GSK699 is a KAT2A/B/PCAF/GCN5 PROTAC degrader. GSK699 induces proteasome-dependent degradation of KAT2A, KAT2B, PCAF and GCN5, regulates the histone acetyltransferase activity of the SAGA complex, and reduces the level of histone H3K9ac. GSK699 inhibits the growth of neuroblastoma, acute myeloid leukemia and small cell lung cancer cells. GSK699 reduces the production of inflammatory cytokines and chemokines, and impairs LPS-stimulated immune cell responses. GSK699 is applicable to research related to acute myeloid leukemia, small cell lung cancer, neuroblastoma and inflammatory diseases[1].