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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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Jensen, B, Wang, T & Moorman, AFM 2019, 'Evolution and Development of the Atrial Septum', Anatomical Record, vol. 302, no. 1, pp. 32-48. https://doi.org/10.1002/ar.23914
Clasen, M & Platts, T 2019, Evolution and slasher films. in D Vanderbeke & B Cooke (eds), Evolution and popular narrative. Brill, pp. 23-42. https://doi.org/10.1163/9789004391161_003
Clasen, M 2019, 'Evolution, Cognition, and Horror: A Précis of Why Horror Seduces (2017)', Journal of Cognitive Historiography, vol. 4, no. 2, pp. 242-256. https://doi.org/10.1558/jch.37083
Skjerning, H 2019, 'Evolution [dobbeltsonet]', M gasin, vol. 19, no. 40 (XL).
Lee, A, Yan, D, Pezzulla, M, P. Holmes, D & M. Reis, P 2019, 'Evolution of critical buckling conditions in imperfect bilayer shells through residual swelling', Soft Matter, vol. 15, no. 30, pp. 6134-6144. https://doi.org/10.1039/C9SM00901A
Köhler-Forsberg, O, Cusin, C & Nierenberg, AA 2019, 'Evolving Issues in the Treatment of Depression', JAMA - Journal of the American Medical Association, vol. 321, no. 24, pp. 2401-2402. https://doi.org/10.1001/jama.2019.4990
Thomsen, DK & Jensen, RAA 2019, 'Examining age differences in life story stability', Autobiographical Memory and the Self, Aarhus, Denmark, 20/06/2018 - 21/06/2018.
Hakkarainen, P, Decorte, T, Sznitman, S, Karjalainen, K, Barratt, MJ, Frank, VA, Lenton, S, Potter, G, Werse, B & Wilkins, C 2019, 'Examining the blurred boundaries between medical and recreational cannabis – results from an international study of small-scale cannabis cultivators', Drugs: Education, Prevention and Policy, vol. 26, no. 3, pp. 250-258. https://doi.org/10.1080/09687637.2017.1411888
Olsen, SF, Halldorsson, TI, Li, M, Strøm, M, Mao, Y, Che, Y, Wang, Y, Duan, F, Olsen, J & Zhou, W 2019, 'Examining the Effect of Fish Oil Supplementation in Chinese Pregnant Women on Gestation Duration and Risk of Preterm Delivery', The Journal of Nutrition, vol. 149, no. 11, pp. 1942-1951. https://doi.org/10.1093/jn/nxz153
Eheliyagoda, D, Wei, F, Shan, G, Albalghiti, E, Zeng, X & Li, J 2019, 'Examining the Temporal Demand and Sustainability of Copper in China', Environmental Science and Technology Library, vol. 53, no. 23, pp. 13812–13821. https://doi.org/10.1021/acs.est.9b03875
Parsons, C 2019, 'Examining treatment engagement in Mindfulness-Based Stress Reduction using smartphone monitoring and wearable technology', 9th World Congress of Behavioural and Cognitive Therapies 2019, Berlin, 17/07/2019 - 20/07/2019.
Lissandrini, M, Mottin, D, Palpanas, T & Velegrakis, Y 2019, Example-based Search: A new frontier for exploratory search. in SIGIR 2019 - Proceedings of the 42nd International ACM SIGIR Conference on Research and Development in Information Retrieval. Association for Computing Machinery, pp. 1411-1412, 42nd International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2019, Paris, France, 21/07/2019. https://doi.org/10.1145/3331184.3331387
Christensen, S 2019, Excellence and envy: the management of PISA success in Singapore. in F Waldow & G Steiner-Khamsi (eds), Understanding PISA's attractiveness: critical analyses in comparative policy studies. Bloomsbury Academic, London, pp. 199-217.
