心脏热素激活剂CK-963 增加了老鼠的心脏收缩性
Scott E Collibee1, Antonio Romero1, Alexander R Muci1
1Cytokinetics, Inc., 350 Oyster Point Boulevard, South San Francisco, California 94080, United States.
Journal of medicinal chemistry
|March 7, 2024
概括
研究人员发现了CK-963,一种新的心脏激素激活剂. 这种化合物增强心肌收缩而不增加,为心血管疾病提供潜在的益处.
科学领域:
- 心血管药理学心血管药理学
- 生物化学 生物化学
- 分子心脏病学分子心脏病学
背景情况:
- 心脏收缩性对于心血管健康至关重要.
- 现有的内类药物往往会产生副作用,例如水平升高.
- 直接调节心脏类素提供了一个潜在的替代治疗策略.
研究的目的:
- 为了确定心脏托罗宁的新型激活剂.
- 开发一种化合物,可以增强心脏收缩性,而不会增加细胞内.
- 为了评估直接激活心脏类素的药理效应.
主要方法:
- 使用心脏肌纤维细胞ATPase检测的高通量选.
- 生物化学和生物物理测定用于目标验证.
- 鼠心肌细胞和心声回声学研究.
- 异热定位热量计. 异热定位热量计.
主要成果:
- 鉴定出新的心脏激素激活剂 (化合物1和2).
- 化合物CK-963在老鼠心肌细胞和体内表现出强大的内效应,增加了高达95%的分数缩短.
- CK-963与心脏素 (Kd = 11.5 ± 3.2 μM) 直接相互作用,并且缺乏化酶-3抑制.
结论:
- 直接的心脏托波激活是可以实现的,并且在药理上是可处理的.
- CK-963代表了对心力衰竭的有希望的治疗候选者.
- 这种方法可以避免增加细胞内和抑制PDE-3的有害影响.
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