晨间信号Morning Signal
《科学》 第392卷 第6798期 · 2026年5月7日 · 中文解读

短RNA伴侣蛋白促进抗聚集的TDP-43构象以缓解神经退行性疾病

Short RNA chaperones promote aggregation-resistant TDP-43 conformers to mitigate neurodegeneration · K. E. Copley et al.
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这篇讲什么
本文研究了短RNA伴侣蛋白如何通过变构机制稳定TDP-43的RNA识别基序并 destabilize 朊病毒样结构域中的螺旋区域,从而促进抗聚集构象,并在ALS患者来源的运动神经元和小鼠模型中减轻病理聚集、恢复功能并发挥神经保护作用。
原文开头
Full article and list of author affiliations: https://doi.org/10.1126/ science.adv3301 Katie E. Copley et al. INTRODUCTION: Aberrant aggregation of TDP-43, an RNA binding protein with a prion-like domain, is a pathological hallmark of amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD). TDP-43 mislocalization from the nucleus to the cytoplasm and subsequent aggregation drive neuronal dysfunction and death across these fatal neurodegenerative diseases. TDP-43 pathology also occurs frequently in Alzheimer’s disease (AD), where it exacerbates cognitive decline, yet effective therapeutic strategies remain limited across all TDP-43 proteinopathies. Deliverable agents that prevent and reverse aberrant TDP-43 aggregation and restore functional TDP-43 to the nucleus in degenerating neurons could provide a therapeutic solution. …
摘自《科学》(Science)第392卷 第6798期 · 2026年5月7日,K. E. Copley et al.。仅引用开头一小段供了解文章,版权归原刊所有,全文请阅读原刊。
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