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计算设计的分子调节与ALS相关的氨基原体TDP-43_307-319聚合

Xikun Liu¹, Shuya Duan¹, Yingying Jin¹

¹Department of Chemistry & Biochemistry, University of California Santa Barbara, Santa Barbara, California 93106, United States.

ACS chemical neuroscience

|December 5, 2023

概括

研究人员设计了五种分子来抑制有毒的TDP-43聚合. 分子[AC0101]有效地预防和分离有害的TDP-43寡合体,为像ALS这样的神经退行性疾病提供了潜在的治疗策略.

科学领域:

神经科学是一个神经科学.
生物化学生物化学
计算化学计算化学

背景情况:

43kDa的TARDNA结合蛋白 (TDP-43) 的异常聚合是神经退行性疾病 (如ALS) 的标志.
在C端的TDP-43_307-319形成有毒的六极形圆柱体结构和粉样纤维.
针对这些有毒聚合物对于开发新的治疗策略至关重要.

研究的目的:

使用联合药空间 (JPS) 模型识别和设计新的TDP-43抑制剂.
评估JPS设计的分子在预防和解离TDP-43_307-319寡合物的有效性.
阐明抑制和解离的原子化机制.

主要方法:

联合药空间 (JPS) 建模用于分子设计.
实验分析:离子移动性质谱学,提奥夫拉T光,圆形二极化,原子力显微镜.
计算方法:分子动力学模拟.

主要成果:

五个由JPS设计的分子成功抑制了TDP-43_307-319粉样纤维的形成.
[AC0101]在预防和分离高阶TDP-43寡合物方面表现出卓越的疗效.
分子动力学揭示了[AC0101]的灵活性和结合潜力,促进插入和破坏六边形结构.

结论:

由JPS设计的分子是TDP-43_307-319聚合的有效抑制剂.
[AC0101]显示了作为TDP-43相关神经退行性疾病的治疗的显著潜力.
该研究提出了这些分子如何破坏有毒的TDP-43寡合体的原子化机制.

关键词:

这就是ALS.在TDP-43中使用.粉样蛋白的小分子.离子移动性质谱仪质谱仪小分子抑制剂小分子抑制剂

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