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阶段分离增强的PROTAC用于高效的蛋白质降解

Xiaolin Yu¹, Wenrui Hu¹, Hang Dong¹

¹State Key Laboratory of Chemical Resource Engineering, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China.

Biomacromolecules

|June 3, 2024

概括

基于相分离的PROTACs (PSETACs) 通过形成细胞液滴来增强蛋白质降解. 这种通过mRNA-LNP提供的新方法为向蛋白质降解提供了一个有前途的治疗策略.

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:

生物宏分子冷凝剂通过相分离提高生物过程效率.
向蛋白质分解的仿真体 (PROTACs) 是针对蛋白质降解的有效工具.
目前的PROTAC技术可以改进,用于增强治疗应用.

研究的目的:

设计利用相位分离促进蛋白质降解的 PROTAC.
研究相分离增强型PROTACs (PSETACs) 在降解标蛋白中的有效性.
为PSETACs使用mRNA-LNP建立一种新的细胞内传递方法,以潜在的治疗用途.

主要方法:

将一个内在无序区域纳入 PROTAC,以诱导相位分离 (PSETAC).
评估PSETAC诱导的目标蛋白滴滴形成和细胞中的降解效率.
使用核向域用于核蛋白降解与PSETAC.
通过脂质纳米粒子封装的mRNA (mRNA-LNP) 进行PSETAC的细胞内传递.

主要成果:

与标准的PROTAC相比,PSETACs形成了 protein滴,显著提高了降解效率.
具有核向域的PSETACs成功降解了核蛋白.
使用mRNA-LNP进行PSETAC的细胞内输送使内源蛋白降解成为可能.

结论:

通过生物宏分子相分离,PSETACs代表了一种通过生物宏分子相分离来增强蛋白质降解的新策略.
该PSETAC mRNA-LNP方法提供了一个潜在的可翻译和安全的治疗方法.
这项技术有望开发基于PROTACs的各种疾病的新临床应用.

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