401
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Ferrari E, De Palma A, Mauri P. Emerging MS-based platforms for the characterization of tumor-derived exosomes isolated from human biofluids: challenges and promises of MudPIT. Expert Rev Proteomics 2017; 14:757-767. [PMID: 28780902 DOI: 10.1080/14789450.2017.1364629] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
INTRODUCTION Exosomes are small extracellular vesicles of endosomal origin that are produced and released by several type of cells. These vesicles contain different macromolecules: proteins, mRNA, miRNA, mitochondrial DNA, and lipids. Exosomes play an important role in cell-to-cell communication, also promoting cancer progression. Areas covered: Various proteomic approaches have been applied to study exosomes isolated from different human biofluids in search of possible cancer biomarkers. The results of these studies are reported, and pros and cons of each employed technique are described. Gel-free and gel-based mass spectrometry systems are discussed, giving particular emphasis on the innovative multidimensional protein identification technology (MudPIT). Expert commentary: Proteomic studies on exosomes as candidate cancer biomarkers from urine and other body fluids in cancer have shown the potential of MS-based techniques. In particular, MudPIT is a promising tool to be applied in clinical proteomics of cancer.
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Affiliation(s)
- Emanuele Ferrari
- a Institute of Biomedical Technologies , National Research Council of Italy , Segrate , Italy
| | - Antonella De Palma
- a Institute of Biomedical Technologies , National Research Council of Italy , Segrate , Italy
| | - Pierluigi Mauri
- a Institute of Biomedical Technologies , National Research Council of Italy , Segrate , Italy
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402
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Bilawchuk LM, Griffiths CD, Jensen LD, Elawar F, Marchant DJ. The Susceptibilities of Respiratory Syncytial Virus to Nucleolin Receptor Blocking and Antibody Neutralization are Dependent upon the Method of Virus Purification. Viruses 2017; 9:E207. [PMID: 28771197 PMCID: PMC5580464 DOI: 10.3390/v9080207] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Revised: 07/25/2017] [Accepted: 07/27/2017] [Indexed: 12/12/2022] Open
Abstract
Respiratory Syncytial Virus (RSV) that is propagated in cell culture is purified from cellular contaminants that can confound experimental results. A number of different purification methods have been described, including methods that utilize fast protein liquid chromatography (FPLC) and gradient ultracentrifugation. Thus, the constituents and experimental responses of RSV stocks purified by ultracentrifugation in sucrose and by FPLC were analyzed and compared by infectivity assay, Coomassie stain, Western blot, mass spectrometry, immuno-transmission electron microscopy (TEM), and ImageStream flow cytometry. The FPLC-purified RSV had more albumin contamination, but there was less evidence of host-derived exosomes when compared to ultracentrifugation-purified RSV as detected by Western blot and mass spectrometry for the exosome markers superoxide dismutase [Cu-Zn] (SOD1) and the tetraspanin CD63. Although the purified virus stocks were equally susceptible to nucleolin-receptor blocking by the DNA aptamer AS1411, the FPLC-purified RSV was significantly less susceptible to anti-RSV polyclonal antibody neutralization; there was 69% inhibition (p = 0.02) of the sucrose ultracentrifugation-purified RSV, 38% inhibition (p = 0.03) of the unpurified RSV, but statistically ineffective neutralization in the FPLC-purified RSV (22% inhibition; p = 0.30). The amount of RSV neutralization of the purified RSV stocks was correlated with anti-RSV antibody occupancy on RSV particles observed by immuno-TEM. RSV purified by different methods alters the stock composition and morphological characteristics of virions that can lead to different experimental responses.
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Affiliation(s)
- Leanne M Bilawchuk
- Li Ka Shing Institute of Virology, Department of Medical Microbiology and Immunology, University of Alberta, Edmonton, AB T6G 2R3, Canada.
| | - Cameron D Griffiths
- Li Ka Shing Institute of Virology, Department of Medical Microbiology and Immunology, University of Alberta, Edmonton, AB T6G 2R3, Canada.
| | - Lionel D Jensen
- Li Ka Shing Institute of Virology, Department of Medical Microbiology and Immunology, University of Alberta, Edmonton, AB T6G 2R3, Canada.
| | - Farah Elawar
- Li Ka Shing Institute of Virology, Department of Medical Microbiology and Immunology, University of Alberta, Edmonton, AB T6G 2R3, Canada.
| | - David J Marchant
- Li Ka Shing Institute of Virology, Department of Medical Microbiology and Immunology, University of Alberta, Edmonton, AB T6G 2R3, Canada.
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403
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Nuzhat Z, Kinhal V, Sharma S, Rice GE, Joshi V, Salomon C. Tumour-derived exosomes as a signature of pancreatic cancer - liquid biopsies as indicators of tumour progression. Oncotarget 2017; 8:17279-17291. [PMID: 27999198 PMCID: PMC5370040 DOI: 10.18632/oncotarget.13973] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2016] [Accepted: 12/13/2016] [Indexed: 12/21/2022] Open
Abstract
Pancreatic cancer is the fourth most common cause of death due to cancer in the world. It is known to have a poor prognosis, mostly because early stages of the disease are generally asymptomatic. Progress in pancreatic cancer research has been slow, leaving several fundamental questions pertaining to diagnosis and treatment unanswered. Recent studies highlight the putative utility of tissue-specific vesicles (i.e. extracellular vesicles) in the diagnosis of disease onset and treatment monitoring in pancreatic cancer. Extracellular vesicles are membrane-limited structures derived from the cell membrane. They contain specific molecules including proteins, mRNA, microRNAs and non-coding RNAs that are secreted in the extracellular space. Extracellular vesicles can be classified according to their size and/or origin into microvesicles (~150-1000 nm) and exosomes (~40-120 nm). Microvesicles are released by budding from the plasmatic membrane, whereas exosomes are released via the endocytic pathway by fusion of multivesicular bodies with the plasmatic membrane. This endosomal origin means that exosomes contain an abundance of cell-specific biomolecules which may act as a 'fingerprint' of the cell of origin. In this review, we discuss our current knowledge in the diagnosis and treatment of pancreatic cancer, particularly the potential role of EVs in these facets of disease management. In particular, we suggest that as exosomes contain cellular protein and RNA molecules in a cell type-specific manner, they may provide extensive information about the signature of the tumour and pancreatic cancer progression.
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Affiliation(s)
- Zarin Nuzhat
- Exosome Biology Laboratory, Centre for Clinical Diagnostics, University of Queensland Centre for Clinical Research, Royal Brisbane and Women's Hospital, The University of Queensland, Brisbane QLD 4029, Australia
| | - Vyjayanthi Kinhal
- Exosome Biology Laboratory, Centre for Clinical Diagnostics, University of Queensland Centre for Clinical Research, Royal Brisbane and Women's Hospital, The University of Queensland, Brisbane QLD 4029, Australia
| | - Shayna Sharma
- Exosome Biology Laboratory, Centre for Clinical Diagnostics, University of Queensland Centre for Clinical Research, Royal Brisbane and Women's Hospital, The University of Queensland, Brisbane QLD 4029, Australia
| | - Gregory E Rice
- Exosome Biology Laboratory, Centre for Clinical Diagnostics, University of Queensland Centre for Clinical Research, Royal Brisbane and Women's Hospital, The University of Queensland, Brisbane QLD 4029, Australia.,Department of Obstetrics and Gynecology, Ochsner Baptist Hospital, New Orleans, Louisiana, USA
| | | | - Carlos Salomon
- Exosome Biology Laboratory, Centre for Clinical Diagnostics, University of Queensland Centre for Clinical Research, Royal Brisbane and Women's Hospital, The University of Queensland, Brisbane QLD 4029, Australia.,Department of Obstetrics and Gynecology, Ochsner Baptist Hospital, New Orleans, Louisiana, USA
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404
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Raghavan V. Role of exosomes in psychiatric disorders. Asian J Psychiatr 2017; 28:78-79. [PMID: 28784402 DOI: 10.1016/j.ajp.2017.03.032] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Accepted: 03/21/2017] [Indexed: 01/08/2023]
Affiliation(s)
- Vijaya Raghavan
- Program for Neurotrauma, Neuroproteomics & Biomarkers, McKnight Brain Institute, University of Florida, Gainesville, FL 32611, USA; The Departments of Psychiatry, University of Florida, Gainesville, FL 32611, USA; Schizophrenia Research Foundation, R/7A, North Main Road, Anna Nagar West Extension, Chennai, Tamil Nadu 600101, India.
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405
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Furi I, Momen-Heravi F, Szabo G. Extracellular vesicle isolation: present and future. ANNALS OF TRANSLATIONAL MEDICINE 2017; 5:263. [PMID: 28706931 DOI: 10.21037/atm.2017.03.95] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Istvan Furi
- Department of Medicine, University of Massachusetts Medical School, Worcester, MA, USA
| | - Fatemeh Momen-Heravi
- Department of Medicine, University of Massachusetts Medical School, Worcester, MA, USA
| | - Gyongyi Szabo
- Department of Medicine, University of Massachusetts Medical School, Worcester, MA, USA
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406
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Klingeborn M, Dismuke WM, Bowes Rickman C, Stamer WD. Roles of exosomes in the normal and diseased eye. Prog Retin Eye Res 2017; 59:158-177. [PMID: 28465248 PMCID: PMC5537591 DOI: 10.1016/j.preteyeres.2017.04.004] [Citation(s) in RCA: 111] [Impact Index Per Article: 15.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2016] [Revised: 04/28/2017] [Accepted: 04/28/2017] [Indexed: 12/21/2022]
Abstract
Exosomes are nanometer-sized vesicles that are released by cells in a controlled fashion and mediate a plethora of extra- and intercellular activities. Some key functions of exosomes include cell-cell communication, immune modulation, extracellular matrix turnover, stem cell division/differentiation, neovascularization and cellular waste removal. While much is known about their role in cancer, exosome function in the many specialized tissues of the eye is just beginning to undergo rigorous study. Here we review current knowledge of exosome function in the visual system in the context of larger bodies of data from other fields, in both health and disease. Additionally, we discuss recent advances in the exosome field including use of exosomes as a therapeutic vehicle, exosomes as a source of biomarkers for disease, plus current standards for isolation and validation of exosome populations. Finally, we use this foundational information about exosomes in the eye as a platform to identify areas of opportunity for future research studies.
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Affiliation(s)
- Mikael Klingeborn
- Department of Ophthalmology, Duke Eye Center, Duke University, Durham, NC 27710, USA
| | - W Michael Dismuke
- Department of Ophthalmology, Duke Eye Center, Duke University, Durham, NC 27710, USA
| | - Catherine Bowes Rickman
- Department of Ophthalmology, Duke Eye Center, Duke University, Durham, NC 27710, USA; Department of Cell Biology, Duke University, Durham, NC 27710, USA
| | - W Daniel Stamer
- Department of Ophthalmology, Duke Eye Center, Duke University, Durham, NC 27710, USA; Department of Biomedical Engineering, Duke University, Durham, NC 27710, USA.
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407
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Extracellular vesicles: their role in cancer biology and epithelial-mesenchymal transition. Biochem J 2017; 474:21-45. [PMID: 28008089 DOI: 10.1042/bcj20160006] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2016] [Revised: 10/04/2016] [Accepted: 10/10/2016] [Indexed: 12/31/2022]
Abstract
Cell-cell communication is critical across an assortment of physiological and pathological processes. Extracellular vesicles (EVs) represent an integral facet of intercellular communication largely through the transfer of functional cargo such as proteins, messenger RNAs (mRNAs), microRNA (miRNAs), DNAs and lipids. EVs, especially exosomes and shed microvesicles, represent an important delivery medium in the tumour micro-environment through the reciprocal dissemination of signals between cancer and resident stromal cells to facilitate tumorigenesis and metastasis. An important step of the metastatic cascade is the reprogramming of cancer cells from an epithelial to mesenchymal phenotype (epithelial-mesenchymal transition, EMT), which is associated with increased aggressiveness, invasiveness and metastatic potential. There is now increasing evidence demonstrating that EVs released by cells undergoing EMT are reprogrammed (protein and RNA content) during this process. This review summarises current knowledge of EV-mediated functional transfer of proteins and RNA species (mRNA, miRNA, long non-coding RNA) between cells in cancer biology and the EMT process. An in-depth understanding of EVs associated with EMT, with emphasis on molecular composition (proteins and RNA species), will provide fundamental insights into cancer biology.
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408
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Abstract
Extracellular vesicles are a heterogeneous population of microparticles released by virtually all living cells which have been recently widely investigated in different biological fields. They are typically composed of two primary types (exosomes and microvesicles) and are recently commanding increasing attention as mediators of cellular signaling. Indeed, these vesicles can affect recipient cells by carrying and delivering complex cargos of biomolecules (including proteins, lipids and nucleic acids), protected from enzymatic degradation in the environment. Their importance has been demonstrated in the pathophysiology of several organs, in particular in kidney, where different cell types secrete extracellular vesicles that mediate their communication with downstream urinary tract cells. Over the past few years, evidence has been shown that vesicles participate in kidney development and normal physiology. Moreover, EVs are widely demonstrated to be implicated in cellular signaling during renal regenerative and pathological processes. Although many EV mechanisms are still poorly understood, in particular in kidney, the discovery of their role could help to shed light on renal biological processes which are so far elusive. Lastly, extracellular vesicles secreted by renal cells gather in urine, thus becoming a great resource for disease or recovery markers and a promising non-invasive diagnostic instrument for renal disease. In the present review, we discuss the most recent findings on the role of extracellular vesicles in renal physiopathology and their potential implication in diagnosis and therapy.
