Cited by 96Sulfur Compounds in BiologyRedox biology and oxidative stressGarlic and Onion Studies

Hydrogen sulfide and resolution of acute inflammation: A comparative study utilizing a novel fluorescent probe

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Dufton, Neil, Natividad, Jane, Verdu, Elena F., Wallace, John L.·2012·Scientific Reports

Abstract

Hydrogen sulfide is an essential gasotransmitter associated with numerous pathologies. We assert that hydrogen sulfide plays an important role in regulating macrophage function in response to subsequent inflammatory stimuli, promoting clearance of leukocyte infiltrate and reducing TNF-α levels in vivo following zymosan-challenge. We describe two distinct methods of measuring leukocyte hydrogen sulfide synthesis; methylene blue formation following zinc acetate capture and a novel fluorescent sulfidefluor probe. Comparison of these methods, using pharmacological tools, revealed they were complimentary in vitro and in vivo. We demonstrate the application of sulfidefluor probe to spectrofluorimetry, flow cytometry and whole animal imaging, to monitor the regulation of hydrogen sulfide synthesis in vivo during dynamic inflammatory processes. Both methodologies revealed that granulocyte infiltration negatively affects hydrogen sulfide synthesis. Our report offers an insight into the profile of hydrogen sulfide synthesis during inflammation and highlight opportunities raised by the development of novel fluorescent hydrogen sulfide probes.

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Authors
Dufton, N., Natividad, J., Verdu, E. F., & Wallace, J. L.
Affiliations
McMaster University (CA)
Corresponding author
Dufton, Neil
Venue
Scientific Reports
Published
2012-07-09
Volume
2
Issue
1
Pages
499-499
ISSN
2045-2322 (ISSN-L)
OpenAlex
W2056201170
Cited by
95
References
44
Citations by year
2026: 2 · 2025: 6 · 2024: 1 · 2023: 8 · 2022: 11 · 2021: 3 · 2020: 6 · 2019: 11 · 2018: 4 · 2017: 9 · 2016: 6 · 2015: 12 · 2014: 6 · 2013: 10
FWCI
3.84
Type
journal article
Language
en
Open access
Locations
  • Scientific Reports (publishedVersion, cc-by-nc-nd)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
Funders
  • Crohn's and Colitis Foundation
  • Crohn's and Colitis Foundation of Canada
  • Canadian Institutes of Health Research
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biochemistry › Sulfur Compounds in Biology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Redox biology and oxidative stress
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Garlic and Onion Studies
Keywords
hydrogen sulfide, acute inflammation, gasotransmitters, macrophage function, leukocyte infiltration, granulocytes, TNF-α, methylene blue reduction, zinc acetate, fluorescence spectroscopy, whole-animal imaging, inflammation resolution
MeSH terms
Animals, Chemotaxis, Cystathionine beta-Synthase, Fluorescent Dyes, Humans, Hydrogen Sulfide, Inflammation, Leukocytes, Mononuclear, Lipopolysaccharides, Macrophage Activation, Macrophages, Male, Neutrophils, Peritonitis, Phagocytosis, Sulfides, Neutrophil Infiltration, Mice, Molecular Imaging

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