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Extracellular vesicles as advanced therapeutics for the resolution of organ fibrosis: Current progress and future
Ke Lv1, Yizhuo Wang1, Peng Lou1
1National Health Commission (NHC) Key Laboratory of Transplant Engineering and Immunology, Regenerative Medicine Research Center, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, China.
Abstract:
Organ fibrosis is a serious health challenge worldwide, and its global incidence and medical burden are increasing dramatically each year. Fibrosis can occur in nearly all major organs and ultimately lead to organ dysfunction. However, current clinical treatments cannot slow or reverse the progression of fibrosis to end-stage organ failure, and thus advanced anti-fibrotic therapeutics are urgently needed. As a type of naturally derived nanovesicle, native extracellular vesicles (EVs) from multiple cell types (e.g., stem cells, immune cells, and tissue cells) have been shown to alleviate organ fibrosis in many preclinical models through multiple effective mechanisms, such as anti-inflammation, pro-angiogenesis, inactivation of myofibroblasts, and fibrinolysis of ECM components. Moreover, the therapeutic potency of native EVs can be further enhanced by multiple engineering strategies, such as genetic modifications, preconditionings, therapeutic reagent-loadings, and combination with functional biomaterials. In this review, we briefly introduce the pathology and current clinical treatments of organ fibrosis, discuss EV biology and production strategies, and particularly focus on important studies using native or engineered EVs as interventions to attenuate tissue fibrosis. This review provides insights into the development and translation of EV-based nanotherapies into clinical applications in the future.
Insights
Extracellular vesicles (EVs) show promise in treating organ fibrosis by reducing inflammation and promoting tissue repair. Engineering EVs can further enhance their therapeutic potential for fibrotic diseases.
Area of Science:
- Biomedical Science
- Regenerative Medicine
- Nanotechnology
Background:
- Organ fibrosis is a progressive condition affecting multiple organs, leading to dysfunction and failure.
- Current treatments are limited in their ability to halt or reverse fibrosis.
- There is a critical need for novel anti-fibrotic therapeutics.
Purpose of the Study:
- To review the potential of extracellular vesicles (EVs) as a therapeutic strategy for organ fibrosis.
- To discuss the mechanisms by which native and engineered EVs attenuate fibrosis.
- To explore the future development of EV-based nanotherapies for clinical application.
Main Methods:
- Review of preclinical studies on native and engineered EVs for organ fibrosis.
- Analysis of EV biology, production, and therapeutic mechanisms.
- Discussion of engineering strategies to enhance EV potency.
Main Results:
- Native EVs from various cell types demonstrate anti-fibrotic effects via anti-inflammation, pro-angiogenesis, myofibroblast inactivation, and ECM remodeling.
- Engineering strategies like genetic modification and reagent loading significantly boost EV therapeutic efficacy.
- EVs offer a versatile platform for developing advanced anti-fibrotic interventions.
Conclusions:
- Extracellular vesicles represent a promising cell-free therapeutic approach for organ fibrosis.
- EV-based nanotherapies hold potential for clinical translation in treating fibrotic diseases.
- Further research into EV engineering and delivery is crucial for optimizing anti-fibrotic treatments.
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