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Affiliation(s)
| | - Chiara Gai
- Stem Cell Laboratory, Department of Medical Sciences, University of TurinTurin, Italy
| | - Benedetta Bussolati
- Department of Molecular Biotechnology and Health Sciences, University of TurinTurin, Italy
| | - Giovanni Camussi
- Stem Cell Laboratory, Department of Medical Sciences, University of TurinTurin, Italy
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409
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Zhu X, Badawi M, Pomeroy S, Sutaria DS, Xie Z, Baek A, Jiang J, Elgamal OA, Mo X, Perle KL, Chalmers J, Schmittgen TD, Phelps MA. Comprehensive toxicity and immunogenicity studies reveal minimal effects in mice following sustained dosing of extracellular vesicles derived from HEK293T cells. J Extracell Vesicles 2017; 6:1324730. [PMID: 28717420 PMCID: PMC5505007 DOI: 10.1080/20013078.2017.1324730] [Citation(s) in RCA: 348] [Impact Index Per Article: 49.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Indexed: 02/07/2023] Open
Abstract
Extracellular vesicles (EVs) are under evaluation as therapeutics or as vehicles for drug delivery. Preclinical studies of EVs often use mice or other animal models to assess efficacy and disposition. However, as most EVs under evaluation are derived from human cells, they may elicit immune responses which may contribute to toxicities or enhanced EV clearance. Furthermore, EVs from different cell sources or EVs comprising various cargo may differ with respect to immunogenicity or toxicity. To assess EV-induced immune response and toxicity, we dosed C57BL/6 mice with EVs intravenously and intraperitoneally for 3 weeks. EVs were harvested from wild type or engineered HEK293T cells which were modified to produce EVs loaded with miR-199a-3p and chimeric proteins. Blood was collected to assess hematology, blood chemistry, and immune markers. Spleen cells were immunophenotyped, and tissues were harvested for gross necropsy and histopathological examination. No signs of toxicity were observed, and minimal evidence of changes in immune markers were noted in mice dosed with engineered, but not with wild type EVs. This study provides a framework for assessment of immunogenicity and toxicity that will be required as EVs from varying cell sources are tested within numerous animal models and eventually in humans.
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Affiliation(s)
- Xiaohua Zhu
- College of Pharmacy, The Ohio State University, Columbus, OH, USA
| | - Mohamed Badawi
- College of Pharmacy, The Ohio State University, Columbus, OH, USA
| | - Steven Pomeroy
- College of Pharmacy, University of Florida, Gainesville, FL, USA
| | | | - Zhiliang Xie
- College of Pharmacy, The Ohio State University, Columbus, OH, USA
| | - Alice Baek
- College of Pharmacy, The Ohio State University, Columbus, OH, USA
| | - Jinmai Jiang
- College of Pharmacy, University of Florida, Gainesville, FL, USA
| | - Ola A Elgamal
- College of Pharmacy, The Ohio State University, Columbus, OH, USA
| | - Xiaokui Mo
- Department of Biostatistics, The Ohio State University, Columbus, OH, USA
| | - Krista La Perle
- College of Veterinary Medicine, The Ohio State University, Columbus, OH, USA
| | - Jeffrey Chalmers
- College of Engineering, The Ohio State University, Columbus, OH, USA
| | | | - Mitch A Phelps
- College of Pharmacy, The Ohio State University, Columbus, OH, USA
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410
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Chapuy-Regaud S, Dubois M, Plisson-Chastang C, Bonnefois T, Lhomme S, Bertrand-Michel J, You B, Simoneau S, Gleizes PE, Flan B, Abravanel F, Izopet J. Characterization of the lipid envelope of exosome encapsulated HEV particles protected from the immune response. Biochimie 2017; 141:70-79. [PMID: 28483690 DOI: 10.1016/j.biochi.2017.05.003] [Citation(s) in RCA: 87] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2017] [Accepted: 05/03/2017] [Indexed: 02/08/2023]
Abstract
The hepatitis E virus (HEV) is the most common cause of acute hepatitis worldwide. Although HEV is a small, naked RNA virus, HEV particles become associated with lipids in the blood of infected patients and in the supernatant of culture systems. The egress of these particles from cells implies the exocytosis pathway but the question of the role of the resulting HEV RNA containing exosomes and the nature of the lipids they contain has not been fully addressed. We determined the lipid proportions of exosomes from uninfected and HEV-infected cells and their role in HEV spreading. We cultured a suitable HEV strain on HepG2/C3A cells and analyzed the population of exosomes containing HEV RNA using lipidomics methods and electron microscopy. We also quantified HEV infectivity using an infectivity endpoint method based on HEV RNA quantification to calculate the tissue culture infectious dose 50. Exosomes produced by HEV-infected HepG2/C3A cells contained encapsidated HEV RNA. These HEV RNA-containing exosomes were infectious but ten times less than stools. HEV from stools, but not exosome-associated HEV from culture supernatant, was neutralized by anti-HEV antibodies in a dose-dependent manner. HEV infection did not influence the morphology or lipid proportions of the bulk of exosomes. These exosomes contained significantly more cholesterol, phosphatidylserine, sphingomyelin and ceramides than the parent cells, but less phosphoinositides and polyunsaturated fatty acids. Exosomes play a major role in HEV egress but HEV infection does not modify the characteristics of the bulk of exosomes produced by infected cells. PS and cholesterol enriched in these vesicles could then be critical for HEV entry. HEV particles in exosomes are protected from the immune response which could lead to the wide circulation of HEV in its host.
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Affiliation(s)
- Sabine Chapuy-Regaud
- INSERM, UMR1043, Toulouse, France; Department of Virology, CHU Purpan, Toulouse, France; Toulouse University, Toulouse, France.
| | - Martine Dubois
- INSERM, UMR1043, Toulouse, France; Department of Virology, CHU Purpan, Toulouse, France
| | | | - Tiffany Bonnefois
- INSERM, UMR1043, Toulouse, France; Department of Virology, CHU Purpan, Toulouse, France
| | - Sébastien Lhomme
- INSERM, UMR1043, Toulouse, France; Department of Virology, CHU Purpan, Toulouse, France; Toulouse University, Toulouse, France
| | - Justine Bertrand-Michel
- Toulouse University, Toulouse, France; MetaToul-Lipidomic Core Facility, INSERM, UMR1048, Toulouse, France
| | - Bruno You
- LFB, Laboratoire Français du Fractionnement et des Biotechnologies, Courtaboeuf, France
| | - Steve Simoneau
- LFB, Laboratoire Français du Fractionnement et des Biotechnologies, Courtaboeuf, France
| | | | - Benoît Flan
- LFB, Laboratoire Français du Fractionnement et des Biotechnologies, Courtaboeuf, France
| | - Florence Abravanel
- INSERM, UMR1043, Toulouse, France; Department of Virology, CHU Purpan, Toulouse, France; Toulouse University, Toulouse, France
| | - Jacques Izopet
- INSERM, UMR1043, Toulouse, France; Department of Virology, CHU Purpan, Toulouse, France; Toulouse University, Toulouse, France
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411
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Environmental neurotoxicant manganese regulates exosome-mediated extracellular miRNAs in cell culture model of Parkinson's disease: Relevance to α-synuclein misfolding in metal neurotoxicity. Neurotoxicology 2017; 64:267-277. [PMID: 28450057 DOI: 10.1016/j.neuro.2017.04.007] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Revised: 04/05/2017] [Accepted: 04/18/2017] [Indexed: 12/20/2022]
Abstract
Many chronic neurodegenerative disorders share a common pathogenic mechanism involving the aggregation and deposition of misfolded proteins. Recently, it was shown that these aggregated proteins could be transferred from one cell to another via extracellular nanovesicles called exosomes. Initially thought to be a means of cellular waste removal, exosomes have since been discovered to actively participate in cell-to-cell communication. Importantly, various inflammatory and signaling molecules, as well as small RNAs are selectively packaged in these vesicles. Considering the important role of environmental manganese (Mn) in Parkinson's disease (PD)-like neurological disorders, we characterized the effect of Mn on exosome content and release using an MN9D dopaminergic cell model of PD, which was generated to stably express wild-type human α-synuclein (αSyn). Mn exposure (300μM MnCl2) for 24h induced the release of exosomes into the extracellular media prior to cytotoxicity, as determined by NanoSight particle analysis and electron microscopy. Strikingly, Western blot analysis revealed that Mn treatment in αSyn-expressing cells increases the protein Rab27a, which regulates the release of exosomes from cells. Moreover, next-generation sequencing showed more small RNAs in exosomes isolated from Mn-exposed cells than from control exosomes. Our miRNA profiling analysis led to the discovery of increased expression of certain miRNAs previously shown to regulate key biological pathways, including protein aggregation, autophagy, inflammation and hypoxia. Collectively, our results provide a glimpse of Mn's role in modulating extracellular miRNA content through exosomal release from dopaminergic neuronal cells and thus potentially contributing to progressive neurodegeneration. Further characterization of extracellular miRNAs and their targets will have major impacts on biomarker discovery and translational strategies for environmentally linked neurodegenerative diseases including PD.
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412
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Overmiller AM, Pierluissi JA, Wermuth PJ, Sauma S, Martinez-Outschoorn U, Tuluc M, Luginbuhl A, Curry J, Harshyne LA, Wahl JK, South AP, Mahoney MG. Desmoglein 2 modulates extracellular vesicle release from squamous cell carcinoma keratinocytes. FASEB J 2017; 31:3412-3424. [PMID: 28438789 DOI: 10.1096/fj.201601138rr] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Accepted: 04/11/2017] [Indexed: 12/21/2022]
Abstract
Extracellular vesicles (EVs) are nanoscale membrane-derived vesicles that serve as intercellular messengers carrying lipids, proteins, and genetic material. Substantial evidence has shown that cancer-derived EVs, secreted by tumor cells into the blood and other bodily fluids, play a critical role in modulating the tumor microenvironment and affecting the pathogenesis of cancer. Here we demonstrate for the first time that squamous cell carcinoma (SCC) EVs were enriched with the C-terminal fragment of desmoglein 2 (Dsg2), a desmosomal cadherin often overexpressed in malignancies. Overexpression of Dsg2 increased EV release and mitogenic content including epidermal growth factor receptor and c-Src. Inhibiting ectodomain shedding of Dsg2 with the matrix metalloproteinase inhibitor GM6001 resulted in accumulation of full-length Dsg2 in EVs and reduced EV release. When cocultured with Dsg2/green fluorescence protein-expressing SCC cells, green fluorescence protein signal was detected by fluorescence-activated cell sorting analysis in the CD90+ fibroblasts. Furthermore, SCC EVs activated Erk1/2 and Akt signaling and enhanced fibroblast cell proliferation. In vivo, Dsg2 was highly up-regulated in the head and neck SCCs, and EVs isolated from sera of patients with SCC were enriched in Dsg2 C-terminal fragment and epidermal growth factor receptor. This study defines a mechanism by which Dsg2 expression in cancer cells can modulate the tumor microenvironment, a step critical for tumor progression.-Overmiller, A. M., Pierluissi, J. A., Wermuth, P. J., Sauma, S., Martinez-Outschoorn, U., Tuluc, M., Luginbuhl, A., Curry, J., Harshyne, L. A., Wahl, J. K. III, South, A. P., Mahoney, M. G. Desmoglein 2 modulates extracellular vesicle release from squamous cell carcinoma keratinocytes.
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Affiliation(s)
- Andrew M Overmiller
- Department of Dermatology and Cutaneous Biology, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Jennifer A Pierluissi
- Department of Dermatology and Cutaneous Biology, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Peter J Wermuth
- Department of Dermatology and Cutaneous Biology, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Sami Sauma
- Department of Neurological Surgery, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | | | - Madalina Tuluc
- Department of Otolaryngology-Head and Neck Surgery, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Adam Luginbuhl
- Department of Otolaryngology-Head and Neck Surgery, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Joseph Curry
- Department of Otolaryngology-Head and Neck Surgery, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Larry A Harshyne
- Department of Neurological Surgery, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - James K Wahl
- Department of Oral Biology, University of Nebraska, Lincoln, Nebraska, USA
| | - Andrew P South
- Department of Dermatology and Cutaneous Biology, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Mỹ G Mahoney
- Department of Dermatology and Cutaneous Biology, Thomas Jefferson University, Philadelphia, Pennsylvania, USA;
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413
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Collino F, Pomatto M, Bruno S, Lindoso RS, Tapparo M, Sicheng W, Quesenberry P, Camussi G. Exosome and Microvesicle-Enriched Fractions Isolated from Mesenchymal Stem Cells by Gradient Separation Showed Different Molecular Signatures and Functions on Renal Tubular Epithelial Cells. Stem Cell Rev Rep 2017; 13:226-243. [PMID: 28070858 PMCID: PMC5380712 DOI: 10.1007/s12015-016-9713-1] [Citation(s) in RCA: 122] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Several studies have suggested that extracellular vesicles (EVs) released from mesenchymal stem cells (MSCs) may mediate MSC paracrine action on kidney regeneration. This activity has been, at least in part, ascribed to the transfer of proteins/transcription factors and different RNA species. Information on the RNA/protein content of different MSC EV subpopulations and the correlation with their biological activity is currently incomplete. The aim of this study was to evaluate the molecular composition and the functional properties on renal target cells of MSC EV sub-populations separated by gradient floatation. The results demonstrated heterogeneity in quantity and composition of MSC EVs. Two peaks of diameter were observed (90-110 and 170-190 nm). The distribution of exosomal markers and miRNAs evaluated in the twelve gradient fractions showed an enrichment in fractions with a flotation density of 1.08-1.14 g/mL. Based on this observation, we evaluated the biological activity on renal cell proliferation and apoptosis resistance of low (CF1), medium (CF2) and high (CF3) floatation density fractions. EVs derived from all fractions, were internalized by renal cells, CF1 and CF2 but not CF3 fraction stimulated significant cell proliferation. CF2 also inhibited apoptosis on renal tubular cells submitted to ischemia-reperfusion injury. Comparative miRNomic and proteomic profiles reveal a cluster of miRNAs and proteins common to all three fractions and an enrichment of selected molecules related to renal regeneration in CF2 fraction. In conclusion, the CF2 fraction enriched in exosomal markers was the most active on renal tubular cell proliferation and protection from apoptosis.
