内质网
纳米器件
内质网相关蛋白降解
自噬
细胞生物学
细胞器
溶酶体
细胞质
未折叠蛋白反应
蛋白质降解
化学
伴侣(临床)
膜蛋白
细胞内
膜
生物
生物化学
纳米技术
酶
材料科学
病理
细胞凋亡
医学
作者
Caixia Liu,Bin Wang,Weiping Zhu,Yufang Xu,Yangyang Yang,Xuhong Qian
标识
DOI:10.1002/anie.202205509
摘要
Targeted protein degradation via proteasomal and lysosomal pathways is a promising therapeutic approach, and proteins in cytoplasm or on the cell membrane can be easily contacted and have become the major targets. However, degradation of disease-related proteins that exist in membrane-bound organelles (MBO) such as the endoplasmic reticulum (ER) remains unsolved due to the membrane limits. Here we describe a DNA nanodevice that shows ER targeting capacity and undergoes new intracellular degradation via the autophagy-dependent pathway. Then the DNA nanostructure functionalized with specific ligands is used to selectively catch ER-localized proteins and then transport them to the lysosome for degradation. Through this technique, the degradation of both exogenous ER-resident protein (ER-eGFP) and endogenous overexpressed molecular chaperone (glucose-regulated protein 78) in cancer cells has been successfully executed with high efficiency.
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