为染色体重塑复合体设计I/IV类基基向降解剂的设计
Huda Zahid1, Jeff P Costello1, Yao Li2
1Department of Chemistry, University of Minnesota, 207 Pleasant St. SE, Minneapolis, Minnesota 55455, United States.
ACS chemical biology
|June 1, 2023
概括
新的向蛋白质降解剂旨在向非BET基,在癌症中至关重要. 基于pyrimidine的分子成功降解了CECR2,这是一个关键的表观遗传标,对未来的癌症治疗有希望.
科学领域:
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
- 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:
- 向蛋白质降解是一种新的治疗策略.
- 已经确立了BET家族原体降解剂,但非BET原体尚未得到充分探索.
- 非BET基因与染色体重塑和瘤发生有关.
研究的目的:
- 设计和合成针对非BET原体的新型小分子 (BPTF,CECR2,BRD9).
- 通过细胞内测试来评估这些降解剂的选择性和有效性.
- 建立第一个CECR2降解剂并评估其降解概况.
主要方法:
- 基于pyridazinone和pyrimidine的异循环的设计和合成.
- 评估出口向量和链接器,以优化降解器.
- 细胞内纳米BRET测定三元复合体的形成和降解.
- 西部涂抹,以评估内源性蛋白质降解.
主要成果:
- 开发了针对I类 (BPTF,CECR2) 和IV类 (BRD9) 类动物的新型pyridazinone和pyrimidine支架.
- 证明了细胞透性,三元复合体的形成和原体融合的降解.
- 通过使用基于pyrimidine的类似物,实现了内源CECR2的降解.
- 观察到BPTF受到基于pyridazinone的化合物的有限降解,这表明针对特定目标的挑战.
结论:
- 成功设计和验证了非BET原体的新型小分子降解剂,包括第一个CECR2降解剂.
- 突出了以胺为基础的支架在准CECR2.2方面的潜力.
- 确定BPTF作为一个更具挑战性的降解目标,指导未来的优化工作.
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