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Stem Cell Exosomes Improve Survival of Neural Stem Cells after Radiation Exposure. Bull Exp Biol Med 2022; 173:544-552. [DOI: 10.1007/s10517-022-05587-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Indexed: 10/14/2022]
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2
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Wu JY, Li YJ, Hu XB, Huang S, Xiang DX. Preservation of small extracellular vesicles for functional analysis and therapeutic applications: a comparative evaluation of storage conditions. Drug Deliv 2021; 28:162-170. [PMID: 33427518 PMCID: PMC7808382 DOI: 10.1080/10717544.2020.1869866] [Citation(s) in RCA: 69] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Extracellular vesicles (EVs) are nanovesicles involved in multiple biological functions. Small EVs (sEVs) are emerging as therapeutics and drug delivery systems for their contents, natural carrier properties, and nanoscale size. Despite various clinical application potentials, little is known about the effects of storage conditions on sEVs for functional analysis and therapeutic use. In this study, we evaluated the stability of sEVs stored at 4 °C, −20 °C, and −80 °C up to 28 days and compared them to fresh sEVs. Also, the effect of freeze-thawing circles on the quantity of sEVs was assessed. We found that different storage temperatures, along with shelf life, impact the stability of sEVs when compared to freshly isolated sEVs. Storage changes the size distribution, decreases quantity and contents, and impacts cellular uptake and biodistribution of sEVs. For functional studies, isolated sEVs are suggested to be analyzed freshly or stored at 4 °C or −20 °C for short-term preservation depending on study design; but −80 °C condition would be more preferable for long-term preservation of sEVs for therapeutic application.
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Affiliation(s)
- Jun-Yong Wu
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, China.,Hunan Provincial Engineering Research Center of Translational Medicine and Innovative Drug, Changsha, China.,Institute of Clinical Pharmacy, Central South University, Changsha, China
| | - Yong-Jiang Li
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, China.,Hunan Provincial Engineering Research Center of Translational Medicine and Innovative Drug, Changsha, China.,Institute of Clinical Pharmacy, Central South University, Changsha, China
| | - Xiong-Bin Hu
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, China.,Hunan Provincial Engineering Research Center of Translational Medicine and Innovative Drug, Changsha, China.,Institute of Clinical Pharmacy, Central South University, Changsha, China
| | - Si Huang
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, China.,Hunan Provincial Engineering Research Center of Translational Medicine and Innovative Drug, Changsha, China.,Institute of Clinical Pharmacy, Central South University, Changsha, China
| | - Da-Xiong Xiang
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, China.,Hunan Provincial Engineering Research Center of Translational Medicine and Innovative Drug, Changsha, China.,Institute of Clinical Pharmacy, Central South University, Changsha, China
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3
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Yang HC, Ham YM, Kim JA, Rhee WJ. Single-step equipment-free extracellular vesicle concentration using super absorbent polymer beads. J Extracell Vesicles 2021; 10:e12074. [PMID: 33664938 PMCID: PMC7902527 DOI: 10.1002/jev2.12074] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 02/02/2021] [Accepted: 02/14/2021] [Indexed: 12/21/2022] Open
Abstract
Extracellular vesicles (EVs) contain useful biomarkers for disease diagnosis and are promising biomaterials for the delivery of therapeutic molecules in vivo. Accordingly, an efficient concentration method is necessary for large‐scale production or high‐throughput isolation of EVs from bulk liquid samples, including culture medium and body fluids, to achieve their clinical application. However, current EV concentration methods, including ultrafiltration, are limited with respect to cost, efficiency, and centrifugation time. In this study, we developed the first single‐step, equipment‐free EV concentration method using super absorbent polymer (SAP) beads. SAP beads absorb small molecules, including water, via nano‐sized channels but expel and thereby concentrate EVs. Consequently, the beads drastically enrich EVs by reducing the solution volume in a single step, without affecting EV characteristics. Moreover, the purity of the concentrated EV solution was high due to the absorption of protein impurities by SAP beads. To further demonstrate the versatility of the method, we showed that SAP beads successfully enrich EVs in human urine samples and culture medium, enabling better isolation performance than conventional ultrafiltration. We believe the newly developed approach and insight gained in this study will facilitate the use of EVs as prominent biomaterials for disease diagnosis and therapy.
