Autophagy Receptor-Inspired Antibody-Fusion Proteins for Targeted Intracellular Degradation.

Autophagy Receptor-Inspired Antibody-Fusion Proteins for Targeted Intracellular Degradation.
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DOI:
10.1021/jacs.3c05199
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发表时间:
2023-11-08
影响因子:
15
通讯作者:
Arkin MR
Arkin MR
中科院分区:
化学1区
文献类型:
--
作者:
Jiang Z;Kuo YH;Arkin MR

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自噬是负责降解大的细胞内内容物,如不需要的蛋白质聚集体和细胞器。因此,受损的自噬可导致病理性聚集体的积累,与衰老和神经退行性疾病相关。然而,一个广泛适用的方法是没有可用于在哺乳动物细胞中的蛋白质聚集体或细胞器的靶向降解。在本文中,我们开发了一系列自噬受体激发的靶向嵌合体(AceTAC),其可以诱导易聚集蛋白和蛋白质聚集体(例如,亨廷顿蛋白,TDP-43,和FUS突变体),以及细胞器(例如,线粒体、过氧化物酶体和内质网)。这些基于抗体融合的AceTAC降解剂被设计为模拟自噬受体的功能,同时与细胞靶标和自噬体膜上的LC 3蛋白结合,最终将靶标转运至自噬-溶酶体过程进行降解。AceTAC降解系统提供了通过自噬进行基于抗体的降解的设计原则,极大地扩展了细胞内靶向降解技术的范围。
Autophagy is responsible for the degradation of large intracellular contents, such as unwanted protein aggregates and organelles. Impaired autophagy can therefore lead to the accumulation of pathological aggregates, correlating with aging and neurodegenerative diseases. However, a broadly applicable methodology is not available for the targeted degradation of protein aggregates or organelles in mammalian cells. Herein, we developed a series of autophagy receptor-inspired targeting chimeras (AceTACs) that can induce the targeted degradation of aggregation-prone proteins and protein aggregates (e.g., huntingtin, TDP-43, and FUS mutants), as well as organelles (e.g., mitochondria, peroxisomes, and endoplasmic reticulum). These antibody-fusion-based AceTAC degraders were designed to mimic the function of autophagy receptors, simultaneously binding with the cellular targets and the LC3 proteins on the autophagosomal membrane, eventually transporting the target to the autophagy-lysosomal process for degradation. The AceTAC degradation system provides design principles for antibody-based degradation through autophagy, largely expanding the scope of intracellular targeted degradation technologies.
p97(VCP)蛋白 - 蛋白质相互作用的细胞内调节抑制剂的Adaptor特异性抗体损伤。
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