针对TRIM28-EZH2蛋白-蛋白界面与囊反应共价抑制剂:癌症治疗的计算蓝图
Ibrahim Oluwatobi Kehinde1, Vuyisa Mzozoyana2, Sizwe J Zamisa2
1Molecular Bio-Computation and Drug Design Laboratory, School of Health Sciences, University of KwaZulu-Natal, Durban, South Africa.
Chemistry & biodiversity
|January 8, 2026
概括
异常的蛋白质-蛋白质相互作用驱动癌症. 这项研究确定了向TRIM28-EZH2复合体的共价抑制剂,这是瘤进展的关键驱动因素,提供了一种新的治疗策略.
科学领域:
- 在瘤学瘤学.
- 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:
- 异常的蛋白质-蛋白质相互作用 (PPI) 在癌症中至关重要,通过转录抑制和表观遗传沉默促进瘤生长.
- TRIM28-EZH2相互作用保持抑制色素,有助于瘤发生.
研究的目的:
- 为了建模TRIM28-EZH2复合体,并识别针对它们接口的小分子.
- 探索共价抑制作为对抗瘤性PPI的策略.
主要方法:
- 蛋白质-蛋白质对接被用来建模TRIM28-EZH2复杂结构.
- 一个聚焦氨酸的共价抑制剂库被选.
- 分子动力学模拟评估了化合物的稳定性和结合性.
主要成果:
- 在TRIM28的RBCC域和EZH2的PRC2域之间确定了一个稳定的接口.
- 发现了四种共价抑制剂,其中化合物C87显示出最好的结合自由能量 (-57.2 kcal/mol).
- 在模拟过程中,C87化合物表现出稳定的相互作用.
结论:
- 协同抑制是一种有希望的策略,可以破坏致癌的TRIM28-EZH2复合体.
- 针对这种PPI可以恢复瘤抑制基因表达,并抑制癌症的进展.
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