EZH2-IN-4

EZH2-IN-4 is an orally active, potent EZH2 inhibitor with IC50s of 0.923 nM and 2.65 nM against wild type (WT) 5-membered (5-mer) EZH2 and mutant 5-mer EZH2, respectively. EZH2-IN-4 has anti-cancer activity[1].

Research Areas >> Cancer

Signaling Pathways >> Epigenetics >> Histone Methyltransferase

WT 5-mer EZH2:0.923 nM (IC50)

mut 5-mer EZH2:2.65 nM (IC50)

EZH2-IN-4 (example 38) shows a cell H3K27me3 IC50 of 0.00973 nM in Karpas-422 (EZH2 Y641N) cells[1]. EZH2-IN-4 shows an IC50 of 10.1 nM in Plate Kj«pas-422 cells[1]. EZH2-IN-4 inhibits the proliferation of ovarian cancer cell lines (COV-434, TOV-21G, TOV-112D, A2780, Caov-3, OVCAR3; IC50s=0.02-8.6 μM) and has no effect on SKOV3, HeyA8, HEC59 cell (IC50>20 μM)[1].

EZH2-IN-4 (example 38; oral gavage; 15 mpk; BID) results in 73% inhibition of tumor methylation in the Karpas-422 xenograft model[1]. EZH2-IN-4 (po; 50 mpk; twice a day; pretreatment for 5 days; followed by co-administration with gemcitabine plus cisplatin for at least 23 additional days) significant inhibits A2780 tumor growth in A2780 xenograft model[1].

[1]. Esteban DOMINGUEZ, et al. Inhibitors of ezh2. WO2017035060A1.