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针对自-NAD轴可以在尼曼-皮克型C1疾病模型中保护细胞死亡
Tetsushi Kataura1,2, Lucia Sedlackova3,4, Congxin Sun5
1Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, NE4 5PL, UK. tkataura@md.tsukuba.ac.jp.
Cell death & disease
|May 31, 2024
概括
损伤的自和尼古丁胺胺二核酸 (NAD) 枯竭导致尼曼-皮克型C1疾病中的细胞死亡. 切莱科克西布和记忆剂恢复了自,NAD水平和细胞活力,提供了治疗潜力.
科学领域:
- 神经科学是一个神经科学.
- 细胞生物学 细胞生物学
- 生物化学 生物化学
背景情况:
- 自功能受损导致蛋白质积聚和细胞死亡,与疾病有关.
- 呼吸细胞中自的丧失耗尽了尼古丁胺氨酸二核酸 (NAD) 池,导致代谢崩和细胞死亡.
- 尼曼-皮克型C1 (NPC1) 疾病是一种神经退行性溶酶体储存障碍,自功能受损.
研究的目的:
- 为了研究自-NAD轴在NPC1疾病发病过程中的作用.
- 在NPC1疾病模型中确定恢复细胞功能和活力的治疗策略.
主要方法:
- 在NPC1细胞模型中评估NAD水平的代谢分析.
- 化学查以识别自活化药物.
- 评估自流量,线粒体功能和细胞活力.
- 在NPC1患者纤维细胞和诱导多能干细胞 (iPSC) 衍生的皮质神经元中测试药物疗效.
主要成果:
- NPC1细胞表现出缺陷的自流,受损的线粒细胞吸收和随后的NAD池耗尽.
- 在NPC1细胞中,NAD枯竭导致线粒体脱极化和细胞死亡.
- 切莱科西布和美曼丁被确定为FDA批准的药物,可激活自,恢复NAD水平,并改善NPC1细胞活力.
- 自或NAD前体补充剂的药理救援改善了患者衍生的细胞和神经元中的NAD水平和活力.
结论:
- 自-NAD轴是NPC1疾病中细胞死亡的关键机制.
- 针对自-NAD轴为NPC1疾病提供了一个有前途的治疗策略.
- 研究结果表明,与其他涉及自功能障碍的神经退行性疾病有潜在的相关性.
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