发现了调节AP-1转录因子ΔFOSB的DNA结合和释放的小分子和可用药物的槽
Sean McNeme1, Yun Young Yim2, Ashwani Kumar1
1Department of Pharmacology and Toxicology, University of Texas Medical Branch, Galveston, Texas, 77555, USA; Sealy Center for Structural Biology and Molecular Biophysics, University of Texas Medical Branch, Galveston, Texas, 77555, USA.
The Journal of biological chemistry
|December 24, 2025
概括
研究人员在ΔFOSB蛋白上发现了一个新的可服药部位,这是成和慢性疾病的关键因素. 这里结合的小分子可以抑制 ΔFOSBB 的作用.
科学领域:
- 神经科学是一个神经科学.
- 分子生物学分子生物学
- 药理学 药理学是指药理学的学科.
背景情况:
- 德尔塔B (ΔFOSB) 是一种转录因子,与成和等慢性疾病有关.
- 包括ΔFOSB在内的AP-1转录因子是具有挑战性的药物标,因为缺乏定义的结合口袋.
研究的目的:
- 为了确定 ΔFOSB 上的新药可用位点,用于治疗干预.
- 探索 ΔFOSB 和相关的 bZIP 转录因子的小分子抑制策略.
主要方法:
- 在DNA结合裂外的ΔFOSB上发现了一个新的小分子结合点.
- 通过使用含硫酸分子的诱导适合机制进行化合物结合的表征.
- 在体内评估化合物JPC0661对ΔFOSB基因组占用量的影响,使用CUT&RUN测序.
主要成果:
- 在ΔFOSB上确定了一个新的全位,容纳小分子.
- 硫酸化合物与这个部位结合,诱导构造变化,损害DNA结合.
- 在体内给药JPC0661减少了大约60%的FOSB与DNA的结合.
结论:
- 小分子可以通过准DNA结合裂外的位点来调节AP-1转录因子DNA结合.
- 鉴定的可药物沟为开发 ΔFOSB 和其他 bZIP 因子的选择性抑制剂提供了一种战略.
- 这项工作提出了一种新的方法,用于设计小分子治疗方法,用于ΔFOSB介导的疾病.
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