Wu et al. report that IFNγ induces the phase separation of KAT8 and IRF1 into condensates that promote PD-L1 upregulation. They further identify a peptide that blocks KAT8–IRF1 condensates, reducing PD-L1 levels and increasing antitumor immunity.
- Yuanzhong Wu
- Liwen Zhou
- Tiebang Kang