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Exosomes

Exosomes are small membrane vesicles of endocytic origin secreted by most cell types in vitro. Cells continuously secrete a large number of microvesicles, exosomes and small molecules into the extracellular space. Exosomes have been shown to contain mRNA and miRNA and they are able to mediate communication between cells, by transport of RNA and proteins which can be functionalized in the recipient cell. The ability to transport bioactive cargoes, gives exosomes innate therapeutic potential as a natural drug carrier. Efficient techniques for loading drugs into exosomes to utilize the natural carrier capabilities of these vesicles remains to be elucidated.

Applications of Exosomes

The presence exosomes in blood, saliva, and urine paves the way for the possible application of exosomes as a diagnostic marker for diseases. Many diseases are difficult to detect by the methods and equipment available today and there is a growing demand for development of new non‐invasive methods to detect diseases in early stages. The use of exosomes as markers of disease is being investigated to cement their potential as a non-invasive diagnostic tool for early detection of many diseases, in particular cancers. This, however, relies on thorough characterisation of exosomes in both healthy and diseased states

An important factor to understanding the roles of exosomes is knowledge of their biodistribution. Currently, the number of publications describing the biodistribution of exosomes is limited. The main reason being the lack of a robust fluorescent label that can be visualised in vivo. Mapping the specific cell type derived exosomes can increase our knowledge on the roles of exosomes in the organism, as well as help to identify natural targeting systems.

Isolation, Characterisation and Fluorescent Labelling

The most common isolation protocol uses a differential centrifugation to fractionate cells, microvesicles, and exosomes, which are pelleted by ultracentrifugation. After vesicles are secreted from cells into the extracellular environment, it difficult to separate the different subpopulations of vesicles to obtain a pure sample. We have developed methods to optimise isolation and thorough characterisation procedures to obtain pure and well-characterised exosomes. Furthermore, we have developed a simple method for labelling of exosomes with a robust fluorescent label that can be visualised in vivo, allowing investigation of the biodistribution of different cell derived exosomes.

Collaborators:

