发现二衍生物作为BRD4 (BD1) 选择性抑制剂
Xue-Peng Qiao1, Xue-Ting Wang1, Shuai Wang1
1School of Pharmacy & Collaborative Innovation Center for Northwestern Chinese Medicine, Lanzhou University, Lanzhou 730000, China.
Bioorganic & medicinal chemistry
|May 15, 2024
概括
研究人员开发了新型的英多尔-2-衍生物,作为odomain蛋白4 (BRD4) BD1.1.的选择性抑制剂. 化合物21r具有强大的抗瘤活性,具有低毒性,具有治疗白血病的潜力.
科学领域:
- 药用化学 医学化学
- 分子生物学分子生物学
- 在瘤学瘤学.
背景情况:
- odomain蛋白4 (BRD4) 与瘤发育有关.
- 现有的泛BRD4抑制剂会导致剂量限制性毒性和血小板减少.
- 选择性抑制BRD4域 (BD1或BD2) 是一个治疗目标.
研究的目的:
- 设计和合成新型的二衍生物作为选择性BRD4-BD1抑制剂.
- 评估这些化合物的抗瘤和抗扩散活性.
- 确定一种具有强大和选择性的BRD4-BD1抑制剂,其毒性降低.
主要方法:
- 对药物设计进行对接引导优化.
- 印二衍生物的合成.
- 在体外评估BRD4抑制和抗扩散活动.
- 对正常细胞的毒性评估.
- 涉及c-Myc表达,细胞循环和亡的机制研究.
主要成果:
- 化合物21r表现出强大的BRD4抑制活性,与BD2 (IC50 = 313 nM) 相比,对BD1域 (IC50 = 41 nM) 的强度更高.
- 化合物21r对白血病 (HL-60,MV-4-11) 和结肠癌 (HT-29) 细胞系 (IC50s从0.78到5.57μM) 具有显著的抗扩散作用.
- 对正常的GES-1细胞观察到低毒性,并通过降低c-Myc表达的调节,在MV-4-11细胞中诱导了21r化合物诱导的亡和细胞循环停止.
结论:
- 化合物21r是一种强效和选择性的BRD4-BD1抑制剂.
- 化合物21r具有显著的抗癌特性和低毒性.
- 化合物21r显示出治疗白血病和其他由BRD4驱动的癌症的治疗潜力.
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