[CAS NO. 1628607-64-6]  INCB054329

INCB054329 shows no significant inhibitory activity against 16 non-BET bromodomains at 3 μM. In a panel of 32 hematologic cancer cell lines derived from acute myeloid leukemia, non-Hodgkin lymphoma, and multiple myeloma, the median 50% growth inhibition (GI50) value of INCB054329 is 152 nM (range, 26-5000 nM). In contrast to tumor cell lines, the GI50 value against T cells isolated from non-diseased donors stimulated ex vivo with IL-2 is 2.435 μM. Growth inhibition correlates with a concentration-dependent accumulation of cells in the G1 phase of the cell cycle. INCB054828 is also a selective kinase inhibitor of the FGFR 1, 2, and 3. In myeloma cell lines, treatment with INCB054329 inhibits expression of c-MYC and induced HEXIM1. In both AML and lymphoma cell lines, INCB054329 induces apoptosis consistent with increased expression of pro-apoptotic regulators. INCB054329 reduces expression of Homologous recombination (HR) components and co-operatively reduces cell growth and increases DNA damage and apoptosis induced by PARPi and cisplatin.