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追踪活细胞中的PROTAC降解途径凸显了三元复合体测量对于PROTAC优化的重要性

Martin P Schwalm¹, Andreas Krämer¹, Anja Dölle¹

¹Institut für Pharmazeutische Chemie, Goethe-University Frankfurt, Biozentrum, Max-von-Laue-Str. 9, 60438 Frankfurt am Main, Germany; Structural Genomics Consortium, Goethe-University Frankfurt, Buchmann Institute for Life Sciences, Max-von-Laue-Str. 15, 60438 Frankfurt am Main, Germany.

Cell chemical biology

|June 24, 2023

概括

由于未知的降解步骤,开发PROteolysis TTargeting Chimeras (PROTACs) 是一个挑战. 新的活细胞测定使得PROTAC诱导的降解和三元复合体形成的动态分析能够用于合理的PROTAC设计.

科学领域:

生物化学生物化学
分子生物学分子生物学
药物发现药物发现药物发现

背景情况:

针对蛋白质解体的TARgeting Chimera (PROTACs) 通过诱导向蛋白质降解,提供了一种新的治疗策略.
多步骤的PROTAC降解途径及其限制速度的步骤尚未完全理解,这阻碍了合理的药物设计.
目前用于PROTAC效率分析的试验具有较低的吞吐量,限制了全面研究.

研究的目的:

开发基于细胞的新型试验,以实时测量PROTAC诱导的蛋白质降解动力学和三元复合体形成.
研究三元复合体形成和稳定性在PROTAC早期降解级联中的作用.
通过活细胞动态监测建立一个 PROTACs 合理优化的战略.

主要方法:

开发基于NanoLuciferase和HaloTag的基于细胞的测试.
活细胞中PROTAC诱导的降解和三元复合体形成的动态分析.
三元复合体的结构分析,以确定关键接口相互作用.

主要成果:

开发的测试成功测量了PROTAC诱导的降解和三元复合体形成动力学.
三级复合物的形成和稳定性被确定为PROTAC早期降解途径的关键因素.
一个高效的E3酶-点接口被发现是提高三元复合体稳定性的关键.

结论:

新的活细胞测试提供了一个强大的工具来剖析PROTAC的作用机制.
了解三元复杂动力学对于 PROTACs 的合理设计和优化至关重要.
这项工作建立了一个框架,通过对降解途径的动态监测来加速PROTAC的发展.

关键词:

这就是HiBiTT.在NanoBiTT中使用NanoBiT.这就是PROTAC.有针对性的蛋白质降解.这是WDR5的WDR5.降解动力学的降解动力学.降解剂降解剂是一种降解剂.运动学的动力学.活细胞是一种活细胞.查检查查检查查检查查检查

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