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Antibody-displaying extracellular vesicles for targeted cancer therapy
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Journal Article
Antibody-displaying extracellular vesicles for targeted cancer therapy
2024
Overview
Extracellular vesicles (EVs) function as natural delivery vectors and mediators of biological signals across tissues. Here, by leveraging these functionalities, we show that EVs decorated with an antibody-binding moiety specific for the fragment crystallizable (Fc) domain can be used as a modular delivery system for targeted cancer therapy. The Fc-EVs can be decorated with different types of immunoglobulin G antibody and thus be targeted to virtually any tissue of interest. Following optimization of the engineered EVs by screening Fc-binding and EV-sorting moieties, we show the targeting of EVs to cancer cells displaying the human epidermal receptor 2 or the programmed-death ligand 1, as well as lower tumour burden and extended survival of mice with subcutaneous melanoma tumours when systemically injected with EVs displaying an antibody for the programmed-death ligand 1 and loaded with the chemotherapeutic doxorubicin. EVs with Fc-binding domains may be adapted to display other Fc-fused proteins, bispecific antibodies and antibody–drug conjugates.
Extracellular vesicles decorated with an antibody-binding moiety specific for the fragment crystallizable domain can be used as a modular delivery system for targeted cancer therapy.
Publisher
Nature Publishing Group UK,Nature Publishing Group
Subject
/ Animals
/ Binding
/ Biomedical and Life Sciences
/ Biomedical Engineering/Biotechnology
/ Cancer
/ Doxorubicin - therapeutic use
/ Drug Delivery Systems - methods
/ Extracellular Vesicles - metabolism
/ Female
/ Humans
/ Immunoglobulin Fc Fragments - genetics
/ Immunoglobulin Fc Fragments - metabolism
/ Immunoglobulin G - immunology
/ Immunoglobulin G - metabolism
/ Ligands
/ Melanoma
/ Mice
/ Therapy
/ Tumors
/ Vesicles
