基于结构的发现,发现了一种针对人类多巴胺载体的新型菌抑制剂
Shengzhe Deng1, Haiwei Zhang2, Rongpei Gou1
1Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, China.
Journal of chemical information and modeling
|July 6, 2023
概括
研究人员确定了一种新的全抑制剂,用于人类多巴胺载体 (hDAT),对中枢神经系统疾病至关重要. 这一发现有助于设计针对hDAT的新药,因为它揭示了它的分子机制.
科学领域:
- 结构生物学和计算化学
- 神经科学和药理学是神经科学和药理学.
背景情况:
- 人类多巴胺转运体 (hDAT) 对于调节细胞外多巴胺至关重要,也是中枢神经系统 (CNS) 疾病的关键标.
- 了解hDAT全调节的分子机制对于开发有效的治疗方法至关重要,但仍然难以捉摸.
- 现有的知识差距阻碍了对hDAT的新型全调节器的合理设计.
研究的目的:
- 通过基于结构的方法,探索hDAT在其向内开放的构造中的全位.
- 选显示对hDAT具有全性亲和力的化合物.
- 为了研究已识别的全抑制剂的协同作用.
主要方法:
- 建立了一个hDAT结构模型,基于人类血清素输送器 (hSERT) Cryo-EM结构.
- 采用高斯加速分子动力学 (GaMD) 模拟来识别稳定的中间状态.
- 进行了对酵素化学库的虚拟选,并对已识别的化合物进行了体外检测.
主要成果:
- 在hDAT上确定了潜在的可药物化的全位,以向内开放的形状.
- 发现Z1078601926作为一种新的hDAT全抑制剂,其IC50为0.527μM,当与nomifensine一起使用时.
- 使用GaMD模拟和自由能量分析探索了协同效应的全抑制机制.
结论:
- 这项研究提出了一种基于结构的方法,用于发现hDAT.的新型全调节剂.
- 鉴定到的成功化合物,Z1078601926,可以作为优化的有价值的起点.
- 这些发现证明了所采用的方法论在准其他治疗载体方面具有实用性.
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