been shown that the principal oncoprotein of Epstein–Barr virus (EBV), latent membrane protein 1 (LMP1), drives oncogenic processes and tumor progression of the highly invasive EBV malignancy, nasopharyngeal carcinoma (NPC). We now demonstrate that endogenous HIF1α is detectable in exosomes and that LMP1 significantly increases levels of HIF1α in exosomes. HIF1 recovered from exosomes retains DNA-binding activity and is transcriptionally active in recipient cells after exosome uptake. We also show that treatment of EBV-negative cells with LMP1-exosomes increases migration and invasiveness of NP cell lines in functional assays, which correlates with the phenotype associated with epithelial–mesenchymal transition (EMT). In addition, we provide evidence that HIF1α itself participates in exosome-mediated pro-metastatic effects in recipient cells, as exosome-mediated delivery of active and inactive forms of HIF1α results in reciprocal changes in the expression of E- and N-cadherins associated with EMT. Further, immunohistochemical analysis of NPC tumor tissues revealed direct correlation between protein levels of LMP1 and of the endosome/exosome marker tetraspanin, CD63, which suggests an increase in exosome formation in this EBV-positive malignancy. We hypothesize that exosome-mediated transfer of functional pro-metastatic factors by LMP1-positive NPC cells to surrounding tumor cells promotes cancer progression.
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Affiliation(s)
- M Aga
- 1] Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, NC, USA [2] Division of Otolaryngology, Graduate School of Medicine, Kanazawa University, Kanazawa, Japan
| | - G L Bentz
- Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, NC, USA
| | - S Raffa
- Dipartimento di Medicina Clinica e Molecolare, Università di Roma La Sapienza, Rome, Italy
| | - M R Torrisi
- Dipartimento di Medicina Clinica e Molecolare, Università di Roma La Sapienza, Rome, Italy
| | - S Kondo
- Division of Otolaryngology, Graduate School of Medicine, Kanazawa University, Kanazawa, Japan
| | - N Wakisaka
- Division of Otolaryngology, Graduate School of Medicine, Kanazawa University, Kanazawa, Japan
| | - T Yoshizaki
- Division of Otolaryngology, Graduate School of Medicine, Kanazawa University, Kanazawa, Japan
| | - J S Pagano
- Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, NC, USA
| | - J Shackelford
- 1] Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, NC, USA [2] Department of Cell Biology and Physioligy, University of North Carolina, Chapel Hill, NC, USA
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142
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Host matrix modulation by tumor exosomes promotes motility and invasiveness. Neoplasia 2014; 15:875-87. [PMID: 23908589 DOI: 10.1593/neo.13786] [Citation(s) in RCA: 194] [Impact Index Per Article: 19.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2013] [Revised: 05/01/2013] [Accepted: 05/13/2013] [Indexed: 12/13/2022] Open
Abstract
Exosomes are important intercellular communicators, where tumor exosomes (TEX) severely influence hematopoiesis and premetastatic organ cells. With the extracellular matrix (ECM) being an essential constituent of non-transformed tissues and tumors, we asked whether exosomes from a metastatic rat tumor also affect the organization of the ECM and whether this has consequences on host and tumor cell motility. TEX bind to individual components of the ECM, the preferential partner depending on the exosomes' adhesion molecule profile such that high CD44 expression is accompanied by hyaluronic acid binding and high α6β4 expression by laminin (LN) 332 binding, which findings were confirmed by antibody blocking. TEX can bind to the tumor matrix already during exosome delivery but also come in contact with distinct organ matrices. Being rich in proteases, TEX modulate the ECM as demonstrated for degradation of collagens, LNs, and fibronectin. Matrix degradation by TEX has severe consequences on tumor and host cell adhesion, motility, and invasiveness. By ECM degradation, TEX also promote host cell proliferation and apoptosis resistance. Taken together, the host tissue ECM modulation by TEX is an important factor in the cross talk between a tumor and the host including premetastatic niche preparation and the recruitment of hematopoietic cells. Reorganization of the ECM by exosomes likely also contributes to organogenesis, physiological and pathologic angiogenesis, wound healing, and clotting after vessel disruption.
