酶可激活蛋白解的模块化开发,针对选择性蛋白降解和向癌症的奇默体
Yanchi Chen1,2, Lina Zhang1, Lincheng Fang1
1State Key Laboratory of Chemical Oncogenomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen 518055, China.
JACS Au
|July 26, 2024
概括
酶可激活蛋白质分解向嵌合体 (PROTACs) 选择性地降解癌细胞中的蛋白质. 这种新的方法尽量减少健康组织中的毒性,提供更安全的癌症治疗方法.
科学领域:
- 生物化学 生物化学
- 药用化学 医学化学
- 在瘤学瘤学.
背景情况:
- 针对蛋白质分解的嵌合体 (PROTACs) 具有治疗潜力,但由于不分青红白的蛋白质降解,在正常组织中具有目标外毒性,面临挑战.
- 开发有针对性的PROTAC对于提高治疗疗效和患者安全至关重要.
研究的目的:
- 为癌症特异性蛋白质降解设计可激活酶的PROTAC,从而减轻健康细胞中的毒性.
- 开发一个模块化平台,使用酶响应链接器创建细胞选择性PROTAC.
主要方法:
- 设计和合成可激活酶的PROTACs,使用酶识别部分和甲基醇基碳酸盐 (MAC) 自焚链接剂.
- 对选择性蛋白质降解在癌细胞与非恶性细胞中的PROTACs的评估.
- 在体内*抗瘤疗效和瘤外毒性的评估.
主要成果:
- 识别MAC单元作为可激活酶的PROTAC的稳定和高效的链接器.
- 由特定的癌症相关酶激活的PROTACs的开发,包括一种可双酶激活的PROTAC.
- 证明了癌细胞中高度选择性的蛋白质降解,强大的*in vivo*抗瘤活性,以及没有瘤外毒性.
- 通过结合各种 PROTAC 和 E3 酶,实现了广泛应用的概念验证.
结论:
- 可酶激活的PROTACs是克服传统PROTACs毒性限制的有希望的策略.
- 这种模块化方法使得有针对性的癌症治疗能够提高选择性和安全性.
- 开发的平台为下一代向治疗的设计开辟了新的途径.
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