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Affiliation(s)
- Federica Collino
- Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
- Department of Medical Sciences and 2i3T, University of Torino, Torino, Italy
| | - Margherita Pomatto
- Department of Medical Sciences and 2i3T, University of Torino, Torino, Italy
| | - Stefania Bruno
- Department of Molecular Biotechnology and Healthy Science, Molecular Biotechnology Center, University of Torino, Torino, Italy
| | - Rafael Soares Lindoso
- Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Marta Tapparo
- Department of Medical Sciences and 2i3T, University of Torino, Torino, Italy
| | - Wen Sicheng
- Division of Hematology/Oncology, Rhode Island Hospital, Brown University, Providence, RI, USA
| | - Peter Quesenberry
- Division of Hematology/Oncology, Rhode Island Hospital, Brown University, Providence, RI, USA
| | - Giovanni Camussi
- Department of Medical Sciences and 2i3T, University of Torino, Torino, Italy.
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414
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Siles-Lucas M, Sánchez-Ovejero C, González-Sánchez M, González E, Falcón-Pérez JM, Boufana B, Fratini F, Casulli A, Manzano-Román R. Isolation and characterization of exosomes derived from fertile sheep hydatid cysts. Vet Parasitol 2017; 236:22-33. [DOI: 10.1016/j.vetpar.2017.01.022] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Revised: 01/16/2017] [Accepted: 01/21/2017] [Indexed: 11/26/2022]
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415
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Inamdar S, Nitiyanandan R, Rege K. Emerging applications of exosomes in cancer therapeutics and diagnostics. Bioeng Transl Med 2017; 2:70-80. [PMID: 28529978 PMCID: PMC5413841 DOI: 10.1002/btm2.10059] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Revised: 02/26/2017] [Accepted: 03/06/2017] [Indexed: 12/21/2022] Open
Abstract
Exosomes are nanoscale extracellular vesicles that are shed from different cells in the body. Exosomes encapsulate several biomolecules including lipids, proteins, and nucleic acids, and can therefore play a key role in cellular communication. These vesicles can be isolated from different body fluids and their small sizes make them attractive in various biomedical applications. Here, we review state-of-the art approaches in exosome isolation and purification, and describe their potential use in cancer vaccines, drug delivery, and diagnostics.
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Affiliation(s)
- Sahil Inamdar
- Chemical EngineeringArizona State UniversityTempeAZ 85287
| | | | - Kaushal Rege
- Chemical EngineeringArizona State UniversityTempeAZ 85287
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416
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Jong AY, Wu CH, Li J, Sun J, Fabbri M, Wayne AS, Seeger RC. Large-scale isolation and cytotoxicity of extracellular vesicles derived from activated human natural killer cells. J Extracell Vesicles 2017; 6:1294368. [PMID: 28326171 PMCID: PMC5345580 DOI: 10.1080/20013078.2017.1294368] [Citation(s) in RCA: 154] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Revised: 11/29/2016] [Accepted: 12/06/2016] [Indexed: 01/06/2023] Open
Abstract
Extracellular vesicles (EVs) have been the focus of great interest, as they appear to be involved in numerous important cellular processes. They deliver bioactive macromolecules such as proteins, lipids, and nucleic acids, allowing intercellular communication in multicellular organisms. EVs are secreted by all cell types, including immune cells such as natural killer cells (NK), and they may play important roles in the immune system. Currently, a large-scale procedure to obtain functional NK EVs is lacking, limiting their use clinically. In this report, we present a simple, robust, and cost-effective method to isolate a large quantity of NK EVs. After propagating and activating NK cells ex vivo and then incubating them in exosome-free medium for 48 h, EVs were isolated using a polymer precipitation method. The isolated vesicles contain the tetraspanin CD63, an EV marker, and associated proteins (fibronectin), but are devoid of cytochrome C, a cytoplasmic marker. Nanoparticle tracking analysis showed a size distribution between 100 and 200 nm while transmission electron microscopy imaging displayed vesicles with an oval shape and comparable sizes, fulfilling the definition of EV. Importantly, isolated EV fractions were cytotoxic against cancer cells. Furthermore, our results demonstrate for the first time that isolated activated NK (aNK) cell EVs contain the cytotoxic proteins perforin, granulysin, and granzymes A and B, incorporated from the aNK cells. Activation of caspase -3, -7 and -9 was detected in cancer cells incubated with aNK EVs, and caspase inhibitors blocked aNK EV-induced cytotoxicity, suggesting that aNK EVs activate caspase pathways in target cells. The ability to isolate functional aNK EVs on a large scale may lead to new clinical applications. Abbreviations: NK: natural killer cells; activated NK (aNK) cells; EVs: extracellular vesicles; ALL: acute lymphoblastic leukaemia; aAPC: artificial antigen-presenting cell; TEM: transmission electron microscope; PBMC: peripheral blood mononuclear cells; FBS: foetal bovine serum.
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Affiliation(s)
- Ambrose Y Jong
- Children's Center for Cancer and Blood Diseases and Division of Hematology, Oncology and Blood & Marrow Transplantation, Department of Pediatrics, The Saban Research Institute, Children's Hospital Los Angeles, USC-Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California , Los Angeles , CA , USA
| | - Chun-Hua Wu
- Children's Center for Cancer and Blood Diseases and Division of Hematology, Oncology and Blood & Marrow Transplantation, Department of Pediatrics, The Saban Research Institute, Children's Hospital Los Angeles, USC-Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California , Los Angeles , CA , USA
| | - Jingbo Li
- Children's Center for Cancer and Blood Diseases and Division of Hematology, Oncology and Blood & Marrow Transplantation, Department of Pediatrics, The Saban Research Institute, Children's Hospital Los Angeles, USC-Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California , Los Angeles , CA , USA
| | - Jianping Sun
- Children's Center for Cancer and Blood Diseases and Division of Hematology, Oncology and Blood & Marrow Transplantation, Department of Pediatrics, The Saban Research Institute, Children's Hospital Los Angeles, USC-Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California , Los Angeles , CA , USA
| | - Muller Fabbri
- Children's Center for Cancer and Blood Diseases and Division of Hematology, Oncology and Blood & Marrow Transplantation, Department of Pediatrics, The Saban Research Institute, Children's Hospital Los Angeles, USC-Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California , Los Angeles , CA , USA
| | - Alan S Wayne
- Children's Center for Cancer and Blood Diseases and Division of Hematology, Oncology and Blood & Marrow Transplantation, Department of Pediatrics, The Saban Research Institute, Children's Hospital Los Angeles, USC-Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California , Los Angeles , CA , USA
| | - Robert C Seeger
- Children's Center for Cancer and Blood Diseases and Division of Hematology, Oncology and Blood & Marrow Transplantation, Department of Pediatrics, The Saban Research Institute, Children's Hospital Los Angeles, USC-Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California , Los Angeles , CA , USA
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417
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Yao K, Ricardo SD. Mesenchymal stem cells as novel micro-ribonucleic acid delivery vehicles in kidney disease. Nephrology (Carlton) 2017; 21:363-71. [PMID: 26437381 DOI: 10.1111/nep.12643] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2015] [Revised: 08/19/2015] [Accepted: 09/30/2015] [Indexed: 12/11/2022]
Abstract
MicroRNAs (miRNAs) are short single strands of RNA responsible for post-transcriptional regulation of gene expression and have been implicated in the pathogenesis of chronic kidney disease (CKD). Emerging evidence reports that miRNAs can reduce kidney fibrosis through regulation of targets associated with collagen and extracellular matrix accumulation. However, the development of miRNA therapies has been hampered by the lack of targeted and sustainable methods of systemic miRNA delivery. Mesenchymal stem cells (MSCs) provide a promising miRNA delivery platform to overcome toxicity, the potential for insertional mutations and the low efficiency of previous methods. MSCs are endogenously immunoprivileged and home to sites of inflammation. They also release trophic growth factors to modulate the immune system, alter the polarization of macrophages and provide renal protection and repair. The potential to engineer MSCs to express or overexpress miRNAs, released by exosomes, may enhance their natural functions. Clinical studies are already being conducted individually for the use of miRNAs in cancer and MSCs in diseases associated with CKD. Hence, the combination of miRNAs and MSCs may provide an unparalleled cell-based therapy for treating CKD.
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Affiliation(s)
- Kevin Yao
- Department of Anatomy and Developmental Biology, Monash University, Melbourne, Victoria, Australia
| | - Sharon D Ricardo
- Department of Anatomy and Developmental Biology, Monash University, Melbourne, Victoria, Australia
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418
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Soung YH, Ford S, Zhang V, Chung J. Exosomes in Cancer Diagnostics. Cancers (Basel) 2017; 9:cancers9010008. [PMID: 28085080 PMCID: PMC5295779 DOI: 10.3390/cancers9010008] [Citation(s) in RCA: 222] [Impact Index Per Article: 31.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Revised: 01/06/2017] [Accepted: 01/09/2017] [Indexed: 12/21/2022] Open
Abstract
Exosomes are endosome derived extracellular vesicles of 30–120 nm size ranges. Exosomes have been identified as mediators of cell-to-cell communication by transferring bioactive molecules such as nucleic acids, proteins and lipids into recipient cells. While exosomes are secreted by multiple cell types, cancer derived exosomes not only influence the invasive potentials of proximally located cells, but also affect distantly located tissues. Based on their ability to alter tumor microenvironment by regulating immunity, angiogenesis and metastasis, there has been growing interest in defining the clinical relevance of exosomes in cancers. In particular, exosomes are valuable sources for biomarkers due to selective cargo loading and resemblance to their parental cells. In this review, we summarize the recent findings to utilize exosomes as cancer biomarkers for early detection, diagnosis and therapy selection.
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Affiliation(s)
- Young Hwa Soung
- Department of Pathology, Stony Brook Medicine, 101 Nicolls Road, Stony Brook, NY 11794, USA.
| | - Shane Ford
- Department of Pathology, Stony Brook Medicine, 101 Nicolls Road, Stony Brook, NY 11794, USA.
| | - Vincent Zhang
- Department of Pathology, Stony Brook Medicine, 101 Nicolls Road, Stony Brook, NY 11794, USA.
| | - Jun Chung
- Department of Pathology, Stony Brook Medicine, 101 Nicolls Road, Stony Brook, NY 11794, USA.
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419
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Exosomal microRNAs in liquid biopsies: future biomarkers for prostate cancer. Clin Transl Oncol 2017; 19:651-657. [PMID: 28054319 DOI: 10.1007/s12094-016-1599-5] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2016] [Accepted: 12/12/2016] [Indexed: 12/19/2022]
Abstract
Prostate cancer is the second most diagnosed cancer in males in the world. Plasma quantification of prostate-specific antigen substantially improved the early detection of prostate cancer, but still lacks the required specificity. Clinical management of prostate cancer needs advances in the development of new non-invasive biomarkers, ameliorating current diagnosis and prognosis and guiding therapeutic decisions. microRNAs (miRNAs) are a class of small non-coding RNAs that regulate gene expression at the post-transcriptional level. These miRNAs are expressed in the cells and are also present in cell-derived extracellular vesicles such as exosomes. Exosomes have been shown to act as mediators for cell to cell communication because of the regulatory functions of their content. High levels of exosomes are found in several body fluids from cancer patients and could be a potential source of non-invasive biomarkers. In this review, we summarize the diagnostic and prognostic utility of exosomal miRNAs in prostate cancer.
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420
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Jayabalan N, Nair S, Nuzhat Z, Rice GE, Zuñiga FA, Sobrevia L, Leiva A, Sanhueza C, Gutiérrez JA, Lappas M, Freeman DJ, Salomon C. Cross Talk between Adipose Tissue and Placenta in Obese and Gestational Diabetes Mellitus Pregnancies via Exosomes. Front Endocrinol (Lausanne) 2017; 8:239. [PMID: 29021781 PMCID: PMC5623931 DOI: 10.3389/fendo.2017.00239] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Accepted: 08/30/2017] [Indexed: 12/16/2022] Open
Abstract
Obesity is an important public health issue worldwide, where it is commonly associated with the development of metabolic disorders, especially insulin resistance (IR). Maternal obesity is associated with an increased risk of pregnancy complications, especially gestational diabetes mellitus (GDM). Metabolism is a vital process for energy production and the maintenance of essential cellular functions. Excess energy storage is predominantly regulated by the adipose tissue. Primarily made up of adipocytes, adipose tissue acts as the body's major energy reservoir. The role of adipose tissue, however, is not restricted to a "bag of fat." The adipose tissue is an endocrine organ, secreting various adipokines, enzymes, growth factors, and hormones that take part in glucose and lipid metabolism. In obesity, the greater portion of the adipose tissue comprises fat, and there is increased pro-inflammatory cytokine secretion, macrophage infiltration, and reduced insulin sensitivity. Obesity contributes to systemic IR and its associated metabolic complications. Similar to adipose tissue, the placenta is also an endocrine organ. During pregnancy, the placenta secretes various molecules to maintain pregnancy physiology. In addition, the placenta plays an important role in metabolism and exchange of nutrients between mother and fetus. Inflammation at the placenta may contribute to the severity of maternal IR and her likelihood of developing GDM and may also mediate the adverse consequences of obesity and GDM on the fetus. Interestingly, studies on maternal insulin sensitivity and secretion of placental hormones have not shown a positive correlation between these phenomena. Recently, a great interest in the field of extracellular vesicles (EVs) has been observed in the literature. EVs are produced by a wide range of cells and are present in all biological fluids. EVs are involved in cell-to-cell communication. Recent evidence points to an association between adipose tissue-derived EVs and metabolic syndrome in obesity. In this review, we will discuss the changes in human placenta and adipose tissue in GDM and obesity and summarize the findings regarding the role of adipose tissue and placenta-derived EVs, with an emphasis on exosomes in obesity, and the contribution of obesity to the development of GDM.
