Imaging of surface microdomains on individual extracellular vesicles in 3‐D

Autor: Ryan P. McNamara, Yijun Zhou, Anthony B. Eason, Justin T. Landis, Meredith G. Chambers, Smaranda Willcox, Tiffany A. Peterson, Blake Schouest, Nicholas J. Maness, Andrew G. MacLean, Lindsey M. Costantini, Jack D. Griffith, Dirk Peter Dittmer
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Journal of Extracellular Vesicles, Vol 11, Iss 3, Pp n/a-n/a (2022)
Druh dokumentu: article
ISSN: 2001-3078
DOI: 10.1002/jev2.12191
Popis: Abstract Extracellular vesicles (EVs) are secreted from all cell types and are intimately involved in tissue homeostasis. They are being explored as vaccine and gene therapy platforms, as well as potential biomarkers. As their size is below the diffraction limit of light microscopy, direct visualizations have been daunting and single‐particle studies under physiological conditions have been hampered. Here, direct stochastic optical reconstruction microscopy (dSTORM) was employed to visualize EVs in three‐dimensions and to localize molecule clusters such as the tetraspanins CD81 and CD9 on the surface of individual EVs. These studies demonstrate the existence of membrane microdomains on EVs. These were confirmed by Cryo‐EM. Individual particle visualization provided insights into the heterogeneity, structure, and complexity of EVs not previously appreciated
Databáze: Directory of Open Access Journals
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