gne 049 GNE-049-91化工仪器网

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更新时间：2019-06-26

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产品活性：GNE-049 是一种高效的选择性 CBP 抑制剂，在 TR-FRET 实验中 IC50 为 1.1 nM。GNE-049 还抑制 BRET 和 BRD4 (1)，IC50 分别为 12 nM 和 4200 nM。

研究领域：Epigenetics

作用靶点：Epigenetic Reader Domain | Histone Acetyltransferase

In Vitro: GNE-049 is selected for further profiling as it has the best balance of liver microsomes (LM) stability, selectivity, and cellular potency GNE-049 has excellent potency in the BRET cellular assay and, in an orthogonal measure of the target engagement, GNE-049 is shown to inhibit the expression of MYC (MV4-11 cell line) with an EC50 of 14 nM.

In Vivo: GNE-049 demonstrates acceptable PK in mouse, rat, dog, and monkey. Determination of potency versus a selection of bromodomains revealed that GNE-049 is selective for CBP/P300 and, importantly, quite selective (3820-fold) over BRD4(1). GNE-049 is further evaluated in a rat single dose (30-250 mg/kg QD) toxicokinetic study. Adverse central nervous system (CNS)-related signs (e.g., marked hyperactivity and vocalization) are observed in several of the rats at the 250 mg/kg dose level. Furthermore, at the 250 mg/kg dose level, the ratio of the unbound drug concentration in brain to unbound drug concentration in plasma (Kp,uu) 3 h post dose is determined to be 0.43, indicating that GNE-049 is penetrating into the CNS and potentially resulting in the observed toxicity.

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