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Affiliation(s)
- Nanthini Jayabalan
- Exosome Biology Laboratory, Centre for Clinical Diagnostics, University of Queensland Centre for Clinical Research, Royal Brisbane and Women’s Hospital, The University of Queensland, Brisbane, QLD, Australia
| | - Soumyalekshmi Nair
- Exosome Biology Laboratory, Centre for Clinical Diagnostics, University of Queensland Centre for Clinical Research, Royal Brisbane and Women’s Hospital, The University of Queensland, Brisbane, QLD, Australia
| | - Zarin Nuzhat
- Exosome Biology Laboratory, Centre for Clinical Diagnostics, University of Queensland Centre for Clinical Research, Royal Brisbane and Women’s Hospital, The University of Queensland, Brisbane, QLD, Australia
| | - Gregory E. Rice
- Exosome Biology Laboratory, Centre for Clinical Diagnostics, University of Queensland Centre for Clinical Research, Royal Brisbane and Women’s Hospital, The University of Queensland, Brisbane, QLD, Australia
- Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Ochsner Clinic Foundation, New Orleans, LA, United States
| | - Felipe A. Zuñiga
- Faculty of Pharmacy, Department of Clinical Biochemistry and Immunology, University of Concepción, Concepción, Chile
| | - Luis Sobrevia
- Cellular and Molecular Physiology Laboratory (CMPL), Division of Obstetrics and Gynaecology, Faculty of Medicine, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
- University of Queensland Centre for Clinical Research, Royal Brisbane and Women’s Hospital, The University of Queensland, Brisbane, QLD, Australia
- Faculty of Pharmacy, Department of Physiology, Universidad de Sevilla, Seville, Spain
| | - Andrea Leiva
- Cellular and Molecular Physiology Laboratory (CMPL), Division of Obstetrics and Gynaecology, Faculty of Medicine, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Carlos Sanhueza
- Cellular and Molecular Physiology Laboratory (CMPL), Division of Obstetrics and Gynaecology, Faculty of Medicine, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Jaime Agustín Gutiérrez
- Cellular Signaling and Differentiation Laboratory (CSDL), Medical Technology School, Health Sciences Faculty, Universidad San Sebastian, Santiago, Chile
- Cellular and Molecular Physiology Laboratory (CMPL), Division of Obstetrics and Gynaecology, Faculty of Medicine, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Martha Lappas
- Obstetrics, Nutrition and Endocrinology Group, Department of Obstetrics and Gynaecology, University of Melbourne, Melbourne, VIC, Australia
- Mercy Perinatal Research Centre, Mercy Hospital for Women, Heidelberg, VIC, Australia
| | - Dilys Jane Freeman
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom
| | - Carlos Salomon
- Exosome Biology Laboratory, Centre for Clinical Diagnostics, University of Queensland Centre for Clinical Research, Royal Brisbane and Women’s Hospital, The University of Queensland, Brisbane, QLD, Australia
- Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Ochsner Clinic Foundation, New Orleans, LA, United States
- Faculty of Pharmacy, Department of Clinical Biochemistry and Immunology, University of Concepción, Concepción, Chile
- Mater Research Institute-University of Queensland, Translational Research Institute, Woolloongabba, QLD, Australia
- *Correspondence: Carlos Salomon,
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421
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Exosomes Mediate the Beneficial Effects of Exercise. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2017; 1000:333-353. [PMID: 29098629 DOI: 10.1007/978-981-10-4304-8_18] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
It is known that moderate exercise can prevent the development of cardiovascular diseases, but the exact molecular mechanisms mediating cardioprotective effect of exercise remain unknown. Emerging evidence suggests that exercise has great impact on the biogenesis of exosomes, which have been found in both interstitial fluid and circulation, and play important roles in cellular communication. Exosomes carry functional molecules such as mRNAs, microRNA, and specific proteins, which can be used in the early diagnosis and targeted therapy of a variety of diseases. Our review focus on the current knowledge on exosome production, secretion, uptake and how exercise influence exosome content. We also highlight recent research development in exosome based approach for cardiac repair.
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422
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A Protocol for Isolation and Proteomic Characterization of Distinct Extracellular Vesicle Subtypes by Sequential Centrifugal Ultrafiltration. Methods Mol Biol 2017; 1545:91-116. [PMID: 27943209 DOI: 10.1007/978-1-4939-6728-5_7] [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] [Indexed: 01/01/2023]
Abstract
Scientific and clinical interest in extracellular vesicles (EVs) has increased rapidly as evidence mounts that they may constitute a new signaling paradigm. Recent studies have highlighted EVs carry preassembled complex biological information that elicit pleiotropic responses in target cells. It is well recognized that cells secrete essentially two EV subtypes that can be partially separated by differential centrifugation (DC): the larger size class (referred to as "microvesicles" or "shed microvesicles," sMVs) is heterogeneous (100-1500 nm), while the smaller size class (referred to as "exosomes") is relatively homogeneous in size (50-150 nm). A key issue hindering progress in understanding underlying mechanisms of EV subtype biogenesis and cargo selectivity has been the technical challenge of isolating homogeneous EV subpopulations suitable for molecular analysis. In this protocol we reveal a novel method for the isolation, purification, and characterization of distinct EV subtypes: exosomes and sMVs. This method, based on sequential centrifugal ultrafiltration (SCUF), affords unbiased isolation of EVs from conditioned medium from a human colon cancer cell model. For both EV subtypes, this protocol details extensive purification and characterization based on dynamic light scattering, cryoelectron microscopy, quantitation, immunoblotting, and comparative label-free proteome profiling. This analytical SCUF method developed is potentially scalable using tangential flow filtration and provides a solid foundation for future in-depth functional studies of EV subtypes from diverse cell types.
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423
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Chen M, Xu R, Ji H, Greening DW, Rai A, Izumikawa K, Ishikawa H, Takahashi N, Simpson RJ. Transcriptome and long noncoding RNA sequencing of three extracellular vesicle subtypes released from the human colon cancer LIM1863 cell line. Sci Rep 2016; 6:38397. [PMID: 27917920 PMCID: PMC5137021 DOI: 10.1038/srep38397] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Accepted: 11/08/2016] [Indexed: 12/24/2022] Open
Abstract
Previously we reported that LIM1863 colorectal cancer (CRC) cells secrete three distinct extracellular vesicle subtypes – two subpopulations of exosomes (apical EpCAM-Exos and basolateral A33-Exos) and shed microvesicles (sMVs) – with distinct protein and miRNA signatures. Here, we extend our omics approach to understand the fundamental role of LIM1863-derived EVs by performing a comprehensive analysis of their mRNAs and long non-coding RNAs (lncRNAs) using RNA-Seq. We show that 2,389 mRNAs, 317 pseudogene transcripts, 1,028 lncRNAs and 206 short non-coding RNAs selectively distributed to (i.e., are enriched in) LIM1863 EVs, relative to the parent cell. An Ensembl/UniProtKB analysis revealed 1,937 mRNAs encode canonical proteins, 348 isoforms (including splice-variant proteins), and 119 ‘missing proteins’ (i.e., annotated in Ensembl but not UniProtKB). Further dissection of our protein/RNA data revealed that 6/151 observed RNA binding proteins have the potential to interact with ~75% of EV-enriched RNAs. Intriguingly, the co-existence of U1 and U2 ribonucleoproteins and their cognate snRNAs in LIM1863 EVs suggests a possible association of CRC EVs with recipient cell splicing events. Our data reveal several potential lncRNA CRC biomarkers and novel splicing/fusion genes that, collectively, will advance our understanding of EV biology in CRC and accelerate the development of EV-based diagnostics and therapeutics.
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Affiliation(s)
- Maoshan Chen
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science (LIMS), La Trobe University, Melbourne, Victoria, Australia
| | - Rong Xu
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science (LIMS), La Trobe University, Melbourne, Victoria, Australia
| | - Hong Ji
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science (LIMS), La Trobe University, Melbourne, Victoria, Australia
| | - David W Greening
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science (LIMS), La Trobe University, Melbourne, Victoria, Australia
| | - Alin Rai
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science (LIMS), La Trobe University, Melbourne, Victoria, Australia
| | - Keiichi Izumikawa
- Department of Applied Biological Science, Graduate School of Agriculture, Tokyo University of Agriculture and Technology, Tokyo, Japan.,Global Innovation Research Organisation, Tokyo University of Agriculture and Technology, Tokyo, Japan
| | - Hideaki Ishikawa
- Department of Applied Biological Science, Graduate School of Agriculture, Tokyo University of Agriculture and Technology, Tokyo, Japan.,Global Innovation Research Organisation, Tokyo University of Agriculture and Technology, Tokyo, Japan
| | - Nobuhiro Takahashi
- Department of Applied Biological Science, Graduate School of Agriculture, Tokyo University of Agriculture and Technology, Tokyo, Japan.,Global Innovation Research Organisation, Tokyo University of Agriculture and Technology, Tokyo, Japan
| | - Richard J Simpson
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science (LIMS), La Trobe University, Melbourne, Victoria, Australia.,Global Innovation Research Organisation, Tokyo University of Agriculture and Technology, Tokyo, Japan
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424
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Greening DW, Xu R, Gopal SK, Rai A, Simpson RJ. Proteomic insights into extracellular vesicle biology - defining exosomes and shed microvesicles. Expert Rev Proteomics 2016; 14:69-95. [PMID: 27838931 DOI: 10.1080/14789450.2017.1260450] [Citation(s) in RCA: 107] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
INTRODUCTION Extracellular vesicles (EVs) are critical mediators of intercellular communication, capable of regulating the transcriptional landscape of target cells through horizontal transmission of biological information, such as proteins, lipids, and RNA species. This capability highlights their potential as novel targets for disease intervention. Areas covered: This review focuses on the emerging importance of discovery proteomics (high-throughput, unbiased quantitative protein identification) and targeted proteomics (hypothesis-driven quantitative protein subset analysis) mass spectrometry (MS)-based strategies in EV biology, especially exosomes and shed microvesicles. Expert commentary: Recent advances in MS hardware, workflows, and informatics provide comprehensive, quantitative protein profiling of EVs and EV-treated target cells. This information is seminal to understanding the role of EV subtypes in cellular crosstalk, especially when integrated with other 'omics disciplines, such as RNA analysis (e.g., mRNA, ncRNA). Moreover, high-throughput MS-based proteomics promises to provide new avenues in identifying novel markers for detection, monitoring, and therapeutic intervention of disease.
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Affiliation(s)
- David W Greening
- a Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science , La Trobe University , Melbourne , Australia
| | - Rong Xu
- a Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science , La Trobe University , Melbourne , Australia
| | - Shashi K Gopal
- a Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science , La Trobe University , Melbourne , Australia
| | - Alin Rai
- a Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science , La Trobe University , Melbourne , Australia
| | - Richard J Simpson
- a Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science , La Trobe University , Melbourne , Australia
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425
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Michell DL, Allen RM, Landstreet SR, Zhao S, Toth CL, Sheng Q, Vickers KC. Isolation of High-density Lipoproteins for Non-coding Small RNA Quantification. J Vis Exp 2016. [PMID: 27929461 DOI: 10.3791/54488] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
The diversity of small non-coding RNAs (sRNA) is rapidly expanding and their roles in biological processes, including gene regulation, are emerging. Most interestingly, sRNAs are also found outside of cells and are stably present in all biological fluids. As such, extracellular sRNAs represent a novel class of disease biomarkers and are likely involved in cell signaling and intercellular communication networks. To assess their potential as biomarkers, sRNAs can be quantified in plasma, urine, and other fluids. Nevertheless, to fully understand the impact of extracellular sRNAs as endocrine signals, it is important to determine which carriers are transporting and protecting them in biological fluids (e.g., plasma), which cells and tissues contribute to extracellular sRNA pools, and cells and tissues capable of accepting and utilizing extracellular sRNA. To accomplish these goals, it is critical to isolate highly pure populations of extracellular carriers for sRNA profiling and quantification. We have previously demonstrated that lipoproteins, particularly high-density lipoproteins (HDL), transport functional microRNAs (miRNA) between cells and HDL-miRNAs are significantly altered in disease. Here, we detail a new protocol that utilizes tandem HDL isolation with density-gradient ultracentrifugation (DGUC) and fast-protein-liquid chromatography (FPLC) to obtain highly pure HDL for downstream profiling and quantification of all sRNAs, including miRNAs, using both high-throughput sequencing and real-time PCR approaches. This protocol will be a valuable resource for the investigation of sRNAs on HDL.
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Affiliation(s)
| | - Ryan M Allen
- Department of Medicine, Vanderbilt University School of Medicine
| | | | - Shilin Zhao
- Center for Quantitative Sciences, Vanderbilt University School of Medicine
| | - Cynthia L Toth
- Department of Medicine, Vanderbilt University School of Medicine
| | - Quanhu Sheng
- Department of Cancer Biology, Vanderbilt University School of Medicine
| | - Kasey C Vickers
- Department of Medicine, Vanderbilt University School of Medicine; Center for Quantitative Sciences, Vanderbilt University School of Medicine;
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426
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Haraszti RA, Didiot MC, Sapp E, Leszyk J, Shaffer SA, Rockwell HE, Gao F, Narain NR, DiFiglia M, Kiebish MA, Aronin N, Khvorova A. High-resolution proteomic and lipidomic analysis of exosomes and microvesicles from different cell sources. J Extracell Vesicles 2016; 5:32570. [PMID: 27863537 PMCID: PMC5116062 DOI: 10.3402/jev.v5.32570] [Citation(s) in RCA: 458] [Impact Index Per Article: 57.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Revised: 09/04/2016] [Accepted: 10/02/2016] [Indexed: 12/13/2022] Open
Abstract
Extracellular vesicles (EVs), including exosomes and microvesicles (MVs), are explored for use in diagnostics, therapeutics and drug delivery. However, little is known about the relationship of protein and lipid composition of EVs and their source cells. Here, we report high-resolution lipidomic and proteomic analyses of exosomes and MVs derived by differential ultracentrifugation from 3 different cell types: U87 glioblastoma cells, Huh7 hepatocellular carcinoma cells and human bone marrow-derived mesenchymal stem cells (MSCs). We identified 3,532 proteins and 1,961 lipid species in the screen. Exosomes differed from MVs in several different areas: (a) The protein patterns of exosomes were more likely different from their cells of origin than were the protein patterns of MVs; (b) The proteomes of U87 and Huh7 exosomes were similar to each other but different from the proteomes of MSC exosomes, whereas the lipidomes of Huh7 and MSC exosomes were similar to each other but different from the lipidomes of U87 exosomes; (c) exosomes exhibited proteins of extracellular matrix, heparin-binding, receptors, immune response and cell adhesion functions, whereas MVs were enriched in endoplasmic reticulum, proteasome and mitochondrial proteins. Exosomes and MVs also differed in their types of lipid contents. Enrichment in glycolipids and free fatty acids characterized exosomes, whereas enrichment in ceramides and sphingomyelins characterized MVs. Furthermore, Huh7 and MSC exosomes were specifically enriched in cardiolipins; U87 exosomes were enriched in sphingomyelins. This study comprehensively analyses the protein and lipid composition of exosomes, MVs and source cells in 3 different cell types.
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Affiliation(s)
- Reka A Haraszti
- RNA Therapeutics Institute, University of Massachusetts Medical School, Worcester, MA, USA.,Program in Molecular Medicine, University of Massachusetts Medical School, Worcester, MA, USA
| | - Marie-Cecile Didiot
- RNA Therapeutics Institute, University of Massachusetts Medical School, Worcester, MA, USA.,Program in Molecular Medicine, University of Massachusetts Medical School, Worcester, MA, USA
| | - Ellen Sapp
- MassGeneral Institute for Neurodegenerative Disease, Charlestown, MA, USA
| | - John Leszyk
- Proteomics and Mass Spectrometry Facility, University of Massachusetts Medical School, Worcester, MA, USA
| | - Scott A Shaffer
- Biochemistry and Molecular Pharmacology, University of Massachusetts Medical School, Worcester, MA, USA
| | | | - Fei Gao
- Berg LLC, Framingham, MA, USA
| | | | - Marian DiFiglia
- MassGeneral Institute for Neurodegenerative Disease, Charlestown, MA, USA
| | | | - Neil Aronin
- RNA Therapeutics Institute, University of Massachusetts Medical School, Worcester, MA, USA.,Department of Medicine, University of Massachusetts Medical School, Worcester, MA, USA;
| | - Anastasia Khvorova
- RNA Therapeutics Institute, University of Massachusetts Medical School, Worcester, MA, USA.,Program in Molecular Medicine, University of Massachusetts Medical School, Worcester, MA, USA;
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Benmoussa A, Lee CHC, Laffont B, Savard P, Laugier J, Boilard E, Gilbert C, Fliss I, Provost P. Commercial Dairy Cow Milk microRNAs Resist Digestion under Simulated Gastrointestinal Tract Conditions. J Nutr 2016; 146:2206-2215. [PMID: 27708120 DOI: 10.3945/jn.116.237651] [Citation(s) in RCA: 138] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2016] [Accepted: 09/02/2016] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND MicroRNAs are small, gene-regulatory noncoding RNA species present in large amounts in milk, where they seem to be protected against degradative conditions, presumably because of their association with exosomes. OBJECTIVE We monitored the relative stability of commercial dairy cow milk microRNAs during digestion and examined their associations with extracellular vesicles (EVs). METHODS We used a computer-controlled, in vitro, gastrointestinal model TNO intestinal model-1 (TIM-1) and analyzed, by quantitative polymerase chain reaction, the concentration of 2 microRNAs within gastrointestinal tract compartments at different points in time. EVs within TIM-1 digested and nondigested samples were studied by immunoblotting, dynamic light scattering, quantitative polymerase chain reaction, and density measurements. RESULTS A large quantity of dairy milk Bos taurus microRNA-223 (bta-miR-223) and bta-miR-125b (∼109-1010 copies/300 mL milk) withstood digestion under simulated gastrointestinal tract conditions, with the stomach causing the most important decrease in microRNA amounts. A large quantity of these 2 microRNAs (∼108-109 copies/300 mL milk) was detected in the upper small intestine compartments, which supports their potential bioaccessibility. A protocol optimized for the enrichment of dairy milk exosomes yielded a 100,000 × g pellet fraction that was positive for the exosomal markers tumor susceptibility gene-101 (TSG101), apoptosis-linked gene 2-interacting protein X (ALIX), and heat shock protein 70 (HSP70) and containing bta-miR-223 and bta-miR-125b. This approach, based on successive ultracentrifugation steps, also revealed the existence of ALIX-, HSP70-/low, and TSG101-/low EVs larger than exosomes and 2-6 times more enriched in bta-miR-223 and bta-miR-125b (P < 0.05). CONCLUSIONS Our findings indicate that commercial dairy cow milk contains numerous microRNAs that can resist digestion and are associated mostly with ALIX-, HSP70-/low, and TSG101-/low EVs. Our results support the existence of interspecies transfer of microRNAs mediated by milk consumption and challenge our current view of exosomes as the sole carriers of milk-derived microRNAs.
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Affiliation(s)
- Abderrahim Benmoussa
- University of Quebec Hospital Center Research Center/University of Laval Hospital Center, Department of Microbiology-Infectious Disease and Immunity and Faculty of Medicine, and
| | - Chan Ho C Lee
- University of Quebec Hospital Center Research Center/University of Laval Hospital Center, Department of Microbiology-Infectious Disease and Immunity and Faculty of Medicine, and
| | - Benoit Laffont
- University of Quebec Hospital Center Research Center/University of Laval Hospital Center, Department of Microbiology-Infectious Disease and Immunity and Faculty of Medicine, and
| | - Patricia Savard
- STELA Dairy Research Center, Institute of Nutrition and Functional Foods, Université Laval, Quebec, Canada
| | - Jonathan Laugier
- University of Quebec Hospital Center Research Center/University of Laval Hospital Center, Department of Microbiology-Infectious Disease and Immunity and Faculty of Medicine, and
| | - Eric Boilard
- University of Quebec Hospital Center Research Center/University of Laval Hospital Center, Department of Microbiology-Infectious Disease and Immunity and Faculty of Medicine, and
| | - Caroline Gilbert
- University of Quebec Hospital Center Research Center/University of Laval Hospital Center, Department of Microbiology-Infectious Disease and Immunity and Faculty of Medicine, and
| | - Ismail Fliss
- STELA Dairy Research Center, Institute of Nutrition and Functional Foods, Université Laval, Quebec, Canada
| | - Patrick Provost
- University of Quebec Hospital Center Research Center/University of Laval Hospital Center, Department of Microbiology-Infectious Disease and Immunity and Faculty of Medicine, and
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428
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Dismuke WM, Klingeborn M, Stamer WD. Mechanism of Fibronectin Binding to Human Trabecular Meshwork Exosomes and Its Modulation by Dexamethasone. PLoS One 2016; 11:e0165326. [PMID: 27783649 PMCID: PMC5081181 DOI: 10.1371/journal.pone.0165326] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2016] [Accepted: 10/10/2016] [Indexed: 12/13/2022] Open
Abstract
Exosomes are emerging as important mediators of cell-matrix interactions by means of specific adhesion proteins. Changes in the tissue-specific exosomal protein expression may underlie pathological conditions whereby extracellular matrix turnover and homeostasis is disrupted. Ocular hypertension due to extracellular matrix accumulation in the trabecular meshwork is a hallmark of glucocorticoid-induced glaucoma. In the trabecular meshwork, exosomal fibronectin mediates cell matrix interactions at cellular structures called “invadosomes”. Trabecular meshwork cells use invadosomes to turn over their surrounding matrix and maintain passageways for flow of aqueous humor. In this study, we observed that human trabecular meshwork explants treated with dexamethasone released exosomes with significantly reduced amounts of fibronectin bound per exosome. Further, we found that exosome-fibronectin binding is heparan sulfate-dependent, consistent with our observation that trabecular meshwork exosomes are enriched in the heparin/heparan sulfate binding annexins A2 and A6. In this way, dexamethasone-treated explants released exosomes with a significant reduction in annexin A2 and A6 per exosome. Interestingly, we did not detect exosomal matrix metalloproteinases, but we identified abundant dipeptidyl peptidase 4, a serine protease whose activity was reduced on exosomes isolated from dexamethasone-treated explants. Together, our findings demonstrate mechanistically how corticosteroid-induced alterations in exosomal adhesion cargo and properties can account for the pathological matrix accumulation seen in many glaucoma patients.
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Affiliation(s)
- W. Michael Dismuke
- Department of Ophthalmology, Duke University, Durham, North Carolina, United States of America
| | - Mikael Klingeborn
- Department of Ophthalmology, Duke University, Durham, North Carolina, United States of America
| | - W. Daniel Stamer
- Department of Ophthalmology, Duke University, Durham, North Carolina, United States of America
- Department of Biomedical Engineering, Duke University, Durham, North Carolina, United States of America
- * E-mail:
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429
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Vogel R, Coumans FAW, Maltesen RG, Böing AN, Bonnington KE, Broekman ML, Broom MF, Buzás EI, Christiansen G, Hajji N, Kristensen SR, Kuehn MJ, Lund SM, Maas SLN, Nieuwland R, Osteikoetxea X, Schnoor R, Scicluna BJ, Shambrook M, de Vrij J, Mann SI, Hill AF, Pedersen S. A standardized method to determine the concentration of extracellular vesicles using tunable resistive pulse sensing. J Extracell Vesicles 2016; 5:31242. [PMID: 27680301 PMCID: PMC5040823 DOI: 10.3402/jev.v5.31242] [Citation(s) in RCA: 116] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2016] [Revised: 08/11/2016] [Accepted: 08/25/2016] [Indexed: 01/20/2023] Open
Abstract
BACKGROUND Understanding the pathogenic role of extracellular vesicles (EVs) in disease and their potential diagnostic and therapeutic utility is extremely reliant on in-depth quantification, measurement and identification of EV sub-populations. Quantification of EVs has presented several challenges, predominantly due to the small size of vesicles such as exosomes and the availability of various technologies to measure nanosized particles, each technology having its own limitations. MATERIALS AND METHODS A standardized methodology to measure the concentration of extracellular vesicles (EVs) has been developed and tested. The method is based on measuring the EV concentration as a function of a defined size range. Blood plasma EVs are isolated and purified using size exclusion columns (qEV) and consecutively measured with tunable resistive pulse sensing (TRPS). Six independent research groups measured liposome and EV samples with the aim to evaluate the developed methodology. Each group measured identical samples using up to 5 nanopores with 3 repeat measurements per pore. Descriptive statistics and unsupervised multivariate data analysis with principal component analysis (PCA) were used to evaluate reproducibility across the groups and to explore and visualise possible patterns and outliers in EV and liposome data sets. RESULTS PCA revealed good reproducibility within and between laboratories, with few minor outlying samples. Measured mean liposome (not filtered with qEV) and EV (filtered with qEV) concentrations had coefficients of variance of 23.9% and 52.5%, respectively. The increased variance of the EV concentration measurements could be attributed to the use of qEVs and the polydisperse nature of EVs. CONCLUSION The results of this study demonstrate the feasibility of this standardized methodology to facilitate comparable and reproducible EV concentration measurements.
