Imaging Hg2+-Induced Oxidative Stress by NIR Molecular Probe with "Dual-Key-and-Lock" Strategy

文献类型： 外文期刊

第一作者： Yang, Xiaopeng

作者： Yang, Xiaopeng;Han, Xiaojing;Zhang, Yongru;Liu, Jianfei;Tang, Jun;Zhao, Yufen;Ye, Yong;Yang, Xiaopeng;Han, Xiaojing;Zhang, Yongru;Liu, Jianfei;Tang, Jun;Zhao, Yufen;Ye, Yong;Zhao, Yufen;Zhang, Di

作者机构：

期刊名称：ANALYTICAL CHEMISTRY （ 影响因子：6.986； 五年影响因子：6.755 ）

ISSN： 0003-2700

年卷期： 2020 年 92 卷 17 期

页码：

收录情况： SCI

摘要： Mercury (Hg) is considered an extremely toxic heavy metal which is extremely harmful to both the human body and environment. In addition, Hg2+-induced oxidative stress also exerts a crucial role to play in pathophysiological mechanisms of mercury toxicity. Thus, efficient and specific fluorescent probes for imaging He -induced oxidative stress are necessary. In the present study, we rationally design a novel Hg2+-activated and ICT-based NIR emission fluorescent probe NIR-HO for sequentially monitoring the ONOO- level with a "dual-key-and-lock" strategy. The probe NIR-HO showed rapid response and excellent specificity and sensitivity for the detection of Hg2+ and ONOO- in vitro. Cell imaging demonstrated that Hg2+-induced oxidative stress was involved in ONOO- upregulation. Also, GSH, NAC, and EDTA were employed as excellent detoxifying drugs against Hg2+-induced toxicity. Moreover, the probe NIR-HO was successfully used for imaging Hg2+ and ONOO- in vivo. In brief, NIR-HO provides a simple and powerful approach which can be used to image Hg2+-induced oxidative stress in the pathological environment.

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