外泌体有望实现更好的骨再生。
Exosomes promise better bone regeneration.
作者信息
Hu Shuaiwen, Wang Shaogeng, Yang Xiaomao, Li Ping, Li Zhiguo, Luo Bin, Liang Yujie, Pan Xiaohua
机构信息
Orthopedic Surgery, Yaan People's Hospital, Yaan, 625000 China.
Department of Orthopedics and Traumatology, The Second Affiliated Hospital of Shenzhen University, Shenzhen, 518100 China.
出版信息
Regen Ther. 2025 Jul 16;30:389-402. doi: 10.1016/j.reth.2025.06.020. eCollection 2025 Dec.
Fractures primarily result from high-energy trauma, leading to structural discontinuity of bone tissue. Contemporary therapeutic approaches continue to face persistent challenges including nonunion, infection, and inflammatory complications that pose significant clinical management difficulties. Emerging evidence demonstrates that extracellular vesicles (EVs), particularly exosomes, serve as critical mediators in diverse pathophysiological processes. Accumulating studies reveal that exosomal cargos enhance osteogenesis and angiogenesis through dynamic regulation of cellular components and molecular networks within the bone remodeling microenvironment, thereby potentiating fracture healing cascades. This comprehensive review systematically examines the mechanistic contributions of exosomes in coordinating osteoblastic differentiation, osteoclastic activity modulation, and neovascularization processes. In addition, we describe the role of exosomes from different cellular sources (e.g., mesenchymal stem cells, endothelial progenitor cells, and osteoblasts) in fracture repair. Finally, this paper elaborates on the potential challenges and future directions for the development of novel exosome-based therapeutic strategies for clinical fracture repair.
骨折主要由高能创伤引起,导致骨组织的结构连续性中断。当代治疗方法仍然面临持续的挑战,包括骨不连、感染和炎症并发症,这些给临床管理带来了重大困难。新出现的证据表明,细胞外囊泡(EVs),尤其是外泌体,在多种病理生理过程中充当关键介质。越来越多的研究表明,外泌体货物通过动态调节骨重塑微环境中的细胞成分和分子网络来增强成骨作用和血管生成,从而促进骨折愈合级联反应。这篇综述系统地研究了外泌体在协调成骨细胞分化、破骨细胞活性调节和新血管形成过程中的机制作用。此外,我们描述了来自不同细胞来源(如间充质干细胞、内皮祖细胞和成骨细胞)的外泌体在骨折修复中的作用。最后,本文阐述了基于外泌体的新型临床骨折修复治疗策略开发的潜在挑战和未来方向。