高等学校化学学报 ›› 2022, Vol. 43 ›› Issue (12): 20220320.doi: 10.7503/cjcu20220320

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细胞内源性分子辅助荧光信号放大策略及细胞成像

马小飞1, 胡山1, 李俊彬1, 杨盛2, 谌委菊1, 卿志和1(), 周怡波1(), 杨荣华2()   

  1. 1.长沙理工大学化学化工学院, 细胞化学湖南省重点实验室, 长沙 410114
    2.湖南师范大学化学化工学院, 化学生物学及中药分析教育部重点实验室, 长沙 410081
  • 收稿日期:2022-05-10 出版日期:2022-12-10 发布日期:2022-05-30
  • 通讯作者: 卿志和,周怡波,杨荣华 E-mail:qingzhihe@hnu.edu.cn;yibozhou@163.com;yangrh@pku.edu.cn
  • 基金资助:
    国家自然科学基金(22074008);化学生物传感与计量学国家重点实验室开放基金(2021018)

Cellular Endogenous Molecule-assisted Fluorescence Signal Amplification Strategy and the Application of Cell Imaging

MA Xiaofei1, HU Shan1, LI Junbin1, YANG Sheng2, CHEN Weiju1, QING Zhihe1(), ZHOU Yibo1(), YANG Ronghua2()   

  1. 1.Hunan Provincial Key Laboratory of Cytochemistry,School of Chemistry and Chemical Engineering,Changsha University of Science and Technology,Changsha 410114,China
    2.Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research,Ministry of Education,College of Chemistry and Chemical Engineering,Hunan Normal University,Changsha 410081,China
  • Received:2022-05-10 Online:2022-12-10 Published:2022-05-30
  • Contact: QING Zhihe, ZHOU Yibo, YANG Ronghua E-mail:qingzhihe@hnu.edu.cn;yibozhou@163.com;yangrh@pku.edu.cn
  • Supported by:
    the National Natural Science Foundation of China(22074008);the Open Funds of State Key Laboratory of Chemo/Biosensing and Chemometrics of Hunan University, China(2021018)

摘要:

细胞内原位信号放大策略是检测低丰度内源性目标物的有效手段, 但多数信号放大策略依赖于外源性辅助物, 不可避免地改变细胞内微环境, 进而对机体造成一定干扰. 针对此问题, 可利用细胞内源性物质(如金属离子、 核酸、 蛋白酶等)实现原位荧光信号放大, 对不同生物标志物进行荧光成像, 此方法对低丰度靶分子检测及成像具有重要意义. 本文对内源性物质辅助信号放大及细胞内荧光成像相关研究进行了归纳整理, 介绍了内源性核酸、 酶、 蛋白质、 三磷酸腺苷(ATP)和金属离子辅助信号放大策略, 并探讨了其信号放大机理; 总结了内源性物质辅助信号放大探针在低丰度物质检测及成像方面的研究进展; 最后展望了该策略在细胞成像方面的优势及应用前景.

关键词: 细胞, 内源性分子, 信号放大, 荧光成像

Abstract:

In situ signal amplification strategy is an effective mean to detect low-abundance of endogenous targets. However, most of signal amplification strategies rely on exogenous substances, which inevitably change the intracellular microenvironment and causing certain interference to the body. For this problem, it has been reported that using endogenous substances, such as metal ions, nucleic acids and proteases, can achieve in situ fluorescence signal amplification. Fluorescence imaging of different biomarkers is of great significance for the imaging of low-abundance target molecules. In this review, we summarize the related researches on endogenous substance-assisted signal amplification and the application of cell imaging. Firstly, we introduce endogenous nucleic acid, enzyme, protein, ATP and metal ion-assisted signal amplification strategies and discuss their signal amplification mechanisms. Then, the research progress of endogenous substance-assisted signal amplification probes in the detection and imaging of low-abundance substances was summarized. Finally, we look forward to the advantages and application prospects of this strategy in cell imaging.

Key words: Cell, Endogenous molecule, Signal amplification, Fluorescence imaging

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