在Ras信号通路中的药物重定位中的形状多样性和蛋白质-蛋白质接口
Ahenk Zeynep Sayin1, Zeynep Abali2, Simge Senyuz2
1Department of Chemical and Biological Engineering, College of Engineering, Koc University, Rumeli Feneri Yolu Sariyer, 34450, Istanbul, Turkey.
这项研究提出了一种新的方法,通过分析蛋白质-蛋白质接口来重新利用癌症中的药物. 它通过将药物结合接口与Ras信号通路中的接口相匹配来识别潜在的癌症药物,包括HIV蛋白酶抑制剂.
科学领域:
- 生物化学 生化学
- 药理学 药理学是指药理学的学科.
- 计算生物学 计算生物学
背景情况:
- 拉斯信号通路对于癌症的发展至关重要.
- 药物重定向提供了一个更快的途径,以新的癌症疗法.
- 在蛋白质-蛋白质相互作用中识别新药标是具有挑战性的.
研究的目的:
- 开发用于药物重定向的系统方法,针对Ras途径中的蛋白质-蛋白质接口.
- 根据结构界面相似性,识别FDA批准的药物,这些药物可以根据结构界面相似性重新用于癌症治疗.
主要方法:
- 利用蛋白质数据库 (PDB) 和结构匹配的蛋白质相互作用 (PRISM) 来识别蛋白质-蛋白质接口.
- 包含多种蛋白质构造,以考虑动态和多样性.
- 选FDA批准的药物以结合结构上类似的蛋白质-蛋白质接口.
主要成果:
- 使用PRISM实现了92%的蛋白质-蛋白质相互作用的结构覆盖.
- 鉴定了HIV蛋白酶抑制剂 (tipranavir,indinavir,saquinavir) 对EGFR和ERBB3/HER3接口的潜在结合.
- 建议提普拉纳维尔和印纳维尔可能与EGFR和ERBB2/HER2接口结合,而阿尔茨海默氏症药物可能与RAF1和BRAF接口结合.
结论:
- 拟议的方法有效地通过分析蛋白质-蛋白质接口集群来识别潜在的癌症候选药物.
- 这种方法提供了一种系统的替代方法,用于重新利用现有的药物,而不是以口袋为基础的药物发现.
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