Cited by 478Neutrophil, Myeloperoxidase and Oxidative MechanismsRedox biology and oxidative stressBioactive Compounds and Antitumor Agents

Free radicals and phagocytic cells

Rosen, Gerald M., Pou, Sovitj, Ramos, Carroll L., Cohen, Myron S., Britigan, Bradley E.·1995·The FASEB Journal

Abstract

Phagocytes mediate their innate immunological response by releasing products that damage invading microorganisms. These products include proteins such as lysozyme, peroxidases, and elastase as well as reactive oxygen species such as superoxide, hydrogen peroxide, hypohalous acid, and hydroxyl radical. Although it is clear that many phagocytic secretory products have direct cytotoxic potential, understanding is limited of how multiple products interact to generate and modulate the cytotoxic response. This review focuses on recent findings that elucidate the biochemical nature of secretory product interaction in the formation of free radicals, particularly the highly reactive hydroxyl radical. The possible role of these reactions in phagocyte microbicidal activity and inflammatory tissue injury is discussed.—Rosen, G. M., Pou, S., Ramos, C. L., Cohen, M. S., Britigan, B. E. Free radicals and phagocytic cells. FASEB J. 9, 200–209 (1995)

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Crossref · 10.1096/fasebj.9.2.7540156

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  • NOX2 consists of five catalytic subunits, which assemble after phagocytosis forming an active enzymatic complex producing superoxide anions and hydrogen peroxide along with the formation of hydroxyl radicals, the latter pathway being catalyzed by iron via the Fenton reaction.

    “NOX2 consists of five catalytic subunits, which assemble after phagocytosis thereby forming an active enzymatic complex producing superoxide anions and hydrogen peroxide along with the formation of hydroxyl radicals, the latter pathway being catalyzed by iron via the Fenton reaction (56, 59–61).”

    From Macrophage defense mechanisms against intracellular bacteria (2015) · cites this paper as [60]

  • Iron has various effects on the immune system, either by modulating immune cell proliferation and differentiation, by controlling various immune effector mechanisms of immune cells, or by directly interfering with anti-microbial immune effector pathways such as the catalysis of toxic radical formation by macrophages.

    “Iron has various effects on the immune system, either by modulating immune cell proliferation and differentiation, by controlling various immune effector mechanism of immune cells and by directly interfering with anti-microbial immune effector pathways such as the catalysis of toxic radical formation by macrophages”

    From Iron in immune cell function and host defense (2021) · cites this paper as [118]

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Authors
Rosen, G. M., Pou, S., Ramos, C. L., Cohen, M. S., & Britigan, B. E.
Affiliations
  • University of Maryland, Baltimore (US)
  • University of North Carolina at Chapel Hill (US)
  • University of Iowa (US)
Corresponding author
Rosen, Gerald M.
Venue
The FASEB Journal
Publisher
Wiley
Published
1995-02
Volume
9
Issue
2
Pages
200-209
ISSN
  • 0892-6638 (ISSN-L)
  • 1530-6860
OpenAlex
W2110509373
Cited by
478
References
100
Citations by year
2026: 4 · 2024: 8 · 2023: 6 · 2022: 13 · 2021: 8 · 2020: 9 · 2019: 7 · 2018: 12 · 2017: 12 · 2016: 8 · 2015: 19 · 2014: 15 · 2013: 12 · 2012: 9
FWCI
11.04
Type
journal article
Language
en
Open access
closed
Locations
  • The FASEB Journal (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health (5r29hl044275-05, 5p01ai028412-05, 5r01hl033550-08)
  • National Heart, Lung, and Blood Institute (HL-44275, HL33550)
  • National Institute of Allergy and Infectious Diseases (AI-28412)
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › Neutrophil, Myeloperoxidase and Oxidative Mechanisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Redox biology and oxidative stress
  • Life Sciences › Pharmacology, Toxicology and Pharmaceutics › Toxicology › Bioactive Compounds and Antitumor Agents
Keywords
phagocytes, free radicals, hydroxyl radicals, reactive oxygen species, lysozyme, peroxidase, elastase, superoxide, hydrogen peroxide, hypohalous acids, microbicidal activity, innate immunity, cytotoxicity
MeSH terms
Amino Acid Oxidoreductases, Animals, Catalysis, Free Radicals, Humans, Inflammation, Leukocytes, NADH, NADPH Oxidoreductases, Nitric Oxide, Oxidation-Reduction, Phagocytes, Phagocytosis, Hydroxyl Radical, Nitric Oxide Synthase, NADPH Oxidases

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