作为抗疟疾药物的一系列基于pyrrole的pfpkg抑制剂的结构-活性关系
John A Gilleran1, Kutub Ashraf2, Melvin Delvillar2
1Rutgers Molecular Design and Synthesis Core, Office for Research, Rutgers University, 610 Taylor Road, Piscataway, New Jersey 08854, United States.
Journal of medicinal chemistry
|February 19, 2024
概括
开发了针对Plasmodium falciparum cGMP依赖蛋白激酶 (PfPKG) 的新型疟疾药物. 定义了醇抑制剂的结构-活性关系,显示了阻断寄生虫生命周期阶段的潜力.
科学领域:
- 药用化学 医学化学
- 寄生虫学的寄生虫学
- 结构生物学 结构生物学
背景情况:
- 疟疾控制需要针对Plasmodium falciparum的新型抗疟疾药物.
- 虫的cGMP依赖蛋白激酶 (PfPKG) 是一个经过验证的药物标.
- 抑制PfPKG可以破坏寄生虫生命周期的多个阶段.
研究的目的:
- 为了定义针对 PfPKG 的烯烯系列的结构-活性关系 (SAR).
- 探索化学多样性,并确定一个理想的核心支架PfPKG抑制剂.
- 开发一种新的药物,用于治疗疟疾.
主要方法:
- 针对PfPKG的pyrrole系列的定义SAR.
- 对复合PfPKG和人类PKG进行了体外评估,以获得选择性.
- 在P. berghei sporozoites和P. falciparum血液阶段评估了多阶段的抗寄生虫活性.
- 使用转基因寄生虫确定细胞特异性.
- 解决了PfPKG与抑制剂结合的晶体结构.
- 采用计算建模用于SAR分析和领先优化.
主要成果:
- 确定了抑制PfPKG的pyrrole系列的SAR.
- 在人类PKG上对寄生虫酶的选择性被证明.
- 展示了针对不同类型的寄生虫的多阶段抗寄生虫活性.
- 确定了关键的药理和理想的核心支架.
- 通过一种抑制剂获得了PfPKG的共晶结构.
- 基于结构和计算数据,开发了一个合理的优化策略.
结论:
- 基于Pyrrole的化合物显示出作为抗疟疾药物向PfPKG的前景.
- 了解SAR和抑制的结构基础有助于合理的药物设计.
- 对于开发新的多阶段抗疟疾疗法,pfpkg仍然是一个可行的目标.
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