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143
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Jia X, Schulte L, Loukas A, Pickering D, Pearson M, Mobli M, Jones A, Rosengren KJ, Daly NL, Gobert GN, Jones MK, Craik DJ, Mulvenna J. Solution structure, membrane interactions, and protein binding partners of the tetraspanin Sm-TSP-2, a vaccine antigen from the human blood fluke Schistosoma mansoni. J Biol Chem 2014; 289:7151-7163. [PMID: 24429291 DOI: 10.1074/jbc.m113.531558] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
The tetraspanins (TSPs) are a family of integral membrane proteins that are ubiquitously expressed at the surface of eukaryotic cells. TSPs mediate a range of processes at the surface of the plasma membrane by providing a scaffold for the assembly of protein complexes known as tetraspanin-enriched microdomains (TEMs). We report here the structure of the surface-exposed EC2 domain from Sm-TSP-2, a TSP from Schistosoma mansoni and one of the better prospects for the development of a vaccine against schistosomiasis. This is the first solution structure of this domain, and our investigations of its interactions with lipid micelles provide a general model for interactions between TSPs, membranes, and other proteins. Using chemical cross-linking, eight potential protein constituents of Sm-TSP-2-mediated TEMs were also identified. These include proteins important for membrane maintenance and repair, providing further evidence for the functional role of Sm-TSP-2- and Sm-TSP-2-mediated TEMs. The identification of calpain, Sm29, and fructose-bisphosphate aldolase, themselves potential vaccine antigens, suggests that the Sm-TSP-2-mediated TEMs could be disrupted via multiple targets. The identification of further Sm-TSP-2-mediated TEM proteins increases the available candidates for multiplex vaccines and/or novel drugs targeting TEMs in the schistosome tegument.
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Affiliation(s)
- Xinying Jia
- Queensland Institute of Medical Research, Brisbane, QLD 4006, Australia
| | - Leigh Schulte
- Queensland Institute of Medical Research, Brisbane, QLD 4006, Australia; The University of Queensland, School of Veterinary Sciences, Gatton, QLD 4343, Australia
| | - Alex Loukas
- Centre for Biodiscovery and Molecular Development of Therapeutics, Queensland Tropical Health Alliance, James Cook University, Cairns, QLD 4878, Australia
| | - Darren Pickering
- Centre for Biodiscovery and Molecular Development of Therapeutics, Queensland Tropical Health Alliance, James Cook University, Cairns, QLD 4878, Australia
| | - Mark Pearson
- Centre for Biodiscovery and Molecular Development of Therapeutics, Queensland Tropical Health Alliance, James Cook University, Cairns, QLD 4878, Australia
| | - Mehdi Mobli
- The University of Queensland, Centre for Advanced Imaging, Brisbane, QLD 4072, Australia
| | - Alun Jones
- The University of Queensland, Institute for Molecular Bioscience, Brisbane, QLD 4072, Australia
| | - Karl J Rosengren
- The University of Queensland, School of Biomedical Sciences, Brisbane, QLD 4072, Australia
| | - Norelle L Daly
- Centre for Biodiscovery and Molecular Development of Therapeutics, Queensland Tropical Health Alliance, James Cook University, Cairns, QLD 4878, Australia
| | - Geoffrey N Gobert
- Queensland Institute of Medical Research, Brisbane, QLD 4006, Australia
| | - Malcolm K Jones
- Queensland Institute of Medical Research, Brisbane, QLD 4006, Australia; The University of Queensland, School of Veterinary Sciences, Gatton, QLD 4343, Australia
| | - David J Craik
- The University of Queensland, Institute for Molecular Bioscience, Brisbane, QLD 4072, Australia
| | - Jason Mulvenna
- Queensland Institute of Medical Research, Brisbane, QLD 4006, Australia; The University of Queensland, School of Biomedical Sciences, Brisbane, QLD 4072, Australia.