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Affiliation(s)
- Hee Cheol Yang
- Department of Bioengineering and Nano-Bioengineering Incheon National University Incheon Republic of Korea
| | - Yoo Min Ham
- Department of Bioengineering and Nano-Bioengineering Incheon National University Incheon Republic of Korea
| | - Jeong Ah Kim
- Center for Scientific Instrumentation Korea Basic Science Institute Chungbuk Republic of Korea.,Department of Bio-Analytical Science University of Science and Technology Daejeon Republic of Korea
| | - Won Jong Rhee
- Department of Bioengineering and Nano-Bioengineering Incheon National University Incheon Republic of Korea.,Division of Bioengineering Incheon National University Incheon Republic of Korea
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4
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Talebjedi B, Tasnim N, Hoorfar M, Mastromonaco GF, De Almeida Monteiro Melo Ferraz M. Exploiting Microfluidics for Extracellular Vesicle Isolation and Characterization: Potential Use for Standardized Embryo Quality Assessment. Front Vet Sci 2021; 7:620809. [PMID: 33469556 PMCID: PMC7813816 DOI: 10.3389/fvets.2020.620809] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Accepted: 12/04/2020] [Indexed: 12/12/2022] Open
Abstract
Recent decades have seen a growing interest in the study of extracellular vesicles (EVs), driven by their role in cellular communication, and potential as biomarkers of health and disease. Although it is known that embryos secrete EVs, studies on the importance of embryonic EVs are still very limited. This limitation is due mainly to small sample volumes, with low EV concentrations available for analysis, and to laborious, costly and time-consuming procedures for isolating and evaluating EVs. In this respect, microfluidics technologies represent a promising avenue for optimizing the isolation and characterization of embryonic EVs. Despite significant improvements in microfluidics for EV isolation and characterization, the use of EVs as markers of embryo quality has been held back by two key challenges: (1) the lack of specific biomarkers of embryo quality, and (2) the limited number of studies evaluating the content of embryonic EVs across embryos with varying developmental competence. Our core aim in this review is to identify the critical challenges of EV isolation and to provide seeds for future studies to implement the profiling of embryonic EVs as a diagnostic test for embryo selection. We first summarize the conventional methods for isolating EVs and contrast these with the most promising microfluidics methods. We then discuss current knowledge of embryonic EVs and their potential role as biomarkers of embryo quality. Finally, we identify key ways in which microfluidics technologies could allow researchers to overcome the challenges of embryonic EV isolation and be used as a fast, user-friendly tool for non-invasive embryo selection.
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Affiliation(s)
- Bahram Talebjedi
- School of Engineering, University of British Columbia, Kelowna, BC, Canada
| | - Nishat Tasnim
- School of Engineering, University of British Columbia, Kelowna, BC, Canada
| | - Mina Hoorfar
- School of Engineering, University of British Columbia, Kelowna, BC, Canada
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5
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Shtam T, Evtushenko V, Samsonov R, Zabrodskaya Y, Kamyshinsky R, Zabegina L, Verlov N, Burdakov V, Garaeva L, Slyusarenko M, Nikiforova N, Konevega A, Malek A. Evaluation of immune and chemical precipitation methods for plasma exosome isolation. PLoS One 2020; 15:e0242732. [PMID: 33232386 PMCID: PMC7685508 DOI: 10.1371/journal.pone.0242732] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Accepted: 11/06/2020] [Indexed: 01/08/2023] Open
Abstract
Exosomes are a type of extracellular vesicles (EVs) secreted by multiple mammalian cell types and involved in intercellular communication. Numerous studies have explored the diagnostic and therapeutic potential of exosomes. The key challenge is the lack of efficient and standard techniques for isolation and downstream analysis of nanovesicles. Conventional isolation methods, such as ultracentrifugation, precipitation, filtration, chromatography, and immune-affinity-based approaches, rely on specific physical properties or on surface biomarkers. However, any of the existing methods has its limitations. Various parameters, such as efficacy, specificity, labor input, cost and scalability, and standardization options, must be considered for the correct choice of appropriate approach. The isolation of exosomes from biological fluids is especially challenged by the complex nature and variability of these liquids. Here, we present a comparison of five protocols for exosome isolation from human plasma: two chemical affinity precipitation methods (lectin-based purification and SubX™ technology), immunoaffinity precipitation, and reference ultracentrifugation-based exosome isolation method in two modifications. An approach for the isolation of exosomes based on the phenomenon of binding and aggregation of these particles via clusters of outer membrane phosphate groups in the presence of SubX™ molecules has been put forward in the present study. The isolated EVs were characterized based upon size, quantity, and protein content.
