Issue 5, 2018

A highly sensitive and rapidly responding fluorescent probe based on a rhodol fluorophore for imaging endogenous hypochlorite in living mice

Abstract

Hypochlorous (HOCl) acid is generated as a defense tool in the immune system and plays a vital role in killing a wide range of pathogens. There is therefore great interest in developing fluorescent probes that can endogenously respond to the change in concentration of HOCl in vivo. To address this challenge, we here present a rapidly responding fluorescent probe RO610 to image endogenous HOCl in living mice. The development of RO610 was based on a novel water-soluble and pH-independent fluorescent xanthene dye, 2′-formylrhodol ROA, which exhibits highly selective and sensitive responses to HOCl/ClO over other reactive species. Moreover, adding a little more than 5 equiv. of ClO to the solution of RO610 resulted in a clearly observable fluorescence enhancement (48-fold) within 30 s. Based on these properties, RO610 was used to detect ClO in A549 cells without interference by other oxidants. It was applied for the imaging of endogenous HOCl in living nude mice with satisfactory results.

Graphical abstract: A highly sensitive and rapidly responding fluorescent probe based on a rhodol fluorophore for imaging endogenous hypochlorite in living mice

Supplementary files

Article information

Article type
Paper
Submitted
03 ное 2017
Accepted
29 дек 2017
First published
04 яну 2018

J. Mater. Chem. B, 2018,6, 725-731

A highly sensitive and rapidly responding fluorescent probe based on a rhodol fluorophore for imaging endogenous hypochlorite in living mice

Y. Zhang, L. Ma, C. Tang, S. Pan, D. Shi, S. Wang, M. Li and Y. Guo, J. Mater. Chem. B, 2018, 6, 725 DOI: 10.1039/C7TB02862H

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements