转录增强关联域 (TEAD) PROTAC降解剂的设计,合成和生物评估
Huajie Li1,2,3, Zhiming Ge1,3,4, Kexin Lin5,4
1School of Pharmaceutical Science and Technology, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, 310024, China.
ACS medicinal chemistry letters
|May 15, 2024
概括
研究人员开发了新的TEAD PROTACs,其中化合物27通过降解TEAD蛋白质表现出强大的抗癌活性. 这个新工具专门针对TEAD2,为癌症研究提供新的途径.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 药用化学 医学化学
背景情况:
- 对于器官大小控制至关重要的河马通路在癌症中经常受到调节障碍.
- TEAD转录因子与YAP/TAZ联合激活剂合作,是Hippo通路信号传递的关键媒介.
- 向TEAD蛋白是一种有前途的癌症治疗策略,但与抑制剂相比,TEAD降解剂仍未得到充分研究.
研究的目的:
- 设计和合成新的TEAD降解剂,使用蛋白质溶解向金马 (PROTAC) 技术.
- 评估这些PROTACs在癌细胞中的疗效和选择性.
- 研究这些化合物的潜力,作为研究TEAD生物学的研究工具,特别是TEAD2.
主要方法:
- 通过将泛TEAD抑制剂与CRBN连接物thalidomide结合,合成TEAD PROTACs.
- 在癌症细胞系中合成的化合物的抗增殖活性评估 (例如,NCI-H226).
- 评估TEAD蛋白质降解,CRBN和蛋白酶依赖性以及下游基因表达 (CYR61,CTGF).
- 在Flag-TEADs中进行的降解选择性研究中,转染了293T细胞.
主要成果:
- 一种代表性的TEAD PROTAC,化合物27,对NF2缺乏的NCI-H226细胞表现出强大的抗增殖作用.
- 化合物27诱导了TEAD蛋白的剂量依赖性降解,依赖于CRBN E3结合酶和蛋白酶系统.
- 在NCI-H226细胞中,YAP目标基因CYR61和CTGF的表达被化合物27显著减少.
- 化合物27在转染细胞中显示出与TEAD1,TEAD3和TEAD4相比,对TEAD2的降解强度更大.
结论:
- 化合物27,一种新的TEAD PROTAC,有效降解TEAD蛋白质,并抑制癌细胞的增殖.
- 观察到的TEAD2选择性表明,化合物27是研究TEAD2在生物过程和疾病中的作用的有价值的化学探针.
- 这项研究强调了PROTAC技术在瘤学中开发针对TEAD家族成员的向蛋白质降解剂的潜力.
相关概念视频
Olefin Metathesis Polymerization: Acyclic Diene Metathesis (ADMET)
1.9K
Acyclic diene metathesis polymerization or ADMET polymerization involves cross-metathesis of terminal dienes, such as 1,8-nonadiene, to give linear unsaturated polymer and ethylene. As ADMET is a reversible process, the formed ethylene gas must be removed from the reaction mixture to complete the polymerization process.
Similar to cross-metathesis, ADMET also involves the formation of metallacyclobutane intermediate by [2+2] cycloaddition of one of the double bonds of a terminal diene with...
Similar to cross-metathesis, ADMET also involves the formation of metallacyclobutane intermediate by [2+2] cycloaddition of one of the double bonds of a terminal diene with...
1.9K
The Proteasome
8.6K
Eukaryotic cells can degrade proteins through several pathways. One of the most important amongst these is the ubiquitin-proteasome pathway. It helps the cell eliminate the misfolded, damaged, or unwarranted cytoplasmic proteins in a highly specific manner.
In this pathway, the target proteins are first tagged with small proteins called ubiquitin. A series of enzymes carry out the ubiquitination of the target proteins - E1 (ubiquitin-activating enzyme), E2 (ubiquitin-conjugating enzyme), and E3...
In this pathway, the target proteins are first tagged with small proteins called ubiquitin. A series of enzymes carry out the ubiquitination of the target proteins - E1 (ubiquitin-activating enzyme), E2 (ubiquitin-conjugating enzyme), and E3...
8.6K