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Affiliation(s)
- Tatiana Shtam
- Petersburg Nuclear Physics Institute named by B.P. Konstantinov of National Research Center "Kurchatov Institute", Gatchina, Russia
- N.N. Petrov National Medical Research Center of Oncology, St. Petersburg, Russia
- National Research Center “Kurchatov Institute”, Moscow, Russia
- * E-mail: (TS); (AM)
| | - Vladimir Evtushenko
- Russian Scientific Center of Radiology and Surgical Technologies named by academician A.M. Granov, St. Petersburg, Russia
| | - Roman Samsonov
- N.N. Petrov National Medical Research Center of Oncology, St. Petersburg, Russia
- Russian Scientific Center of Radiology and Surgical Technologies named by academician A.M. Granov, St. Petersburg, Russia
| | - Yana Zabrodskaya
- Petersburg Nuclear Physics Institute named by B.P. Konstantinov of National Research Center "Kurchatov Institute", Gatchina, Russia
- National Research Center “Kurchatov Institute”, Moscow, Russia
- Peter the Great St. Petersburg Polytechnic University, St. Petersburg, Russia
| | - Roman Kamyshinsky
- National Research Center “Kurchatov Institute”, Moscow, Russia
- Shubnikov Institute of Crystallography of Federal Scientific Research Centre “Crystallography and Photonics” of Russian Academy of Sciences, Moscow, Russia
| | - Lidia Zabegina
- N.N. Petrov National Medical Research Center of Oncology, St. Petersburg, Russia
- Peter the Great St. Petersburg Polytechnic University, St. Petersburg, Russia
- Ltd Oncosystem, Skolkovo Innovation Center, Moscow, Russia
| | - Nikolay Verlov
- Petersburg Nuclear Physics Institute named by B.P. Konstantinov of National Research Center "Kurchatov Institute", Gatchina, Russia
- National Research Center “Kurchatov Institute”, Moscow, Russia
| | - Vladimir Burdakov
- Petersburg Nuclear Physics Institute named by B.P. Konstantinov of National Research Center "Kurchatov Institute", Gatchina, Russia
- National Research Center “Kurchatov Institute”, Moscow, Russia
| | - Luiza Garaeva
- Petersburg Nuclear Physics Institute named by B.P. Konstantinov of National Research Center "Kurchatov Institute", Gatchina, Russia
- National Research Center “Kurchatov Institute”, Moscow, Russia
- Peter the Great St. Petersburg Polytechnic University, St. Petersburg, Russia
| | - Maria Slyusarenko
- N.N. Petrov National Medical Research Center of Oncology, St. Petersburg, Russia
- Ltd Oncosystem, Skolkovo Innovation Center, Moscow, Russia
| | - Nadezhda Nikiforova
- N.N. Petrov National Medical Research Center of Oncology, St. Petersburg, Russia
- Ltd Oncosystem, Skolkovo Innovation Center, Moscow, Russia
| | - Andrey Konevega
- Petersburg Nuclear Physics Institute named by B.P. Konstantinov of National Research Center "Kurchatov Institute", Gatchina, Russia
- National Research Center “Kurchatov Institute”, Moscow, Russia
- Peter the Great St. Petersburg Polytechnic University, St. Petersburg, Russia
| | - Anastasia Malek
- N.N. Petrov National Medical Research Center of Oncology, St. Petersburg, Russia
- Ltd Oncosystem, Skolkovo Innovation Center, Moscow, Russia
- * E-mail: (TS); (AM)
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6
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Emelyanov A, Shtam T, Kamyshinsky R, Garaeva L, Verlov N, Miliukhina I, Kudrevatykh A, Gavrilov G, Zabrodskaya Y, Pchelina S, Konevega A. Cryo-electron microscopy of extracellular vesicles from cerebrospinal fluid. PLoS One 2020; 15:e0227949. [PMID: 31999742 PMCID: PMC6991974 DOI: 10.1371/journal.pone.0227949] [Citation(s) in RCA: 76] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Accepted: 01/03/2020] [Indexed: 12/19/2022] Open
