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Discovery of a Molecular Glue for EGFR Degradation
论文题目: Discovery of a Molecular Glue for EGFR Degradation
作者: Hairui Wang, Hui Wang, Rui Wang, Yuanzhen, Zhipeng Wang, Wenshen Zhou, Li Deng, Xiyin Li, Li Zou, Qin Yang, Ren Lai, Xiaowei Qi, Jianyun Nie, Baowei Jiao
联系作者: njyvip@sina.com;wanghui1@mail.kiz.ac.cn;jiaobaowei@mail.kiz.ac.cn;qxw9908@foxmail.com
发表年度: 2024
DOI: DOI: 10.1038/s41388-024-03241-8
摘要:

Aberrant expression of epidermal growth factor receptor (EGFR) plays a critical role in the pathogenesis of various tumors, potentially representing a target for therapeutic intervention. Nonetheless, EGFR remains a challenging protein to target pharmacologically in triple-negative breast cancer (TNBC). An emerging approach to address the removal of such proteins is the application of molecular glue (MG) degraders. These compounds facilitate protein-protein interactions between a target protein and an E3-ubiquitin ligase, subsequently leading to protein degradation. Herein, we identified a new MG (CDDO-Me, C-28 methyl ester of 2-cyano-3, 12-dioxooleana-1, 9(11)-dien-28-oic acid), which orchestrated binding between EGFR and KEAP1 (an E3-ubiquitin ligase adapter), thereby initiating the ubiquitination and degradation of EGFR. CDDO-Me directly interacted with the tyrosine kinase (TK) domain of EGFR, resulting in its degradation via an autophagy-dependent lysosomal pathway. Knockdown of KEAP1 decreased the degradation of EGFR by reducing its K63-linked ubiquitination, leading to diminished EGFR colocalization in autophagosomes and lysosomes. Notably, CDDO-Me attenuates TNBC progression by accelerating EGFR degradation in cell-derived xenografts and patient-derived organoid models, highlighting its clinical application potential. Consequently, induction of EGFR degradation through MG degraders represents a viable therapeutic strategy for TNBC.

刊物名称: Oncogene
论文出处: https://www.nature.com/articles/s41388-024-03241-8
影响因子: 6.9(2023IF)
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