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Título: | Superfluorinated extracellular vesicles for in vivo imaging by 19F-MRI |
Autor: | Sancho‐Albero, María CSIC ORCID; Ayaz, Nazeeha; Sebastián, Víctor CSIC ORCID; Chirizzi, Cristina; Encinas-Giménez, Miguel CSIC ORCID CVN; Neri, Giulia; Chaabane, Linda; Luján, Lluís; Martín-Duque, Pilar; Metrangolo, Pierangelo; Santamaría, Jesús CSIC; Baldelli Bombelli, Francesca | Palabras clave: | Bioimaging PERFECTA 19F-MRI Extracellular vesicles Fluorine |
Fecha de publicación: | 2023 | Editor: | American Chemical Society | Citación: | ACS Applied Materials and Interfaces 15(7): 8974-8985 (2023) | Resumen: | Extracellular vesicles (EVs) play a crucial role in cell-to-cell communication and have great potential as efficient delivery vectors. However, a better understanding of EV in vivo behavior is hampered by the limitations of current imaging tools. In addition, chemical labels present the risk of altering the EV membrane features and, thus, in vivo behavior. 19F-MRI is a safe bioimaging technique providing selective images of exogenous probes. Here, we present the first example of fluorinated EVs containing PERFECTA, a branched molecule with 36 magnetically equivalent 19F atoms. A PERFECTA emulsion is given to the cells, and PERFECTA-containing EVs are naturally produced. PERFECTA-EVs maintain the physicochemical features, morphology, and biological fingerprint as native EVs but exhibit an intense 19F-NMR signal and excellent 19F relaxation times. In vivo 19F-MRI and tumor-targeting capabilities of stem cell-derived PERFECTA-EVs are also proved. We propose PERFECTA-EVs as promising biohybrids for imaging biodistribution and delivery of EVs throughout the body. | Versión del editor: | https://doi.org/10.1021/acsami.2c20566 | URI: | http://hdl.handle.net/10261/337762 | DOI: | 10.1021/acsami.2c20566 | E-ISSN: | 1944-8252 |
Aparece en las colecciones: | (INMA) Artículos |
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superfluorinated.pdf | 9,66 MB | Adobe PDF | Visualizar/Abrir |
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