Afridi Ruqayya, Kim Jong-Heon, Rahman Md Habibur, Suk Kyoungho
BK21 Plus KNU Biomedical Convergence Program, Department of Pharmacology, Brain Science and Engineering Institute, School of Medicine, Kyungpook National University, Daegu, South Korea.
Front Cell Neurosci. 2020 Feb 11;14:20. doi: 10.3389/fncel.2020.00020. eCollection 2020.
Glial cells are multifunctional, non-neuronal components of the central nervous system with diverse phenotypes that have gained much attention for their close involvement in neuroinflammation and neurodegenerative diseases. Glial phenotypes are primarily characterized by their structural and functional changes in response to various stimuli, which can be either neuroprotective or neurotoxic. The reliance of neurons on glial cells is essential to fulfill the energy demands of the brain for its proper functioning. Moreover, the glial cells perform distinct functions to regulate their own metabolic activities, as well as work in close conjunction with neurons through various secreted signaling or guidance molecules, thereby constituting a complex network of neuron-glial interactions in health and disease. The emerging evidence suggests that, in disease conditions, the metabolic alterations in the glial cells can induce structural and functional changes together with neuronal dysfunction indicating the importance of neuron-glia interactions in the pathophysiology of neurological disorders. This review covers the recent developments that implicate the regulation of glial phenotypic changes and its consequences on neuron-glia interactions in neurological disorders. Finally, we discuss the possibilities and challenges of targeting glial metabolism as a strategy to treat neurological disorders.
神经胶质细胞是中枢神经系统中具有多种功能的非神经元成分,具有多种表型,因其与神经炎症和神经退行性疾病密切相关而备受关注。神经胶质细胞表型的主要特征是其对各种刺激的结构和功能变化,这些变化可能具有神经保护作用,也可能具有神经毒性。神经元对神经胶质细胞的依赖对于满足大脑正常运作的能量需求至关重要。此外,神经胶质细胞执行独特的功能来调节自身的代谢活动,并通过各种分泌的信号分子或导向分子与神经元密切协作,从而在健康和疾病状态下构成一个复杂的神经元-神经胶质细胞相互作用网络。新出现的证据表明,在疾病状态下,神经胶质细胞的代谢改变可诱导结构和功能变化以及神经元功能障碍,这表明神经元-神经胶质细胞相互作用在神经疾病病理生理学中的重要性。本综述涵盖了涉及神经疾病中神经胶质细胞表型变化调控及其对神经元-神经胶质细胞相互作用影响的最新进展。最后,我们讨论了将神经胶质细胞代谢作为治疗神经疾病策略的可能性和挑战。