发现Atirmociclib (PF-07220060):一种强效和选择性的CDK4抑制剂
Gary M Gallego1, Cynthia Palmer1, Suvi Orr1
1Oncology Medicinal Chemistry, Pfizer Worldwide Research and Development, La Jolla, San Diego, California 92121, United States.
新的选择性循环素依赖性激酶4 (CDK4) 抑制剂为晚期乳腺癌与减少中性质减退提供了有效的治疗. PF-07220060 (atirmociclib) 通过向CDK4而不是CDK6,从而最大限度地减少副作用,显示出有希望的结果.
科学领域:
- 在瘤学瘤学.
- 药理学 药理学是指药理学的学科.
- 药用化学 医学化学
背景情况:
- 循环素依赖性激酶4和6 (CDK4/6) 抑制剂对激素受体阳性 (HR+),人体表皮生长因子受体2-阴性 (HER2-) 先进或转移性乳腺癌有效.
- 中性是当前CDK4/6抑制剂的常见副作用,与CDK6在血液形成中的作用有关.
研究的目的:
- 发现基于氨基胺的新型选择性CDK4抑制剂.
- 开发强效的CDK4抑制剂,提高安全性,特别是减少中性质.
主要方法:
- 使用基于结构的药物设计和分子动力学模拟.
- 基于效率的优化策略 (LipE和LipMetE) 引导了抑制剂的开发.
- 进行了体外和体内研究,以评估功效,选择性和疗效.
主要成果:
- PF-07220060 (atirmociclib) 被确定为一种高度强效和选择性的CDK4抑制剂.
- 阿提尔摩西克利布对CDK4比CDK6.6具有很高的选择性.
- 该化合物对中性粒细胞的影响最小,在小鼠异种移植模型中显著有效.
结论:
- 选择性CDK4抑制是HR+/HER2-转移性乳腺癌的可行的治疗策略.
- 由于其选择性,Atirmociclib代表了一个有前途的治疗候选药物,其安全性概况得到了改善.
- 专门针对CDK4,可以克服与双重CDK4/6抑制剂相关的中性质减退.
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