EXOPLEXs: Chimeric Drug Delivery Platform from the Fusion of Cell-Derived Nanovesicles and Liposomes
- PMID: 29172449
- DOI: 10.1021/acs.biomac.7b01176
EXOPLEXs: Chimeric Drug Delivery Platform from the Fusion of Cell-Derived Nanovesicles and Liposomes
Abstract
Cell-derived nanovesicles (CDNs) have been recently investigated as novel drug delivery systems (DDSs), due to the preservation of key features from the cell membrane of their precursor cells, which are responsible for an efficient cellular uptake by target cells. However, CDNs suffer from low drug loading efficiencies as well as challenges in functionalization compared to conventional DDS like liposomes. Here, we describe the first study proposing the fusion of CDNs with liposomes to form EXOPLEXs. We report the preservation of cell membranes from precursor cells similarly to CDNs, as well as high loading efficiencies of more than 65% with doxorubicin hydrochloride, a model chemotherapeutic drug. The doxorubicin-loaded EXOPLEXs (DOX-EXO) also demonstrated a higher in vitro cell killing effect than liposomes, while EXOPLEXs alone did not show any remarkable cytotoxicity. Taken together, these results illustrate the potential of EXOPLEXs as a novel DDS for targeted delivery of chemotherapeutics.
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