PROTAC EZH2 Degrader-44 (compound 60) is a highly efficient PROTAC degrader targeting the EZH2-PRC2 complex. By recruiting the CRBN E3 ligase and relying on the proteasome system, PROTAC EZH2 Degrader-44 simultaneously induces the degradation of core components EZH2, SUZ12 and EED, thereby significantly reducing the levels of H3K27me3 and CARM1. PROTAC EZH2 Degrader-44 exerts antiproliferative effects through a dual mechanism: on the one hand, it triggers mitochondrial dysfunction leading to decreased membrane potential; on the other hand, it strongly promotes apoptosis by regulating Bcl-2 family proteins (upregulating Bax, Caspase-3 and PARP, and downregulating Bcl-2). PROTAC EZH2 Degrader-44 exhibits only extremely low cytotoxicity in human normal mammary epithelial, liver and kidney cells, showing a favorable safety window. PROTAC EZH2 Degrader-44 is an ideal tool molecule for exploring the mechanisms of targeted therapy for triple-negative breast cancer.
(Pink: EZH2 ligand ; Blue: VHL ligand ; Black: linker).
