通过协调化学进行结合优化:来自超硬金属复合物的CXCR4化学因受体对手
Abid Khan1, Gary Nicholson, John Greenman
1Department of Chemistry and Centre for Biomedical Research, University of Hull, Hull, HU6 7RX, UK.
Journal of the American Chemical Society
|February 24, 2009
概括
一种新的铜(II) 双宏环化合物与Plerixafor相比,对CXCR4受体具有优越的结合. 这种金属药物表现出增强的抗HIV功效和长时间的受体相互作用.
科学领域:
- 药用化学 医学化学
- 结构生物学 结构生物学
- 病毒学 病毒学
背景情况:
- CXCR4化学受体是艾滋病毒进入的关键标,并与各种癌症有关.
- AMD3100 (Plerixafor) 是已知的CXCR4抗剂,但在结合亲和力和持续时间方面存在局限性.
- 开发具有改进性质的新型抗剂对于治疗进步至关重要.
研究的目的:
- 设计和合成一种新的含铜(II) 的双宏环化合物,向CXCR4受体.
- 评估该新型化合物的结合性和抗艾滋病毒功效.
- 阐明金属药物与CXCR4受体之间的分子相互作用.
主要方法:
- 一种新型铜 (II) 双宏环抗体的合成.
- 使用抗CXCR4抗体进行具有约束力的竞争测试.
- 在体外抗HIV功效测试 (EC50测定).
- 进行X射线结晶学研究.
主要成果:
- 与AMD3100相比,新型铜 (II) 化合物表现出增强的结合亲和力和与CXCR4受体的长时间相互作用.
- 该化合物在体外表现出显著的抗HIV活性,EC50为4.3nM.
- X射线结构分析揭示了与氨基酸侧链的特定协调相互作用,由刚性化剂单元促进.
结论:
- 开发的铜II) 双宏环抗体代表了HIV感染的有希望的治疗候选者.
- 优化的化剂设计增强了金属药物与CXCR4受体的结合.
- 对这种类化合物的进一步调查可能会产生更好的抗病毒药物.
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