Chem. J. Chinese Universities ›› 2022, Vol. 43 ›› Issue (12): 20220320.doi: 10.7503/cjcu20220320

• Review • Previous Articles     Next Articles

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)

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

CLC Number: 

TrendMD: