Marinval Nicolas, Chew Sing Yian
School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore 637459.
APL Bioeng. 2021 Apr 30;5(2):021505. doi: 10.1063/5.0037814. eCollection 2021 Jun.
Glial cells are mechanosensitive, and thus, engineered systems have taken a step forward to design mechanotransduction platforms in order to impart diverse mechanical stresses to cells. Mechanical strain encountered in the central nervous system can arise from diverse mechanisms, such as tissue reorganization, fluid flow, and axon growth, as well as pathological events including axon swelling or mechanical trauma. Biomechanical relevance of the mechanical testing requires to be placed in line with the physiological and mechanical changes in central nervous tissues that occur during the progression of neurodegenerative diseases. Mechanotransduction signaling utilized by glial cells and the recent approaches intended to model altered microenvironment adapted to pathological context are discussed in this review. New insights in systems merging substrate's stiffness and topography should be considered for further glial mechanotransduction studies, while testing platforms for drug discoveries promise great advancements in pharmacotherapy. Potential leads and strategies for clinical outcomes are expected to be developed following the exploration of these glial mechanosensitive signaling pathways.
神经胶质细胞具有机械敏感性,因此,工程系统已朝着设计机械转导平台迈出了一步,以便向细胞施加各种机械应力。中枢神经系统中遇到的机械应变可能源于多种机制,如组织重组、流体流动和轴突生长,以及包括轴突肿胀或机械创伤在内的病理事件。机械测试的生物力学相关性需要与神经退行性疾病进展过程中中枢神经组织的生理和机械变化相一致。本综述讨论了神经胶质细胞利用的机械转导信号以及旨在模拟适应病理环境的改变的微环境的最新方法。在进一步的神经胶质机械转导研究中,应考虑系统中底物硬度和拓扑结构融合的新见解,而药物发现的测试平台有望在药物治疗方面取得巨大进展。在探索这些神经胶质机械敏感信号通路之后,有望开发出临床结果的潜在线索和策略。