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单个光探针对H2O2,NO和H2O2/NO以三组不同的光信号响应
Lin Yuan1, Weiying Lin, Yinan Xie
1State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, PR China.
Journal of the American Chemical Society
|December 14, 2011
概括
研究人员开发了FP-H(2) O(2)-NO,这是第一个单一的光探针,可以同时检测过氧化 (H(2) O(2) 和氧化 (NO). 这个工具有助于理解它们在细胞信号传递和疾病中的作用.
科学领域:
- 生物化学 生物化学
- 分子生物学分子生物学
- 细胞生物学 细胞生物学
背景情况:
- 过氧化 (H2O2) 和氧化 (NO) 是关键的信号分子,参与各种生理和病理过程.
- 调节不良的H(2) O(2) 和NO生产与衰老,疾病和细胞功能障碍有关.
- 区分H(2) O(2) 和NO之间的相互作用需要复杂的分子工具.
研究的目的:
- 设计和合成一种新的单一光探针,能够区分H(2) O(2),NO,以及它们的联合存在.
- 为了研究开发的探测器的光谱特性和细胞成像能力.
- 建立一个多功能平台,用于监测多种反应性氧和物种.
主要方法:
- 合理设计和化学合成FP-H(2) O(2) -NO光探针.
- 暴露于H(2) O(2) 和NO. 的光谱性质的表征.
- 使用巨细胞进行活细胞成像实验,以监测内源H(2) O(2) 和NO的产生.
主要成果:
- 在FP-H(2) O(2) -NO探针显示不同的光信号 (蓝色-黑色-黑色,黑色-黑色-红色,黑色-红色-红色) 响应H(2) O(2),NO,和H(2) O(2) /NO,分别.
- 通过使用单探头,同时对活巨细胞内源性产生的NO和H(2) O(2) 进行多色成像.
- 探测器在区分分析物质方面表现出高灵敏度和特异性.
结论:
- FP-H(2)O(2)-NO是第一个能够感知H(2)O(2),NO和H(2)O(2)/NO的单一光分子,具有不同的光输出.
- 这种探测器作为一种有价值的分子工具,用于研究细胞信号传输和氧化应激中的H(2) O(2) 和NO之间的复杂相互关系.
- 开发的战略为监测多个ROS和RNS物种提供了一个强大的模块化方法,具有更广泛应用的潜力.
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