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氧化压力诱导的压力颗粒:神经退行性疾病中蛋白质聚合的核心联系
Neelam Younas1,2, Inga Zerr1,2
1Department of Neurology, National Reference Center for Surveillance of TSE, University Medical Center Göttingen, Göttingen, Germany.
Frontiers in neuroscience
|November 24, 2025
概括
异常的压力颗粒 (SG) 在神经退行性疾病中促进有毒蛋白质聚合. 氧化压力推动了从生理学SG转变为病理学聚合物,为阿尔茨海默病等疾病提供治疗点.
科学领域:
- 神经科学是一个神经科学.
- 细胞生物学 细胞生物学
- 生物化学 生物化学
背景情况:
- 细胞内蛋白质聚合 (Tau,TDP43,FUS,α-synuclein) 是神经退行性疾病的核心.
- 通过液-液相分离 (LLPS) 由RNA结合蛋白 (RBPs) 形成的压力颗粒 (SGs) 涉及有毒聚合物核化.
- 慢性压力导致持久性SG,促进病态蛋白质聚合和神经退行,而Tau直接参与SG形成.
研究的目的:
- 综合当前对SG动态如何与氧化应激交叉在增强蛋白质聚合的理解.
- 提出将SG生物学,氧化应激和神经退行性疾病联系起来的分子机制.
- 突出阐明这些治疗开发途径的必要性.
主要方法:
- 文献综述和对SG生物学和神经退行现有研究的综合.
- 分析细胞压力因素,特别是氧化应激在SG动态中的作用.
- 检查影响从生理向病理聚合物的过渡的翻译后修饰 (PTMs).
主要成果:
- 由慢性或过度压力驱动的持久性SG促进了病态蛋白质聚合.
- 陶氏在SG形成中的参与加剧了陶氏聚合和陶氏病变中的疾病进展.
- 氧化应激成为一个关键的上游调解者,推动了从生理学SG转向病理学聚合物的转变.
结论:
- 了解SG动态和氧化应激之间的相互作用对于神经退行性疾病研究至关重要.
- 针对控制SG持久性和氧化应激诱导聚合的分子机制,可能会产生新的治疗策略.
- 进一步的研究对于开发针对阿尔茨海默病和相关病的有效干预措施至关重要.
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