开发具有双重共价联结体的STING降解剂
Miki Nakamura1, Nobumichi Ohoka2, Norihito Shibata3
1Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Division of Pharmaceutical Science of Okayama University, 1-1-1, Tsushimanaka, Kita 700-8530, Japan; Division of Organic Chemistry, National Institute of Health Sciences, 3-25-26, Tonomachi, Kawasaki, Kanagawa 210-9501, Japan.
Bioorganic & medicinal chemistry letters
|February 26, 2024
概括
研究人员开发了一种新的STING降解剂,一种低分子量化合物,用于治疗自身免疫性疾病. 这种新的降解剂在比现有的STING PROTACs更低的度下表现出持续的活动.
科学领域:
- 免疫学 免疫学 免疫学
- 分子生物学分子生物学
- 药物发现 药物发现 药物发现
背景情况:
- 干扰素基因刺激器 (STING) 是先天免疫信号传递中的关键受体,主要位于内 плазма网膜中.
- 目前正在研究用于治疗自身炎症和自身免疫性疾病的向性药物,包括抑制剂和向蛋白质分解的仿真体 (PROTACs).
研究的目的:
- 为了设计一种新的,低分子量STING降解剂,使用最小的共价柄.
- 为了评估与现有的STING PROTACs相比,设计的STING降解剂的有效性.
主要方法:
- 开发一种新的共价性STING降解剂,将最小的共价柄作为E3酶连接体.
- 在不同度和时间点对工程化合物 (Degrader 2) 的STING降解活性进行评估.
- 对Degrader 2对已知刺痛抗体 (SP23) 的疗效进行比较分析.
主要成果:
- 设计的STING降解剂与STING和E3结合酶共同结合.
- 降解剂2表现出持续的STING降解 (大约75%在48小时内3μM).
- 与STING PROTAC SP23.23相比,降解剂2在较低度下表现出更高或可比的降解活性.
结论:
- 开发的低分子量STING降解剂为自身炎症和自身免疫性疾病提供了一个有前途的治疗策略.
- 这种新型化合物代表了针对STING的治疗方法的潜在进步,显示了增强的降解效率.
- 对这种STING降解剂的进一步研究可能会导致针对免疫相关疾病的更有效的治疗方法.
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