通过基于碎片的药物发现,重新利用阿尼杜拉金治疗阿尔茨海默病
Siqi Xie1, Yumei Liang1, Yang Song1
1Innovation Center for Neurological Disorders and Department of Neurology, Xuanwu Hospital, Capital Medical University, National Clinical Research Center for Geriatric Diseases, Beijing 100053, P. R. China.
ACS chemical neuroscience
|August 3, 2024
概括
基于碎片的药物发现确定了抗真菌药物anidulafungin,作为β-粉样蛋白聚合的强有力的抑制剂. 这种重新设计的药物通过降低粉样蛋白毒性来治疗阿尔茨海默病.
科学领域:
- 神经科学是一个神经科学.
- 药理学 药理学是指药理学的学科.
- 计算化学计算化学
背景情况:
- β-粉样蛋白 (Aβ) 的错误折叠和聚合是阿尔茨海默氏症 (AD) 病原体的核心.
- 抑制Aβ聚合为AD提供了一个治疗策略.
- 基于碎片的药物发现 (FBDD) 可以识别用于抑制剂设计的关键分子碎片.
研究的目的:
- 使用in silico FBDD方法识别Aβ聚合的新型抑制剂.
- 选现有药物,特别是抗感染药物,以检测Aβ聚合抑制活性.
- 评估重新定位药物的潜力,如阿尼杜拉金,用于AD治疗.
主要方法:
- 基于片的药物发现,以在Aβ聚合抑制剂中识别富含片段.
- 使用已识别的碎片对抗感染药物的查.
- 在体外试验测试以评估anidulafungin在抑制Aβ聚合和降低Aβ毒性的有效性.
- 动力分析和分子对接模拟以阐明作用机制.
主要成果:
- 确定了17个碎片集群显著丰富于Aβ聚合抑制剂.
- 16种抗感染药物被选,其中5种被选择进行进一步调查.
- 安尼杜拉金通过阻断初级核形成,在体外抑制Aβ聚合方面表现出高效率.
- 安尼杜拉丁在BV2微质细胞中降低了Aβ寡合体毒性.
- 分子对接表明了anidulafungin与各种Aβ物种之间的相互作用.
结论:
- 安尼杜拉金是阿尔茨海默病治疗中重新利用的有希望的候选人.
- FBDD是一种有效的策略,用于发现针对Aβ聚合的药物.
- 安尼杜拉金的机制涉及抑制Aβ核化和减少寡合物毒性.
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