Musculoskeletal Research Unit, Translational Health Sciences, Bristol Medical School, University of Bristol, Learning and Research Building Level 2, Southmead Hospital, Bristol, BS10 5NB, UK.
Osteoarthritis Cartilage. 2019 Feb;27(2):230-239. doi: 10.1016/j.joca.2018.09.016. Epub 2018 Oct 25.
Osteoarthritis (OA) is a chronic degenerative disease of diarthrodial joints most commonly affecting people over the age of forty. The causes of OA are still unknown and there is much debate in the literature as to the exact sequence of events that trigger the onset of the heterogeneous disease we recognise as OA. There is currently no consensus model for OA that naturally reflects human disease. Existing ex-vivo models do not incorporate the important inter-tissue communication between joint components required for disease progression and differences in size, anatomy, histology and biomechanics between different animal models makes translation to the human model very difficult. This narrative review highlights the advantages and disadvantages of the current models used to study OA. It discusses the challenges of producing a more reliable OA-model and proposes a direction for the development of a consensus model that reflects the natural environment of human OA. We suggest that a human osteochondral plug-based model may overcome many of the fundamental limitations associated with animal and in-vitro models based on isolated cells. Such a model will also provide a platform for the development and testing of targeted treatment and validation of novel OA markers directly on human tissues.
骨关节炎(OA)是一种常见于 40 岁以上人群的关节疾病,属于慢性退行性疾病。OA 的病因尚不清楚,文献中对于引发我们所认识的 OA 这种异质性疾病的确切事件序列存在很多争议。目前,OA 还没有一个自然反映人类疾病的共识模型。现有的体外模型不能整合关节成分之间的重要组织间通讯,而不同动物模型之间在大小、解剖结构、组织学和生物力学方面的差异使得向人类模型的转化非常困难。本综述重点介绍了目前用于研究 OA 的模型的优缺点。它讨论了产生更可靠的 OA 模型的挑战,并为开发反映人类 OA 自然环境的共识模型提出了一个方向。我们认为,基于人软骨骨突的模型可能克服基于分离细胞的动物和体外模型的许多基本局限性。这种模型还将为靶向治疗的开发和测试以及新型 OA 标志物在人类组织上的验证提供一个平台。