Shimomura Kazunori, Moriguchi Yu, Murawski Christopher D, Yoshikawa Hideki, Nakamura Norimasa
1 Department of Orthopaedics, Osaka University Graduate School of Medicine , Osaka, Japan .
Tissue Eng Part B Rev. 2014 Oct;20(5):468-76. doi: 10.1089/ten.TEB.2013.0543. Epub 2014 Feb 26.
The management of osteoarthritis (OA) remains challenging and controversial. Although several clinical options exist for the treatment of OA, regeneration of the damaged articular cartilage has proved difficult due to the limited healing capacity. With the advancements in tissue engineering and cell-based technologies over the past decade, new therapeutic options for patients with osteochondral lesions potentially exist. This review will focus on the feasibility of tissue-engineered biphasic scaffolds, which can mimic the native osteochondral complex, for osteochondral repair and highlight the recent development of these techniques toward tissue regeneration. Moreover, basic anatomy, strategy for osteochondral repair, the design and fabrication methods of scaffolds, as well as the choice of cells, growth factor, and materials will be discussed. Specifically, we focus on the latest preclinical animal studies using large animals and clinical trials with high clinical relevance. In turn, this will facilitate an understanding of the latest trends in osteochondral repair and contribute to the future application of such clinical therapies in patients with OA.
骨关节炎(OA)的管理仍然具有挑战性且存在争议。尽管有几种临床方法可用于治疗OA,但由于愈合能力有限,受损关节软骨的再生已被证明很困难。随着过去十年组织工程和基于细胞的技术的进步,骨软骨损伤患者可能存在新的治疗选择。本综述将重点关注能够模拟天然骨软骨复合体的组织工程双相支架用于骨软骨修复的可行性,并强调这些技术在组织再生方面的最新进展。此外,还将讨论基本解剖结构、骨软骨修复策略、支架的设计和制造方法,以及细胞、生长因子和材料的选择。具体而言,我们关注使用大型动物的最新临床前动物研究以及具有高度临床相关性的临床试验。反过来,这将有助于理解骨软骨修复的最新趋势,并促进此类临床疗法在OA患者中的未来应用。