Cited by 238Immune cells in cancerNitric Oxide and Endothelin EffectsRedox biology and oxidative stress

Nitric Oxide in Macrophage Immunometabolism: Hiding in Plain Sight

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Palmieri, Erika M., McGinity, Christopher, Wink, David A., McVicar, Daniel W.·2020·Metabolites

Abstract

Nitric Oxide (NO) is a soluble endogenous gas with various biological functions like signaling, and working as an effector molecule or metabolic regulator. In response to inflammatory signals, immune myeloid cells, like macrophages, increase production of cytokines and NO, which is important for pathogen killing. Under these proinflammatory circumstances, called “M1”, macrophages undergo a series of metabolic changes including rewiring of their tricarboxylic acid (TCA) cycle. Here, we review findings indicating that NO, through its interaction with heme and non-heme metal containing proteins, together with components of the electron transport chain, functions not only as a regulator of cell respiration, but also a modulator of intracellular cell metabolism. Moreover, diverse effects of NO and NO-derived reactive nitrogen species (RNS) involve precise interactions with different targets depending on concentration, temporal, and spatial restrictions. Although the role of NO in macrophage reprogramming has been in evidence for some time, current models have largely minimized its importance. It has, therefore, been hiding in plain sight. A review of the chemical properties of NO, past biochemical studies, and recent publications, necessitates that mechanisms of macrophage TCA reprogramming during stimulation must be re-imagined and re-interpreted as mechanistic results of NO exposure. The revised model of metabolic rewiring we describe here incorporates many early findings regarding NO biochemistry and brings NO out of hiding and to the forefront of macrophages immunometabolism.

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  • The role of •NO in macrophage reprogramming has been known for a long time, but current models greatly underestimate its importance.

    “The role of •NO in macrophage reprogramming has been known for a long time, but current models greatly underestimate its importance [125].”

    From The Role of Reactive Species on Innate Immunity (2022) · cites this paper as [125]

  • The •NO/ROS balance is important during the transition from Th1 to Th2.

    “The •NO/ROS balance is also important during the transition from Th1 to Th2 [125,126].”

    From The Role of Reactive Species on Innate Immunity (2022) · cites this paper as [125]

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Authors
Palmieri, E. M., McGinity, C., Wink, D. A., & McVicar, D. W.
Affiliations
National Cancer Institute (US)
Corresponding author
McVicar, Daniel W.
Venue
Metabolites
Publisher
MDPI AG
Published
2020-10-26
Volume
10
Issue
11
Pages
429
ISSN
2218-1989 (ISSN-L)
OpenAlex
W3096340664
Cited by
237
References
252
Citations by year
2026: 40 · 2025: 59 · 2024: 56 · 2023: 46 · 2022: 15 · 2021: 20 · 2020: 1
FWCI
2.00
Type
journal article
Language
en
Open access
Locations
  • Metabolites (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
National Cancer Institute (ZIA BC 010300, ZIA BC 010899)
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › Immune cells in cancer
  • Health Sciences › Medicine › Physiology › Nitric Oxide and Endothelin Effects
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Redox biology and oxidative stress
Keywords
nitric oxide, macrophage immunometabolism, M1 macrophages, reactive nitrogen species, electron transport chain, heme proteins, cellular respiration, macrophage metabolic reprogramming, inflammation

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