GNE-6776 is a potent, non-covalent, selective and orally bioavailable inhibitor of USP7 with IC50 of 1.34 μM and 0.61 μM for full length USP7 and USP7 catalytic domain, respectively.
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GNE-6776 is a potent, non-covalent, selective and orally bioavailable inhibitor of USP7 with IC50 of 1.34 μM and 0.61 μM for full length USP7 and USP7 catalytic domain, respectively.
[1] Lorna Kategaya, et al. Nature. 2017 Oct 26;550(7677):534-538.
Cell experiment: | EOL-1 cells are seeded into 384-well plates 24?h before compound addition. Cells are then incubated with compound (e.g., GNE-6776; 0.003, 0.009, 0.027, 0.082, 0.25, 0.74, 2.22, 6.67, and 20 μM) for 72?h or 120?h before assaying viability. Assays are performed in biological triplicate. Cells are incubated (37°C, 5% CO2) in RPMI-1640, 2.5% FBS (72?h assay) or 5% FBS (120?h assay), and 2?mM glutamine throughout the assay. The reported IC50 and mean viability metrics are as follows: IC50 is the dose at which the estimated inhibition is 50% relative to untreated wells (that is, absolute IC50). The mean viability is calculated[1]. |
Animal experiment: | Mice[1]GNE-6776 is administered at 200?mg/kg (body weight) by oral gavage to female C.B-17 SCID mice, aged 12-16 weeks (n=3 per time point). No randomization is used for DMPK studies. At 0.5, 1, 2, 4, 8 and 24?h post-dose, blood samples are collected by terminal cardiac puncture into anticoagulant tubes (EDTA). Clarified plasma is then transferred to a fresh tube and snap frozen. GNE-6776 plasma concentrations are determined by LC-MS/MS[1]. |
参考文献: [1]. Kategaya L, et al. USP7 small-molecule inhibitors interfere with ubiquitin binding. Nature. 2017 Oct 26;550(7677):534-538. | |