通过小分子降解剂对特定TEAD类型的有针对性的降解
Hui Chen1, Artem Gridnev2,3, Netanya Schlamowitz2,4
1Department of Medicinal Chemistry, College of Pharmacy, University of Florida, Gainesville, FL, 32610, USA.
Heliyon
|September 27, 2024
概括
新型的PROTAC分子HC278特别准并降解TEAD1和TEAD3,这些关键蛋白质与癌症有关. 这一发现为研究TEAD功能和开发TEAD驱动疾病治疗方法提供了一个新的化学工具.
科学领域:
- 分子生物学分子生物学
- 生物化学 生化学
- 在瘤学瘤学.
背景情况:
- 河马通路的下游效应因子,TEAD转录因子 (TEAD1-4) 和它们的协同激活剂YAP/TAZ,在许多人类癌症中被过度激活.
- TEAD1-4异型在发育和疾病中具有不同的作用,使异型特异性向成为一种有价值的战略.
研究的目的:
- 开发和表征一种新型的PROTAC (蛋白质溶解向仿真体) 分子HC278,用于选择性降解TEAD转录因子.
- 研究HC278在癌细胞中的疗效和机制以及其作为治疗的潜力.
主要方法:
- 合成和描述的PROTAC分子HC278.8.
- 蛋白质组分析以评估蛋白质降解的选择性.
- 使用中瘤细胞系进行细胞增殖测定.
- 涉及CRBN和蛋白酶体系统的机制研究.
- RNA测序和基因组丰富分析 (GSEA).
主要成果:
- 在低纳米分子度下,HC278选择性降解TEAD1和TEAD3,对TEAD2和TEAD4.4的影响较弱.
- 蛋白质组分析证实了在>6000种蛋白质中对TEAD1和TEAD3降解的高选择性.
- HC278抑制了YAP-依赖性间皮瘤细胞 (NCI-H226) 的增殖.
- 由HC278降解TEAD涉及CRBN和蛋白酶体系统.
- HC278治疗显著降低了YAP特征基因的调节 (例如CTGF,CYR61,ANKRD1).
结论:
- HC278是一种强大而有选择性的化学工具,用于降解TEAD1和TEAD3.
- 这种PROTAC分子有效地抑制了由YAP驱动的癌细胞增殖.
- HC278为开发针对TEAD1/3.3驱动病理的向治疗提供了有价值的化合物.
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