Cited by 776Redox biology and oxidative stressNitric Oxide and Endothelin EffectsNeutrophil, Myeloperoxidase and Oxidative Mechanisms

Chemical biology of peroxynitrite: Kinetics, diffusion, and radicals

Ferrer-Sueta, Gerardo, Radi, Rafael·2009·ACS Chemical Biology

Abstract

Peroxynitrite is formed by the very fast reaction of nitric oxide and superoxide radicals, a reaction that kinetically competes with other routes that chemically consume or physically sequester the reagents. It can behave either as an endogenous cytotoxin toward host tissues or a cytotoxic effector molecule against invading pathogens, depending on the cellular source and pathophysiological setting. Peroxynitrite is in itself very reactive against a few specific targets that range from efficient detoxification systems, such as peroxiredoxins, to reactions eventually leading to enhanced radical formation (e.g., nitrogen dioxide and carbonate radicals), such as the reaction with carbon dioxide. Thus, the chemical biology of peroxynitrite is dictated by the chemical kinetics of its formation and decay and by the diffusion across membranes of the species involved, including peroxynitrite itself. On the other hand, most durable traces of peroxynitrite passing (such as 3-nitrotyrosine) are derived from radicals formed from peroxynitrite by routes that represent extremely low-yield processes but that have potentially critical biological consequences. Here we have reviewed the chemical kinetics of peroxynitrite as a biochemical transient species in order to estimate its rates of formation and decay and then its steady-state concentration in different intra- or extracellular compartments, trying to provide a quantitative basis for its reactivity; additionally, we have considered diffusion across membranes to locate its possible effects. Finally, we have assessed the most successful attempts to intercept peroxynitrite by pharmacological intervention in their potential to increment the existing biological defenses that routinely deal with this cytotoxin.

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Crossref · 10.1021/cb800279q

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  • Peroxynitrite oxidative processes include direct oxidations and secondary reactions due to nitrogen dioxide, hydroxyl and carbonate radicals.

    “These include direct oxidations and secondary reactions due to nitrogen dioxide, hydroxyl and carbonate radicals [120,121].”

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Authors
Ferrer-Sueta, G., & Radi, R.
Affiliations
  • Laboratorio de Físicoquímica Biológica, Facultad de Ciencias
  • Departamento de Bioquímica
Venue
ACS Chemical Biology
Published
2009-03-06
Volume
4
Issue
3
Pages
161-177
ISSN
  • 1554-8929 (ISSN-L)
  • 1554-8937
OpenAlex
W2078672958
Cited by
776
References
133
Citations by year
2026: 29 · 2025: 33 · 2024: 41 · 2023: 45 · 2022: 62 · 2021: 56 · 2020: 39 · 2019: 41 · 2018: 52 · 2017: 48 · 2016: 41 · 2015: 38 · 2014: 39 · 2013: 51 · 2012: 50
FWCI
4.11
Type
journal article
Language
en
Open access
closed
Locations
  • ACS Chemical Biology (publishedVersion)
  • PubMed (publishedVersion)
Funders
Howard Hughes Medical Institute
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Redox biology and oxidative stress
  • Health Sciences › Medicine › Physiology › Nitric Oxide and Endothelin Effects
  • Life Sciences › Immunology and Microbiology › Immunology › Neutrophil, Myeloperoxidase and Oxidative Mechanisms
Keywords
peroxynitrite, nitric oxide, superoxide, reaction kinetics, diffusion across membranes, peroxiredoxin, nitrotyrosine, nitroxyl, carbonate radical, nitrogen dioxide radical, radical formation, cytotoxicity, pharmacological interventions, reactive oxygen species
MeSH terms
Animals, Antioxidants, Carbon Dioxide, Diffusion, Hemeproteins, Humans, Kinetics, Nitric Oxide, Oxygen, Peroxidases, Superoxides, Nitric Oxide Synthase, Peroxynitrous Acid

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