I-CBP112

MCE 国际站：I-CBP112

产品活性：I-CBP112是一种特异性和有效的乙酰-赖氨酸竞争性蛋白-蛋白相互作用抑制剂，抑制 CBP/p300 溴结构域，增强 p300 的乙酰化作用。

作用靶点：Histone Acetyltransferase | Epigenetic Reader Domain

In Vitro: I-CBP112 significantly enhances acetylation by p300 at the histone H3K18 and H3K23 sites. I-CBP112 stimulated H3K18ac by ~3-fold, I-CBP112 induced enhances acetylation of these same sites by CBP as well as at H4K5. The EC₅₀’s of activation of I-CBP112 on p300- and CBP-mediated H3K18 acetylation are ~2 μM. Exposure of human and mouse leukemic cell lines to I-CBP112 results in substantially impaired colony formation and induces cellular differentiation without significant cytotoxicity. Exposure of the BioMAP primary cell panel to I-CBP112 results in a unique response on cytokine and marker protein expression.

In Vivo: I-CBP112 significantly reduces the leukemia-initiating potential of mLL-AF9+ AmL cells in a dose-dependent manner in vitro and in vivo. The synergistic effects of I-CBP112 and current standard therapy (doxorubicin) as well as emerging treatment strategies (BET inhibition) provide new opportunities for combinatorial treatment of leukemia and potentially other cancers.

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