Department of Clinical Medicine, Aarhus University Hospital, Denmark

Dan Peer, Department of Cell Research & Immunology, Tel Aviv University, Israel

Moein Moghimi, school of Medicine, Pharmacy and Health, Durham University, UK

Recent Publications

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Krejsler, JB 2019, How a European 'Fear of Falling Behind' Discourse Co-produces Global Standards: exploring the Inbound and Outbound Performativity of the Transnational Turn in European Education Policy. in C Ydesen (ed.), The OECD's Historical Rise in Education: the Formation of a Global Governing Complex., 10.1007/978-3-030-33799-5_12, Palgrave Macmillan, Cham, Global Histories of Education, pp. 245-267.
Anderson, RH, Niederer, PF, Sanchez-Quintana, D, Stephenson, RS & Agger, P 2019, 'How are the cardiomyocytes aggregated together within the walls of the left ventricular cone?', Journal of Anatomy, vol. 235, no. 4, pp. 697-705. https://doi.org/10.1111/joa.13027
Wamberg, J 2019, How art became posthuman: towards an extended historiography. in M Chybowska-Butler, M Lewoc & M Renberg (eds), Living in the present future. Bornholms Kunstmuseum and Muzeum Narodowe a Szczecinie, Gudhjem, pp. 44-54.
Andersen, C, Rosenstroem, CA & Ruchayskiy, O 2019, 'How bright was the Big Bang?', American Journal of Physics, vol. 87, no. 5, pp. 395-400. https://doi.org/10.1119/1.5092705
Persson, P, Kallivokas, L, Andersen, LV & T. Peplow, A 2019, How building adjacency affects occupant-perceivable vibrations due to urban sources: A parametric study. in M Papadrakakis & M Fragiadakis (eds), Proceedings of the 7th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering. vol. 3, National Technical University of Athens, pp. 5610-5621, 7th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering, Crete, Greece, 24/06/2019. https://doi.org/10.7712/120119.7331.18833
Wang, QJ 2019, 'How can VR be adapted for immersive dining situations? Two case studies on flavour and aroma perception', Food and Hospitality Multisensory Perspectives Symposium, Lyon, France, 15/11/2019 - 15/11/2019.
Heilmann-Clausen, J, Bruun, HH, Ejrnæs, R, Frøslev, TG, Læssøe, T & Petersen, JH 2019, 'How citizen science boosted primary knowledge on fungal biodiversity in Denmark', Biological Conservation, vol. 237, no. September, pp. 366-372. https://doi.org/10.1016/j.biocon.2019.07.008
Prilop, CN, Weber, KE & Kleinknecht, M 2019, 'How Digital Coaching Environments Contribute to Preservice Teachers' Self-Efficacy and Beliefs About Teaching and Learning', Annual Meeting of the American Educational Research Association (AERA), Toronto, Canada, 11/03/2019.
Prilop, CN, Weber, KE & Kleinknecht, M 2019, 'How digital reflection and feedback environments contribute to pre-service teachers’ beliefs during a teaching practicum', Studies in Educational Evaluation, vol. 62, pp. 158-170.
Sanderson, H, Morales Irato, D, Cerezo, NP, Duel, H, Faria, P & Torres, EF 2019, 'How do climate risks affect corporations and how could they address these risks?', SN Applied Sciences, vol. 1, no. 12, 1720. https://doi.org/10.1007/s42452-019-1725-4
Laursen, R 2019, '"How does school management support teachers working wellbeing when implementing a learning management system"', Paper presented at International Congress for School Effectiveness and Improvement , Stavanger, Norway, 07/01/2019 - 11/01/2019.
Klitgaard, MB & Paster, T 2019 'How Do Governments Respond to Business Demands for Tax Cuts: An analysis of Corporate and Inheritance Tax Reforms in Austria and Sweden' Minda de Gunzburg Center for European Studies - Harvard University, Cambridge, MA.
Sørensen, J & Nielbo, KL 2019, How do humans process ritualized actions? in J Slone & W McCorkle (eds), The Cognitive Science of Religion: A Methodological Introduction to Key Empirical Studies. Bloomsbury Academic.
Haas, R, Imami, D, Miftari, I, Ymerie, P & Grunert, K 2019, 'How do kosovar and albanian consumers perceive food quality and safety in the dairy sector?', Studies in Agricultural Economics, vol. 121, no. 3, pp. 119-126. https://doi.org/10.7896/j.1920
Jeppesen, MM, Mogensen, O, Hansen, DG, Bergholdt, SH & Jensen, PT 2019, 'How Do We Follow Up Patients With Endometrial Cancer?', Current Oncology Reports, vol. 21, 57. https://doi.org/10.1007/s11912-019-0805-3
Orso, R, Creutzberg, KC, Wearick-Silva, LE, Wendt Viola, T, Tractenberg, SG, Benetti, F & Grassi-Oliveira, R 2019, 'How Early Life Stress Impact Maternal Care: A Systematic Review of Rodent Studies', Frontiers in Behavioral Neuroscience, vol. 13, 197. https://doi.org/10.3389/fnbeh.2019.00197
Harris, M, Thulesius, H, Neves, AL, Harker, S, Koskela, T, Petek, D, Hoffman, R, Brekke, M, Buczkowski, K, Buono, N, Costiug, E, Dinant, GJ, Foreva, G, Jakob, E, Marzo, M, Murchie, P, Sawicka-Powierza, J, Schneider, A, Smyrnakis, E, Streit, S, Taylor, G, Vedsted, P, Weltermann, B & Esteva, M 2019, 'How European primary care practitioners think the timeliness of cancer diagnosis can be improved: a thematic analysis', BMJ Open, vol. 9, no. 9, e030169, pp. e030169. https://doi.org/10.1136/bmjopen-2019-030169
Krieger, J 2019, How Fears Changed the Games: Of Terror, Security and Costs. in J Krieger & S Wassong (eds), Dark Sides of Sport. Common Ground Publishing, Champaign, IL, The International Journal of Sport and Society, pp. 57-72.
Bisgaard, M 2019, 'How Getting the Facts Right Can Fuel Partisan-Motivated Reasoning', American Journal of Political Science, vol. 63, no. 4, pp. 824-839. https://doi.org/10.1111/ajps.12432
Hansen, FG 2019, 'How Impressions of Public Employees’ Warmth and Competence Influence Trust in Government', EGPA 2019 , Belfast, United Kingdom, 09/09/2019 - 13/09/2019.
Aggerholm, HK, Asmuß, B, Boivin, G, Buttny, R & Krippendorff, K 2019, How institutional authority and routine exertions of power can be mobilized, negotiated and challenged. in N Bencherki, F Matte & F Cooreen (eds), Authority and Power in Social Interaction: Methods and Analysis. Routledge, New York, pp. 56-76.
Xue, M, Wakamoto, T, Kejlberg, C, Yoshimura, Y, Nielsen, TA, Risør, MW, Sanggaard, KW, Kitahara, R & Mulder, FAA 2019, 'How internal cavities destabilize a protein', Proceedings of the National Academy of Sciences (PNAS), vol. 116, no. 42, pp. 21031-21036. https://doi.org/10.1073/pnas.1911181116
Enevoldsen, P, Permien, FH, Bakhtaoui, I, Krauland, AKV, Jacobson, MZ, Xydis, G, Sovacool, BK, Valentine, SV, Luecht, D & Oxley, G 2019, 'How much wind power potential does Europe have? Examining European wind power potential with an enhanced socio-technical atlas', Energy Policy, vol. 132, pp. 1092-1100. https://doi.org/10.1016/j.enpol.2019.06.064
Hansen, NB, Dindler, C, Halskov, K, Iversen, OS, Bossen, C, Basballe, DA & Schouten, B 2019, How participatory designworks: Mechanisms and effects. in Proceedings of the 31st Australian Conference on Human-Computer-Interaction, OzCHI 2019. Association for Computing Machinery, pp. 30-41, 31st Australian Conference on Human-Computer-Interaction, OzCHI 2019, Perth/Fremantle, Australia, 02/12/2019. https://doi.org/10.1145/3369457.3369460
Hansen, NB, Dindler, C, Halskov, K, Iversen, OS, Bossen, C, Basballe, DA & Schouten, B 2019, How Participatory Design Works: Mechanisms and Effects. in OzCHI: Australian Conference on Human-Computer Interaction Proccedings. AUSTRALIAN CONFERENCE ON HUMAN-COMPUTER-INTERACTION , Fremantle, Western Australia, Australia, 03/12/2019.