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Affiliation(s)
- Robert Vogel
- School of Mathematics and Physics, The University of Queensland, St Lucia, QLD, Australia.,Izon Science Ltd., Burnside, Christchurch, New Zealand
| | - Frank A W Coumans
- Laboratory of Experimental Clinical Chemistry, Academic Medical Centre, University of Amsterdam, Amsterdam, The Netherlands
| | - Raluca G Maltesen
- Department of Clinical Biochemistry and Clinical Medicine, Aalborg University Hospital, Aalborg, Denmark
| | - Anita N Böing
- Laboratory of Experimental Clinical Chemistry, Academic Medical Centre, University of Amsterdam, Amsterdam, The Netherlands
| | | | - Marike L Broekman
- Department of Neurosurgery and Brain Center Rudolf Magnus, University Medical Center Utrecht, Utrecht, The Netherlands
| | | | - Edit I Buzás
- Department of Genetics, Cell and Immunobiology, Semmelweis University, Budapest, Hungary
| | | | - Najat Hajji
- Laboratory of Experimental Clinical Chemistry, Academic Medical Centre, University of Amsterdam, Amsterdam, The Netherlands
| | - Søren R Kristensen
- Department of Clinical Biochemistry and Clinical Medicine, Aalborg University Hospital, Aalborg, Denmark
| | - Meta J Kuehn
- Department of Biochemistry, Duke University, Medical Centre, Durham, NC, USA
| | - Sigrid M Lund
- Department of Clinical Biochemistry and Clinical Medicine, Aalborg University Hospital, Aalborg, Denmark
| | - Sybren L N Maas
- Department of Neurosurgery and Brain Center Rudolf Magnus, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Rienk Nieuwland
- Laboratory of Experimental Clinical Chemistry, Academic Medical Centre, University of Amsterdam, Amsterdam, The Netherlands
| | - Xabier Osteikoetxea
- Department of Genetics, Cell and Immunobiology, Semmelweis University, Budapest, Hungary
| | - Rosalie Schnoor
- Department of Neurosurgery and Brain Center Rudolf Magnus, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Benjamin J Scicluna
- Department of Biochemistry and Molecular Biology, Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Parkville, VIC, Australia.,Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Bundoora, VIC, Australia
| | - Mitch Shambrook
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Bundoora, VIC, Australia
| | - Jeroen de Vrij
- Department of Neurosurgery and Brain Center Rudolf Magnus, University Medical Center Utrecht, Utrecht, The Netherlands
| | | | - Andrew F Hill
- Department of Biochemistry and Molecular Biology, Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Parkville, VIC, Australia.,Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Bundoora, VIC, Australia
| | - Shona Pedersen
- Department of Clinical Biochemistry and Clinical Medicine, Aalborg University Hospital, Aalborg, Denmark;
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430
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Feller SM, Lewitzky M. Hunting for the ultimate liquid cancer biopsy - let the TEP dance begin. Cell Commun Signal 2016; 14:24. [PMID: 27677261 PMCID: PMC5039897 DOI: 10.1186/s12964-016-0147-9] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2016] [Accepted: 09/19/2016] [Indexed: 12/18/2022] Open
Abstract
Non-protein coding RNAs in different flavors (miRNAs, piRNAs, snoRNAs, lncRNAs, SHOT-RNAs), exosomes, large oncosomes, exoDNA and now tumor-educated platelets (TEPs) have emerged as crucial signal transmitting, transporting and regulating devices of cells in the last two decades. They are also establishing themselves increasingly in the realm of tumor research. We are currently witnessing a mushrooming of candidate entities for diagnostic and prognostic cancer detection and characterization tests that could have a major impact on how this diverse group of diseases is initially spotted and subsequently treated in the near future. But how do the new kids on the block stand up to the more established circulating tumor cells (CTCs) and circulating tumor DNA (ctDNA)? Without question, much earlier disease detection would be expected to save numerous lives. With all these new players around, will we finally win a major battle in the never-ending war against cancer?
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Affiliation(s)
- Stephan M Feller
- Institute of Molecular Medicine, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany.
| | - Marc Lewitzky
- Institute of Molecular Medicine, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany
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431
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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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432
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Greening DW, Ji H, Chen M, Robinson BWS, Dick IM, Creaney J, Simpson RJ. Secreted primary human malignant mesothelioma exosome signature reflects oncogenic cargo. Sci Rep 2016; 6:32643. [PMID: 27605433 PMCID: PMC5015102 DOI: 10.1038/srep32643] [Citation(s) in RCA: 76] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Accepted: 08/11/2016] [Indexed: 02/07/2023] Open
Abstract
Malignant mesothelioma (MM) is a highly-aggressive heterogeneous malignancy, typically diagnosed at advanced stage. An important area of mesothelioma biology and progression is understanding intercellular communication and the contribution of the secretome. Exosomes are secreted extracellular vesicles shown to shuttle cellular cargo and direct intercellular communication in the tumour microenvironment, facilitate immunoregulation and metastasis. In this study, quantitative proteomics was used to investigate MM-derived exosomes from distinct human models and identify select cargo protein networks associated with angiogenesis, metastasis, and immunoregulation. Utilising bioinformatics pathway/network analyses, and correlation with previous studies on tumour exosomes, we defined a select mesothelioma exosomal signature (mEXOS, 570 proteins) enriched in tumour antigens and various cancer-specific signalling (HPGD/ENO1/OSMR) and secreted modulators (FN1/ITLN1/MAMDC2/PDGFD/GBP1). Notably, such circulating cargo offers unique insights into mesothelioma progression and tumour microenvironment reprogramming. Functionally, we demonstrate that oncogenic exosomes facilitate the migratory capacity of fibroblast/endothelial cells, supporting the systematic model of MM progression associated with vascular remodelling and angiogenesis. We provide biophysical and proteomic characterisation of exosomes, define a unique oncogenic signature (mEXOS), and demonstrate the regulatory capacity of exosomes in cell migration/tube formation assays. These findings contribute to understanding tumour-stromal crosstalk in the context of MM, and potential new diagnostic and therapeutic extracellular targets.
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Affiliation(s)
- David W. Greening
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria 3086, Australia
| | - Hong Ji
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria 3086, Australia
| | - Maoshan Chen
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria 3086, Australia
| | - Bruce W. S. Robinson
- National Centre for Asbestos Related Diseases, School of Medicine and Pharmacology, University of Western Australia, 6009, Australia
- Department of Respiratory Medicine, Sir Charles Gairdner Hospital, Perth, Western Australia, 6009, Australia
| | - Ian M. Dick
- National Centre for Asbestos Related Diseases, School of Medicine and Pharmacology, University of Western Australia, 6009, Australia
| | - Jenette Creaney
- National Centre for Asbestos Related Diseases, School of Medicine and Pharmacology, University of Western Australia, 6009, Australia
- Australian Mesothelioma Tissue Bank, Sir Charles Gairdner Hospital, Perth, Western Australia, 6009, Australia
| | - Richard J. Simpson
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria 3086, Australia
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433
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Marote A, Teixeira FG, Mendes-Pinheiro B, Salgado AJ. MSCs-Derived Exosomes: Cell-Secreted Nanovesicles with Regenerative Potential. Front Pharmacol 2016; 7:231. [PMID: 27536241 PMCID: PMC4971062 DOI: 10.3389/fphar.2016.00231] [Citation(s) in RCA: 184] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Accepted: 07/15/2016] [Indexed: 12/12/2022] Open
Abstract
Exosomes are membrane-enclosed nanovesicles (30–150 nm) that shuttle active cargoes between different cells. These tiny extracellular vesicles have been recently isolated from mesenchymal stem cells (MSCs) conditioned medium, a population of multipotent cells identified in several adult tissues. MSCs paracrine activity has been already shown to be the key mediator of their elicited regenerative effects. On the other hand, the individual contribution of MSCs-derived exosomes for these effects is only now being unraveled. The administration of MSCs-derived exosomes has been demonstrated to restore tissue function in multiple diseases/injury models and to induce beneficial in vitro effects, mainly mediated by exosomal-enclosed miRNAs. Additionally, the source and the culture conditions of MSCs have been shown to influence the regenerative responses induced by exosomes. Therefore, these studies reveal that MSCs-derived exosomes hold a great potential for cell-free therapies that are safer and easier to manipulate than cell-based products. Nevertheless, this is an emerging research field and hence, further studies are required to understand the full dimension of this complex intercellular communication system and how it can be optimized to take full advantage of its therapeutic effects. In this mini-review, we summarize the most significant new advances in the regenerative properties of MSCs-derived exosomes and discuss the molecular mechanisms underlying these effects.
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Affiliation(s)
- Ana Marote
- Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho, BragaPortugal; ICVS/3B's, PT Government Associate Laboratory, Braga/GuimarãesPortugal
| | - Fábio G Teixeira
- Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho, BragaPortugal; ICVS/3B's, PT Government Associate Laboratory, Braga/GuimarãesPortugal
| | - Bárbara Mendes-Pinheiro
- Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho, BragaPortugal; ICVS/3B's, PT Government Associate Laboratory, Braga/GuimarãesPortugal
| | - António J Salgado
- Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho, BragaPortugal; ICVS/3B's, PT Government Associate Laboratory, Braga/GuimarãesPortugal
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434
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Exosomes in carcinogenesis: molecular palkis carry signals for the regulation of cancer progression and metastasis. J Cell Commun Signal 2016; 10:241-249. [PMID: 27473382 DOI: 10.1007/s12079-016-0338-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Accepted: 07/19/2016] [Indexed: 12/16/2022] Open
Abstract
Exosomes, which act as biological cargo vessels, are cell-released, phospholipid-enclosed vesicles. In eukaryotic cells, exosomes carry and exchange biological materials or signals for the benefit or detriment to the cells. Thereby, we consider exosomes to be molecular Palkis (carriers). Although exosomes are currently one of the most popularly researched cellular entities, they have remained largely enigmatic and warrant continued investigation into their structure and functions. These membraned vesicles are between 30 and 150 nm in diameter and are actively secreted by all cell types. While initially considered cellular "trash bags," recent years have revealed exosomes to be dynamic and multi-functional vesicles that may play a crucial role in cancer development, progression and metastasis. Thereby, they have the potential to be used in development of therapeutic modalities for cancer and other diseases. As more research studies emerge, it's becoming evident that exosomes are released by cells with a purpose and are representatives of certain cell types and disease conditions. Hence, they may also be used as biomarkers for the detection of cancer initiation, progression and organotropic metastatic growth of cancer cells. This review will focus on the recent developments achieved in identifying the role of exosomes in cancer development and progression as well as therapeutic implications. The review will also discuss the pitfalls of methodologies used for the extraction of exosomes.
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435
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Hurwitz SN, Conlon MM, Rider MA, Brownstein NC, Meckes DG. Nanoparticle analysis sheds budding insights into genetic drivers of extracellular vesicle biogenesis. J Extracell Vesicles 2016; 5:31295. [PMID: 27421995 PMCID: PMC4947197 DOI: 10.3402/jev.v5.31295] [Citation(s) in RCA: 115] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2016] [Revised: 06/02/2016] [Accepted: 06/07/2016] [Indexed: 01/22/2023] Open
Abstract
Background Extracellular vesicles (EVs) are important mediators of cell-to-cell communication in healthy and pathological environments. Because EVs are present in a variety of biological fluids and contain molecular signatures of their cell or tissue of origin, they have great diagnostic and prognostic value. The ability of EVs to deliver biologically active proteins, RNAs and lipids to cells has generated interest in developing novel therapeutics. Despite their potential medical use, many of the mechanisms underlying EV biogenesis and secretion remain unknown. Methods Here, we characterized vesicle secretion across the NCI-60 panel of human cancer cells by nanoparticle tracking analysis. Using CellMiner, the quantity of EVs secreted by each cell line was compared to reference transcriptomics data to identify gene products associated with vesicle secretion. Results Gene products positively associated with the quantity of exosomal-sized vesicles included vesicular trafficking classes of proteins with Rab GTPase function and sphingolipid metabolism. Positive correlates of larger microvesicle-sized vesicle secretion included gene products involved in cytoskeletal dynamics and exocytosis, as well as Rab GTPase activation. One of the identified targets, CD63, was further evaluated for its role in vesicle secretion. Clustered regularly interspaced short palindromic repeat (CRISPR)/Cas9 knockout of the CD63 gene in HEK293 cells resulted in a decrease in small vesicle secretion, suggesting the importance of CD63 in exosome biogenesis. Conclusion These observations reveal new insights into genes involved in exosome and microvesicle formation, and may provide a means to distinguish EV sub-populations. This study offers a foundation for further exploration of targets involved in EV biogenesis and secretion.
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Affiliation(s)
- Stephanie N Hurwitz
- Department of Biomedical Sciences, Florida State University College of Medicine, Tallahassee, FL, USA
| | - Meghan M Conlon
- Department of Biomedical Sciences, Florida State University College of Medicine, Tallahassee, FL, USA
| | - Mark A Rider
- Department of Biomedical Sciences, Florida State University College of Medicine, Tallahassee, FL, USA
| | - Naomi C Brownstein
- Department of Behavioral Sciences and Social Medicine, Florida State University College of Medicine, Tallahassee, FL, USA
| | - David G Meckes
- Department of Biomedical Sciences, Florida State University College of Medicine, Tallahassee, FL, USA;
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436
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Sinha S, Hoshino D, Hong NH, Kirkbride KC, Grega-Larson NE, Seiki M, Tyska MJ, Weaver AM. Cortactin promotes exosome secretion by controlling branched actin dynamics. J Cell Biol 2016; 214:197-213. [PMID: 27402952 PMCID: PMC4949450 DOI: 10.1083/jcb.201601025] [Citation(s) in RCA: 211] [Impact Index Per Article: 26.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2016] [Accepted: 06/28/2016] [Indexed: 12/11/2022] Open
Abstract
Sinha et al. show that the cytoskeletal and tumor-overexpressed protein cortactin promotes secretion of exosomes from cancer cells by stabilizing dynamic cortical actin docking sites for multivesicular endosomes, suggesting a potential mechanism by which cortactin may promote tumor aggressiveness. Exosomes are extracellular vesicles that influence cellular behavior and enhance cancer aggressiveness by carrying bioactive molecules. The mechanisms that regulate exosome secretion are poorly understood. Here, we show that the actin cytoskeletal regulatory protein cortactin promotes exosome secretion. Knockdown or overexpression of cortactin in cancer cells leads to a respective decrease or increase in exosome secretion, without altering exosome cargo content. Live-cell imaging revealed that cortactin controls both trafficking and plasma membrane docking of multivesicular late endosomes (MVEs). Regulation of exosome secretion by cortactin requires binding to the branched actin nucleating Arp2/3 complex and to actin filaments. Furthermore, cortactin, Rab27a, and coronin 1b coordinately control stability of cortical actin MVE docking sites and exosome secretion. Functionally, the addition of purified exosomes to cortactin-knockdown cells rescued defects of those cells in serum-independent growth and invasion. These data suggest a model in which cortactin promotes exosome secretion by stabilizing cortical actin-rich MVE docking sites.
