EPZ011989 is also a specific EZH2 inhibitor with a >15-fold selectivity over EZH1 and >3000-fold selectivity relative to the Ki of 20 other histone methyltransferases (HMTs) tested. EPZ011989 reduces cellular H3K27 methylation in the Y641F, mutant-bearing human lymphoma cell line, WSU-DLCL2, with an IC50 below 100 nM. EPZ011989 demonstrates significant tumor growth inhibition in a mouse xenograft model of human B cell lymphoma.
|Cell lines||WSU-DLCL2 cells|
|Preparation method||For assessment of cell proliferation and viability, exponentially growing cells are plated, in triplicate, in 96-well plates. Cells are incubated with increasing concentrations of EPZ011989. Viable cell number is determined every 3-4 days for up to 11 days using the Guava Viacount assay.|
|Incubation time||0-11 days|
|Animal models||SCID mice|
|Formulation||0.5% methyl cellulose and 0.1% Tween-80|
|Dosages||250 and 500 mg/kg|
|Body Surface Area (m2)||0.007||0.025||0.15||0.05||0.02||0.5|
|Animal A (mg/kg) = Animal B (mg/kg) multiplied by||Animal B Km|
|Animal A Km|
For example, to modify the dose of resveratrol used for a mouse (22.4 mg/kg) to a dose based on the BSA for a rat, multiply 22.4 mg/kg by the Km factor for a mouse and then divide by the Km factor for a rat. This calculation results in a rat equivalent dose for resveratrol of 11.2 mg/kg.
|Solubility||DMSO: ≥ 10 mg/mL|
EPZ011989, A Potent, Orally-Available EZH2 Inhibitor with Robust in Vivo Activity.
Campbell JE, et al. ACS Med Chem Lett. 2015 Mar 4;6(5):491-5. PMID: 26005520.
|Related Histone Methyltransferase Products|
WDR5-0103 is a small molecule that binds a peptide-binding pocket on WDR5 (Kd = 450 nM), inhibiting the catalytic activity of the MLL core complex in vitro (IC50 = 39 µM).
MS023 is a potent and selective, cell-active inhibitor of type I PRMTs with IC50s of 4-119 nM.
BIX-01294 is a potent chemical inhibitor of G9a methyltransferase that catalyzes the mono-and di-methylation of the lysine 9 residue of histone H3, with IC50 of 1.9 μM.
SGC0946 is a highly potent and selective DOT1L methyltransferase inhibitor with IC50 of 0.3 nM; selectively kill mixed lineage leukaemia cells.
UNC0642 is a potent, selective inhibitor of histone methyltransferases G9a/GLP with IC50s less than 2.5 nM for G9a and GLP and shows more than 300-fold selective for G9a and GLP over a broad range of kinases, GPCRs, transporters, and ion channels.
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