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碎片查揭示了针对来自Trypanosoma brucei的Sirtuin-2-相关蛋白1的新型支架

Renan A Gomes¹, Marcelo D Polêto², Hugo Verli²

¹Departamento de Farmácia, Faculdade de Ciências Farmacêuticas, Universidade de São Paulo, Avenue. Lineu Prestes, 580, Cidade Universitária, São Paulo, São Paulo 05508-000, Brazil.

|February 10, 2025

概括

基于碎片的药物发现确定了Trypanosoma brucei Sirtuin-2相关蛋白1的新型抑制剂,这是治疗睡眠疾病的关键标. 这种方法产生了化学上不同的起点,具有高的连接剂效率.

科学领域:

生物化学生化学
药用化学医学化学
寄生虫学的寄生虫学

背景情况:

赛尔图因-2 (Sir2) 蛋白质是抗松体药物开发的关键标.
对Trypanosoma brucei Sir2相关蛋白1的强效抑制剂的知识仍然有限.

研究的目的:

使用基于片段的药物发现 (FBDD) 识别Trypanosoma brucei Sir2相关蛋白1的新型抑制剂.
为了探索新的化学支架,用于抗松体药物线索.

主要方法:

利用人类Sir2的结晶学数据和寄生虫Sir2的活性部位特征来创建一个有针对性的片段库.
选碎片库以确定潜在的抑制剂.
进行了有前途的碎片撞击的化学太空探索.

主要成果:

鉴定了十个碎片匹配,引入了九个与已知的Sir2抑制剂不同的新型亚结构.
片段1显示出最高的功效,IC50为17.8μM,干效率为0.41.
进一步的优化证实Fragment 1是最强大的抑制剂.

结论:

FBDD是一种有效的策略,用于发现针对传染病点的化学特异性抑制剂.
鉴定到的碎片代表了开发新的抗类体剂的有希望的起点.

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