Bispecific Aptamer Chimeras Enable Targeted Protein Degradation on Cell Membranes.

The ability to regulate membrane protein abundance offers great opportunities for developing therapeutic sites for various diseases. Herein, we describe a platform for the targeted degradation of membrane-associated proteins using bispecific aptamer chimeras that bind both the cell-surface lysosome-shuttling receptor (IGFIIR) and the targeted membrane-bound proteins of interest. We demonstrate that the aptamer chimeras can efficiently and quickly shuttle the therapeutically relevant membrane proteins of Met and PTK-7 to lysosomes and degrade them through the lysosomal protein degradation machinery. We anticipate that our method will provide a universal platform for the use of readily synthesized aptamer materials for biochemical research and potential therapeutics. © 2021 Wiley-VCH GmbH.

Citation

Yanyan Miao, Qianqian Gao, Menghan Mao, Chao Zhang, Liqun Yang, Yang Yang, Da Han. Bispecific Aptamer Chimeras Enable Targeted Protein Degradation on Cell Membranes. Angewandte Chemie (International ed. in English). 2021 May 10;60(20):11267-11271

PMID: 33634555

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