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通过小分子抑制剂对人类MDM2的N端进行排序
Klaus Michelsen1, John B Jordan, Jeffrey Lewis
1Molecular Structure & Characterization, Amgen, Inc., Thousand Oaks, California 91320, USA.
Journal of the American Chemical Society
|September 21, 2012
概括
新的piperidinone抑制剂破坏了MDM2-p53复合体,恢复了瘤抑制剂p53的功能. 这些强大的癌症治疗药物独特地参与MDM2的N端,提供了新的理性药物设计策略.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 药物发现 药物发现 药物发现
背景情况:
- MDM2-p53蛋白质复合体抑制瘤抑制剂p53,这是癌症发展的关键因素.
- 通过破坏MDM2-p53相互作用来恢复p53功能是癌症治疗的关键策略.
研究的目的:
- 调查皮佩里迪MDM2抑制剂高强度的动力,热力学和结构基础.
- 为了阐明与Nutlins等现有抑制剂相比,piperidinones的结合机制.
主要方法:
- * 抑制剂结合的动力学和热力学分析.
- *X射线晶体学以确定抑制的结构基础.
- * 皮佩里迪农与Nutlin结合和p53相互作用的比较.
主要成果:
- * 皮皮里丁对MDM2-p53相互作用有强烈的抑制作用.
- * 与Nutlins不同的是,piperidinones与正规口袋结合,并与MDM2残留物10-16接触.
- * 皮皮里迪农结合诱导了MDM2的非结构化N终端区域的新型β链形成.
结论:
- * 皮皮里丁是一种具有独特结合方式的新型强效MDM2抑制剂.
- * 在MDM2的N端诱导的结构变化为合理的药物设计提供了新的途径.
- *这一发现通过恢复p53功能,推动了向癌症治疗的发展.
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