PROTAC MNK1 degrader-1 is a selective MNK1 PROTAC degrader with a DC50 of 11.92 nM, and a Dmax > 96% in MV4-11 cells. PROTAC MNK1 degrader-1 significantly reduces p-eIF4E (IC50: 22.07 nM), induces apoptosis, and arrests the cell cycle at the G1 phase. PROTAC MNK1 degrader-1 has potent antitumor activity. PROTAC MNK1 degrader-1 has robust antileukemic efficacy in MV4-11 xenograft mice model with acceptable drug safety[1]. Pink: MNK1 ligand (HY-176429), Blue: CRBN ligase ligand (HY-A0003), Black: linker (HY-Y1139), CRBN + linker: HY-176430