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Affiliation(s)
- Seema Sinha
- Department of Cancer Biology, Vanderbilt University Medical School, Nashville, TN 37232
| | | | - Nan Hyung Hong
- Department of Cancer Biology, Vanderbilt University Medical School, Nashville, TN 37232
| | - Kellye C Kirkbride
- Department of Cancer Biology, Vanderbilt University Medical School, Nashville, TN 37232
| | - Nathan E Grega-Larson
- Department of Cell and Developmental Biology, Vanderbilt University Medical School, Nashville, TN 37232
| | - Motoharu Seiki
- Division of Cancer Cell Research, Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan
| | - Matthew J Tyska
- Department of Cell and Developmental Biology, Vanderbilt University Medical School, Nashville, TN 37232
| | - Alissa M Weaver
- Department of Cancer Biology, Vanderbilt University Medical School, Nashville, TN 37232 Department of Cell and Developmental Biology, Vanderbilt University Medical School, Nashville, TN 37232 Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN 37232
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437
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Watson DC, Bayik D, Srivatsan A, Bergamaschi C, Valentin A, Niu G, Bear J, Monninger M, Sun M, Morales-Kastresana A, Jones JC, Felber BK, Chen X, Gursel I, Pavlakis GN. Efficient production and enhanced tumor delivery of engineered extracellular vesicles. Biomaterials 2016; 105:195-205. [PMID: 27522254 DOI: 10.1016/j.biomaterials.2016.07.003] [Citation(s) in RCA: 247] [Impact Index Per Article: 30.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Revised: 07/01/2016] [Accepted: 07/05/2016] [Indexed: 12/20/2022]
Abstract
Extracellular vesicles (EV), including exosomes and microvesicles, are nano-sized intercellular communication vehicles that participate in a multitude of physiological processes. Due to their biological properties, they are also promising candidates for the systemic delivery of therapeutic compounds, such as cytokines, chemotherapeutic drugs, siRNAs and viral vectors. However, low EV production yield and rapid clearance of administered EV by liver macrophages limit their potential use as therapeutic vehicles. We have used a hollow-fiber bioreactor for the efficient production of bioactive EV bearing the heterodimeric cytokine complex Interleukin-15:Interleukin-15 receptor alpha. Bioreactor culture yielded ∼40-fold more EV per mL conditioned medium, as compared to conventional cell culture. Biophysical analysis and comparative proteomics suggested a more diverse population of EV in the bioreactor preparations, while serum protein contaminants were detectable only in conventional culture EV preparations. We also identified the Scavenger Receptor Class A family (SR-A) as a novel monocyte/macrophage uptake receptor for EV. In vivo blockade of SR-A with dextran sulfate dramatically decreased EV liver clearance in mice, while enhancing tumor accumulation. These findings facilitate development of EV therapeutic methods.
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Affiliation(s)
- Dionysios C Watson
- Human Retrovirus Section, Vaccine Branch, Center for Cancer Research, National Cancer Institute at Frederick, Frederick, MD 21702, United States; Department of Medicine, University of Patras, Greece
| | - Defne Bayik
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute at Frederick, Frederick, MD 21702, United States; Department of Molecular Biology and Genetics, Bilkent University, Ankara, 06800 Turkey
| | - Avinash Srivatsan
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, MD 20892, United States
| | - Cristina Bergamaschi
- Human Retrovirus Pathogenesis Section, Vaccine Branch, Center for Cancer Research, National Cancer Institute at Frederick, Frederick, MD 21702, United States
| | - Antonio Valentin
- Human Retrovirus Section, Vaccine Branch, Center for Cancer Research, National Cancer Institute at Frederick, Frederick, MD 21702, United States
| | - Gang Niu
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, MD 20892, United States
| | - Jenifer Bear
- Human Retrovirus Pathogenesis Section, Vaccine Branch, Center for Cancer Research, National Cancer Institute at Frederick, Frederick, MD 21702, United States
| | - Mitchell Monninger
- Pathology Division, United States Army Medical Research Institute of Infectious Diseases, Frederick, MD 21702, United States
| | - Mei Sun
- Pathology Division, United States Army Medical Research Institute of Infectious Diseases, Frederick, MD 21702, United States
| | - Aizea Morales-Kastresana
- Vaccine Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD 20892, United States
| | - Jennifer C Jones
- Vaccine Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD 20892, United States
| | - Barbara K Felber
- Human Retrovirus Pathogenesis Section, Vaccine Branch, Center for Cancer Research, National Cancer Institute at Frederick, Frederick, MD 21702, United States
| | - Xiaoyuan Chen
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, MD 20892, United States
| | - Ihsan Gursel
- Department of Molecular Biology and Genetics, Bilkent University, Ankara, 06800 Turkey
| | - George N Pavlakis
- Human Retrovirus Section, Vaccine Branch, Center for Cancer Research, National Cancer Institute at Frederick, Frederick, MD 21702, United States.
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438
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Deddens JC, Vrijsen KR, Colijn JM, Oerlemans MI, Metz CHG, van der Vlist EJ, Nolte-'t Hoen ENM, den Ouden K, Jansen Of Lorkeers SJ, van der Spoel TIG, Koudstaal S, Arkesteijn GJ, Wauben MHM, van Laake LW, Doevendans PA, Chamuleau SAJ, Sluijter JPG. Circulating Extracellular Vesicles Contain miRNAs and are Released as Early Biomarkers for Cardiac Injury. J Cardiovasc Transl Res 2016; 9:291-301. [PMID: 27383837 PMCID: PMC4990609 DOI: 10.1007/s12265-016-9705-1] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Accepted: 06/21/2016] [Indexed: 11/25/2022]
Abstract
Plasma-circulating microRNAs have been implicated as novel early biomarkers for myocardial infarction (MI) due to their high specificity for cardiac injury. For swift clinical translation of this potential biomarker, it is important to understand their temporal and spatial characteristics upon MI. Therefore, we studied the temporal release, potential source, and transportation of circulating miRNAs in different models of ischemia reperfusion (I/R) injury. We demonstrated that extracellular vesicles are released from the ischemic myocardium upon I/R injury. Moreover, we provided evidence that cardiac and muscle-specific miRNAs are transported by extracellular vesicles and are rapidly detectable in plasma. Since these vesicles are enriched for the released miRNAs and their detection precedes traditional damage markers, they hold great potential as specific early biomarkers for MI.
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Affiliation(s)
- Janine C Deddens
- Department of Cardiology, University Medical Center Utrecht, Utrecht, The Netherlands
- Netherlands Heart Institute (ICIN), Utrecht, The Netherlands
| | - Krijn R Vrijsen
- Department of Cardiology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Johanna M Colijn
- Department of Cardiology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Martinus I Oerlemans
- Department of Cardiology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Corina H G Metz
- Department of Cardiology, University Medical Center Utrecht, Utrecht, The Netherlands
- UMC Utrecht Regenerative Medicine Center, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Els J van der Vlist
- Department of Biochemistry and Cell Biology, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - Esther N M Nolte-'t Hoen
- Department of Biochemistry and Cell Biology, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - Krista den Ouden
- UMC Utrecht Regenerative Medicine Center, University Medical Center Utrecht, Utrecht, The Netherlands
| | | | | | - Stefan Koudstaal
- Department of Cardiology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Ger J Arkesteijn
- Department of Biochemistry and Cell Biology, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - Marca H M Wauben
- Department of Biochemistry and Cell Biology, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - Linda W van Laake
- Department of Cardiology, University Medical Center Utrecht, Utrecht, The Netherlands
- UMC Utrecht Regenerative Medicine Center, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Pieter A Doevendans
- Department of Cardiology, University Medical Center Utrecht, Utrecht, The Netherlands
- UMC Utrecht Regenerative Medicine Center, University Medical Center Utrecht, Utrecht, The Netherlands
- Netherlands Heart Institute (ICIN), Utrecht, The Netherlands
| | - Steven A J Chamuleau
- Department of Cardiology, University Medical Center Utrecht, Utrecht, The Netherlands
- UMC Utrecht Regenerative Medicine Center, University Medical Center Utrecht, Utrecht, The Netherlands
- Netherlands Heart Institute (ICIN), Utrecht, The Netherlands
| | - Joost P G Sluijter
- Department of Cardiology, University Medical Center Utrecht, Utrecht, The Netherlands.
- UMC Utrecht Regenerative Medicine Center, University Medical Center Utrecht, Utrecht, The Netherlands.
- Netherlands Heart Institute (ICIN), Utrecht, The Netherlands.
- Department of Cardiology, Experimental Cardiology Laboratory, University Medical Center Utrecht, Heidelberglaan 100, PO Box 85500, 3508 GA, Utrecht, The Netherlands.
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439
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Luminal Extracellular Vesicles (EVs) in Inflammatory Bowel Disease (IBD) Exhibit Proinflammatory Effects on Epithelial Cells and Macrophages. Inflamm Bowel Dis 2016; 22:1587-95. [PMID: 27271497 PMCID: PMC4911338 DOI: 10.1097/mib.0000000000000840] [Citation(s) in RCA: 80] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND Extracellular vesicles (EVs) are membrane-enclosed particles released by cells as a means of intercellular communication. They are potential novel biomarkers, as they are readily isolated from body fluids, and their composition reflects disease pathways. Whether these particles are released from sites of intestinal inflammation in inflammatory bowel disease (IBD) has not previously been determined. METHODS EVs were isolated by ultracentrifugation of colonic luminal fluid aspirates and characterized according to surface proteins, and constituent mRNA and proteins. The effects of EVs on colonic epithelial cells and macrophages in culture were assessed at the transcriptional, translational, and functional levels. RESULTS Intestinal luminal aspirates contained abundant EVs, at a mean concentration of 4.3 × 10 particles/mL and with a mean diameter of 146 nm. EVs from patients with IBD with a high endoscopic score (≥1) contained significantly higher mRNA and protein levels of interleukin 6 (IL-6), IL-8, IL-10, and tumor necrosis factor α than EVs from healthy controls. EVs were absorbed by cultured colonic epithelial cells, leading to an increased translation of IL-8 protein by recipient cells when treated with EVs from patients with IBD. EVs and EV-treated epithelial cells induced migration of a significantly greater number of macrophages than epithelial cells alone. CONCLUSIONS EVs shed from sites of intestinal inflammation in patients with IBD have a distinct mRNA and protein profile from those of healthy individuals. These EVs have proinflammatory effects on the colonic epithelium, in vitro. Their stability in luminal samples and their mRNA and protein content identify them as a potential fecal biomarker that reflects mucosal inflammatory pathways.
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440
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Extracellular vesicles in renal tissue damage and regeneration. Eur J Pharmacol 2016; 790:83-91. [PMID: 27375075 DOI: 10.1016/j.ejphar.2016.06.058] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Revised: 06/10/2016] [Accepted: 06/30/2016] [Indexed: 12/22/2022]
Abstract
Extracellular vesicles (EVs) appear as important actors in cell-to-cell communication. EV content is characterized by proteins and RNA species that dynamically reflect cell and tissue state. Urinary EVs in particular may act in inter-nephron communication with possible beneficial or detrimental effects. Increasing interest is addressed to the pharmacological properties of EVs as a cell-free therapy, since several of the effects crAQ/tgqcedited to stem cells have been recapitulated by administration of their EVs. Preclinical data in models of renal damage indicate a general regenerative potential of EVs derived from mesenchymal stromal cells of different sources, including bone marrow, fetal tissues, urine and kidney. In this review we will discuss the results on the effect of EVs in repair of acute and chronic renal injury, and the mechanisms involved. In addition, we will analyse the strategies for EV pharmacological applications in renal regenerative medicine and limits and benefits involved.
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441
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Buschmann D, Haberberger A, Kirchner B, Spornraft M, Riedmaier I, Schelling G, Pfaffl MW. Toward reliable biomarker signatures in the age of liquid biopsies - how to standardize the small RNA-Seq workflow. Nucleic Acids Res 2016; 44:5995-6018. [PMID: 27317696 PMCID: PMC5291277 DOI: 10.1093/nar/gkw545] [Citation(s) in RCA: 78] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Accepted: 06/03/2016] [Indexed: 12/21/2022] Open
Abstract
Small RNA-Seq has emerged as a powerful tool in transcriptomics, gene expression profiling and biomarker discovery. Sequencing cell-free nucleic acids, particularly microRNA (miRNA), from liquid biopsies additionally provides exciting possibilities for molecular diagnostics, and might help establish disease-specific biomarker signatures. The complexity of the small RNA-Seq workflow, however, bears challenges and biases that researchers need to be aware of in order to generate high-quality data. Rigorous standardization and extensive validation are required to guarantee reliability, reproducibility and comparability of research findings. Hypotheses based on flawed experimental conditions can be inconsistent and even misleading. Comparable to the well-established MIQE guidelines for qPCR experiments, this work aims at establishing guidelines for experimental design and pre-analytical sample processing, standardization of library preparation and sequencing reactions, as well as facilitating data analysis. We highlight bottlenecks in small RNA-Seq experiments, point out the importance of stringent quality control and validation, and provide a primer for differential expression analysis and biomarker discovery. Following our recommendations will encourage better sequencing practice, increase experimental transparency and lead to more reproducible small RNA-Seq results. This will ultimately enhance the validity of biomarker signatures, and allow reliable and robust clinical predictions.
