Mao Kaige, Wang Yifan, Tong Sengpav, Li Bo, He Zhi, Wang Cunyang, Zhang Chuyue, Wang Xianzheng, Cheng Junyao, Liu Jianheng, Wang Zheng
Department of Orthopedics, The Fourth Medical Centre of Chinese PLA General, Hospital, Beijing, China.
Chinese PLA Medical School, Beijing, China.
Tissue Eng Part A. 2025 Jul 14. doi: 10.1177/19373341251359279.
Bone tissue engineering has long been a focal point of research, aiming to address critical large segmental bone defects resulting from severe trauma, tumors, and other bone-related diseases. Despite significant advancements in conventional bone tissue engineering, the simulation of the intricate microenvironment characteristic of natural bone tissue remains inadequate. Natural bone is characterized by intricate macroscopic and microscopic architectures, along with a dynamic microenvironment that facilitates processes such as bone formation, remodeling, and repair. Bone organoids-three-dimensional structures that emulate natural bone tissue derived from stem cells-represent a substantial advancement in both bone tissue engineering and precision medicine. These organoids present a promising pathway for enhancing our understanding of bone biology and disease mechanisms. Their unique potential within precision medicine is underscored by their applications in personalized drug testing, disease modeling, and as platforms for regenerative therapies. As this field continues to progress, bone organoids are poised to play an essential role in developing tailored treatment strategies for disorders related to bones. In this review, we summarize the roles of cell types, biomaterials and culture techniques in the construction of bone organoids, and emphasize the key significance of microenvironment in guiding the maturation of bone organoids. In addition, we will discuss the standardization, current limitations, and future directions of bone organoids to provide insights for research and clinical applications.
长期以来,骨组织工程一直是研究的焦点,旨在解决由严重创伤、肿瘤和其他骨相关疾病导致的关键大段骨缺损问题。尽管传统骨组织工程取得了显著进展,但对天然骨组织复杂微环境的模拟仍显不足。天然骨具有复杂的宏观和微观结构,以及促进骨形成、重塑和修复等过程的动态微环境。骨类器官——源自干细胞的模拟天然骨组织的三维结构——代表了骨组织工程和精准医学的重大进展。这些类器官为增进我们对骨生物学和疾病机制的理解提供了一条有前景的途径。它们在精准医学中的独特潜力通过其在个性化药物测试、疾病建模以及作为再生治疗平台的应用得到了凸显。随着该领域的不断发展,骨类器官有望在制定针对骨骼相关疾病的个性化治疗策略中发挥重要作用。在本综述中,我们总结了细胞类型、生物材料和培养技术在骨类器官构建中的作用,并强调了微环境在引导骨类器官成熟方面的关键意义。此外,我们将讨论骨类器官的标准化、当前局限性和未来方向,以为研究和临床应用提供见解。
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