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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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Espersen, C, Johansen, ND, Modin, D, Janstrup, KH, Nealon, J, Samson, S, Loiacono, MM, Harris, RC, Andrew, MK, Larsen, CS, Jensen, AMR, Landler, NE, Claggett, BL, Solomon, SD, Landray, MJ, Gislason, GH, Køber, L, Jensen, JUS, Sivapalan, P & Biering-Sørensen, T 2026, 'Relative Effectiveness of High-Dose Versus Standard-Dose Influenza Vaccination Against Hospitalizations and Deaths According to Frailty Score: A Post Hoc Analysis of the DANFLU-1 Randomized Trial', Journal of Infectious Diseases, vol. 233, no. 1, pp. e89-e98. https://doi.org/10.1093/infdis/jiaf420
Bernholm, KF, Johansen, ND, Espersen, C, Modin, D, Hyldekær, KJ, Nealon, J, Samson, S, Loiacono, MM, Harris, RC, Larsen, CS, Jensen, AMR, Landler, NE, Nielsen, ST, Russell, L, Itenov, TS, Claggett, BL, Solomon, SD, Landray, MJ, Gislason, GH, Køber, L, Sivapalan, P, Jensen, JUS & Biering-Sørensen, T 2026, 'Relative effectiveness of high-dose versus standard-dose influenza vaccine against hospitalizations and mortality according to Charlson Comorbidity Index: A post-hoc analysis of the DANFLU-1 randomized trial', European Journal of Clinical Microbiology and Infectious Diseases. https://doi.org/10.1007/s10096-026-05408-5
Hafner, SD, Leca, E, Sambusiti, C, Astals, S, Azam, O, Koch, K, Liu, J, Møller, HB, Nistor, M, Olaya-Rincon, M, Peyrelasse, C, Ward, AJ, Zennaro, B & Monlau, F 2026, 'Reliable biochemical methane potential testing: insights and recommendations from global interlaboratory study', Bioresource Technology, vol. 446. https://doi.org/10.1016/j.biortech.2026.134136
Alhaskir, M, Kutafina, E, Linke, F, Fischer, FP, Schriewer, E, Lauxmann, S, Klett, K, Hofmeister, J, Lutz, F, Burow, L, Cicanic, M, Khosrawikatoli, S, Wolking, S, Mayer, T, Beniczky, S, Kegele, J, Röhrig, R, Koch, H & Weber, Y 2026, 'Reliable detection of focal onset impaired awareness seizures in patients with epilepsy using wearable ECG: Development and validation study', Computer Methods and Programs in Biomedicine, vol. 279, 109295. https://doi.org/10.1016/j.cmpb.2026.109295
Petersen, AK 2026, Religion between Urbanity and Kosmosfication: A Reading of the Ad Diognetum. in J Rüpke & S Rau (eds), Religion an Urbanity. De Gruyter.
Brorson, M 2026, Religion er vantro. in J Brun Mendes Cederfeldt, J Rosenkrands Uldall & A Tagmose Grønkjær (eds), Religion og Idéhistorie. Baggrund.
Radgoudarzi, M 2026, Religious Minorities’ Rights in Shiite Islam: A Shift from Institutional Discrimination to Absolute Equality. in K Barkey & J Laurence (eds), Handbook on Religious Toleration in Comparative Perspective. 1 edn, vol. 1, 11, Springer, Switzerland, pp. 177-195. https://doi.org/10.1007/978-3-031-93898-6_12
Radgoudarzi, M 2026, Religious Minorities-States Relations in Modern Iran from Safavid Era to the Islamic Republic: Policies and Implications. in K Barkey & J Laurence (eds), Handbook on Religious Toleration in Comparative Perspective. 1 edn, vol. 1, 12, Springer, Switzerland, pp. 517-535. https://doi.org/10.1007/978-3-031-93898-6_28
Refskou, AS 2026, Remembering Lady Macbeth: Revision and Gender in The Memoirs of Johanne Luise Heiberg. in P Prescott & JF Cerdá (eds), Macbeth in European Culture, 1875-2025. Bloomsbury Academic.