Abstract
Extracellular vesicles (EVs) are membrane-enclosed vesicles which play important role for cell communication and physiology. EVs are found in many human biological fluids, including blood, breast milk, urine, cerebrospinal fluid (CSF), ejaculate, saliva etc. These nano-sized vesicles contain proteins, mRNAs, microRNAs, non-coding RNAs and lipids that are derived from producing cells. EVs deliver complex sets of biological information to recipient cells thereby modulating their behaviors by their molecular cargo. In this way EVs are involved in the pathological development and progression of many human disorders, including neurodegenerative diseases. In this study EVs purified by ultracentrifugation from CSF of patients with Parkinson's disease (PD) and individuals of the comparison group were characterized using nanoparticle tracking analysis, flow cytometry and cryo-electron microscopy. Vesicular size and the presence of exosomal marker CD9 on the surface provided evidence that most of the EVs were exosome-like vesicles. Cryo-electron microscopy allowed us to visualize a large spectrum of extracellular vesicles of various size and morphology with lipid bilayers and vesicular internal structures. Thus, we described the diversity and new characteristics of the vesicles from CSF suggesting that subpopulations of EVs with different and specific functions may exist.
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Affiliation(s)
- Anton Emelyanov
- Petersburg Nuclear Physics Institute named by B.P. Konstantinov of National Research Center «Kurchatov Institute», Gatchina, Russia
- Pavlov First Saint Petersburg State Medical University, St. Petersburg, Russia
| | - Tatiana Shtam
- Petersburg Nuclear Physics Institute named by B.P. Konstantinov of National Research Center «Kurchatov Institute», Gatchina, Russia
- National Research Center “Kurchatov Institute”, Moscow, Russia
| | - Roman Kamyshinsky
- National Research Center “Kurchatov Institute”, Moscow, Russia
- Shubnikov Institute of Crystallography of Federal Scientific Research Centre “Crystallography and Photonics” of Russian Academy of Sciences, Moscow, Russia
- Moscow Institute of Physics and Technology, Dolgoprudny, Moscow region, Russia
| | - Luiza Garaeva
- Petersburg Nuclear Physics Institute named by B.P. Konstantinov of National Research Center «Kurchatov Institute», Gatchina, Russia
- National Research Center “Kurchatov Institute”, Moscow, Russia
- Peter the Great St. Petersburg Polytechnic University, St. Petersburg, Russia
| | - Nikolai Verlov
- Petersburg Nuclear Physics Institute named by B.P. Konstantinov of National Research Center «Kurchatov Institute», Gatchina, Russia
- National Research Center “Kurchatov Institute”, Moscow, Russia
| | - Irina Miliukhina
- Petersburg Nuclear Physics Institute named by B.P. Konstantinov of National Research Center «Kurchatov Institute», Gatchina, Russia
- Pavlov First Saint Petersburg State Medical University, St. Petersburg, Russia
- Institute of Experimental Medicine, St. Petersburg, Russia
| | - Anastasia Kudrevatykh
- Pavlov First Saint Petersburg State Medical University, St. Petersburg, Russia
- Institute of Experimental Medicine, St. Petersburg, Russia
| | - Gaspar Gavrilov
- S.M. Kirov Saint-Petersburg Military Medical Academy, St. Petersburg, Russia
| | - Yulia Zabrodskaya
- Polenov Neurosurgical Institute–Branch of National Almazov Medical Research Centre, St. Petersburg, Russia
| | - Sofya Pchelina
