Issue 24, 2019

Fluorescent probes for organelle-targeted bioactive species imaging

Abstract

Bioactive species, including reactive oxygen species (ROS, including O2˙, H2O2, HOCl, 1O2, ˙OH, HOBr, etc.), reactive nitrogen species (RNS, including ONOO, NO, NO2, HNO, etc.), reactive sulfur species (RSS, including GSH, Hcy, Cys, H2S, H2Sn, SO2 derivatives, etc.), ATP, HCHO, CO and so on, are a highly important category of molecules in living cells. The dynamic fluctuations of these molecules in subcellular microenvironments determine cellular homeostasis, signal conduction, immunity and metabolism. However, their abnormal expressions can cause disorders which are associated with diverse major diseases. Monitoring bioactive molecules in subcellular structures is therefore critical for bioanalysis and related drug discovery. With the emergence of organelle-targeted fluorescent probes, significant progress has been made in subcellular imaging. Among the developed subcellular localization fluorescent tools, ROS, RNS and RSS (RONSS) probes are highly attractive, owing to their potential for revealing the physiological and pathological functions of these highly reactive, interactive and interconvertible molecules during diverse biological events, which are rather significant for advancing our understanding of different life phenomena and exploring new technologies for life regulation. This review mainly illustrates the design principles, detection mechanisms, current challenges, and potential future directions of organelle-targeted fluorescent probes toward RONSS.

Graphical abstract: Fluorescent probes for organelle-targeted bioactive species imaging

Article information

Article type
Perspective
Submitted
04 Apr 2019
Accepted
23 Mai 2019
First published
24 Mai 2019
This article is Open Access

All publication charges for this article have been paid for by the Royal Society of Chemistry
Creative Commons BY-NC license

Chem. Sci., 2019,10, 6035-6071

Fluorescent probes for organelle-targeted bioactive species imaging

P. Gao, W. Pan, N. Li and B. Tang, Chem. Sci., 2019, 10, 6035 DOI: 10.1039/C9SC01652J

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