针对Bcr-Abl的合式卷轴抑制剂的计算建模:针对CML的治疗策略
Maria Carolina P Lima1, Braxten D Hornsby2, Carol S Lim2
1Department of Medicinal Chemistry, University of Utah, Salt Lake City, Utah 84112, United States.
bioRxiv : the preprint server for biology
|November 28, 2023
概括
研究人员开发了一种新一代紧型抑制剂 (CPP-CCmut3-st),以向Bcr-Abl瘤蛋白,这是慢性髓性白血病 (CML) 和急性淋巴细胞白血病 (ALL) 的关键驱动因素. 这些改进的抑制剂为治疗Bcr-Abl+白血病提供了增强的稳定性和活性.
科学领域:
- 生物化学 生物化学
- 分子生物学分子生物学
- 在瘤学瘤学.
背景情况:
- 由费城染色体转位产生的Bcr-Abl蛋白驱动CML和ALL,通过作为一个构成性活跃的氨酸激酶.
- 它的致癌活性由Bcr N-终端卷轴-卷轴域 (Bcr-CC) 介导,这是一个关键的治疗标.
- 以前的抑制剂,如CPP-CCmut3,表现出有前途的结果,但遭受了结构不稳定和退化.
研究的目的:
- 设计和表征新一代Bcr-Abl抑制剂,以增强稳定性和活性.
- 通过结合碳化合物基质来解决以前的CPP-CCmut3结构的局限性.
- 利用计算建模和模拟来高效地对领先候选人进行in silico选.
主要方法:
- 计算机建模和生物分子模拟被用来设计和表征单级和双级CPP-CCmut3st候选者.
- 进行了结合能量和形状稳定性的in silico评估.
- 模拟了六个系统,包括全长,截断和CPP变体 (线性与周期性),以评估抑制剂的影响.
主要成果:
- 识别带单级和双级CPP-CCmut3-st候选物,具有改进的结构稳定性.
- 计算分析提供了对N端 CPP 修改和截断对模型稳定性的影响的见解.
- 这项研究建立了有效的in silico选和下一代抑制剂的表征的管道.
结论:
- Stapled 抑制剂是开发针对 Bcr-Abl. 的更稳定,更有效的治疗方法的有希望的策略.
- 计算建模是加速基药物的设计和优化的一个有价值的工具.
- 鉴定到的主要候选药物需要进一步的实验验证,用于治疗Bcr-Abl+白血病.
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