- Petersburg Nuclear Physics Institute named by B.P. Konstantinov of National Research Center «Kurchatov Institute», Gatchina, Russia
- Pavlov First Saint Petersburg State Medical University, St. Petersburg, Russia
- National Research Center “Kurchatov Institute”, Moscow, Russia
- Institute of Experimental Medicine, St. Petersburg, Russia
| | - Andrey Konevega
- Petersburg Nuclear Physics Institute named by B.P. Konstantinov of National Research Center «Kurchatov Institute», Gatchina, Russia
- National Research Center “Kurchatov Institute”, Moscow, Russia
- Peter the Great St. Petersburg Polytechnic University, St. Petersburg, Russia
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7
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Shchelkonogov VA, Alyaseva SO, Lotosh NY, Baranova OA, Chekanov AV, Solov'eva EY, Kamyshinskii RA, Vasilov RG, Shastina NS, Korepanova EA, Anosov AA, Selishcheva AA. Lipoic acid nanoforms based on phosphatidylcholine: production and characteristics. EUROPEAN BIOPHYSICS JOURNAL: EBJ 2019; 49:95-103. [PMID: 31865397 DOI: 10.1007/s00249-019-01415-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 10/16/2019] [Accepted: 12/11/2019] [Indexed: 11/30/2022]
Abstract
We describe the dynamics of lipoic acid (LA) alone, incorporated in liposomes and as a part of nanoemulsions. Mass spectrometry shows that LA in water forms aggregates of two or three molecules in the form of a negatively charged ion and a neutral molecule. Phosphatidylcholine (PC)-based nanoforms of LA as liposomes and nanoemulsions with a particle size equal to 145 nm are characterized by a high degree of incorporation of LA into the nanoparticles and long-term stability during storage at room temperature. Dynamic light scattering (DLS) gives the polydispersity index of the nanoforms (> 0.3), characterizing the homogeneity of the obtained nanodispersions. We found that such emulsions can significantly (5 ×) increase the concentration of LA in the aqueous phase (5-7 mg/mL) when compared with an aqueous solution of LA (1 mg/mL) and by 40% when compared with PC liposomes (4 mg/mL). Moreover, the inclusion of LA in liposomes and nanoemulsions from PC did not change the neutral ζ-potential characteristic of PC nanoforms. CryoTEM established that the structural organization of the liposomes practically did not differ from nanoemulsions and both nanoforms contained both multilayer and single-layer vesicles. When studying the release kinetics of LA from phosphatidylcholine nanoforms, we found that at 22 h, 45-55% of LA was released from nanoparticles, but that at the initial stage of the process LA was slowly released from the nanoemulsions and rapidly from the liposomes. Conductance measurements indicate that LA delivered in all the three forms increase membrane permeability, though this result is most marked with the LA in PC liposomes.
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Affiliation(s)
- V A Shchelkonogov
- MIREA-Russian Technological University, Moscow, 119571, Russia.,Pirogov Russian National Research Medical University, Russian Ministry of Public Health, Moscow, 117997, Russia
| | - S O Alyaseva
- MIREA-Russian Technological University, Moscow, 119571, Russia
| | - N Yu Lotosh
- National Research Center Kurchatov Institute, Moscow, 123182, Russia
| | - O A Baranova
- Pirogov Russian National Research Medical University, Russian Ministry of Public Health, Moscow, 117997, Russia
| | - A V Chekanov
- Pirogov Russian National Research Medical University, Russian Ministry of Public Health, Moscow, 117997, Russia.
