Issue 27, 2016

A lysosome-targeted and ratiometric fluorescent probe for imaging exogenous and endogenous hypochlorous acid in living cells

Abstract

Hypochorous acid plays important roles in numerous physiological and pathological processes. At the cell organelle level, an abnormal concentration of hypochorous acid in the lysosomes causes redox imbalance and the loss of function of the lysosomes. Herein, the first small molecule based, lysosomal-targeted ratiometric fluorescent HOCl probe (Lyso-HA) was synthesized through a rational design. The new probe was highly selective toward HOCl over other reactive oxygen species and exhibits a large variation (up to 97-fold) in its fluorescence ratio (I585/I450), with good signal resolution. The probe Lyso-HA is membrane-permeable and is suitable for ratiometric visualization of exogenous and endogenous HOCl at lysosomes in living cells.

Graphical abstract: A lysosome-targeted and ratiometric fluorescent probe for imaging exogenous and endogenous hypochlorous acid in living cells

Supplementary files

Article information

Article type
Paper
Submitted
30 tra 2016
Accepted
13 lip 2016
First published
13 lip 2016

J. Mater. Chem. B, 2016,4, 4739-4745

A lysosome-targeted and ratiometric fluorescent probe for imaging exogenous and endogenous hypochlorous acid in living cells

M. Ren, B. Deng, K. Zhou, X. Kong, J. Wang, G. Xu and W. Lin, J. Mater. Chem. B, 2016, 4, 4739 DOI: 10.1039/C6TB01085G

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