Ash, JL, Egger, M, Treude, T, Kohl, C, Cragg, B, Parkes, RJ, Slomp, CP, Lollar, BS & Young, ED 2019, 'Exchange catalysis during anaerobic methanotrophy revealed by (CH2D2)-C-12 by and (CH3D)-C-13 in methane', Geochemical Perspectives Letters, vol. 10, pp. 26-30. https://doi.org/10.7185/geochemlet.1910
Bliss, K, Padel, S, Cullen, B, Ducottet, C, Mullender, S, Rasmussen, IA & Moeskops, B 2019, 'Exchanging knowledge to improve organic arable farming: an evaluation of knowledge exchange tools with farmer groups across Europe', Organic Agriculture, vol. 9, no. 4, pp. 383-398. https://doi.org/10.1007/s13165-018-0238-6
Roman, H, Tuech, JJ, Huet, E, Bridoux, V, Khalil, H, Hennetier, C, Bubenheim, M & Brinduse, LA 2019, 'Excision versus colorectal resection in deep endometriosis infiltrating the rectum: 5-year follow-up of patients enrolled in a randomized controlled trial', Human Reproduction, vol. 34, no. 12, pp. 2362-2671. https://doi.org/10.1093/humrep/dez217
Jonker, A, MacLean, S, Woju, CW, Rendon Calzada, MG, Yu, W, Molano, G, Hickey, S, Pinares-Patino, CS, McEwan, JC, Janssen, PH, Sandoval, E, Lewis, S & Rowe, S 2019, 'Excreta emissions in progeny of low and high enteric methane yield selection line sheep fed pasture of different qualities', Animal Feed Science and Technology, vol. 257, 114289. https://doi.org/10.1016/j.anifeedsci.2019.114289
Nielsen, CF 2019, 'Exemplarity, Expressivity, Education', Journal of Moral Education, vol. 48, no. 3, pp. 381-392. https://doi.org/10.1080/03057240.2018.1563879
Boschiero, L & Wray, KB 2019, 'Exemplifying Metascience', Metascience, vol. 28, no. 3, pp. 353-354. https://doi.org/10.1007/s11016-019-00472-4
Triebner, K, Accordini, S, Calciano, L, Johannessen, A, Benediktsdóttir, B, Bifulco, E, Demoly, P, Dharmage, SC, Franklin, KA, Garcia-Aymerich, J, Gullón Blanco, JA, Heinrich, J, Holm, M, Jarvis, D, Jõgi, R, Lindberg, E, Martínez-Moratalla, J, Muniozguren Agirre, N, Pin, I, Probst-Hensch, N, Raherison, C, Sánchez-Ramos, JL, Schlünssen, V, Svanes, C, Hustad, S, Leynaert, B & Gómez Real, F 2019, 'Exogenous female sex steroids may reduce lung ageing after menopause: A 20-year follow-up study of a general population sample (ECRHS)', Maturitas, vol. 120, pp. 29-34. https://doi.org/10.1016/j.maturitas.2018.11.007
Flannick, J, Mercader, JM, Fuchsberger, C, Udler, MS, Mahajan, A, Wessel, J, Teslovich, TM, Caulkins, L, Koesterer, R, Barajas-Olmos, F, Blackwell, TW, Boerwinkle, E, Brody, JA, Centeno-Cruz, F, Chen, L, Chen, S, Contreras-Cubas, C, Córdova, E, Correa, A, Cortes, M, DeFronzo, RA, Dolan, L, Drews, KL, Elliott, A, Floyd, JS, Gabriel, S, Garay-Sevilla, ME, García-Ortiz, H, Gross, M, Han, S, Heard-Costa, NL, Jackson, AU, Jørgensen, ME, Kang, HM, Kelsey, M, Kim, BJ, Koistinen, HA, Kuusisto, J, Leader, JB, Linneberg, A, Liu, CT, Liu, J, Lyssenko, V, Manning, AK, Marcketta, A, Malacara-Hernandez, JM, Witte, DR, Grarup, N, Hansen, T, Pedersen, O, Broad Genomics Platform, DiscovEHR Collaboration, CHARGE, LuCamp, ProDiGY, GoT2D, ESP, SIGMA-T2D, T2D-GENES & AMP-T2D-GENES 2019, 'Exome sequencing of 20,791 cases of type 2 diabetes and 24,440 controls', Nature, vol. 570, no. 7759, pp. 71-76. https://doi.org/10.1038/s41586-019-1231-2
Gudbergsson, JM & Johnsen, KB 2019, 'Exosomes and autophagy: rekindling the vesicular waste hypothesis', Journal of Cell Communication and Signaling, vol. 13, no. 4, pp. 443-450. https://doi.org/10.1007/s12079-019-00524-8
Nguanchoo, V, Wangpakapattanawong, P, Balslev, H & Inta, A 2019, 'Exotic plants used by the Hmong in Thailand', Plants, vol. 8, no. 11, 500. https://doi.org/10.3390/plants8110500
McLeod, D, Thogersen, MK, Jessen, NI, Jorgensen, KA, Jamieson, CS, Xue, X-S, Houk, KN, Liu, F & Hoffmann, R 2019, 'Expanding the Frontiers of Higher-Order Cycloadditions', Accounts of Chemical Research, vol. 52, no. 12, pp. 3488-3501. https://doi.org/10.1021/acs.accounts.9b00498
O’Brien, E, M. Cooney, T & Blenker, P 2019, 'Expanding university entrepreneurial ecosystems to under-represented communities', Journal of Entrepreneurship and Public Policy, vol. 8, no. 3, pp. 384-407. https://doi.org/10.1108/JEPP-03-2019-0025