Qiu, J, Su, W, Xin, Q, Feng, S, Wang, X, Wang, S & Manevski, K 2026, Remote sensing of soil moisture in agroecosystems. in Agricultural Applications of Earth Observation. Elsevier, pp. 319-338. https://doi.org/10.1016/B978-0-443-38345-8.00005-3
Laursen, CCW, Lund, KN, Lunn, TH, Hägi-Pedersen, D, Therkelsen, ASN, Steensbæk, MT, Faugstad, BI, Anjum, S, Yilmaz, M, Pedersen, NA, Kappel, A, Graungaard, BK, Hollænder, PB, Runge, C, Lange, KHW, Varnum, C, Brorson, S, Lindberg-Larsen, M, Overgaard, S, Olsen, MH, Jakobsen, JC & Mathiesen, O 2026, 'Renal Adverse Events Associated With Ibuprofen Treatment After Hip and Knee Arthroplasties: A Protocol for the Preplanned Substudy of the PERISAFE Trial', Acta Anaesthesiologica Scandinavica, vol. 70, no. 4, e70218. https://doi.org/10.1111/aas.70218
Aramendía-Vidaurreta, V, Garcia-Ruiz, L, Aznárez-Sanado, M, Aastrup, M, Bozzetto, M, Brambilla, P, Echeverria-Chasco, R, Hansen, ESS, Micu, L, Mora-Gutierrez, JM, Pasini, S, Raj, A, Ringgaard, S, Strittmatter, A, Villa, G, Urdea, I, Bastarrika, G, Buus, NH, Garcia-Fernandez, N, Selby, NM, Trillini, M, Francis, ST, Itu, LM, Laustsen, C, Zöllner, FG, Caroli, A & Fernández-Seara, MA 2026, 'Renal Clinical Study Participants Support Data Sharing and Use of Artificial Intelligence', Kidney International Reports, vol. 11, no. 5, 106354. https://doi.org/10.1016/j.ekir.2026.106354
Smedegaard Ernst Bengtsen, S, Barnett, R, Carney, S, Feldt, JE, Manathunga, C, Sarauw, LL & Sonesson, A 2026, 'Renewal or despair? Critiquing the possibility of the university ', Imagining Collective Agency in Higher Education: Higher Education Futures for All, Aarhus, Denmark, 02/06/2026 - 04/06/2026.
Kristensen, SK, Holm, MB, Maillard, L, Råmunddal, T, Guiducci, V, Stähli, BE, Žiubrytė, G, Westra, J, Van Belle, E, Erriquez, A, Koltowski, L, Mogensen, LJH, Escaned, J, Christiansen, EH, Holm, NR, Andersen, BK & The Favor Iii Europe Study Team 2026, 'Repeatability and quality assessment of QFR in the FAVOR III Europe trial: the REPEAT-QFR study', EuroIntervention, vol. 22, no. 1, pp. e55-e67. https://doi.org/10.4244/EIJ-D-25-00668
Lund, M, Madsen, C & Roer, H 2026, 'Replik til Orla Vigsøs anmeldelse af Retorikkens aktualitet', Rhetorica Scandinavica, no. 29.
Bonetti, L, Vestberg, T, Jafari, R, Seghezzi, D, Ingvar, M, Kringelbach, ML, Filgueiras, A & Petrovic, P 2026, 'Reply to Fitzgerald et al. Mischaracterizing our findings; the cognitive profile of elite footballers remains robust', Proceedings of the National Academy of Sciences of the United States of America, vol. 123, no. 8, e2521662123. https://doi.org/10.1073/pnas.2521662123
Winther-Lindqvist, DA, Josiasen, S-E, Kolmos, M, Nielsen, AM & Kousholt, D 2026, 'Research Circles on World-care in ECEC: a participatory research approach ', Qualitative Studies.
Gustafsen, C, Vilstrup, J, Kristensen, M, Køster, D, Lende, J, Larsen, C, Simonsen, A, Graversen, A, Olsen, D, Pallesen, LT, Vægter, CB, Kresse, J-C, Schou, M, Weyer, K, Etzerodt, A, Palmfeldt, J, Kaas, M, Qureshi, O, Harrison, N, Cowley, J, Barnes, N, Galland, F, Naquet, P, Mazarakis, SMM, Greve, D, Quattropani, A, Glossop, P, Whitlock, G, Jensen, KT, Nielsen, SF, Madsen, P & Glerup, S 2026, 'Reshaping the progranulin/sortilin interaction for targeted degradation of extracellular proteins', Cell Chemical Biology. https://doi.org/10.1016/j.chembiol.2026.03.002
Nicolaisen, M 2026, 'Resistensforhold i kartoffelsorter i forhold til plantepatogene vira, 2025', No. 2026-0940519, 8 p., Mar 25, 2026. Rådgivningsnotat fra DCA - Nationalt Center for Fødevarer og Jordbrug.