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144
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Forterre A, Jalabert A, Chikh K, Pesenti S, Euthine V, Granjon A, Errazuriz E, Lefai E, Vidal H, Rome S. Myotube-derived exosomal miRNAs downregulate Sirtuin1 in myoblasts during muscle cell differentiation. Cell Cycle 2014; 13:78-89. [PMID: 24196440 PMCID: PMC3925739 DOI: 10.4161/cc.26808] [Citation(s) in RCA: 131] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
It has recently been established that exosomes can mediate intercellular cross-talk under normal and pathological conditions through the transfer of specific miRNAs. As muscle cells secrete exosomes, we addressed the question of whether skeletal muscle (SkM) exosomes contained specific miRNAs, and whether they could act as "endocrine signals" during myogenesis. We compared the miRNA repertoires found in exosomes released from C2C12 myoblasts and myotubes and found that 171 and 182 miRNAs were exported into exosomes from myoblasts and myotubes, respectively. Interestingly, some miRNAs were expressed at higher levels in exosomes than in their donor cells and vice versa, indicating a selectivity in the incorporation of miRNAs into exosomes. Moreover miRNAs from C2C12 exosomes were regulated during myogenesis. The predicted target genes of regulated exosomal miRNAs are mainly involved in the control of important signaling pathways for muscle cell differentiation (e.g., Wnt signaling pathway). We demonstrated that exosomes from myotubes can transfer small RNAs (C. elegans miRNAs and siRNA) into myoblasts. Moreover, we present evidence that exosome miRNAs secreted by myotubes are functionally able to silence Sirt1 in myoblasts. As Sirt1 regulates muscle gene expression and differentiation, our results show that myotube-exosome miRNAs could contribute to the commitment of myoblasts in the process of differentiation. Until now, myokines in muscle cell secretome provided a conceptual basis for communication between muscles. Here, we show that miRNA exosomal transfer would be a powerful means by which gene expression is orchestrated to regulate SkM metabolic homeostasis.
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Affiliation(s)
- Alexis Forterre
- Laboratory CarMeN; INSERM 1060; INRA 1235; INSA; University of Lyon; Faculté de Médecine Lyon-Sud; Oullins, France
| | - Audrey Jalabert
- Laboratory CarMeN; INSERM 1060; INRA 1235; INSA; University of Lyon; Faculté de Médecine Lyon-Sud; Oullins, France
| | - Karim Chikh
- Laboratory CarMeN; INSERM 1060; INRA 1235; INSA; University of Lyon; Faculté de Médecine Lyon-Sud; Oullins, France
| | - Sandra Pesenti
- Laboratory CarMeN; INSERM 1060; INRA 1235; INSA; University of Lyon; Faculté de Médecine Lyon-Sud; Oullins, France
| | - Vanessa Euthine
- Laboratory CarMeN; INSERM 1060; INRA 1235; INSA; University of Lyon; Faculté de Médecine Lyon-Sud; Oullins, France
| | - Aurélie Granjon
- Laboratory CarMeN; INSERM 1060; INRA 1235; INSA; University of Lyon; Faculté de Médecine Lyon-Sud; Oullins, France
| | - Elizabeth Errazuriz
- Centre Commun d’Imagerie de Laënnec (CeCIL); SFR Santé Lyon-Est; University of Lyon; Lyon, France
| | - Etienne Lefai
- Laboratory CarMeN; INSERM 1060; INRA 1235; INSA; University of Lyon; Faculté de Médecine Lyon-Sud; Oullins, France
| | - Hubert Vidal
- Laboratory CarMeN; INSERM 1060; INRA 1235; INSA; University of Lyon; Faculté de Médecine Lyon-Sud; Oullins, France
| | - Sophie Rome
- Laboratory CarMeN; INSERM 1060; INRA 1235; INSA; University of Lyon; Faculté de Médecine Lyon-Sud; Oullins, France
- Correspondence to: Sophie Rome,
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145
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Ji H, Greening DW, Barnes TW, Lim JW, Tauro BJ, Rai A, Xu R, Adda C, Mathivanan S, Zhao W, Xue Y, Xu T, Zhu HJ, Simpson RJ. Proteome profiling of exosomes derived from human primary and metastatic colorectal cancer cells reveal differential expression of key metastatic factors and signal transduction components. Proteomics 2013; 13:1672-86. [PMID: 23585443 DOI: 10.1002/pmic.201200562] [Citation(s) in RCA: 258] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2012] [Revised: 03/08/2013] [Accepted: 03/26/2013] [Indexed: 12/14/2022]
Abstract
Exosomes are small extracellular 40-100 nm diameter membrane vesicles of late endosomal origin that can mediate intercellular transfer of RNAs and proteins to assist premetastatic niche formation. Using primary (SW480) and metastatic (SW620) human isogenic colorectal cancer cell lines we compared exosome protein profiles to yield valuable insights into metastatic factors and signaling molecules fundamental to tumor progression. Exosomes purified using OptiPrep™ density gradient fractionation were 40-100 nm in diameter, were of a buoyant density ~1.09 g/mL, and displayed stereotypic exosomal markers TSG101, Alix, and CD63. A major finding was the selective enrichment of metastatic factors (MET, S100A8, S100A9, TNC), signal transduction molecules (EFNB2, JAG1, SRC, TNIK), and lipid raft and lipid raft-associated components (CAV1, FLOT1, FLOT2, PROM1) in exosomes derived from metastatic SW620 cells. Additionally, using cryo-electron microscopy, ultrastructural components in exosomes were identified. A key finding of this study was the detection and colocalization of protein complexes EPCAM-CLDN7 and TNIK-RAP2A in colorectal cancer cell exosomes. The selective enrichment of metastatic factors and signaling pathway components in metastatic colon cancer cell-derived exosomes contributes to our understanding of the cross-talk between tumor and stromal cells in the tumor microenvironment.
