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Updated: Dec 1, 2025

Optimizing Extracellular Vesicle Delivery Using a Core-Sheath 3D-Bioprinted Scaffold for Chronic Wound Management
Published on: February 28, 2025
Extracellular vesicle-based therapeutics for the regeneration of chronic wounds: current knowledge and future
Peng Lou1, Shuyun Liu1, Xuewen Xu2
1Key Laboratory of Transplant Engineering and Immunology, Frontiers Science Center for Disease-related Molecular Network, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China.
Abstract:
Chronic wounds are still an intractable medical problem for both clinicians and researchers and cause a substantial social and medical burden. Current clinical approaches can only manage wounds but have limited capacity to promote the regeneration of chronic wounds. As a type of natural nanovesicle, extracellular vesicles (EVs) from multiple cell types (e.g., stem cells, immune cells, and skin cells) have been shown to participate in all stages of skin wound healing including inflammation, proliferation, and remodeling, and display beneficial roles in promoting wound repair. Moreover, EVs can be further re-engineered with genetic/chemical or scaffold material-based strategies for enhanced skin regeneration. In this review, we provide an overview of EV biology and discuss the current findings regarding the roles of EVs in chronic wound healing, particularly in immune regulation, cell proliferation and migration, angiogenesis, and extracellular matrix remodeling, as well as the therapeutic effects of EVs on chronic wounds by genetic modification, in combination with functionalized biomaterials, and as drug carriers. We also discuss the challenges and perspectives of translating EV-based therapies into clinical wound care in the future.
Insights
Extracellular vesicles (EVs) show promise for chronic wound healing by aiding regeneration. Further research into EV-based therapies could revolutionize wound care.
Area of Science:
- Regenerative Medicine
- Biotechnology
- Wound Healing Research
Background:
- Chronic wounds present a significant clinical challenge with limited regenerative capacity in current treatments.
- Extracellular vesicles (EVs), natural nanovesicles from various cells, are crucial in all phases of skin wound repair.
- EVs offer therapeutic potential for enhancing skin regeneration.
Purpose of the Study:
- To review the biological roles of EVs in chronic wound healing.
- To discuss current findings on EV applications in immune regulation, cell proliferation, angiogenesis, and extracellular matrix remodeling.
- To explore therapeutic strategies involving EVs for chronic wound treatment.
Main Methods:
- Review of existing scientific literature on extracellular vesicle biology and function in wound healing.
- Analysis of studies investigating EV roles in inflammation, proliferation, and remodeling stages of wound repair.
- Examination of therapeutic approaches utilizing genetically modified EVs, biomaterial combinations, and drug delivery systems.
Main Results:
- EVs actively participate in immune modulation, cell migration, and angiogenesis during wound healing.
- EVs promote extracellular matrix remodeling, essential for tissue regeneration.
- Engineered EVs and EV-combined biomaterials demonstrate enhanced therapeutic effects on chronic wounds.
Conclusions:
- Extracellular vesicles hold significant therapeutic potential for promoting chronic wound regeneration.
- EV-based strategies, including genetic modification and biomaterial integration, offer promising avenues for advanced wound care.
- Further investigation is needed to overcome challenges and translate EV therapies into clinical practice for chronic wound management.
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