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The DOI matches its Crossref record; 16 of the 16 references it cites were found in a registry or an index.

A Palette of Fluorescent Probes with Varying Emission Colors for Imaging Hydrogen Peroxide Signaling in Living Cells

Open access
Dickinson, Bryan C., Huynh, Calvin, Chang, Christopher J.·2010·Journal of the American Chemical Society

Abstract

We present a new family of fluorescent probes with varying emission colors for selectively imaging hydrogen peroxide (H(2)O(2)) generated at physiological cell signaling levels. This structurally homologous series of fluorescein- and rhodol-based reporters relies on a chemospecific boronate-to-phenol switch to respond to H(2)O(2) over a panel of biologically relevant reactive oxygen species (ROS) with tunable excitation and emission maxima and sensitivity to endogenously produced H(2)O(2) signals, as shown by studies in RAW264.7 macrophages during the phagocytic respiratory burst and A431 cells in response to EGF stimulation. We further demonstrate the utility of these reagents in multicolor imaging experiments by using one of the new H(2)O(2)-specific probes, Peroxy Orange 1 (PO1), in conjunction with the green-fluorescent highly reactive oxygen species (hROS) probe, APF. This dual-probe approach allows for selective discrimination between changes in H(2)O(2) and hypochlorous acid (HOCl) levels in live RAW264.7 macrophages. Moreover, when macrophages labeled with both PO1 and APF were stimulated to induce an immune response, we discovered three distinct types of phagosomes: those that generated mainly hROS, those that produced mainly H(2)O(2), and those that possessed both types of ROS. The ability to monitor multiple ROS fluxes simultaneously using a palette of different colored fluorescent probes opens new opportunities to disentangle the complex contributions of oxidation biology to living systems by molecular imaging.

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Metadata

Authors
Dickinson, B. C., Huynh, C., & Chang, C. J.
Venue
Journal of the American Chemical Society
Published
2010-04-02
Volume
132
Issue
16
Pages
5906-5915
ISSN
  • 0002-7863 (ISSN-L)
  • 1520-5126
OpenAlex
W2037124284
Cited by
515
References
16
FWCI
13.82
Type
journal article
Language
en
Open access
green

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