Cited by 307Nitric Oxide and Endothelin EffectsCardiovascular Health and Disease PreventionRedox biology and oxidative stress

eNOS Uncoupling in Cardiovascular Diseases - the Role of Oxidative Stress and Inflammation

Karbach, Susanne, Wenzel, Philip, Waisman, Ari, Munzel, Thomas, Daiber, Andreas·2014·Current Pharmaceutical Design

Abstract

Many cardiovascular diseases and drug-induced complications are associated with - or even based on - an imbalance between the formation of reactive oxygen and nitrogen species (RONS) and antioxidant enzymes catalyzing the break-down of these harmful oxidants. According to the "kindling radical" hypothesis, the formation of RONS may trigger in certain conditions the activation of additional sources of RONS. According to recent reports, vascular dysfunction in general and cardiovascular complications such as hypertension, atherosclerosis and coronary artery diseases may be connected to inflammatory processes. The present review is focusing on the uncoupling of endothelial nitric oxide synthase (eNOS) by different mechanisms involving so-called "redox switches". The oxidative depletion of tetrahydrobiopterin (BH4), oxidative disruption of the dimeric eNOS complex, S-glutathionylation and adverse phosphorylation as well as RONS-triggered increases in levels of asymmetric dimethylarginine (ADMA) will be discussed. But also new concepts of eNOS uncoupling and state of the art detection of this process will be described. Another part of this review article will address pharmaceutical interventions preventing or reversing eNOS uncoupling and thereby normalize vascular function in a given disease setting. We finally turn our attention to the inflammatory mechanisms that are also involved in the development of endothelial dysfunction and cardiovascular disease. Inflammatory cell and cytokine profiles as well as their interactions, which are among the kindling mechanisms for the development of vascular dysfunction will be discussed on the basis of the current literature.

Integrity signals

Registry

Crossref · 10.2174/13816128113196660748

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155 of 155 references verified0 citation errors · 0 not checkable

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  • According to the kindling hypothesis of endothelial dysfunction, initial formation of ROS by other sources can promote uncoupling of NOS, amplifying the initial excess of ROS.

    “According to the kindling hypothesis of endothelial dysfunction, the initial formation of ROS by other sources can promote uncoupling of NOS, amplifying the initial excess of ROS (488).”
  • Uncoupling of eNOS has been noted as a target for therapeutic potential.

    “As such, the uncoupling of eNOS has been noted as a target for therapeutic potential (488, 569, 570, 600, 784).”
  • Increased ROS eventually causes eNOS uncoupling via BH4 depletion, Zn/S cluster breakdown, and other routes, further perpetuating the generation of superoxide and other ROS.

    “As discussed in previous section, increased ROS eventually causes eNOS uncoupling via BH4 depletion, Zn/S cluster breakdown, and other routes, further perpetuating the generation of superoxide and other ROS (FIGURE 17) (488, 570).”

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Authors
Karbach, S., Wenzel, P., Waisman, A., Munzel, T., & Daiber, A.
Affiliations
University Medical Center of the Johannes Gutenberg University Mainz (DE)
Venue
Current Pharmaceutical Design
Published
2014-06
Volume
20
Issue
22
Pages
3579-3594
ISSN
1381-6128 (ISSN-L)
OpenAlex
W2157350806
Cited by
307
References
155
Citations by year
2026: 19 · 2025: 22 · 2024: 21 · 2023: 20 · 2022: 34 · 2021: 40 · 2020: 26 · 2019: 23 · 2018: 23 · 2017: 29 · 2016: 19 · 2015: 24 · 2014: 7
FWCI
17.51
Type
journal article
Language
en
Open access
closed
Locations
  • Current Pharmaceutical Design (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Physiology › Nitric Oxide and Endothelin Effects
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiovascular Health and Disease Prevention
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Redox biology and oxidative stress
Keywords
endothelial nitric oxide synthase, eNOS uncoupling, oxidative stress, inflammation, tetrahydrobiopterin, S-glutathionylation, asymmetric dimethylarginine, reactive oxygen and nitrogen species, endothelial dysfunction, hypertension, atherosclerosis, coronary artery disease, vascular dysfunction, cytokines, redox switch
MeSH terms
Cardiovascular Diseases, Humans, Inflammation, Oxidative Stress, Nitric Oxide Synthase Type III

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