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Albanese, M. ; Chen, Y.-F. A. ; Hüls, C. ; Gärtner, K. ; Tagawa, T. ; Mejias-Perez, E.* ; Keppler, O.T.* ; Göbel,C. ; Zeidler, R. ; Shein, M.* ; Schütz, A.K. ; Hammerschmidt, W.

MicroRNAs are minor constituents of extracellular vesicles that are rarely delivered to target cells.

PLoS Genet. 17:e1009951 (2021)
Publ. Version/Full Text Research data DOI PMC
Open Access Gold
Creative Commons Lizenzvertrag
Mammalian cells release different types of vesicles, collectively termed extracellular vesicles (EVs). EVs contain cellular microRNAs (miRNAs) with an apparent potential to deliver their miRNA cargo to recipient cells to affect the stability of individual mRNAs and the cells' transcriptome. The extent to which miRNAs are exported via the EV route and whether they contribute to cell-cell communication are controversial. To address these issues, we defined multiple properties of EVs and analyzed their capacity to deliver packaged miRNAs into target cells to exert biological functions. We applied well-defined approaches to produce and characterize purified EVs with or without specific viral miRNAs. We found that only a small fraction of EVs carried miRNAs. EVs readily bound to different target cell types, but EVs did not fuse detectably with cellular membranes to deliver their cargo. We engineered EVs to be fusogenic and document their capacity to deliver functional messenger RNAs. Engineered fusogenic EVs, however, did not detectably alter the functionality of cells exposed to miRNA-carrying EVs. These results suggest that EV-borne miRNAs do not act as effectors of cell-to-cell communication.
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Publication type Article: Journal article
Document type Scientific Article
Corresponding Author
Keywords Epstein-barr-virus; Circulating Micrornas; Infected Cells; Viral Mirnas; Exosomes; Rna; Protein; Microvesicles; Communication; Biogenesis
ISSN (print) / ISBN 1553-7390
e-ISSN 1553-7404
Journal PLoS Genetics
Quellenangaben Volume: 17, Issue: 12, Pages: , Article Number: e1009951 Supplement: ,
Publisher Public Library of Science (PLoS)
Publishing Place 1160 Battery Street, Ste 100, San Francisco, Ca 94111 Usa
Non-patent literature Publications
Reviewing status Peer reviewed
Institute(s) Research Unit Gene Vector (AGV)
Institute of Structural Biology (STB)
Grants National Cancer Institute
Deutsche Krebshilfe
Deutsche Forschungsgemeinschaft