在药物诱导的肝细胞中,通过以N-morpholinoarylimine为基础的(III) 复合物检测线粒体过氧酸盐生物发生
Lingtan Kong1, Ling Wang2, Zixi Zhang1
1Institute of Medical Research, Northwestern Polytechnical University, 127 West Youyi Road, Xi'an, Shaanxi, 710072, China.
Redox biology
|August 7, 2025
概括
一个新的发光 (III) 复合物允许对线粒体中的过氧 (ONOO-) 进行敏感和选择性成像. 这种探测器通过可视化氧化应激来帮助理解肝损伤和疾病病原性.
科学领域:
- 生物医学成像技术 生物医学成像技术
- 化学生物学 化学生物学
- 线粒体研究 线粒体研究
背景情况:
- 过氧酸盐 (ONOO-) 是各种疾病的关键媒介,包括肝损伤,通过诱导氧化应激和线粒体功能障碍.
- 现有的光成像探针对ONOO-受到其他反应性物种的干扰.
- 线粒体ONOO-在肝细胞死亡途径中起着至关重要的作用.
研究的目的:
- 开发一种新型的发光(III) 复合物,用于对线粒体过氧酸盐 (ONOO-) 进行选择性和敏感的成像.
- 通过尽量减少来自其他反应物种的干扰,克服现有探测器的局限性.
- 为了研究线粒体ONOO-在肝损伤模型中的作用.
主要方法:
- 一种具有N-morpholinoarylimine部分的发光(III) 复合物的合成和特征.
- 探测器发光响应的评估,选择性,以及在水性缓冲器中对ONOO-的检测极限.
- 在细胞模型和3D多细胞瘤球体中用于成像外源和内源线粒体ONOO-的探针应用.
主要成果:
- (III) 复合体表现出27倍的发光增强,对ONOO-具有较低的检测极限 (0.65μM).
- 探测器对常见的反应性物种表现出高的选择性.
- 通过NOX-4通路成功地可视化了外源性ONOO-在3D多细胞瘤球体和内源性ONOO-在药物诱导的肝细胞中.
结论:
- 开发的 (III) 复合物是线粒体过氧 (ONOO-) 的敏感和选择性成像的一个有前途的工具.
- 这种探针策略有可能用于诊断肝损伤,并了解亚细胞ONOO-的病理作用.
- 这些发现凸显了定制探头在研究疾病病原发生过程中的反应性物种的有用性.
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