尼古丁胺胺酸基转移酶 阳性 体调节剂 减弱神经元氧化应激
Jesse Gordon-Blake1, Kiira Ratia1,1, Victoria Weidig1
1Department of Pharmaceutical Sciences, Research Resources Center, Department of Chemistry, and Department of Anatomy and Cell Biology, University of Illinois at Chicago, Chicago, Illinois 60612, United States.
ACS medicinal chemistry letters
|February 14, 2024
概括
通过使用新型NAMPT阳性全调节剂 (N-PAMs) 提高尼古丁胺氨酸二核酸 (NAD+) 水平,可以抵消氧化应激. 这些N-PAMs在神经退行性疾病模型中减轻反应性氧物种 (ROS) 的承诺.
科学领域:
- 生物化学 生化学
- 神经科学是一个神经科学.
- 药理学 药理学是指药理学的学科.
背景情况:
- 氧化应激与衰老和神经退行性疾病有关.
- 提高尼古丁胺氨酸二核酸 (NAD+) 水平是一种潜在的治疗策略.
- 尼古丁胺胺酸基转移酶 (NAMPT) 活性是NAD+增强的目标.
研究的目的:
- 为了识别和表征新的NAMPT阳性全调节剂 (N-PAMs).
- 为了评估N-PAMs在增加NAD+水平方面的有效性.
- 评估N-PAMs在减轻神经元细胞中氧化应激的潜力.
主要方法:
- 新型N-PAMs的识别.
- 同结晶以确认N-PAM在NAMPT上的结合点.
- 在人类THP-1细胞中测量NAD+水平.
- 在TNFα和谷氨酸压力HT-22神经元细胞中对活性氧物种 (ROS) 缓解的评估.
主要成果:
- 发现了新的N-PAMs,其中一种在THP-1细胞中增加了NAD+水平1.88倍.
- 在HT-22细胞中,N-PAMs有效地减弱了瘤亡因子α (TNFα) 诱导的ROS.
- 最有效的N-PAM完全减轻了在谷氨酸压力HT-22细胞中的ROS升高,这是刺激毒性的模型.
结论:
- N-PAMs可以增加NAD+水平,并减轻压力神经元细胞中的ROS.
- 这项研究提供了N-PAMs减轻TNFα和谷氨酸压力神经元中的ROS的第一个证据.
- 对于神经退行性疾病来说,N-PAMs是一个有前途的治疗途径.
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