%0 Journal Article %T A molecular glue degrader of the WIZ transcription factor for fetal hemoglobin induction. %A Ting PY %A Borikar S %A Kerrigan JR %A Thomsen NM %A Aghania E %A Hinman AE %A Reyes A %A Pizzato N %A Fodor BD %A Wu F %A Belew MS %A Mao X %A Wang J %A Chitnis S %A Niu W %A Hachey A %A Cobb JS %A Savage NA %A Burke A %A Paulk J %A Dovala D %A Lin J %A Clifton MC %A Ornelas E %A Ma X %A Ware NF %A Sanchez CC %A Taraszka J %A Terranova R %A Knehr J %A Altorfer M %A Barnes SW %A Beckwith REJ %A Solomon JM %A Dales NA %A Patterson AW %A Wagner J %A Bouwmeester T %A Dranoff G %A Stevenson SC %A Bradner JE %J Science %V 385 %N 6704 %D 2024 Jul 5 %M 38963839 %F 63.714 %R 10.1126/science.adk6129 %X Sickle cell disease (SCD) is a prevalent, life-threatening condition attributable to a heritable mutation in β-hemoglobin. Therapeutic induction of fetal hemoglobin (HbF) can ameliorate disease complications and has been intently pursued. However, safe and effective small-molecule inducers of HbF remain elusive. We report the discovery of dWIZ-1 and dWIZ-2, molecular glue degraders of the WIZ transcription factor that robustly induce HbF in erythroblasts. Phenotypic screening of a cereblon (CRBN)-biased chemical library revealed WIZ as a previously unknown repressor of HbF. WIZ degradation is mediated by recruitment of WIZ(ZF7) to CRBN by dWIZ-1, as resolved by crystallography of the ternary complex. Pharmacological degradation of WIZ was well tolerated and induced HbF in humanized mice and cynomolgus monkeys. These findings establish WIZ degradation as a globally accessible therapeutic strategy for SCD.