Weskamp Kaitlin, Barmada Sami J
Neuroscience Graduate Program and Department of Neurology, University of Michigan School of Medicine, Ann Arbor, MI, USA.
Adv Neurobiol. 2018;20:103-142. doi: 10.1007/978-3-319-89689-2_5.
Ribonucleic acid (RNA) homeostasis is dynamically modulated in response to changing physiological conditions. Tight regulation of RNA abundance through both transcription and degradation determines the amount, timing, and location of protein translation. This balance is of particular importance in neurons, which are among the most metabolically active and morphologically complex cells in the body. As a result, any disruptions in RNA degradation can have dramatic consequences for neuronal health. In this chapter, we will first discuss mechanisms of RNA stabilization and decay. We will then explore how the disruption of these pathways can lead to neurodegenerative disease.
核糖核酸(RNA)稳态会根据不断变化的生理状况进行动态调节。通过转录和降解对RNA丰度进行严格调控,决定了蛋白质翻译的数量、时间和位置。这种平衡在神经元中尤为重要,神经元是体内代谢最活跃、形态最复杂的细胞之一。因此,RNA降解过程中的任何干扰都可能对神经元健康产生重大影响。在本章中,我们将首先讨论RNA稳定和降解的机制。然后,我们将探讨这些途径的破坏如何导致神经退行性疾病。