发现了针对心力衰竭的药物,该药物向肌结合蛋白C
Thomas A Bunch1, Piyali Guhathakurta2, Andrew R Thompson2
1Department of Cellular & Molecular Medicine, University of Arizona, Tucson, Arizona, USA.
The Journal of biological chemistry
|October 21, 2023
概括
研究人员发现了调节心脏MyBP-C (cMyBP-C) 与actin和myosin相互作用的小分子. 这些化合物显示出开发新的心力衰竭 (HF) 疗法的潜力,通过准cMyBP-C功能.
科学领域:
- 生物化学 生物化学
- 心血管生物学 心血管生物学
- 药理学 药理学是指药理学的学科.
背景情况:
- 心脏MyBP-C (cMyBP-C) 通过与actin和myosin相互作用来调节心肌收缩性.
- 降低cMyBP-C酸化与心力衰竭 (HF) 有关,在HF模型中具有心脏保护作用.
- 调节cMyBP-C相互作用为HF提供了一个治疗策略.
研究的目的:
- 识别与cMyBP-C结合并改变其与actin或myosin的相互作用的小分子.
- 为发现cMyBP-C调制器建立一个高通量选 (HTS) 平台.
- 为新型HF药物开发铺平道路,针对cMyBP-C.
主要方法:
- 在两个互补的HTS试验中利用了用标记的actin和cMyBP-C片段 (cC0-C2) 来检测光寿命 (FLT).
- 使用Förster共振能量转移 (FRET) 来测量cMyBP-C与actin之间的结合.
- 评估了化合物直接与cC0-C2结合,并评估了酸化/非酸化形式的特异性和与骨MyBP-C.交叉反应性的特异性.
主要成果:
- 成功建立了HTS测定,以发现准cMyBP-C.的小分子.
- 确定了与cMyBP-C结合并调节其与actin相互作用的化合物.
- 化合物的子集影响了肌纤维细胞的ATPase活性,表明了功能影响.
结论:
- 证明了发现cMyBP-C-actin/myosin相互作用的小分子调节器的可行性.
- 这些发现支持cMyBP-C作为心力衰竭的可行药物标.
- 开发的HTS平台可以加速识别新型HF治疗方法.
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