| | - E Yu Solov'eva
- Pirogov Russian National Research Medical University, Russian Ministry of Public Health, Moscow, 117997, Russia
| | - R A Kamyshinskii
- National Research Center Kurchatov Institute, Moscow, 123182, Russia
| | - R G Vasilov
- National Research Center Kurchatov Institute, Moscow, 123182, Russia
| | - N S Shastina
- MIREA-Russian Technological University, Moscow, 119571, Russia
| | - E A Korepanova
- Pirogov Russian National Research Medical University, Russian Ministry of Public Health, Moscow, 117997, Russia.,Sechenov First Moscow State Medical University (Sechenov University), Moscow, 119991, Russia
| | - A A Anosov
- Sechenov First Moscow State Medical University (Sechenov University), Moscow, 119991, Russia
| | - A A Selishcheva
- National Research Center Kurchatov Institute, Moscow, 123182, Russia.,Department of Biology, Lomonosov Moscow State University, Moscow, 119234, Russia.,Pirogov Russian National Research Medical University, Russian Ministry of Public Health, Moscow, 117997, Russia
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8
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Plasma exosomes stimulate breast cancer metastasis through surface interactions and activation of FAK signaling. Breast Cancer Res Treat 2018; 174:129-141. [PMID: 30484103 DOI: 10.1007/s10549-018-5043-0] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Accepted: 11/08/2018] [Indexed: 12/13/2022]
Abstract
PURPOSE The interaction between malignant cells and surrounding healthy tissues is a critical factor in the metastatic progression of breast cancer (BC). Extracellular vesicles, especially exosomes, are known to be involved in inter-cellular communication during cancer progression. In the study presented herein, we aimed to evaluate the role of circulating plasma exosomes in the metastatic dissemination of BC and to investigate the underlying molecular mechanisms of this phenomenon. METHODS Exosomes isolated from plasma of healthy female donors were applied in various concentrations into the medium of MDA-MB-231 and MCF-7 cell lines. Motility and invasive properties of BC cells were examined by random migration and Transwell invasion assays, and the effect of plasma exosomes on the metastatic dissemination of BC cells was demonstrated in an in vivo zebrafish model. To reveal the molecular mechanism of interaction between plasma exosomes and BC cells, a comparison between un-treated and enzymatically modified exosomes was performed, followed by mass spectrometry, gene ontology, and pathway analysis. RESULTS Plasma exosomes stimulated the adhesive properties, two-dimensional random migration, and transwell invasion of BC cells in vitro as well as their in vivo metastatic dissemination in a dose-dependent manner. This stimulatory effect was mediated by interactions of surface exosome proteins with BC cells and consequent activation of focal adhesion kinase (FAK) signaling in the tumor cells. CONCLUSIONS Plasma exosomes have a potency to stimulate the metastasis-promoting properties of BC cells. This pro-metastatic property of normal plasma exosomes may have impact on the course of the disease and on its prognosis.
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Shtam T, Naryzhny S, Kopylov A, Petrenko E, Samsonov R, Kamyshinsky R, Zabrodskaya Y, Nikitin D, Sorokin M, Buzdin A, Malek A. Functional Properties of Circulating Exosomes Mediated by Surface-Attached Plasma Proteins. J Hematol 2018; 7:149-153. [PMID: 32300430 PMCID: PMC7155850 DOI: 10.14740/jh412w] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Accepted: 10/08/2018] [Indexed: 12/16/2022] Open
Abstract
Background Exosomes and other types of extracellular vesicles present an important component of circulating plasma. Exosomes released by endothelial and blood cells account for majority of plasma exosomal population; exosomes secreted by other cells might cross tissue-plasma barrier and reach circulating plasma as well. Definitely, exosomes of different cellular origins are different by content and function. However, exosomal surface membrane interacts with plasma components. This interaction may alter composition of exosomal surface and hence, provide these vesicles with new functional properties. This study was aimed to estimate composition and possible functional role of proteins attached on the surface of plasma exosomes. Methods Here, extracellular vesicles from human plasma were isolated by ultracentrifugation and treated by trypsin. Trypsinized and native exosomes were analyzed by nanoparticle tracking analysis, Western blotting and quantitative high-resolution mass spectrometry. Results Surface-attached proteins were removed from exosomes isolated from plasma of healthy donors by incubation with serine protease (trypsin). Treatment did not impact exosomes integrity while slightly reduced hydrodynamic radius. Mass spectrometry revealed 259 exosomal proteins; among them 79 proteins were completely removed and more than half of the proteins were partially removed by trypsinization. Gene ontology functional annotation revealed mostly extracellular locations of proteins cleaved from a surface of the plasma exosomes. Moreover, proteins cleaved from the exosome surface are supposed to be implicated into integrin-linked kinase (ILK), focal adhesion kinase (FAK) and other pathways connecting cell surface with intracellular signaling cascades. Conclusion Taken together, our results demonstrate that a surface of circulating exosomes is decorated by plasma proteins, and these proteins can mask tissue-specific characteristic of the exosomal surface membrane and provide exosomes with new and uniform properties.
