Cited by 359Nitric Oxide and Endothelin EffectsHemoglobin structure and functionMetal-Catalyzed Oxygenation Mechanisms

Ceruloplasmin is a NO oxidase and nitrite synthase that determines endocrine NO homeostasis

Shiva, Sruti, Wang, Xunde, Ringwood, Lorna A, Xu, Xueying, Yuditskaya, Susan, Annavajjhala, Vidhya, Miyajima, Hiroaki, Hogg, Neil +2 more·2006·Nature Chemical Biology

Abstract

Nitrite represents a bioactive reservoir of nitric oxide (NO) that may modulate vasodilation, respiration and cytoprotection after ischemia-reperfusion injury. Although nitrite formation is thought to occur via reaction of NO with oxygen, this third-order reaction cannot compete kinetically with the reaction of NO with hemoglobin to form nitrate. Indeed, the formation of nitrite from NO in the blood is limited when plasma is substituted with physiological buffers, which suggests that plasma contains metal-based enzymatic pathways for nitrite synthesis. We therefore hypothesized that the multicopper oxidase, ceruloplasmin, could oxidize NO to NO+, with subsequent hydration to nitrite. Accordingly, plasma NO oxidase activity was decreased after ceruloplasmin immunodepletion, in ceruloplasmin knockout mice and in people with congenital aceruloplasminemia. Compared to controls, plasma nitrite concentrations were substantially reduced in ceruloplasmin knockout mice, which were more susceptible to liver infarction after ischemia and reperfusion. The extent of hepatocellular infarction normalized after nitrite repletion. These data suggest new functions for the multicopper oxidases in endocrine NO homeostasis and nitrite synthesis, and they support the hypothesis that physiological concentrations of nitrite contribute to hypoxic signaling and cytoprotection.

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Crossref · 10.1038/nchembio813

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  • Low NO levels (pM/nM) are physiological and related to activation of high-affinity primary binding targets such as soluble guanylyl cyclase and cytochrome c oxidase.

    “It has been shown that low levels (pM/nM) are physiological and related to the activation of high affinity primary binding targets such as soluble guanylyl cyclase (sGC) and cytochrome c oxidase”
  • The nitrite level in cardiac tissue is a couple of times higher than in plasma due to an unknown form of active transport from blood to tissues or due to oxidation of endogenously generated NO to nitrite by ceruloplasmin, and serves as a significant extravascular pool for NO during tissue hypoxia.

    “The nitrite level in cardiac tissue is a couple of times higher than that in plasma due to an unknown form of active transport from blood to tissues or due to the oxidation of endogenously generated-NO to nitrite by ceruloplasmin [96], and serves as a significant extravascular pool for NO during tissue hypoxia [97].”

    From NO-Rich Diet for Lifestyle-Related Diseases (2015) · cites this paper as [96]

  • Mice deficient for ceruloplasmin show lower basal concentrations of plasma nitrite and less plasma nitrite elevation upon NO administration.

    “This concept is confirmed in mice deficient for ceruloplasmin that showed lower basal concentrations of plasma nitrite and less plasma nitrite elevation upon NO administration [78].”
  • The addition of NO to blood generates significant concentrations of plasma nitrite that involves copper oxidation, which was found to be ceruloplasmin dependent NO oxidation.

    “It was also shown that the addition of NO to blood generates significant concentrations of plasma nitrite that involved copper oxidation, which was found to be ceruloplasmin dependent NO oxidation [78, 79].”

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Authors
Shiva, S., Wang, X., Ringwood, L. A., Xu, X., Yuditskaya, S., Annavajjhala, V., Miyajima, H., Hogg, N., Harris, Z. L., & Gladwin, M. T.
Affiliations
  • National Institutes of Health (US)
  • Johns Hopkins University (US)
  • Hamamatsu University (JP)
  • Medical College of Wisconsin (US)
Corresponding author
Gladwin, Mark T
Venue
Nature Chemical Biology
Published
2006-08-13
Volume
2
Issue
9
Pages
486-493
ISSN
  • 1552-4450 (ISSN-L)
  • 1552-4469
OpenAlex
W1973480138
Cited by
359
References
52
Citations by year
2026: 6 · 2025: 7 · 2024: 6 · 2023: 17 · 2022: 22 · 2021: 22 · 2020: 17 · 2019: 13 · 2018: 13 · 2017: 15 · 2016: 19 · 2015: 22 · 2014: 24 · 2013: 28 · 2012: 24
FWCI
13.40
Type
journal article
Language
en
Open access
closed
Locations
  • Nature Chemical Biology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Physiology › Nitric Oxide and Endothelin Effects
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Hemoglobin structure and function
  • Physical Sciences › Chemistry › Inorganic Chemistry › Metal-Catalyzed Oxygenation Mechanisms
Keywords
ceruloplasmin, nitric oxide homeostasis, multicopper oxidase, aceruloplasminemia, ischemia-reperfusion injury, liver infarction, hypoxia signaling, cytoprotection, nitrate
MeSH terms
Animals, Catalysis, Ceruloplasmin, Endocrine System, Erythrocytes, Female, Homeostasis, Humans, Liver, Male, Mice, Transgenic, Nitric Oxide, Nitrites, Oxidation-Reduction, Plasma, Vasodilation, Reperfusion Injury, Nitric Oxide Synthase, Mice, In Vitro Techniques

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