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Extracellular Vesicle-Integrated Biomaterials in Bone Tissue Engineering Applications: Current Progress and Future Perspectives

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Title: Extracellular Vesicle-Integrated Biomaterials in Bone Tissue Engineering Applications: Current Progress and Future Perspectives
Authors: Huang Y, Xie H
Source: International Journal of Nanomedicine, Vol 20, Iss Issue 1, Pp 7653-7683 (2025)
Publisher Information: Dove Medical Press, 2025.
Publication Year: 2025
Collection: LCC:Medicine (General)
Subject Terms: bone tissue engineering, extracellular vesicles, biomaterials, mesenchymal stem cells, Medicine (General), R5-920
Description: Yan Huang,1 Hui Xie2 1Department of Rehabilitation Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430000 People’s Republic of China; 2Department of Geriatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430000 People’s Republic of ChinaCorrespondence: Hui Xie, Email xiehuijessice@163.comAbstract: With an aging population and increased life expectancy, the clinical burden of bone-related disorders, especially large bone defects, continues to grow, underscoring the urgent need for effective regenerative strategies. Effective bone regeneration is essential not only for restoring skeletal structure and function but also for improving patients’ quality of life and reducing the socioeconomic burden associated with prolonged recovery or surgical failure. Bone tissue engineering has emerged as a promising approach for healing large bone defects. Traditionally, stem cells, biomaterial scaffolds and growth factors have been considered the three essential elements of bone tissue engineering. However, stem cell-based therapies face several significant challenges, including ectopic tissue formation, malignant transformation, cell embolism, and immune rejection. In recent years, extracellular vesicles (EVs) have gained significant attention as an advanced alternative to stem cells and a novel cell-free therapy for bone regeneration due to their inherent advantages, such as low immune-rejection, excellent biocompatibility, significant bioactivity and high feasibility for carrying bioactive molecules or drugs. This review provides a comprehensive overview of the current state and future potential of EV-based strategies in bone tissue engineering. We first review the sources of parent cells for EVs applied in bone tissue engineering and the roles and potential mechanisms of EVs in bone regeneration. We then discuss the various modification strategies employed to enhance the therapeutic potential of EVs. Additionally, we summarize strategies for integrating EVs with various biomaterial scaffolds, with a specific focus on the latest advances in achieving controlled and sustained release of EVs from scaffolds at bone defect sites. Collectively, this review aims to offer key insights into the translational potential of EV-functionalized biomaterials and guide future directions in the development of next-generation bone regenerative therapies.Keywords: bone tissue engineering, extracellular vesicles, biomaterials, mesenchymal stem cells
Document Type: article
File Description: electronic resource
Language: English
ISSN: 1178-2013
Relation: https://www.dovepress.com/extracellular-vesicle-integrated-biomaterials-in-bone-tissue-engineeri-peer-reviewed-fulltext-article-IJN; https://doaj.org/toc/1178-2013
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  Data: Yan Huang,1 Hui Xie2 1Department of Rehabilitation Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430000 People’s Republic of China; 2Department of Geriatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430000 People’s Republic of ChinaCorrespondence: Hui Xie, Email xiehuijessice@163.comAbstract: With an aging population and increased life expectancy, the clinical burden of bone-related disorders, especially large bone defects, continues to grow, underscoring the urgent need for effective regenerative strategies. Effective bone regeneration is essential not only for restoring skeletal structure and function but also for improving patients’ quality of life and reducing the socioeconomic burden associated with prolonged recovery or surgical failure. Bone tissue engineering has emerged as a promising approach for healing large bone defects. Traditionally, stem cells, biomaterial scaffolds and growth factors have been considered the three essential elements of bone tissue engineering. However, stem cell-based therapies face several significant challenges, including ectopic tissue formation, malignant transformation, cell embolism, and immune rejection. In recent years, extracellular vesicles (EVs) have gained significant attention as an advanced alternative to stem cells and a novel cell-free therapy for bone regeneration due to their inherent advantages, such as low immune-rejection, excellent biocompatibility, significant bioactivity and high feasibility for carrying bioactive molecules or drugs. This review provides a comprehensive overview of the current state and future potential of EV-based strategies in bone tissue engineering. We first review the sources of parent cells for EVs applied in bone tissue engineering and the roles and potential mechanisms of EVs in bone regeneration. We then discuss the various modification strategies employed to enhance the therapeutic potential of EVs. Additionally, we summarize strategies for integrating EVs with various biomaterial scaffolds, with a specific focus on the latest advances in achieving controlled and sustained release of EVs from scaffolds at bone defect sites. Collectively, this review aims to offer key insights into the translational potential of EV-functionalized biomaterials and guide future directions in the development of next-generation bone regenerative therapies.Keywords: bone tissue engineering, extracellular vesicles, biomaterials, mesenchymal stem cells
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