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Extracellular vesicles and their cells of origin: Open issues in autoimmune diseases

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FRONTIERS IN IMMUNOLOGY
卷 14, 期 -, 页码 -

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FRONTIERS MEDIA SA
DOI: 10.3389/fimmu.2023.1090416

关键词

autoimmune diseases (AIDs); immunological tolerance and regulation; cellular therapy; extracellular vesicles (EVs); mesenchymal stem; stromal cells (MSCs)

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Conventional immune suppressive therapies for autoimmune diseases have limitations and complications. Tolerogenic therapeutic strategies based on stem cells, immune cells, and their extracellular vesicles (EVs) are promising for managing these diseases. Mesenchymal stem/stromal cells (MSCs), dendritic cells, and regulatory T cells (Tregs) are the main cell types used, with MSCs playing a more beneficial role. EV-based therapies are gaining attention as cell-free therapeutic paradigms and have unique properties as smart immunomodulators. This review discusses the advantages and disadvantages of cell-based and EV-based methods and the future outlook of EVs in autoimmune disease treatment.
The conventional therapeutic approaches to treat autoimmune diseases through suppressing the immune system, such as steroidal and non-steroidal anti-inflammatory drugs, are not adequately practical. Moreover, these regimens are associated with considerable complications. Designing tolerogenic therapeutic strategies based on stem cells, immune cells, and their extracellular vesicles (EVs) seems to open a promising path to managing autoimmune diseases' vast burden. Mesenchymal stem/stromal cells (MSCs), dendritic cells, and regulatory T cells (Tregs) are the main cell types applied to restore a tolerogenic immune status; MSCs play a more beneficial role due to their amenable properties and extensive cross-talks with different immune cells. With existing concerns about the employment of cells, new cell-free therapeutic paradigms, such as EV-based therapies, are gaining attention in this field. Additionally, EVs' unique properties have made them to be known as smart immunomodulators and are considered as a potential substitute for cell therapy. This review provides an overview of the advantages and disadvantages of cell-based and EV-based methods for treating autoimmune diseases. The study also presents an outlook on the future of EVs to be implemented in clinics for autoimmune patients.

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