通过3D药基重定位选活动识别含有新型基蛋白4 (BRD4) 结合物的新型基蛋白4 (BRD4) 结合剂
Ester Colarusso1, Erica Gazzillo1, Eleonora Boccia1
1Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, Italy.
Molecules (Basel, Switzerland)
|September 14, 2024
概括
一个新的3D药模型用于含有odomain的蛋白4 (BRD4) 确定了强大的抑制剂. 这种药物重新定位策略成功地发现了具有高亲和性和选择性的新BRD4结合剂.
科学领域:
- 药用化学 医学化学
- 结构生物学 结构生物学
- 药物发现 药物发现 药物发现
背景情况:
- 含有odomain的蛋白4 (BRD4) 是一个关键的表观遗传调节器,与各种疾病有关.
- 鉴定选择性BRD4抑制剂对于治疗开发至关重要.
- 现有的抑制剂可能缺乏特异性或最佳结合特性.
研究的目的:
- 为BRD4.4开发一个基于3D结构的药模型.
- 利用药物重新定位模型来识别新的BRD4配体.
- 评估已识别的化合物对BRD4.4的亲和力和选择性.
主要方法:
- 使用 (+) -JQ1抑制剂构建基于BRD4的3D结构的药模型.
- 通过药物重新定位,使用药模型对273种不同的化合物进行选.
- 生物物理和生物化学测定以确定结合亲和力 (IC50) 和选择性.
主要成果:
- 为BRD4建立了一个经过验证的3D药模型.
- 六种化合物被证明具有作为BRD4结合剂的潜力.
- 化合物2,5和6对BRD4具有很高的亲和力,IC50值处于低微分子范围.
- 两种化合物对BRD4具有较高的选择性,超过BRD3和BRD9.
结论:
- 基于3D结构的药模型是识别新型BRD4配体的有效工具.
- 使用这种模型重新定位药物成功识别了强效和选择性的BRD4抑制剂.
- 这些已识别的化合物代表了针对BRD4.4的进一步治疗开发的有希望的线索.
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