Qiao Han, Tang Tingting
Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011 China.
Bone Res. 2018 Feb 26;6:3. doi: 10.1038/s41413-018-0008-9. eCollection 2018.
Cancer metastasis to bone is a three-dimensional (3D), multistep, dynamic process that requires the sequential involvement of three microenvironments, namely, the primary tumour microenvironment, the circulation microenvironment and the bone microenvironment. Engineered 3D approaches allow for a vivid recapitulation of in vivo cancerous microenvironments in vitro, in which the biological behaviours of cancer cells can be assessed under different metastatic conditions. Therefore, modelling bone metastasis microenvironments with 3D cultures is imperative for advancing cancer research and anti-cancer treatment strategies. In this review, multicellular tumour spheroids and bioreactors, tissue engineering constructs and scaffolds, microfluidic systems and 3D bioprinting technology are discussed to explore the progression of the 3D engineering approaches used to model the three microenvironments of bone metastasis. We aim to provide new insights into cancer biology and advance the translation of new therapies for bone metastasis.
癌症向骨转移是一个三维(3D)、多步骤的动态过程,需要依次涉及三个微环境,即原发性肿瘤微环境、循环微环境和骨微环境。工程化3D方法能够在体外生动再现体内癌性微环境,在此环境中,可以在不同转移条件下评估癌细胞的生物学行为。因此,利用3D培养对骨转移微环境进行建模对于推进癌症研究和抗癌治疗策略至关重要。在本综述中,我们讨论了多细胞肿瘤球体和生物反应器、组织工程构建体和支架、微流控系统以及3D生物打印技术,以探索用于模拟骨转移三个微环境的3D工程方法的进展。我们旨在为癌症生物学提供新见解,并推动骨转移新疗法的转化。