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Affiliation(s)
- Tatiana Shtam
- N.N.Petrov National Medical Research Center of Oncology, 197758, Leningradskaya 68, St.-Petersburg, Russia.,Ltd Oncosystem, 143026, Lugovaya 4, Skolkovo Innovation Center, Moscow, Russia.,Petersburg Nuclear Physics Institute named by B.P. Konstantinov of National Research Centre «Kurchatov Institute», 188300, Orlova roscha 1, Gatchina, Russia
| | - Stanislav Naryzhny
- Petersburg Nuclear Physics Institute named by B.P. Konstantinov of National Research Centre «Kurchatov Institute», 188300, Orlova roscha 1, Gatchina, Russia.,Orekhovich Institute of Biomedical Chemistry of Russian Academy of Medical Sciences, 119121, Pogodinskaya 10, Moscow, Russia
| | - Arthur Kopylov
- Orekhovich Institute of Biomedical Chemistry of Russian Academy of Medical Sciences, 119121, Pogodinskaya 10, Moscow, Russia
| | - Elena Petrenko
- Orekhovich Institute of Biomedical Chemistry of Russian Academy of Medical Sciences, 119121, Pogodinskaya 10, Moscow, Russia
| | - Roman Samsonov
- N.N.Petrov National Medical Research Center of Oncology, 197758, Leningradskaya 68, St.-Petersburg, Russia.,Ltd Oncosystem, 143026, Lugovaya 4, Skolkovo Innovation Center, Moscow, Russia
| | - Roman Kamyshinsky
- National Research Center "Kurchatov Institute", 123098, Academician Kurchatov Square 1, Moscow, Russia
| | - Yana Zabrodskaya
- Petersburg Nuclear Physics Institute named by B.P. Konstantinov of National Research Centre «Kurchatov Institute», 188300, Orlova roscha 1, Gatchina, Russia
| | - Daniil Nikitin
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991, 32, Vavilova Str., Moscow, Russia
| | - Maxim Sorokin
- National Research Center "Kurchatov Institute", 123098, Academician Kurchatov Square 1, Moscow, Russia.,Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, 117997, 16/10 Miklukho-Maklaya Str., Moscow, Russia.,OmicsWay Corp., 91789, 340 S Lemon Ave, Walnut, CA, USA
| | - Anton Buzdin
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991, 32, Vavilova Str., Moscow, Russia.,Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, 117997, 16/10 Miklukho-Maklaya Str., Moscow, Russia.,OmicsWay Corp., 91789, 340 S Lemon Ave, Walnut, CA, USA.,I.M. Sechenov First Moscow State Medical University (Sechenov University), 119991, 8-2 Trubetskaya St., Moscow, Russia
| | - Anastasia Malek
- N.N.Petrov National Medical Research Center of Oncology, 197758, Leningradskaya 68, St.-Petersburg, Russia.,Ltd Oncosystem, 143026, Lugovaya 4, Skolkovo Innovation Center, Moscow, Russia
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