4.8 Article

Converting extracellular vesicles into nanomedicine: loading and unloading of cargo

Journal

MATERIALS TODAY NANO
Volume 16, Issue -, Pages -

Publisher

ELSEVIER
DOI: 10.1016/j.mtnano.2021.100148

Keywords

EVs; Nanocarriers; Cargo loading; Biomedical engineering; Drug delivery

Funding

  1. Dutch Technology Foundation TTW (Netherlands Organization for Scientific Research NWO)
  2. Erasmus Mundus India-EU mobility consortium
  3. Ministry of Economic Affairs

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Extracellular vesicles (EVs) serve as biological delivery vehicles for therapeutic cargo, with key technologies including loading, surface functionalization, and cargo release methods. Challenges for clinical translation of EV-mediated drug delivery are also discussed.
Extracellular vesicles (EVs) are membranous containers that are secreted by multiple cell types and actively transport biomolecules such as lipids, proteins, and nucleic acids to distant cells, thereby inflicting phenotypic changes. In addition to their use in disease diagnosis, EVs have emerged as powerful tools for disease treatment. Specifically, the natural transport capacity of EVs can be exploited for drug delivery purposes. In this review, we focus on the key technologies that are used to 'design' EVs for their use as biological delivery vehicles. We provide a comprehensive overview of (i) methods for the loading of EVs with therapeutic cargo, (ii) methods for EV surface functionalization to direct EVs to target cells, and (iii) methods to stimulate cargo release from EVs. Finally, we discuss the remaining and up-coming challenges for the clinical translation of EV-mediated drug delivery. (c) 2021 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).

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