通过共价对接发现素向eIF4E抑制剂
Journal of the American Chemical Society
|February 28, 2020
概括
研究人员开发了针对真核转化启动因子4E (eIF4E) 的新型共价抑制剂,重点关注氨酸残留物. 通过抑制细胞生长和转移的关键蛋白质,
科学领域:
- 生物化学
- 分子生物学
- 医学化学
背景情况:
- 欧核细胞转化启动因子4E (eIF4E) 结合mRNA5结构,促进对癌症进展至关重要的蛋白质的转化.
- eIF4E是很难的药物标,现有的抑制剂往往缺乏细胞透性.
- 共价抑制剂为克服eIF4E向挑战提供了一个有希望的策略.
研究的目的:
- 为真核转化启动因子4E (eIF4E) 开发一种新的共价抑制剂.
- 克服现有的eIF4E抑制剂的局限性,特别是它们的细胞透性.
- 建立用共价配体向氨酸残留物的一般计算策略.
主要方法:
- 在eIF4E上使用共价对接方法, 针对lysine残留物, 特别是Lys162.
- 使用"按需制作"虚拟库来识别抑制剂.
- 合成并描述了一系列基于共晶结构的甲化合物 (2至12).
主要成果:
- 鉴定出亚利硫化物是eIF4E的强有力的共价抑制剂.
- 开发了2至12的化合物,代表了第一个具有细胞活性的共价eIF4E抑制剂.
- 验证了一种用于设计选择性素向的共价配体的计算方法.
结论:
- 开发的共价抑制剂为细胞环境中急性失活eIF4E提供了一种新工具.
- 计算策略提供了一种可通用的方法,用于创建选择性素向的共价配体.
- 这项研究通过抑制eIF4E介导的翻译,为开发向癌症治疗开辟了新的途径.
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