Li Chiyu, Fan Yubo, Zheng Lisha
Key Laboratory of Biomechanics and Mechanobiology, Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, P. R. China.
Sheng Wu Yi Xue Gong Cheng Xue Za Zhi. 2023 Aug 25;40(4):609-616. doi: 10.7507/1001-5515.202208002.
Stem cells have been regarded with promising application potential in tissue engineering and regenerative medicine due to their self-renewal and multidirectional differentiation abilities. However, their fate is relied on their local microenvironment, or niche. Recent studied have demonstrated that biophysical factors, defined as physical microenvironment in which stem cells located play a vital role in regulating stem cell committed differentiation. , synthetic physical microenvironments can be used to precisely control a variety of biophysical properties. On this basis, the effect of biophysical properties such as matrix stiffness, matrix topography and mechanical force on the committed differentiation of stem cells was further investigated. This paper summarizes the approach of mechanical models of artificial physical microenvironment and reviews the effects of different biophysical characteristics on stem cell differentiation, in order to provide reference for future research and development in related fields.
由于干细胞具有自我更新和多向分化能力,它们在组织工程和再生医学中被认为具有广阔的应用潜力。然而,它们的命运取决于其局部微环境,即生态位。最近的研究表明,生物物理因素,即干细胞所处的物理微环境,在调节干细胞定向分化中起着至关重要的作用。此外,合成物理微环境可用于精确控制各种生物物理特性。在此基础上,进一步研究了基质刚度、基质拓扑结构和机械力等生物物理特性对干细胞定向分化的影响。本文总结了人工物理微环境力学模型的构建方法,并综述了不同生物物理特性对干细胞分化的影响,以期为相关领域的未来研发提供参考。