针对瘤向蛋白质降解的生物正方位激活PROTAC的合理设计
Tao Bi1,2, Pan Liang1,2, Yanan Zhou1,2
1National Traditional Chinese Medicine Clinical Research Base and Drug Research Center of the Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Chunhui Road, Luzhou 646000, China.
Journal of medicinal chemistry
|October 23, 2023
概括
生物正方位激活前药物 (BT-PROTACs) 提供了一种控制蛋白质降解的新方法. 这种策略使用一种可以在瘤组织中特别激活的前药物,减少全身毒性.
科学领域:
- 生物化学 生物化学
- 化学生物学 化学生物学
- 药物发现 药物发现 药物发现
背景情况:
- 蛋白质分解向嵌合体 (PROTAC) 技术可以精确控制细胞内蛋白质水平.
- 系统性毒性是PROTACs的开发和应用的一个重要限制.
- 开发控制PROTAC活动的策略对于治疗进步至关重要.
研究的目的:
- 为控制PROTAC活性开发一种生物正方位激活前药物 (BT-PROTAC) 策略.
- 为了证明使用生物对等化学来调节 PROTAC 功能的可行性.
- 研究BT-PROTACs在特定组织中针对蛋白质降解的潜力.
主要方法:
- 在PROTAC分子MZ1中引入一个有反应性的转环氧烯分子,以制造BT-PROTAC前药物.
- 在体外激活BT-PROTAC使用四素化合物BODIPY-TZ.
- 在瘤组织中选择性BRD4蛋白降解的体内评估,使用瘤向的四素化合物 (IR808-TZ).
主要成果:
- 开发的BT-PROTAC在没有激活的情况下对降解BRD4蛋白质是不活跃的.
- 在体外研究证实,BODIPY-TZ可以激活BT-PROTAC.
- 在瘤组织中使用瘤向的IR808-TZ实现了BRD4蛋白的选择性降解,证明了空间控制.
结论:
- 生物正向可激活前药物策略提供了一种新的方法来精确控制PROTAC活动.
- 这种方法有效地减轻了与传统PROTACs相关的全身毒性.
- 该BT-PROTAC战略对向蛋白质降解疗法具有前景,并且可以扩展到其他蛋白质向.
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