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Affiliation(s)
- Dominik Buschmann
- Department of Animal Physiology and Immunology, TUM School of Life Sciences Weihenstephan, Technical University of Munich, Weihenstephaner Berg 3, 85354 Freising, Germany Institute of Human Genetics, University Hospital, Ludwig-Maximilians-University Munich, Goethestraße 29, 80336 München, Germany
| | - Anna Haberberger
- Department of Animal Physiology and Immunology, TUM School of Life Sciences Weihenstephan, Technical University of Munich, Weihenstephaner Berg 3, 85354 Freising, Germany
| | - Benedikt Kirchner
- Department of Animal Physiology and Immunology, TUM School of Life Sciences Weihenstephan, Technical University of Munich, Weihenstephaner Berg 3, 85354 Freising, Germany
| | - Melanie Spornraft
- Department of Animal Physiology and Immunology, TUM School of Life Sciences Weihenstephan, Technical University of Munich, Weihenstephaner Berg 3, 85354 Freising, Germany
| | - Irmgard Riedmaier
- Eurofins Medigenomix Forensik GmbH, Anzinger Straße 7a, 85560 Ebersberg, Germany Department of Anesthesiology, University Hospital, Ludwig-Maximilians-University Munich, Marchioninistraße 15, 81377 München, Germany
| | - Gustav Schelling
- Department of Physiology, TUM School of Life Sciences Weihenstephan, Technical University of Munich, Weihenstephaner Berg 3, 85354 Freising, Germany
| | - Michael W Pfaffl
- Department of Animal Physiology and Immunology, TUM School of Life Sciences Weihenstephan, Technical University of Munich, Weihenstephaner Berg 3, 85354 Freising, Germany
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442
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Barger JF, Rahman MA, Jackson D, Acunzo M, Nana-Sinkam SP. Extracellular miRNAs as biomarkers in cancer. Food Chem Toxicol 2016; 98:66-72. [PMID: 27311798 DOI: 10.1016/j.fct.2016.06.010] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Accepted: 06/09/2016] [Indexed: 02/07/2023]
Abstract
Cancer is the leading cause of death worldwide. Despite significant progress in the field leading to identification of molecular signatures of individual tumors and the development of targeted therapies, early cancer diagnosis remains a clinical challenge. The emerging era of personalized medicine has intensified research towards biomarkers that can be obtained via noninvasive means. The recent discovery of extracellular vesicles (EVs), nano-vesicles secreted by the cell, in circulation has stimulated interest in their clinical utility as cancer biomarkers. EVs are secreted from all types of cells and their contents reflect the physiological and pathological state of the cell. Multiple clinical trials are underway investigating the clinical potential of EV content to serve as biomarkers and therapeutics. However, much work remains to translate EV content into clinical application.
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Affiliation(s)
- Jennifer F Barger
- Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, The Ohio State University, Columbus, OH 43210, USA.
| | - Mohammad A Rahman
- Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, The Ohio State University, Columbus, OH 43210, USA
| | - Devine Jackson
- Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, The Ohio State University, Columbus, OH 43210, USA
| | - Mario Acunzo
- Department of Molecular Virology, Immunology and Medical Genetics, The Ohio State University, Columbus, OH 43210, USA
| | - S Patrick Nana-Sinkam
- Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, The Ohio State University, Columbus, OH 43210, USA; Department of Molecular Virology, Immunology and Medical Genetics, The Ohio State University, Columbus, OH 43210, USA; Division of Medical Oncology, James Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, USA
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443
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Comparative transcriptomic analysis of human and Drosophila extracellular vesicles. Sci Rep 2016; 6:27680. [PMID: 27282340 PMCID: PMC4901365 DOI: 10.1038/srep27680] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Accepted: 05/19/2016] [Indexed: 12/25/2022] Open
Abstract
Extracellular vesicles (EVs) are membrane-enclosed nanoparticles containing specific repertoires of genetic material. In mammals, EVs can mediate the horizontal transfer of various cargos and signaling molecules, notably miRNA and mRNA species. Whether this form of intercellular communication prevails in other metazoans remains unclear. Here, we report the first parallel comparative morphologic and transcriptomic characterization of EVs from Drosophila and human cellular models. Electronic microscopy revealed that human and Drosophila cells release similar EVs with diameters ranging from 30 to 200 nm, which contain complex populations of transcripts. RNA-seq identified abundant ribosomal RNAs, related pseudogenes and retrotransposons in human and Drosophila EVs. Vault RNAs and Y RNAs abounded in human samples, whereas small nucleolar RNAs involved in pseudouridylation were most prevalent in Drosophila EVs. Numerous mRNAs were identified, largely consisting of exonic sequences displaying full-length read coverage and enriched for translation and electronic transport chain functions. By analogy with human systems, these sizeable similarities suggest that EVs could potentially enable RNA-mediated intercellular communication in Drosophila.
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444
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Greening DW, Nguyen HPT, Evans J, Simpson RJ, Salamonsen LA. Modulating the endometrial epithelial proteome and secretome in preparation for pregnancy: The role of ovarian steroid and pregnancy hormones. J Proteomics 2016; 144:99-112. [PMID: 27262222 DOI: 10.1016/j.jprot.2016.05.026] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Revised: 04/21/2016] [Accepted: 05/24/2016] [Indexed: 12/30/2022]
Abstract
UNLABELLED Dialogue between an appropriately developed embryo and hormonally-primed endometrium is essential to achieve implantation and establish pregnancy. Importantly, the point-of-first-contact between the embryo and the maternal endometrium occurs at the endometrial luminal epithelium (LE). Implantation events occur within the uterine cavity microenvironment regulated by local factors. Defects in embryo-endometrial communication likely underlie unexplained infertility; enhanced knowledge of this communication, specifically at initial maternal-fetal contact may reveal targets to improve fertility. Using a human endometrial luminal-epithelial (LE) cell line (ECC1), this targeted proteomic study reveals unique protein changes in both cellular (98% unique identifications) and secreted (96% unique identifications) proteins in the transition to the progesterone-dominated secretory (receptive) phase and subsequently to pregnancy, mediated by embryo-derived human chorionic gonadotropin (hCG). This analysis identified 157 progesterone-regulated cellular proteins, with further 193 significantly altered in response to hCG. Cellular changes were associated with metabolism, basement membrane and cell connectivity, proliferation and differentiation. Secretome analysis identified 1059 proteins; 123 significantly altered by progesterone, and 43 proteins altered by hCG, including proteins associated with cellular adhesion, extracellular-matrix organization, developmental growth, growth factor regulation, and cell signaling. Collectively, our findings reveal dynamic intracellular and secreted protein changes in the endometrium that may modulate successful establishment of pregnancy. BIOLOGICAL SIGNIFICANCE This study provides unique insights into the developmental biology of embryo implantation using targeted proteomics by identifying endometrial epithelial cellular and secreted protein changes in response to ovarian steroid hormones and pregnancy hormones that are essential for receptivity and implantation.
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Affiliation(s)
- David W Greening
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria 3086, Australia.
| | - Hong P T Nguyen
- Hudson Institute of Medical Research (previously Prince Henry's Institute), Clayton, Victoria 3168, Australia.
| | - Jemma Evans
- Hudson Institute of Medical Research (previously Prince Henry's Institute), Clayton, Victoria 3168, Australia
| | - Richard J Simpson
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria 3086, Australia
| | - Lois A Salamonsen
- Hudson Institute of Medical Research (previously Prince Henry's Institute), Clayton, Victoria 3168, Australia
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445
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Kishore R, Garikipati VNS, Gumpert A. Tiny Shuttles for Information Transfer: Exosomes in Cardiac Health and Disease. J Cardiovasc Transl Res 2016; 9:169-175. [PMID: 26911150 PMCID: PMC4874852 DOI: 10.1007/s12265-016-9682-4] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2015] [Accepted: 02/14/2016] [Indexed: 02/06/2023]
Abstract
Intercellular communication mediated by exosomes, nano-sized extracellular vesicles, is crucial for preserving vascular integrity and in the development of cardiovascular and other diseases. As natural carriers of signal molecules, exosomes released from sources such as blood cells, endothelial cells, immune cells, smooth muscle cells, etc., can modify a multitude of cellular bioactivities. They do so by shuttling lipids, proteins, and nucleic acids between donor and recipient cells while circulating in body fluids and in the extracellular space. A recent surge of interest in the field of exosomal biology is in part due to the recognition that the molecules they carry can act as facilitators of both pathogenesis but can also initiate protective and rescue signaling. This mini-review describes current knowledge on exosome function in health and disease including cardiovascular disease.
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Affiliation(s)
- Raj Kishore
- Center for Translational Medicine, Temple University School of Medicine, MERB-953 3500 N Broad Street, Philadelphia, PA, 19140, USA.
- Department of Pharmacology, Temple University School of Medicine, Philadelphia, PA, 19140, USA.
| | - Venkata Naga Srikanth Garikipati
- Center for Translational Medicine, Temple University School of Medicine, MERB-953 3500 N Broad Street, Philadelphia, PA, 19140, USA
| | - Anna Gumpert
- Center for Translational Medicine, Temple University School of Medicine, MERB-953 3500 N Broad Street, Philadelphia, PA, 19140, USA
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446
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He M, Zeng Y. Microfluidic Exosome Analysis toward Liquid Biopsy for Cancer. ACTA ACUST UNITED AC 2016; 21:599-608. [PMID: 27215792 DOI: 10.1177/2211068216651035] [Citation(s) in RCA: 119] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Indexed: 12/20/2022]
Abstract
Assessment of a tumor's molecular makeup using biofluid samples, known as liquid biopsy, is a prominent research topic in precision medicine for cancer, due to its noninvasive property allowing repeat sampling for monitoring molecular changes of tumors over time. Circulating exosomes recently have been recognized as promising tumor surrogates because they deliver enriched biomarkers, such as proteins, RNAs, and DNA. However, purification and characterization of these exosomes are technically challenging. Microfluidic lab-on-a-chip technology effectively addresses these challenges owing to its inherent advantages in integration and automation of multiple functional modules, enhancing sensing performance, and expediting analysis processes. In this article, we review the state-of-the-art development of microfluidic technologies for exosome isolation and molecular characterization with emphasis on their applications toward liquid biopsy-based analysis of cancer. Finally, we share our perspectives on current challenges and future directions of microfluidic exosome analysis.
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Affiliation(s)
- Mei He
- Department of Biological and Agricultural Engineering, College of Engineering, Kansas State University, Manhattan, KS, USA
| | - Yong Zeng
- Department of Chemistry, University of Kansas, Lawrence, KS, USA
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447
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Guzman NA, Guzman DE. An emerging micro-scale immuno-analytical diagnostic tool to see the unseen. Holding promise for precision medicine and P4 medicine. J Chromatogr B Analyt Technol Biomed Life Sci 2016; 1021:14-29. [DOI: 10.1016/j.jchromb.2015.11.026] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2015] [Revised: 11/15/2015] [Accepted: 11/17/2015] [Indexed: 01/10/2023]
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448
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Pitt JM, Kroemer G, Zitvogel L. Extracellular vesicles: masters of intercellular communication and potential clinical interventions. J Clin Invest 2016; 126:1139-43. [PMID: 27035805 DOI: 10.1172/jci87316] [Citation(s) in RCA: 335] [Impact Index Per Article: 41.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Intercellular signaling via extracellular vesicles (EVs) is an underappreciated modality of cell-cell crosstalk that enables cells to convey packages of complex instructions to specific recipient cells. EVs transmit these instructions through their cargoes of multiple proteins, nucleic acids, and specialized lipids, which are derived from their cells of origin and allow for combinatorial effects upon recipient cells. This Review series brings together the recent progress in our understanding of EV signaling in physiological and pathophysiological conditions, highlighting how certain EVs, particularly exosomes, can promote or regulate infections, host immune responses, development, and various diseases - notably cancer. Given the diverse nature of EVs and their abilities to profoundly modulate host cells, this series puts particular emphasis on the clinical applications of EVs as therapeutics and as diagnostic biomarkers.
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449
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Xu R, Greening DW, Zhu HJ, Takahashi N, Simpson RJ. Extracellular vesicle isolation and characterization: toward clinical application. J Clin Invest 2016; 126:1152-62. [PMID: 27035807 DOI: 10.1172/jci81129] [Citation(s) in RCA: 599] [Impact Index Per Article: 74.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Two broad categories of extracellular vesicles (EVs), exosomes and shed microvesicles (sMVs), which differ in size distribution as well as protein and RNA profiles, have been described. EVs are known to play key roles in cell-cell communication, acting proximally as well as systemically. This Review discusses the nature of EV subtypes, strategies for isolating EVs from both cell-culture media and body fluids, and procedures for quantifying EVs. We also discuss proteins selectively enriched in exosomes and sMVs that have the potential for use as markers to discriminate between EV subtypes, as well as various applications of EVs in clinical diagnosis.
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450
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Zhang M, Viennois E, Xu C, Merlin D. Plant derived edible nanoparticles as a new therapeutic approach against diseases. Tissue Barriers 2016; 4:e1134415. [PMID: 27358751 DOI: 10.1080/21688370.2015.1134415] [Citation(s) in RCA: 184] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2015] [Revised: 12/15/2015] [Accepted: 12/16/2015] [Indexed: 12/17/2022] Open
Abstract
In plant cells, nanoparticles containing miRNA, bioactive lipids and proteins serve as extracellular messengers to mediate cell-cell communication in a manner similar to the exosomes secreted by mammalian cells. Notably, such nanoparticles are edible. Moreover, given the proper origin and cargo, plant derived edible nanoparticles could function in interspecies communication and may serve as natural therapeutics against a variety of diseases. In addition, nanoparticles made of plant-derived lipids may be used to efficiently deliver specific drugs. Plant derived edible nanoparticles could be more easily scaled up for mass production, compared to synthetic nanoparticles. In this review, we discuss recent significant developments pertaining to plant derived edible nanoparticles and provide insight into the use of plants as a bio-renewable, sustainable, diversified platform for the production of therapeutic nanoparticles.
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Affiliation(s)
- Mingzhen Zhang
- Institute for Biomedical Sciences, Georgia State University, Atlanta, GA, USA; Center for Diagnostics and Therapeutics, Georgia State University, Atlanta, GA, USA
| | - Emilie Viennois
- Institute for Biomedical Sciences, Georgia State University, Atlanta, GA, USA; Center for Diagnostics and Therapeutics, Georgia State University, Atlanta, GA, USA
| | - Changlong Xu
- Institute for Biomedical Sciences, Georgia State University, Atlanta, GA, USA; The 2nd Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Didier Merlin
- Institute for Biomedical Sciences, Georgia State University, Atlanta, GA, USA; Center for Diagnostics and Therapeutics, Georgia State University, Atlanta, GA, USA; Atlanta Veterans Affairs Medical Center, Decatur, GA, USA
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