The AUTOTAC chemical biology platform for targeted protein degradation via the autophagy-lysosome system

Chang Hoon Ji, Hee Yeon Kim, Min Ju Lee, Ah Jung Heo, Daniel Youngjae Park, Sungsu Lim, Seulgi Shin, Woo Seung Yang, Chang An Jung, Kun Young Kim, Eun Hye Jeong, Sun Ho Park, Su Bin Kim, Su Jin Lee, Jeong Eun Na, Ji In Kang, Hyung Min Chi, Hyun Tae Kim, Yun Kyung Kim, Bo Yeon KimYong Tae Kwon

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Targeted protein degradation allows targeting undruggable proteins for therapeutic applications as well as eliminating proteins of interest for research purposes. While several degraders that harness the proteasome or the lysosome have been developed, a technology that simultaneously degrades targets and accelerates cellular autophagic flux is still missing. In this study, we develop a general chemical tool and platform technology termed AUTOphagy-TArgeting Chimera (AUTOTAC), which employs bifunctional molecules composed of target-binding ligands linked to autophagy-targeting ligands. AUTOTACs bind the ZZ domain of the otherwise dormant autophagy receptor p62/Sequestosome-1/SQSTM1, which is activated into oligomeric bodies in complex with targets for their sequestration and degradation. We use AUTOTACs to degrade various oncoproteins and degradation-resistant aggregates in neurodegeneration at nanomolar DC50 values in vitro and in vivo. AUTOTAC provides a platform for selective proteolysis in basic research and drug development.

Original languageEnglish
Article number904
JournalNature Communications
Volume13
Issue number1
DOIs
StatePublished - Dec 2022

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