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Affiliation(s)
- Hong Ji
- Department of Biochemistry, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria, Australia
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146
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Liu R, Liu J, Ji X, Liu Y. Synthetic nucleic acids delivered by exosomes: a potential therapeutic for generelated metabolic brain diseases. Metab Brain Dis 2013; 28:551-62. [PMID: 24022398 DOI: 10.1007/s11011-013-9434-y] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2013] [Accepted: 08/22/2013] [Indexed: 12/20/2022]
Abstract
Many brain diseases, including Alzheimer's disease, are associated with genetic abnormalities. The search for more effective therapeutic approaches involving nucleic acids like interfering RNA, antisense oligonucleotides and mRNA has drawn much attention in the development of alternatives to virus-based gene therapy. Potentially, nucleic acids could not only specifically down-regulate and degrade misfolded proteins, but also relieve protein deficiencies by directing the translation of functional proteins. However, clinical applications have been stalled by the lack of proper delivery systems. Exosomes are nano-scale extracellular vesicles secreted by nearly all somatic cells. Recent work has revealed that exosomes play special roles in intercellular communication via the horizontal transfer of various RNAs among cells. Recently, the use of exosomes for the delivery of therapeutic nucleic acids to targeted cells has been demonstrated to be a practical approach. Here, we briefly review the general properties of exosomes and introduce three therapeutic nucleic acids. Based upon comparison with other delivery methods, exosomes are proposed as an ideal nucleic acid delivery system for metabolic brain disease therapy.
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147
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Kotzerke K, Mempel M, Aung T, Wulf GG, Urlaub H, Wenzel D, Schön MP, Braun A. Immunostimulatory activity of murine keratinocyte-derived exosomes. Exp Dermatol 2013; 22:650-5. [DOI: 10.1111/exd.12230] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/20/2013] [Indexed: 01/25/2023]
Affiliation(s)
- Kristina Kotzerke
- Department of Dermatology, Venereology, and Allergology; Georg August University; Göttingen; Germany
| | - Martin Mempel
- Department of Dermatology, Venereology, and Allergology; Georg August University; Göttingen; Germany
| | - Thiha Aung
- Department of Hematology and Oncology; Georg August University; Göttingen; Germany
| | - Gerald G. Wulf
- Department of Hematology and Oncology; Georg August University; Göttingen; Germany
| | | | - Dirk Wenzel
- Electron Microscopy Group; Max Planck Institute for Biophysical Chemistry; Göttingen; Germany
| | - Michael P. Schön
- Department of Dermatology, Venereology, and Allergology; Georg August University; Göttingen; Germany
| | - Andrea Braun
- Department of Dermatology, Venereology, and Allergology; Georg August University; Göttingen; Germany
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148
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Schulte L, Lovas E, Green K, Mulvenna J, Gobert GN, Morgan G, Jones MK. Tetraspanin-2 localisation in high pressure frozen and freeze-substituted Schistosoma mansoni adult males reveals its distribution in membranes of tegumentary vesicles. Int J Parasitol 2013; 43:785-93. [DOI: 10.1016/j.ijpara.2013.04.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2013] [Revised: 04/16/2013] [Accepted: 04/17/2013] [Indexed: 10/26/2022]
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149
