通过CAP组修改改善HDAC6抑制剂的药理学特征
Olasunkanmi O Olaoye1,2, Fettah Erdogan1,2, Maria Gracia-Hernandez3
1Department of Chemical and Physical Sciences, University of Toronto Mississauga, 3359 Mississauga Rd N., Mississauga, Ontario L5L 1C6, Canada.
Journal of medicinal chemistry
|August 27, 2025
概括
优化基于酸 (HA) 的HDAC抑制剂的上限组显著改善了药理动力学特征. 在临床前模型中,同类药物14显示出增强的血度和强烈的瘤生长抑制.
科学领域:
- 医学化学
- 药理学
- 结构生物学
背景情况:
- 基于酸 (HA) 的基因脱乙酶 (HDAC) 抑制剂往往表现出较差的药理动力学 (PK) 特性,阻碍了它们的治疗应用.
- 在 HDAC 抑制剂的有效性和选择性方面, HDAC 抑制剂的上限组起着至关重要的作用.
研究的目的:
- 通过对限组的修改来增强选择性HDAC6抑制剂TO-317的PK概况.
- 产生和评估基于HA的新型HDAC抑制剂,以改善体内性能.
主要方法:
- 合成和表征26种具有多种顶部组的TO-317类型.
- 评估HDAC6的结合亲和力和选择性.
- 进行X射线晶体检查以确认关键的相互作用.
- 在小鼠中进行的药理动力学研究和在黑色素瘤模型中进行的临床前疗效测试.
主要成果:
- 与TO-317相比,具有2- 二硫胺封顶的同类药物显示血度增加了120倍.
- 结构分析证实了关键键的保存.
- 在小鼠黑色素瘤模型中,同类药物14实现了56%的瘤生长抑制,没有观察到毒性.
结论:
- 提高基于HA的HDAC抑制剂的PK概况是一种有效的策略.
- 类似物14是进一步临床前和临床开发的有希望的候选物.
- 增强的HDAC抑制剂有可能用于癌症治疗.
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