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de Monasterio-Schrader P, Patzig J, Möbius W, Barrette B, Wagner TL, Kusch K, Edgar JM, Brophy PJ, Werner HB. Uncoupling of neuroinflammation from axonal degeneration in mice lacking the myelin protein tetraspanin-2. Glia 2013; 61:1832-47. [DOI: 10.1002/glia.22561] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2013] [Revised: 07/12/2013] [Accepted: 07/16/2013] [Indexed: 12/11/2022]
Affiliation(s)
| | - Julia Patzig
- Department of Neurogenetics; Max Planck Institute of Experimental Medicine; Göttingen Germany
| | - Wiebke Möbius
- Department of Neurogenetics; Max Planck Institute of Experimental Medicine; Göttingen Germany
- Center for Nanoscale Microscopy and Molecular Physiology of the Brain (CNMPB); Göttingen Germany
| | - Benoit Barrette
- Department of Neurogenetics; Max Planck Institute of Experimental Medicine; Göttingen Germany
| | - Tadzio L. Wagner
- Department of Neurogenetics; Max Planck Institute of Experimental Medicine; Göttingen Germany
| | - Kathrin Kusch
- Department of Neurogenetics; Max Planck Institute of Experimental Medicine; Göttingen Germany
| | - Julia M. Edgar
- Department of Neurogenetics; Max Planck Institute of Experimental Medicine; Göttingen Germany
- Institute of Infection, Immunity and Inflammation, College of Medical, Veterinary and Life Sciences, University of Glasgow; Bearsden Road, Glasgow G61 1QH United Kingdom
| | - Peter J. Brophy
- Centre for Neuroregeneration; University of Edinburgh; United Kingdom
| | - Hauke B. Werner
- Department of Neurogenetics; Max Planck Institute of Experimental Medicine; Göttingen Germany
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150
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Exosomal tumor microRNA modulates premetastatic organ cells. Neoplasia 2013; 15:281-95. [PMID: 23479506 DOI: 10.1593/neo.122010] [Citation(s) in RCA: 278] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2012] [Revised: 01/11/2013] [Accepted: 01/11/2013] [Indexed: 02/06/2023] Open
Abstract
Tumor exosomes educate selected host tissues toward a prometastatic phenotype. We demonstrated this for exosomes of the metastatic rat adenocarcinoma BSp73ASML (ASML), which modulate draining lymph nodes and lung tissue to support settlement of poorly metastatic BSp73ASML-CD44v4-v7 knockdown (ASML-CD44v(kd)) cells. Now, we profiled mRNA and microRNA (miRNA) of ASML(wt) and ASML-CD44v(kd) exosomes to define the pathway(s), whereby exosomes prepare the premetastatic niche. ASML exosomes, recovered in draining lymph nodes after subcutaneous injection, preferentially are taken up by lymph node stroma cells (LnStr) and lung fibroblasts (LuFb) that were chosen as exosome targets. ASML(wt) and ASML-CD44v(kd) exosomes contain a restricted mRNA and miRNA repertoire that differs significantly between the two lines and exosomes thereof due to CD44v6 influencing gene and miRNA transcription/posttranscriptional regulation. Exosomal mRNA and miRNA are recovered in target cells, where transferred miRNA significantly affected mRNA translation. Besides others, this was exemplified for abundant ASML(wt)-exosomal miR-494 and miR-542-3p, which target cadherin-17 (cdh17). Concomitantly, matrix metalloproteinase transcription, accompanying cdh17 down-regulation, was upregulated in LnStr transfected with miR-494 or miR-542-3p or co-cultured with tumor exosomes. Thus, tumor exosomes target non-transformed cells in premetastatic organs and modulate premetastatic organ cells predominantly through transferred miRNA, where miRNA from a metastasizing tumor prepares premetastatic organ stroma cells for tumor cell hosting. Fitting the demands of metastasizing tumor cells, transferred exosomal miRNA mostly affected proteases, adhesion molecules, chemokine ligands, cell cycle- and angiogenesis-promoting genes, and genes engaged in oxidative stress response. The demonstration of function-competent exosomal miRNA in host target cells encourages exploiting exosomes as a therapeutic gene delivery system.
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